Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS1659112 A
Publication typeGrant
Publication dateFeb 14, 1928
Filing dateMay 12, 1927
Priority dateMay 12, 1927
Publication numberUS 1659112 A, US 1659112A, US-A-1659112, US1659112 A, US1659112A
InventorsDana M Littlejohn
Original AssigneeDana M Littlejohn
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Toggle-squeeze hemostat forceps
US 1659112 A
Previous page
Next page
Description  (OCR text may contain errors)

Feb. 14, 1928. 1,659,112


BY l I ATTORNEY I Patented Feb. 14, 192 i p a uN- 'rao STATES I 1,659,112 PA ENT- Q FIC DANA n mmrmofin, or PANA, ILLINOIS.


Application filed May 12, 1927. Serial No. 19am.

geon when in use, and in which the said clamping movement effecting parts include toggle devices so constructed and arranged that an unusually great pressure or clamping action is attained from a given force application.

lVith the above and other objects in view that will hereinafter appear, the invention further resides in the novel details-of construction, combination and arrangement of parts, all ofwhich will be first fully described, then be particularly pointed out in the appended claims, reference being had to the accompanying drawing, in which A Figure 1 is a perspective view of the forceps in an open or unclamped position.

Figure 2 is a perspective view of the forceps reversely positioned and closed or clamped.

Figure 3 is a cross section taken on the line 33' on Figure 2. Y

In the practical developmentof the invention I provide a fixed shank or main body 1 which is bent atone end at an angle of 90 degrees to form a fixed clamp jaw 2, has the face thereof whi clris presented in the y direction of bend of the jaw 2 dove-tail grooved as at 3, and has its remaining end,

through which the groove 3 passes, provided with pivot ears 4 one disposed at each side of the said groove. i j

A slide shank 5 is slidable in the grooveway 3 and has one end thereof bent at an angle of QO'degrees to form a movable clamp jaw 6. A pair of handle members 7 are provided and'are pivoted one to each ear 4 and equipped at their free ends with finger receiving eyes which lie in the plane of movement of the saidmembers which plane, it will be observed, is horizontal and normal to the plane of movement of the movable jaw 6. It will also be observed by reference to Figure 2 of the drawing, that the handle members 7, when closed, form a longitudinal continuation of the shank or body 1, formingv a very compact device, which, by reasonalso of the manner of positioning the said'handle members and eyes, will lie perfectly fiat and out of the way of the surgeon when in actual use. t r

The shank 5 is extended beyond the grooveway 3 a distance between thehandle members 7, as indicated at 8, and to this extendediend the toggle links 9 are pivoted as at 10, the remaining ends of the said links being pivoted as at 11 to the'handle members 7 closely adj acent the eyes thereof. By reason of the provision and arrangement of 7 the toggle links, a given force applied to the handle membersthrough their eyes is compounded by said links anda much greater pressure is applied through the shank 5 and jaw 6 than could be applied by a like force application to the arms of the common scis-r sor type of forceps. I

Beyond the link pivots 11 and closely adjacent the eyes, the handle members are equipped respectively with a notched sector 12 and a detent lug .13 adapted to coact to' lock the handlemembers to a jaw clamped position. 7 k I The toggle squeeze arrangement in my device permits of a much greater pressure than 'may be'attained in common types of such instruments whenthe'same' force is exerted in v manipulation thereof, and as the handles are opened and closed on an angle of 90 degrees with the jaws and not on the same planewith them, the handles'are therefore permitted to lie flat, which aidsconsiderably in the convenience'of abdominal operations,

because the handles do not stick up in the way, and provide'other advantages that naturally follow in the use of an instrument of this kind.

From the foregoing description, taken in connection with the accompanying drawing,

it is thought that the novel details of construction, the manner of use and'the advantages of my invention, will be readily apparent to those skilled in the art to which it relates. 1

,What I claim is:

1. Forceps of the character stated compris- 1 ing a narrow body having slightly diverging width defining edges a fixed jaw, a movable jaw, handle members, and'toggle links connecting the movable jaw and the handle members, said {handle members collectively forming a longitudinally alighing extension of the bodywhen closed, and said handle members having finger receiving eyes at their ends disposed in a plane normal to the plane of movement of the movable jaw all of said parts being arranged to remain Within the lines defining the thickness of the body at all times.

