JP3143478B2 - フィルターカテーテル - Google Patents

フィルターカテーテル

Info

Publication number
JP3143478B2
JP3143478B2 JP02415729A JP41572990A JP3143478B2 JP 3143478 B2 JP3143478 B2 JP 3143478B2 JP 02415729 A JP02415729 A JP 02415729A JP 41572990 A JP41572990 A JP 41572990A JP 3143478 B2 JP3143478 B2 JP 3143478B2
Authority
JP
Japan
Prior art keywords
conduit
filter
tubular body
catheter
filter catheter
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
JP02415729A
Other languages
English (en)
Other versions
JPH04126161A (ja
Inventor
ルフェブル ジャン・マリー
Original Assignee
ルフェブル ジャン・マリー
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=JP3143478(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by ルフェブル ジャン・マリー filed Critical ルフェブル ジャン・マリー
Publication of JPH04126161A publication Critical patent/JPH04126161A/ja
Application granted granted Critical
Publication of JP3143478B2 publication Critical patent/JP3143478B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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
    • A61F2002/30667—Features concerning an interaction with the environment or a particular use of the prosthesis
    • A61F2002/30677—Means for introducing or releasing pharmaceutical products, e.g. antibiotics, into the body
    • 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
    • A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2210/0014—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof 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
    • A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • 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
    • 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
    • A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2220/0058—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
    • A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
    • A61F2230/0004—Rounded shapes, e.g. with rounded corners
    • A61F2230/0006—Rounded shapes, e.g. with rounded corners circular
    • 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
    • A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0063—Three-dimensional shapes
    • A61F2230/0091—Three-dimensional shapes helically-coiled or spirally-coiled, i.e. having a 2-D spiral cross-section
    • 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
    • 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
    • A61F2250/0067—Means for introducing or releasing pharmaceutical products into the body
    • 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
    • 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
    • A61F2250/0069—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
    • 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
    • A61F2250/0097—Visible markings, e.g. indicia
    • 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
    • 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
    • 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
    • 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
    • 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
    • A61F2310/00011—Metals or alloys
    • A61F2310/00017—Iron- or Fe-based alloys, e.g. stainless steel
    • 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
    • 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
    • A61F2310/00011—Metals or alloys
    • A61F2310/00023—Titanium or titanium-based alloys, e.g. Ti-Ni alloys
    • 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
    • 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
    • A61F2310/00011—Metals or alloys
    • A61F2310/00035—Other metals or alloys
    • A61F2310/00155—Gold or Au-based alloys
    • 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
    • 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
    • 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
    • A61M25/008—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
    • 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
    • B29L2031/753—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)
  • Anesthesiology (AREA)
  • Pulmonology (AREA)
  • Hematology (AREA)
  • Biophysics (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

