Proceedings of the 1995 Fourteenth Southern Biomedical Engineering Conference最新文献_第3页

Fixation of osteochondral fractures with absorbable pins 可吸收针固定骨软骨骨折

Proceedings of the 1995 Fourteenth Southern Biomedical Engineering Conference Pub Date : 1995-04-07 DOI: 10.1109/SBEC.1995.514431

B. Lurate, D. P. Mukherjee, R. N. Kruse, J. Albright

{"title":"Fixation of osteochondral fractures with absorbable pins","authors":"B. Lurate, D. P. Mukherjee, R. N. Kruse, J. Albright","doi":"10.1109/SBEC.1995.514431","DOIUrl":"https://doi.org/10.1109/SBEC.1995.514431","url":null,"abstract":"Smaller osteschondral fragments containing little or no cortex present difficult treatment dilemma. Metallic screws or Kirschner wires often require subsequent removal either as part of the original operative plan or because of problems such as loosening and/or cartilage erosion. An attractive alternative would be a biodegradable implant that would transfix an osteochondral fragment with minimal violation of the articular surface. The objectives of this study are (1) to compare osteochondral fracture fixation of 2mm polyglycolic acid (PGA) absorbable pins (Acufex, Manfield, Mass) with that of Kirschner wires (K-wires) in cadavers, (2) to review patient data where osteochondral fractures were fixed with PGA-pins. The following conclusions were obtained: (1) Cadaver Studies: The biomechanical parameters of the osteochondral fractures fixed with absorbable PGA pins were not statistically different from those fixed with K-wires. Based on these laboratory studies it appears that fixation of osteochondral fractures with bioabsorbable PGA pins may offer a viable alternative to the use of K-wires. (2) Clinical Cases: A short follow up period with four clinical cases indicated that in carefully selected injuries, fixation with absorbable pins could become the treatment of choice of smaller joints. For severely comminuted fractures about major joints, PGA absorbable pins may be an adjunct to metal fixation.","PeriodicalId":332563,"journal":{"name":"Proceedings of the 1995 Fourteenth Southern Biomedical Engineering Conference","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123805884","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

A new hemostasis device for hemodialysis patients 一种用于血液透析患者的新型止血装置

Proceedings of the 1995 Fourteenth Southern Biomedical Engineering Conference Pub Date : 1995-04-07 DOI: 10.1109/SBEC.1995.514507

J.R. Tamarapalli, J. Lemons, J. Dockery, B. Burdick

{"title":"A new hemostasis device for hemodialysis patients","authors":"J.R. Tamarapalli, J. Lemons, J. Dockery, B. Burdick","doi":"10.1109/SBEC.1995.514507","DOIUrl":"https://doi.org/10.1109/SBEC.1995.514507","url":null,"abstract":"The major main aims of the study were to: 1. develop a device to obtain a better result compared to manual puncture site compression; 2. develop a stable device which would not slip during application; 3. help all dialysis patients, especially those patients who are unable to hold their needle puncture sites; 4. relieve the nurse to attend to other activities; and 5. to better utilize the whole length of the graft thereby preventing recirculation of non-dialysis blood and repeatedly puncturing a short length of the graft. A device was fabricated from a light weight plastic material with a C shape. This contour allowed conformity to the various shapes of the dialysis access limbs. The device included a rotatable threaded shaft, with which it was possible to achieve a controlled pressure on the fistula or graft. An internal (shaft) safety mechanism was incorporated so that undue pressure could not be applied on the vascular graft. The device was designed to be stable and comfortable. The puncture site contact surface of the device was designed to be disposable and to minimize any possibilities of cross contamination. Different sizes of clamps were made to best accommodate the various sizes of upper and lower access limbs. An initial clinical study on 25 patients conducted by the dialysis nurses at the University of Alabama at Birmingham and Sylacauga dialysis center, Sylacaga, Alabama demonstrated no problems with the C clamp system.","PeriodicalId":332563,"journal":{"name":"Proceedings of the 1995 Fourteenth Southern Biomedical Engineering Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131287240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Measurement of the intracranial buffering capacity of the cerebrospinal fluid system 脑脊液系统颅内缓冲能力的测定

Proceedings of the 1995 Fourteenth Southern Biomedical Engineering Conference Pub Date : 1995-04-07 DOI: 10.1109/SBEC.1995.514495

E. Walsh, A. Schettini

引用次数: 0

Comparative biomechanical analysis of supracondylar femur fracture fixation: locked intramedullary nail vs. 95/spl deg/ angled plate 股骨髁上骨折固定的生物力学分析:锁定髓内钉与95/spl度/角度钢板

