DE69034045T2 - Filter-Katheter - Google Patents

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Publication number
DE69034045T2
DE69034045T2 DE69034045T DE69034045T DE69034045T2 DE 69034045 T2 DE69034045 T2 DE 69034045T2 DE 69034045 T DE69034045 T DE 69034045T DE 69034045 T DE69034045 T DE 69034045T DE 69034045 T2 DE69034045 T2 DE 69034045T2
Authority
DE
Germany
Prior art keywords
channel
filter
line
catheter
distal end
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.)
Expired - Lifetime
Application number
DE69034045T
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English (en)
Other versions
DE69034045D1 (de
Inventor
Jean-Marie Lefebvre
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.)
Individual
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9388968&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69034045(T2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of DE69034045D1 publication Critical patent/DE69034045D1/de
Publication of DE69034045T2 publication Critical patent/DE69034045T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/01—Filters implantable into blood vessels
    • A61F2/0108—Both ends closed, i.e. legs gathered at both ends
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/01—Filters implantable into blood vessels
    • A61F2/011—Instruments for their placement or removal
    • 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
    • A61M25/0082—Catheter tip comprising a tool
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C61/00—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
    • B29C61/06—Making preforms having internal stresses, e.g. plastic memory
    • B29C61/0608—Making preforms having internal stresses, e.g. plastic memory characterised by the configuration or structure of the preforms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114—Single butt joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/118—Single monotone curved joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1222—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a lapped joint-segment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1224—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a butt joint-segment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/532—Joining single elements to the wall of tubular articles, hollow articles or bars
    • B29C66/5324—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length
    • B29C66/53241—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length said articles being tubular and said substantially annular single elements being of finite length relative to the infinite length of said tubular articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/61—Joining from or joining on the inside
    • B29C66/612—Making circumferential joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
    • B29C71/02—Thermal after-treatment
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
    • A61B2017/22038—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with a guide wire
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/39—Markers, e.g. radio-opaque or breast lesions markers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30003—Material related properties of the prosthesis or of a coating on the prosthesis
    • A61F2002/3006—Properties of materials and coating materials
    • A61F2002/3008—Properties of materials and coating materials radio-opaque, e.g. radio-opaque markers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30003—Material related properties of the prosthesis or of a coating on the prosthesis
    • A61F2002/3006—Properties of materials and coating materials
    • A61F2002/30092—Properties of materials and coating materials using shape memory or superelastic materials, e.g. nitinol
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30108—Shapes
    • A61F2002/30199—Three-dimensional shapes
    • A61F2002/30289—Three-dimensional shapes helically-coiled
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30331—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit
    • A61F2002/30354—Cylindrically-shaped protrusion and recess, e.g. cylinder of circular basis
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30331—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit
    • A61F2002/30362—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit with possibility of relative movement between the protrusion and the recess
    • A61F2002/3037—Translation along the common longitudinal axis, e.g. piston
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30451—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements soldered or brazed or welded
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30589—Sealing means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30617—Visible markings for adjusting, locating or measuring
    • A—HUMAN NECESSITIES
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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    • A61F2220/0033—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementary-shaped recess, e.g. held by friction fit
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    • A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
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    • A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2250/0058—Additional features; Implant or prostheses properties not otherwise provided for
    • A61F2250/0096—Markers and sensors for detecting a position or changes of a position of an implant, e.g. RF sensors, ultrasound markers
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    • A61F2250/0098—Markers and sensors for detecting a position or changes of a position of an implant, e.g. RF sensors, ultrasound markers radio-opaque, e.g. radio-opaque markers
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    • A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
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    • A61F2310/00005—The prosthesis being constructed from a particular material
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    • A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00005—The prosthesis being constructed from a particular material
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    • A61M25/00—Catheters; Hollow probes
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    • A61M25/008—Strength or flexibility characteristics of the catheter tip
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
    • B29C2035/0855—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using microwave
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/14—Twisting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/12—Use of polyvinylhalogenides or derivatives thereof as moulding material containing fluorine
    • B29K2027/18—PTFE, i.e. polytetrafluorethene, e.g. ePTFE, i.e. expanded polytetrafluorethene
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/753—Medical equipment; Accessories therefor
    • B29L2031/7542—Catheters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/772—Articles characterised by their shape and not otherwise provided for
    • B29L2031/7732—Helical