【発明の詳細な説明】
［発明の目的］
【０００１】
【産業上の利用分野】本発明は静脈内を循環する血栓を
止めるに適合する医用のフィルター並びに静脈内にフィ
ルターを導入するためのカテーテルに関し、得に一時的
に使用されるフィルター、即ち患者に対して施された治
療が満足なものと判断されフィルターを存在させること
がもはや必要ないと判定された場合に静脈から引き出せ
るフィルターカテーテルに関する。
【０００２】
【従来の技術】このような一時的なフィルターは、特に
特許ＦＲ−Ａ−２５８０５０４により知られている。こ
れらは導入のためにカテーテルの末端に固定されてい
る。これらの構造は、静脈内への導入中は濾過を保証す
るエレメントがカテーテルを延長するシース内に折り曲
げられ、且つフィルターが静脈内に置かれた時は、遠隔
制御手段によって上記濾過エレメントが広げられるよう
になっている。
【０００３】ＦＲ−Ａ−２５８０５０４のフィルターに
於いて、濾過手段は複数の脚から成り、それらは静止時
には円筒の母線にに沿って相互にほぼ並行に延在してい
る。また、これらを広げる手段は、フィルター脚によっ
て規定された上記円筒の内側に設けられた可逆的な拡張
手段である。変形することにより、拡張手段は、少なく
ともその末端領域に於いて、静脈壁に対して加えるに十
分な強さで脈を内側から押し出して、傘のスポークの様
にして脚を広げる。
【０００４】これらの公知のフィルターは２つの欠点を
有する。一つには、これらは、カテーテルの末端に配置
され、且つフィルターが静脈内で広げられている時に引
き出せるようになっている濾過脚を保護する捕捉的なシ
ースを必要とすることである。
【０００５】他方には、これらが濾過エレメントを広げ
るための捕捉的な複雑な拡張手段を必要とすることであ
る。この拡張手段としては、可逆的に遠隔制御が可能な
ものである必要があり、例えば適当な流体を供給する導
管を有し、ふくらますことができるバルーンを要する。
【０００６】これはフィルター及びカテーテル組立体の
構造を複雑で微細なものにしている。
【０００７】以上で明らかにされた欠点を克服するため
に、文献ＦＲ−Ａ−２６０６６４２は、カテーテルの末
端に設けられ且つフレキシブルな複数の脚から成る濾過
エレメントを提案している。ここで、これらのフレキシ
ブルな脚の向かい合う端は、相対位置を修正する手段に
よって互いに結合された２つの部材間に置かれる。その
結果、縦軸に沿った２つの部材の接近により、フレキシ
ブルな脚の横断的な拡張が起ることになる。
【０００８】文献ＦＲ−Ａ−２６０６６４２に於いて挙
げられた実施例ではフレキシブルな脚はカテーテルの末
端分を構成する管状体を切り出すことにより得られる。
ここで、この末端部は、管状体の内側を縦方向にスライ
ドすることができる内部導管に固定される。
【０００９】この実施例は特に単独である。しかしなが
ら、このようなフィルターカテーテルが静脈内に存在す
ると、フィルターの直ぐ近くに局在した血栓を生じさせ
る可能性のあることが出願人により認められた。
【００１０】
【発明が解決しようとする課題】本発明は前記欠点を克
服するタイプのフィルターカテーテルを提案することを
目的としている。
【００１１】［発明の構成］
【００１２】
【課題を解決するための手段】本発明は（１）静脈を部
分的かつ巣食くとも一時的にさえぎるために、末端方向
に周囲にかけて対称的に分布され且つフレキシブルな複
数の帯状体を規定する複数の縦の刻み目をつれる管状体
と、管状体の内側の導管及び管状体をそれらの末端付近
で堅く結合され管状体及び内部の導管を４弗化エチレン
製とするフィルターカテーテル。
【００１３】（２）管状体及び導管の末端が熱溶接され
るフィルターカテーテル。
【００１４】（３）管状体及び導管の末端間に含められ
且つそれらに熱溶接により固定された放射線の不透過材
料製のリングから構成されて成るフィルターカテーテ
ル。
【００１５】（４）管状体の末端は導管の内側の方へ折
り曲げられ、一方ではリングを、他方では導管の末端を
被覆するフィルターカテーテル。
【００１６】（５）内部導管の末端は、金属リングより
外方にフレアーにされているフィルターカテーテル。
【００１７】（６）導管が帯状体の向かい側に位置する
領域においてオリフィスから構成されて成るフィルター
カテーテル。
【００１８】（７）フィルターの末端部は熱硬化処理を
受け、フレキシブルな帯状体は変形に対する抵抗が改善
されているフィルターカテーテル。
【００１９】（８）過状体が広げられた状態で熱硬化処
理が行なわれ、フレキシブルな帯状体を構成する４弗化
エチレンが広げられた状態を記憶するフィルターカテー
テル。
【００２０】（９）帯状体が螺旋状によじられている間
に熱硬化処理が行なわれ、フレキシブルな帯状体を構成
する４弗化エチレンが螺旋形状を記憶するフィルターカ
テーテル。
【００２１】
【作用】本発明は静脈を部分的且つ少くとも一時的にさ
えぎるフィルターに関するもので、４弗化エチレン製の
管状体と、この管状体内の４弗化エチレン製の導管から
構成され、この管状体にはその末端方向に、周囲にかけ
て対称的に分布され、且つフレキシブルな複数の帯状体
を規定する複数の縦方向の刻み目がつけられ、管状体と
導管はそれらの末端付近で、例えば熱溶接によって接合
され、好ましくは、放射線の不透過材料からなるリング
が熱溶接中に、それらの末端間に含められ、フレキシブ
ルな帯状体は、管状体内をスライドする導管によって横
断的に広げられ、これらは、熱硬化処理を受け、４弗化
エチレンの重合体構造中にその広げられた形、又は螺旋
形を記憶する。
【００２２】
【実施例】本発明は末端方向に、周囲にかけて対称に分
布され且つフレキシブルな複数の帯状体を規定する縦方
向の刻み目をつける管状体と、この管状体の内側で且つ
その末端付近で管状体に固定された導管とから成り、部
