Canh T Tran

US Patent:

7005026, Feb 28, 2006

Filed:

Nov 15, 2002

Appl. No.:

10/298116

Inventors:

John R Brustad - Dana Point CA, US
Payam Adlparvar - Lake Forest CA, US
Wassim R. Aliahmad - Irvine CA, US
Canh T. Tran - Garden Grove CA, US
Nabil Hilal - Laguna Niguel CA, US
Boun Pravong - Corona CA, US
Raffi S. Pinedjian - Fountain Valley CA, US
Charles C Hart - Summerville SC, US

Assignee:

Applied Medical Resources Corporation - Rancho Santa Margarita CA

International Classification:

B65H 81/00

US Classification:

156175, 156169, 156173, 1563082, 1563096

Abstract:

A releasable mechanism such as a cap is adapted for use with an access sheath having an elongate tube and a handle structure disposed at a proximal end of the tube. The releasable mechanism is sized and configured to fit the handle structure, which is shaped like the bell of a horn, to further facilitate use with surgical instrumentation. The releasable mechanism may operate as a separate cap that snaps onto the handle structure to provide access pathways to the sheath. The releasable mechanism may also be disposed at a proximal end of a surgical instrument to be introduced into the access sheath such that it may be interlocked with the sheath. In a method of manufacturing a kink-resistant sheath, a wire is initially coated with a plastic material, the coated wire is then wrapped around a mandrel forming a plurality of windings, and the wound coated wire is heated until the plastic material melts and bonds the windings to form a wire-reinforced sheath. The plastic material is preferably polyurethane but may be a thermoplastic, a thermoset or any plastic material having hard and/or soft durometer. The wound coated wire may be heated by capturing the windings within a shrink tube or compressing the windings in a mold and heating the windings until the sheath is formed.

US Patent:

7534317, May 19, 2009

Filed:

Dec 28, 2005

Appl. No.:

11/319870

Inventors:

John R. Brustad - Dana Point CA, US
Payam Adlparvar - Lake Forest CA, US
Wassim R. Aliahmad - Irvine CA, US
Canh T. Tran - Garden Grove CA, US
Nabil Hilal - Laguna Niguel CA, US
Boun Pravong - Corona CA, US
Raffi S. Pinedjian - Fountain Valley CA, US
Charles C. Hart - Summerville SC, US

Assignee:

Applied Medical Resources Corporation - Rancho Santa Margarita CA

International Classification:

B65H 81/00
B32B 37/00

US Classification:

156149, 156171

Abstract:

A method of manufacturing a kink resistant sheath includes the steps of coating a wire with a plastic material to form an inner tube, placing a braid over the inner tube, applying a spring reinforcement over the braid and applying a second layer of plastic material over the assembly to form an outer tube of a braided reinforced sheath. The plastic material is preferably polyurethane but may be a thermoplastic, thermoset or any plastic material having hard and/or soft durometer.