WO2015135520A1 - Procédé de fabrication d'un produit médical visualisable sous ultrasons et produit médical - Google Patents

Procédé de fabrication d'un produit médical visualisable sous ultrasons et produit médical Download PDF

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Publication number
WO2015135520A1
WO2015135520A1 PCT/DE2015/000108 DE2015000108W WO2015135520A1 WO 2015135520 A1 WO2015135520 A1 WO 2015135520A1 DE 2015000108 W DE2015000108 W DE 2015000108W WO 2015135520 A1 WO2015135520 A1 WO 2015135520A1
Authority
WO
WIPO (PCT)
Prior art keywords
medical product
lines
surface structure
cannula
cylindrical
Prior art date
Application number
PCT/DE2015/000108
Other languages
German (de)
English (en)
Inventor
Rudolf GLA
Original Assignee
Injecta Gmbh
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 Injecta Gmbh filed Critical Injecta Gmbh
Publication of WO2015135520A1 publication Critical patent/WO2015135520A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
    • A61B10/02—Instruments for taking cell samples or for biopsy
    • A61B10/0233—Pointed or sharp biopsy instruments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00526—Methods of manufacturing
    • 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
    • A61B2090/3925—Markers, e.g. radio-opaque or breast lesions markers ultrasonic

Definitions

  • the invention relates to a method for producing a visualized under ultrasound medical product and a medical product, in particular an insertable into the body tissue of a patient cannula, z.
  • a biopsy cannula or a stylet wire wherein the medical product is formed on at least a portion with an ultrasonic wave reflecting surface structure, which reveals the location of the medical product in the body.
  • Medical products of the type mentioned are used for the treatment of patients, for example in the form of a biopsy cannula or a Mandrindrahtes, which serves as an aid for introducing a biopsy cannula or an endoscopic instrument.
  • the reflective surface structures enabling the location and / or orientation of the medical product in the patient's body are produced by lasers, by chemical methods such as etching or by engraving, scoring or cutting, as has become known from EP 1 185 200 B 1.
  • CONFIRMATION COPY Furthermore, it is also known in the art to introduce structures by sandblasting in the surface of medical products.
  • the invention is based on the object by a method and a medical product to improve the visibility of a medical product of the type described above under ultrasound observation on.
  • This object is achieved by a method according to the invention in that the reflective surface structure is pressed by chipless knurling.
  • a diametric enlargement and thus a particularly good, concise surface structure can be achieved by means of a chipless knurling method with clearly distinct boundary lines or grooves compared with the non-indented surfaces, which are raised by the enlarged diameter, as a result of which the reflection of the ultrasonic beam is improved.
  • the surface structure achieved by the knurl pressing according to the invention in this case consists of elements in the form of sharply outlined and delimited projections, so that the deeper due to the projections formed border lines or grooves with respect to the surface of the medical product provide increased reflectivity for ultrasound. This allows an even more accurate location or identification of the position of the medical product in the patient's body.
  • a cylindrical medical product according to the invention is characterized in that the medical product has a knurled surface on at least part of its length as a structure.
  • the knurled surface is advantageously produced by knurling by means of a molding tool, for example a knurling wheel.
  • a defined pattern or a structure existing by the boundary lines or embossed grooves of enclosed elements by means of chipless pressure forming in the medical product, for example a biopsy cannula, impressed, wherein the cannula is guided on a mandrel and the pattern or the structure on the surface with the mold by means of feed and pressure is generated.
  • the medical products are preferably made of non-corroding stainless steel, at the same time a high wear resistance and a clean, bright and thus highly reflective surface.
  • the knurled surface can consist of lines or grooves distributed over the circumference at a distance from one another.
  • the knurled surface can consist of lines crossing at angles of ⁇ 90 °.
  • intersecting lines for example, a surface structure is formed with diamond-shaped elements, which represents an increased reflectivity for ultrasound due to the numerous lines or grooves bounded by the elements of the surface structure.
  • each other lines may have a sawtooth, a corrugated, or a rectangular line profile.
  • Figure 1 is a partial view of a medical product in the form of a cannula with a knurl of intersecting lines as a surface structure.
  • Fig. 2 is a partial view as in Figure 1, in contrast, with a knurl of circumferential, non-intersecting lines as a surface structure.
  • Fig. 3 different shapes of the lines or surface structures.
  • FIGS. 1 and 2 each show, in a partial view, medical products in the form of cannulas 1 and 2 insertable in the body tissue of a patient.
  • the outer surface 3 of the cannulas 1, 2 is each provided with an ultrasound wave reflecting surface structure 4, 5.
  • the reflecting surface structures 4, 5 are impressed by non-cutting knurling by means of a knurling tool, for example a knurling wheel, into the outer surfaces 3 of the cannulas 1, 2, preferably made of stainless steel.
  • a knurling tool for example a knurling wheel
  • the embossed surface structure 4 of the cannula 1 consists of FIG. 1 of intersecting lines 6, so that between the lines 6 diamond-shaped elements 7 are formed, which protrude from the lines 6 and are raised. As a result, an increased reflectivity of the structure formed by the diamond-shaped elements 7 is achieved.
  • the embossed surface structure 5 of the cannula 2 consists, according to FIG. 2, of sawtooth-like lines 8 extending over the length of the cannula 2 and circumferentially spaced apart, so that triangular elements 9 projecting in each case between the sawtooth-like lines 8 with respect to the lines 8 are formed.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medical Informatics (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Pathology (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)