分的且つ少くとも一時的に静脈をさえぎるフィルターに
よって完璧に十分達成され、管状体及び内部導管は両方
共４弗化エチレン（ポリテトラフルオロエチレン）製で
あり、４弗化エチレンがほんの僅かしか血栓を生じない
材料であり、この材料がその周囲に予め切り出されたフ
レキシブルな複数の帯状体の横断的な拡張を生じせしめ
るため証明された十分なフレキシビリティを与えるもの
として選択されている。
【００２３】本発明によるフィルターカテーテルは、好
ましくは、その末端方向に血流と接触する、まさしく４
弗化エチレンに他ならない材料から成っており、その場
合、管状体及び内部導管は熱溶接により接合される。
【００２４】しかしながら、静脈の内側にカテーテルを
貫通して置くことができることが望ましく、その目的の
ために、濾過エレメントの近くに放射線が不透過なエレ
メントを設けられ、本ケースに於いては、フィルターカ
テーテルは、管状体と内部導管の間に含められ且つ熱溶
接中にそれらに固定される放射線が不透過な材料、例え
ば金で作られたリングから構成され、このように、放射
線が不透過なエレメントは目に見ることはできないし、
且つ静脈壁に引っかかったり、血栓を形成する原因には
成り得ない。
【００２５】前フレキシブルな４弗化エチレンの帯状体
は、静脈内で長時間経過後、横断的に広げられ、フィル
ター組立体の固有の重量により変形を受けたことが認め
られ、このような変形は、最も下方の帯状体の離間の増
大、従って、フィルターがつぶれるという形で現われ、
それは、静脈の横断面に於ける複数の帯状体の不均一な
分布を引き起こすと共に、特に特定の帯状体の周りに血
栓を生じさせる血流の乱れ現象を起こすものである。
【００２６】この欠点を克服するために、本発明によれ
ばフィルターカテーテルの少くとも末端は予め熱硬化処
理を受けるが、この目的は、４弗化エチレンのフレキシ
ブルな帯状体の機械的な変形に対する抵抗を強めること
にあり、この熱硬化処理は、例えば電子レンジで４〜５
分ベーキングすることにより行うことが可能であり、こ
の熱硬化の間、上記フレキシブルな帯状体は、好ましく
は、それらの広げられた状態に置かれ、このようにし
て、上記４弗化エチレンは、その重合体構造内にこの広
げられた状態を記憶するある種の焼きを入れられる。別
の改良によれば、管状体は刻み目の上流で保持され、か
つ刻み目の下流ではフレキシブルな帯状体によじれた形
を付与するために管状体は自転され、その後、この形状
でフィルターカテーテルの末端に対し熱処理が行われ、
フレキシブルな帯状体は静止又は広げられた状態にな
り、この場合、フィルターカテーテルの使用中に、フレ
キシブルな帯状体は自然に再び螺旋形をとることにな
る。
【００２７】次に図面について説明する。本発明のフィ
ルターカテーテルは、本質的に中空の管状体２と、この
管状体２の内側に同軸的に設置される中空の導管３から
構成されている。これらの２つのエレメント、即ち管状
体２及び導管３は４弗化エチレン（ポリテトラフルオロ
エチレン）製である。
【００２８】本実施例に於いて、「基部」および「末
端」という用語は、フィルターが導入される患者の人体
の部分を引用して用いられている。フィルター１の末端
は、即ち、図１及び図２において右側に示された人体の
上記部分から最も離れた端であり、また基部痰は近い端
である。
【００２９】管状体２及び導管３の末端２ａ、３ａは、
それぞれ互いに熱溶接され、ステンレス鋼、白金もしく
は金製の金属リング４の周りにある。
【００３０】このリング４は、放射線を透過しない材料
で製作されており、上記フィルターの位置決め中検出可
能である。
【００３１】図１及び図２に於いて明確に示されている
通り、リング４は管状体２と導管３の末端３ａの間に設
置される。上記管状体の末端２ａは導管３の内側に曲げ
られて、上記導管の末端３ａを被覆している。これらの
エレメントは、フィルターカテーテルの端１５を形成す
るように互いに熱溶接されている。
【００３２】図４に図解された別の実施例によれば、内
部導管３の末端３ａは金属リング４から突出して外方へ
フレアーにされ、管状体２の末端２ａと接触する状態で
熱溶接が行われる。
【００３３】末端２ａの上流において、管状体２は、３
０ｍｍの長さｄにわたり縦方向につくられた６つの刻み
目５から成っている。これらの刻み目５は６個の同一帯
状体６を規定しており、管状体２の６０°角のスペース
を占めている。直径３ｍｍの管状体２の場合、各帯状体
６は約１．５ｍｍの幅を有する。
【００３４】導管３は中空で、中央の管路７から成って
おり、そこにおいてフィルターカテーテルの導入中案内
ロッドとして作用する金属ロッド８が自由にスライドす
ることができる。
【００３５】基部端の方向で、患者の人体の外側ではあ
るが、管状体２は維持及び供給のための装置９に固定さ
れている。この装置９は円筒管１０とエンドリング１
１、１２から構成されている。第１の環状リング１１は
管状体２の基部端を円筒管１０の前部に接合している。
第２のリング１２は導管３を囲むと共に円筒管１０の後
部に近接する。ひじ形部１３は、円筒管１０本体におい
て、斜めに開け広げられている。
【００３６】導管３の基部端３ｂは円筒管１０から延在
している。リング１２はこの末端３ｂを密封するように
囲んでいる。しかしながら、導管３は、円筒管１０に対
してリング１２内を縦に、従って管状体２へ滑ることが
できる。
【００３７】ブロック用リング１４は、導管３をリング
１２に対して閉止している。
【００３８】円筒管１０は、患者の近くで、知られた方
法によりフレームに固定される。このフレームは注入さ
れる（生産）物質を供給する２つのシステムを支持する
もので、先ず第１に上記導管の基部端３ｂにおいて、ま
た第２に円筒管１０のひじ形部１３において開けられて
いる。
【００３９】上記フィルターカテーテルは以下の条件下
