USH1028H - Medical forceps - Google Patents

Medical forceps Download PDF

Info

Publication number
USH1028H
USH1028H US07/679,650 US67965091A USH1028H US H1028 H USH1028 H US H1028H US 67965091 A US67965091 A US 67965091A US H1028 H USH1028 H US H1028H
Authority
US
United States
Prior art keywords
parts
swingable
jaw
grip part
grip
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.)
Abandoned
Application number
US07/679,650
Inventor
Ernst Falk
Andreas Dingler
Siegfried Hiltebrandt
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.)
Richard Wolf GmbH
Original Assignee
Richard Wolf 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 Richard Wolf GmbH filed Critical Richard Wolf GmbH
Assigned to RICHARD WOLF GMBH reassignment RICHARD WOLF GMBH ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: FALK, ERNST, DINGLER, ANDREAS, HILTEBRANDT, SIEGFRIED
Application granted granted Critical
Publication of USH1028H publication Critical patent/USH1028H/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28—Surgical forceps
    • A61B17/29—Forceps for use in minimally invasive surgery
    • A61B17/2909—Handles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28—Surgical forceps
    • A61B17/2812—Surgical forceps with a single pivotal connection
    • A61B17/2833—Locking means
    • A61B2017/2837—Locking means with a locking ratchet
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28—Surgical forceps
    • A61B17/29—Forceps for use in minimally invasive surgery
    • A61B17/2909—Handles
    • A61B2017/2911—Handles rings
    • 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
    • A61B90/03—Automatic limiting or abutting means, e.g. for safety
    • A61B2090/032—Automatic limiting or abutting means, e.g. for safety pressure limiting, e.g. hydrostatic
    • 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
    • A61B90/03—Automatic limiting or abutting means, e.g. for safety
    • A61B2090/033—Abutting means, stops, e.g. abutting on tissue or skin

Definitions

  • the present invention relates to medical forceps having a fixed jaw part with which a fixed grip part is associated and a movable jaw part which can be actuated by means of a swingable grip part which is coupled to the movable jaw part by a spring member which limits the actuating force.
  • the object of the present invention is to improve the forceps in accordance with the above-described prior art in such a manner that a practically constant force can be exerted on the two jaw parts regardless of how far the two grip parts are moved towards each other.
  • the swingable grip part consists of two parts which are on a line with each other and are undetachably connected to each other by a flexural spring member.
  • the outer part of the swingable grip part as well as the rigid grip part can be provided in this connection with handles and be equipped, in known manner, with detent elements which correspond to each other.
  • FIG. 1 is an overall side view of the forceps
  • FIG. 2 shows on a larger scale the part of the forceps of FIG. 1 which is developed in accordance with the invention.
  • FIG. 1 shows a forceps 1 having a rigid jaw part 3 and a swingable jaw part 2 which can be actuated via a pull and push rod (not shown) guided in the forceps shank 4 by means of a grip part 5 which is held against a rigid grip part 6.
  • the two grip parts 5 and 6 have detent elements 7 which can be brought into detachable engagement with each other via a profiled surface.
  • the grip part 5 consists of an inner part 9 and an outer part 10, said parts being connected in undetachable manner to each other by means of a flat spring 11.
  • the flat spring 11 is bridged over by support projections 12 and 13 except for a small space 14, a slight air space remaining between the support projections 12 and 13 and the flat spring 11.
  • the space 14 between the two support projections 12 and 13 of the parts 9 and 10 respectively is, to be sure, reduced even if the detent elements 7 and 8 are engaged with each other, but the surfaces of the support projections 12 and 13 which define the space 14 do not come against each other. If the forceps are used in a manner not in accord with their purpose, i.e.

Abstract

Medical forceps are described which have a fixed jaw part and swingable jaw part with which parts a fixed handle part and a swingable handle part respectively are associated. In order to limit the pressure force which can be produced on the jaw parts, the swingable grip part is divided into two parts which are undetachably connected on a line with each other by a flexural spring element. For the fixing of the gripping position of the jaw parts detent elements which come into detachable engagement with each other are provided on the grip parts.

