DE19934536A1 - Tissue cutter for surgery has two cutting arms each with edge overlapping opposing edge and with stiffening cover flange on one blade - Google Patents

Tissue cutter for surgery has two cutting arms each with edge overlapping opposing edge and with stiffening cover flange on one blade

Info

Publication number
DE19934536A1
DE19934536A1 DE19934536A DE19934536A DE19934536A1 DE 19934536 A1 DE19934536 A1 DE 19934536A1 DE 19934536 A DE19934536 A DE 19934536A DE 19934536 A DE19934536 A DE 19934536A DE 19934536 A1 DE19934536 A1 DE 19934536A1
Authority
DE
Germany
Prior art keywords
scissors
axis
rotation
edge
arms
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
DE19934536A
Other languages
German (de)
Inventor
Andrea Scarfi
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
Priority claimed from DE19851006A external-priority patent/DE19851006A1/en
Application filed by Individual filed Critical Individual
Priority to DE19934536A priority Critical patent/DE19934536A1/en
Priority to PCT/EP1999/008483 priority patent/WO2000027294A1/en
Priority to EP99957998A priority patent/EP1126790B1/en
Priority to DE59912404T priority patent/DE59912404D1/en
Priority to US09/849,082 priority patent/US6458129B2/en
Publication of DE19934536A1 publication Critical patent/DE19934536A1/en
Ceased 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
    • A61B17/3201—Scissors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/30—Surgical pincettes without pivotal connections
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
    • A61B18/1442—Probes having pivoting end effectors, e.g. forceps
    • 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
    • A61B90/08—Accessories or related features not otherwise provided for
    • A61B2090/0813—Accessories designed for easy sterilising, i.e. re-usable

Abstract

The surgical tissue cutter has two cutting arms (20,22) which are relatively pivotable. Each arm has a cutting edge which can overlap the opposing edge when the arms are pivoted. One of the arms has a cover flange (28,38) to partially cover the other arm.

Description

Stand der TechnikState of the art

In der minimal invasiven Chirurgie sind Scheren bekannt, deren beide Arme isoliert sind und durch Anschluß an eine Hochfrequenz Spannungsquelle neben der Schneidwirkung auch gleichzeitig durch die Einwirkung des elektrischen Stroms die geschnittenen Gewebeteile koagulieren und damit z. B. gegen weitere Blutungen verschließen. Die dünnen Scherblätter werden aber mangels exakter Führung leicht verbogen und können dann ihre scherende Wirkung, die auch auf dem gleitenden Ablauf der beiden Schneiden gegeneinander beruht, nicht mehr richtig entfalten. Das Scherengelenk muß auch noch den achsiale Pressdruck zur Anpressung der beiden Scherblätter gegeneinander aufbringen. Bei den bipolaren Scheren beeinflußt die notwendige Pressung des Gelenkes Probleme mit der Isolation, so daß Kurzschlüsse auftreten können. Bei mangelhaft Isolierung können Hochfrequenz Energie Verluste eintreten und dadurch die Schneide/Koagulationswirkung negativ beeinflussen.Scissors are known in minimally invasive surgery both arms are isolated and connected to a radio frequency Power source in addition to the cutting effect at the same time the action of the electric current the cut Coagulate tissue parts and thus z. B. against further bleeding close. However, the thin shear blades are lacking exact guidance slightly bent and can then be sheared Effect that also on the sliding course of the two cutting edges against each other, no longer unfold properly. The The scissor joint must also have the axial pressing pressure Apply pressure between the two blades against each other. At the bipolar scissors affect the necessary pressure of the Joint problems with insulation, causing short circuits may occur. In the case of poor insulation, high frequency Energy losses occur and thereby the Adversely affect cutting edge / coagulation effect.

