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Publication numberUS2749909 A
Publication typeGrant
Publication dateJun 12, 1956
Filing dateSep 21, 1954
Publication numberUS 2749909 A, US 2749909A, US-A-2749909, US2749909 A, US2749909A
InventorsJohn C. Ullery
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Biopsy knife
US 2749909 A
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Description  (OCR text may contain errors)

June 12, 1956 J. c. ULLERY ET AL 2,749,909

BIOPSY KNIFE Filed Sept. 2l, 1954 Mahware); e QQ United States Patent() BIOPSY KNIFE John C. Ullery, Upper'Darby, and Arthur R. Allard, Drexel Hill, Pa.

Application :September .21, 1954,:Seral No. `657,338

1 Claim. (Cl. 12S-2) The present invention relates `to a biopsy knife, a surgical instrument specifically intended to perform .surgery lupon the female uterine cervix.

A purpose of the invention is to epermit the physician to obtain biopsy specimens of the uterine cervix which are in substantially the same condition as in-vivo.

A further purpose is to simplify and shorten the surgical technique required for performing surgery including biopsy on the uterine cervix.

A further purpose is to more closely regulate the depth of penetration in obtaining a biopsy specimen of the uterine cervix and to permit the operator more readily to adapt his technique to the particular conditions encountered.

A further purpose is to provide a spiral knife protruding from the forward cutting edge of a rotating conical Wall, and to slice olf a biopsy specimen by the cutting edge and carry the slice bodily into a container on the interior of the device, subsequently opening the container to remove the specimen.

A further purpose is to provide a nose which protrudes beyond the projected surface of the conical wall for assistance in guiding and regulating depth of cut.

Further purposes appear in the specification and in the claim.

In the drawings we have chosen one only of the numerous embodiments in which our invention may appear, selecting the form shown from the standpoints of convenience in illustration, satisfactory operation and clear demonstration of the principles involved.

Figure l is a side elevation of a biopsy knife according to the invention, showing a fragment of the mounting chuck.

Figure 2 is a front elevation of the device of Figure l.

Figure 3 is an axial section on the line 3--3 of Figure 1.

Describing an illustration but not in limitation and referring to the drawings:

It is frequently necessary in gynecology to obtain biopsy specimens and to cure certain lesions of the uterine cervix.

The technique usually used in biopsies at this location is to employ the scalpel and take quadrant specimens of the cervix and also spot biopsies of suspicious areas which are seen grossly. Where pathologic erosions, eversions, minimal lacerations, polyps or endocervicitis is encountered, the cervix is then treated by electrosurgery using a conizing loop.

Thus by this procedure it is necessary first to perform the biopsy with the scalpel and then accomplish the treatment with the electrosurgical loop.

A serious difiiculty in this procedure is that the tissue when removed by the electrosurgical loop is in poor condition for microscopic examination. It is often charred and carbonized, with edema and destruction of the cellular structure of the specimen.

In accordance with the present invention, improved biopsy specimens are obtained, and it is possible to re- ICC move the specimen and treat any one of the above lesions at the same time.

ln accordance with .the invention, a continuous circular biopsy is made of the entire outer surface ofthe ,cervix as well as the endocervix by a conical spiral ycutting knife and the location of the knife vtends .to force the biopsy specimen into the interior cavity yof the device where -it is preserved. Any pathologic areas are cut out at the same time that `the specimen is removed.

After the operation is completed, the parts of the Adevice are separated, and the specimen is removed in as good condition vas it was in-vivo.` The pathologist therefore receives a more complete and representative `specimen and can make a more accurate final diagnosis.

The device of the invention causes no more `bleeding than the ordinary scalpel or the Aelectrosurgical loop, and the bleeding is readily controlled by electrocoagulation.

It will of course be evident that the-device can be `rnade in various sizes and with various .cone angles to lit the Vrequirement of various patients.

