US5605543A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catheter having shaft of varying stiffness
Assignee: Boston Scientific Scimed Inc
•
Filing: 1996-01-30
•
Granted: 1997-02-25
•
Expires: 2016-01-30
Abstract
Abstract A medical device such as a catheter is described having a stiff, preferably metallic, proximal tube. The distal portion of the proximal tube may have a plurality of perforations or slots formed therein to increase its flexibility. This provides a smooth transition between the relatively stiff proximal tube and a more flexible distal polymeric tube.
Inventors
- 👤 William J. Swanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:08
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/104; A61M25/01; A61M25/06; A61M25/0043; A61M25/0054; A61M2025/0063; A61M2025/0183; A61M25/0105; A61M25/0133; A61M25/0138
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
146 words
A catheter comprising: (a) an inner tube; and (b) an outer tube positioned around the inner tube and forming a lumen between the outer tube and inner tube, the outer tube comprising: (i) a proximal section having a distal portion, the distal portion having a substantially circular and uninterrupted cross-section throughout its length and a first flexibility; (ii) a distal section having a proximal portion, the proximal portion having a substantially circular and uninterrupted cross-section throughout its length and a second flexibility; and (iii) a transition section intermediate the proximal section and the distal section, the transition section having one or more openings therein, with the transition section being configured to provide a flexibility which is greater than the first flexibility of the distal portion of the proximal section and which flexibility is less than the second flexibility of the proximal portion of the distal section.
Claim 2
Dependent Claim
146 words
A catheter comprising: (a) an inner tube; and (b) an outer tube positioned around the inner tube and forming a lumen between the outer tube and inner tube, the outer tube comprising: (i) a proximal section having a distal portion, the distal portion having a substantially circular and uninterrupted cross-section throughout its length and a first flexibility; (ii) a distal section having a proximal portion, the proximal portion having a substantially circular and uninterrupted cross-section throughout its length and a second flexibility; and (iii) a transition section intermediate the proximal section and the distal section, the transition section having one or more openings therein, with the transition section being configured to provide a flexibility which is greater than the first flexibility of the distal portion of the proximal section and which flexibility is less than the second flexibility of the proximal portion of the distal section.
Claim 3
Dependent Claim
11 words
The catheter of claim 1 wherein the transition section is metallic.
Claim 4
Dependent Claim
118 words
A catheter comprising: (a) an inner tube comprising (i) a non-perforated proximal section having a distal end with a first flexibility; (ii) a non-perforated distal section having a proximal end with a second flexibility; and (iii) a transition section intermediate the proximal section and the distal section, the transition section having one or more openings therein, with the transition section being configured to provide a flexibility which is greater than the first flexibility of the distal end of the proximal section and which flexibility is less than the second flexibility of the proximal end of the distal section; and b) an outer tube having a continuous surface positioned in co-axial relation about and bonded to the transition section.
Claim 5
Dependent Claim
118 words
A catheter comprising: (a) an inner tube comprising (i) a non-perforated proximal section having a distal end with a first flexibility; (ii) a non-perforated distal section having a proximal end with a second flexibility; and (iii) a transition section intermediate the proximal section and the distal section, the transition section having one or more openings therein, with the transition section being configured to provide a flexibility which is greater than the first flexibility of the distal end of the proximal section and which flexibility is less than the second flexibility of the proximal end of the distal section; and b) an outer tube having a continuous surface positioned in co-axial relation about and bonded to the transition section.
Claim 6
Dependent Claim
11 words
The catheter of claim 3 wherein the transition section is metallic.
Claim 7
Dependent Claim
15 words
The catheter of claim 4 wherein one or more of the openings have beveled edges.
Claim 8
Dependent Claim
15 words
The catheter of claim 3 wherein one or more of the openings have beveled edges.
Claim 9
Dependent Claim
16 words
The catheter of claim 3 wherein the outer tube is chemically bonded to the transition section.