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Vascular Medicine (AREA)
  • Transplantation (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Cardiology (AREA)
  • Pulmonology (AREA)
  • Biophysics (AREA)
  • Anesthesiology (AREA)
  • Hematology (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Surgical Instruments (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • External Artificial Organs (AREA)
  • Materials For Medical Uses (AREA)
  • Filtering Materials (AREA)

Description

  • Die Erfindung betrifft einen Filter-Katheter wie er im Überbegriff des Anspruchs 1 beschrieben ist. Ein derartiger Katheter ist aus dem Patent FR-A-2 606 642 bekannt. Die flexiblen Bänder zwischen den Aussparungen können eine aufgeblähte Form durch Verschiebung der inneren Leitung in proximaler Richtung gegenüber dem Kanal einnehmen. Als Folge davon werden die Bänder aufgefaltet nach Art von Regenschirm-Stäbchen bis gegen die Wand eines Blutgefäßes. Der so gebildete Filter dient insbesondere dazu, Blutgerinsel zurück zu halten.
  • Die Erfindung betrifft die Verbesserung eines Filter-Katheters dieser an sich bekannten Art.
  • Dieser Zweck wird bezüglich des Filter-Katheters gemäß der Erfindung durch die kennzeichenden Merkmale des Anspruchs 1 erreicht.
  • Durch die Leitung kann man in geeigneter Weise ein therapeutisches Behandlungsmittel an den Ort des Filters bringen. Ein derartiges Mittel ist beispielsweise ein Antigerinnungsmittel vom Heparin-Typ oder ein Fibrinolit-Mittel. Auf diese Weise können die aufgefangenen Blutgerinsel aufgelöst werden.
  • Weitere Merkmale und Vorteile ergeben sich deutlich aus der folgenden Beschreibung einer bevorzugten Ausführungsform des Filter-Katheters zur zeitweiligen Verwendung, das in den beigefügten Zeichnungen dargestellt ist, in denen
  • 1 eine schematische Schnittansicht des Filters in Ruhestellung ist,
  • 2 eine schematische Schnittansicht des aufgeweiteten Filters ist,
  • 3 eine Querschnittsansicht des Filters gemäß der Achse D in 2 ist,
  • 4 eine schematische Schnittansicht des distalen Endes eines Filters ist,
  • 5 eine schematische Seitenansicht der Vorrichtung zum Halten des Filter-Katheters während der Behandlung zur Heißfixierung ist.
  • Der Filter-Katheter 1 der Erfindung setzt sich im wesentlichen aus einem hohlen Kanal 2 und einer hohlen Leitung 3 zusammen, die koaxial im Inneren des Kanals 2 angeordnet ist. Diese beiden Elemente, Kanal 2 und Leitung 3 bestehen aus Polytetrafluorethylen.
  • In der vorliegenden Beschreibung sind die Begriffe „proximal" und „distal" so verwendet, daß sie den Teil des Körpers des Patienten als Bezug nehmen, durch den der Filter eingeführt wird. Somit ist das distale Ende des Filters, der in den 1 und 2 rechts dargestellt ist, die am weitesten von diesem Teil des Körpers entfernte Ende und ist das proximale Ende, das am nächsten Liegende.
  • Die distalen Enden 2a des Kanals 2 bzw. 3a der Leitung 3 sind warmverschweißt zusammengefügt sowie um einen Metallring 4 aus rostfreiem Stahl, Platin oder Gold angeordnet. Dieser Ring 4 ist aus einem strahlungshalbdurchlässigen Material, das während der Positionierung des Filters erfaßbar ist.
  • Wie sich das deutlich aus den 1 und 2 ergibt, ist der Ring 4 zwischen dem Kanal 2 und dem distalen Ende 3a der Leitung 3 angeordnet, wobei das distale Ende 2a des Kanals in das Innere der Leitung 3 gefaltet ist und das distale Ende 3a der Leitung abdeckt. Die Wärmeverschweißung erreicht die Zusammenfügung dieser Elemente und bildet so das Ende 15 des Filter-Katheters.
  • Gemäß einem anderen Ausführungsbeispiels, das in 4 dargestellt ist, wirkt die Wärmeverschweißung dagegen so, daß das distale Ende 3a der inneren Leitung 3 jenseits des Metallrings 4 mündet und sich nach außen erweitert, wo es mit dem distalen Ende 2a des Kanals 2 in Kontakt kommt.