Considering now the drawings in detail, a shank 20 similar to the shank of a twist drill or the like is suitably engaged in the chuck 21 of a drill, conveniently a hand drill of the common type in which a crank turning on an axis at right angles to the drill axis turns the drill through bevelled gearing.

At the forward end of the shank and coaxial therewith there is a body portion 22 which is hollow at the interior at 23 and adapted to receive the specimen. The body is slightly depressed around the circular outside forward portion at 24 and telescopes with a cylindrical portion 25 of a forward knife element 26. The knife element is conical at 27 at the forward end coaxial with the shank and has a hollow interior 28.

The cone angle will depend upon the design of the particular device, and several different cone angles can be provided if desired. It will however be convenient to have a cone angle of the order of 20 degrees to the axis as shown.

At the forward end the cone does not go completely to a peak, but mounts a guiding nose 30 which is conveniently secured by a bolt or other suitable means at 31 to the nose. The nose is cylindrical and protrudes outwardly beyond the projected surface of the conical wall, and desirably has a dome-shaped forward end 32. This permits slight tilting of the implement to adjust the depth of cut if desired, using the nose as a point of rest or guide.

Between the nose and the rearward end of the conical surface a spiral slot 33 extends, and the forwardly directed edge 34 of the spiral slot is deformed outwardly at 35 to a distance corresponding with the desired thickness of the biopsy, and is sharpened to a knife edge, desirably by shaping (as by filing and honing) the inner edge 36 as shown. The knife edge will suitably be hardened after shaping.

The knife is secured removably to the body of the biopsy instrument by bayonet slot 37 in the telescoping portion of the knife and cooperating pin 38, the bayonet slot being so directed that it will not release when the tool is turning in the normal direction of operation (clockwise) In the operation, the sterile instrument is mounted on a drill, and then employed to obtain a biopsy specimen or to treat one of the pathological conditions above referred to, or both, removing a slice through the slot into the interior at 28 and 23. The device is then removed and taken apart to extract the specimen which is subjected to pathological examination.

For resharpening it is merely necessary to run a hone back and forth in a general longitudinal direction against the cutting edge 36, the hone extending through the slot.

It will of course be understood that for different thicknesses of cut the amount of peneration of the knife can be varied.

It will also be understood that the spiral angle can be varied, although it is generally considered by us to be sucient tohavc the spiral make one turn in travelling from the radial interior to the exterior edge of the conical surface.

The device of the invention has been used experimeni and scope of our claim.

Having thus described our invention, what we claim as new and desire to secure by Letters Patent is:

A biopsy knife comprising a shank, a body on the 4 shank, a blade removably secured to the forward end of the body, a quick detachable connection between the body and the blade, the blade being hollow and having a conical forward surface coaxial with the shank, and a guiding nose on the forward end of the conical surface coaxial therewith and protruding forward of the conical surface, there being a slot extending spirally of the conical surface from a position adjoining the nose to a position adjoining the outer circumference, the conical surface at the rearward edge of the slot having a rim which is deformed outwardly from the slope of the conical surface, and the rim at the forward edge having a cutting edge located outward of the line of slope of the conical surface.

References Cited in the file of this patent UNITED STATES PATENTS 86,674 Hunt Feb. 9, 1869 1,586,559 Laursen June 1, 1926 2,402,353 Trautmann June 18, 1946 2,514,665 Myller July 11, 1950 2,710,549 Cogsdill June 14, 1955

