Relevant bibliographies by topics / Insertion depth

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Insertion depth'

Author: Grafiati
Published: 4 June 2021
Last updated: 17 February 2022

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Journal articles on the topic "Insertion depth"

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Sudhoff, Holger, Hans Björn Gehl, Ercan Boga, Stefan Müller, Katharina Wilms, Sven Mutze, and Ingo Todt. "Stapes Prosthesis Length: One Size Fits All?" Audiology and Neurotology 24, no. 1 (2019): 1–7. http://dx.doi.org/10.1159/000494915.

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Background: The insertion of the stapes piston into the vestibule provides the physical basis for a successful stapedotomy. In routine clinical practice, two different ways to handle prosthesis length are performed: (1) an individualized measurement of the stapes prosthesis length or (2) a standard prosthesis length for all cases. Objective: The objective of this study was to compare both ways of handling prosthesis length and the effect of these methods on insertional prosthesis depth. Material and Method: We retrospectively evaluated 39 patients after performing a stapedotomy for radiologically estimated vestibular stapes prosthesis insertion depth. The individual measured length data were hypothetically changed to a standard length of 4.75, 5, 5.25, and 5.5 mm, and the insertion depths were compared. Results: The individually measured prosthesis lengths led to an insertion depth between 0.2 and 1.6 mm (mean 0.74 mm). The ratio of insertion depth/vestibular depth was between 8 and 59.1% (mean 26.6%). The different assumed standard lengths led to different rates of the vestibulum positions and possible bony contacts at the vestibulum floor. Conclusion: The individual measurement led to a zero rate of the vestibulum positions of stapes prosthesis pistons with a low insertion depth/vestibular depth ratio.
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Lee, Chang Yong, Won Bae Lee, Yun Mo Yeon, Keun Song, Jeong Hoon Moon, Jung Gu Kim, and Seung Boo Jung. "Joint Characteristics of Spot Friction Stir Welded 5052 Al Alloy Sheet." Advanced Materials Research 15-17 (February 2006): 345–50. http://dx.doi.org/10.4028/www.scientific.net/amr.15-17.345.

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The microstructure and mechanical properties of spot friction stir welded A 5052 alloy were investigated with insertion depth of welding tool. As the insertion depth of welding tool increased, the size of stirring zone increased and the thickness of upper sheet decreased. The value of shear load was the lowest at the shallowest insertion depth and increased to the highest value of 3.35 kN at a 1.6mm of insertion depth. An increase in the pin insertion depth beyond 1.6mm did not result in further increase in the lap shear load. Spot friction stir welded joints showed shear fracture mode at shallower insertion depths and fracture mode changed to plug fracture mode as the insertion depth was deeper.
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Shek, K. T., and David C. C. Lam. "Insertion Behavior of Microneedles for Drug Delivery." Advanced Materials Research 47-50 (June 2008): 1442–45. http://dx.doi.org/10.4028/www.scientific.net/amr.47-50.1442.

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Drug dosage delivered by drug-coated microneedle is dependent on needle insertion behavior. The insertion length and gripping force at varied insertion speeds are determined quantitatively using a precision test frame. The ratio of inserted depth to pressed depth was found to rise asymptotically to a plateau, but decreased rapidly to zero insertion when the needles are pressed less than 1000 microns deep for both silicone rubber and porcine skin. No insertion was observed when the needles are pressed less than 200 microns. The gripping force exerted onto the inserted needle by the skin decreased by 0.1N per mm of needle diameter and insertion depth. The short insertion depth and low force suggest that drug delivery using short 300 micron microneedles would be tenuous. High insertion speeds can help to improve drug delivery, but the improvement is limited to large needles since the results from this study showed that insertions become speedindependent when the needle diameter is less than 130 microns.
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Wilmes, Benedict, and Dieter Drescher. "Impact of Insertion Depth and Predrilling Diameter on Primary Stability of Orthodontic Mini-implants." Angle Orthodontist 79, no. 4 (July 1, 2009): 609–14. http://dx.doi.org/10.2319/071708-373.1.

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Abstract Objective: To test the hypothesis that the impact of the insertion depth and predrilling diameter have no effect on the primary stability of mini-implants. Materials and Methods: Twelve ilium bone segments of pigs were embedded in resin. After implant site preparation with different predrilling diameters (1.0, 1.1, 1.2, and 1.3 mm), Dual Top Screws 1.6 × 10 mm (Jeil, Korea) were inserted with three different insertion depths (7.5, 8.5, and 9.5 mm). The insertion torque was recorded to assess primary stability. In each bone, five Dual Top Screws were used as a reference to compensate for the differences of local bone quality. Results: Both insertion depth and predrilling diameter influenced the measured insertion torques distinctively: the mean insertion torque for the insertion depth of 7.5 mm was 51.62 Nmm (±25.22); for insertion depth of 8.5 mm, 65.53 Nmm (±29.99); and for the insertion depth of 9.5 mm, 94.38 Nmm (±27.61). The mean insertion torque employing the predrill 1.0 mm was 83.50 Nmm (±33.56); for predrill 1.1 mm, 77.50 Nmm (±27.54); for the predrill 1.2 mm, 61.70 Nmm (±28.46); and for the predrill 1.3 mm, 53.10 (±32.18). All differences were highly statistically significant (P < .001). Conclusions: The hypothesis is rejected. Higher insertion depths result in higher insertion torques and thus primary stability. Larger predrilling diameters result in lower insertion torques.
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Maiwald, Christian Achim, Patrick Neuberger, Ingo Mueller-Hansen, Rangmar Goelz, Jörg Michel, Michael Esser, Corinna Engel, Axel R. Franz, and Christian F. Poets. "Nasal insertion depths for neonatal intubation." Archives of Disease in Childhood - Fetal and Neonatal Edition 105, no. 6 (June 22, 2020): 663–65. http://dx.doi.org/10.1136/archdischild-2020-319140.