  • Stromauf seines distalen Endes 2a weist der Kanal 2 sechs Einschnitte 5 auf, die in Längsrichtung über eine Länge d von 30 mm eingebracht sind; sie sind über den Umfang des Kanals gleichmäßig verteilt. Diese Einschnitte 5 begrenzen sechs identische Bänder 6, deren jedes einen Winkelraum von 60° des Kanals 2 einnimmt. Bei einem Kanal 2 mit 3 mm Durchmesser besitzt jedes Band 6 eine Größe von etwa 1,5 mm.
  • Die Leitung 3 ist hohl und weist einen Zentralkanal 7 auf, in dem ein Metallstab 8 frei bewegbar ist, der als Führungsstab bei der Einführung des Filter-Katheters dient.
  • Am proximalen Ende, jedoch außerhalb des Körper des Patienten ist der Kanal 2 an einer Halte- und Versorgungseinrichtung 9 fixiert. Diese Einrichtung 9 weist ein Zylinderrohr sowie endseitige Abdeckteile 11 und 12 auf. Das erste ringförmige Abdeckteil 11 verbindet das proximale Ende 2b des Kanals 2 am vorderen Teil des Rohrs 10. Das zweite Abedeckteil 12 umgibt die Leitung 3 und schließt den hinteren Teil des Rohrs 10 ab. Ein Winkelstück 13 mündet schräg in den Körper des Rohrs 10 ein.
  • Das proximale Ende 3b der Leitung 3 ragt über das Rohr 10 hinaus. Das Abdeckteil 12 umschließt dieses distale Ende 3b in dichter Weise; andererseits kann die Leitung 3 in Längsrichtung in dem Abdeckteil 12 gegenüber dem Rohr 10 und damit dem Kanal 2 gleiten.
  • Eine Blockierabdeckung 14 dient zur Sicherstellung der Blockierung der Leitung 3 gegen das Abdeckteil 12.
  • Das Rohr 10 ist in an sich bekannter Weise nahe dem Patienten an einem Gestell befestigt, das 2 Systeme zur Versorgung mit zu injizierenden Mitteln trägt, wobei das Erstere in dem proximalen Ende 3b der Leitung mündet und wobei das Letztere in dem Winkelstück 13 des Rohrs 10 mündet.
  • Die Nutzung des Filter-Katheters erfolgt folgendermaßen:
    In einer ersten Phase wird der Führungsstab 8 auf perkutanem Wege in die geeignete Vene eingeführt bis sein distales Ende 8a sich in der unteren Hohlvene des Patienten in Lage befindet.
  • In einer zweiten Phase läßt man von außerhalb des Körpers des Patienten den Filter-Katheter 1 längs des Führungsstabes 8 gleiten bis der Ring 4 sich in der Hohlvene in Lage befindet, dort, wo der Filter einzusetzen bzw. zu implantieren ist.
  • Während der Durchführung dieser zweiten Phase sind die Bänder 6 in ihrer Ruhestellung, d. h. daß sie sich in der Erstreckung bzw. Verlängerung des Kanals 2 befinden.
  • In einer dritten Phase, die durch 2 dargestellt ist und die dem Aufblähen oder Aufweiten des Filters entspricht, ist das Blockierabdeckteil 14 entsperrt derart, daß die Leitung 3 in dem Abdeckten 12 gleiten kann. Dann verschiebt man mit Vorsicht das proximale Ende 3b der Leitung 3 nach hinten in Richtung des Pfeils F. In dieser Phase wird die Leitung 3 verschoben ebenso wie der Ring 4, der mit dem distalen Ende 3a der Leitung fest verbunden ist. Unter der Voraussetzung, daß das Rohr 14 und damit der Kanal 2 in Lage gehalten sind, kann das Rückpolen des Rings 4 in Richtung des Pfeils F nur dank des Vorhandenseins der flexiblen Bänder 6 erfolgen. Jedes Band 6 faltet sich individuell auf unter Bildung einer homogenen Querverformung des Kanals in dem Bereich der Einschnitte 5. Die Verschiebung und die Länge der Bänder 6 sind derart gewählt, daß in der Aufweitungsposition die mittleren oder medianen Teile 15 der Bänder 6, die der Ebene D der Krümmung entsprechen, sich an die Innenwand 16 der Vene anlegen. Wenn einmal der Filter richtig aufgeweitet ist, wird das Blockierabdeckten 14 wieder derart verriegelt, daß es jede Verschiebung der Leitung 3 gegenüber dem Kanal 2 verhindert und somit die Bänder 6 in ihrem in Querrichtung verformten Zustand hält.
  • Wie sich das deutlich aus 3 ergibt, die einen Schnitt gemäß der Ebene D darstellt, sind die sechs Bänder 6 in Querrichtung gegenüber dem Kanal 2 aufgeweitet und verdecken teilweise das Innere 17 der Vene 18. Auf diese Weise werden die sich im Inneren 17 der Vene 18 bewegenden Blutgerinsel durch die Bänder 16 aufgehalten während das Blut frei zirkulieren kann.
