MX2010007885A - Metodo para fabricar un cateter de lumen multiple que tiene seccion de punta separada. - Google Patents

Metodo para fabricar un cateter de lumen multiple que tiene seccion de punta separada.

Info

Publication number
MX2010007885A
MX2010007885A MX2010007885A MX2010007885A MX2010007885A MX 2010007885 A MX2010007885 A MX 2010007885A MX 2010007885 A MX2010007885 A MX 2010007885A MX 2010007885 A MX2010007885 A MX 2010007885A MX 2010007885 A MX2010007885 A MX 2010007885A
Authority
MX
Mexico
Prior art keywords
lumen
distal
indication
tip
catheter body
Prior art date
Application number
MX2010007885A
Other languages
English (en)
Inventor
Michael R Sansoucy
Original Assignee
Tyco Healthcare
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tyco Healthcare filed Critical Tyco Healthcare
Publication of MX2010007885A publication Critical patent/MX2010007885A/es

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M25/00Catheters; Hollow probes
    • A61M25/0009Making of catheters or other medical or surgical tubes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/36Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
    • A61M1/3621Extra-corporeal blood circuits
    • A61M1/3653Interfaces between patient blood circulation and extra-corporal blood circuit
    • A61M1/3659Cannulae pertaining to extracorporeal circulation
    • A61M1/3661Cannulae pertaining to extracorporeal circulation for haemodialysis
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M25/00Catheters; Hollow probes
    • A61M25/0009Making of catheters or other medical or surgical tubes
    • A61M25/001Forming the tip of a catheter, e.g. bevelling process, join or taper
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M25/00Catheters; Hollow probes
    • A61M25/0021Catheters; Hollow probes characterised by the form of the tubing
    • A61M25/0023Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
    • A61M25/0026Multi-lumen catheters with stationary elements
    • A61M25/003Multi-lumen catheters with stationary elements characterized by features relating to least one lumen located at the distal part of the catheter, e.g. filters, plugs or valves
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M25/00Catheters; Hollow probes
    • A61M25/0067Catheters; Hollow probes characterised by the distal end, e.g. tips
    • A61M25/0068Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
    • A61M25/0069Tip not integral with tube
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001Combinations of extrusion moulding with other shaping operations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/11Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels comprising two or more partially or fully enclosed cavities, e.g. honeycomb-shaped
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11Joint 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
    • B29C66/112Single lapped joints
    • B29C66/1122Single lap to lap joints, i.e. overlap joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
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    • B29C66/11Joint 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
    • B29C66/114Single butt joints
    • B29C66/1142Single butt to butt joints
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    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General 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
    • B29C66/51Joining 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
    • B29C66/52Joining tubular articles, bars or profiled elements
    • B29C66/522Joining tubular articles
    • B29C66/5221Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General 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
    • B29C66/51Joining 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
    • B29C66/52Joining tubular articles, bars or profiled elements
    • B29C66/522Joining tubular articles
    • B29C66/5224Joining tubular articles for forming fork-shaped connections, e.g. for making Y-shaped pieces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General 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
    • B29C66/51Joining 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
    • B29C66/52Joining tubular articles, bars or profiled elements
    • B29C66/522Joining tubular articles
    • B29C66/5227Joining tubular articles for forming multi-tubular articles by longitudinally joining elementary tubular articles wall-to-wall (e.g. joining the wall of a first tubular article to the wall of a second tubular article) or for forming multilayer tubular articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General 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
    • B29C66/63Internally supporting the article during joining
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M25/00Catheters; Hollow probes
    • A61M25/0021Catheters; Hollow probes characterised by the form of the tubing
    • A61M25/0023Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
    • A61M25/0026Multi-lumen catheters with stationary elements
    • A61M25/003Multi-lumen catheters with stationary elements characterized by features relating to least one lumen located at the distal part of the catheter, e.g. filters, plugs or valves
    • A61M2025/0031Multi-lumen catheters with stationary elements characterized by features relating to least one lumen located at the distal part of the catheter, e.g. filters, plugs or valves characterized by lumina for withdrawing or delivering, i.e. used for extracorporeal circuit treatment
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M25/00Catheters; Hollow probes
    • A61M25/0021Catheters; Hollow probes characterised by the form of the tubing
    • A61M25/0023Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
    • A61M25/0026Multi-lumen catheters with stationary elements
    • A61M2025/0037Multi-lumen catheters with stationary elements characterized by lumina being arranged side-by-side
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M25/00Catheters; Hollow probes
    • A61M25/0067Catheters; Hollow probes characterised by the distal end, e.g. tips
    • A61M25/0068Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
    • A61M25/007Side holes, e.g. their profiles or arrangements; Provisions to keep side holes unblocked
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2793/00Shaping techniques involving a cutting or machining operation
    • B29C2793/0063Cutting longitudinally
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001Combinations of extrusion moulding with other shaping operations
    • B29C48/0017Combinations of extrusion moulding with other shaping operations combined with blow-moulding or thermoforming
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
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    • B29C48/0022Combinations of extrusion moulding with other shaping operations combined with cutting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/481Non-reactive adhesives, e.g. physically hardening adhesives
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/66Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by liberation of internal stresses, e.g. shrinking of one of the parts to be joined
    • B29C65/68Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by liberation of internal stresses, e.g. shrinking of one of the parts to be joined using auxiliary shrinkable elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General 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
    • B29C66/73General 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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/737General 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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined
    • B29C66/7371General 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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined oriented or heat-shrinkable
    • B29C66/73715General 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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined oriented or heat-shrinkable heat-shrinkable
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/753Medical equipment; Accessories therefor
    • B29L2031/7542Catheters
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10Methods of surface bonding and/or assembly therefor
    • Y10T156/1052Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y10T156/1056Perforating lamina
    • Y10T156/1057Subsequent to assembly of laminae
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49826Assembling or joining
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49826Assembling or joining
    • Y10T29/49863Assembling or joining with prestressing of part
    • Y10T29/49865Assembling or joining with prestressing of part by temperature differential [e.g., shrink fit]

