CA2536899A1 - Medical device coil - Google Patents
Medical device coil Download PDFInfo
- Publication number
- CA2536899A1 CA2536899A1 CA002536899A CA2536899A CA2536899A1 CA 2536899 A1 CA2536899 A1 CA 2536899A1 CA 002536899 A CA002536899 A CA 002536899A CA 2536899 A CA2536899 A CA 2536899A CA 2536899 A1 CA2536899 A1 CA 2536899A1
- Authority
- CA
- Canada
- Prior art keywords
- discrete
- coil
- medical device
- affixation
- windings
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/09—Guide wires
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/09—Guide wires
- A61M2025/09058—Basic structures of guide wires
- A61M2025/09083—Basic structures of guide wires having a coil around a core
- A61M2025/09091—Basic structures of guide wires having a coil around a core where a sheath surrounds the coil at the distal part
Abstract
An intracorporal device includes a helically wound coil (110) having a plurality of windings forming a coil length (L) and a thermoplastic polymer sleeve (101) circumferentially disposed about a portion of the coil length. A
plurality of discrete affixation points (120) are disposed along the coil length. Each discrete affixation point fixes the thermoplastic polymer sleeve to two or more coil windings (105).
plurality of discrete affixation points (120) are disposed along the coil length. Each discrete affixation point fixes the thermoplastic polymer sleeve to two or more coil windings (105).
Claims (38)
1. ~An intracorporal medical device comprising:
a) ~a helically wound coil having a plurality of windings forming a coil length;
b) ~a thermoplastic polymer sleeve disposed about a portion of the coil length; and c) ~a plurality of discrete affixation points disposed along the coil length, wherein each discrete affixation point fixes the thermoplastic polymer sleeve to two or more coil windings.
a) ~a helically wound coil having a plurality of windings forming a coil length;
b) ~a thermoplastic polymer sleeve disposed about a portion of the coil length; and c) ~a plurality of discrete affixation points disposed along the coil length, wherein each discrete affixation point fixes the thermoplastic polymer sleeve to two or more coil windings.
2. ~The intracorporal medical device according to claim 1 wherein the helically wound coil has an outer perimeter, wherein the thermoplastic polymer sleeve is circumferentially disposed about a portion of the coil length and wherein the plurality of discrete affixation points are disposed on only a portion of the outer perimeter of the coil.
3. ~The intracorporal medical device according to claim 1 or 2, further comprising an elongate shaft, wherein the coil is disposed about a portion of the elongate shaft and wherein the thermoplastic polymer sleeve is circumferentially disposed about a portion of the coil length.
4. ~The intracorporal medical device according to claim 1, 2, or 3, wherein the elongate shaft has a proximal end and an opposing distal end and the coil is disposed about a portion of the distal end.
5. ~The intracorporal medical device according to any of claims 1-4, wherein the plurality of discrete affixation points includes 10 or more discrete affixation points disposed along the coil length.
6. ~The intracorporal medical device according to any of claims 1-5, wherein the plurality of discrete affixation points form a non-uniform pattern along the coil length.
7. ~The intracorporal medical device according to any of claims 1-6, wherein the plurality of discrete affixation points has a density of discrete affixation points per unit length of coil that decreases along the coil length.
8. ~The intracorporal medical device according to any of claims 1-7, wherein the coil has a proximal end and a distal end and where the density of discrete affixation points per unit length decreases from the proximal end to the distal end.
9. ~The intracorporal medical device according to any of claims 1-8, wherein the plurality of discrete affixation points form a uniform pattern along the coil length.
10. ~The intracorporal medical device according to any of claims 1-9, wherein each discrete affixation point fixes in the range of 3 to 10 coil windings, or optionally, in the range of 10 to 20 coil windings, to the thermoplastic sleeve.
11. ~The intracorporal medical device according to claims any of claims 1-10, wherein each discrete affixation point is a discrete element aligned orthogonal to the windings.