Description

The present invention relates to medical forceps having a fixed jaw part with which a fixed grip part is associated and a movable jaw part which can be actuated by means of a swingable grip part which is coupled to the movable jaw part by a spring member which limits the actuating force.
Known forceps of this type are disclosed in Federal Republic of Germany Patent 36 01 166 in which a fixed jaw part and a swingable jaw part are associated with a fixed and swingable grip part respectively, the said last-mentioned grip part being divided into two individual parts which are articulated to each other and rest against each other via a spring member in order to limit the pressing force which can be produced on the jaw parts.
In this embodiment when a given pressure is exceeded although the lower part is disconnected from the other part which is then no longer swingable, upon further movements of the grip parts towards each other the old force of the jaw parts however increases further in correspondence with the characteristic curve of the spring member. The thus increasing force can lead to the perforating or even the cutting of the tissue present between the jaw parts.
The object of the present invention, therefore, is to improve the forceps in accordance with the above-described prior art in such a manner that a practically constant force can be exerted on the two jaw parts regardless of how far the two grip parts are moved towards each other.
This object is achieved in accordance with the invention in the manner that the swingable grip part consists of two parts which are on a line with each other and are undetachably connected to each other by a flexural spring member. In accordance with the preferred embodiment, the outer part of the swingable grip part as well as the rigid grip part can be provided in this connection with handles and be equipped, in known manner, with detent elements which correspond to each other.
The forceps of the invention are described in further detail below with reference to an embodiment shown in the drawing, in which FIG. 1 is an overall side view of the forceps; FIG. 2 shows on a larger scale the part of the forceps of FIG. 1 which is developed in accordance with the invention.
FIG. 1 shows a forceps 1 having a rigid jaw part 3 and a swingable jaw part 2 which can be actuated via a pull and push rod (not shown) guided in the forceps shank 4 by means of a grip part 5 which is held against a rigid grip part 6. In order to be able to fix the two jaw parts 2 and 3 in the position holding the tissue fast, the two grip parts 5 and 6 have detent elements 7 which can be brought into detachable engagement with each other via a profiled surface.
The grip part 5 consists of an inner part 9 and an outer part 10, said parts being connected in undetachable manner to each other by means of a flat spring 11. The flat spring 11 is bridged over by support projections 12 and 13 except for a small space 14, a slight air space remaining between the support projections 12 and 13 and the flat spring 11.
If tissue not in excess of a given thickness is gripped by the two jaw parts 2 and 3, the space 14 between the two support projections 12 and 13 of the parts 9 and 10 respectively is, to be sure, reduced even if the detent elements 7 and 8 are engaged with each other, but the surfaces of the support projections 12 and 13 which define the space 14 do not come against each other. If the forceps are used in a manner not in accord with their purpose, i.e. if too much tissue or, for instance, cartilage is grasped by the two jaw parts 2 and 3, then the force required for the closing of said parts is so great that the two support projections 12 and 13 come against each other in the region of the space 14 and in this way form a safety stop which prevents permanent deformation of the spring element and which is transmitted on the outer part 9 directly to the swingable jaw part 2. In such case it can, of course, not be avoided that the disadvantages of the known prior art arise.

Claims (3)

We claim:
1. Medical forceps having a fixed jaw part with which a fixed grip part is associated and a moveable jaw part which is actuatable by means of a swingable grip part, the latter being coupled with the moveable jaw part via a spring member which limits the actuating force, characterized by the fact that the swingable grip part (5) consists of two parts (9 and 10) which are in line with each other and are undetachably connected to each other by a flexural spring element (11).
2. Forceps according to claim 1, characterized by the fact that a safety stop which limits the deflection of the flexural spring element (11) is provided.
3. Forceps according to claim 1 or 2, characterized by the fact that the outer part (10) of the swingable grip part (5) as well as the grip part (6) fixed are provided with handles and equipped with detent elements (7 and 8) which correspond to each other.
US07/679,650 1990-04-04 1991-04-02 Medical forceps Abandoned USH1028H (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4010775 1990-04-04
DE4010775A DE4010775A1 (en) 1990-04-04 1990-04-04 MEDICAL PLIERS

Publications (1)

Publication Number Publication Date
USH1028H true USH1028H (en) 1992-03-03

Family

ID=6403688

Family Applications (1)

Application Number Title Priority Date Filing Date
US07/679,650 Abandoned USH1028H (en) 1990-04-04 1991-04-02 Medical forceps

Country Status (4)

Country Link
US (1) USH1028H (en)
EP (1) EP0450608B1 (en)
AT (1) ATE108317T1 (en)
DE (2) DE4010775A1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5242458A (en) * 1991-10-15 1993-09-07 Ethicon, Inc. Suture needle holder for endoscopic use
US5258007A (en) * 1992-05-14 1993-11-02 Robert F. Spetzler Powered surgical instrument
US5312433A (en) * 1991-09-19 1994-05-17 Richard Wolf Gmbh Surgical forceps
US5331971A (en) * 1990-05-10 1994-07-26 Symbiosis Corporation Endoscopic surgical instruments
US5472451A (en) * 1992-09-11 1995-12-05 Freitas; Michael W. Endoscopic surgical instrument with acute angle orientation
US5683412A (en) * 1994-12-23 1997-11-04 Symbiosis Corporation Force-limiting control member for endoscopic instruments and endoscopic instruments incorporating same
US5980511A (en) * 1998-05-15 1999-11-09 T. Esser Medical instrument handle with integral palm blocking member
US20070049863A1 (en) * 2003-01-14 2007-03-01 Jahns Scott E Devices and methods for interstitial injection of biologic agents into tissue

