WO2013074036A1 - Composant de cathéter - Google Patents

Composant de cathéter Download PDF

Info

Publication number
WO2013074036A1
WO2013074036A1 PCT/SE2012/051266 SE2012051266W WO2013074036A1 WO 2013074036 A1 WO2013074036 A1 WO 2013074036A1 SE 2012051266 W SE2012051266 W SE 2012051266W WO 2013074036 A1 WO2013074036 A1 WO 2013074036A1
Authority
WO
WIPO (PCT)
Prior art keywords
middle section
catheter component
component according
end portion
catheter
Prior art date
Application number
PCT/SE2012/051266
Other languages
English (en)
Inventor
Bengt KÄLLBÄCK
Malin Thomsen
Tiberiu BAGAIAN
Original Assignee
Cathprint Ab
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 Cathprint Ab filed Critical Cathprint Ab
Publication of WO2013074036A1 publication Critical patent/WO2013074036A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A61B5/053—Measuring electrical impedance or conductance of a portion of the body
    • A61B5/0538—Measuring electrical impedance or conductance of a portion of the body invasively, e.g. using a catheter
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00064—Constructional details of the endoscope body
    • A61B1/00071—Insertion part of the endoscope body
    • A61B1/0008—Insertion part of the endoscope body characterised by distal tip features
    • A61B1/00087—Tools
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
    • A61B5/6847—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive mounted on an invasive device
    • A61B5/6852—Catheters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/0009—Making of catheters or other medical or surgical tubes
    • A61M25/0012—Making of catheters or other medical or surgical tubes with embedded structures, e.g. coils, braids, meshes, strands or radiopaque coils
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0277—Bendability or stretchability details
    • H05K1/028—Bending or folding regions of flexible printed circuits