Claim 10
Dependent Claim
22 words
The catheter of claim 3 wherein the outer tube is plastic and extends into a depth of the one or more openings.
Claim 11
Dependent Claim
127 words
A catheter comprising: (a) an inner tube comprising; (i) a non-perforated proximal section having a distal end with a first flexibility; (ii) a non-perforated distal section having a proximal end with a second flexibility; (iii) a transition section intermediate the proximal section and the distal section, the transition section having one or more openings therein, with the transition section being configured to provide a flexibility which is greater than the first flexibility of the distal end of the proximal section and which flexibility is less than the second flexibility of the proximal end of the distal section; and, (iv) a sleeve bonded to the transition section; and b) an outer tube positioned around the inner tube and forming a lumen between the inner tube and outer tube.
Claim 12
Dependent Claim
127 words
A catheter comprising: (a) an inner tube comprising; (i) a non-perforated proximal section having a distal end with a first flexibility; (ii) a non-perforated distal section having a proximal end with a second flexibility; (iii) a transition section intermediate the proximal section and the distal section, the transition section having one or more openings therein, with the transition section being configured to provide a flexibility which is greater than the first flexibility of the distal end of the proximal section and which flexibility is less than the second flexibility of the proximal end of the distal section; and, (iv) a sleeve bonded to the transition section; and b) an outer tube positioned around the inner tube and forming a lumen between the inner tube and outer tube.
Claim 13
Dependent Claim
11 words
The catheter of claim 9 wherein the transition section is metallic.
Claim 14
Dependent Claim
15 words
The catheter of claim 9 wherein the sleeve is chemically bonded to the transition section.
Claim 15
Dependent Claim
21 words
The catheter of claim 9 wherein the sleeve is plastic and extends into a depth of the one or more openings.
Claim 16
Dependent Claim
124 words
A balloon dilatation catheter comprising: (a) an inner tube comprising (i) a proximal section having a distal end with a first flexibility; (ii) a distal section having a proximal end with a second flexibility; and (iii) a transition section intermediate the proximal section and the distal section, the transition section having one or more openings therein, with the transition section being configured to provide a flexibility which is greater than the first flexibility of the distal end of the proximal section and which flexibility is less than the second flexibility of the proximal end of the distal section; (b) an outer tube positioned around and attached to the inner tube; and (c) a balloon connected to the outer tube distal to the transition section.
Claim 17
Dependent Claim
124 words
A balloon dilatation catheter comprising: (a) an inner tube comprising (i) a proximal section having a distal end with a first flexibility; (ii) a distal section having a proximal end with a second flexibility; and (iii) a transition section intermediate the proximal section and the distal section, the transition section having one or more openings therein, with the transition section being configured to provide a flexibility which is greater than the first flexibility of the distal end of the proximal section and which flexibility is less than the second flexibility of the proximal end of the distal section; (b) an outer tube positioned around and attached to the inner tube; and (c) a balloon connected to the outer tube distal to the transition section.
Claim 18
Dependent Claim
11 words
The catheter of claim 13 wherein the transition section is metallic.
Claim 19
Dependent Claim
15 words
The catheter of claim 14 wherein one or more of the openings have beveled edges.
Claim 20
Dependent Claim
15 words
The catheter of claim 13 wherein one or more of the openings have beveled edges.
Claim 21
Dependent Claim
130 words
A catheter comprising: (a) an inner tube; and (b) an outer tube positioned around the inner tube and forming a lumen between the outer tube and inner tube, the outer tube comprising: (i) a non-perforated proximal section having a distal end with a first flexibility; (ii) a non-perforated distal section having a proximal end with a second flexibility; (iii) a transition section intermediate the proximal section and the distal section, the transition section having one or more openings therein, with the transition section being configured to provide a flexibility which is greater than the first flexibility of the distal end of, the proximal section and which flexibility is less than the second flexibility of the proximal end of the distal section; and, (iv) a sleeve bonded to the transition section.