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5176702A (en) * 1991-04-04 1993-01-05 Symbiosis Corporation Ratchet locking mechanism for surgical instruments
EP0513471A3 (en) * 1991-04-19 1993-02-03 Lutz Kothe Surgical instrument
FR2682278B1 (en) * 1991-10-15 1998-11-06 Boutmy Ets SURGICAL INSTRUMENT PROVIDED WITH SYMMETRICAL MEANS OF OPERATION.
US5211655A (en) * 1992-05-08 1993-05-18 Hasson Harrith M Multiple use forceps for endoscopy
US5413583A (en) * 1992-05-21 1995-05-09 Ethicon, Inc. Force limiting arrangement for needle holder for endoscopic surgery
DE4216971C2 (en) * 1992-05-22 1995-06-08 Wolf Gmbh Richard Pliers for grasping and holding tissue or the like
DE4313903C1 (en) * 1993-04-28 1994-09-15 Winter & Ibe Olympus Surgical instrument with jaws
DE9404458U1 (en) * 1994-03-16 1995-07-20 Franz Jakoubek Medizintechnik Surgical forceps for biopsy and endoscopy purposes and as needle holder forceps for surgical needles
DE4411099C2 (en) * 1994-03-30 1998-07-30 Wolf Gmbh Richard Surgical instrument
US5788710A (en) * 1996-04-30 1998-08-04 Boston Scientific Corporation Calculus removal
DE19640896A1 (en) * 1996-10-04 1998-04-23 Wolf Gmbh Richard Medical instrument for endoscopic use
US6096037A (en) 1997-07-29 2000-08-01 Medtronic, Inc. Tissue sealing electrosurgery device and methods of sealing tissue
US6546935B2 (en) 2000-04-27 2003-04-15 Atricure, Inc. Method for transmural ablation
US7740623B2 (en) 2001-01-13 2010-06-22 Medtronic, Inc. Devices and methods for interstitial injection of biologic agents into tissue
US6991597B2 (en) 2001-03-09 2006-01-31 Boston Scientific Scimed, Inc. System for implanting an implant and method thereof
US8033983B2 (en) 2001-03-09 2011-10-11 Boston Scientific Scimed, Inc. Medical implant
US7967816B2 (en) 2002-01-25 2011-06-28 Medtronic, Inc. Fluid-assisted electrosurgical instrument with shapeable electrode
US7402133B2 (en) 2002-12-17 2008-07-22 Boston Scientific Scimed, Inc. Spacer for sling delivery system
US7361138B2 (en) 2003-07-31 2008-04-22 Scimed Life Systems, Inc. Bioabsorbable casing for surgical sling assembly
WO2005120376A2 (en) 2004-06-02 2005-12-22 Medtronic, Inc. Ablation device with jaws
US10166066B2 (en) 2007-03-13 2019-01-01 University Of Virginia Patent Foundation Epicardial ablation catheter and method of use
US9468396B2 (en) 2007-03-19 2016-10-18 University Of Virginia Patent Foundation Systems and methods for determining location of an access needle in a subject
US11058354B2 (en) 2007-03-19 2021-07-13 University Of Virginia Patent Foundation Access needle with direct visualization and related methods
AU2008229154B2 (en) 2007-03-19 2013-12-19 University Of Virginia Patent Foundation Access needle pressure sensor device and method of use
US9211405B2 (en) 2007-03-22 2015-12-15 University Of Virginia Patent Foundation Electrode catheter for ablation purposes and related method thereof
US9642534B2 (en) 2009-09-11 2017-05-09 University Of Virginia Patent Foundation Systems and methods for determining location of an access needle in a subject
EP2537149B1 (en) 2010-02-18 2017-10-25 University Of Virginia Patent Foundation System, method, and computer program product for simulating epicardial electrophysiology procedures
DE102011083331B4 (en) 2011-09-23 2019-01-24 Olympus Winter & Ibe Gmbh gripping instrument
DE102012210763A1 (en) 2012-06-25 2014-01-02 Olympus Winter & Ibe Gmbh gripping instrument
EP3236870B1 (en) * 2014-12-23 2019-11-06 Applied Medical Resources Corporation Bipolar electrosurgical sealer and divider
US10828060B2 (en) * 2018-06-13 2020-11-10 Covidien Lp Hemostat-style ultrasonic surgical instrument with clamp force-limiting feature
DE102022116377A1 (en) 2022-06-30 2024-01-04 Karl Storz Se & Co. Kg FORCE-LIMITING HANDLE, SURGICAL INSTRUMENT AND MODULAR INSTRUMENT SYSTEM