12. ~The intracorporal medical device according to any of claims 1-11, wherein each discrete affixation point is an element having a width in the range of about 0.1 to 0.5 mm and a length in the range of about 0.1 to 0.3 mm.
13. ~The intracorporal medical device according to any of claims 1-12, wherein the windings of the coil comprise round wire.
14. ~The intracorporal medical device according to any of claims 1-13, wherein the windings of the coil can be wound so that the windings are optionally in contact with adjacent windings, or are optionally wound so that the windings are not in contact with adjacent windings, or the coil can optionally include portions where the windings are in contact with adjacent windings and portions where the windings are not in contact with adjacent windings.
15. ~The intracorporal medical device according to any of claims 1-14, wherein the helically wound coil has an outer perimeter and wherein the plurality of discrete affixation points are disposed about only a portion of the outer perimeter of the coil.
16. ~The intracorporal medical device according to any of claims 1-15, further including a distal atraumatic tip.
17. ~The intracorporal medical device according to any of claims 1-16, wherein at least a portion of the elongate shaft is optionally hollow, or wherein at least a portion of the elongate shaft is optionally solid.
18. ~The intracorporal medical device according to any of claims 1-17, wherein the elongate shaft has a round cross-section along at least a portion of its length.
19. ~The intracorporal medical device according to any of claims 1-18, wherein the elongate shaft tapers from the proximal end to the distal end, and optionally, the tapering can occur evenly or in a step-wise fashion.
20. ~The intracorporal medical device according to any of claims 1-19, wherein the coil has an inside surface and the elongate shaft has an outside surface and wherein there is an open space between at least a portion of the inside surface of the coil and the outside surface of the elongate shaft.
21. ~The intracorporal medical device according to any of claims 1-20, wherein the discrete affixation points are formed by preferentially heating discrete points of the thermoplastic polymer sleeve sufficient to allow at least part of the polymer at those discrete points to flow and affix to two or more windings of the coil.
22. ~The intracorporal medical device according to any of claims 1-21, wherein the intracorporal medical device is an intracorporal guidewire.
23. ~The intracorporal medical device according to any of claims 1-22, wherein the helically wound coil has a longitudinal axis and wherein the plurality of discrete affixation points are disposed such that they extend only part way around the longitudinal axis of the coil.
24. ~A process for forming an intracorporal medical device, the process comprising;
a) ~disposing a thermoplastic polymer sleeve circumferentially about a portion of a helically wound coil having a plurality of windings forming a coil length; and b) ~forming a plurality of discrete affixation points along the coil length, wherein each discrete affixation point fixes the thermoplastic polymer sleeve to two or more coil windings.
a) ~disposing a thermoplastic polymer sleeve circumferentially about a portion of a helically wound coil having a plurality of windings forming a coil length; and b) ~forming a plurality of discrete affixation points along the coil length, wherein each discrete affixation point fixes the thermoplastic polymer sleeve to two or more coil windings.
25. ~The process according to claim 24, wherein the forming a plurality of discrete affixation points comprises using thermal energy to form the discrete affixation points.
26. ~The process according to claim 24 or 25, wherein the forming a plurality of discrete affixation points comprises laser welding the thermoplastic polymer sleeve to two or more coil windings to form the discrete affixation points.
27. ~The process according to any of claims 24-26, wherein the forming a plurality of discrete affixation points comprises laser diode welding the thermoplastic polymer sleeve to two or more coil windings to form the discrete affixation points.
28. ~The process according to any of claims 24-27, wherein the forming a plurality of discrete affixation points includes forming 10 or more discrete affixation points disposed along the coil length.
29. ~The process according to any of claims 24-28, wherein the forming a plurality of discrete affixation points includes forming a non-uniform pattern of discrete affixation points along the coil length.
30. ~The process according to any of claims 24-29, wherein the forming a plurality of discrete affixation points includes forming a plurality of discrete affixation points having a density of discrete affixation points per unit coil length that decreases along the coil length.