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AimData on the depth of nasal intubation in neonates are rare, although this is the preferred route in some countries. Therefore, recommendations on optimal nasal intubation depths based on gestational age (GA) and weight are desirable.MethodsWe determined the distances between the middle of thoracic vertebrae 2 (T2) and the tip of the endotracheal tube in 116 X-rays from nasally intubated neonates. The intubation depth (tip to nostril distance) that was documented in the digital patient’s file was then corrected for this distance to reach an optimal nasal insertion depth. Results were plotted against the infant’s GA and weight.ResultsGA-based and birthweight-based charts and formulas for the nasal intubation depth in infants with a GA between 24 and 43 weeks and body weight between 400 and 4500 g were created.ConclusionsGenerated data may help in predicting optimal insertion depths for nasal intubation in neonates.
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Anschuetz, Lukas, Stefan Weder, Georgios Mantokoudis, Martin Kompis, Marco Caversaccio, and Wilhelm Wimmer. "Cochlear Implant Insertion Depth Prediction." Otology & Neurotology 39, no. 10 (December 2018): e996-e1001. http://dx.doi.org/10.1097/mao.0000000000002034.

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Vaughan, N., V. N. Dubey, M. Y. K. Wee, and R. Isaacs. "Devices for accurate placement of epidural Tuohy needle for Anaesthesia administration." Mechanical Sciences 5, no. 1 (January 2, 2014): 1–6. http://dx.doi.org/10.5194/ms-5-1-2014.

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Abstract. The aim of this project is to design two sterile devices for epidural needle insertion which can measure in real time (i) the depth of needle tip during insertion and (ii) interspinous pressure changes through a pressure measurement device as the epidural needle is advanced through the tissue layers. The length measurement device uses a small wireless camera with video processing computer algorithms which can detect and measure the moving needle. The pressure measurement device uses entirely sterile componenets including a pressure transducer to accurately measure syringe saline in mm Hg. The data from these two devices accurately describe a needle insertion allowing comparison or review of insertions. The data was then cross-referenced to pre-measured data from MRI or ultrasound scan to identify how ligemant thickness correlates to our measured depth and pressure data. The developed devices have been tested on a porcine specimen during insertions performed by experienced anaesthetists. We have obtained epidural pressures for each ligament and demonstrated functionality of our devices to measure pressure and depth of epidural needle during insertion. This has not previously been possible to monitor in real-time. The benefits of these devices are (i) to provide an alternative method to identify correct needle placement during the procedure on real patients. (ii) The data describing the speed, depth and pressure during insertion can be used to configure an epidural simulator, simulating the needle insertion procedure. (iii) Our pressure and depth data can be compared to pre-measured MRI and ultrasound to identify previously unknown links between epidural pressure and depth with BMI, obesity and body shapes.
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Mulligan, Renae, Ling Yin, Anthony Lamont, Zhong Xiao Peng, Mark R. Forwood, and Swee Hin Teoh. "Effect of Penetration Rate on Insertion Force in Trabecular Bone Biopsy." Materials Science Forum 654-656 (June 2010): 2225–28. http://dx.doi.org/10.4028/www.scientific.net/msf.654-656.2225.

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Bone biopsy is a common procedure in bone disease diagnoses, therapies and research. In this procedure, bone biopsy needles are inserted into bone tissues. Although needle insertion into bone is often essential for the diagnosis of bone diseases, the hard tissue-needle interactions are not quantitatively understood. In this paper, we describe a quantitative assessment of forces involved in insertion of healthy trabecular bone using clinically applied Jamshidi CrownTM bone biopsy needles of gauge 8 (4-mm diameter). The measured forces were related to the insertion depths up to 25 mm and insertion rates of 1 mm/s to 5 mm/s. At the initial insertion stage, a clear linear force-depth relation was measured. With the increase of the insertion depth, the forces increased nonlinearly. In the final stage of insertion, the forces increased much more quickly at the lower insertion rate than that at the higher insertion rate. The maximum insertion force reached approximately 1000 N when the insertion depth reached 25 mm at the insertion rate of 1 mm/s.
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Krishnappa, Sudeep, and Pankaj Kundra. "Optimal anaesthetic depth for LMA insertion." Indian Journal of Anaesthesia 55, no. 5 (2011): 504. http://dx.doi.org/10.4103/0019-5049.89887.

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Tyndall, Erin R., Richard L. Gill, Kumaran S. Ramamurthi, and Fang Tian. "Membrane Insertion Depth and Curvature Sensing." Biophysical Journal 108, no. 2 (January 2015): 253a. http://dx.doi.org/10.1016/j.bpj.2014.11.1399.

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Dissertations / Theses on the topic "Insertion depth"

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Jangam, Ranjit. "Relationship between damper resistance and damper insertion depth." Morgantown, W. Va. : [West Virginia University Libraries], 2006. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=4509.

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Thesis (M.S.)--West Virginia University, 2006.
Title from document title page. Document formatted into pages; contains xi, 97 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 62-63).
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Lee, Kichol. "Effects of Earplug Material, Insertion Depth, and Measurement Technique on Hearing Occlusion Effect." Diss., Virginia Tech, 2011. http://hdl.handle.net/10919/27021.