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3176689A (en) * 1963-09-04 1965-04-06 Yahr William Zachary Clamp closing devices
JPS4824796B1 (en) * 1970-06-03 1973-07-24
DE2736707A1 (en) * 1977-08-16 1979-03-01 Schruff Herbert Gmbh Setting tool for blind rivets - has lever to exert axial force on rivet to cause collapse of head
DE3601166A1 (en) * 1986-01-17 1987-07-23 Hermann Dausch Microsurgical forceps, especially for arthroscopy
US4724838A (en) * 1986-10-01 1988-02-16 Hasson Harrith M Footed forceps-type surgical instrument
DE3709067A1 (en) * 1987-03-19 1988-09-29 Ewald Hensler Medical, especially surgical, instrument
US5047046A (en) * 1988-07-13 1991-09-10 Bodoia Rodger D Surgical forceps

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5331971A (en) * 1990-05-10 1994-07-26 Symbiosis Corporation Endoscopic surgical instruments
US5312433A (en) * 1991-09-19 1994-05-17 Richard Wolf Gmbh Surgical forceps
US5242458A (en) * 1991-10-15 1993-09-07 Ethicon, Inc. Suture needle holder for endoscopic use
US5258007A (en) * 1992-05-14 1993-11-02 Robert F. Spetzler Powered surgical instrument
US5472451A (en) * 1992-09-11 1995-12-05 Freitas; Michael W. Endoscopic surgical instrument with acute angle orientation
US5683412A (en) * 1994-12-23 1997-11-04 Symbiosis Corporation Force-limiting control member for endoscopic instruments and endoscopic instruments incorporating same
US5980511A (en) * 1998-05-15 1999-11-09 T. Esser Medical instrument handle with integral palm blocking member
US20070049863A1 (en) * 2003-01-14 2007-03-01 Jahns Scott E Devices and methods for interstitial injection of biologic agents into tissue
US7744562B2 (en) 2003-01-14 2010-06-29 Medtronics, Inc. Devices and methods for interstitial injection of biologic agents into tissue

Also Published As

Publication number Publication date
DE59102142D1 (en) 1994-08-18
EP0450608B1 (en) 1994-07-13
EP0450608A1 (en) 1991-10-09
DE4010775A1 (en) 1991-10-17
ATE108317T1 (en) 1994-07-15

Similar Documents

Publication Publication Date Title
USH1028H (en) Medical forceps
EP0557686B1 (en) Repositioning tool for pedicle screws
JP3651631B2 (en) Removable handle for container
CA2025103C (en) Compound toggle link
US4811486A (en) Pocket knife
CA2188737A1 (en) Pivoted Hand Tool
JPH0839440A (en) Tightening pliers
US4813107A (en) Spring clamp
USD417377S (en) One-handed adjustable clamp
KR19990028958A (en) Locking grip
EP1616676A3 (en) Razor with a movable shaving head
CA2492052A1 (en) Bar clamp with side-activated braking lever
GB2210315A (en) An instrument for holding surgical needles
US6131491A (en) Self-locking chuck key
WO2000001510A3 (en) Self-adjusting and/or self-locking pliers
CA2383802A1 (en) Compound toggle link retention mechanism
EP0732779A3 (en) Pliers for pressing wire end ferrules
EP1223008A3 (en) Crimping pliers
EP0073832B1 (en) Long nose locking plier
US4524648A (en) Fixation tweezers
EP0968792A3 (en) Locking plier tool
EP1123781A2 (en) Wrench
US6497165B1 (en) Water pump pliers with single-hand control
US6857342B2 (en) Locking pliers
US11701756B2 (en) Screwing tool

Legal Events

Date Code Title Description
AS Assignment

Owner name: RICHARD WOLF GMBH,GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:FALK, ERNST;DINGLER, ANDREAS;HILTEBRANDT, SIEGFRIED;SIGNING DATES FROM 19910404 TO 19910418;REEL/FRAME:005747/0546

STCF Information on status: patent grant

Free format text: PATENTED CASE