Erfindunginvention

Der vorliegenden Erfindung liegt nun die Aufgabe zugrunde, die Schere so umzugestalten, daß die Nachteile bekannter Systeme vermieden werden. Dazu werden die Scherenarme durch eine Drehachse X-förmig zu einer .echten. Schere verbunden. Diese Drehachse ist so ausgebildet, daß die Scherenarme einerseits sich leicht drehen lassen, für bipolare Anwendung leicht zu isolieren sind und andererseits leicht auseinander genommen werden können. Zur Sicherung gegen auseinanderfallen der Scherenarme im normalen Gebrauch und zur Unterstützung der Schneide/Koagulationswirkung durch gleitende Bewegung der Schneiden aufeinander erhalten die Scherenarme in unmittelbarer Nähe der Drehachse je eine rechtwinklig abgebogene Lasche, die den jeweils anderen Scherenarm umgreift, ihn während des Schneidens führt, die Arme gegeneinander preßt und die Schere gegen Auseinanderfallen sichert. Zum Auseinandernehmen der Schere wird sie soweit geöffnet, daß die Laschen frei liegen und die Schere auseinander genommen werden kann.The present invention is based on the object Scissors to redesign so that the disadvantages of known systems be avoided. For this, the scissor arms are replaced by a Rotation axis X-shaped to a real one. Scissors connected. This The axis of rotation is designed so that the scissor arms on the one hand easy to turn, easy to bipolar use  isolate and, on the other hand, easily taken apart can be. To protect against falling apart Scissor arms in normal use and to support the Cutting / coagulation effect through sliding movement of the The scissor arms receive cutting edges on top of each other Near the axis of rotation, a tab bent at right angles, the grips the other scissor arm, him during the Cutting leads, presses the arms together and the scissors secures against falling apart. To disassemble the Scissors are opened until the tabs are exposed and the scissors can be taken apart.

Die Ausbildung der Schere mit einer Drehachse in unmittelbarer Nähe der Schneiden verleiht der Schere eine hohe Stabilität und sorgt für eine effektive Wirkung, auch weil die Gefahr der Verbiegung wesentlich verringert wird. Die Laschen sichern die Schere vor dem Auseinanderfallen im normalen Gebrauch und pressen die Scherenarme gegeneinander, sichern einen gleitenden Schnitt/Koagulation und verhindern das Aufbiegen der Schere beim Schneiden von zähem Gewebe. Die Trennbarkeit der Scherenarme ist die Voraussetzung für eine leichte Reinigung des Geräts.The formation of the scissors with an axis of rotation in the immediate The scissors are very stable and close to the cutting edges ensures an effective effect, also because of the danger of Deflection is significantly reduced. The tabs secure the Scissors before falling apart in normal use and press the scissor arms against each other, secure a sliding Cut / coagulate and prevent the scissors from bending open Cutting tough tissue. The scissor arms are separable the prerequisite for easy cleaning of the device.

Weitere Ausbildungen der Erfindung sind in den Unteransprüchen aufgeführt.Further developments of the invention are in the subclaims listed.

Fig. 1 zeigt schematisch eine mögliche Ausführungsform der Er­ findung. Dabei bezeichnet (1) die Scherenarme, (2) die Scherendrehachse, (3) und (4) die Laschen zur Sicherung der Scherenteile. Weitere an sich bekannte Teile des Instruments, insbesondere der Betätigungsmechanismus mit den Handgriffen sind weggelassen. Fig. 1 shows schematically a possible embodiment of the invention. Here, ( 1 ) denotes the scissor arms, ( 2 ) the scissor axis of rotation, ( 3 ) and ( 4 ) the tabs for securing the scissor parts. Further known parts of the instrument, in particular the actuating mechanism with the handles, are omitted.

Claims (8)

1. Schere, dadurch gekennzeichnet, daß die Scherenarme x-förmig über eine lösbare Drehachse verbunden sind, ein Scherenarm in der Nähe der Drehachse zwei rechtwinklig gebogene Laschen enthält, die den anderen Scherenarm umgreifen.1. scissors, characterized in that the scissor arms are connected in an x-shape via a releasable axis of rotation, a scissor arm in the vicinity of the axis of rotation contains two right-angled tabs which encompass the other scissor arm. 2. Schere nach Anspruch 1, dadurch gekennzeichnet, daß beide Scherenarme jeweils in der Nähe der Drehachse eine rechtwinklig gebogene Lasche enthalten, die den jeweils anderen Scherenarm umgreift.2. Scissors according to claim 1, characterized in that both Scissor arms close to the axis of rotation one right-angled tab included that each grips another scissor arm. 3. Schere nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Laschen vor der Drehachse angebracht sind.3. Scissors according to claim 1 or 2, characterized in that the tabs are attached in front of the axis of rotation. 4. Schere nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Laschen hinter der Drehachse angebracht sind.4. Scissors according to claim 1 or 2, characterized in that the tabs are attached behind the axis of rotation. 5. Schere nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß eine Lasche vor der Drehachse und eine Lasche hinter der Drehachse angebracht ist.5. Scissors according to claim 1 or 2, characterized in that a tab in front of the axis of rotation and a tab behind the Axis of rotation is attached. 6. Schere nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Schere durch Isolation sich berührender Teile als bipolare Schere ausgebildet ist.6. Scissors according to claim 1 or 2, characterized in that the scissors by isolating touching parts as bipolar scissors is formed. 7. Schere nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Scherenarme gekröpft sind.7. Scissors according to claim 1 or 2, characterized in that the scissor arms are cranked. 8. Schere nach einem oder mehreren der vorgenannten Ansprüche, dadurch gekennzeichnet, daß das Schneidenteil auswechselbar ist.8. scissors according to one or more of the preceding claims, characterized in that the cutting part is interchangeable is.
DE19934536A 1998-11-05 1999-07-22 Tissue cutter for surgery has two cutting arms each with edge overlapping opposing edge and with stiffening cover flange on one blade Ceased DE19934536A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE19934536A DE19934536A1 (en) 1998-11-05 1999-07-22 Tissue cutter for surgery has two cutting arms each with edge overlapping opposing edge and with stiffening cover flange on one blade
PCT/EP1999/008483 WO2000027294A1 (en) 1998-11-05 1999-11-05 A medical instrument for cutting tissue in the human or animal body
EP99957998A EP1126790B1 (en) 1998-11-05 1999-11-05 A medical instrument for cutting tissue in the human or animal body
DE59912404T DE59912404D1 (en) 1998-11-05 1999-11-05 Medical instrument for cutting tissue in the human or animal body
US09/849,082 US6458129B2 (en) 1998-11-05 2001-05-04 Medical instrument for cutting tissue in the human or animal body

