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US3840003A - Forceps assembly for removing cellular tissue from the body cavities - Google Patents

Forceps assembly for removing cellular tissue from the body cavities Download PDF

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Publication number
US3840003A
US3840003A US00308467A US30846772A US3840003A US 3840003 A US3840003 A US 3840003A US 00308467 A US00308467 A US 00308467A US 30846772 A US30846772 A US 30846772A US 3840003 A US3840003 A US 3840003A
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Prior art keywords
blades
pair
forceps
clamp member
wire
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Expired - Lifetime
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US00308467A
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O Komiya
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Olympus Corp
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Olympus Optical Co Ltd
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B10/00—Instruments for taking body samples for diagnostic purposes; Other methods or instruments for diagnosis, e.g. for vaccination diagnosis, sex determination or ovulation-period determination; Throat striking implements
    • A61B10/02—Instruments for taking cell samples or for biopsy
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/28—Surgical forceps
    • A61B17/29—Forceps for use in minimally invasive surgery
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/28—Surgical forceps
    • A61B17/29—Forceps for use in minimally invasive surgery
    • A61B2017/2901—Details of shaft
    • A61B2017/2905—Details of shaft flexible

Definitions

  • the present invention relates to a forceps assembly in use for removing cellular tissue from the inner walls of the body cavities.
  • cap-forceps each comprised of a pair of cups which are swung open and put together.
  • the cupforceps tear cellular tissue bit by bit away from the body walls and inevitably make the tissue removal difficult and time-consuming.
  • the object of the present invention is to provide a forceps which can cut and clamp a relatively large piece of cellular tissue.
  • the forceps assembly comprises a forceps holder attached to the end of a flexible tube, a pair of scissors held by said forceps holder and constituted by a pair of blades opened and closed by a wire running through said flexible tube, and at least one clamp member protruding from the back of one of said paired blades for clamping a piece of cut off cellular tissue between the clamp member and the other of the pair of scissor blades.
  • FIG. 1 is a side sectional view of one embodiment of the present invention
  • FIG. 2 is a front sectional view of the embodiment of FIG. 1 with its scissors in the opened state;
  • FIG. 3 is a front sectional view of the embodiment of FIG. 1 with its scissors in the closed state.
  • a flexible tube 11 is made of a spiraled plastic wire or tape covered with a plastic layer or layers, and has a wire 22 running therethrough.
  • a forceps holder 12 is attached to said flexible tube 11.
  • Fixed to forceps holder 12 are a pair of support plates 13 in parallel to each other, between the front portions of which a pair of scissors 17 made of opposing blades 15 and 16 are pivotally disposed by a pin 14.
  • a connector 18 is so disposed in forceps holder 12 as to slide back and forth therethrough and is connected to the end of wire 22.
  • a pair of link members 19 and 20 are pivoted on the tip of connector 18 at one end and on respective blades 15 and 16 at the other end. Consequently, a pair of scissors 17 are opened and closed as wire 22 is moved through flexible tube 11.
  • Either said blade 15 or 16 blade 16 in FIGS. 2 and 3 has a clamp member 23 having an L-shaped section and protruding from the back of the blade.
  • this clamp member 23 there is perforated a window 24, which helps prevent any damage to the clamped cellular tissue that would otherwise be inevitable.
  • the forceps assembly according to the present invention is manipulated in the following manner to, for'example, remove a polyp 26 as illustrated in FIGS. 2 and 3 from the body wall 25.
  • the forceps assembly is inserted into the body cavity until its pair of scissors 17 come into contact with the polyp 26 to be cut and removed. Secondly,.the pair of scissors 17 are swung open by the push of wire 12 and blades 15 and 16 are so moved as to sandwich the neck of polyp 36. Thirdly, the pair of scissors 17 are closed to cut the neck of polyp 26, which is simultaneously clamped and held steady between blade 15 and clamp member 23. Finally the, forceps assembly is withdrawn from the body cavity with polyp 26 clamped steady between blade 15 and clamp member 23.
  • the forceps assembly can remove without fail pieces of cellular tissue from the body cavities.
  • each scissor'blade is provided with a clamp member, which may or may not have a window.
  • means for clamping severed cellular tissue including at least one clamp member protruding from the back of one of said blades, said clamp member being cantilevered and extending in a direction toward the other of said blades and adjacent the outer surface of said other blade and cooperating with the outer surface of said other blade so as to clamp a piece of cellular tissue cut by said pair of scissors between said cantilevered clamp member and the outer surface of said other blade.
  • a forceps assembly according to claim 1 comprising a pair of link members respectively pivotally connected to said pair of blades, said link members being coupled to said wire for respectively opening and closing said blades by push and pull of said wire.
  • a forceps assembly comprising at least one support plate fixedly connected to said forceps holder, said scissor blades being pivotally con nected to said at least one support plate; and a pair of link members respectively coupled to said pair of scissor blades, said link members being pivotally coupled to said wire.