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Occlusion effects result from amplification of low frequency components of body- transmitted sound when the ear canal is occluded with hearing protection devices, hearing aids, or other canal-sealing inserts. Since the occlusion effect will enhance the hearing of bodily- generated sounds and result in distorted perception of oneâ s own voice, many people report annoyance with hearing aids and hearing protectors that produce occlusion effects. Previous research has studied the effects of ear device insertion depth and influence of the location of the bone vibrator, which has typically been used as the excitation stimulus. However, the effects of monaural vs. binaural, ear device material, and different excitation stimuli were not investigated. In this research study, the effect of left/right ear canal on the occlusion effect, which was measured objectively as the sound pressure level difference in dB, was investigated. Also, an experiment to determine the effect of earplug types (differing in material and design), insertion depth, and excitation sources was conducted. Lastly, the noise attenuation capability of medical balloon-based earplugs was tested. Ten subjects, six male and four female, volunteered for the three separate experiments. They were subjected to the three earplug types (foam earplugs, premolded flanged earplugs, and medical balloon-based earplugs), two earplug insertion depth levels of shallow and deep (only feasible with the foam earplug and the balloon-based earplug), and two levels of excitation sources, one of which was a forehead-mounted bone vibrator and the other a self vocal utterance of â EEâ to 65 decibels A-weighted (dBA). The attenuation capability of the medical balloon- based earplugs were tested via monaural Real-Ear-Attenuation-at-Threshold (REAT) test per ANSI S3.19-1974 and compared to that of a Peltor H10A earmuff. Experimental results of the first experiment demonstrated that left right ear canal SPL measurements were not statistically different, and therefore subsequent measurements of occlusion effects for the second experiment were conducted via a monaural left ear measurement protocol. The results of the second experiment confirmed significant effects of insertion depth on the occlusion effect. At the shallow insertion, the occlusion effects, on average, were greater by 11.2 dB(linear) (dBZ) then the deep insertion measured at 500 Hz. The effects of earplug type were mixed. At the shallow insertion, earplug type did not influence the occlusion effect. However, the mean occlusion effect, measured at the 1/3-octave band centered at 500 Hz, of deeply inserted balloon-based earplugs was larger than that of foam earplugs by 3.7 dBZ. Excitation sources that were used as the sound energy stimuli to elicit occlusion effects did not show statistically significant differences. The Noise Reduction Rating (NRR), as calculated per ANSI S3.19-1974, of the medical balloon-based earplug was 10 dB while that of a Peltor H10A earmuff was 24 dB. Although the medical balloon-based earplug did not prove to be a high attenuation-hearing protector, it produced a unique flat attenuation across the frequency spectrum, as compared to the typical increasing-with-frequency attenuation, pointing to its potential utility for applications wherein the pitch perception of sound is important.
Ph. D.
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Cénac, Peggy. "Étude statistique de séquences biologiques et convergence de martingales." Toulouse 3, 2006. http://www.theses.fr/2006TOU30065.

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Le système dynamique Chaos Game Representation associe à une suite de lettres dans un alphabet fini, une mesure empirique sur un ensemble. Fournit-elle plus d'information que les méthodes de comptage de mots classiques ? A partir d'une caractérisation basée sur la CGR, on propose une nouvelle famille de tests donnant l'ordre d'une chaîne de Markov homogène. On définit ensuite une construction d'arbres digitaux de recherche, inspirés par la CGR, en insérant successivement les préfixes retournés d'une chaîne de Markov. On montre que les longueurs des branches critiques se comportent, au premier ordre, comme si les séquences insérées étaient indépendantes entre elles. La dernière partie est consacrée à l'étude de la convergence presque sûre des moments normalisés de tout ordre de martingales vectorielles dans le théorème de la limite centrale presque sûr. Les résultats sont appliqués aux erreurs d'estimation et de prédiction dans les régressions linéaires et les processus de branchement
The Chaos Game Representation is a dynamical system which maps a sequence of letters taken from a finite alphabet onto an empirical measure on a set. We show how the CGR can be used to characterize the order of an homogeneous Markov chain and to define a new family of tests. Then we propose a construction of Digital Search Trees, inspired from the CGR, by successively inserting all the returned prefixes of a Markov chain. We give the asymptotic behavior of the critical lengths of paths, which turns out to be, at first order, the same one as in the case of DST built from independent Markov chains. A last part deals with properties of almost sure convergence of vectorial martingales. Under suitable regularity conditions on the growing process, we establish the convergence of normalized moments of all orders in the almost sure central limit theorem. The results are applied to the cumulated errors of estimation and prediction in linear regression models and branching processes
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Seidl, Karsten Kazanzides Peter. "Optical measurement of needle insertion depth /." 2007. http://www.gbv.de/dms/ilmenau/abs/524016534seidl.txt.

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Hsu, Fu-yu, and 許富喻. "Design optimization on the subsidence resistance of the vertebral body cage: Considering different insertion depth of the spikes." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/75878080032826750343.

