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The Bumps ad device for rapid non invasive quantification of touch sensation

Award Information
Agency: Department of Health and Human Services
Branch: National Institutes of Health
Contract: 2R42TR000462-02
Agency Tracking Number: R42TR000462
Amount: $1,480,486.00
Phase: Phase II
Program: STTR
Solicitation Topic Code: NCATS
Solicitation Number: PA12-089
Timeline
Solicitation Year: 2013
Award Year: 2013
Award Start Date (Proposal Award Date): N/A
Award End Date (Contract End Date): N/A
Small Business Information
4103 E LAKE ST
MINNEAPOLIS, MN 55406-
United States
DUNS: 832721133
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 WILLIAM KENNEDY
 (612) 625-1431
 kenne001@umn.edu
Business Contact
 DANIEL KENNEDY
Phone: (612) 728-8080
Email: kenne042@umn.edu
Research Institution
 REGENTS OF THE UNIVERSITY OF MINNESOTA
 
UNIVERSITY OF MINNESOTA 100 CHURCH ST SE MINNEAPOLIS, MN 55455
MINNEAPOLIS, MN 55455-
United States

 () -
 Nonprofit College or University
Abstract

DESCRIPTION (provided by applicant): Our proposal describes an elegant device called the Bumps that quantifies touch sensation on the fingers at low micron levels. The objectives are to diagnose peripheral neuropathy near its onset, when the possibility for reversal is highest, and to monitor either progression or reversal of neuropathy during treatment. Target neuropathies are those related to chemotherapy and diabetes. Both are potentially treatable if diagnosed early. Common symptoms are numbness, pain,weakness, decreased sweating and impaired vascular function. We propose that early discovery of functionally impaired touch with the Bumps provides a better chance to halt or reverse neuropathy than later discovery by tests that rely on the effects of nerve degeneration for diagnosis. The Bumps is a deceivingly simple, coat pocket size device without power or moving parts that quantifies touch of the fingerpad in a few minutes. The device is a smooth surface marked into several squares, much like a checkerboard. Each square contains five colored circles. One circle in each square contains a tiny particle (bump). Bumps are shaped like thin flattened cylinders. Subjects search the 5 circles of a square with the fingerpad much like feeling skin or any surface.The task is to find the one circle in the square that contains a bump; each square is explored in turn. Bump height is different in each square. When a subject locates a bump there is no need to ask if they felt it. This requirement to locate a bump makesthe test objective. When the finger contacts a bump the fingerprint ridges become slightly distorted and activate underlying Meissner Corpuscles (MCs) touch receptors that are lined along the fingerprint ridges. The MCs relay sensation to the brain for recognition. The absence of a time restriction allows multiple passes over the 5 circles providing opportunity for temporal and spatial summation not possible with methods that measure tactile sense by touching skin with a von Frey monofilament or probe. InPhase I we demonstrated feasibility of the device. Phase II goals are: 1) to test healthy subjects and neuropathy patients and build a database with mean control thresholds for sex and age std. dev. and cutoff values for customers to use as standards tocompare with results from their patients; 2) to test patients frequently during chemotherapy to show the Bumps ability for early diagnosis and for detecting increments of progression of neuropathy; 3) further validation by correlating Bumps results with the density of finger MCs touch receptors counted in reflectance confocal microscopy images of the tested finger; and 4) construction of a master mold to manufacture inexpensive market ready Bumps devices. Phase II goals will be accomplished by contract withthe U of MN Kennedy laboratory (KLAB), and via KLAB with expert collaborators at three other major institutions to incorporate Bumps testing in their protocols to enlarge the number of subjects tested. PUBLIC HEALTH RELEVANCE PUBLIC HEALTH RELEVANCE: The Bumps medical device objectively measures tactile (touch) sensation of fingers at the low micrometer level for early recognition of chemotherapy induced, diabetic and other peripheral neuropathies. We consider it a member of a new generation ofhighly sensitive diagnostic tests that are needed to measure the effectiveness of new emerging therapies.

* Information listed above is at the time of submission. *

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