Abstract

Procédé de fabrication d'un produit médical (1, 2) cylindrique visualisable sous ultrasons, et produit médical, en particulier d'une canule (1, 2) pouvant être introduite dans le tissu corporel d'un patient, p. ex. une canule de biopsie ou un mandrin, ledit produit médical (1, 2) étant pourvu d'une structure de surface (4, 5) réfléchissant les ondes ultrasonores et permettant de repérer la position du produit médical (1, 2) dans le corps du patient, ladite structure de surface étant formée sur au moins une partie de la longueur du dispositif. L'invention a pour but de fournir un procédé et un produit médical permettant d'améliorer la visibilité du produit médical lors de l'observation par ultrasons. Ce but est atteint par le formage en creux de la structure de surface réfléchissante (4, 5), par moletage sans enlèvement de copeaux.
PCT/DE2015/000108 2014-03-12 2015-03-11 Procédé de fabrication d'un produit médical visualisable sous ultrasons et produit médical WO2015135520A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014204534 2014-03-12
DE102014204534.7 2014-03-12

Publications (1)

Publication Number Publication Date
WO2015135520A1 true WO2015135520A1 (fr) 2015-09-17

Family

ID=52875355

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2015/000108 WO2015135520A1 (fr) 2014-03-12 2015-03-11 Procédé de fabrication d'un produit médical visualisable sous ultrasons et produit médical

Country Status (1)

Country Link
WO (1) WO2015135520A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020175995A1 (fr) * 2019-02-28 2020-09-03 Encapson B.V. Ensemble gaine ayant une structure échogène

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5490521A (en) * 1993-08-31 1996-02-13 Medtronic, Inc. Ultrasound biopsy needle
JP2006101915A (ja) * 2004-09-30 2006-04-20 Sumitomo Bakelite Co Ltd 穿刺針
EP1185200B1 (fr) 1999-06-05 2008-01-09 Wilson-Cook Medical Inc. Indices destinés à un dispositif médical endoscopique
WO2011075380A1 (fr) * 2009-12-18 2011-06-23 Wilson-Cook Medical Inc. Système et procédé de déploiement de repères
US20120059308A1 (en) * 2010-09-07 2012-03-08 The Washington University Peripheral nerve block catheter
US20120289985A1 (en) * 2010-07-30 2012-11-15 Olympus Medical Systems Corp. Medical instrument
EP2620111A2 (fr) * 2012-01-25 2013-07-31 Cook Medical Technologies LLC Dispositif médical échogénique

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5490521A (en) * 1993-08-31 1996-02-13 Medtronic, Inc. Ultrasound biopsy needle
EP1185200B1 (fr) 1999-06-05 2008-01-09 Wilson-Cook Medical Inc. Indices destinés à un dispositif médical endoscopique
JP2006101915A (ja) * 2004-09-30 2006-04-20 Sumitomo Bakelite Co Ltd 穿刺針
WO2011075380A1 (fr) * 2009-12-18 2011-06-23 Wilson-Cook Medical Inc. Système et procédé de déploiement de repères
US20120289985A1 (en) * 2010-07-30 2012-11-15 Olympus Medical Systems Corp. Medical instrument
US20120059308A1 (en) * 2010-09-07 2012-03-08 The Washington University Peripheral nerve block catheter
EP2620111A2 (fr) * 2012-01-25 2013-07-31 Cook Medical Technologies LLC Dispositif médical échogénique

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020175995A1 (fr) * 2019-02-28 2020-09-03 Encapson B.V. Ensemble gaine ayant une structure échogène
NL2022656B1 (en) * 2019-02-28 2020-09-08 Encapson B V Sheath assembly having an echogenic structure

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