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碩士
國立臺灣科技大學
機械工程系
98
The vertebral body cages (VBCs) play an important role in the treatment of spinal disorders. However, the VBCs subsiding into the vertebral body may cause some demerits, such as collapse, progression of kyphosis, or fusion failure. These complications may cause some symptoms including spinal pain, deformity, or nerve damage and so on. Based on the past researches, the maximum load was always used to evaluate the subsidence resistance of VBCs. In addition, the spikes of VBCs were assumed to be fully inserted into the vertebral body. However, different VBC designs may have a different load-deformation curve in mechanical tests, and the spikes of VBCs are not fully implanted into the vertebra in clinical applications. Therefore, the purpose of this study was to search the optimum VBC design under different insertion depths of the VBCs. To obtain the VBC design with excellent subsidence resistance, three-dimensional finite element models of the VBC with the vertebra were developed and analyzed by using ANSYS Workbench. Then, Taguchi methods and artificial neural networks were used to construct the objective functions of the VBCs. Finally, genetic algorithms were used to find the optimum designs of the VBCs. In this study, two kinds of the optimization problems are discussed including single insertion depth (1/4, 2/4, 3/4, or 4/4 of spike height) and multiple insertion depth (whole subsidence process). The results showed that the subsidence resistance of the VBCs had much difference in the situations with an insertion depth of 1/4, 2/4, and 3/4. However, it had no significant difference in the situation with an insertion depth of 4/4. Moreover, the optimum parameters of the VBCs for multiple insertion depth were the spike height of 1 mm, the spike width of 1.72 mm, the spike oblique of 1, 16 spike rows per 28 mm, and the spike diameter of 10 mm. In conclusion, the optimum designs of the VBCs revealed excellent subsidence resistance. The artificial neural network based genetic algorithms can effectively reduce the effort and time required for searching the optimum designs of the VBCs. The outcome of this study can directly provide the selection information to orthopedic surgeons. Keywords：Vertebral Body Cage；Subsidence；Finite element Analysis；Artificial Neural Network；Genetic Algorithms
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Chu, Chun-Ming, and 朱俊銘. "Influence of Implant-Abutment Connection Design and Subcrestal Depth of Insertion on Stress Distribution in Mandibular Peri-Implant Crestal Bone." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/74032465747530608475.

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碩士
中國醫藥大學
牙醫學系碩士班
97
Purpose：The aims of this study were to investigate the effects of various implant-abutment connection designs (part 1) and subcrestal-inserting depths (part 2) on the stress in peri-implant crestal bone by using three-dimensional finite element (FE) analysis. Material and methods：Part 1：Thirty-six models with various morse-taper connection designs included different abutment diameters (3 mm, 3.5 mm & 4 mm), and connection depths (4 mm, 6 mm & 8 mm) and conically taper degrees (2∘, 4∘, 6∘& 8∘) between abutment and implant were constructed respectively. Vertical and oblique forces were set as 170N applied on the top surface of the abutment. The maximum values of von-Mises bone stress in the crestal bone around the implant were analyzed statistically by using ANOVA. In addition, the patterns of bone stress around the implant were examined. Part 2：In the crestal region when a morse-tapered implant (which is also one of the platform-switching implant) was subcrestally positioned, two factors were investigated. One is the thickness of cortical bone contacting to implant surface (CB). The other is the depth of subcrestal insertion (nCB). For the models of CB, eights thicknesses from 0.5 to 4 mm were constructed. For nCB, night depths were employed from zero to 1.6 mm. Therefore, a total of 72 FE models were generated. An oblique force of 170N at 45 degree to the long axis of the implant was applied on the top surface of the abutment. The stress distribution and the maximum values of von-Mises stress were recorded and statistically analyzed by using ANOVA. In addition, the experimental strain gauge test was performed to measure the highest strain data of bone around the implant on the four models (CB2-nCB0, CB2-nCB1, CB3-nCB0, and CB3-nCB1; CB2-nCB0 represents 2 mm of CB and 0 mm of nCB). In FE studies of part 1 and part 2, the geometry of bone models was generated based on the cross-section of mandible in the molar region and their material properties were anisotropic, i.e. properties differ in different directions. Results：Part 1： The results demonstrated that implants with smaller abutment diameter and deeper abutment connection did reduce the stresses significantly (p＜.0001) in the supporting bone around the implant under oblique or vertical loading. On the other hand, under vertical loading, less taper degrees of implant-abutment connection resulted in less bone stresses significantly (p＝0.0002) around implants. In oblique loading, however, the similar bone stresses were observed (p＝0.83) among the models with different taper-degree connection. As comparing those three factors, abutment diameter had stronger influence on reducing bone stresses than connection depth did, and the influence of conically taper degree was less. Part 2：The bone stresses were significantly different (P<.0001) among the models with different CB and nCB. CB played a major role in reducing bone stresses. The thicker CB was, the lower the maximal von-Mises stresses in the crestal region were, while the thickness of CB was within 2.5 mm. But, following CB increasing more than 2.5 mm, the decrease of stresses slowed down. However, insufficient thickness of nCB (about 0.2 to 0.4 mm), compared with equicrestal position (i.e. nCB is 0 mm), resulted in higher stresses of bone. On the contrary, lower stresses were found while the thickness of nCB was more than 0.6 mm. On in-vitro study, the peak value of minimum principal strain on crestal bone at models of CB2-nCB0, CB2-nCB1, CB3-nCB0, and CB3-nCB1 were 2012, 1239, 1630, and 945 microstrain respectively. The models with CB3 had lower bone strains than the models with CB2. The models with nCB1 had lower bone strains than the models with nCB0. Conclusion：Part 1：Within the limitations of this study, it was suggested that the narrower and deeper implant-abutment connection had the biomechanical advantage to reduce the stress concentration in the crestal region around the implants. Part 2：While the thickness of CB is more than 2.5 mm, adequate thickness of nCB more than 0.6 mm can help to further reduce the bone stresses around the implants.
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Endres, Sarah. "Antibakterielle Wirksamkeit der photodynamischen Therapie bei verschiedenen Insertionstiefen einer LED-Lichtquelle anhand eines Enterococcus faecalis-Biofilm-Modells." Doctoral thesis, 2017. http://hdl.handle.net/11858/00-1735-0000-0023-3EC9-B.

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Yee, Donna. "The Expanding Diversity of Plant U-box E3 Ubiquitin Ligases in Arabidopsis: Identifying AtPUB18 and AtPUB19 Function during Abiotic Stress Responses." Thesis, 2010. http://hdl.handle.net/1807/26265.