:2. l leemostat forceps comprising a narrovv' body having slightly diverging Widthdefining edges and bent at one end to form a fixed jaw positioned at right angles to said body and having a clamp face directed to- Ward the other end ofisaid body, said body also having a longitudinal groove therein extending through said other end thereof, a slide shank slidable in and extending at one end beyond the groove and having its outside face flush with the corresponding face of the said bodyand having a clamp jaw bent at, right angles therefrom at its other end to provide a movable clamp jaw in opposition to said clamp vface, apair'of handle members each having a finger receiving eye at one end and each being pivoted at its remaining end to the proximal end of said body at one side of said groove to operate in a plane normal to the plane of movement of the clamp jaw, toggle links pivoted to the extended end of the slide shank and to the handle members adjacent the eyes, and said toggle link-and'handl'e members being so cooperatively arranged as to lie Wholly Within the thickness defining lines of the body at all times, and means to lock the handles at adjusted positions.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3258012 *Jun 20, 1962Jun 28, 1966Risaburo AokiMethod for blood vessel connection
US4572185 *Feb 23, 1984Feb 25, 1986Mark RichNonplanar surgical needle holder and related suturing method
US5133724 *Apr 4, 1991Jul 28, 1992Pilling Co.Abdominal aortic clamp
US5234460 *Jun 24, 1992Aug 10, 1993Stouder Jr Albert ELaparoscopy instrument
US5250056 *May 7, 1992Oct 5, 1993Hasson Harrith MForceps-type surgical instrument
US5290294 *Feb 14, 1992Mar 1, 1994Brian CoxMethod and apparatus for removal of a foreign body cavity
US5308357 *Aug 21, 1992May 3, 1994Microsurge, Inc.Handle mechanism for manual instruments
US5314424 *Apr 6, 1992May 24, 1994United States Surgical CorporationSurgical instrument locking mechanism
US5318040 *Aug 27, 1992Jun 7, 1994Kensey Nash CorporationInstruments and methods for performing medical procedures via small percutaneous incisions or punctures without using a trocar
US5336232 *Jan 22, 1993Aug 9, 1994United States Surgical CorporationApproximating apparatus for surgical jaw structure and method of using the same
US5358506 *Mar 5, 1993Oct 25, 1994United States Surgical CorporationApproximating apparatus for surgical jaw structure
US5383886 *Oct 13, 1992Jan 24, 1995Kensey Nash CorporationMethods and instruments for performing medical procedures percutaneously without a trocar
US5409478 *Mar 29, 1993Apr 25, 1995United States Surgical CorporationHandle for manipulating laparoscopic tool
US5413583 *May 4, 1993May 9, 1995Ethicon, Inc.Force limiting arrangement for needle holder for endoscopic surgery
US5425743 *Oct 19, 1993Jun 20, 1995United States Surgical CorporationSurgical instrument locking mechanism
US5476479 *Jan 11, 1995Dec 19, 1995United States Surgical CorporationHandle for endoscopic surgical instruments and jaw structure
US5483952 *Feb 15, 1994Jan 16, 1996United States Surgical CorporationHandle for surgical instruments
US5489292 *Nov 29, 1994Feb 6, 1996United States Surgical CorporationEndoscopic surgical instrument with grip enhancing means
US5503617 *Jul 19, 1994Apr 2, 1996Jako; Geza J.Retractor and method for direct access endoscopic surgery
US5509922 *Nov 1, 1994Apr 23, 1996United States Surgical CorporationEndoscopic surgical instrument
US5624431 *Apr 5, 1995Apr 29, 1997United States Surgical CorporationHandle for manipulating a laparoscopic tool
US5626609 *Dec 16, 1994May 6, 1997United States Surgical CorporationEndoscopic surgical instrument
US5700261 *Mar 29, 1996Dec 23, 1997Ethicon Endo-Surgery, Inc.Bipolar Scissors
US5735874 *Jun 21, 1996Apr 7, 1998Ethicon Endo-Surgery, Inc.Surgical instrument for grasping and clamping tissue
US5749893 *Feb 5, 1996May 12, 1998United States Surgical CorporationSurgical instrument having an articulated jaw structure and a detachable knife
US5792178 *Jun 11, 1996Aug 11, 1998Ethicon Endo Surgery, Inc.For a surgical instrument
US5922008 *Aug 28, 1997Jul 13, 1999Gimpelson; Richard J.For clamping vascular tissue in body cavities
US6066143 *Nov 10, 1998May 23, 2000Bristol-Myers Squibb CompanyPin puller
US6117158 *Jul 7, 1999Sep 12, 2000Ethicon Endo-Surgery, Inc.Ratchet release mechanism for hand held instruments
US6205699 *Jun 30, 1998Mar 27, 2001Fabio BogniFish hook remover
US6398741 *Nov 15, 1999Jun 4, 2002J. Morita Manufacturing CorporationTissue excision and cutting apparatus and its forceps
US6716232Mar 13, 1998Apr 6, 2004United States Surgical CorporationSurgical instrument having an articulated jaw structure and a detachable knife
US7658312Apr 5, 2004Feb 9, 2010Vidal Claude ASurgical instrument having an articulated jaw structure and a detachable knife
US8062217Jan 28, 2008Nov 22, 2011Theken Spine, LlcSurgical retractor with removable blades and method of use
US8066168Jan 11, 2010Nov 29, 2011Tyco Healthcare Group LpSurgical instrument having an articulated jaw structure and a detachable knife
US8403197Oct 31, 2011Mar 26, 2013Covidien LpSurgical instrument having an articulated jaw structure and a detachable knife
EP1066797A1Jul 6, 2000Jan 10, 2001Ethicon Endo-Surgery, Inc.Ratchet locking mechanism for surgical instruments
WO1994004084A1 *Jun 18, 1993Mar 3, 1994Microsurge IncImproved handle mechanism for manual instruments
U.S. Classification606/205, 606/208
International ClassificationA61B17/28
Cooperative ClassificationA61B2017/2922, A61B17/2804
European ClassificationA61B17/28B