US3585985A - Surgical instrument for biopsy - Google Patents

Surgical instrument for biopsy Download PDF

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US3585985A
US3585985A US783899A US3585985DA US3585985A US 3585985 A US3585985 A US 3585985A US 783899 A US783899 A US 783899A US 3585985D A US3585985D A US 3585985DA US 3585985 A US3585985 A US 3585985A
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shank
handle
tip
assembly
surgical instrument
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US783899A
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Wilbur J Gould
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
    • A61B10/02—Instruments for taking cell samples or for biopsy
    • A61B10/06—Biopsy forceps, e.g. with cup-shaped jaws

Definitions

  • Pace Attorney- Yuter & Fields ABSTRACT A surgical instrument comprising a first assembly member having a handle portion, a shank portion and a tip portion all substantially fixed in spatial and structural relation to each other, a second handle member hingedly connected to the first assembly member at the juncture of the handle and shank portions, a shank member hingedly connected to the second handle member and slidably mating with the shank portion of the first assembly member, and a tip member hingedly connected to the shank member at the end thereof remote from the handle-shank hinge and hingedly connected to the first assembly member at the juncture of the tip and shank portions thereof, this tip member being adapted to mate with the tip portion of the first assembly member when the handle member and the handle portion of the first assembly member are moved toward each other.
  • This invention relates in general to a surgical instrument and more particularly to an improved surgical instrument for use in operations and biopsies of the larynx and trachea.
  • Conventional laryngeal and tracheal surgical instruments generally consist of a scissorslike tool designed and dimensioned for use in parts of the body inaccessible for open operation being provided at its insertion end with a punching and/or cutting element. This instrument is inserted into the larynx or trachea and an opening and/or incision made.
  • the known device with its punching and/or cutting end is disadvantageous in that it does more damage than is necessary to the tissues involved and further must be inserted with the greatest of care in order to avoid inadvertent penetration of a blood vessel, membrane or musculo structure. Further, withdrawal of tissue and especially small sections of tissue which has been excised for palliative or study purposes (biopsy) cannot be carried out with the same instrument.
  • An object of this invention is the provision of a surgical instrument which may advantageously be employed in internal surgical procedures.
  • a further object of this invention is the provision of a surgical instrument which may advantageously be employed in surgical procedures involving the larynx, pharynx, nose, trachea, bronchi and like areas.
  • Another object of this invention is to provide a more easily, more safely and less painfully inserted and withdrawn surgical instrument.
  • Still another object of this invention is to provide a surgical instrument adapted to both sever and remove the severed tissue.
  • FIG. I is a side elevation of the completely assembled instrument
  • FIG. 2 is a side elevation of an instrument in accordance with the invention showing the handles in closed position;
  • FIG. 3 is a side elevation of an instrument in accordance with the invention showing the handles in open position;
  • FIG. 4 is a sectional view along line 4-4 of FIG. 2 looking in the direction of the arrows;
  • FIG. 5 is a partial side elevation showing the forward portion with the tips in closed position
  • FIG. 6 is a partial side elevation showing the forward portion with the tips in open position.
  • FIG. 7 is a sectional view along line 7-7 of FIG. 5 looking in the direction of the arrows.
  • the instrument comprises a first handle, shank and tip assembly member 1 having a rearward hinge 2 and a forward hinge 3.
  • a second handle member 4 is hingedly connected via the rearward hinge 2 to the first assembly member 1.
  • a movable shank 5 is hingedly connected via a pivot pin 6 to the second handle member 4.
  • the hinge 2 includes an idler member 13 which is pivoted to the first assembly member I by a pivot pin 14.