31. ~The process according to any of claims 24-30, wherein the forming a plurality of discrete affixation points includes forming a uniform pattern of discrete affixation points along the coil length.
32. ~The process according to any of claims 24-31, wherein at least some of each of the plurality of discrete affixation points fixes the thermoplastic sleeve to 3 to 10, or optionally, 10 to 20 coil windings.
33. ~The process according to any of claims 24-32, wherein the forming a plurality of discrete affixation points includes forming discrete affixation points aligned orthogonal to the windings.
34. ~The process according to any of claims 24-33, wherein the forming a plurality of discrete affixation points includes forming discrete affixation elements having a width in the range of about 0.1 to 0.5 mm and a length in the range of about 0.1 to 0.3 mm.
35. ~The process according to any of claims 24-34, wherein the forming a plurality of discrete affixation points includes forming discrete affixation elements by preferentially heating the thermoplastic polymeric sleeve at discrete points sufficient to flow at least part of the thermoplastic polymer such that attachment is made by the thermoplastic polymer to two or more windings at each discrete affixation point.~
36. ~The process according to any of claims 24-35, wherein the intracorporal medical device comprises a guidewire.
37. ~The process according to any of claims 24-36, wherein the helically wound coil has a longitudinal axis, and wherein the forming a plurality of discrete affixation points comprises forming the plurality of discrete affixation points such that they extend only part way around the longitudinal axis of the coil.
38. ~An intracorporal medical device produced by the process of any of claims 24-37.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/656,630 US7540845B2 (en) | 2003-09-05 | 2003-09-05 | Medical device coil |
| US10/656,630 | 2003-09-05 | ||
| PCT/US2004/028791 WO2005023357A2 (en) | 2003-09-05 | 2004-09-03 | Medical device coil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2536899A1 true CA2536899A1 (en) | 2005-03-17 |
| CA2536899C CA2536899C (en) | 2012-05-01 |
Family
ID=34226384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2536899A Expired - Fee Related CA2536899C (en) | 2003-09-05 | 2004-09-03 | Medical device coil |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US7540845B2 (en) |
| EP (1) | EP1667757B1 (en) |
| JP (1) | JP4648320B2 (en) |
| AT (1) | ATE376439T1 (en) |
| CA (1) | CA2536899C (en) |
| DE (1) | DE602004009703T2 (en) |
| ES (1) | ES2293348T3 (en) |
| WO (1) | WO2005023357A2 (en) |
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-
2003
- 2003-09-05 US US10/656,630 patent/US7540845B2/en not_active Expired - Fee Related
-
2004
- 2004-09-03 EP EP04788569A patent/EP1667757B1/en not_active Not-in-force
- 2004-09-03 ES ES04788569T patent/ES2293348T3/en active Active
- 2004-09-03 WO PCT/US2004/028791 patent/WO2005023357A2/en active IP Right Grant
- 2004-09-03 JP JP2006526202A patent/JP4648320B2/en not_active Expired - Fee Related
- 2004-09-03 AT AT04788569T patent/ATE376439T1/en not_active IP Right Cessation
- 2004-09-03 DE DE602004009703T patent/DE602004009703T2/en active Active
- 2004-09-03 CA CA2536899A patent/CA2536899C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| WO2005023357A3 (en) | 2005-05-06 |
| DE602004009703D1 (en) | 2007-12-06 |
| US20050054951A1 (en) | 2005-03-10 |
| DE602004009703T2 (en) | 2008-08-28 |
| JP2007503957A (en) | 2007-03-01 |
| EP1667757A2 (en) | 2006-06-14 |
| ATE376439T1 (en) | 2007-11-15 |
| US7540845B2 (en) | 2009-06-02 |
| CA2536899C (en) | 2012-05-01 |
| ES2293348T3 (en) | 2008-03-16 |
| JP4648320B2 (en) | 2011-03-09 |
| WO2005023357A2 (en) | 2005-03-17 |
| EP1667757B1 (en) | 2007-10-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20160906 |