Team SWAGE Briar Duffy Angela Heppner Elizabeth Nee Jeffrey Phillips
February 11 2002
Biomedical Engineering Department
University of Wisconsin-Madison
3 Presentation Overview
Demand for a safer needle
What is it
How does it work
4 Not an average sewing needle . . .
Anatomy of suture needles
Variety of circumstances
5 Background Information
30 of physicians sharp object injuries
Left palm most common site of injury
96 of needles were contaminated
Disease transmission HIV Hepatitis C
Risk of disease transmission low cost and anxiety high
HIV 6 Existing Technology
Puncture resistant gloves
Patents for safer needles
None are in widespread use
Demand still exists
7 JABE 200 The revolution in surgical safety begins now! 8 Inside the JABE
Outer metal sheath with bilateral windows
Fluid filled balloon-like trigger
Mobile inner needle tip attached to one end of balloon
User must consciously activate the tip
No technique change necessary
No additional equipment
Manufacturing techniques already in use
Small diameter tubing
Small diameter balloons
10 Fusion of Two Technologies Micro-machined metals Small-diameter expandable tubing The JABE needle 11 Key Specifications
Ability to deter needle sticks
Closes wounds securely
Feasible to manufacture
Easy to use
12 This device may directly save lives on a daily basis 13 Questions 14 References
Corrin L. A. 10 October 2001. Skin Structure. http//www.geocities.com/ukhsgroup/sk instructure.htm.
Gimble Glove Company LLC. 15 October 2001. Product information. http//www.gimbelglove.co m/product.htm .
Haughton Victor personal communication 8 October 2001.
International Health Care Worker Safety Center . 9 October 2001. Sharp object injury reports by category. http//hsc.virginia.edu/epinet/soi.htm l.
Trott A.T. Wounds and Lacerations Emergency Care and Closure. 2nd ed. Mosby-Year Book St. Louis. 1997.
Walshaw J. (15 October 2001) Tertiary StructureFibrous and Structural Proteins. Available http//www.cryst.bbk.ac.uk/PPS95/course /7_tertiary/struc.html
15 Suturing Techniques
Proper handling and choice of suturing needles and tools
Interrupted suture stitch
Mattress suture stitch
16 Properties of Skin
Heterogeneous layered structure
Epidermis prevents water loss
Dermis provides most of bulk and strength
Collagen most abundant material in dermis
Cellular elements only 10-20 tissue volume
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