Definitions

  • the present invention relates to improved catheter components that generally simplifies catheter or endoscope production.
  • Complex medical catheters and endoscopes at the distal end typically include sensors, other electronics or opto-components which are connected with thin wires to a connector in the instrument's proximal end.
  • Manufacture of these instruments is often based on a flexible rod or extrusion with a circular cross-section with a length of normally 0.1 - 3 meters and containing one or more longitudinal cavities or lumens.
  • Thin wires are introduced in one of the lumens and joined mechanically and electrically to a carrier for sensors or other electronics at the distal end and with the connector at the proximal end. Production in this manner is a time consuming procedure that also can cause problems with production yields since the diameter of the lumen is in the order of 1 mm, and the carrier for the components of is in the order of a few mm 2 .
  • Catheters with sensors often comprise a number of electrical conductors and a practical way to manufacture such a catheter is to produce an elongated, flexible circuit board where the etched copper tracks are the conductors.
  • the circuit board is rolled and secured to a cylindrical element with gluing or in other ways.
  • Connectors on the other hand, are often designed to be fitted against a flat series of contact elements and electronic components are most suitably soldered and glued on a flat PCB. It is therefore difficult to effectively combine conductors in a component produced in this manner, electronic components and connectors.
  • the purpose of the present invention is to provide a catheter component that maintains the advantageously simple manufacturing processes and yet is easy to combine with other electronic components and connectors in the distal and proximal ends, respectively, and a middle circular section comprising conductors. Such a component would highly simplify manufacture of catheters and endoscopes. . Summary of the Invention In the context of the present invention the term "catheter component” shall be interpreted as a component to be inserted into the lumen of a catheter or an endoscope, or a similar invasive device.
  • the present invention is generally directed to a longitudinally extended generally tube shaped catheter component which is made from a single piece of flexible material that is generally flat and sheet formed.
  • the material is preferably provided with electrically conductive lines or layers, such as a printed circuit board which will become part of the operative functionalities of a catheter or an endoscope, or a similar invasive device to be inserted into the human body.
  • a catheter component generally comprises an elongated, flexible middle section with circular cross-sectional area formed from rolling and fastening together a central portion of said flexible material and two substantially flat end portions.
  • the middle section can generally be formed with different technologies, of which one suitable is disclosed in US
  • the generally described catheter components have at least one flat end portion which is capable of establishing contact between the conductive lines or layers and electronic components or connectors; and preferably at least one flat end portion is a connector.
  • the flat end portions of the catheter components can be dimensioned differently for different purposes.
  • at least one flat end portion has a width substantially exceeding the diameter of the middle section.
  • at least one flat end portion has a width not exceeding the diameter of the middle section. It may, for example be an advantageous embodiment of the invention to dimension the distal flat end portion with a width not exceeding the diameter of the middle section, while the proximal flat end portion has a width substantially exceeding the middle section diameter in order to establish convenient connections with any auxiliary equipment.
  • the catheter components can have at least one neck portion bridging the middle section and at least one flat end portion, wherein the neck portion is dimensioned so the at least one end portion substantially retains its flatness when rolling and fastening together the middle section.
  • the single-piece flexible sheet formed material used for forming the catheter components is provided with the three different dimensions, a first for the flat end portions, a second for the neck portions and a third for the elongated middle section to be rolled together for establishing the tube shaped part of the catheter component.
  • the neck portion may have the smallest, or narrowest dimension in order to allow the end portions to remain flat, or essentially flat, when forming the middle section.
  • the catheter component has an oblong solid core inside the middle section.
  • the middle section may be formed around the solid core and it may be surrounded by a shrink tubing which easily may be slipped over the catheter before the shrink tubing shrinks down so that it grips the middle section.
  • the catheter component has a diameter substantially less than the diameter of the middle section and has a longitudinal extension extending beyond a proximal end or a distal end.
  • the thin core can be used to insert and push the catheter component all the way through a lumen of the catheter or endoscope.
  • the width of the flat end portion at the distal end is, in this case, slightly less than the diameter of the lumen which also makes placement easier.
  • the flat section has to be manually curled before pushing the component into the lumen and the flat section is pushed all the way through to the other end where it resumes its flat shape.
  • the so described core can be made detachable, removable or simply adapted to be cut from the catheter component, once the catheter or endoscope is assembled.
  • the invention also extends to a method of assembling a catheter or endoscope, by providing catheter component as described, operating with a thin core member as described and displacing it and securing it into the lumen of tubular catheter or endoscope body, with for example a distal end as described.
  • Figure 1 shows a flat flexible printed circuit board
  • Figure 2 shows the flexible printed circuit board with a core
  • Figure 3 shows the flexible printed circuit board rolled around the core
  • Figure 4 shows the coiled flexible printed circuit board with a heat-shrink tubing.
  • Figure 5 shows a flexible printed circuit board rolled around a thin core with a. Flat distal and proximal end, where the flat proximal end is a connector
  • Figure 6 shows how the catheter component of the invention is used for manufacture of a catheter or an endoscope
  • Figure 1 shows a flat flexible circuit board with a central portion (1) and two end portions (2), (3).
  • the middle section (1) is formed as an elongated rectangular section with five
  • the two end parts are rectangular and connected to the center portion with narrower necks, (5, 6).
  • One end portion has electrical components mounted and they are connected to the longitudinal conductors (4) via conductors on the narrow neck portion (5).
  • the second end portion (3) forms a connector with five metal plates that can be pushed into a receiving connector.
  • Figure 2 shows the flexible circuit board with a cylindrical core (8) positioned along the middle section of the circuit board.
  • the core is made of a flexible material and has a circumference smaller than the circuit board middle section width, so that the central portion can be wound around the core with a certain space for adhesive to make it adhere to the surface of the core.
  • Figure 3 shows the middle portion of the flexible circuit board (1) rolled around the core (8).
  • the flexible circuit board end sections remain flat even though the middle section is curled.
  • the neck portions are at one end bent as they are forced to follow middle section's curvature, but the bending becomes less farther from the center section.
  • the end portions are wider than the necks, they are only very little influenced of that the middle part is bent and they are close to perfectly flat over their entire surfaces.
  • Figure 4 shows the rolled flexible printed circuit board with a heat shrink tube (9) fed over the PCB middle section, which is then shrunk so that it just reaches around middle section and keeps this together. Before the shrink tubing shrinks, its inner diameter is so large that the circuit board end portions can be threaded through the shrink tubing without bending.
  • the cylindrical, flexible multi- conductor with flat elements in the ends can be used as a part of a catheter or endoscope.
  • the flat end portion which in the described embodiment has electrical components may alternatively comprise pads for connection by soldering or wire bonding to devices attached to the flat distal portion.
  • the flat proximal portion which constitutes a connector may alternatively include solder pads for mounting and electrically connecting a separate connector.
  • the middle part which in the described embodiment, is enclosed by a heat-shrink tubing, can alternatively be filled with an elastic adhesive which cures and holds it together or be joined together in another way.
  • Figure 5 shows another preferred embodiment with a core (10) significantly thinner than the middle section diameter.
  • the core extends outside the middle section and is slightly longer than the length of the middle section.
  • the width of the distal end is equal to the lumen diameter and the width of the distal planar end portion does not exceed the middle section of the catheter component, while the proximal planar end portion has a width exceeding the middle section diameter.
  • the other option is shown in figure 5b. If a double sided flexible circuit board is used it is possible to connect the conductor lines to ring contacts (12) on the outside of the rolled section, which in this case also includes the entire proximal end.
  • a housing (13 ) is normally added and connected to the tubular body (14 ) to complete the catheter or endoscope as depicted in Figure 6.
  • the catheter can include further components in the lumen (15) exemplified by a delivery tube (16) through which a therapeutically active can be administered.
  • the housing can contain holes fitted to a camera lens and light sources.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Biophysics (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Pathology (AREA)
  • Molecular Biology (AREA)
  • Medical Informatics (AREA)
  • Physics & Mathematics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Pulmonology (AREA)
  • Anesthesiology (AREA)
  • Hematology (AREA)
  • Optics & Photonics (AREA)
  • Endoscopes (AREA)

