EP1299036A2 - Dispositif chirurgical d'extraction de cellules de tissu d'une structure biologique - Google Patents

Dispositif chirurgical d'extraction de cellules de tissu d'une structure biologique

Info

Publication number
EP1299036A2
EP1299036A2 EP01957706A EP01957706A EP1299036A2 EP 1299036 A2 EP1299036 A2 EP 1299036A2 EP 01957706 A EP01957706 A EP 01957706A EP 01957706 A EP01957706 A EP 01957706A EP 1299036 A2 EP1299036 A2 EP 1299036A2
Authority
EP
European Patent Office
Prior art keywords
liquid jet
surgical device
tissue cells
section
capillary
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.)
Withdrawn
Application number
EP01957706A
Other languages
German (de)
English (en)
Inventor
Andreas Pein
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.)
TAUFIG Ahmmed Ziah
Original Assignee
Andreas Pein Medizintechnik 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7648271&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1299036(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Andreas Pein Medizintechnik GmbH filed Critical Andreas Pein Medizintechnik GmbH
Publication of EP1299036A2 publication Critical patent/EP1299036A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/3203—Fluid jet cutting instruments
    • A61B17/32037—Fluid jet cutting instruments for removing obstructions from inner organs or blood vessels, e.g. for atherectomy
    • 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
    • A61M2202/00—Special media to be introduced, removed or treated
    • A61M2202/08—Lipoids