で働く。
【００４０】第１の段階において、案内ロッド８は、そ
の末端８ａが患者の悪い大静脈内の位置になるまで、適
当な静脈内へ経皮的な経路で導入される。
【００４１】第２の段階において、フィルターが植設さ
れるべき大静脈の位置にリング４がくるまで、フィルタ
ーカテーテル１は患者の人体の外側から案内ロッド８に
沿ってスライドされる。この第２段階が実行される間、
帯状体６は静止状態、即ち管状体と並びとなる。
【００４２】図２で図解され且つ上記フィルターの開け
広がりに対応する第３の段階において、導管３をリング
１２内でスライドさせるようにブロック用リング１４が
解放される。導管３の基部端３ｂは、その後矢印Ｆの方
向へ後方に用心しながら変位させられる。この段階にお
いて、導管３は全体として、その末端と固定されたリン
グ４と同様に移動する。円筒管１０、従って管状体２の
位置が保持されていると、フレキシブルな帯状体６が存
在することのみにより、矢印Ｆ方向にリング４が戻るこ
とができる。各帯状体６は個々に折り曲がり、その結果
刻み目５の領域において上記管状体の均一な横断的な変
形が生じる。
【００４３】広げられた位置において帯状体６の中央部
分が静脈の内壁で湾曲Ｄを示すように、帯状体６の変位
量及び長さが選択される。
【００４４】一旦上記フィルターが正しく広げられる
と、ブロック用リング１４は管状体２に対する導管３の
変位を防止するために固く締められ、それにより帯状体
６を横断的な変形状態に維持することになる。
【００４５】平面Ｄに沿った断面である図３において明
白なように、６個の帯状体６は管状体２に対して横断的
に広げられ、部分的に静脈１８の内部をふさぐ。このよ
うにして、血が自由に循環する一方、静脈１８の内側を
移動する血栓は帯状体６によって阻止される。
【００４６】フィルターカテーテルを使用する前に、後
者は熱硬化処理を受けた。この処理は、フレキシブルな
帯状体６が図２において示されたように広げられた状態
にある間に、上記フィルターの末端に熱衝撃を与えるこ
とにある。この処理時間及び温度は、上記帯状体がとっ
た形状が、ある程度４弗化エチレンの重合体構造におい
て記憶されるように決定される。この処理は、上記帯状
体の変形に対する抵抗を強め、静脈１８の内側のフィル
ターがつぶれたり、静脈内の帯状体６の不均一な配置に
よって血流において生じる乱れに起因する血栓の危険を
避けるものである。
【００４７】図５に示された熱硬化処理の別の実施例に
よれば、フレキシブルな帯状体６がよじれた形をとる間
に、熱処理がフィルターカテーテルの末端に適用され
る。その目的のため、フィルターカテーテルの末端部を
硬直させるように心棒１９が内部導管３にはめ込まれ
る。管状体２の末端２ａは保持用の支持体２１の前脚２
０の位置でとめられる。管状体２は自転を受けることに
なり、それはフレキシブルな帯状体６に図５に示すよじ
れた形状を付与する。
【００４８】その後、管状体２は支持体２１の後脚２２
内のフレキシブルな帯状体６の上流位置でとめられる。
支持体２１及びフィルターカテーテルの末端部はベーキ
ング用オーブン、例えば電子レンジ内に置かれ、４〜５
分の熱処理を受けることになる。フィルターの使用中、
フレキシブルな帯状体６は熱処理の間に与えられた螺旋
形をとる傾向にある。もちろん、支持体２１上で、帯状
体６は、図５に示されたような静止位置、あるいは広げ
られた状態をとることができる。
【００４９】治療用の（生産）物質が導管３の基部端３
ｂより導管３を通って上記フィルターの上流で注入する
ことができる。これは、ヘパリン型または線維素を分解
する反凝固剤である。導管３は、帯状体６の反対領域
で、例えば螺旋状に配置されたオリフィスから構成する
ことができる。このようにして、導管３内へ導入された
治療用の物質は、上記フィルターの上流で且つそのフィ
ルター自体の水準に配分することができる。
【００５０】治療用の同様な物質、あるいは可能な別の
物質を円筒管１０のひじ形部１３から管状体２を通じて
上記フィルターの直接下流の領域に注入することができ
る。
【００５１】一旦、処置が満足なものと判断されると、
上記フィルターは次のようにして引き出される。
【００５２】即ち、帯状体６が、静止状態で、直線状で
かつ互いに並行な位置を再びとり始める迄、ブロック用
リング１４が解放されるとともに、矢印Ｆと反対の方向
に導管３の基部端３ｂが押される。リング１４はその後
再び固く締めつけられ、導管３／管状体２組立体が静脈
から引き出される。
【００５３】本発明によるフィルターカテーテルについ
て試験したところ、静脈内にフィルターが存在すること
に起因した血栓の形成がないことを認めることができ
た。
【００５４】本発明は、限定でない例として述べられた
上記実施例に限らず、その種々な変形例の全てに及ぶも
のである。特に、案内ロッド８が、中空でかつフィルタ
ーの下流でフィルターカテーテル１の末端よりずっと先
まで治療用物質を注入するようにしても良い。
【００５５】
【発明の効果】本発明により静脈内にフィルターが存在
することに起因した血栓の形成が生じないフィルターカ
テーテルを提供することができる。
【図面の簡単な説明】
【図１】本発明の一実施例を示す静止状態のフィルター
カテーテルの断面図である。
【図２】広げられたフィルターの断面図である。
【図３】軸Ｄに沿ったフィルターの横断面図である。
【図４】フィルターの末端の部分断面図である。
【図５】熱硬化処理中にフィルターカテーテルを保持す
る装置の側面図である。
【符号の説明】
１ フィルター ２ 管状体 ３ 導管 ４ 金属リング ６ 帯状体 ８ 案内ロッド １０ 円筒管 １１、１２ エンドリング １３ ひじ形部 １４ ブロック用リング
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) A61M 25/00

