US5776141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for intraluminal prosthesis delivery
Assignee: JW Medical Systems Ltd China
•
Filing: 1996-08-26
•
Granted: 1998-07-07
•
Expires: 2016-08-26
Abstract
Abstract A catheter for use in combination with a balloon angioplasty catheter for delivering stents and other intraluminal prostheses comprises a tubular catheter body having a radially expansible portion. The stent is disposed over the radially expansible portion, and structure is provided for retaining the stent on the tubular body prior to deployment. The retaining structure may be active, i.e., requiring the user to retract retaining elements, such as axial members, sheaths, or the like. Alternatively, the retaining structure may be passive, wherein balloon expansion results in release of the prosthesis from the retaining structure. Particular methods for fluoroscopically positioning stents using such delivery catheters, for delivering two or more stents using such delivery catheters, and for overexpanding the ends of the stents for anchoring them in place, are also described.
Inventors
- 👤 Enrique J. Klein
- 👤 Aaron V. Kaplan
- 👤 Mark Clifford
- 👤 Martin Overbeek-Bloem
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:05
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/95; A61F2/958; A61F2/82; A61F2002/826; A61F2002/9583; A61F2250/00; A61F2250/0058; A61F2250/0096; A61F2250/0098
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
114 words
A catheter for use in combination with a balloon catheter for delivering a radially expansible tubular prosthesis having transverse surfaces, said catheter comprising: a tubular catheter body having a proximal end, a distal end, and a lumen therebetween, wherein the catheter body is axially split over a distal region thereof to define a radially expansible portion, and wherein the lumen slidably receives the balloon catheter so that a balloon thereon can be aligned within the radially expansible portion of the body; and a structure comprising abutting surfaces attached to the axially split region of the catheter body which is adapted to engage the transverse surfaces on the tubular prosthesis to inhibit axial movement thereof.
Claim 2
Dependent Claim
114 words
A catheter for use in combination with a balloon catheter for delivering a radially expansible tubular prosthesis having transverse surfaces, said catheter comprising: a tubular catheter body having a proximal end, a distal end, and a lumen therebetween, wherein the catheter body is axially split over a distal region thereof to define a radially expansible portion, and wherein the lumen slidably receives the balloon catheter so that a balloon thereon can be aligned within the radially expansible portion of the body; and a structure comprising abutting surfaces attached to the axially split region of the catheter body which is adapted to engage the transverse surfaces on the tubular prosthesis to inhibit axial movement thereof.
Claim 3
Dependent Claim
33 words
A catheter as in claim 1, wherein the catheter body has a length from 5 cm to 40 cm and the radially expansible portion has a length from 2.5 cm to 4.5 cm.
Claim 4
Dependent Claim
21 words
A catheter as in claim 1, further comprising a proximal shaft attached to the proximal end of the tubular catheter body.
Claim 5
Dependent Claim
49 words
A catheter as in claim 3, wherein the tubular catheter body has a length in the range from 5 cm to 40 cm, the radially expansible portion has a length from 2.5 cm to 4.5 cm, and the proximal shaft has a length from 90 cm to 150 cm.
Claim 6
Dependent Claim
39 words
A catheter as in claim 1, wherein the structure further comprises a sheath which is slidable between a first position covering the radially expansible portion including the abutting surfaces and a second position proximal of the radially expansible portion.
Claim 7
Dependent Claim
38 words
A catheter as in claim 5, wherein the sheath has an inner surface which includes a shoulder which engages a proximal surface on the tubular catheter body to limit distal movement of the sheath relative to the body.
Claim 8
Dependent Claim
41 words
A catheter as in claim 1, wherein the structure further comprises an everted sheath which is drawn from a first position covering at least a portion of the radially expansible portion to a second position proximal of the radially expansible portion.
Claim 9
Dependent Claim
37 words
A catheter as in claim 1, wherein the structure further comprises at least one axial member which is slidable between a first position over the expansible portion and a second position proximal of the radially expansible portion.