Proceedings of the 1995 Fourteenth Southern Biomedical Engineering Conference Pub Date : 1995-04-07 DOI: 10.1109/SBEC.1995.514489

M. E. Harrow, S. M. David, R. Peindl, S. Frick, J. Kellam

引用次数: 1

A mechanical device to measure the three dimensional motion of the human jaw 测量人下巴三维运动的机械装置

Proceedings of the 1995 Fourteenth Southern Biomedical Engineering Conference Pub Date : 1995-04-07 DOI: 10.1109/SBEC.1995.514442

V. Van Stee, J. Tortal, P.A. Williams, S. Saha

引用次数: 3

Sterilization condition of UHMWPE is measured by thermoluminescence technique 用热释光技术测定了超高分子量聚乙烯的灭菌条件

Proceedings of the 1995 Fourteenth Southern Biomedical Engineering Conference Pub Date : 1995-04-07 DOI: 10.1109/SBEC.1995.514437

O. Hall, M. Jahan

引用次数: 0

Effect of test temperature on vascular residual strain 试验温度对维管残余应变的影响

Proceedings of the 1995 Fourteenth Southern Biomedical Engineering Conference Pub Date : 1995-04-07 DOI: 10.1109/SBEC.1995.514485

J. Vossoughi, T. Caperna

引用次数: 0

Biomechanical evaluation of fixation devices for mandibular angle fractures 下颌角骨折固定装置的生物力学评价

Proceedings of the 1995 Fourteenth Southern Biomedical Engineering Conference Pub Date : 1995-04-07 DOI: 10.1109/SBEC.1995.514426

J. Wittenberg, B. Smith, R. N. Kruse, D. P. Mukherjee

引用次数: 3

The development of a masking device for tinnitus patients 耳鸣患者掩蔽装置的研制

Proceedings of the 1995 Fourteenth Southern Biomedical Engineering Conference Pub Date : 1995-04-07 DOI: 10.1109/SBEC.1995.514415

C.E. Lopez-Reyna, R. Bagla, K.M. Lombard, J. Saunders

引用次数: 3

A zinc calcium phosphorous oxide ceramic and malic acid-Ca(OH)/sub 2/-vitamin E composite for repairing bone defects 氧化锌钙磷陶瓷与苹果酸-钙(OH)/亚2/维生素E复合材料修复骨缺损

Proceedings of the 1995 Fourteenth Southern Biomedical Engineering Conference Pub Date : 1995-04-07 DOI: 10.1109/SBEC.1995.514453

A. Longo, B. Mehling, P. Barre, D. Snead, A. Taylor, D. Reynolds, P. K. Bajpai

{"title":"A zinc calcium phosphorous oxide ceramic and malic acid-Ca(OH)/sub 2/-vitamin E composite for repairing bone defects","authors":"A. Longo, B. Mehling, P. Barre, D. Snead, A. Taylor, D. Reynolds, P. K. Bajpai","doi":"10.1109/SBEC.1995.514453","DOIUrl":"https://doi.org/10.1109/SBEC.1995.514453","url":null,"abstract":"The objective of this investigation was to develop a resorbable zinc calcium phosphorous ceramic oxide (ZCAP) organic acid-vitamin E composite containing an antibiotic for orthopedic and/or dental application, including nearly all cases of trauma of hard tissues. A composite consisting of 3.0 g ZCAP, 1.2 g malic acid, 0.6 g Ca(OH)/sub 2/, 9.6 mg gentamicin sulfate and 20 pl of vitamin E oil was compressed in a 5/16\" die into 0.1 g pellets at a load of 2000 lbs in a hydraulic press. The right femur of experimental animals was accessed by routine surgical procedures. A mid-diaphyseal fracture was created under direct vision using a surgical bone saw. A 0.62 threaded K-wire was inserted into the intramedullary canal and retrograded through the knee using a drill. The implant was placed between the two ends of the fracture and the K-wire antegraded through the pellet into the proximal end of the femur and tested to assure good fixation. The K-wire protruding from the bone was cut flush with the end of the bone using wire cutters. The surgical site was closed using routine surgical procedures. Post surgery, each rat showed normal movement during the ten week experimental period. Gross morphological examination of euthanized animals showed filling of the defect. Radiographic examination of the bones showed resorption of the composite, evidence of bone healing and cancellous bone ingrowth. However, the new bone ingrowth appeared less dense than the cortical bone on either side of the defect. The data collected to date suggest that ZCAP composites can be used as osteoconductive fillers between two fractured ends of a bone.","PeriodicalId":332563,"journal":{"name":"Proceedings of the 1995 Fourteenth Southern Biomedical Engineering Conference","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127240743","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0