Tunneler and method for implanting subcutaneous vascular access

Details Tunneler and method for implanting subcutaneous vascular access Tunneler and method for implanting subcutaneous vascular access

1993-01-21

1994-04-26

Lewis, Ralph

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604 49, 604272, 604 8, 606108, A61B 1900

Patent

active

053062400

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.

REFERENCES:
patent: 3640281 (1972-02-01), Robertson
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patent: 4453928 (1984-06-01), Steiger
patent: 4574806 (1986-03-01), McCarthy
patent: 4684369 (1987-08-01), Wildemeersch
patent: 4792326 (1988-12-01), Beck et al.
patent: 4832687 (1989-05-01), Smith, III
IMPRA publication entitled "Impra Kelly-Wick Access Tunneler Set KW2000" TU 304,691, .COPYRGT.1990.
IMPRA publication entitled "Impra Kelly-Wick Tunneler Set" PT 125.591, .COPYRGT.1989.
The Merck Manual of Diagnosis and Therapy, Fifteenth Edition, "Extracorporeal Procedures" pp. 1576-1577 (1987).
Better Homes and Gardens New Family Medical Guide, "Kidney and Urinary System" pp. 540-542 (1982).

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