Patent US5410797A successfully refreshed from Google Patents.
US5410797A
Expired / Lapsed
US
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Method of making a catheter with flexible side port entry
Assignee: Medtronic Inc
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Filing: 1994-02-28
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Granted: 1995-05-02
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Expires: 2014-02-28
Abstract
Abstract An improved balloon catheter is disclosed which is comprised of two jacketed spring coils placed end-to-end and joined by a linking element which contains a lumen communicating between the inflation lumens formed by the two spring coils. A side port entry to a guidewire lumen, which extends through the distal coil to the distal end of the catheter, is located in the transition region formed by the linking element. The linking element may include two polyimide tubes or may be a multilumen insert. The catheter is stiffened by a core wire which is bonded directly to the spring coils. A catheter comprised of a single spring coil with a side port entry in the coil is also disclosed, and a method and apparatus for crimping the coil to create the entry.
Inventors
- 👤 Thomas A. Steinke
- 👤 Leonard F. Briggs
- 👤 Garry E. Rupp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:44
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/104; A61M25/0043; A61M2025/0063; A61M25/01; A61M2025/0183; A61M25/0009; A61M25/0054; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/4984; Y10T29/49842; Y10T29/49844
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
184 words
A method of making a catheter comprising the following steps: selecting a distal tubular member having a longitudinal distal inflation lumen throughout and a longitudinal inner guidewire lumen throughout; selecting a proximal tubular member, the proximal tubular member being formed of a jacketed spring coil and having a longitudinal proximal inflation lumen throughout; placing the proximal and distal tubular members end to end; spacing the ends of the tubular members from each other to create a transition region therebetween; providing a linking element in the transition region, said linking element including a flexible tubes defining an intermediate inflation lumen to communicate between the inflation lumens of the proximal and distal tubular members, so that by varying the characteristics of the tubular members and the linking element, the handling characteristics of the catheter can be controlled; providing a side port entry in the transition region from which the guidewire lumen exits to the catheter exterior; and providing seal surrounding the intermediate inflation lumen and filling the transition region to seal the side port entry from the distal inflation lumen and from the proximal inflation lumen.
Claim 2
Independent Claim
184 words
A method of making a catheter comprising the following steps: selecting a distal tubular member having a longitudinal distal inflation lumen throughout and a longitudinal inner guidewire lumen throughout; selecting a proximal tubular member, the proximal tubular member being formed of a jacketed spring coil and having a longitudinal proximal inflation lumen throughout; placing the proximal and distal tubular members end to end; spacing the ends of the tubular members from each other to create a transition region therebetween; providing a linking element in the transition region, said linking element including a flexible tubes defining an intermediate inflation lumen to communicate between the inflation lumens of the proximal and distal tubular members, so that by varying the characteristics of the tubular members and the linking element, the handling characteristics of the catheter can be controlled; providing a side port entry in the transition region from which the guidewire lumen exits to the catheter exterior; and providing seal surrounding the intermediate inflation lumen and filling the transition region to seal the side port entry from the distal inflation lumen and from the proximal inflation lumen.
Claim 3
Independent Claim
160 words
A method of making a catheter comprising the following steps: selecting a distal tubular member having a longitudinal distal inflation lumen throughout and a longitudinal inner guidewire lumen throughout; selecting a proximal tubular member, the proximal tubular member being formed of a jacketed spring coil and having a longitudinal proximal inflation lumen throughout; placing the proximal and distal tubular members end to end; spacing the ends of the tubular members from each other to create a transition region therebetween; providing a linking element in the transition region, the linking element including first and second flexible tubes defining respective first and second intermediate inflation lumens to communicate between the inflation lumens of the proximal and distal tubular members, so that by varying the characteristics of the tubular members and the linking element, the handling characteristics of the catheter can be controlled; and providing a side port entry in the transition region from which the guidewire lumen exits to the catheter exterior.
Claim 4
Independent Claim
160 words
A method of making a catheter comprising the following steps: selecting a distal tubular member having a longitudinal distal inflation lumen throughout and a longitudinal inner guidewire lumen throughout; selecting a proximal tubular member, the proximal tubular member being formed of a jacketed spring coil and having a longitudinal proximal inflation lumen throughout; placing the proximal and distal tubular members end to end; spacing the ends of the tubular members from each other to create a transition region therebetween; providing a linking element in the transition region, the linking element including first and second flexible tubes defining respective first and second intermediate inflation lumens to communicate between the inflation lumens of the proximal and distal tubular members, so that by varying the characteristics of the tubular members and the linking element, the handling characteristics of the catheter can be controlled; and providing a side port entry in the transition region from which the guidewire lumen exits to the catheter exterior.
Claim 5
Dependent Claim
14 words
The method according to claim 2, wherein the flexible tubes are formed of polyimide.
