Multilayer composite tubular structure and method of making

Details Multilayer composite tubular structure and method of making Multilayer composite tubular structure and method of making

1997-01-21

1999-01-12

Zimmerman, John J.

Stock material or miscellaneous articles

All metal or with adjacent metals

Workpiece with longitudinal passageway or stopweld material

428662, 428670, 428672, 428685, 148521, 606195, 623 1, 623 12, 228127, 228194, A61F 206, C21D 908

Patent

active

058585567

ABSTRACT:
A multilayer composite tubular structure for use as a stent in surgical procedures has an outer layer of biocompatible material, a middle layer of radiopaque material, and an inner layer of biocompatible material. The layers are metallurgically bonded, to form a composite stent which is ductile and permits large deformation without delamination between the biocompatible and radiopaque layers. The composite structure formed is visible on a fluoroscope, yet does not obstruct the details of the stent itself, or of the anatomical features surrounding the stent.
A process of forming a multilayer composite tubular structure is also disclosed. A tube formed from radiopaque material is coaxially surrounded by a tube of biocompatible material. The tubes are simultaneously reduced, such as by tube drawing, swaging, or deep drawing, until a composite structure of a desirable diameter and wall thickness is formed. The tubes are then heat treated to cause diffusion bonding of the biocompatible and radiopaque layers.

REFERENCES:
patent: 2836181 (1958-05-01), Tapp
patent: 3155095 (1964-11-01), Brown
patent: 3562820 (1971-02-01), Braun
patent: 3585647 (1971-06-01), Gajewski et al.
patent: 4542539 (1985-09-01), Rowe, Jr. et al.
patent: 4553545 (1985-11-01), Maass et al.
patent: 4731073 (1988-03-01), Robinson
patent: 4733665 (1988-03-01), Palmaz
patent: 4739762 (1988-04-01), Palmaz
patent: 4760849 (1988-08-01), Kropf
patent: 4776337 (1988-10-01), Palmaz
patent: 4793348 (1988-12-01), Palmaz
patent: 4834755 (1989-05-01), Silvestrini et al.
patent: 4878906 (1989-11-01), Lindemann et al.
patent: 4917666 (1990-04-01), Solar et al.
patent: 4981478 (1991-01-01), Evard et al.
patent: 4994069 (1991-02-01), Ritchart et al.
patent: 4994071 (1991-02-01), MacGregor
patent: 5037427 (1991-08-01), Harada et al.
patent: 5059211 (1991-10-01), Stack et al.
patent: 5071407 (1991-12-01), Termin et al.
patent: 5163958 (1992-11-01), Pinchuk
patent: 5192307 (1993-03-01), Wall
patent: 5197978 (1993-03-01), Hess
patent: 5234457 (1993-08-01), Andersen
patent: 5282823 (1994-02-01), Schwartz et al.
patent: 5304120 (1994-04-01), Crandell et al.
patent: 5306286 (1994-04-01), Stack et al.
patent: 5316023 (1994-05-01), Palmaz et al.
patent: 5342348 (1994-08-01), Kaplan
patent: 5356433 (1994-10-01), Rowland et al.
patent: 5372600 (1994-12-01), Beyar et al.
patent: 5419760 (1995-05-01), Narciso, Jr.
patent: 5423849 (1995-06-01), Engelson et al.
patent: 5423885 (1995-06-01), Williams
patent: 5425739 (1995-06-01), Jessen
patent: 5441516 (1995-08-01), Wang et al.
patent: 5443496 (1995-08-01), Schwartz et al.
patent: 5443498 (1995-08-01), Fontaine
patent: 5449373 (1995-09-01), Pinchasik et al.
patent: 5476508 (1995-12-01), Amstrup
patent: 5480423 (1996-01-01), Ravenscroft et al.
patent: 5503636 (1996-04-01), Schmitt et al.
patent: 5507767 (1996-04-01), Maeda et al.
patent: 5514154 (1996-05-01), Lau et al.
patent: 5522822 (1996-06-01), Phelps et al.
patent: 5527354 (1996-06-01), Fontaine et al.
patent: 5536274 (1996-07-01), Neuss
patent: 5540701 (1996-07-01), Sharkey et al.
patent: 5545210 (1996-08-01), Hess et al.
patent: 5551444 (1996-09-01), Einlayson
patent: 5628787 (1997-05-01), Mayer
patent: 5630840 (1997-05-01), Mayer
patent: 5637113 (1997-06-01), Tartaglia et al.
patent: 5662713 (1997-09-01), Anderson et al.
patent: 5667523 (1997-09-01), Bynon et al.
patent: 5679470 (1997-10-01), Mayer
The Palmaz Balloon-Expandable Stent, by Johnson & Johnson Interventional Systems Co., no date.

Affiliated with

Also associated with

Rating

Multilayer composite tubular structure and method of making does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multilayer composite tubular structure and method of making, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multilayer composite tubular structure and method of making will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1513202