  • the member 13 is received in an appropriate slot substantially at the junction of the handle and shank portions of the first assembly member and extends upwardly therefrom.
  • the outer handle 4 is rigidly connected to the idler member 13 so that the outer handle 4 may be pivoted about the pin I4 via the member 13 toward or away from the stationary inner handle portion of the assembly 1.
  • the end of the shank 5 receives the member I3 in an appropriate slot and is connectud thereto by the pivot pin 6.
  • movement of the handle 4 away from the handle portion of the assembly 1 causes rotation of the member 13 about the pin 14 and thereby causes concomitant forward movement of the shank 5 via the pin connection 6.
  • Reverse movement of the handle 4 will obviously cause rearward movement of the shank 5.
  • This hinge arrangement permits the surgeon to accurately and carefully control the operation of the instrument at all times.
  • the shank 5 is aligned and mating with the shank portion 7 of the first assembly member 1.
  • a movable tip member 8 is provided hingedly connected to the movable shank 5 by a hinge 9 and via the forward hinge 3 to the shank portion 7 of the first assembly member 1.
  • the tip portion 10 of the first assembly member 1 is in mating relation to the tip member 8.
  • a finger rest 11 is suitably provided on the first assembly member 1 and a screw adjustable safety stop member 12 is suitably operatively engaged through a threaded bore in the second handle member 4.
  • This stop member 12 preferably in the form of a setscrew, is adapted to contact the handle portion of the first assembly member 1 to limit the minimum closing distance between the handles.
  • the tip portion 10 and the tip member 8 are as is indicated in FIGS. 5 and 6 constructed so as to be concave with respect to each other in their mating surfaces.
  • the uppermost edges of tip portion 10 and tip member 8 are hollow ground to provide a cutting edge facilitating the removal, i.e., excision of tissue.
  • the forward end of the instrument as formed by tip portion 10 and tip member 8 has a blunt but rounded end.
  • the surgeon opens the operating handles 1 and 4 and thereby opens the tip portion 10 and tip member 8 with respect to each other.
  • the surgeon then closes the operating handles, handle member 4 is moved towards assembly member 1 with the effect that a section of tissue approximately corresponding to the inner area of the combined tip portion 10 and tip member 8 is excised.
  • the excised tissue is receivedand held within the receptacle formed by the closed forward end of the instrument and is safely and easily removed as the instrument is withdrawn.
  • the instrumentality may be sterilized in the autoclave in the manner followed in sterilizing the conventional surgical tools.
  • a surgical instrument comprising a first assembly member having a first inner handle member, a first shank member and a first tip member, all substantially fixed in spatial and structural relation to each other; an idler member pivotally connected to said first assembly member at the juncture of said first handle and first shank members thereof; a second handle member connected to said idler member and movable therewith; a second shank member hingedly connected to said idler member and slidably mating with said first shank member of said first assembly member; and a second tip member hingedly connected to said second shank member at the end thereof remote from said idler member and hingedly connected to said first assembly member at the junction of the first tip and first shank members thereof, said second tip member being adapted to mate with the first tip member of said first assembly member upon moving the second handle member toward the first handle member of said first assembly member.
  • a surgical instrument according to claim 1 wherein in said first assembly member, said first shank member and first handle member are disposed at an angle to each other opposite to the angular direction at which the first tip member is disposed to said first shank member.
  • a surgical instrument according to claim 1 wherein the forward portion of said first shank member of said first assembly member surrounds the forward portion of said second shank member.
  • a surgical instrument including a screw safety stop member connected with said second handle member and adapted to be moved into abutment with said first handle member to limit the distance of movement of said