  • Vor einer Nutzung des Filter-Katheters wird dieses einer Wärmebehandlung zur Heißfixierung unterworfen. Diese Behandlung besteht im Vorsehen eines Wärmeschocks an dem distalen Teil des Filters, während die flexiblen Bänder 6 in ihrem aufgeweiteten Zustand sind, wie in 2 dargestellt. Die Dauer dieser Behandlung und deren Temperatur sind dabei derart bestimmt, daß die durch die Bänder eingenommene Form in irgend einer Art und Weise in der Polymerstruktur des Polytetrafluorethylens gespeichert ist. Diese Behandlung verbessert den Widerstand gegenüber einer Verformung der Bänder 6 und vermeidet ein Einsinken oder Einfallen des Filters im Inneren der Vene 18 und die Gefahr einer Trombogenese aufgrund von im Blutfluß erzeugten Turbulenzen durch eine Heterogenität der Anordnung der Bänder 6 in der Vene.
  • Gemäß einem anderen Ausführungsbeispiel der Heißfixierungsbehandlung, wie sie in 5 dargestellt ist, wird die thermische oder Wärmebehandlung an dem distalen Teil des Filter-Katheters ausgeübt während die flexiblen Bänder 6 eine verdrehte Form besitzen. Zu diesem Zweck wird in der inneren Leitung 3 ein Dorn 19 eingepaßt, um den distalen Teil des Filter-Katheters zu verfestigen; das distale Ende 2a des Kanals 2 wird in einem stromaufseitigen Zweig 20 eines Halterungsteils 21 in Lage blockiert, wobei der Kanal 2 einer Rotation um sich selbst unterworfen wird, die den flexiblen Bändern 6 die verdrehte in 5 dargestellte Form gibt, woraufhin der Kanal 2 stromauf dieser flexiblen Bänder in dem hinteren Zweig 22 des Halterungsteils 21 blockiert wird. Das Halterungsteil 21 und der distale Teil des Filter-Katheters werden in einem Brennofen angeordnet, beispielsweise einem, der mit Mikrowellen arbeitet, um dort die Wärmebehandlung während 4 bis 5 Minuten durchzuführen. Es ist anzumerken, daß während der Nutzung des Filters die flexiblen Bänder 6 die während der Wärmebehandlung aufgezwungene wendelförmige Form einnehmen möchten. Selbstverständlich können auf dem Halterungsteil 21 die Bänder 6 die Ruhelage einnehmen, wie es in 5 dargestellt ist, oder auch die aufgeweitete Lage.
  • Ein therapeutisches Behandlungsmittel kann stromauf des Filters durch die Leitung 3 injiziert werden, ausgehend von seinem proximalen Ende 3b. Es handelt sich um ein Antiblutgerinnungsmittel vom Heparintyp oder ein Fibrinilot. Die Leitung 3 kann in der den Bändern 6 zuweisenden Zone Öffnungen beispielsweise in Wendelform aufweisen. Auf diese Weise kann das therapeutische Behandlungsmittel, das in die Leitung 3 eingeführt ist, gleichzeitig stromauf und in Höhe des Filters selbst verteilt werden.
  • Das gleiche Mittel oder auch ein anderes therapeutisches Behandlungsmittel kann in die Zone unmittelbar stromab des Filters durch den Kanal 2 ausgehend von dem Winkelstück 13 des Rohrs 10 injiziert werden.
  • Wenn einmal die Behandlung als zufriedenstellen beurteilt ist, erfolgt das Zurückziehen bzw. Entfernen des Filters in folgender Weise. Das Blockierabdeckteil 14 wird entsperrt, und das proximale Ende 3b der Leitung 3 wird in Gegenrichtung zum Pfeil F zurückgestoßen bis die länglichen Teile oder flexiblen Bänder 6 ihre Ruhelage wieder eingenommen haben, geradelinig und parallel zueinander. Dann wird das Abdeckteil 14 von neuem wieder verriegelt und die Anordnung aus Leitung 3 und Kanal 2 wird aus der Vene herausgezogen.
  • Untersuchungen bzw. Versuche mit Hilfe des Filter-Katheters gemäß der Erfindung haben zur Feststellung geführt, daß die Bildung von Blutgerinseln aufgrund des Vorhandenseins des Filters in der Vene nicht mehr vorkommt.
  • Die Erfindung ist nicht auf das beschriebene beispielhafte Ausführungsbeispiel beschränkt, sondern umfaßt alle Weiterbildungen, die sich aus dem Anspruch 1 ergeben. Insbesondere kann der Führungsstab 8 hohl ausgebildet sein und die Injektion eines Behandlungsmittels stromauf des Filters selbst vorsehen deutlich jenseits des distalen Endes des Filter-Katheters 1.