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

Abstract

A forceps assembly has a forceps holder attached to the end of a flexible tube and a pair of scissors opened and closed by a wire running through said flexible tube, at least one of the opposing blades of the scissors having a clamp member for clamping a piece of cellular tissue to be scissored between the clamp member and the other of the scissor blades.

Description

ited States Patent [191 [111 3, Korniya Oct. 8, 1974 FORCEPS ASSEMBLY FOR REMOVING 2,434,550 1 /1948 Daniel 43/29 CELLULAR TISSUE FROM T BODY 2,955,592 10/1960 MacLean 128/2 B CAVITIES 2,994,321 8/1961 Tischler 128/2 B 3,353,531 11/1967 Armao 128/2 B [75] Inventor; Osamu Komiya, Tokyo, Japan 3,391,690 7/1968 Armao 128/2 B 3,404,677 10/1968 Springer 128/2 B [73] Assigneez Olympic Optical Co., Ltd., Tokyo,
Japan FOREIGN PATENTS OR APPLICATIONS Filed: Nov. 21, Germany B Appl' 308,467 Primary Examiner-Aldrich F. Medbery V Attorney, Agent, or Firm-Flynn & Frishauf [30] Foreign Application Priority Data Nov. 24, 1971 Japan 46-110082 [57] ABSTRACT 52 us. Cl. 128/2 B, 128/318 A forceps assembly has a fmeps atached 51 im. C1 -A6lb 10/00 the end a flexlble tube and a scssms pened I and closed by a wire running through said flexible [58] Flew of Search 28/2 3 tube, at least one of the opposing blades of the scissors having a clamp member for clamping a piece of cellut d t t l References Cited lar tissue 0 be scissore be ween he 0 amp member and the other of the scissor blades. UNITED STATES PATENTS 487,068 11/1892 Drinkwater et a1 ..12s/307 awing Figures 2 I I 7 L J 5 (O '1 "I H 1 FORCEPS ASSEMBLY FOR REMOVING CELLULAR TISSUE FROM THE BODY CAVITIES The present invention relates to a forceps assembly in use for removing cellular tissue from the inner walls of the body cavities.
In recent years, .pieces of tissues are extracted from various body walls for medical examination. Practically, a forceps is inserted together with an endoscope deep into the body cavity and cuts and removes off the body walls tissue pieces necessary for examination, for
instance, polyps. The forceps now in practical use are the so-called cap-forceps, each comprised of a pair of cups which are swung open and put together. The cupforceps, however, tear cellular tissue bit by bit away from the body walls and inevitably make the tissue removal difficult and time-consuming.
The object of the present invention is to provide a forceps which can cut and clamp a relatively large piece of cellular tissue.
SUMMARY OF THE INVENTION The forceps assembly according to the present invention comprises a forceps holder attached to the end of a flexible tube, a pair of scissors held by said forceps holder and constituted by a pair of blades opened and closed by a wire running through said flexible tube, and at least one clamp member protruding from the back of one of said paired blades for clamping a piece of cut off cellular tissue between the clamp member and the other of the pair of scissor blades.
The present invention can be more fully understood from the following detailed description when taken in connection with the accompanying drawing, in which:
FIG. 1 is a side sectional view of one embodiment of the present invention;
FIG. 2 is a front sectional view of the embodiment of FIG. 1 with its scissors in the opened state; and
FIG. 3 is a front sectional view of the embodiment of FIG. 1 with its scissors in the closed state.
The structure and function of the forceps assembly according to the present invention will be more fully understood with reference to FIGS. 1, 2 and 3.
A flexible tube 11 is made of a spiraled plastic wire or tape covered with a plastic layer or layers, and has a wire 22 running therethrough. A forceps holder 12 is attached to said flexible tube 11. Fixed to forceps holder 12 are a pair of support plates 13 in parallel to each other, between the front portions of which a pair of scissors 17 made of opposing blades 15 and 16 are pivotally disposed by a pin 14. A connector 18 is so disposed in forceps holder 12 as to slide back and forth therethrough and is connected to the end of wire 22. A pair of link members 19 and 20 are pivoted on the tip of connector 18 at one end and on respective blades 15 and 16 at the other end. Consequently, a pair of scissors 17 are opened and closed as wire 22 is moved through flexible tube 11.