Abstract

A surgical instrument comprising a first assembly member having a handle portion, a shank portion and a tip portion all substantially fixed in spatial and structural relation to each other, a second handle member hingedly connected to the first assembly member at the juncture of the handle and shank portions, a shank member hingedly connected to the second handle member and slidably mating with the shank portion of the first assembly member, and a tip member hingedly connected to the shank member at the end thereof remote from the handle-shank hinge and hingedly connected to the first assembly member at the juncture of the tip and shank portions thereof, this tip member being adapted to mate with the tip portion of the first assembly member when the handle member and the handle portion of the first assembly member are moved toward each other.

Description

United States Patent inventor Wilbur J. Gould 115 Central Park West, New York, N.Y. 10023 Appl. No. 783,899
Filed Dec. 16, 1968 Patented June 22, 1971 SURGICAL [NSI'RUMENT FOR BIOPSY 7 Claims, 7 Drawing Figs.
03. CI. 128/2, 128/318, 128/321 Int. Cl. ..A6lbl0/00, A61b 17/28, A611: 17/32 FleldoiSearch 128/2, 321, 305, 318
References Cited UNITED STATES PATENTS 2,113,246 4/1938 Wappler 128/321 3/1953 Siebrandt 128/321 X 2,790,437 4/1957 Moore Primary Examiner-Richard A. Gaudet Assistant Examiner-Channing L. Pace Attorney- Yuter & Fields ABSTRACT: A surgical instrument comprising a first assembly member having a handle portion, a shank portion and a tip portion all substantially fixed in spatial and structural relation to each other, a second handle member hingedly connected to the first assembly member at the juncture of the handle and shank portions, a shank member hingedly connected to the second handle member and slidably mating with the shank portion of the first assembly member, and a tip member hingedly connected to the shank member at the end thereof remote from the handle-shank hinge and hingedly connected to the first assembly member at the juncture of the tip and shank portions thereof, this tip member being adapted to mate with the tip portion of the first assembly member when the handle member and the handle portion of the first assembly member are moved toward each other.
PATENTED JUN22 1971 INVENTOR WILBUR J. GOULD BY g t ATTORNEYS.
SURGICAL INSTRUMENT FOR BIOPSY This invention relates in general to a surgical instrument and more particularly to an improved surgical instrument for use in operations and biopsies of the larynx and trachea.
Conventional laryngeal and tracheal surgical instruments generally consist of a scissorslike tool designed and dimensioned for use in parts of the body inaccessible for open operation being provided at its insertion end with a punching and/or cutting element. This instrument is inserted into the larynx or trachea and an opening and/or incision made. The known device with its punching and/or cutting end is disadvantageous in that it does more damage than is necessary to the tissues involved and further must be inserted with the greatest of care in order to avoid inadvertent penetration of a blood vessel, membrane or musculo structure. Further, withdrawal of tissue and especially small sections of tissue which has been excised for palliative or study purposes (biopsy) cannot be carried out with the same instrument. This requires the insertion of a second instrument as for example forceps. The change from one instrument to another gives rise to delays and requires much skill and effort. During such manipulations the presence of a cutting edge increases the possibility of injury to the delicate tissue as does the additional movement involved in the changeover.
An object of this invention is the provision of a surgical instrument which may advantageously be employed in internal surgical procedures.
A further object of this invention is the provision of a surgical instrument which may advantageously be employed in surgical procedures involving the larynx, pharynx, nose, trachea, bronchi and like areas.
Another object of this invention is to provide a more easily, more safely and less painfully inserted and withdrawn surgical instrument.
Still another object of this invention is to provide a surgical instrument adapted to both sever and remove the severed tissue.
Many other objects, advantages and features of invention reside in the particular construction, combination and arrangement of parts involved in the embodiments of the invention and its practice as will be understood from the following description and accompanying drawing wherein:
FIG. I is a side elevation of the completely assembled instrument;
FIG. 2 is a side elevation of an instrument in accordance with the invention showing the handles in closed position;
FIG. 3 is a side elevation of an instrument in accordance with the invention showing the handles in open position;
FIG. 4 is a sectional view along line 4-4 of FIG. 2 looking in the direction of the arrows;
FIG. 5 is a partial side elevation showing the forward portion with the tips in closed position;
FIG. 6 is a partial side elevation showing the forward portion with the tips in open position; and
FIG. 7 is a sectional view along line 7-7 of FIG. 5 looking in the direction of the arrows.