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Public Health (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Pulmonology (AREA)
  • Biophysics (AREA)
  • Vascular Medicine (AREA)
  • Urology & Nephrology (AREA)
  • Cardiology (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

La presente descripción se relaciona con un método para fabricar un catéter en donde un cuerpo de catéter de lumen doble y por lo menos un miembro de punta distal se fabrican por separado y por lo menos un miembro de punta distal posteriormente se ensambla al cuerpo de catéter de lumen doble. Los componentes se pueden ensamblar utilizando un procedimiento de calentamiento o de manera alternativa utilizando adhesivos.

Description

DO PARA FABRICAR UN CATETER DE LUMEN MULTIPLE QU SECCION DE PUNTA SEPARADA CAMPO DE LA INVENCIÓN La presente descripción se relaciona con u elaborar un catéter de lumen múltiple cularmente, con un método para fabricar un ca múltiple que tiene una sección de punta separad ANTECEDENTES DE LA INVENCIÓN Los catéteres para suministrar y/o extraer o y/o desde el cuerpo son bien conocidos en la t eden utilizar para suministro de medicación, ex rina y tratamiento de sangre, por ejemplo hemod nombran algunos. Son bien conocidos los caté único y múltiple. Típicamente, los catéteres ut hemodiálisis son catéteres de lumen múltiple e Un problema asociado con los catéteres de umen múltiple es el potencial para recircula e desde el extremo distal del lumen venoso a tr mo distal del lumen arterial. En un esfue izar la recirculación de sangre, se han desa eres en los cuales las aberturas de lumen arter venoso están separadas lateralmente. Estos e izan la recirculación de sangre al desplazar la l de lumen arterial desde la abertura distal o .
Los catéteres se pueden fabricar utiliza sidad de técnicas diferentes que incluyen, por conformación, extrusión, moldeado por soplado, t ional y moldeado por inyección. No obsta cante de catéteres de lumen doble con s adas lateralmente o secciones de unta entes etapas: i) fabricar un cuerpo de catéter de lum tiene un extremo proximal y un extremo dista e un primer lumen y un segundo lumen, el c er de lumen doble define un primer eje longitudi ii) fabricar un primer miembro de punta di e una primera porción de lumen distal; y iii) ensamblar el primer miembro de punt el extremo distal de la porción de catéter de ma rimera porción de lumen distal está en comu a con el primer lumen.
En una modalidad, la etapa de ensamblado izar adhesivos para asegurar el primer miembro l al extremo distal del cuerpo de catéter . De manera alternativa, la etapa de ensamblado izar calor ara ase urar el rimer miembro En otra modalidad, el método incluye ad entes etapas : iv) fabricar un segundo miembro de punt efine una segunda porción de lumen distal, y v) ensamblar el segundo miembro de punt el extremo distal de la porción de catéter de ma egunda porción del lumen distal esté en comu a con el segundo lumen del cuerpo de catéter .
Como se describe en lo anterior, las e blado pueden incluir utilizar adhesivos o ca rar el primero y segundo miembros de punta dis emo distal del cuerpo de catéter de lumen doble.
En una modalidad, el primer miembro de punt e un segundo eje longitudinal y el segundo mí a distal define un tercer e e lon itudinal la ambos colocados en un ángulo en relación al pr itudínal .
BREVE DESCRIPCIÓN DE LAS FIGURAS En la presente se describen diversas mod método descrito actualmente para la fabricació ter de lumen múltiple que tiene una configur a separada, con referencia a las figuras, en las La figura 1 es una vista en perspectiva e el extremo distal del catéter de lumen orado utilizando el método de fabricación a1mente ; la figura 2 es una vista en sección tra da a lo largo de las líneas de sección 2-ra 1 ; la figura 3 es una vista superior del ca n múlti le ue se muestra en la fi ura 1 dur múltiple que se muestra en la figura 1 dur da modalidad del método de fabricación lmente con una sección de punta separada del cu er .
