William Barton Berry
Physician at Fairview, Pasadena, TX
License number
Colorado 28503
Issued Date
Nov 6, 1987
Renew Date
May 31, 2001
Expiration Date
May 31, 2001
Type
Physician
Address
Address
3339 Fairview St, Pasadena, TX 77504
Professional information
Tunneler And Method For Implanting Subcutaneous Vascular Access Grafts
US Patent:
5306240, Apr 26, 1994
Filed:
Jan 21, 1993
Appl. No.:
8/007245
Inventors:
William Berry - Pasadena TX
Assignee:
Pilling Co. - Fort Washington PA
International Classification:
A61B 1900
US Classification:
604 51
Abstract:
An improved tunneler for placement of an arteriovenous graft in subcutaneous tissue of a patient, includes a shaft with opposite ends carrying a penetrating tip and a handle. The shaft is manually bendable but has sufficient rigidity for retaining a desired curvature when in use. The tip and handle are interchangeable. In implanting a graft, the shaft is passed through an incision near the distal end of a patient's limb to a proximal incision, to form a first tunnel. With the shaft in place in the tunnel, the tip and handle are interchanged, and a graft is attached to the tip and pulled toward the proximal incision until its end is exposed. A second tunnel is then formed, again by passing the instrument through the distal incision toward the proximal incision. The tip and handle are again interchanged, and, with the tip attached to the other end of the graft, the graft is pulled into place to form a loop.