Definitions

  • the invention relates to a surgical device for removing tissue cells from a biological structure according to the preamble of claim 1. Such instruments are used in surgical clinics.
  • the cell is the basic unit of living matter and essentially consists of one or more cell nuclei that are embedded in the cytoplasm and one
  • Structure such as the human body.
  • Fat tissue can be taken from all possible parts of the body.
  • Adipose tissue to be inserted With the help of those exiting in all directions
  • Tissue cells such as blood cells. This damages the human body and therefore complicates and extends the healing process.
  • ultrasonic probes emit radiation on all sides and therefore cannot be used in a targeted manner. For example, it is not possible to work on border areas between the fat tissue to be extracted and an adjacent healthy tissue without damaging the healthy tissue.
  • the invention is therefore based on the object of developing a surgical device for removing tissue cells from a biological structure, with which tissue cells can be separated and removed undamaged.
  • the invention eliminates the disadvantages of the prior art mentioned.
  • the particular advantage of the invention is that neither the tissue cells to be removed nor the adjacent and remaining tissue cells are damaged during the removal. On the one hand, this makes it possible to continue using the removed tissue cells, for example for an increase in the tissue cells carried out outside the human or animal body. This type of withdrawal but also protects all healthy tissue cells that remain in the body, because only the desired tissue cells are removed. For this purpose, it is expedient to design the liquid jet like a peeling knife or a scraper.
  • the more or less flat liquid jet extends transversely at a right angle to the suction lines located on an axial line, because this results in the shortest transport path of the removed tissue cells between the peeling edge of the liquid jet and the suction holes.
  • Fig. 1 the surgical handpiece of the surgical device with a round liquid jet
  • Fig. 2 the surgical handpiece with a flat liquid jet.
  • the structure of the surgical device for removing vital tissue cells from a biological structure largely corresponds to that of a liquid jet device for separating a biological structure.
  • a separation device is generally mine known and need not be shown separately here.
  • a corresponding separation device is described in EP 0 551 920 B1.
  • the surgical device for removing tissue cells from a biological structure thus essentially consists of a pressure generator, a piston-cylinder unit and a special surgical handpiece 1.
  • a cartridge is inserted in a form-fitting manner, which is fitted with a sterile Liquid is filled and which is connected to the surgical handpiece 1.
  • the pressure medium of the pressure generator loads the cartridge, as a result of which the sterile liquid is pressed out of the cartridge and conveyed to the surgical handpiece 1, where it emerges under pressure in the form of a fine liquid jet.
  • All device units of this high-pressure liquid jet device are designed and coordinated so that on the one hand a continuous sterile chain is guaranteed for the liquid and on the other hand the escaping liquid jet can intelligently process different biological structures with the highest precision.
  • the special surgical handpiece 1 consists of a handle gap (not shown) for the surgeon and a cannula 2 for insertion into the biological structure. Inside the cannula 2 is a capillary 3 for the emerging
  • Liquid jet and a capillary 4 for the suction of separated tissue cells and the used liquid Liquid jet and a capillary 4 for the suction of separated tissue cells and the used liquid.
  • the capillary 3 for supplying liquid is preferably arranged on the inside and coaxial with the cannula 2, and the capillary 4 for suctioning the tissue cells is designed as an annular channel encompassing the inside capillary 2.
  • both capillaries 3 and 4 can of course also be arranged separately next to one another in the cannula 2.
  • the capillary 4 for suctioning the tissue cells has at the distal end of the cannula 2 a plurality of radial suction openings 5, which are arranged on two opposite axial lines at equal distances from one another.
  • Suction openings 5 are selected so that, on the one hand, the build-up of a suction force and, on the other hand, the passability of the separated tissue cells is made possible.
  • the capillary 3 for the emerging liquid jet likewise opens at the distal end of the cannula 2 in a nozzle piece 6 which is rigidly connected to the cannula 2.
  • the nozzle piece 6 is preferably screwed into the cannula 2.
  • the nozzle piece 6 has an axially arranged nozzle opening 7, which is designed in a special way for a wide variety of applications.
  • the nozzle opening 7 of the nozzle gap 6 according to FIG. 2 is designed to be flat in such a way that an emerging liquid jet with a strongly flattened cross section results.
  • This flat liquid jet is oriented such that each of the two rows of radial suction openings 5 is at right angles to one of the two flattened long sides of the liquid cross section.
  • the nozzle opening 7 of the nozzle piece 6 is designed, for example, for the removal of vital tissue cells from the liver according to FIG. 1 round or approximately round in such a way that a liquid jet with a round cross section, with a round cross section with a slight flattening or with an oval cross-section emerges.
  • the radial suction openings 5 are arranged approximately at right angles to the existing flattenings of the liquid jet.
  • the dashed outlet line 8 is intended to indicate that the emerging liquid jet can also emerge at a predetermined angle with respect to the central axis of the cannula 2 by a corresponding shape and arrangement of the nozzle opening 7 in the nozzle piece 6.
  • a minimal surgical incision is first made in the patient's abdominal wall and then the cannula 2 with the liquid jet already emerging under pressure is attached to this opening.
  • the opening of the abdominal wall is pressed apart so far by the pressure of the emerging liquid jet that the cannula 2 of the
  • Surgical handpiece can be easily inserted under the abdominal wall into the area of the fatty tissue.
  • the surgeon can feel the position of the cannula 2 and the direction and position of the flat liquid jet at the pressure emanating from the liquid jet outside the abdominal wall and correct or change it with the guide hand.
  • the pressure of the liquid jet is regulated on site in such a way that the flat liquid jet emerges with a force which does not destroy the adipose tissue cells but only displaces it from the jet area.
  • neighboring fat cells shift and stand out from one another, so that free spaces are formed between the fat cells, into which the liquid jet penetrates and there pushes apart the seams of the neighboring cell membranes that are still present.
  • the cannula 2 of the surgical handpiece 1 is only equipped with such a nozzle piece 6, which produces a round, or approximately round and punctiform liquid jet, and a lower pressure on the liquid jet is set on the surgical device.
  • the procedure is the same as for the removal of fat cells.
  • the punctiform liquid jet is moved sideways on a line to increase the peeling effect.
  • the individual or smaller cell bundles are again suctioned off and then placed in a corresponding station for the purpose of cell multiplication.

Landscapes

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

Abstract

En général, des cellules de tissu adipeux sont extraites d'un corps humain, détruites par ultrason puis aspirées. Ce procédé endommage le corps humain puisque d'autres cellules de tissu avoisinantes, par exemples des cellules sanguines, sont également détruites. La présente invention concerne ainsi un dispositif chirurgical comprenant un dispositif à jet de liquide doté d'un instrument chirurgical spécial (1). Cet instrument chirurgical (1) comporte un capillaire (3) d'évacuation du jet de liquide et un capillaire (4) d'aspiration des cellules de tissu séparées. Selon ladite invention, le jet de liquide jaillissant est formé, dans sa section, de manière à provoquer un effet exfoliant.
EP01957706A 2000-07-07 2001-07-05 Dispositif chirurgical d'extraction de cellules de tissu d'une structure biologique Withdrawn EP1299036A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10033278A DE10033278B4 (de) 2000-07-07 2000-07-07 Chirurgische Einrichtung zur Entnahme von Gewebezellen aus einer biologischen Struktur
DE10033278 2000-07-07
PCT/DE2001/002417 WO2002003866A2 (fr) 2000-07-07 2001-07-05 Dispositif chirurgical d'extraction de cellules de tissu d'une structure biologique