Claims (7)

    (57)【特許請求の範囲】
  1. 【請求項１】 末端方向に周囲にかけて対称的に分布さ
    れ且つフレキシブルな複数の帯状体を規定する複数の縦
    の刻み目をつける管状体と、この管状体の内側に配置さ
    れる導管と、この導管と前記管状体が前記末端付近で結
    合され、前記末端が放射線不透過材料を有してなるフィ
    ルターカテーテルにおいて、 前記管状体と前記導管が４弗化エチレンで形成され、 前記管状体と前記導管の末端が熱溶接され、 前記放射線不透過材料がリング状をなし、前記管状体と
    前記導管の末端間に含められ且つ熱溶接により固定され
    てなる血管用のフィルターカテーテル。
  2. 【請求項２】 前記管状体の末端が導管の内側の方へ折
    り曲げられ、一方では前記リングを、他方では前記導管
    の末端を被覆することを特徴とした請求項１のフィルタ
    ーカテーテル。
  3. 【請求項３】 前記導管の末端は、金属リングより外方
    にフレアーされている請求項１のフィルターカテーテ
    ル。
  4. 【請求項４】 前記導管が帯状体の向かい側に位置する
    領域においてオリフィスから構成されて成る請求項１記
    載のフィルターカテーテル。
  5. 【請求項５】 前記末端部は熱硬化処理を受け、フレキ
    シブルな帯状体は変形に対する抵抗が改善されることを
    特徴とした請求項１のフィルターカテーテル。
  6. 【請求項６】 前記帯状体が広げられた状態で熱硬化処
    理が行われ、フレキシブルな帯状体を構成する４弗化エ
    チレンが前記広げられた状態を記憶する請求項５のフィ
    ルターカテーテル。
  7. 【請求項７】 前記帯状体が螺旋状によじられている間
    に熱硬化処理が行われ、フレキシブルな帯状体を構成す
    る４弗化エチレンが前記広げられた状態を記憶する請求
    項５又は６のフィルターカテーテル。
JP02415729A 1989-12-13 1990-12-11 フィルターカテーテル Expired - Lifetime JP3143478B2 (ja)