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19851006A DE19851006A1 (en) 1998-11-05 1998-11-05 Tissue cutter for surgery has two cutting arms each with edge overlapping opposing edge and with stiffening cover flange on one blade
DE19934536A DE19934536A1 (en) 1998-11-05 1999-07-22 Tissue cutter for surgery has two cutting arms each with edge overlapping opposing edge and with stiffening cover flange on one blade

Publications (1)

Publication Number Publication Date
DE19934536A1 true DE19934536A1 (en) 2001-06-13

Family

ID=26049973

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19934536A Ceased DE19934536A1 (en) 1998-11-05 1999-07-22 Tissue cutter for surgery has two cutting arms each with edge overlapping opposing edge and with stiffening cover flange on one blade

Country Status (1)

Country Link
DE (1) DE19934536A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202010007881U1 (en) 2010-06-11 2010-11-04 Schnorrenberg, Arno connecting element

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202010007881U1 (en) 2010-06-11 2010-11-04 Schnorrenberg, Arno connecting element

Similar Documents

Publication Publication Date Title
DE69834596T2 (en) Electrosurgical, hemostatic stapler
DE19935478C1 (en) Endoscopic surgical instrument for tissue coagulation and separation has coagulation clamps and scissor blades each pivoted about common pivot axis via respective lever mechanisms
DE69629501T2 (en) SLEEVE ELECTRODES FOR ELECTROCAUTERIZING PROBE FOR USE IN A RESECTOSCOPE
EP1649820B1 (en) Electrosurgical apparatus
DE60210880T2 (en) Combined bipolar forceps and scissors instrument
DE69826957T2 (en) Combined bipolar scissors and gripping instrument
DE3490633C2 (en) Bipolar electrosurgical instrument
DE19650150A1 (en) Bipolar electrosurgical scissors
EP0188701A2 (en) Bipolar coagulation instrument
US5906629A (en) Arthroscopic surgical apparatus
CA2345797A1 (en) Spinal disc space distractor
EP2522291A1 (en) Electro-surgical instrument
JP7446307B2 (en) device for tying knots
EP3132765B1 (en) Coagulation and dissection instrument with improved control
WO2017025626A1 (en) Device for separating tissue parts
DE69831447T2 (en) Monopolar electrosurgical trocar
DE19934536A1 (en) Tissue cutter for surgery has two cutting arms each with edge overlapping opposing edge and with stiffening cover flange on one blade
DE19851006A1 (en) Tissue cutter for surgery has two cutting arms each with edge overlapping opposing edge and with stiffening cover flange on one blade
DE19904055A1 (en) Tissue cutter for surgery has two cutting arms each with edge overlapping opposing edge and with stiffening cover flange on one blade
EP1983918B1 (en) Electrosurgical instrument and type series for electrosurgical instruments
EP2653119B1 (en) Medical instrument and method for assembling a medical instrument
DE3390554C2 (en) Electrosurgical tool
DE19652098A1 (en) Monolithic disposable surgical instrument
DE3023671A1 (en) Tissue-sampling biopsy tweezers - have both jaw halves cranked to lie outside rear parts
DE102009049399B4 (en) Electrosurgical instrument

Legal Events

Date Code Title Description
AF Is addition to no.

Ref country code: DE

Ref document number: 19851006

Format of ref document f/p: P

8122 Nonbinding interest in granting licenses declared
8131 Rejection