Either said blade 15 or 16 blade 16 in FIGS. 2 and 3 has a clamp member 23 having an L-shaped section and protruding from the back of the blade. In this clamp member 23 there is perforated a window 24, which helps prevent any damage to the clamped cellular tissue that would otherwise be inevitable.
The forceps assembly according to the present invention is manipulated in the following manner to, for'example, remove a polyp 26 as illustrated in FIGS. 2 and 3 from the body wall 25.
First, the forceps assembly is inserted into the body cavity until its pair of scissors 17 come into contact with the polyp 26 to be cut and removed. Secondly,.the pair of scissors 17 are swung open by the push of wire 12 and blades 15 and 16 are so moved as to sandwich the neck of polyp 36. Thirdly, the pair of scissors 17 are closed to cut the neck of polyp 26, which is simultaneously clamped and held steady between blade 15 and clamp member 23. Finally the, forceps assembly is withdrawn from the body cavity with polyp 26 clamped steady between blade 15 and clamp member 23.
By virtue of the clamp member 23 attached to one of the blades 15 and 16, polyp 26 is held so firmly by the pair of scissors 17 that it never slips out of the pair of scissors 17 while it is being extracted from the body cavity. Thus, the forceps assembly according to this invention can remove without fail pieces of cellular tissue from the body cavities.
The embodiment of this invention described above is provided with a single clamp member with a window on one of the scissor blades. If preferable or necessary, each scissor'blade is provided with a clamp member, which may or may not have a window.
What is claimed is:
l. A forceps assembly attached to one end of a flexible tube with a wire running therethrough for removing cellular tissue from body cavities, comprising:
a forceps holder attached to the end of said flexible tube;
a pair of scissors held by said forceps holder, having a pair of cutting blades which are opened and closed respectively by push and pull of said wire, said blades having respective inner surfaces cooperating to serve as said scissors, and respective outer surfaces; and
means for clamping severed cellular tissue including at least one clamp member protruding from the back of one of said blades, said clamp member being cantilevered and extending in a direction toward the other of said blades and adjacent the outer surface of said other blade and cooperating with the outer surface of said other blade so as to clamp a piece of cellular tissue cut by said pair of scissors between said cantilevered clamp member and the outer surface of said other blade.
2. A forceps assembly according to claim 1 wherein said clamp member has a window therein for lessening the pressure exerted on the clamped piece of cellular tissue.
3. A forceps assembly according to claim 1 comprising a pair of link members respectively pivotally connected to said pair of blades, said link members being coupled to said wire for respectively opening and closing said blades by push and pull of said wire.
4. A forceps assembly according to claim 1 comprising at least one support plate fixedly connected to said forceps holder, said scissor blades being pivotally con nected to said at least one support plate; and a pair of link members respectively coupled to said pair of scissor blades, said link members being pivotally coupled to said wire.
3,840,003 I 3 4 5. A forceps assembly according to claim 1 wherein the combination of said at least one clamp member and said at least one clamp member has a generally L- said one of said blades has a portion having a generally shaped cross-section. U-shaped cross-section.
6. A forceps assembly according to claim 1 wherein

