US5195969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Co-extruded medical balloons and catheter using such balloons
Assignee: Boston Scientific Scimed Inc
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Filing: 1991-04-26
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Granted: 1993-03-23
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Expires: 2011-04-26
Abstract
Abstract A medical balloon and a catheter utilizing the balloon and a mechanism to attach the medical balloon to the catheter tube, and method of making the balloon. The attachement mechanism forms a joint and comprises a plurality of co-extruded and coextensive layers of different polymeric materials, at least one of which is a base structural layer and the other of which is formed of polyethylene and copolymers thereof or of Selar. The base structural layer is thicker then the other layer. The attachment mechanism can be the balloon itself or it can be a sleeve, either of which is heat sealed to the catheter tube. In either case, the diameter of the catheter at the joint is substantially the same as the tube.
Inventors
- 👤 James C. Wang
- 👤 George R. Roberts
- 👤 Brian A. Pederson, Sr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:56
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/1027; A61M25/1029; A61L; A61L29/00; A61L29/04; A61L29/06; A61M25/1034; A61B; A61B17/00; A61B2017/00743; A61B2017/00778; A61B2017/00783; A61M2025/1043; A61M2025/1075; A61M25/1038; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1334; Y10T428/1352; Y10T428/139; Y10T428/1393
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
89 words
A catheter for medical purposes, said catheter comprising: a tubular member having a distal end and at least one lumen disposed therethrough; a balloon having at least one open end, said open end being sealed at a joint to said distal end, the interior of said balloon being in communication with said lumen, said balloon having an elongated tubular body and comprising a plurality of co-extruded layers of different polymeric materials, at least one of said layers being a polyolefin that is sealed by heat to said tubular member.
Claim 2
Dependent Claim
89 words
A catheter for medical purposes, said catheter comprising: a tubular member having a distal end and at least one lumen disposed therethrough; a balloon having at least one open end, said open end being sealed at a joint to said distal end, the interior of said balloon being in communication with said lumen, said balloon having an elongated tubular body and comprising a plurality of co-extruded layers of different polymeric materials, at least one of said layers being a polyolefin that is sealed by heat to said tubular member.
Claim 3
Dependent Claim
22 words
The catheter according to claim 1 wherein the other of said layers is formed of a material comprising polyethylene and copolymers thereof.
Claim 4
Dependent Claim
23 words
The catheter according to claim 1 wherein the diameter of the tubular member and the diameter of said joint is substantially the same.
Claim 5
Dependent Claim
40 words
The catheter according to claim 1 wherein another of said layers is a base structural layer and has a thickness between about 0.2 and about 2.5 mil. and the other layer has a thickness between about 0.15 and 1.0 mil.
Claim 6
Dependent Claim
44 words
The catheter according to claim 1 wherein said balloon has at least three co-extruded layers, one of said layers being a base structural layer, said base structural layer being disposed between the two layers at least one of which is the heat sealed layer.
Claim 7
Dependent Claim
33 words
The catheter according to claim 1 wherein said balloon has a base structural layer, said base structural layer being a member selected from the group consisting of polyamides, polycarbonates, polyesters and copolymers thereof.
Claim 8
Dependent Claim
27 words
The catheter according to claim 1 wherein the heat sealable layer of said balloon is a member selected from the group consisting of polyethylene and copolymers thereof.
Claim 9
Dependent Claim
53 words
The catheter according to claim 1 wherein the tubular member is formed of a polyolefin comprising polyethylene and said polyolefin is a member selected from the group consisting of polyamides, polycarbonates, polyesters and copolymers thereof and said heat sealable layer is a member selected from the group consisting of polyethylene and copolymers thereof.
Claim 10
Dependent Claim
29 words
The catheter according to claim 1 wherein said balloon has two open ends, said catheter further comprising a distal tip, said distal tip being heat sealed to said balloon.
Claim 11
Dependent Claim
93 words
A catheter for medical purposes, said catheter comprising: a tubular member having a distal end and at least one lumen disposed therethrough; a balloon having at least one open end, said open end being sealed at a joint to said distal end, the interior of said balloon being in communication with said lumen, said balloon having an elongated tubular body and comprising a plurality of co-extruded layers of different polymeric materials, at least one of said layers being a base structural layer and the other of said layers being formed of a Selar.
Claim 12
Dependent Claim
93 words
A catheter for medical purposes, said catheter comprising: a tubular member having a distal end and at least one lumen disposed therethrough; a balloon having at least one open end, said open end being sealed at a joint to said distal end, the interior of said balloon being in communication with said lumen, said balloon having an elongated tubular body and comprising a plurality of co-extruded layers of different polymeric materials, at least one of said layers being a base structural layer and the other of said layers being formed of a Selar.
Claim 13
Dependent Claim
164 words
A catheter for medical purposes, said catheter comprising: a tubular member having a distal end and at least one lumen disposed therein; an elongated medical balloon having an open end, said open end being fitted over a joint at said distal end of said tubular member, the interior of said balloon being in communication with said lumen, said balloon having an elongated, expandable tubular body and comprising a plurality of co-extruded layers of different polymeric materials, neither of which is heat sealed to said tubular member; a sleeve for connecting said medical balloon to said tubular member, said sleeve being disposed over said joint and comprising an elongated tubular body having a predetermined diameter and adhering to both said medical balloon and said catheter, said sleeve comprising a plurality of co-extruded and coextensive layers of different polymeric materials, at least one of said layers being a polymeric layer and another of said layers being selected from the group consisting of polyethylene and copolymers thereof.
Claim 14
Dependent Claim
164 words
A catheter for medical purposes, said catheter comprising: a tubular member having a distal end and at least one lumen disposed therein; an elongated medical balloon having an open end, said open end being fitted over a joint at said distal end of said tubular member, the interior of said balloon being in communication with said lumen, said balloon having an elongated, expandable tubular body and comprising a plurality of co-extruded layers of different polymeric materials, neither of which is heat sealed to said tubular member; a sleeve for connecting said medical balloon to said tubular member, said sleeve being disposed over said joint and comprising an elongated tubular body having a predetermined diameter and adhering to both said medical balloon and said catheter, said sleeve comprising a plurality of co-extruded and coextensive layers of different polymeric materials, at least one of said layers being a polymeric layer and another of said layers being selected from the group consisting of polyethylene and copolymers thereof.
Claim 15
Dependent Claim
20 words
The catheter according to claim 11 wherein said tubular member is formed of a material comprising polyethylene and copolymers thereof.
Claim 16
Dependent Claim
23 words
The catheter according to claim 11 wherein the diameter of the tubular member and the diameter of the joint is substantially the same.
Claim 17
Dependent Claim
24 words
The catheter according to claim 11 wherein the balloon has a layer selected from the group consisting of polyamides, polycarbonates, polyesters and copolymers thereof.
Claim 18
Dependent Claim
24 words
The catheter according to claim 11 wherein the sleeve has a layer selected from the group consisting of polyamides, polycarbonates, polyesters and copolymers thereof.
Claim 19
Dependent Claim
33 words
The catheter according to claim 11 wherein said balloon has two open ends, said catheter further comprising a tip disposed on the other open end, said tip being heat sealed to said balloon.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-03-22 | 1996-09-21 | 1997-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-03-22 | 2000-09-21 | 2001-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-03-22 | 2004-09-21 | 2005-03-23 | $7700.00 | Window Closed / Lapsed |