DESCRIPCIÓN DETALLADA DE LA INVENCIÓN Las modalidades del método descrito act la elaboración de catéteres de lumen múltiple c ida ahora se describirá con detalle con referene as en donde números de referencia similares ntos idénticos o correspondientes en cada una sas vistas.
Las modalidades ejemplares del catéter des resente se presentan en términos de catéteres la administración de fluidos (extracción o intro elación al cuerpo del sujeto y, de manera más par érminos de un catéter ara hemodiálisis . No obs er se puede utilizar para administración de como, por ejemplo, medicación, solución salina, rales, sangre y orina.
En la descripción que sigue, el término "p asero" se referirá a la porción de una estructur ntra más cercana al médico mientras que el al" o "delantero" se referirá a una porción da del médico. Como se utiliza en la prese no " sujeto" se refiere a un paciente humano l . El término "médico" se refiere a un doctor, e ra persona relacionada con la. salud y puede nal de soporte .
La figura 1 y la figura 2 ilustran el catét múltiple el cual se fabrica utilizando el m cación descrito en lo siguiente. El catéter 10 uerpo 12 de catéter alargado el cual define u nectada a lo largo del eje longitudinal del ca a que los miembros de punta se pueden mover se en relación entre sí. El primer miembro 20a e un eje 24 longitudinal y el segundo miembro define un segundo eje 26 longitudinal. L tudinales 24 y 26 definen un ángulo ß mayor de 0 a modalidad, ß es mayor que o igual a aproximad s y en otra modalidad ß es mayor que o imadamente 10 grados. En la modalidad ilustrada longitudinal se alinea sustancialmente con tudinal definido por el cuerpo 12 de caté nte, se considera que tanto el primero como el longitudinales 24 y 26 pueden estar des armente del eje longitudinal del cuerpo 12 de , por ejemplo, la figura 5.
Cada miembro de unta 20a 20b define un tiene una longitud que excede la longitud del unta 20a entre aproximadamente 5 mm o mayor. D nativa, las longitudes de los miembros de punt uede ser sustancialmente la misma.
La figura 3 ilustra el catéter 10 dur dimiento de manufactura descrito actualmente, ibe en lo anterior, el catéter 10 incluye un c atéter que tiene un extremo 12a distal y una se nta separada que tiene un primer miembro 20a de egundo miembro 20b de punta. El cuerpo 12 de e el primero y segundo lúmenes 14a y 14b y un p do miembros de punta 20a y 20b que definen los unta 28 y 30. Durante el método de fabrica er 10, el cuerpo 12 de catéter de lumen doble, e ro 20a de punta y el segundo miembro 20b de rman independientemente. Esto se uede llevar a que el lumen 28 de punta del miembro 20a de pu ado de manera fluida al primer lumen 14a del c atéter. Después, el segundo miembro 20b de p bla al extremo 12a distal del cuerpo 12 de ca doble de manera tal que el lumen 30 de punta s anera fluida al segundo lumen 14b del cuerp er. El primero y segundo miembros de punta 20a n ensamblar al cuerpo 12 de catéter de lume zando calor, por ejemplo mediante soldadura, par o una unión covalente de las resinas termoplást o 12 de catéter y del primero y segundo mie 20a y 20b. De manera alternativa, el primero y ros de punta 20a y 20b se pueden ensamblar al téter utilizando un adhesivo, por ejemplo una su lada a partir de por lo menos un solvente y por terial ca az de unirse tanto a los miembros de - li ¬ uante- mayor sea el área superficial mayor será l ión .