Claims (6)

1. A forceps assembly attached to one end of a flexible tube with a wire running therethrough for removing cellular tissue from body cavities, comprising: a forceps holder attached to the end of said flexible tube; a pair of scissors held by said forceps holder, having a pair of cutting blades which are opened and closed respectively by push and pull of said wire, said blades having respective inner surfaces cooperating to serve as said scissors, and respective outer surfaces; and means for clamping severed cellular tissue including at least one clamp member protruding from the back of one of said blades, said clamp member being cantilevered and extending in a direction toward the other of said blades and adjacent the outer surface of said other blade and cooperating with the outer surface of said other blade so as to clamp a piece of cellular tissue cut by said pair of scissors between said cantilevered clamp member and the outer surface of said other blade.
2. A forceps assembly according to claim 1 wherein said clamp member has a window therein for lessening the pressure exerted on the clamped piece of cellular tissue.
3. A forceps assembly according to claim 1 comprising a pair of link members respectively pivotally connected to said pair of blades, said link members being coupled to said wire for respectively opening and closing said blades by push and pull of said wire.
4. A forceps assembly according to claim 1 comprising at least one support plate fixedly connected to said forceps holder, said scissor blades being pivotally connected to said at least one support plate; and a pair of link members respectively coupled to said pair of scissor blades, said link members being pivotally coupled to said wire.
5. A forceps assembly according to claim 1 wherein said at least one clamp member has a generally L-shaped cross-section.
6. A forceps assembly according to claim 1 wherein the combination of said at least one clamp member and said one of said blades has a portion having a generally U-shaped cross-section.
US00308467A 1971-11-24 1972-11-21 Forceps assembly for removing cellular tissue from the body cavities Expired - Lifetime US3840003A (en)