Claim 10
Dependent Claim
36 words
A catheter as in claim 8, wherein the structure comprises a plurality of axial members which are translatable between a first position over the expansible portion and a second position proximal of the radially expansible portion.
Claim 11
Dependent Claim
36 words
A catheter as in claim 1, wherein the structure further comprises a proximal collar which extends over the proximal end of the prosthesis and a distal collar which extends over the distal end of the prosthesis.
Claim 12
Dependent Claim
48 words
A catheter as in claim 10, wherein the collars are elastomeric and arranged to constrain expansion of the proximal and distal ends of the balloon so that the balloon expands first over a central portion thereof, wherein such expansion pulls the ends of the prosthesis from the collars.
Claim 13
Dependent Claim
26 words
A catheter as in claim 1, wherein the abutting surfaces are disposed at proximal and distal ends of the radially expansible portion of the catheter body.
Claim 14
Dependent Claim
43 words
A catheter as in claim 1, wherein the abutting surfaces are defined by protrusions formed on the axially split region of the catheter body and aligned to lie within at least one gap inside the prosthesis when the prosthesis is on the catheter.
Claim 15
Dependent Claim
23 words
A catheter as in claim 13, wherein at least one pair of protrusions is positioned to engage circumferentially spaced-apart gaps on the prosthesis.
Claim 16
Dependent Claim
23 words
A catheter as in claim 13, wherein at least one axially elongate protrusion is positioned to engage a similar gap in the prosthesis.
Claim 17
Dependent Claim
25 words
A catheter as in claim 1, wherein the abutting surfaces are defined by spaced-apart rings disposed on the axially split region of the catheter body.
Claim 18
Dependent Claim
20 words
A catheter as in claim 1, wherein the axially split region comprises a plurality of axial segments having webs therebetween.
Claim 19
Dependent Claim
11 words
A catheter as in claim 17, wherein the webs are elastomeric.
Claim 20
Dependent Claim
11 words
A catheter as in claim 17, wherein the webs are non-compliant.
Claim 21
Dependent Claim
46 words
A catheter as in claim 1, wherein the structure comprises a pair of axially spaced-apart radiopaque rings secured to the outside of the catheter body within the axially split region, wherein the rings are axially split to permit expansion with the expandable portion of the body.
Claim 22
Dependent Claim
30 words
A catheter system comprising: a catheter as in claim 1, and a radially expansible tubular prosthesis disposed over the radially expansible portion of the tubular catheter body of the catheter.
Claim 23
Dependent Claim
23 words
A catheter system as in claim 21, wherein the prosthesis is plastically deformable and disposed on the catheter body in a collapsed configuration.
Claim 24
Dependent Claim
21 words
A catheter system as in claim 22, further comprising a sterile package containing the catheter having the tubular prosthesis mounted thereover.
References Cited (Backward Citations)
US4323071B1
Cited
US4323071A
Cited
US4292974A
Cited
US4762129B1
Cited
US4762129A
Cited
US4733665A
Cited
US4776337A
Cited
US4733665B1
Cited
US5102417A
Cited
US4776337B1
Cited
US4733665C2
Cited
US4665918A
Cited
US4775371A
Cited
US4839623A
Cited
US5014089A
Cited
US4877030A
Cited
US5019090A
Cited
US5195984A
Cited
US4950227A
Cited
US5443500A
Cited
US5026377A
Cited
US5108416A
Cited
US5344426A
Cited
US5158548A
Cited
US5242399A
Cited
US5123917A
Cited
US5360443A
Cited
US5163952A
Cited
US5219355A
Cited
US5507768A
Cited
EP0533960A1
Cited
US5591222A
Cited
US5382261A
Cited
US5571086A
Cited
US5360401A
Cited
US5409495A
Cited
US5545209A
Cited
US5445646A
Cited
WO1995011055A1
Cited
US5549563A
Cited
US5620457A
Cited
WO1996033677A1
Cited
US5534007A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-07-06 | 2002-01-05 | 2002-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-07-06 | 2006-01-05 | 2006-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-07-06 | 2010-01-05 | 2010-07-07 | $7700.00 | Window Closed / Lapsed |