Como se ilustra en la figura 4, en una mo rimer miembro 20a de punta se ensambla al cuer er de manera que el eje longitudinal 24 del míe nta está sustancialmente paralelo al eje longitu cuerpo 12 de catéter y el segundo miembro 20a de bla al cuerpo 12 de catéter de manera que itudinal 26 del miembro 20b de punta se col ir un ángulo ß el cual es mayor de 0 grados con je 24 longitudinal del miembro 20a de punta, idad, el ángulo ß es de aproximadamente 5 r. En otra modalidad, el ángulo ß es de aproxi rados o mayor .
En una modalidad alternativa del método almente ue se muestra en la fi ura 5 cada un y 120b están colocados simétricamente alrededor tudinal del cuerpo 112 de catéter. En esta mo uiera del lumen 120a o 120b del catéter 10 onar como el lumen arterial o el lumen venoso du dimiento de hemodiálisis .
Con referencia a la figura 6, en una m nativa del método de fabricación descrito actu uerpo 212 de catéter de lumen doble del catéter ca para incluir un miembro 220a de punta y un de punta se conforma por separado. Como se des nterior, el cuerpo 212 de catéter y el miembr se pueden conformar utilizando una divers eas de fabricación que incluyen un procedim sión. Posteriormente, el miembro 220b de p bla al extremo 212a distal del cuerpo 212 de izando calentamiento o adhesivos, de manera u , etc.)/ para formar el miembro 220b de pu ro 220a de punta se conforma utilizando un proce trusión separado y después se une térmicamente a e catéter. El procedimiento de unión térmica se sertar mandriles, los cuales en la presente se miembros longitudinales capaces de acoplarse de el cuerpo 212 de catéter como los miembros y 220b y que puede resistir la energía térmic ntra durante el procedimiento de unión térm mación significativa. Con un primer mandril inse tremo 212a distal y que se extiende dentro del de punta y un segundo mandril que se extiende o 212 de catéter en el miembro 220a de punta, ar energía térmica al montaje para unir eficazm nentes uniéndolos . La energía térmica se puede ea mediante la utilización de un troquel o med efectivamente ambos miembros de punta 220a y mandriles en el mismo. Este segundo imiento se puede extender después hasta por lo m on del cuerpo 212 de catéter. La energía térmica ede aplicar al segundo tubo de encogimiento para ro 220b de punta al extremo 212,a distal. Se ha la tubería de encogimiento se seleccionará de ma e una al material utilizado para el catéter, nas .
Como se ilustra en la figura 3 y en la figu ficie 250 de extremo distal del cuerpo 212 de ra 6) y/o el extremo proximal del miembro 50 ra 3) pueden estar en un ángulo o ahusados de ma uperficie distal del cuerpo de catéter 12, 2 ficie proximal del miembro de punta 20b, 22 cto para definir el ángulo ß deseado. El c o fluya dentro o desde el catéter 100. Los o ales 142 se pueden dispersar en cualquier confi entación alrededor de uno o ambos miembros de pu Ob. En una modalidad que se muestra en la figu cio lateral 142 se coloca sobre los miembros y 120b en una ubicación para reducir la probabi ión por posición. De manera más específica, un al 142 se coloca en cada uno de los miembros y 120b para orientarse al miembro de punta a minimizar cualquier probabilidad de oclusión por entes de tejido, por ejemplo ventas, tejido C , dentro de un paciente. Aunque en los o ales 142 se ilustran únicamente con respecto al los orificios laterales también se pueden inclui eres 10 y 200.
Aunque se han mostrado características esp car un catéter de lumen único con un lumen exp o se aplicable. Por lo tanto, la descripción ant considerarse como limitante sino simplemen lificaciones de las modalidades. Los experto ca tomarán en consideración otras modificacio s se encuentran dentro del alcance y espíritu ndicaciones anexas.
Se hace constar que con relación a esta f método conocido por la solicitante para llev ica la citada invención, es el que resulta cia nte descripción de la invención.