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Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4224739A (en) * 1978-08-08 1980-09-30 Frank Emblidge Pruning tool with flexible headpole connection
US4597385A (en) * 1983-04-29 1986-07-01 Watson Trevor F Biopsy instrument
US4763669A (en) * 1986-01-09 1988-08-16 Jaeger John C Surgical instrument with adjustable angle of operation
US4785825A (en) * 1984-12-28 1988-11-22 Humboldt--Universitaet zu Berlin Safety biopsy forceps
US4817630A (en) * 1985-06-04 1989-04-04 Schintgen Jean Marie Control cable for a biopsy forceps
US4887612A (en) * 1988-04-27 1989-12-19 Esco Precision, Inc. Endoscopic biopsy forceps
US4982500A (en) * 1989-11-20 1991-01-08 Five Star Idea, Inc. Instrument for cutting or gripping
US5048538A (en) * 1989-11-27 1991-09-17 Vance Products Incorporated Biopsy instrument
US5261918A (en) * 1992-04-27 1993-11-16 Edward Weck Incorporated Sheathed surgical instrument and applicator kit
US5312434A (en) * 1992-12-21 1994-05-17 Lawrence Crainich Medical instrument
US5373854A (en) * 1993-07-15 1994-12-20 Kolozsi; William Z. Biopsy apparatus for use in endoscopy
US5425737A (en) * 1992-04-08 1995-06-20 American Cyanamid Co. Surgical purse string suturing instrument and method
US5476099A (en) * 1994-08-31 1995-12-19 Boston Scientific Corporation High velocity tissue sample cutter
US5478347A (en) * 1990-10-05 1995-12-26 United States Surgical Corporation Endoscopic surgical instrument having curved blades
US5486189A (en) * 1990-10-05 1996-01-23 United States Surgical Corporation Endoscopic surgical instrument
US5489292A (en) * 1990-10-05 1996-02-06 United States Surgical Corporation Endoscopic surgical instrument with grip enhancing means
US5509922A (en) * 1990-10-05 1996-04-23 United States Surgical Corporation Endoscopic surgical instrument
US5522830A (en) * 1990-10-05 1996-06-04 United States Surgical Corporation Endoscopic surgical instrument
US5609599A (en) * 1995-07-27 1997-03-11 Levin; John M. Leak clip
US5626609A (en) * 1990-10-05 1997-05-06 United States Surgical Corporation Endoscopic surgical instrument
US5628758A (en) * 1994-03-31 1997-05-13 Aerztliche Mechanik Udo Lindeke & Sohn Medical instrument for directed placement of a knot
US5681348A (en) * 1994-03-31 1997-10-28 Olympus Optical Co., Ltd. Endoscope-specific therapeutic instrument
US5797537A (en) * 1996-02-20 1998-08-25 Richard-Allan Medical Industries, Inc. Articulated surgical instrument with improved firing mechanism
US20030187453A1 (en) * 1999-12-10 2003-10-02 Fridolin Schlapfer Device for distracting or compressing bones or bone fragments
US20040098038A1 (en) * 2000-12-07 2004-05-20 Dieter Lang Medical instrument
US20050101991A1 (en) * 2003-11-12 2005-05-12 Applied Medical Resources Corporation Overmolded grasper jaw
US7762960B2 (en) 2005-05-13 2010-07-27 Boston Scientific Scimed, Inc. Biopsy forceps assemblies

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US487068A (en) * 1892-11-29 Parturition-shears
US2434550A (en) * 1945-12-28 1948-01-13 Daniel J Daniel Combination implement
US2955592A (en) * 1955-12-29 1960-10-11 Kenneth S Maclean Diagnostic instrument
US2994321A (en) * 1958-02-26 1961-08-01 Mueller & Company V Punch
US3353531A (en) * 1965-10-22 1967-11-21 Armao Thomas Anthony Biopsy instrument with specimen lifting means
US3391690A (en) * 1965-04-05 1968-07-09 Armao Thomas Anthony Biopsy instrument including tissue heating or cooling means and method of use
US3404677A (en) * 1965-07-08 1968-10-08 Henry A. Springer Biopsy and tissue removing device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US487068A (en) * 1892-11-29 Parturition-shears
US2434550A (en) * 1945-12-28 1948-01-13 Daniel J Daniel Combination implement
US2955592A (en) * 1955-12-29 1960-10-11 Kenneth S Maclean Diagnostic instrument
US2994321A (en) * 1958-02-26 1961-08-01 Mueller & Company V Punch
US3391690A (en) * 1965-04-05 1968-07-09 Armao Thomas Anthony Biopsy instrument including tissue heating or cooling means and method of use
US3404677A (en) * 1965-07-08 1968-10-08 Henry A. Springer Biopsy and tissue removing device
US3353531A (en) * 1965-10-22 1967-11-21 Armao Thomas Anthony Biopsy instrument with specimen lifting means

Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4224739A (en) * 1978-08-08 1980-09-30 Frank Emblidge Pruning tool with flexible headpole connection
US4597385A (en) * 1983-04-29 1986-07-01 Watson Trevor F Biopsy instrument
US4785825A (en) * 1984-12-28 1988-11-22 Humboldt--Universitaet zu Berlin Safety biopsy forceps
US4817630A (en) * 1985-06-04 1989-04-04 Schintgen Jean Marie Control cable for a biopsy forceps
US4763669A (en) * 1986-01-09 1988-08-16 Jaeger John C Surgical instrument with adjustable angle of operation
US4887612A (en) * 1988-04-27 1989-12-19 Esco Precision, Inc. Endoscopic biopsy forceps
US4982500A (en) * 1989-11-20 1991-01-08 Five Star Idea, Inc. Instrument for cutting or gripping
US5048538A (en) * 1989-11-27 1991-09-17 Vance Products Incorporated Biopsy instrument
US5489292A (en) * 1990-10-05 1996-02-06 United States Surgical Corporation Endoscopic surgical instrument with grip enhancing means
US5626609A (en) * 1990-10-05 1997-05-06 United States Surgical Corporation Endoscopic surgical instrument
US5522830A (en) * 1990-10-05 1996-06-04 United States Surgical Corporation Endoscopic surgical instrument
US5509922A (en) * 1990-10-05 1996-04-23 United States Surgical Corporation Endoscopic surgical instrument
US5478347A (en) * 1990-10-05 1995-12-26 United States Surgical Corporation Endoscopic surgical instrument having curved blades
US5486189A (en) * 1990-10-05 1996-01-23 United States Surgical Corporation Endoscopic surgical instrument
US5425737A (en) * 1992-04-08 1995-06-20 American Cyanamid Co. Surgical purse string suturing instrument and method
US5261918A (en) * 1992-04-27 1993-11-16 Edward Weck Incorporated Sheathed surgical instrument and applicator kit
US5312434A (en) * 1992-12-21 1994-05-17 Lawrence Crainich Medical instrument
US5373854A (en) * 1993-07-15 1994-12-20 Kolozsi; William Z. Biopsy apparatus for use in endoscopy
US5628758A (en) * 1994-03-31 1997-05-13 Aerztliche Mechanik Udo Lindeke & Sohn Medical instrument for directed placement of a knot
US5681348A (en) * 1994-03-31 1997-10-28 Olympus Optical Co., Ltd. Endoscope-specific therapeutic instrument
US5476099A (en) * 1994-08-31 1995-12-19 Boston Scientific Corporation High velocity tissue sample cutter
US5609599A (en) * 1995-07-27 1997-03-11 Levin; John M. Leak clip
US5797537A (en) * 1996-02-20 1998-08-25 Richard-Allan Medical Industries, Inc. Articulated surgical instrument with improved firing mechanism
US7008432B2 (en) * 1999-12-10 2006-03-07 Synthes Device for distracting or compressing bones on bone fragments
US20030187453A1 (en) * 1999-12-10 2003-10-02 Fridolin Schlapfer Device for distracting or compressing bones or bone fragments
US20040098038A1 (en) * 2000-12-07 2004-05-20 Dieter Lang Medical instrument
US7211099B2 (en) * 2000-12-07 2007-05-01 Karl Storz Gmbh & Co. Kg Medical instrument
US20050101991A1 (en) * 2003-11-12 2005-05-12 Applied Medical Resources Corporation Overmolded grasper jaw
US7494501B2 (en) 2003-11-12 2009-02-24 Applied Medical Resources Corporation Overmolded grasper jaw
US20090131975A1 (en) * 2003-11-12 2009-05-21 Applied Medical Resources Corporation Overmolded grasper jaw
US8545534B2 (en) 2003-11-12 2013-10-01 Applied Medical Resources Corporation Overmolded grasper jaw
US9161770B2 (en) 2003-11-12 2015-10-20 Applied Medical Resources Corporation Overmolded grasper jaw
US7762960B2 (en) 2005-05-13 2010-07-27 Boston Scientific Scimed, Inc. Biopsy forceps assemblies
US8317726B2 (en) 2005-05-13 2012-11-27 Boston Scientific Scimed, Inc. Biopsy forceps assemblies
US8672859B2 (en) 2005-05-13 2014-03-18 Boston Scientific Scimed, Inc. Biopsy forceps assemblies

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Publication number Publication date
DE2257073A1 (en) 1973-05-30
DE2257073C3 (en) 1979-10-31
DE2257073B2 (en) 1979-03-15

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