Patent US6503223B1 successfully refreshed from Google Patents.
US6503223B1
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US
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Balloon catheter
Assignee: Zeon Corp
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Filing: 1999-03-18
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Granted: 2003-01-07
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Expires: 2019-03-18
Abstract
Abstract A balloon catheter provided with a first tubular member in which at least one balloon lumen is formed inside along a longitudinal direction thereof; a balloon unit which is communicated internally with the balloon lumen formed in the first tubular member and capable of being expanded by a fluid fed through that balloon lumen; a second tubular member extending axially inside the balloon unit and provided axially therein with at least one guidewire lumen; a distal end of the balloon unit connected with a distal end of said second tubular member; an overlapped portion formed by overlapping a proximal end of said second tubular member with a distal end of said first tubular member axially over a predetermined distance; a neck portion of a proximal end side of said balloon unit directly or indirectly connected with at least part of said overlapped portion so as to cover at least part of said overlapped portion; and a recess in which a part of an outer circumference of the proximal end of the second tubular member is received and which is formed axially on an outer circumference of the distal end of said first tubular member.
Inventors
- 👤 Akira Sekido
- 👤 Masaru Uchiyama
- 👤 Shinichi Miyata
- 👤 Takashi Kawabata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:16
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/0021; A61M25/0023; A61M25/0026; A61M25/003; A61M25/10; A61M25/104; A61M2025/0034; A61M25/01; A61M2025/0183; A61M2025/1043; A61M2025/1056; A61M2025/1063; A61M25/0029; A61M25/0032
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
191 words
A balloon catheter comprising: a first tubular member in which at least one balloon lumen is formed inside along a longitudinal direction thereof; a balloon unit which is communicated internally with the balloon lumen formed in the first tubular member and capable of being expanded by a fluid fed through that balloon lumen; and a second tubular member extending axially inside the balloon unit and provided axially therein with at least one guidewire lumen; a distal end of the balloon unit connected with a distal end of the second tubular member; an overlapped portion formed by overlapping and substantially contacting outer circumference of a proximal end of said second tubular member with outer circumference of a distal end of said first tubular member axially over a predetermined distance; a neck portion of a proximal end side of said balloon unit connected with at least part of said overlapped portion so as to cover at least part of said overlapped portion; and a portion of an outside diameter on the distal end of the first tubular member being smaller than an outside diameter of the proximal end of the first tubular member.
Claim 2
Dependent Claim
191 words
A balloon catheter comprising: a first tubular member in which at least one balloon lumen is formed inside along a longitudinal direction thereof; a balloon unit which is communicated internally with the balloon lumen formed in the first tubular member and capable of being expanded by a fluid fed through that balloon lumen; and a second tubular member extending axially inside the balloon unit and provided axially therein with at least one guidewire lumen; a distal end of the balloon unit connected with a distal end of the second tubular member; an overlapped portion formed by overlapping and substantially contacting outer circumference of a proximal end of said second tubular member with outer circumference of a distal end of said first tubular member axially over a predetermined distance; a neck portion of a proximal end side of said balloon unit connected with at least part of said overlapped portion so as to cover at least part of said overlapped portion; and a portion of an outside diameter on the distal end of the first tubular member being smaller than an outside diameter of the proximal end of the first tubular member.
Claim 3
Dependent Claim
199 words
A balloon catheter comprising: a first tubular member in which at least one balloon lumen is formed inside along a longitudinal direction thereof; a balloon unit which is communicated internally with the balloon lumen formed in the first tubular member and capable of being expanded by a fluid fed through that balloon lumen; a second tubular member extending axially inside the balloon unit and provided axially therein with at least one guidewire lumen; a distal end of the balloon unit connected with a distal end of said second tubular member; an overlapped portion formed by overlapping and substantially contacting outer circumference of a proximal end of said second tubular member with outer circumference of a distal end of said first tubular member axially over a predetermined distance; a neck portion of a proximal end side of said balloon unit connected with at least part of said overlapped portion so as to cover at least part of said overlapped portion; and a recess in which a part of an outer circumference of the proximal end of the second tubular member is received and which is formed axially on an outer circumference of the distal end of said first tubular member.
Claim 4
Dependent Claim
199 words
A balloon catheter comprising: a first tubular member in which at least one balloon lumen is formed inside along a longitudinal direction thereof; a balloon unit which is communicated internally with the balloon lumen formed in the first tubular member and capable of being expanded by a fluid fed through that balloon lumen; a second tubular member extending axially inside the balloon unit and provided axially therein with at least one guidewire lumen; a distal end of the balloon unit connected with a distal end of said second tubular member; an overlapped portion formed by overlapping and substantially contacting outer circumference of a proximal end of said second tubular member with outer circumference of a distal end of said first tubular member axially over a predetermined distance; a neck portion of a proximal end side of said balloon unit connected with at least part of said overlapped portion so as to cover at least part of said overlapped portion; and a recess in which a part of an outer circumference of the proximal end of the second tubular member is received and which is formed axially on an outer circumference of the distal end of said first tubular member.
Claim 5
Dependent Claim
49 words
The balloon catheter as set forth in claim 2 , wherein said recess is formed by deforming axially a part of the outer circumference of the proximal end of the first tubular member and the axial length of the recess is longer than the length of the overlapped portion.
Claim 6
Dependent Claim
69 words
The balloon catheter as set forth in claim 2 , wherein an inside diameter of the recess is substantially the same as an outside diameter of the second tubular member and a depth of the recess is a depth of an extent surrounding at least ⅓ of the outer circumference of the second tubular member when the proximal end of the second tubular member is fit in the recess.