Publications (1)

Publication Number Publication Date
EP1299036A2 true EP1299036A2 (fr) 2003-04-09

Family

ID=7648271

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01957706A Withdrawn EP1299036A2 (fr) 2000-07-07 2001-07-05 Dispositif chirurgical d'extraction de cellules de tissu d'une structure biologique

Country Status (5)

Country Link
US (1) US20040092987A1 (fr)
EP (1) EP1299036A2 (fr)
CA (1) CA2415129C (fr)
DE (1) DE10033278B4 (fr)
WO (1) WO2002003866A2 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20210646U1 (de) * 2002-07-09 2002-10-02 Pein Andreas Chirurgische Einrichtung zur Entnahme von Gewebezellen aus einer biologischen Struktur
DE20211555U1 (de) 2002-07-12 2002-11-28 Peln Andreas Chirurgische Einrichtung zur Entnahme von Gewebezellen aus einer biologischen Struktur
DE102005030931B4 (de) * 2005-06-30 2009-03-05 P + P Medical Gmbh Operationshandstück einer chirurgischen Einrichtung zur Entnahme von Gewebe aus einer biologischen Strukur
DE202005018601U1 (de) * 2005-11-29 2006-04-13 Human Med Ag Chirurgische Einrichtung zum Trennen einer biologischen Struktur mit Hilfe eines Flüssigkeitsstrahls
DE102007002486B4 (de) * 2007-01-11 2012-04-05 Human Med Ag Applikator für das chirurgische Wasserstrahltrennen zur Erzeugung eines Flachstrahls und Verfahren zur Herstellung des Applikators
US9867636B2 (en) * 2013-03-15 2018-01-16 The Regents Of The University Of California Method, apparatus, and a system for a water jet

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE206610C (fr) *
RO57165A2 (fr) * 1972-09-29 1974-12-15
DE2447513A1 (de) * 1974-10-04 1976-04-08 Henke Sass Wolf Gmbh Absaugkuerette fuer saugapparate
US4024866A (en) * 1974-12-02 1977-05-24 Hydro Pulse Corporation Surgical apparatus for removal of tissue
DE3715418A1 (de) * 1986-05-08 1987-11-12 Olympus Optical Co Lithotom
DE4018736A1 (de) * 1990-06-12 1992-01-02 Wigbert S Prof Dr Med Rau Hochdruck-aspirationskatheter zur wiedereroeffnung von krankhaft verschlossenen gefaessen
DE4200976C2 (de) * 1992-01-16 1995-08-24 Andreas Pein Vorrichtung zum Trennen einer biologischen Struktur, insbesondere des menschlichen Gewebes
US5322504A (en) * 1992-05-07 1994-06-21 United States Surgical Corporation Method and apparatus for tissue excision and removal by fluid jet
MX9307838A (es) * 1992-12-11 1994-06-30 American Hydro Surgical Instr Accesorio de desconexion rapida para acoplar una punta de sonda de prueba intercambiable con un instrumento laparoscopico.
US5788667A (en) * 1996-07-19 1998-08-04 Stoller; Glenn Fluid jet vitrectomy device and method for use
US5766194A (en) * 1996-12-23 1998-06-16 Georgia Skin And Cancer Clinic, Pc Surgical apparatus for tissue removal
DE20009786U1 (de) * 2000-05-31 2000-10-19 Taufig Ahmmed Ziah Fettabsaugvorrichtung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0203866A3 *

Also Published As

Publication number Publication date
CA2415129A1 (fr) 2002-01-17
CA2415129C (fr) 2007-09-04
WO2002003866A3 (fr) 2002-03-28
WO2002003866A2 (fr) 2002-01-17
DE10033278A1 (de) 2002-01-24
US20040092987A1 (en) 2004-05-13
DE10033278B4 (de) 2006-02-16

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