Exchangeable guidewire

Details Exchangeable guidewire Exchangeable guidewire

1994-11-30

1996-04-30

Hindenburg, Max

Surgery

Truss

Pad

A61B 500

Patent

active

055115594

ABSTRACT:
A guidewire for guiding and exchanging body insertable catheters includes a body insertable guide section and an exchange section, both formed of flexible wire. In one embodiment, a pin connector at the distal end of the exchange section includes a truncated conical head, a shank, and a groove between the head and the shank. A socket connector is attached to the proximal end of the guide section. Four indentations are formed in the socket connector, spaced apart angularly 90.degree. from one another. The maximum diameter of the conical head is greater than the distance between opposed nodules. As, the pin connector is insertable into the socket, it temporarily elastically deforms the socket as the head moves past the nodules. The nodules become captured within the groove, to allow rotation of the exchange section relative to the guide section while preventing any substantial axial relative movement of the sections. The exchange section can be disconnected from the guide section by withdrawing the pin connector proximally, again elastically deforming the socket as the head passes the nodules. The connectors permit repeated connections and disconnections, so the guidewire sections are reusable. In another embodiment, the pin connector has a cylindrical head and a narrower recess adjacent the head, and an indentation is formed in the socket connector with a gradually inclined wall that terminates in a steeply inclined edge.

REFERENCES:
patent: 4827941 (1989-05-01), Taylor et al.
patent: 4846193 (1989-07-01), Tremulis et al.
patent: 4875489 (1989-10-01), Messner et al.
patent: 4907332 (1990-03-01), Christian et al.
patent: 4917103 (1990-04-01), Gambale et al.
patent: 4922923 (1990-05-01), Gambale et al.
patent: 4958642 (1990-09-01), Christian et al.
patent: 4966163 (1990-10-01), Kraus et al.
patent: 4969879 (1990-11-01), Lichte
patent: 5031636 (1991-07-01), Gambale et al.
patent: 5109867 (1992-05-01), Twyford, Jr.
patent: 5113872 (1992-05-01), Jahrmarkt et al.
patent: 5117838 (1992-06-01), Palmer et al.
patent: 5133364 (1992-07-01), Palermo et al.
patent: 5188621 (1993-02-01), Samson
patent: 5195535 (1993-03-01), Shank
patent: 5197486 (1993-03-01), Frassica
patent: 5234002 (1993-08-01), Chan
patent: 5247942 (1993-09-01), Prather et al.
Article entitled "Guide Wire Extension" by Constantin Cope, M.D., p. 263 form Radiology, vol. 157, No. 1 1985.

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