US6503353B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for making a catheter
Assignee: Boston Scientific Scimed Inc
•
Filing: 1999-11-16
•
Granted: 2003-01-07
•
Expires: 2019-11-16
Abstract
Abstract An intravascular catheter ( 10,110 ) having an elongated tubular body with a proximal portion, a distal portion and a lumen extending therebetween. The tubular body is formed with polymeric materials, preferably containing no radiopaque filler, and metallic reinforcing braiding ( 22,130 ) configured to provide the catheter ( 10,110 ) with radiopaque properties and/or kink resistance.
Inventors
- 👤 Alex A. Peterson
- 👤 John B. Logan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:18
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/0009; A61M25/0012; A61M25/0043; A61M25/005
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
125 words
A process for making an intravascular catheter comprising: disposing a first polymeric tube within a reinforcing means to form a first assembly; disposing the first assembly within at least two tubes formed of polymeric material which is different than a first polymeric material of the first polymeric tube, the at least two tubes configured in abutting relation to each other, to form a second assembly; slitting all but one of the at least two polymeric tubes of the second assembly axially along their lengths; disposing the second assembly within a heat shrink tube to form a third assembly; and heating the third assembly to at least a selected temperature for a predetermined time, followed by cooling the third assembly and removing the heat shrink tube.
Claim 2
Dependent Claim
125 words
A process for making an intravascular catheter comprising: disposing a first polymeric tube within a reinforcing means to form a first assembly; disposing the first assembly within at least two tubes formed of polymeric material which is different than a first polymeric material of the first polymeric tube, the at least two tubes configured in abutting relation to each other, to form a second assembly; slitting all but one of the at least two polymeric tubes of the second assembly axially along their lengths; disposing the second assembly within a heat shrink tube to form a third assembly; and heating the third assembly to at least a selected temperature for a predetermined time, followed by cooling the third assembly and removing the heat shrink tube.
Claim 3
Dependent Claim
66 words
The process of claim 1 , wherein the step of disposing the second assembly within a heat shrink tube to form a third assembly comprises the steps of: sliding a length of the heat shrink tube completely over the second assembly; and heating the heat shrink tube at both ends and below an at least one tube butt joint formed by the at least two tubes.
Claim 4
Dependent Claim
39 words
The process of claim 1 , wherein the at least two tubes are selected to have a thickness that will totally embed the reinforcing means such that the reinforcing means will not protrude beyond the at least two tubes.
Claim 5
Dependent Claim
20 words
The process of claim 1 , wherein the at least two tubes formed of polymeric material are of different durometer.
Claim 6
Dependent Claim
51 words
The process of claim 4 , wherein the at least two tubes that the first assembly is disposed within are of durometers such that a layer made up of the at least two tubes gradually becomes softer from a proximal to a distal end of a distal portion of the catheter.
Claim 7
Dependent Claim
22 words
The process of claim 1 , further comprising the additional step of welding a soft distal tip tube to the third assembly.
Claim 8
Dependent Claim
37 words
The process of claim 6 , further comprising the additional steps of: mounting the catheter onto a forming wire; and heating the catheter in a forming oven at least at a selected temperature for a predetermined time.
Claim 9
Dependent Claim
62 words
The process of claim 7 , further comprising the additional steps of: sliding a strain relief member onto the proximal end of the catheter; applying adhesive around the proximal end of the catheter; placing the proximal end of the catheter into a hub member; applying adhesive to the catheter immediately adjacent the hub; and placing the strain relief member adjacent the hub.
Claim 10
Dependent Claim
19 words
The process of claim 8 , wherein the strain relief placed over the catheter shaft comprises an elastomeric sleeve.
References Cited (Backward Citations)
US4324262A
Cited
JPS578239A
Cited
US4563181A
Cited
US4531943A
Cited
US4923470A
Cited
US4646742A
Cited
US4994032A
Cited
US4898591A
Cited
US4998923A
Cited
US5176661A
Cited
US5441489A
Cited
US5035694A
Cited
US5312356A
Cited
US5248305A
Cited
US5256144A
Cited
US5180376A
Cited
JPH0418378A
Cited
US5569220A
Cited
US5234416A
Cited
US5221270A
Cited
EP0520692A1
Cited
US5573520A
Cited
WO1993008986A1
Cited
US5387199A
Cited
US5342383A
Cited
US5725570A
Cited
US5201757A
Cited
WO1993020881A1
Cited
US5533987A
Cited
US5451209A
Cited
US5357955A
Cited
US5702365A
Cited
US5514236A
Cited
US5538513A
Cited
JPH06154334A
Cited
US5522832A
Cited
US5531719A
Cited
US5527325A
Cited
US5674208A
Cited
WO1995013110A1
Cited
US5860963A
Cited
US5911715A
Cited
US5496291A
Cited
US5403292A
Cited
US5725513A
Cited
US5599325A
Cited
US5569200A
Cited
US5569221A
Cited
WO1996001664A1
Cited
WO1996003163A1
Cited
US5565523A
Cited
JPH0871157A
Cited
US5695468A
Cited
US5573522A
Cited
US5545151A
Cited
US5728063A
Cited
US5792124A
Cited
US5741333A
Cited
US5658263A
Cited
US6103037A
Cited
WO1997037713A1
Cited
US5836926A
Cited
US5755704A
Cited
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 |