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Publication numberUS1274669 A
Publication typeGrant
Publication dateAug 6, 1918
Filing dateJan 14, 1918
Priority dateJan 14, 1918
Publication numberUS 1274669 A, US 1274669A, US-A-1274669, US1274669 A, US1274669A
InventorsFrank Bohn
Original AssigneeFrank Bohn
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Surgical instrument.
US 1274669 A
Images(1)
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Description  (OCR text may contain errors)

F. BOHN.

SURGICAL INSTRUMENT. APPLICATION FILED JAN. I4.19l8- Patented Aug. 6, 1918.

attoz neg FRANK BOHN, OF BALTIMORE, MARYLAND.

SURGICAL INSTRUMENT.

Specification of Letters Patent.

Patented Aug. 6, 1918.

Application filed January 14, 1918. Serial No. 211,859.

To all whom it may concern.

' Be it known that I, FRANK BOHN, a citizen of the United. States, residing at Baltimore, in the State of Maryland, have invented certain new and useful Improvements in Surgical Instruments, of which the following is. a specification.

y inventlon relates to surgical instruments, and more particularly to such a device adapted for insertion within the nose to cut and remove portionsof bone, cartilage, or. the like, while not necessarily restricted to this use. 7

An important object of the invention is to provide instruments of the above'mentioned character, embodying a cutting element which is removable, thereby allowing of the use of. any number of cutting elements, of different shapes and sizes. 7

A further object of the invention is to provide an instrument of the above mentioned character, so constructed that the cutting element is operated positively and powerfully, to cut and remove the bone, cartilage or the like. v

Other objects and advantages of the invention will be apparent during the course numerals are employed. to designate like of the following description.

In the accompanying drawing, forming a part of this specification, and in which like parts throughout the same,

Figure 1 is a side elevation of an instrument embodying my invention,

Fig. 2 is a central longitudinal sectional view through the same, in elevation,

Fig. 3 is a transverse sectional view taken on line 33 of Fig. 2, Fig. 4 is a similar view taken on line H of Fig. 2,

Fig. 5 is a similar view taken on l1ne 5-5 of Fig; 2, and

Fig. 6 is a similar view taken on line 66 of Fig. 2. p In the drawings, wherein for the purpose A of illustration is shown a preferred embodiment of my invention, the numeral 10 desigparts being shown nates the tubular body portion of the instrument, which is preferably circular in cross-section throughout the greater portlon of its length, as shown. At its forward end,

this tubular body portion is preferably flattened, providing an elliptical forward end portion 11, for a purpose to'be described.

Formed upon the rearend of the tubular body portion are pairs of apertured ears or knuckles 12, preferably integral therewith. These pairs of knuckles are disposed in the plane of the elliptical portion 11.

Extending rearwardly from the knuckles 12 are extensions 13, adapted to serve as stops, for handles or hand grips, to; be described.

The numeral 14 designates a pair of handles or hand grips, preferably longitudinally curved, and provided at their forward ends with enlargements 15, having recesses 16 formed therein, providing spaced ears or knuckles 17. The enlargements 15 are provided with reduced forwardly projecting extensions 18, extending between the cars 12, and pivoted thereto by pins or -pintles 19, as shown.

The numeral 20 designates an operating element, provided with a longitudinally extending screw-threaded opening 21. The operating element is provided at its forward end with pairs ofspaced ears or knuckles 22, receiving links 23, pivoted thereto, as shown at 24. The forward end of these links project into the recesses 16, and are pivoted to the ears 17, as shown at 25. The links 23 and associated elements constitute a toggle joint to move the operating element longitudinally, as is obvious.

Mounted to reciprocate within the tubular body portion 10 is a rod 26, the rear end of which is screw-threaded, as shown at 27, for insertion within the screw-threaded opening 21. The forward end of the rod is suitably tempered to render it resilient, and this forward end is provided with a longitudinal opening formed therein, providing spaced resilient arms 28. These arms carry oppositely arranged jaws 29, having rear cam surfaces 30. The cam surfaces 30, as more clearly'shown in Fig. 4, operate within the elliptical portion 11, and when the rod 26 is moved rearwardly, such cam surfaces will function to move the jaws 29 toward each other. The cam surfaces 30, operating within'the elliptical portion 11, prevent improper rotation of the rod 26.

The rod 26 may be readily removed by turning the same in the proper direction, whereby its screw-threaded end 27 is re moved from the opening 21.

While I have shown the jaws 29 curved in cross-section, as illustrated in Fig. 6, for providing longitudinal cutting edges, it is to be understood that. the invention is not r!) In threaded opening restricted to this particular type of cutter, asl contemplate employing cutters of different shapes and sizes, an for this reason the rod 26 is made removable, as above indicated.