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The ability of plants to sense and respond to environmental and endogenous signals is essential to their growth and development. As part of these diverse cellular functions, ubiquitin-mediated proteolysis has emerged to be an important process involved in how plant signalling pathways can be regulated in response to such cues. Of the three enzymes involved in linking ubiquitin to protein targets, E3 ubiquitin ligases are of interest as they confer substrate specificity during this ubiquitination process. The overall focal point of this research is on plant U-box (PUB) E3 ubiquitin ligases, a family that has undergone a large gene expansion possibly attributable to the regulation of biological processes unique to the plant life cycle. In Arabidopsis there are 64 predicted PUBs, many for which biological roles have yet to be determined. And as research continues to uncover PUB functions, the functional diversity in the gene family will likely expand. Specifically the focus of this research is on characterizing two ARM repeat-containing PUBs – AtPUB18 and AtPUB19. General analysis of pub18 and pub19 T-DNA insertion lines for growth defects did not yield distinct altered phenotypes. Closer inspection of selected lines showed independent gene assortment phenotypes that, with further inordinately convoluted pursuit, proved to have an AtPUB18/19-unrelated outcome. The availability of Arabidopsis microarray databases provided exploratory expression profiling as a starting point to elucidate PUB function. AtPUB19 and closely related AtPUB18 are notable for their increased expression during abiotic stresses. While condition-directed germination assays showed a decreased sensitivity to salt and ABA for pub18 pub19 double insertion lines, no related change in susceptibility to these or other abiotic stress treatments were seen with condition-directed root growth assays. Thus, this preliminary work has begun to reveal insight into the complex abiotic stress-related roles AtPUB18 and AtPUB19 have during mediation of environmental stress acclimation in Arabidopsis.
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Books on the topic "Insertion depth"

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R, Ketten Darlene, ed. In vivo measures of cochlear length and insertion depth of nucleus cochlear implant electrode arrays. [St. Louis: Annals Pub. Co., 1998.

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Evans, Charlotte, Anne Creaton, Marcus Kennedy, and Terry Martin, eds. Equipment and monitoring. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780198722168.003.0006.

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The equipment and monitoring chapter in the Oxford Handbook of Retrieval Medicine benchmarks the standard of care delivered by the retrievalist while transiting through the retrieval environment. Continuous physiological monitoring alerts the retrievalist to potential patient deterioration. Core monitor functions are discussed in depth. Standard equipment such as syringe drivers are explained. In addition, a quick but comprehensive guide to ultrasound and blood gas analysis will be a useful refresher for the reader. Echocardiography findings are tabulated. Intraosseous access and recommended insertion sites are detailed. The chapter ends with sound advice regarding packaging of the equipment and the critically ill patient for optimal safe transport.
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Arntz, Hans-Richard. Sudden cardiac death: epidemiology and prevention. Oxford University Press, 2015. http://dx.doi.org/10.1093/med/9780199687039.003.0005.

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Even if sudden cardiac death is considered to be the most frequent cause of death in adults in industrialized countries, its incidence varies widely, depending on the definition and the source and quality of underlying data. It is estimated that about 70-80% of cases are due to coronary heart disease. The remaining 20% are attributable to a wide variety of inborn, genetically determined or acquired diseases, including a small group with hitherto undefined background. Prevention primarily encompasses the treatment of cardiovascular risk factors to avoid manifestations of coronary heart disease. Furthermore, preventive strategies are targeted to define groups of patients with an increased risk for sudden cardiac death or individuals at risk in specific populations, e.g. competitive athletes. A major target group are patients with impaired left ventricular function, preferentially due to myocardial infarction. These patients, and some less clearly defined patient groups with non-ischaemic cardiomyopathy and heart failure, may benefit from the insertion of an implantable cardioverter-defibrillator. With regard to pharmacological prevention, treatment of the underlying condition is the mainstay, since no antiarrhythmic substance-with the exemption of beta-blockers in some situations-has shown to be of efficacy.
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Gomes, Antonio Marcos Tosoli. O enfrentamento da doença e da morte: As diferentes faces de Jesus como recurso terapêutico. Brazil Publishing, 2020. http://dx.doi.org/10.31012/978-65-5861-306-0.

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This books presents an analysis of different faces of Christ displayed in Catholic Churches in different continents and countries and the relationship that this face can maintain with the health-disease process and coping with death and dying. It proposes to establish a reflection with people who are in this situation or in providing care to them, whether in the professional or personal and family modalities. It is divided into two parts, the first containing the description and analysis of the iconography of the Jesus faces and the second with proposals for their insertion in the daily life, coping with illness and the reality of death
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Manara, Alex, and Samantha Shinde. Neurosurgery. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780198719410.003.0016.

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This chapter discusses the anaesthetic management of neurosurgery. It begins with general principles of neurosurgery, including management of intracranial pressure. Surgical procedures covered include craniotomy (including awake craniotomy), insertion of ventriculo-peritoneal shunt, evacuation of traumatic intracranial haematoma, pituitary surgery, posterior fossa surgery, and interventional radiology treatment of intracranial vascular lesions (with particular attention to subarachnoid haemorrhage). The management of venous air embolism is described, along with a discussion of the neurological determination of death and organ retrieval from a beating-heart donor.
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Manara, Alex, and Samantha Shinde. Neurosurgery. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780198719410.003.0016_update_001.

