CA2516758A1 - Elongated intracorporal medical device - Google Patents

Elongated intracorporal medical device Download PDF

Info

Publication number
CA2516758A1
CA2516758A1 CA002516758A CA2516758A CA2516758A1 CA 2516758 A1 CA2516758 A1 CA 2516758A1 CA 002516758 A CA002516758 A CA 002516758A CA 2516758 A CA2516758 A CA 2516758A CA 2516758 A1 CA2516758 A1 CA 2516758A1
Authority
CA
Canada
Prior art keywords
coil
medical device
coil member
elongated shaft
region
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
Application number
CA002516758A
Other languages
French (fr)
Other versions
CA2516758C (en
Inventor
Brice L. Shireman
Brian R. Reynolds
Dave B. Johnson
Alan D. Eskuri
Virgil F. Voeller
Jeffrey Allan Miller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Boston Scientific Ltd Barbados
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2516758A1 publication Critical patent/CA2516758A1/en
Application granted granted Critical
Publication of CA2516758C publication Critical patent/CA2516758C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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

Abstract

Alternative designs, materials and manufacturing methods for guidewires. Some embodiments pertain to a composite guidewire having proximal and distal section, and a connector adapted and configured for permanently joining the proximal section to the distal section. In some embodiments, at least one of the sections is made of a linear-elastic nickel-titanium alloy. Several alternative guidewire tip constructions and/or designs including methods and techniques of construction are also disclosed.

Claims (30)

1. A medical device comprising:
an elongated shaft;
a first coil member connected to the elongated shaft; and a second coil member connected to the first coil, wherein the second coil is free of direct attachment to the elongated shaft.
2. A medical device comprising:
an elongated shaft;
a first coil member connected to the elongated shaft; and a second coil member; and means for connecting the second coil member to the first coil member.
3. The medical device of claim 1 or 2, wherein the second coil member includes a proximal portion and a distal portion, and the second coil is connected to the first coil member such that the distal portion free from attachment to the first coil.
4. The medical device of claim 1, 2, or 3, wherein the elongated shaft includes a proximal end and a distal end, and the first coil member is connected to the elongated shaft such that it extends distally beyond the distal end of the shaft.
5. The medical device of any of claims 1-4, wherein the first coil is an outer coil, and the second coil is an inner coil.
6. The medical device of any of claims 1-5, wherein the first coil is made of a first material and the second coil is made of a second material, and wherein the second material is more radiopaque than the first material.
7. The medical device of any of claims 1-6, wherein the first and second coil members are constructed of a common coiled filament.
8. The medical device of any of claims 1-7, wherein the second coil is connected to the first coil by LASER welding.
9. The medical device of any of claims 1-8, wherein the second coil is connected to the first coil by soldering or brazing, and the solder or brazing material is heated using LASER energy.
10. The medical device of any of claims 1-9, wherein the first coil member defines a lumen, and the second coil member is disposed at least partially within the lumen of the first coil member.
11. The medical device of any of claims 1-10, wherein:
the elongated shaft includes a proximal region having a first outer diameter and a distal region having a second outer diameter that is smaller than the first outer diameter;
the first coil member is connected to the elongated shaft at the proximal region and extends from the proximal region over the distal region, the first coil member having an inner diameter that is greater than the second outer diameter; and the second coil member is disposed about the distal region, and extends within and is connected to the first coil member.
12. The medical device of any of claims 1-11, wherein the second coil member is free of direct attachment to any other structure within the medical device other than the first coil member.
13. The medical device of any of claims 1-12, wherein the medical device is a guidewire.
14. The medical device of any of claims 1-13, wherein the elongated shaft comprises a solid core wire.
15. The medical device of any of claims 1-14, further comprising an attachment member disposed between and connected to the first and second coil members.
16. The medical device of claim 15, wherein the attachment member is an attachment ring disposed between the first and second coil members.
17. The medical device of any of claims 1-16, wherein the second coil member is connected to the first coil member through a circumferentially shaped connection region.
18. The medical device of any of claims 1-17, wherein the second coil member is connected to the first coil member through a first connection point, wherein the connection point is not circumferentially shaped.
19. The medical device of any of claims 1-18, wherein the first coil member has a first region having a first diameter and a second region having a second diameter, wherein the second diameter is less than the first diameter.
20. The medical device of any of claims 1-19, wherein the second coil is connected to the first coil at a proximal end of the second coil.
21. The medical device of any of claims 1-20, wherein the second coil has an end portion free from attachment to the first coil.
22. The medical device of any of claims 1-21, wherein the second coil has an end portion, and the end portion is slidingly disposed within the first coil.
23. The medical device of any of claims 1-22, wherein the first coil member comprises MP35-N or a nickel-titanium alloy, and the second coil member comprises a radiopaque material.
24. A method of making the medical device of any of claims 1-22, the method comprising:
providing a first coil member and a second coil member;
attaching the second coil member to the first coil member;
providing the elongated shaft; and attaching the first coil member to the elongated shaft such that the second coil is free of direct attachment to the shaft.
25. A guidewire comprising:
an elongated shaft including a proximal section and a distal section;
a coil member connected to the elongated shaft and being disposed over at least a portion of the distal section, the coil member comprising MP35-N, or a nickel titanium alloy.
26. The guidewire of claim 25, wherein the coil member comprises MP35-N.
27. The guidewire of claim 25, wherein the coil member comprises a linear elastic nickel titanium alloy.
28. The guidewire of claim 25, wherein the coil member comprises a super elastic nickel titanium alloy.
29. The guidewire of any of claims 25-28, wherein the coil includes adjacent coil windings that have been pre-tensioned along at least a portion of the length of the coil.
30. A coil construction for use in a medical device, the coil construction comprising:
a first coil member adapted and configured for connection to the medical device; and a second coil member connected to the first coil;
wherein, the coil construction is configured such that when the first coil member is connected to the medical device, the second coil member is free of direct attachment to any other structure within the medical device.
CA2516758A 2003-02-26 2004-02-26 Elongated intracorporal medical device Expired - Fee Related CA2516758C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/376,068 US7182735B2 (en) 2003-02-26 2003-02-26 Elongated intracorporal medical device
US10/376,068 2003-02-26
PCT/US2004/007684 WO2004075968A1 (en) 2003-02-26 2004-02-26 Elongated intracorporal medical device

