CA2206367A1 - Kink-resistant braided catheter with distal side holes - Google Patents

Kink-resistant braided catheter with distal side holes

Info

Publication number
CA2206367A1
CA2206367A1 CA2206367A CA2206367A CA2206367A1 CA 2206367 A1 CA2206367 A1 CA 2206367A1 CA 2206367 A CA2206367 A CA 2206367A CA 2206367 A CA2206367 A CA 2206367A CA 2206367 A1 CA2206367 A1 CA 2206367A1
Authority
CA
Canada
Prior art keywords
catheter
section
sections
typically
tubing
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
CA2206367A
Other languages
French (fr)
Other versions
CA2206367C (en
Inventor
Gene Samson
Hanh Doan
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.)
Target Therapeutics Inc
Original Assignee
Target Therapeutics Inc
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 Target Therapeutics Inc filed Critical Target Therapeutics Inc
Publication of CA2206367A1 publication Critical patent/CA2206367A1/en
Application granted granted Critical
Publication of CA2206367C publication Critical patent/CA2206367C/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
    • A61M25/0043—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
    • 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
    • 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
    • A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
    • A61M25/0074—Dynamic characteristics of the catheter tip, e.g. openable, closable, expandable or deformable
    • A61M2025/0079—Separate user-activated means, e.g. guidewires, guide tubes, balloon catheters or sheaths, for sealing off an orifice, e.g. a lumen or side holes, of a catheter
    • 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
    • A61M25/0053—Catheters; Hollow probes characterised by structural features with embedded materials for reinforcement, e.g. wires, coils, braids having a variable stiffness along the longitudinal axis, e.g. by varying the pitch of the coil or braid
    • 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
    • A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
    • A61M25/0068—Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
    • A61M25/007—Side holes, e.g. their profiles or arrangements; Provisions to keep side holes unblocked

Abstract

This is a catheter section having a number of radially placed holes through the catheter section wall and a catheter assembly including that section. That catheter assembly may be used in accessing and treating a tissue target within the body, typically one which is accessible through the vascular system. Central to the catheter section is the presence of a braided metallic reinforcing member, typically of super-elastic alloy ribbon, situated in such a way to provide an exceptionally thin wall, controlled stiffness, high resistance to kinking, and complete recovery in vivo from kinking situations. The orifices in the section are optimally placed in theinterstices between the turns of the braid. The braid may have a single pitch ormay vary in pitch along the axis of the catheter or catheter section. The braided ribbon reinforcing member typically is placed between a flexible outer tubing member and an inner tubing member to produce a catheter section which is very flexible but highly kink resistant.
The catheter sections made according to this invention may be used alone or in conjunction with other catheter sections either made using the concepts shown herein or made in other ways. The more proximal sections of the catheter assembly are often substantially stiffer than the more distal sections due to the presence of stiff polymeric tubing or metallic tubing or composited materials in the stiffer section.
CA002206367A 1996-05-30 1997-05-28 Kink-resistant braided catheter with distal side holes Expired - Fee Related CA2206367C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/652,701 1996-05-30
US08/652,701 US5782811A (en) 1996-05-30 1996-05-30 Kink-resistant braided catheter with distal side holes

Publications (2)

Publication Number Publication Date
CA2206367A1 true CA2206367A1 (en) 1997-11-30
CA2206367C CA2206367C (en) 2001-02-13

Family

ID=24617816

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002206367A Expired - Fee Related CA2206367C (en) 1996-05-30 1997-05-28 Kink-resistant braided catheter with distal side holes

Country Status (10)

Country Link
US (2) US5782811A (en)
EP (1) EP0810003B1 (en)
JP (1) JP2965940B2 (en)
KR (1) KR970073616A (en)
AT (1) ATE239520T1 (en)
AU (1) AU692733B2 (en)
CA (1) CA2206367C (en)
DE (1) DE69721631T2 (en)
NO (1) NO972452L (en)
TW (1) TW341519B (en)

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* Cited by examiner, † Cited by third party
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US6197014B1 (en) 2001-03-06
US5782811A (en) 1998-07-21
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KR970073616A (en) 1997-12-10
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CA2206367C (en) 2001-02-13
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