CA2348073A1 - Catheter having improved bonding region - Google Patents

Catheter having improved bonding region Download PDF

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Publication number
CA2348073A1
CA2348073A1 CA002348073A CA2348073A CA2348073A1 CA 2348073 A1 CA2348073 A1 CA 2348073A1 CA 002348073 A CA002348073 A CA 002348073A CA 2348073 A CA2348073 A CA 2348073A CA 2348073 A1 CA2348073 A1 CA 2348073A1
Authority
CA
Canada
Prior art keywords
tube
recited
catheter shaft
layer
outside
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
CA002348073A
Other languages
French (fr)
Other versions
CA2348073C (en
Inventor
Timothy M. Stivland
Elias A. Khoury
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
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Individual
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Filing date
Publication date
Family has litigation
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Application filed by Individual filed Critical Individual
Publication of CA2348073A1 publication Critical patent/CA2348073A1/en
Application granted granted Critical
Publication of CA2348073C publication Critical patent/CA2348073C/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
    • A61M25/10—Balloon catheters
    • A61M25/104—Balloon catheters used for angioplasty
    • 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
    • A61M25/0043—Catheters; Hollow probes characterised by structural features
    • A61M2025/0063—Catheters; Hollow probes characterised by structural features having means, e.g. stylets, mandrils, rods or wires to reinforce or adjust temporarily the stiffness, column strength or pushability of catheters which are already inserted into the human body
    • 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
    • A61M25/0009—Making of catheters or other medical or surgical tubes
    • 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
    • A61M25/0043—Catheters; Hollow probes characterised by structural features
    • A61M25/005—Catheters; Hollow probes characterised by structural features with embedded materials for reinforcement, e.g. wires, coils, braids
    • A61M25/0052—Localized reinforcement, e.g. where only a specific part of the catheter is reinforced, for rapid exchange guidewire port

Abstract

A catheter having a flexible outer tube and a lubricious inner tube bonded within the flexible outer tube. One catheter has a distal outer tube formed of a substantial portion of a first, flexible material, an inner tube having a lubricious inside wall surface formed of a second, lubricious material, and an outer tube wall surface compatible with heat bonding the inner tube outside wall surface to the outer tube wall surface. A preferred flexible material is polyether block amide (PEBA), and a preferred lubricious material is polyethylene. One catheter utilizing the invention includes a flexible distal outer tube having an orifice through the tube wall and an inner tube inserted through the orifice having a lubricious inner layer surrounded by a tie-layer, surrounded in turn by the same flexible material forming the outer tube. One catheter has a PEBA outer tube heat bonded to a tri-layer inner guide wire tube formed of a polyethylene inner layer, a PEBA
outer layer, and a PLEXAR® tie-layer disposed between the inner and outer layers.

Claims (48)