Abstract

L'invention concerne un composant de cathéter réalisé à partir d'un seul morceau de matériau souple ayant au moins une couche d'une ligne ou couche conductrice de l'électricité sur sa surface, comprenant une section intermédiaire, souple, allongée (1) ayant une surface en coupe transversale circulaire formée par enroulement et fixation plus serrée d'une partie centrale dudit matériau souple ; et deux parties d'extrémité sensiblement plates (2), (3).
PCT/SE2012/051266 2011-11-16 2012-11-16 Composant de cathéter WO2013074036A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE1100853 2011-11-16
SE1100853-9 2011-11-16

Publications (1)

Publication Number Publication Date
WO2013074036A1 true WO2013074036A1 (fr) 2013-05-23

Family

ID=48429966

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2012/051266 WO2013074036A1 (fr) 2011-11-16 2012-11-16 Composant de cathéter

Country Status (1)

Country Link
WO (1) WO2013074036A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015195023A1 (fr) * 2014-06-19 2015-12-23 Cathprint Ab Ensemble conducteur comprenant une enveloppe externe tubulaire élastique
US10178960B2 (en) 2013-02-11 2019-01-15 St. Jude Medical, Atrial Fibrillation Division, Inc. Printed electrode catheter
WO2019211376A1 (fr) 2018-05-02 2019-11-07 Berner Fachhochschule, Technik Und Informatik Appareil pour fournir des informations électrocardiographiques et en particulier des informations d'arythmie
US10548671B2 (en) 2014-01-28 2020-02-04 St. Jude Medical International Holding S.á r.l. Medical device with a packaged electronic subassembly and method for fabricating the same
EP3791783A1 (fr) * 2019-09-10 2021-03-17 Carl Freudenberg KG Cathéter pourvu de carte à circuit imprimé extensible
CN112930028A (zh) * 2021-01-28 2021-06-08 优尔爱(常州)医疗科技有限公司 一种具有延展性的柔性电极及制备方法
US11116449B2 (en) 2014-01-28 2021-09-14 St. Jude Medical, Cardiology Division, Inc. Catheter shaft with electrically-conductive traces
WO2023202934A1 (fr) * 2022-04-20 2023-10-26 Koninklijke Philips N.V. Circuit flexible autour d'un fil central dans un dispositif intraluminal, et dispositifs, systèmes et méthodes associés
WO2023224522A1 (fr) * 2022-05-16 2023-11-23 Cathprint Ab Carte de circuit imprimé flexible conçue pour un cathéter avec une direction de courbure préférée