Claims (1)

  1. REIVINDICACIONES Habiéndose descrito la invención como a eclama como propiedad lo contenido en las si indicaciones : 1. Un método para fabricar un catéter iple que tiene una configuración de punta s cterizado porque comprende las siguientes etapa i) fabricar un cuerpo de catéter de lum tiene un extremo proximal y un extremo dista ne un primer lumen y un segundo lumen, el c ter de lumen doble define un primer eje longitu ii) fabricar un primer miembro de punt define una primera porción de lumen distal; y iii) ensamblar el primer miembro de punt el extremo distal del cuerpo catéter de lumen blado incluye utilizar calor para asegurar el ro de punta distal al extremo distal del er de lumen doble. 4. El método de conformidad c indicación 1, caracterizado porque el primer unta distal define un segundo eje longitudi la etapa de ensamblado incluye colocar el longitudinal del miembro de punta distal en u relación con el primer eje longitudinal del c ter de lumen doble, en donde el ángulo ß es ma os . 5. El método de conformidad c ndicación 4, caracterizado porque el ángulo imadamente 5 grados o mayor. 6. El método de conformidad c indicación 4, caracterizado porque el ángulo icación fluida con el segundo lumen del cu er de lumen doble. 8. El método de conformidad c indicación 7, caracterizado porque las eta blado incluyen utilizar adhesivos para aseg ro y segundo miembros de punta distal al l del cuerpo de catéter de lumen doble. . El método de conformidad c indicación 7, caracterizado porque las et blado incluyen utilizar calor para aseg ero y segundo miembros de punta distal al al del cuerpo de catéter de lumen doble. 10. El método de conformidad c indicación 7, caracterizado porque el primer unta distal define un segundo eje longitudin ndo miembro de punta distal define un ter ndicación 10, caracterizado porque el ángulo imadamente 10 grados o mayor. 13. El método de conformidad c indicación 10, caracterizado porque el segú itudinal está sustancialmente paralelo al pri itudinal . 14. El método de conformidad c indicación 10, caracterizado porque el se er ejes longitudinales están colocados en un á ción al primer eje longitudinal. 15. El método de conformidad c indicación 14, caracterizado porque el pr ndo miembros de punta son simétricos alrede er eje longitudinal. 16. El método de conformidad c indicación 14, caracterizado porque incluye a e un primer eje longitudinal; ii) separar una porción distal del cu er para definir un primer miembro de punta d tremo distal del cuerpo de catéter, el primer unta distal define una primera porción de lume omunicación fluida con el primer lumen del c ter ; iii) extruir un segundo miembro de punt efine una segunda porción de lumen distal; y iv) unir térmicamente el segundo mie a distal al extremo distal del cuerpo de cat ra que la segunda porción de lumen distal se el primer lumen del cuerpo de catéter. 18. El método de conformidad c indicación 17, caracterizado porque la etapa ica incluye colocar un primer tubo de enco ndicación 19, caracterizado porque la etapa d camente incluye colocar un primer mandril mo distal del primer lumen del cuerpo de caté ra porción de lumen distal, y colocar un il en el extremo distal del segundo lumen del atéter y la segunda porción de lumen distal a ar energía térmica al primero y segundo t imiento .
MX2010007885A 2009-07-20 2010-07-19 Metodo para fabricar un cateter de lumen multiple que tiene seccion de punta separada. MX2010007885A (es)

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US20110011525A1 (en) 2011-01-20
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