Claims (2)

  1. Filter-Katheter zur teilweisen und zumindest zeitweiligen Unterbrechung eines Blutgefäßes, mit einem Kanal (2) und mit einem distalen Ende und einem proximalen Ende, wobei an seinem distalen Ende symmetrisch über den Umfang verteilt Längseinschnitte vorgesehen sind, die flexible Bänder (6) begrenzen, wobei sich in einem Lumen des Kanals (2) eine innere Leitung (3) mit einem distalen Ende und einem proximalen Ende befindet, wobei der Kanal (2) und der inneren Leitung (3) an ihren distalen Enden (2a, 3a) fest miteinander verbunden sind, dadurch gekennzeichnet, daß zwischen dem Lumen des Kanals (2) und der inneren Leitung (3) eine Leitung gebildet ist für das Einführen eines Behandlungsmittels, wobei die Leitung einerseits mit dem Filterelement und andererseits mit einem Innenraum einer Einrichtung (9) zum Halten und zum Versorgen verbunden ist, die im wesentlichen zylindrisch und koaxial zum Kanal (2) ist, an einem ihrer Enden mit diesem Kanal (2) fest verbunden ist und an einem ihrer anderen Ende die innere Leitung (3) einsperrt, jedoch eine Verschiebbarkeit in abdichtende Weise erlaubt.
  2. Filter-Katheter nach Anspruch 1 dadurch gekennzeichnet, daß die Halte- und Versorgungseinrichtung (9) Abdichtmittel zur gleitenden Aufnahme der inneren Leitung aufweist.
DE69034045T 1989-12-13 1990-11-07 Filter-Katheter Expired - Lifetime DE69034045T2 (de)

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Application Number Priority Date Filing Date Title
FR8917201 1989-12-13
FR8917201A FR2655533A1 (fr) 1989-12-13 1989-12-13 Filtre-catheter.

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DE69034045T2 true DE69034045T2 (de) 2004-03-04

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DE69034045T Expired - Lifetime DE69034045T2 (de) 1989-12-13 1990-11-07 Filter-Katheter
DE69031304T Expired - Lifetime DE69031304T2 (de) 1989-12-13 1990-11-07 Filter-Katheter-Kombination
DE69034049T Expired - Lifetime DE69034049T2 (de) 1989-12-13 1990-11-07 Verfahren zur Herstellung eines Filter-Katheters, und Filter-Katheter

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JP (1) JP3143478B2 (de)
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CA (1) CA2029280C (de)
DE (3) DE69034045T2 (de)
DK (1) DK0437121T3 (de)
ES (1) ES2104595T3 (de)
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EP0437121B1 (de) 1997-08-20
EP0771549A2 (de) 1997-05-07
JPH04126161A (ja) 1992-04-27
EP0437121A3 (en) 1991-11-06
EP0771550A2 (de) 1997-05-07
DE69031304D1 (de) 1997-09-25
EP0771549B1 (de) 2003-02-26
ATE234052T1 (de) 2003-03-15
JP3143478B2 (ja) 2001-03-07
EP0771549A3 (de) 1997-07-30
DE69031304T2 (de) 1997-12-18
GR3025263T3 (en) 1998-02-27
DE69034049T2 (de) 2003-12-11
EP0771550B1 (de) 2003-03-12
EP0437121A2 (de) 1991-07-17
ATE233072T1 (de) 2003-03-15
CA2029280A1 (en) 1991-06-14
FR2655533A1 (fr) 1991-06-14
DE69034049D1 (de) 2003-04-17
EP0771550A3 (de) 1997-08-20
ES2104595T3 (es) 1997-10-16
DE69034045D1 (de) 2003-04-03
DK0437121T3 (da) 1998-04-06
ATE156992T1 (de) 1997-09-15
CA2029280C (en) 2000-11-14

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