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This chapter discusses the anaesthetic management of neurosurgery. It begins with general principles of neurosurgery, including management of intracranial pressure. Surgical procedures covered include craniotomy (including awake craniotomy), insertion of ventriculo-peritoneal shunt, evacuation of traumatic intracranial haematoma, pituitary surgery, posterior fossa surgery, and interventional radiology treatment of intracranial vascular lesions (with particular attention to subarachnoid haemorrhage). The management of venous air embolism is described, along with a discussion of the neurological determination of death and organ retrieval from a beating-heart donor.
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Book chapters on the topic "Insertion depth"

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Aspnes, James, and Eric Ruppert. "Depth of a Random Binary Search Tree with Concurrent Insertions." In Lecture Notes in Computer Science, 371–84. Berlin, Heidelberg: Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-53426-7_27.

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Oka, M., H. Takeda, Z. Wang, and K. Maekawa. "Anticorrosive effect by inserting sheet piles on the sides of underground tunnel at shallow depth." In Proceedings of the Second International Conference on Press-in Engineering 2021, Kochi, Japan, 368–75. London: CRC Press, 2021. http://dx.doi.org/10.1201/9781003215226-41.

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Ostergard, Thomas, and Jonathan P. Miller. "Depth Electrodes: Approaches and Complications." In Invasive Studies of the Human Epileptic Brain, edited by Samden D. Lhatoo, Philippe Kahane, and Hans O. Lüders, 50–62. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780198714668.003.0005.

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Depth electrode placement is an invaluable technique in treating patients with refractory epilepsy. Like any neurosurgical operation, planning is the most important phase of the procedure. The seizure focus should first be grossly localized using data from scalp electrodes and seizure semiology. This gross localization will guide placement of invasive electrophysiological hardware. All electrode implantation methods rely on Talairach’s principles of stereotaxis. Traditional electrode implantation is performed with a stereotactic frame. Evolving techniques use frameless stereotaxy or neuroendoscopy for implantation. The most worrisome complication of electrode placement is electrode-associated intracranial haemorrhage. Electrode deviation is a much more common complication, which can be minimized by avoiding extreme insertion angles, minimizing intracranial electrode length, and maximizing entry point accuracy.
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Piovanetti, Omar. "Tube Misdirection and Inadequate Tube Length." In Complications of Glaucoma Surgery. Oxford University Press, 2013. http://dx.doi.org/10.1093/oso/9780195382365.003.0050.

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Tube misdirection and inadequate tube length are 2 problems commonly seen by glaucoma surgeons. These complications can occur at the time of surgery or develop years later. Understanding the underlying causes for these problems and techniques to prevent and manage these issues is critical for successful outcomes. Tube placed too anteriorly. During anterior chamber tube shunt implantation, a 23-gauge needle is commonly used to make entry into the anterior chamber. The tube is then inserted through this track into the space between the corneal and iris planes. For most surgeons the anterior chamber depth has been altered prior to tube insertion from shallowing caused by loss of aqueous volume during creation of a paracentesis or deepening caused by filling the chamber with viscoelastic to create enough room for placement. As the intraocular pressure (IOP) becomes lower, the postoperative anterior chamber depth is not always equal to the preoperative depth. As a result, the iris may move slightly forward, or if the shunt is to be implanted in combination with lens extraction, the iris may move more posteriorly. The unpredictability of postoperative chamber depth prevents consistent intraoperative determination of the appropriate plane of entry. Minimizing steps that affect the anterior chamber depth prior to tube insertion may help avoid these issues. However, despite limiting anterior chamber depth alterations, it is not uncommon for the tube to not end up in the desired anterior chamber plane. The correct plane is in front of the iris with just enough space to prevent iris contact. If the tube ends up too anteriorly, it may rub against the corneal endothelium and result in endothelial cell loss with chronic corneal edema. Alternatively, if the tube is placed too posteriorly, it could rub against the iris and cause chronic low-grade inflammation, worsening glaucoma along with other iritis-related issues. In either case, a new track may be made to direct the tube into the anterior chamber. Tube in iris stroma or in the posterior chamber. Occasionally the tube embeds in the iris stroma during its insertion. Careful preoperative evaluation is important for prevention of this scenario.
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Burch, Jennie, and Brigitte Collins. "Clinical nutrition." In Oxford Handbook of Gastrointestinal Nursing, 311–50. Oxford University Press, 2021. http://dx.doi.org/10.1093/med/9780198833178.003.0013.

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The clinical nutrition chapter is related to nutritional support provided in a number of ways, including enteral and parenteral. It is important for the nurse to understand the care of feeding tubes, such as nasogastric feeding tubes and gastrostomy tubes. There is discussion about short-term and long-term enteral feeding as well as administration of drugs and feed. There is an in-depth exploration of parenteral nutrition that includes catheter access, catheter insertion, and catheter care. There can be issues with clinical nutrition, such as problems associated with feeding termed refeeding syndrome. Succinct discussion related to clinical nutrition can be useful within clinical environments by the nurse.
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Lüders, Hans O. "History of Invasive EEG." In Invasive Studies of the Human Epileptic Brain, edited by Samden D. Lhatoo, Philippe Kahane, and Hans O. Lüders, 3–18. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780198714668.003.0001.

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‘History of Invasive EEG’ traces the development of electroencephalography (EEG) from the pioneering animal studies of Richard Caton (1875) up to the more recent development of stereoencephalography (SEEG) and large subdural electrodes. The following historical highlights are discussed: the first recording of EEG seizures in animals (PY Kaufman); the first recording of EEG in humans (Hans Berger); the first recording of interictal and ictal epileptiform discharges in humans (Hans Berger); the important role played by Reginald Bickford, Carl Sem-Jacobsen, and Jose Delgado in the development of chronically implanted invasive recordings; the development of stereotactic techniques for precise insertion of depth electrodes (Jean Talairach and Jean Bancaud); the use of large subdural plates for recording of EEG and cortical stimulation of extensive cortical regions.
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Lazar, Alina. "Epidural Anesthesia." In Pediatric Anesthesia Procedures, edited by Anna Clebone and Barbara K. Burian, 157–66. Oxford University Press, 2021. http://dx.doi.org/10.1093/med/9780190685188.003.0011.