Publications (2)

Publication Number Publication Date
CA2516758A1 true CA2516758A1 (en) 2004-09-10
CA2516758C CA2516758C (en) 2012-08-28

Family

ID=32869079

Family Applications (3)

Application Number Title Priority Date Filing Date
CA2516755A Expired - Fee Related CA2516755C (en) 2003-02-26 2004-02-26 Elongated intracorporal medical device
CA2516758A Expired - Fee Related CA2516758C (en) 2003-02-26 2004-02-26 Elongated intracorporal medical device
CA002516756A Abandoned CA2516756A1 (en) 2003-02-26 2004-02-26 Elongated intracorporal medical device

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CA2516755A Expired - Fee Related CA2516755C (en) 2003-02-26 2004-02-26 Elongated intracorporal medical device

Family Applications After (1)

Application Number Title Priority Date Filing Date
CA002516756A Abandoned CA2516756A1 (en) 2003-02-26 2004-02-26 Elongated intracorporal medical device

Country Status (8)

Country Link
US (4) US7182735B2 (en)
EP (3) EP1603624B1 (en)
JP (3) JP2006519068A (en)
AT (3) ATE477013T1 (en)
CA (3) CA2516755C (en)
DE (2) DE602004028581D1 (en)
ES (1) ES2346968T3 (en)
WO (3) WO2004075967A1 (en)

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CA2516755A1 (en) 2004-09-10
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WO2004075963A1 (en) 2004-09-10
ATE466615T1 (en) 2010-05-15
US7182735B2 (en) 2007-02-27
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US8222566B2 (en) 2012-07-17
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US20040167443A1 (en) 2004-08-26
CA2516758C (en) 2012-08-28
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US20040167442A1 (en) 2004-08-26
EP1603624B1 (en) 2011-06-15

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