Claim 22
Dependent Claim
130 words
A catheter comprising: (a) an inner tube; and (b) an outer tube positioned around the inner tube and forming a lumen between the outer tube and inner tube, the outer tube comprising: (i) a non-perforated proximal section having a distal end with a first flexibility; (ii) a non-perforated distal section having a proximal end with a second flexibility; (iii) a transition section intermediate the proximal section and the distal section, the transition section having one or more openings therein, with the transition section being configured to provide a flexibility which is greater than the first flexibility of the distal end of, the proximal section and which flexibility is less than the second flexibility of the proximal end of the distal section; and, (iv) a sleeve bonded to the transition section.
Claim 23
Dependent Claim
11 words
The catheter of claim 17 wherein the transition section is metallic.
Claim 24
Dependent Claim
15 words
The catheter of claim 17 wherein the sleeve is chemically bonded to the transition section.
Claim 25
Dependent Claim
21 words
The catheter of claim 17 wherein the sleeve is plastic and extends into a depth of the one or more openings.
Claim 26
Dependent Claim
140 words
A balloon dilatation catheter comprising: (a) an inner tube; and (b) an outer tube positioned around the inner tube and forming a lumen between the outer tube and inner tube, the outer tube comprising: (i) a proximal section having a distal end with a first flexibility; (ii) a distal section having a proximal end with a second flexibility; and, (iii) a transition section intermediate the proximal section and the distal section, the transition section having one or more openings therein, with the transition section being configured to provide a flexibility which is greater than the first flexibility of the distal end of the proximal section and which flexibility is less than the second flexibility of the proximal end of the distal section; and (b) a balloon connected to the outer tube distal to the transition section of the outer tube.
Claim 27
Dependent Claim
140 words
A balloon dilatation catheter comprising: (a) an inner tube; and (b) an outer tube positioned around the inner tube and forming a lumen between the outer tube and inner tube, the outer tube comprising: (i) a proximal section having a distal end with a first flexibility; (ii) a distal section having a proximal end with a second flexibility; and, (iii) a transition section intermediate the proximal section and the distal section, the transition section having one or more openings therein, with the transition section being configured to provide a flexibility which is greater than the first flexibility of the distal end of the proximal section and which flexibility is less than the second flexibility of the proximal end of the distal section; and (b) a balloon connected to the outer tube distal to the transition section of the outer tube.
Claim 28
Dependent Claim
11 words
The catheter of claim 21 wherein the transition section is metallic.
References Cited (Backward Citations)
US4323071B1
Cited
US4323071A
Cited
US4547193A
Cited
US5104376A
Cited
US4917088A
Cited
US5242394A
Cited
US4921483A
Cited
US4646742A
Cited
US4739768A
Cited
US4739768B1
Cited
US4739768B2
Cited
US4976720A
Cited
US5250069A
Cited
US4906241A
Cited
US4943278A
Cited
US4838268A
Cited
US4940062A
Cited
US4998917A
Cited
US4998923A
Cited
EP0376132A1
Cited
US5035705A
Cited
US5085636A
Cited
EP0380873B1
Cited
US4946466A
Cited
US4960410A
Cited
US5047045A
Cited
US5032113A
Cited
EP0405831B1
Cited
US4976690A
Cited
US5256144A
Cited
US5100381A
Cited
WO1991008014A1
Cited
US5156595A
Cited
US5322505A
Cited
DE4104092A1
Cited
US5176637A
Cited
US5180376A
Cited
US5156594A
Cited
US5217482A
Cited
US5195989A
Cited
US5322064A
Cited
EP0513818A1
Cited
US5154725A
Cited
WO1993002733A1
Cited
WO1993004722A2
Cited
US5195978A
Cited
WO1993015786A1
Cited
US5195971A
Cited
WO1993020882A1
Cited
US5437288A
Cited
EP0608853A2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-02-25 | 2000-08-26 | 2001-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-02-25 | 2004-08-26 | 2005-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-02-25 | 2008-08-26 | 2009-02-25 | $7700.00 | Window Closed / Lapsed |