A particular advantage of my construction is that when the rod 26. is moved rearwardly through the tubular body portion 10, in inserting a new cutting element upon contacting with the operating element 20, the rod at once shifts the operating element 20 to the central position, in alinement with the rod 26, whereby the screw-threaded end of the rod will properly enter the screw- In the operation of the instrument, the spaced resilient arms 28 urge the cam surfaces outwardly, which in turn cause the rod 26 to move forwardly, thereby retaining the several parts in the expanded position, as clearly shown in Fig. 1. The forward end of the tubular body portion 10 may now be inserted within the nose, and the jaws 29 brought into contact withthe bone, cartilage or the like, to be out. When the handles 14: are pressed inwardly, as indicated in Fig. 2, the rod 26 is moved rearwardly, and cam surfaces 30 coact with the extension 11, and force jaws 29 toward each other. These jaws have cutting edges extending around their longitudinal edges and forward ends, and the bone or the like is thereby cut.

it is to be understood that. the form of my invention herewith shown and described is nearest to be taken as a preferred example of the same, and that various changes in the shape, size, and arrangement of parts may be resorted to without departing from the spirit of the invention or the scope of the subjoined claim.

Having thus described my invention, I claim:

An instrument of the character described, comprising a tubular body portion provided at its forward end with a portion which is approximately elliptical in cross-section, a rod mounted. to reciprocate within the tubular body portion and adapted to be removed therefrom and having its rear end screw- -threaded, resilient arms carried by the forward end of the rod and provided with oppositely arranged jaws having cutting edges, said jaws being provided upon their outer sides with cam faces to contact with the forward portion of the tubular body portion which is approximately elliptical in crosssection, handles pivoted to the rear end of the tubular body portion, an operating element having a screw-threaded openin to receive the rear screw-threaded end of 51 and links pivotally connecting the operating element and handles.

in testimony whereof I aflix my signature in presence of two witnesses.

FRANK BOHN.

Witnesses:

C. L. PARKER, B. P. FIsHBU NE.

erod,

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3404677 *Jul 8, 1965Oct 8, 1968Henry A. SpringerBiopsy and tissue removing device
US4881550 *Feb 16, 1988Nov 21, 1989Lutz KotheMedical instrument
US5222973 *Mar 9, 1992Jun 29, 1993Sharpe Endosurgical CorporationEndoscopic grasping tool surgical instrument
US5234460 *Jun 24, 1992Aug 10, 1993Stouder Jr Albert ELaparoscopy instrument
US5275613 *Mar 13, 1992Jan 4, 1994Habley Medical Technology CorporationEndoscopic tissue manipulator
US5275614 *Jun 12, 1992Jan 4, 1994Habley Medical Technology CorporationAxially extendable endoscopic surgical instrument
US5281235 *Feb 21, 1992Jan 25, 1994Habley Medical Technology CorporationNeedle manipulator
US5282806 *Aug 21, 1992Feb 1, 1994Habley Medical Technology CorporationEndoscopic surgical instrument having a removable, rotatable, end effector assembly
US5292330 *Jan 29, 1992Mar 8, 1994Linvatec CorporationRetractable surgical instrument with curved operative element
US5304183 *Mar 23, 1992Apr 19, 1994Laparomed CorporationTissue manipulation system
US5342389 *Apr 28, 1992Aug 30, 1994Habley Medical Technology CorporationTissue manipulator
US5368606 *Jul 2, 1992Nov 29, 1994Marlow Surgical Technologies, Inc.Endoscopic instrument system
US5415666 *Mar 4, 1993May 16, 1995Advanced Surgical, Inc.Apparatus in kit form for tissue manipulation
US5562677 *Dec 19, 1994Oct 8, 1996Ethicon, Inc.Obturator for justing a flexible trocar tube
US5571137 *Aug 17, 1994Nov 5, 1996Marlow Surgical Technologies, Inc.Endoscopic instrument system and method
US5603723 *Jan 11, 1995Feb 18, 1997United States Surgical CorporationSurgical instrument configured to be disassembled for cleaning
US5749893 *Feb 5, 1996May 12, 1998United States Surgical CorporationSurgical instrument having an articulated jaw structure and a detachable knife
US5782749 *Jan 2, 1996Jul 21, 1998Riza; Erol D.Laparoscopic surgical instrument with adjustable grip
US5843122 *Sep 30, 1997Dec 1, 1998Riza; Erol D.Surgical tool with pair of pivotable jaws
US5868784 *Sep 30, 1997Feb 9, 1999Riza; Erol D.Surgical instrument and ratchet controlled handle therefore
US5928256 *Sep 30, 1997Jul 27, 1999Riza; Erol D.Motor controlled surgical instrument
US5935126 *Sep 30, 1997Aug 10, 1999Riza; Erol D.Surgical instrument with jaws having electrical contacts
US6673078 *Jul 24, 2002Jan 6, 2004Robert H. MuncieSurgical wire and pin extractor
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
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
US8403837Jun 1, 2010Mar 26, 2013Covidien LpDeployable jaws retraction device
US8585735 *May 11, 2011Nov 19, 2013Ravi NallakrishnanHandle for surgical forceps and the like
US20120116435 *May 11, 2011May 10, 2012Ravi NallakrishnanHandle for Surgical Forceps and the Like
Classifications
U.S. Classification606/206, 30/175
Cooperative ClassificationA61B17/29