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0779059A1 (fr) * 1995-12-13 1997-06-18 Cordis Corporation Cathéter comportant un ensemble d'électrodes en forme de plaque
EP1188976A2 (fr) * 2000-09-13 2002-03-20 Fuji Photo Optical Co., Ltd. Tube souple et son procédé de fabrication
US20090143651A1 (en) * 2006-06-01 2009-06-04 Bengt Kallback Device for Invasive Use
WO2011031201A1 (fr) * 2009-09-10 2011-03-17 Cathprint Ab Support de conducteur souple pour cathéter et cathéter équipé d'un support de conducteur

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0779059A1 (fr) * 1995-12-13 1997-06-18 Cordis Corporation Cathéter comportant un ensemble d'électrodes en forme de plaque
EP1188976A2 (fr) * 2000-09-13 2002-03-20 Fuji Photo Optical Co., Ltd. Tube souple et son procédé de fabrication
US20090143651A1 (en) * 2006-06-01 2009-06-04 Bengt Kallback Device for Invasive Use
WO2011031201A1 (fr) * 2009-09-10 2011-03-17 Cathprint Ab Support de conducteur souple pour cathéter et cathéter équipé d'un support de conducteur

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10178960B2 (en) 2013-02-11 2019-01-15 St. Jude Medical, Atrial Fibrillation Division, Inc. Printed electrode catheter
US11559236B2 (en) 2013-02-11 2023-01-24 St. Jude Medical, Atrial Fibrillation Division, Inc. Printed electrode catheter
US11116449B2 (en) 2014-01-28 2021-09-14 St. Jude Medical, Cardiology Division, Inc. Catheter shaft with electrically-conductive traces
US10548671B2 (en) 2014-01-28 2020-02-04 St. Jude Medical International Holding S.á r.l. Medical device with a packaged electronic subassembly and method for fabricating the same
EP3157606A4 (fr) * 2014-06-19 2018-04-04 Cathprint AB Ensemble conducteur comprenant une enveloppe externe tubulaire élastique
WO2015195023A1 (fr) * 2014-06-19 2015-12-23 Cathprint Ab Ensemble conducteur comprenant une enveloppe externe tubulaire élastique
US11491305B2 (en) 2018-05-02 2022-11-08 Berner Fachhochschule, Technik Und Informatik Method for producing a catheter comprising a FPCB
WO2019211376A1 (fr) 2018-05-02 2019-11-07 Berner Fachhochschule, Technik Und Informatik Appareil pour fournir des informations électrocardiographiques et en particulier des informations d'arythmie
EP3797678A1 (fr) * 2019-09-10 2021-03-31 Freudenberg SE Cathéter pourvu de carte à circuit imprimé extensible
EP3791783A1 (fr) * 2019-09-10 2021-03-17 Carl Freudenberg KG Cathéter pourvu de carte à circuit imprimé extensible
CN112930028A (zh) * 2021-01-28 2021-06-08 优尔爱(常州)医疗科技有限公司 一种具有延展性的柔性电极及制备方法
WO2023202934A1 (fr) * 2022-04-20 2023-10-26 Koninklijke Philips N.V. Circuit flexible autour d'un fil central dans un dispositif intraluminal, et dispositifs, systèmes et méthodes associés
WO2023224522A1 (fr) * 2022-05-16 2023-11-23 Cathprint Ab Carte de circuit imprimé flexible conçue pour un cathéter avec une direction de courbure préférée
SE2230148A1 (en) * 2022-05-16 2023-11-28 Kaellbaeck Bengt Flexible PCB adapted for catheter with preferred direction of bending

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