1. A catheter shaft comprising:
a first tube including a lumen, an inside wall surface, and an outside wall surface, said first tube having an orifice in a proximal portion of said first tube;
a second tube inserted through, and extending distally from, said orifice, said second tube having a length, a lumen therethrough, a proximal portion, an inside wall surface and an outside wall surface; and a bonding region bonding said second tube outside wall surface to said first tube wall surface, said second tube inside wall surface being formed of a second, lubricious material for a majority of said second tube length, said first tube wall having a layer of a first, flexible material extending for a majority of said first tube length, said first material being different from said second material.
2. A catheter shaft as recited in claim 1, wherein said bonding region is proximate said orifice.
3. A catheter shaft as recited in claim 1, wherein said bonding region includes bonding between said first tube outside surface and said second tube outside surface proximal of said orifice and said bonding region includes bonding between said first tube inside surface and said second tube outside surface distal of said orifice.
4. A catheter shaft as recited in claim 1, wherein said second tube inside and outside wall surfaces are farmed of said second material.
5. A catheter shaft as recited in claim 4, wherein said second tube wall is formed of substantially said second material therethrough.
6. A catheter shaft as recited in claim 5, wherein said first tube inside surface is formed of said second material proximate said bonding region.
7. A catheter shaft as recited in claim 6, wherein said first tube has said second material disposed over most of said first tube inside surface proximate said bonding region and distal of said bonding region.
8. A catheter shaft as recited in claim 7, wherein said first tube includes said second material as an inside layer, said first material as an outside layer, and a tie-layer disposed between said inside and outside layers.
9. A catheter shaft as recited in claim 6, wherein said second tube includes polyethylene, said first tube includes an inside layer of polyethylene, an outside layer of PEBA, and a tie-layer disposed between said inside and outside layers.
10. A catheter shaft as recited in claim 6, wherein said first tube has said inside surface formed of said second material proximate said bonding region and has said inside surface formed of said first material distal of said bonding region.
11. A catheter shaft as recited in claim 10, further comprising a transition tie-layer disposed between said first and second materials.
12. A catheter shaft as recited in claim 11, wherein said second tube includes polyethylene and said first tube includes polyethylene proximate said bonding region and said first tube is formed of PEBA distal of said tie-layer.
13. A catheter shaft as recited in claim 1, wherein said first tube inside surface includes said first material.
14. A catheter shaft as recited in claim 13, wherein said first tube inside and outside surfaces are formed of said first material.
15. A catheter shaft as recited in claim 14, wherein said first tube is formed of said first material proximate said bonding region and distal of said bonding region.
16. A catheter shaft as recited in claim 15, wherein said second tube has a proximal portion proximate said bonding region having an outside surface formed of said first material.
17. A catheter shaft as recited in claim 15, wherein said second tube is formed of said first material in said proximal portion and formed of said second material distal of said proximal portion and has a transition tie-layer therebetween.
18. A catheter shaft as recited in claim 17, wherein said first material includes PEBA and said second material includes polyethylene.
19. A catheter shaft as recited in claim 15, wherein said second tube is formed of said second material, said second tube proximal portion includes a tie-layer disposed over said second material and an outer layer of said first material disposed over said tie-layer.
20. A catheter shaft as recited in claim 19, wherein said first material includes PEBA and said second material includes polyethylene.
21. A catheter shaft as recited in claim 15, wherein said second tube has said inside layer formed of said second material, a tie-layer disposed over said inside layer, and an outside layer formed of said first material disposed over said tie-layer.
22. A catheter shaft as recited in claim 21, wherein said first material includes PEBA and said second material includes polyethylene.
23. A catheter shaft as recited in claim 15, wherein said second tube proximal portion is formed of said first material and said second tube distal of said proximal portion is bonded to said proximal portion and has an inside layer formed of said second material, a tie-layer disposed over said inside layer, and an outer layer formed of said second material disposed over said tie-layer.
24. A catheter shaft as recited in claim 23, wherein said first material includes PEBA and said second material includes polyethylene
25. A catheter shaft as recited in claim 15, wherein said second tube proximal and distal portions have an inside layer formed of said second material and an outside tie-layer disposed over said inside layer.
26. A catheter shaft as recited in claim 25, wherein said first material includes PEBA and said second material includes polyethylene, wherein said second tube outside tie-layer wall surface is heat bonded to said first tube inside wall PEBA surface proximate said orifice.
27. A catheter shaft comprising:

a first tube including a lumen, an inside wall surface, and an outside wall surface;
a second tube disposed at least partially within said first tube, said second tube having a length, a lumen therethrough, an inside wall surface and an outside wall surface; and a bonding region bonding said second tube outside wall surface to said first tube wall surface, said second tube inside wall surface being formed of a second material for a majority of said second tube length, said first tube wall having a layer of a first material extending for a majority of said first tube length, said first material being different from said second.
28. A catheter shaft as recited in claim 27, wherein said first material and said second material form weak bonds when heat bonded to each other.
29. A catheter shaft as recited in claim 28, wherein said bonding region includes bonding between said first tube inside surface and said second tube outside surface.
30. A catheter shaft as recited in claim 27, wherein said bonding region includes bonding between said first tube inside surface and said second tube outside surface.
31. A catheter shaft as recited in claim 27, wherein said second tube wall is formed of substantially said second material therethrough.
32. A catheter shaft as recited in claim 31, wherein said first tube inside surface is formed of said second material proximate said bonding region.
33. A catheter shaft as recited in claim 32, wherein said first tube has said second material disposed over most of said first tube inside surface proximate said bonding region and distal of said bonding region.
34. A catheter shaft as recited in claim 33, wherein said first tube includes said second material as an inside layer, said first material as an outside layer, and a tie-layer disposed between said inside and outside layers.
35. A catheter shaft as recited in claim 32, wherein said first tube has said inside surface formed of said second material proximate said bonding region and has said inside surface formed of said first material distal of said bonding region.
36. A catheter shaft as recited in claim 35, further comprising a transition tie-layer disposed between said first and second materials.
37. A catheter shaft as recited in claim 36, wherein said second tube includes polyethylene and said first tube includes polyethylene proximate said bonding region and said first tube is formed of PEBA distal of said tie-layer.
38. A catheter shaft as recited in claim 27, wherein said first tube inside surface includes said first material.
39. A catheter shaft as recited in claim 38, wherein said first tube inside and outside surfaces are formed of said first material.
40. A catheter shaft as recited in claim 39, wherein said first tube is formed of said first material proximate said bonding region and distal of said bonding region.
41. A catheter shaft as recited in claim 40, wherein said second tube has a proximal portion proximate said bonding region having an outside surface formed of said first material.
42. A catheter shaft as recited in claim 40, wherein said second tube is formed of said first material in said proximal portion and formed of said second material distal of said proximal portion and has a transition tie-layer therebetween.
43. A catheter shaft as recited in claim 40, wherein said second tube is formed of said second material, said second tube proximal portion includes a tie-layer disposed over said second material and an outer layer of said first material disposed over said tie-layer.
44. A catheter shaft as recited in claim 40, wherein said second tube has said inside layer formed of said second material, a tie-layer disposed over said inside layer, and an outside layer formed of said first material disposed over said tie-layer.
45. A catheter shaft as recited in claim 40, wherein said second tube proximal portion is formed of said first material and said second tube distal of said proximal portion is bonded to said proximal portion and has an inside layer formed of said second material, a tie-layer disposed over said inside layer, and an outer layer formed of said second material disposed over said tie-layer.
46. A catheter shaft as recited in claim 40, wherein said second tube proximal and distal portions have an inside layer formed of said second material and an outside tie-layer disposed over said inside layer.
47. A catheter shaft comprising:
a first tube including a lumen, an inside wall surface, and an outside wall surface;

a second tube having at least a portion disposed outside of said first tube, said second tube having a length, a lumen therethrough, an inside wall surface and an outside wall surface; and a bonding region bonding said second tube outside wall surface to said first tube outside wall surface, said second tube outside wall surface being formed of a second material for a majority of said second tube length, said first tube wall having a layer of a first material extending for a majority of said first tube length, said first material being different from said second.
48. A catheter shaft as recited in claim 47, wherein said first material includes PEBA and said second material includes polyethylene.
CA002348073A 1998-10-23 1999-10-21 Catheter having improved bonding region Expired - Fee Related CA2348073C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/178,126 1998-10-23
US09/178,126 US20020007145A1 (en) 1998-10-23 1998-10-23 Catheter having improved bonding region
PCT/US1999/024689 WO2000024450A1 (en) 1998-10-23 1999-10-21 Catheter having improved bonding region

Publications (2)

Publication Number Publication Date
CA2348073A1 true CA2348073A1 (en) 2000-05-04
CA2348073C CA2348073C (en) 2009-12-15

Family

ID=22651312

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002348073A Expired - Fee Related CA2348073C (en) 1998-10-23 1999-10-21 Catheter having improved bonding region

Country Status (7)

Country Link
US (4) US20020007145A1 (en)
EP (1) EP1131128B1 (en)
JP (1) JP4786033B2 (en)
AT (1) ATE284731T1 (en)
CA (1) CA2348073C (en)
DE (1) DE69922691T2 (en)
WO (1) WO2000024450A1 (en)

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ATE284731T1 (en) 2005-01-15
EP1131128A1 (en) 2001-09-12
US20060217682A1 (en) 2006-09-28
JP4786033B2 (en) 2011-10-05
WO2000024450A1 (en) 2000-05-04
US20110034904A1 (en) 2011-02-10
CA2348073C (en) 2009-12-15
US8636717B2 (en) 2014-01-28
US7815625B2 (en) 2010-10-19
JP2002528189A (en) 2002-09-03
US8292874B2 (en) 2012-10-23
DE69922691T2 (en) 2005-12-29
US20020007145A1 (en) 2002-01-17
DE69922691D1 (en) 2005-01-20
US20130072906A1 (en) 2013-03-21
EP1131128B1 (en) 2004-12-15

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