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During epidural anesthesia, local anesthetics and adjuvants are administered into the epidural space by a single-shot, intermittent, or continuous technique. Epidural analgesia is used for open thoracic surgery, major intra-abdominal surgery with extensive surgical dissection, major lower extremity surgery, and long-term pain management. Epidural anesthesia is contraindicated in pediatric patients with uncorrected coagulopathy, hemophilia, liver disease causing coagulopathy, skin infection at the insertion site, bacteremia/sepsis, or lack of parental consent. Anesthesiologists should be familiar with the current American Society of Regional Anesthesia and Pain Medicine guidelines regarding anticoagulation and bleeding disorders in the setting of neuraxial anesthesia before performing epidural anesthesia. In infants, the tip of the conus medullaris and dural sac are located lower in the spinal column than in adults. Additionally, because the epidural space contains less fat and fibrous tissue than in adults, in infants it is easier to insert an epidural catheter at a lower level and then to thread it up to a higher level. In infants younger than 6 months, the vertebral column remains cartilaginous, and epidural catheters can be visualized with ultrasonography. In infants, for the initial placement of the needle, there is a more subtle “give” as the ligamentum flavum is pierced than in adult patients. As a general rule, the depth of the epidural space is 1 mm/kg of body weight (e.g., the depth of the epidural space in a 10-kg child would be 10 mm). However, because wide variation exists in the depth of the epidural space, a test for loss of resistance is performed as soon as the epidural needle has entered the supraspinous ligament.
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Babu-Narayan, Sonya V. "Ebstein’s malformation of the tricuspid valve." In The EACVI Textbook of Cardiovascular Magnetic Resonance, edited by Massimo Lombardi, Sven Plein, Steffen Petersen, Chiara Bucciarelli-Ducci, Emanuela R. Valsangiacomo Buechel, Cristina Basso, and Victor Ferrari, 524–30. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780198779735.003.0052.

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Ebstein’s anomaly of the tricuspid valve is a rare congenital anomaly (1 in 200 000 live births) and is defined by the septal insertion of the tricuspid valve leaflet being >8 mm/m2 apically displaced from the septal insertion of the mitral valve leaflet. This is due to adherence of the septal leaflet to the ventricular septum secondary to failure of delamination. The inferior–posterior, and occasionally anterior, leaflet may also be displaced and rotated. The anterior leaflet is frequently part-redundant and may be fenestrated. Leaflets may be dysplastic or tethered, altering the surgical options. Ebstein’s anomaly may result in enlargement of the native and functional right atrium, enlargement of the functional right ventricle, left ventricular compression, arrhythmia, sudden death, and heart failure. Cardiovascular magnetic resonance (CMR) enables accurate quantification of right and left ventricular volumes and function, cardiac output, and cardiac shunt from measurement of Qp:Qs. CMR is highly informative regarding the anatomy and function of the tricuspid valve, in particular when the degree of displacement and/or rotation of the tricuspid valve is more than mild to moderate.
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"Tachycardias." In Oxford Handbook of Cardiac Nursing, edited by Kate Olson, 243–60. Oxford University Press, 2014. http://dx.doi.org/10.1093/med/9780199651344.003.0012.

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This chapter looks at the diagnosis and management of tachycardias, including both narrow complex tachycardias and broad complex tachycardias. Atrial fibrillation (AF) is the most common sustained arrhythmia, affecting 1–2% of the general population (5–15% of those over 80 years). There have been a number of developments in arrhythmia care over the last few years in particular in relation to AF and there are now more specialist arrhythmia nurses and nurse-led arrhythmia services than before. AF, arrhythmias, and sudden cardiac death are priority areas of NHS improvement. Recent guidelines for the management of tachycardias are discussed including pharmacological measure, cardioversion, and implantable cardioverter-defibrillator (ICD) insertion.
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Tripathi, Gyanendra, Maryam Faiyaz, Ziaul Hasan, Afreen Khanam, and Arbab Husain. "Gene Editing and Gene Therapies in Cancer Treatment." In Handbook of Research on Advancements in Cancer Therapeutics, 205–24. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-6530-8.ch005.

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In past years, several novel treatments have been given by gene therapies for the treatment of cancer. Gene-based therapeutic approaches include gene transfer, oncolytic virotherapy, and immunotherapy. Gene Transfer or gene editing is the most recent treatment method that allows the insertion of new genes into the cancer cell to mediate the slow growth or death of the cancerous cell. Gene transfer is a very flexible technique, and a wide range of genes and vectors are being used in clinical trials with positive results. CRISPR/Cas9 is found to be a promising technology in cancer research. It helps to dissect the mechanism of tumorigenesis, identify the target for drug development, and helps in the cell-based therapies. Oncology virotherapy uses viral particles that are capable of replicating within the cancer cell and results in cell death. Oncology virotherapy has shown great efficiency in metastatic cancer. In immunotherapy, cells and viral particles are genetically modified before being introduced within the patient's body to trigger the host immune response to destroy cancer cells.
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Conference papers on the topic "Insertion depth"

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Buckenmeyer, Laura E., Kristophe J. Karami, Ata M. Kiapour, Vijay K. Goel, Teck M. Soo, and Constantine K. Demetropoulos. "Optimization of Pedicle Screw Depth in the Lumbar Spine." In ASME 2013 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/sbc2013-14322.

