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Self-Disarming Suture Needle

Self-Disarming Suture Needle. Team SWAGE : Briar Duffy, Angela Heppner, Elizabeth Nee, Jeffrey Phillips February 11, 2002 Biomedical Engineering Department University of Wisconsin-Madison. Presentation Overview. Demand for a safer needle Existing situation Supporting data JABE 200

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Self-Disarming Suture Needle

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  1. Self-Disarming Suture Needle Team SWAGE: Briar Duffy, Angela Heppner, Elizabeth Nee, Jeffrey Phillips February 11, 2002 Biomedical Engineering Department University of Wisconsin-Madison

  2. Presentation Overview • Demand for a safer needle • Existing situation • Supporting data • JABE 200 • What is it? • How does it work?

  3. Not an average sewing needle . . . • Anatomy of suture needles • Variety of circumstances • Locations • Personnel • Wounds • Techniques

  4. 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

  5. Existing Technology • Blunt-tipped needles • Puncture resistant gloves • Patents for safer needles • None are in widespread use • Demand still exists

  6. JABE200 The revolution in surgical safety begins now!

  7. Inside the JABE • Outer metal sheath with bilateral windows • Fluid filled balloon-like trigger • Mobile inner needle tip attached to one end of balloon

  8. User must consciously activate the tip No technique change necessary No additional equipment Manufacturing techniques already in use Small diameter tubing Small diameter balloons Benefits

  9. Fusion of Two Technologies Micro-machined metals Small-diameter expandable tubing The JABE needle

  10. Key Specifications • Ability to deter needle sticks • Closes wounds securely • Biocompatible • Reliable • Feasible to manufacture • Easy to use

  11. This device may directly save lives on a daily basis

  12. Questions?

  13. References • Corrin, L. A. 10 October 2001. “Skin Structure”. http://www.geocities.com/ukhsgroup/skinstructure.htm. • Gimble Glove Company, LLC. 15 October 2001. “Product information.” http://www.gimbelglove.com/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.html. • Trott, A.T. Wounds and Lacerations: Emergency Care and Closure. 2nd ed. Mosby-Year Book, St. Louis. 1997. • Walshaw, J. (15 October 2001) Tertiary Structure—Fibrous and Structural Proteins. Available http://www.cryst.bbk.ac.uk/PPS95/course/7_tertiary/struc.html

  14. Suturing Techniques • Proper handling and choice of suturing needles and tools • Needle varieties • Wound-edge eversion • Interrupted suture stitch • Mattress suture stitch

  15. 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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