Referring to the drawing, the instrument comprises a first handle, shank and tip assembly member 1 having a rearward hinge 2 and a forward hinge 3. A second handle member 4 is hingedly connected via the rearward hinge 2 to the first assembly member 1. A movable shank 5 is hingedly connected via a pivot pin 6 to the second handle member 4. More specifically, the hinge 2 includes an idler member 13 which is pivoted to the first assembly member I by a pivot pin 14. The member 13 is received in an appropriate slot substantially at the junction of the handle and shank portions of the first assembly member and extends upwardly therefrom. The outer handle 4 is rigidly connected to the idler member 13 so that the outer handle 4 may be pivoted about the pin I4 via the member 13 toward or away from the stationary inner handle portion of the assembly 1. The end of the shank 5 receives the member I3 in an appropriate slot and is connectud thereto by the pivot pin 6. Thus, movement of the handle 4 away from the handle portion of the assembly 1 causes rotation of the member 13 about the pin 14 and thereby causes concomitant forward movement of the shank 5 via the pin connection 6. Reverse movement of the handle 4 will obviously cause rearward movement of the shank 5. This hinge arrangement permits the surgeon to accurately and carefully control the operation of the instrument at all times.
The shank 5 is aligned and mating with the shank portion 7 of the first assembly member 1. A movable tip member 8 is provided hingedly connected to the movable shank 5 by a hinge 9 and via the forward hinge 3 to the shank portion 7 of the first assembly member 1. The tip portion 10 of the first assembly member 1 is in mating relation to the tip member 8. A finger rest 11 is suitably provided on the first assembly member 1 and a screw adjustable safety stop member 12 is suitably operatively engaged through a threaded bore in the second handle member 4. This stop member 12, preferably in the form of a setscrew, is adapted to contact the handle portion of the first assembly member 1 to limit the minimum closing distance between the handles.
The tip portion 10 and the tip member 8 are as is indicated in FIGS. 5 and 6 constructed so as to be concave with respect to each other in their mating surfaces. The uppermost edges of tip portion 10 and tip member 8 are hollow ground to provide a cutting edge facilitating the removal, i.e., excision of tissue. The forward end of the instrument as formed by tip portion 10 and tip member 8 has a blunt but rounded end.
When the blunt forward end of the surgical instrument has been inserted to the desired location in the body, the surgeon opens the operating handles 1 and 4 and thereby opens the tip portion 10 and tip member 8 with respect to each other. The surgeon then closes the operating handles, handle member 4 is moved towards assembly member 1 with the effect that a section of tissue approximately corresponding to the inner area of the combined tip portion 10 and tip member 8 is excised. The excised tissue is receivedand held within the receptacle formed by the closed forward end of the instrument and is safely and easily removed as the instrument is withdrawn.
The instrumentality may be sterilized in the autoclave in the manner followed in sterilizing the conventional surgical tools.
What I claim is:
l. A surgical instrument comprising a first assembly member having a first inner handle member, a first shank member and a first tip member, all substantially fixed in spatial and structural relation to each other; an idler member pivotally connected to said first assembly member at the juncture of said first handle and first shank members thereof; a second handle member connected to said idler member and movable therewith; a second shank member hingedly connected to said idler member and slidably mating with said first shank member of said first assembly member; and a second tip member hingedly connected to said second shank member at the end thereof remote from said idler member and hingedly connected to said first assembly member at the junction of the first tip and first shank members thereof, said second tip member being adapted to mate with the first tip member of said first assembly member upon moving the second handle member toward the first handle member of said first assembly member.
2. A surgical instrument according to claim 1 wherein in said first assembly member, said first shank member and first handle member are disposed at an angle to each other opposite to the angular direction at which the first tip member is disposed to said first shank member.
3. A surgical instrument according to claim 1 wherein said first tip member and said second tip member are concave with respect to each other in their mating surfaces.
4. A surgical instrument according to claim 1 wherein the forward portion of said first shank member of said first assembly member surrounds the forward portion of said second shank member.
5. A surgical instrument according to claim 1 wherein said second shank member is keyed to said first shank member along the length thereof.
6. A surgical instrument according to claim 1 including a screw safety stop member connected with said second handle member and adapted to be moved into abutment with said first handle member to limit the distance of movement of said