Claim 7
Dependent Claim
179 words
A balloon catheter comprising: a first tubular member in which at least one balloon lumen is formed inside along a longitudinal direction thereof; a balloon unit which is communicated internally with the balloon lumen formed in the first tubular member and capable of being expanded by a fluid fed through that balloon lumen; and a second tubular member extending axially inside the balloon unit and provided axially therein with at least one guidewire lumen; a distal end of the balloon unit connected with a distal end of said second tubular member; an overlapped portion formed by overlapping and substantially contacting outer circumference of a proximal end of said second tubular member with outer circumference of a distal end of said first tubular member axially over a predetermined distance; a neck portion of a proximal end side of said balloon unit connected with at least part of said overlapped portion so as to cover at least part of said overlapped portion; and a tapered portion where the outside diameter becomes smaller toward the distal end of the first tubular member.
Claim 8
Dependent Claim
179 words
A balloon catheter comprising: a first tubular member in which at least one balloon lumen is formed inside along a longitudinal direction thereof; a balloon unit which is communicated internally with the balloon lumen formed in the first tubular member and capable of being expanded by a fluid fed through that balloon lumen; and a second tubular member extending axially inside the balloon unit and provided axially therein with at least one guidewire lumen; a distal end of the balloon unit connected with a distal end of said second tubular member; an overlapped portion formed by overlapping and substantially contacting outer circumference of a proximal end of said second tubular member with outer circumference of a distal end of said first tubular member axially over a predetermined distance; a neck portion of a proximal end side of said balloon unit connected with at least part of said overlapped portion so as to cover at least part of said overlapped portion; and a tapered portion where the outside diameter becomes smaller toward the distal end of the first tubular member.
Claim 9
Dependent Claim
37 words
The balloon catheter as set forth in claim 5 , wherein said second tubular member has at least partially a tapered portion where the outside diameter becomes smaller toward the proximal end of the second tubular member.
Claim 10
Dependent Claim
42 words
The balloon catheter as set forth in claim 5 , wherein an axial length of the tapered portion, where the outside diameter becomes smaller toward the distal end of the first tubular member, is longer than the length of the overlapped portion.
Claim 11
Dependent Claim
27 words
The balloon catheter as set forth in claims 1 , 2 or 5 , wherein the overlapped portion has a length of 2 mm to 50 mm.
Claim 12
Dependent Claim
38 words
The balloon catheter as set forth in claims 1 , 2 or 5 , wherein an axial length of the proximal end neck portion of the balloon unit is longer than the axial length of the overlapped portion.
Claim 13
Dependent Claim
48 words
The balloon catheter as set forth in claims 1 , 2 or 5 , wherein a proximal end opening of the guidewire lumen formed in the second tubular member is an inclined opening obtained by cutting the proximal end of the second tubular member at a slant angle.
Claim 14
Dependent Claim
47 words
The balloon catheter as set forth in claims 1 , 2 or 5 , wherein the first tubular member and the second tubular member are different in materials and the second tubular member is made of a material superior in flexibility compared with the first tubular member.
Claim 15
Dependent Claim
36 words
The balloon catheter as set forth in claims 1 , 2 or 5 , wherein said first tubular member is comprised of a material having a higher hardness than the hardness of the second tubular member.
Claim 16
Dependent Claim
52 words
The balloon catheter as set forth in claims 1 , 2 or 5 , wherein the first tubular member is comprised of a synthesis resin with a JIS hardness of 50D to 75D and the second tubular member is comprised of a synthesis resin with a JIS hardness of 70A to 95A.
Claim 17
Dependent Claim
33 words
The balloon catheter as set forth in claims 1 , 2 or 5 , wherein the second tubular member has an outside diameter smaller than an outside diameter of the first tubular member.
Claim 18
Dependent Claim
42 words
The balloon catheter as set forth in claims 1 , 2 or 5 , wherein said balloon unit is formed in a taper where the proximal end neck portion of the balloon unit becomes larger in inside diameter toward the proximal end.
Claim 19
Dependent Claim
33 words
The balloon catheter as set forth in claims 1 , 2 or 5 , wherein said first tubular member has a reinforcing wire arranged in the longitudinal direction inside said first tubular member.
Claim 20
Dependent Claim
29 words
The balloon catheter as set forth in claims 1 , 2 or 5 , wherein said first tubular member has a reinforcing fiber braided inside the first tubular member.
Claim 21
Dependent Claim
41 words
The balloon catheter as set forth in claims 1 , 2 or 5 , wherein said balloon unit is comprised of a tubular film member reduced in diameter at the two ends and the film thickness is 15 to 300 μm.
Claim 22
Dependent Claim
38 words
The balloon catheter as set forth in claims 1 , 2 or 5 , wherein said balloon unit has an outside diameter at the time of inflation of the balloon unit of 1.5 to 10.00 mm or so.
Claim 23
Dependent Claim
31 words
The balloon catheter as set forth in claims 1 , 2 or 5 , wherein said balloon unit has an axial length of the balloon unit of 15 to 50 mm.
Claim 24
Dependent Claim
33 words
The balloon catheter as set forth in claims 1 , 2 or 5 , wherein an axial center of the balloon unit and an axial center of the second tubular member are concentric.
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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) | 2006-01-06 | 2006-07-08 | 2007-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-01-06 | 2010-07-08 | 2011-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-01-06 | 2014-07-08 | 2015-01-07 | $7700.00 | Window Closed / Lapsed |