WO2016105252A2 - Ciseaux chirurgicaux - Google Patents

Ciseaux chirurgicaux Download PDF

Info

Publication number
WO2016105252A2
WO2016105252A2 PCT/RU2015/000925 RU2015000925W WO2016105252A2 WO 2016105252 A2 WO2016105252 A2 WO 2016105252A2 RU 2015000925 W RU2015000925 W RU 2015000925W WO 2016105252 A2 WO2016105252 A2 WO 2016105252A2
Authority
WO
WIPO (PCT)
Prior art keywords
cutting edge
surgical scissors
base
silicon carbide
scissors according
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.)
Ceased
Application number
PCT/RU2015/000925
Other languages
English (en)
Russian (ru)
Other versions
WO2016105252A3 (fr
Inventor
Юрий Иванович ПЕТРОВ
Валерий Михайлович ХНЫКОВ
Сергей Васильевич ЕРЕМЕЕВ
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of WO2016105252A2 publication Critical patent/WO2016105252A2/fr
Publication of WO2016105252A3 publication Critical patent/WO2016105252A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/32—Surgical cutting instruments

Definitions

  • the invention relates to medicine, namely to cutting surgical instruments, in particular to surgical scissors, and can be used for general and microsurgical operations, as well as in medical and biological research.
  • the objective of the invention is to remedy these disadvantages.
  • the technical result consists in expanding the technological capabilities of manufacturing a cutting edge, increasing wear resistance, chemical and thermal resistance, as well as providing the possibility of increasing contrast.
  • the problem is solved, and the technical result is achieved by the fact that for surgical scissors, including jaws with handles, the base and cutting edge, the base and cutting edge are made of bulk silicon carbide, which can be single-crystal or polycrystalline.
  • color centers are introduced into the crystal lattice of a single crystal.
  • a silicon carbide single crystal can have a cubic lattice of the ZS polytype or a hexagonal crystal lattice of 2H, 4H, 6H polytypes, and the cutting edge can have sequential sharpening angles of 5-40 ° and 40-85 °.
  • the jaws can also be made of a composite structure based on silicon carbide, silicon or silicon carbide polycrystalline structure.
  • FIG. 1 presents a General view of the proposed surgical scissors
  • FIG. 2 - a schematic representation of the sharpening angles of the cutting edge of the proposed surgical scissors.
  • Surgical scissors consist of jaws 1, base 2 and cutting edge 3.
  • the use in the design of the base, which can be independent of the jaw part, as well as the manufacture of it and the cutting edge of bulk silicon carbide, provides the use of multiple high-temperature heat treatment of the product that does not cause thermal stresses. The latter is due to the high thermal stability of the bulk structure of silicon carbide up to temperatures of 1000 ° C under repeated exposure.
  • the contrast of a medical instrument when exposed to an object in the operational process is determined by the selection of the necessary color scheme.
  • the latter is realized by creating the corresponding color centers in the structure of the silicon carbide crystal.
  • the cutting edge of the base of the scissors is a perfect cut. And in the area of influence of scissors on the object, a glow of a certain range of light waves is observed.
  • the selected sharpening angles of the cutting edge (Fig. 2) are the most optimal from the point of view of manufacturing technology and the use of surgical scissors in operating processes.
  • Surgical scissors consist of jaws with handles, a base and a cutting edge.
  • the base and cutting edge are made of a bulk single crystal of silicon carbide ZS polytype, and branches with handles are made of a composite structure of silicon carbide.
  • This device has high contrast and retains it after 100-fold treatments at 800 ° C. Bending strengths and microhardness are high: 500-600 MPa and 2200 GPa, respectively.
  • Surgical scissors consist of jaws with handles made of a composite SiC structure, a base and a cutting edge made of a SiC single crystal of polytype 6H.
  • the device withstands 100-fold heat treatments at temperatures of 800-100 ° C and maintains high contrast.
  • the bending strengths and microhardness also have high values and are respectively 800- 900 MPa and 2800 GPa.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)
  • Scissors And Nippers (AREA)

Abstract

L'invention appartient au domaine de la médecine et plus particulièrement des instruments chirurgicaux, notamment des ciseaux chirurgicaux ; elle peut s'utiliser pour effectuer des interventions d'ordre général ou à l'échelle microscopique ainsi qu'à des fins de recherche dans des examens médico-biologiques. Les ciseaux chirurgicaux comprennent des branches avec des poignées, une base et un bord de coupe, la base et le bord de coupe étant réalisés à partir de carbure de silicium expansé. L'invention permet d'élargir les capacités techniques de fabrication du bord de coupe, d'augmenter la résistance à l'usure ainsi que la capacité chimique et thermique.
PCT/RU2015/000925 2014-12-25 2015-12-24 Ciseaux chirurgicaux Ceased WO2016105252A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2014152868A RU2607280C2 (ru) 2014-12-25 2014-12-25 Хирургические ножницы
RU2014152868 2014-12-25

Publications (2)

Publication Number Publication Date
WO2016105252A2 true WO2016105252A2 (fr) 2016-06-30
WO2016105252A3 WO2016105252A3 (fr) 2016-08-04

Family

ID=56151605

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU2015/000925 Ceased WO2016105252A2 (fr) 2014-12-25 2015-12-24 Ciseaux chirurgicaux

Country Status (2)

Country Link
RU (1) RU2607280C2 (fr)
WO (1) WO2016105252A2 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0228877Y2 (fr) * 1985-04-02 1990-08-02
RU2071280C1 (ru) * 1993-07-05 1997-01-10 Медицинская компания "Сан" Хирургические ножницы
RU2194464C2 (ru) * 2000-09-18 2002-12-20 Шкворченко Дмитрий Олегович Монокристаллический кремниевый режущий инструмент (варианты)
CN101904766A (zh) * 2003-09-17 2010-12-08 贝克顿·迪金森公司 手术和非手术应用的硅刀片
WO2005034791A1 (fr) * 2003-10-09 2005-04-21 Farzad Shaygan Trepan a element de coupe en moissanite (carbure de silicium)
RU86440U1 (ru) * 2008-11-07 2009-09-10 Федеральное государственное унитарное предприятие "Центральный научно-исследовательский институт конструкционных материалов "Прометей" (ФГУП ЦНИИ КМ "Прометей") Хирургические ножницы
EP2272429A1 (fr) * 2009-07-10 2011-01-12 Roche Diagnostics GmbH Lancette

Also Published As

Publication number Publication date
RU2607280C2 (ru) 2017-01-10
RU2014152868A (ru) 2016-07-20
WO2016105252A3 (fr) 2016-08-04

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