Your trial has expired
Upgrade Your Account

Stimulator for Hand Rehabilitation After Tendon Repair

Period of Performance: 09/30/1998 - 09/30/1999

Unknown

Phase 1 SBIR

Recipient Firm

Neurocontrol Corporation
North Ridgeville, OH 44039
Principal Investigator

Abstract

The general purpose of this research is to develop an electrical stimulation system for preventing the formation of peritendinous adhesions during the rehabilitation period after tendon repair surgery in the hand. Digital tendon lacerations are common, occurring in 35% of open-wound finger injuries. After surgical repair of a severed tendon, scar tissue often develops and binds the healing tendon to adjacent tissues, resulting in a stiff digit with limited mobility and functionality. Motion exercise applied to the injured digit after tendon repair has been shown effective in improving tendon excursion and strength. However, with the conventional passive motion protocols, tendon gliding within the sheath is never ensured; the motion is not precisely controlled; and the success of the rehabilitation is highly dependent upon patient compliance. We propose to use percutaneous intramuscular electrical stimulation to actively move the injured finger with precise control, ensuring tendon glide and requiring no patient assistance. A preliminary clinical test will be conducted to establish surgical procedures, to evaluate the exercise protocol, and to assess user acceptance. The feasibility of the technical approach will be evaluated based on the capability of intramuscular stimulation to induce smooth and repeatable digital motions and on the initial medical outcomes. PROPOSED COMMERCIAL APPLICATIONS: This stimulation system can be used in the rehabilitation of the 10,000 cases of digital tendon lacerations that occur in the U.S. every year. By increasing the success rate of tendon repair surgery, costly follow-up medical interventions will be less frequent. Use of the stimulator could also decrease the service time required from therapists, thereby reducing medical care costs.

Similar Awards

Phase 1 SBIR
Growth Factor Coated Sutures for Improved Tendons Repair
awarded $203K on 06/28/2006
Phase 2 SBIR
Growth Factor Coated Sutures for Improved Tendon Repair
awarded $24.6K on 03/15/2010
Phase 2 SBIR
Growth Factor Coated Sutures for Improved Tendon Repair
awarded $624K on 04/01/2010
Phase 2 SBIR
Growth Factor Coated Sutures for Improved Tendon Repair
awarded $768K on 04/01/2009
Phase 2 SBIR
Bioadhesive Membrane Construct to Augment Tendon Repair
awarded $715K on 09/21/2011
Phase 1 STTR
Biomaterials for Adhesion-Free Tendon Repair
awarded $51.3K on 09/09/2005
Phase 1 STTR
Biomaterials for Adhesion-Free Tendon Repair
awarded $48.7K on 12/01/2005
Phase 2 SBIR
Bioadhesive Membrane Construct to Augment Tendon Repair
awarded $1.17MM on 09/01/2012
Phase 1 SBIR
Bioadhesive Membrane Constructs to Augment Tendon Repair
awarded $134K on 04/01/2009
Show All