Claims (7)

1. A surgical instrument comprising a first assembly member having a first inner handle member, a first shank member and a first tip member, all substantially fixed in spatial and structural relation to each other; an idler member pivotally connected to said first assembly Member at the juncture of said first handle and first shank members thereof; a second handle member connected to said idler member and movable therewith; a second shank member hingedly connected to said idler member and slidably mating with said first shank member of said first assembly member; and a second tip member hingedly connected to said second shank member at the end thereof remote from said idler member and hingedly connected to said first assembly member at the junction of the first tip and first shank members thereof, said second tip member being adapted to mate with the first tip member of said first assembly member upon moving the second handle member toward the first handle member of said first assembly member.
2. A surgical instrument according to claim 1 wherein in said first assembly member, said first shank member and first handle member are disposed at an angle to each other opposite to the angular direction at which the first tip member is disposed to said first shank member.
3. A surgical instrument according to claim 1 wherein said first tip member and said second tip member are concave with respect to each other in their mating surfaces.
4. A surgical instrument according to claim 1 wherein the forward portion of said first shank member of said first assembly member surrounds the forward portion of said second shank member.
5. A surgical instrument according to claim 1 wherein said second shank member is keyed to said first shank member along the length thereof.
6. A surgical instrument according to claim 1 including a screw safety stop member connected with said second handle member and adapted to be moved into abutment with said first handle member to limit the distance of movement of said second handle member toward said first handle member.
7. A surgical instrument according to claim 1 including a finger rest provided on said first assembly member.
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Cited By (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3814102A (en) * 1972-10-12 1974-06-04 B Thal Surgical instrument
US4243047A (en) * 1979-02-07 1981-01-06 Auburn Enterprises, Inc. Instrument for taking tissue specimens
US4271838A (en) * 1978-04-05 1981-06-09 Laschal Instruments Corp. Suture cutter
US4369788A (en) * 1980-01-31 1983-01-25 Goald Harold J Reversed forceps for microdisc surgery
US4416278A (en) * 1979-07-26 1983-11-22 Miller Joseph E Bone plug cutter
US4572185A (en) * 1984-02-23 1986-02-25 Mark Rich Nonplanar surgical needle holder and related suturing method
US4597385A (en) * 1983-04-29 1986-07-01 Watson Trevor F Biopsy instrument
US4674501A (en) * 1986-04-14 1987-06-23 Greenberg I Melbourne Surgical instrument
US4919152A (en) * 1987-03-02 1990-04-24 Ralph Ger Method of closing the opening of a hernial sac
US4944443A (en) * 1988-04-22 1990-07-31 Innovative Surgical Devices, Inc. Surgical suturing instrument and method
US4944093A (en) * 1987-10-26 1990-07-31 Richard Wolf Gmbh Forceps with shearing jaws
US5048538A (en) * 1989-11-27 1991-09-17 Vance Products Incorporated Biopsy instrument
US5125553A (en) * 1987-03-02 1992-06-30 Stryker Sales Corporation Surgical suturing instrument and method
US5201752A (en) * 1990-09-27 1993-04-13 Pod, Inc. Cholecystectomy dissector instrument
US5220928A (en) * 1983-08-22 1993-06-22 Stryker Sales Corporation Surgical procedure for joining tissue in an internal body cavity
US5293878A (en) * 1991-04-04 1994-03-15 Symbiosis Corporation Endoscopic surgical instruments having stepped rotatable end effectors
US5300081A (en) * 1992-10-09 1994-04-05 United States Surgical Corporation Surgical clip applier having clip advancement control
US5382254A (en) * 1989-07-18 1995-01-17 United States Surgical Corporation Actuating handle for surgical instruments
US5382255A (en) * 1993-01-08 1995-01-17 United States Surgical Corporation Apparatus and method for assembly of surgical instruments
US5383881A (en) * 1989-07-18 1995-01-24 United States Surgical Corporation Safety device for use with endoscopic instrumentation
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
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
US5507772A (en) * 1993-05-25 1996-04-16 Depuy Inc. Cleanable, inspectable, and replaceable surgical instrument
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
US5613977A (en) * 1992-07-22 1997-03-25 Friatec Ag Keramik-Und-Kunstoffwerke Gripping and/or cutting instrument for endoscopic purposes
US5626609A (en) * 1990-10-05 1997-05-06 United States Surgical Corporation Endoscopic surgical instrument
US5746740A (en) * 1992-09-23 1998-05-05 United States Surgical Corporation Surgical biopsy forceps apparatus
US5769841A (en) * 1995-06-13 1998-06-23 Electroscope, Inc. Electrosurgical apparatus for laparoscopic and like procedures
US5833696A (en) * 1996-10-03 1998-11-10 United States Surgical Corporation Apparatus for applying surgical clips
US6569178B1 (en) * 1999-03-09 2003-05-27 Olympus Optical Co., Ltd. Ultrasonic coagulating/cutting apparatus
US20040012855A1 (en) * 1996-02-29 2004-01-22 3M Innovative Properties Company Optical film with co-continuous phases
US20050101991A1 (en) * 2003-11-12 2005-05-12 Applied Medical Resources Corporation Overmolded grasper jaw
US20060041251A1 (en) * 2004-08-17 2006-02-23 Odell Roger C Electrosurgical system and method
US20060041253A1 (en) * 2004-08-17 2006-02-23 Newton David W System and method for performing an electrosurgical procedure
US20060041252A1 (en) * 2004-08-17 2006-02-23 Odell Roger C System and method for monitoring electrosurgical instruments
US20090112204A1 (en) * 2007-10-26 2009-04-30 Encision, Inc. Multiple Parameter Fault Detection in Electrosurgical Instrument Shields
US8007494B1 (en) 2006-04-27 2011-08-30 Encision, Inc. Device and method to prevent surgical burns
FR2968189A1 (en) * 2010-12-02 2012-06-08 Collin Medical instrument for use during micro surgery of patient under vision of microscope, has actuating arm moved with respect to reference arm for actuating operating head, where reference arm has housing to receive finger of hand of user
US8251989B1 (en) 2006-06-13 2012-08-28 Encision, Inc. Combined bipolar and monopolar electrosurgical instrument and method
US9314294B2 (en) 2008-08-18 2016-04-19 Encision, Inc. Enhanced control systems including flexible shielding and support systems for electrosurgical applications
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US2790437A (en) * 1955-10-12 1957-04-30 Welch Allyn Inc Surgical instrument