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Optimization of pedicle screw insertion depth for ideal fixation and fusion remains a clinical challenge. Improved screw purchase may improve fixation strength 1, which is especially critical in an osteoporotic patient population. Extended screw insertion depths, up to and through the anterior cortex, have yet to be compared to more commonly used shorter pedicle screws in a laboratory controlled series of experiments. The purpose of this study is to evaluate screw purchase in the osteoporotic lumbar spine as a function of insertion depth, which may be used to optimize pedicle screw-rod constructs.
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Berger, Elliott H. "'Calibrating' the insertion depth of roll-down foam earplugs." In ICA 2013 Montreal. ASA, 2013. http://dx.doi.org/10.1121/1.4800461.

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Lesinski-Schiedat, A., D. Manecke, E. Kludt, T. Lenarz, and E. Bültmann. "Speech understanding dependent from Electrode Insertion depth within CI recipients." In Abstract- und Posterband – 89. Jahresversammlung der Deutschen Gesellschaft für HNO-Heilkunde, Kopf- und Hals-Chirurgie e.V., Bonn – Forschung heute – Zukunft morgen. Georg Thieme Verlag KG, 2018. http://dx.doi.org/10.1055/s-0038-1640459.

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Vaughan, Neil, Venketesh N. Dubey, Michael Y. K. Wee, and Richard Isaacs. "Virtual Reality Based Enhanced Visualization of Epidural Insertion." In ASME 2012 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/detc2012-70951.

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This paper outlines an approach to create stereoscopic 3D computer graphics for visualization of epidural insertions. The graphics are built from several 3D vertex models of the anatomical structures including the vertebrae, tissue layers and the skin, subcutaneous fat, supraspinous ligament, interspinous ligament, ligamentum flavum and epidural space. The 3D models are wrapped with full color textures and vertex edges are rounded. The objects are stored in object files and are rendered as 3D by a custom OpenGL application. Graphics drivers calculate the angles and offset for the two separate stereo images and render both in 3D. The stereoscopic images are viewed through a visor containing two OLED micro-displays in stereo using the page-flipped method. The completed stereo simulation allows depth to be perceived so that the operator can judge depth of the needle tip in relation to tissue layers and bones, which aids to the location of the epidural space. Applying stereoscopic vision to epidural simulators will help the operator to visualize the depths required for correct needle placement in the epidural space.
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Warnecke, A., F. Zelener, O. Majdani, A. Römer, GJ Lexow, A. Giesemann, and T. Lenarz. "Relations between Scalar Shift and Insertion Depth in Human Cochlear Implantation." In Abstract- und Posterband – 90. Jahresversammlung der Deutschen Gesellschaft für HNO-Heilkunde, Kopf- und Hals-Chirurgie e.V., Bonn – Digitalisierung in der HNO-Heilkunde. Georg Thieme Verlag KG, 2019. http://dx.doi.org/10.1055/s-0039-1686538.

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Fanle Meng, Hui Ding, and Guangzhi Wang. "A stereotaxic image-guided surgical robotic system for depth electrode insertion." In 2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC). IEEE, 2014. http://dx.doi.org/10.1109/embc.2014.6945037.

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Khan, Mohammad Mahmudur Rahman, Robert F. Labadie, and Jack H. Noble. "Preoperative prediction of insertion depth of lateral wall cochlear implant electrode arrays." In Image-Guided Procedures, Robotic Interventions, and Modeling, edited by Baowei Fei and Cristian A. Linte. SPIE, 2020. http://dx.doi.org/10.1117/12.2550577.

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Buckenmeyer, Laura E., Kristophe J. Karami, Ata M. Kiapour, Vijay K. Goel, Constantine K. Demetropoulos, and Teck M. Soo. "Biomechanical Effects of Lumbar Pedicle Screw Insertion Depth on Screw Loosening and Fulcrum Location." In ASME 2013 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/sbc2013-14324.

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Osteoporosis is a critical challenge in orthopedic surgery. Osteoporotic patients have an increased risk of loosening and failure of implant constructs due to a weaker bone-implant interface than with healthy bone. Pullout strength of pedicle screws is enhanced by increased screw insertion depth. However, more knowledge is needed to define optimal pedicle screw insertion depth in relation to screw-bone interface biomechanics and the resulting loosening risk. This study evaluates the effects of screw length on loosening risk in the osteoporotic lumbar spine.
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Shin, Hyung Gon, Ikjong Park, and Wan Kyun Chung. "Insertion-depth sensor embedded automatic grasping forceps for precise cornea grasping in keratoplasty." In 2018 IEEE International Conference on Cyborg and Bionic Systems (CBS). IEEE, 2018. http://dx.doi.org/10.1109/cbs.2018.8612229.

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Ebrahimi, Ali, Niravkumar Patel, Changyan He, Peter Gehlbach, Marin Kobilarov, and Iulian Iordachita. "Adaptive Control of Sclera Force and Insertion Depth for Safe Robot-Assisted Retinal Surgery." In 2019 International Conference on Robotics and Automation (ICRA). IEEE, 2019. http://dx.doi.org/10.1109/icra.2019.8793658.

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Reports on the topic "Insertion depth"

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In-depth survey report: comparison of two acoustic test fixtures for measurement of impulse peak insertion loss. U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, November 2013. http://dx.doi.org/10.26616/nioshephb35013a.

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In-depth survey report: comparison of the performances of three acoustic test fixtures using impulse peak insertion loss measurements, Rudyard, Michigan. U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, February 2015. http://dx.doi.org/10.26616/nioshephb35014a.

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You might also be interested in the extended bibliographies on the topic 'Insertion depth' for particular source types:
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