Applications Claiming Priority (2)

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

Publications (2)

Publication Number Publication Date
JPH04126161A JPH04126161A (ja) 1992-04-27
JP3143478B2 true JP3143478B2 (ja) 2001-03-07

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JP (1) JP3143478B2 (ja)
AT (3) ATE233072T1 (ja)
CA (1) CA2029280C (ja)
DE (3) DE69031304T2 (ja)
DK (1) DK0437121T3 (ja)
ES (1) ES2104595T3 (ja)
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GR3025263T3 (en) 1998-02-27
DE69034049D1 (de) 2003-04-17
ATE234052T1 (de) 2003-03-15
ATE156992T1 (de) 1997-09-15
DE69031304T2 (de) 1997-12-18
DE69031304D1 (de) 1997-09-25
DK0437121T3 (da) 1998-04-06
EP0437121A2 (fr) 1991-07-17
EP0771549B1 (fr) 2003-02-26
EP0437121A3 (en) 1991-11-06
EP0437121B1 (fr) 1997-08-20
DE69034045T2 (de) 2004-03-04
ATE233072T1 (de) 2003-03-15
EP0771549A3 (fr) 1997-07-30
ES2104595T3 (es) 1997-10-16
EP0771550A3 (fr) 1997-08-20
EP0771550B1 (fr) 2003-03-12
JPH04126161A (ja) 1992-04-27
DE69034045D1 (de) 2003-04-03
EP0771549A2 (fr) 1997-05-07
FR2655533A1 (fr) 1991-06-14
DE69034049T2 (de) 2003-12-11
EP0771550A2 (fr) 1997-05-07
CA2029280A1 (en) 1991-06-14
CA2029280C (en) 2000-11-14

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