Claim 6
Independent Claim
97 words
A method of making a catheter comprising the following steps: providing a spring coil shaft defining an inflation lumen, the shaft having a distal end, a proximal end, and a side port entry; providing a balloon located generally at the distal end of the shaft, the balloon having a distal end and a proximal end, the distal end of the balloon being sealed to the inflation lumen; and providing a guidewire lumen extending from the spring coil shaft distal end to the side port entry, said guidewire lumen adapted to receive a guidewire in a sliding fit.
Claim 7
Independent Claim
97 words
A method of making a catheter comprising the following steps: providing a spring coil shaft defining an inflation lumen, the shaft having a distal end, a proximal end, and a side port entry; providing a balloon located generally at the distal end of the shaft, the balloon having a distal end and a proximal end, the distal end of the balloon being sealed to the inflation lumen; and providing a guidewire lumen extending from the spring coil shaft distal end to the side port entry, said guidewire lumen adapted to receive a guidewire in a sliding fit.
Claim 8
Dependent Claim
13 words
The method according to claim 4, wherein the shaft is jacketed with polyethylene.
Claim 9
Dependent Claim
66 words
The method according to claim 4, wherein the step of providing a spring coil shaft comprises providing two spring coils, each spring coil including an inflation lumen throughout, placing the two spring coils end to end with a transition region therebetween, providing a linking element in the transition region, said linking element including a flexible tube, and providing a side port entry in the linking element.
Claim 10
Dependent Claim
23 words
The method according to claim 6, wherein the inflation lumens of the two spring coils are in fluid communication with the flexible tube.
Claim 11
Dependent Claim
32 words
The method according to claim 7, wherein said linking element includes two flexible tubes, both of said flexible tubes being in fluid communication with the inflation lumens of the two spring coils.
Claim 12
Dependent Claim
27 words
The method according to claim 6, further comprising providing a core wire extending through the inflation lumen of the shaft, and affixed to the two spring coils.
Claim 13
Dependent Claim
41 words
The method according to claim 4, further comprising providing a first flexible tube sealed into the spring coil shaft adjacent the side port entry, said first flexible tube being in fluid communication with the inflation lumen in the spring coil shaft.
Claim 14
Dependent Claim
42 words
The method according to claim 10, further comprising providing a second flexible tube sealed into the spring coil shaft parallel to the first flexible tube, said second flexible tube being in fluid communication with the inflation lumen in the spring coil shaft.
Claim 15
Dependent Claim
14 words
The method according to claim 11, wherein the flexible tubes are formed of polyimide.
Claim 16
Independent Claim
165 words
A method of making a catheter comprising the following steps: providing a distal tubular member having a longitudinal distal inflation lumen throughout and a longitudinal guidewire throughout; providing a proximal tubular member, the proximal tubular member being formed of a jacketed spring coil and having a longitudinal proximal inflation lumen throughout; placing the proximal and distal tubular members end to end; spacing the ends of the tubular members from each other to create a transition region therebetween; providing a linking element in the transition region, said linking element including a flexible tube defining an intermediate inflation lumen to communicate between the inflation lumens of the proximal and distal tubular members, so that by varying the characteristics of the tubular members and the linking element, the handling characteristics of the catheter can be controlled; providing a side port entry in the transition region from which the guidewire lumen exits to the catheter exterior; and providing a core wire affixed to the distal and proximal tubular members.
Claim 17
Independent Claim
165 words
A method of making a catheter comprising the following steps: providing a distal tubular member having a longitudinal distal inflation lumen throughout and a longitudinal guidewire throughout; providing a proximal tubular member, the proximal tubular member being formed of a jacketed spring coil and having a longitudinal proximal inflation lumen throughout; placing the proximal and distal tubular members end to end; spacing the ends of the tubular members from each other to create a transition region therebetween; providing a linking element in the transition region, said linking element including a flexible tube defining an intermediate inflation lumen to communicate between the inflation lumens of the proximal and distal tubular members, so that by varying the characteristics of the tubular members and the linking element, the handling characteristics of the catheter can be controlled; providing a side port entry in the transition region from which the guidewire lumen exits to the catheter exterior; and providing a core wire affixed to the distal and proximal tubular members.
References Cited (Backward Citations)
WO1986000132A1
Cited
US4976689A
Cited
US4944740A
Cited
US4648384A
Cited
US4762129A
Cited
US4762129B1
Cited
US4804358A
Cited
US4594074A
Cited
US4723936A
Cited
US4790315A
Cited
WO1988003389A1
Cited
US4771777A
Cited
US4748982A
Cited
US4988356A
Cited
US4832028A
Cited
US4927413A
Cited
US4892519A
Cited
US4943278A
Cited
US4944745A
Cited
US4838268A
Cited
US4909252A
Cited
US4877031A
Cited
US4917666A
Cited
EP0380873B1
Cited
US5000753A
Cited
US5040548A
Cited
US5061273A
Cited
EP0420486A1
Cited
WO1991008013A1
Cited
US5156594A
Cited
US5154725A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-05-01 | 1998-10-31 | 1999-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-05-01 | 2002-10-31 | 2003-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-05-01 | 2006-10-31 | 2007-05-02 | $7700.00 | Window Closed / Lapsed |