Cited By (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3814102A (en) * 1972-10-12 1974-06-04 B Thal Surgical instrument
US4271838A (en) * 1978-04-05 1981-06-09 Laschal Instruments Corp. Suture cutter
US4243047A (en) * 1979-02-07 1981-01-06 Auburn Enterprises, Inc. Instrument for taking tissue specimens
US4416278A (en) * 1979-07-26 1983-11-22 Miller Joseph E Bone plug cutter
US4369788A (en) * 1980-01-31 1983-01-25 Goald Harold J Reversed forceps for microdisc surgery
US4597385A (en) * 1983-04-29 1986-07-01 Watson Trevor F Biopsy instrument
US5220928A (en) * 1983-08-22 1993-06-22 Stryker Sales Corporation Surgical procedure for joining tissue in an internal body cavity
US4572185A (en) * 1984-02-23 1986-02-25 Mark Rich Nonplanar surgical needle holder and related suturing method
DE3711377A1 (en) * 1986-04-14 1988-10-20 I Melbourne Greenberg SURGICAL INSTRUMENT
US4674501A (en) * 1986-04-14 1987-06-23 Greenberg I Melbourne Surgical instrument
US4919152A (en) * 1987-03-02 1990-04-24 Ralph Ger Method of closing the opening of a hernial sac
US5125553A (en) * 1987-03-02 1992-06-30 Stryker Sales Corporation Surgical suturing instrument and method
US4944093A (en) * 1987-10-26 1990-07-31 Richard Wolf Gmbh Forceps with shearing jaws
US4944443A (en) * 1988-04-22 1990-07-31 Innovative Surgical Devices, Inc. Surgical suturing instrument and method
US5382254A (en) * 1989-07-18 1995-01-17 United States Surgical Corporation Actuating handle for surgical instruments
US5383881A (en) * 1989-07-18 1995-01-24 United States Surgical Corporation Safety device for use with endoscopic instrumentation
US5048538A (en) * 1989-11-27 1991-09-17 Vance Products Incorporated Biopsy instrument
US5201752A (en) * 1990-09-27 1993-04-13 Pod, Inc. Cholecystectomy dissector instrument
US5522830A (en) * 1990-10-05 1996-06-04 United States Surgical Corporation Endoscopic surgical instrument
US5626609A (en) * 1990-10-05 1997-05-06 United States Surgical Corporation Endoscopic surgical instrument
US5509922A (en) * 1990-10-05 1996-04-23 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
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
US5293878A (en) * 1991-04-04 1994-03-15 Symbiosis Corporation Endoscopic surgical instruments having stepped rotatable end effectors
US5613977A (en) * 1992-07-22 1997-03-25 Friatec Ag Keramik-Und-Kunstoffwerke Gripping and/or cutting instrument for endoscopic purposes
US5746740A (en) * 1992-09-23 1998-05-05 United States Surgical Corporation Surgical biopsy forceps apparatus
US5300081A (en) * 1992-10-09 1994-04-05 United States Surgical Corporation Surgical clip applier having clip advancement control
US5382255A (en) * 1993-01-08 1995-01-17 United States Surgical Corporation Apparatus and method for assembly of surgical instruments
US5507772A (en) * 1993-05-25 1996-04-16 Depuy Inc. Cleanable, inspectable, and replaceable surgical instrument
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
US5769841A (en) * 1995-06-13 1998-06-23 Electroscope, Inc. Electrosurgical apparatus for laparoscopic and like procedures
US20040012855A1 (en) * 1996-02-29 2004-01-22 3M Innovative Properties Company Optical film with co-continuous phases
US5833696A (en) * 1996-10-03 1998-11-10 United States Surgical Corporation Apparatus for applying surgical clips
US6569178B1 (en) * 1999-03-09 2003-05-27 Olympus Optical Co., Ltd. Ultrasonic coagulating/cutting apparatus
US20050101991A1 (en) * 2003-11-12 2005-05-12 Applied Medical Resources Corporation Overmolded grasper jaw
US9161770B2 (en) 2003-11-12 2015-10-20 Applied Medical Resources Corporation Overmolded grasper jaw
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