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US86674 *Feb 9, 1869 Improvement in counter-sink
US1586559 *Aug 1, 1925Jun 1, 1926Laursen Laust KCountersink
US2402353 *May 25, 1943Jun 18, 1946Zephyr Mfg CoStop device
US2514665 *Jan 11, 1949Jul 11, 1950Ernest MyllerMedical instrument
US2710549 *Jan 31, 1952Jun 14, 1955Cogsdill Twist Drill Company IMicro-limit countersink driver
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2827039 *Jul 9, 1956Mar 18, 1958Seiger Harry WrightSurgical instrument
US3394699 *Jul 22, 1965Jul 30, 1968Panto Entpr IncInstrument for obtaining a biopsy specimen
US3452741 *May 27, 1966Jul 1, 1969Schaffer Richard CConetome
US3610304 *Nov 24, 1969Oct 5, 1971Popeil Samuel JFood-cutting machine
US4032251 *May 5, 1975Jun 28, 1977The Weldon Tool CompanyCountersinking and deburring tool
US4895166 *Nov 23, 1987Jan 23, 1990Interventional Technologies, Inc.For excising obstructive tissue
US4942788 *Jul 26, 1989Jul 24, 1990Interventional Technologies, Inc.Method of manufacturing a cutter for atherectomy device
US4950277 *Jan 23, 1989Aug 21, 1990Interventional Technologies, Inc.Atherectomy cutting device with eccentric wire and method
US4966604 *Jan 23, 1989Oct 30, 1990Interventional Technologies Inc.Expandable atherectomy cutter with flexibly bowed blades
US4986807 *Jan 23, 1989Jan 22, 1991Interventional Technologies, Inc.Atherectomy cutter with radially projecting blade
US5000750 *Dec 14, 1988Mar 19, 1991Device Developments, Inc.Device for the treatment of fecal impaction
US5019088 *Nov 7, 1989May 28, 1991Interventional Technologies Inc.Ovoid atherectomy cutter
US5074311 *Oct 9, 1990Dec 24, 1991Hasson Harrith MBiopsy device
US5192291 *Jan 13, 1992Mar 9, 1993Interventional Technologies, Inc.Rotationally expandable atherectomy cutter assembly
US5224945 *Jan 13, 1992Jul 6, 1993Interventional Technologies, Inc.Compressible/expandable atherectomy cutter
US5224949 *Jan 13, 1992Jul 6, 1993Interventional Technologies, Inc.Camming device
US5251641 *Jul 29, 1992Oct 12, 1993Hgg Laser Fare, Inc.Biopsy needle
US5471992 *Jan 30, 1995Dec 5, 1995Boston Scientific CorporationMulti-motion cutter multiple biopsy sampling device
US5556405 *Oct 13, 1995Sep 17, 1996Interventional Technologies Inc.Universal dilator with reciprocal incisor
US5573008 *Oct 29, 1993Nov 12, 1996Boston Scientific CorporationMultiple biopsy sampling coring device
US5601585 *Feb 8, 1994Feb 11, 1997Boston Scientific CorporationMulti-motion side-cutting biopsy sampling device
US5649941 *Dec 20, 1995Jul 22, 1997Interventional Technologies Inc.For clearing a stenosis in a vessel without compromising fluid flow
US5779648 *Mar 12, 1997Jul 14, 1998Boston Scientific CorporationMulti-motion cutter multiple biopsy sampling device
US5817032 *May 14, 1996Oct 6, 1998Biopath Automation Llc.Means and method for harvesting and handling tissue samples for biopsy analysis
US5823971 *Nov 12, 1996Oct 20, 1998Boston Scientific CorporationMultiple biopsy sampling coring device
US5852875 *May 13, 1997Dec 29, 1998Dolah; Olga H.Battery powered coring device
US5871453 *Aug 29, 1996Feb 16, 1999Boston Scientific CorporationMoveable sample tube multiple biopsy sampling device
US5961534 *Feb 11, 1997Oct 5, 1999Boston Scientific CorporationMulti-motion side cutting biopsy sampling device
US6053877 *Nov 17, 1998Apr 25, 2000Boston Scientific CorporationMovable sample tube multiple biopsy sampling device
US6142957 *Jan 27, 1997Nov 7, 2000Boston Scientific CorporationMultiple biopsy sampling device
US6295681Dec 21, 1999Oct 2, 2001Olga H. DolahRotary brush cleaning device
US7124566Mar 2, 2005Oct 24, 2006Outils WolfCutting device, particularly a lawn mower
US7156814Oct 5, 1998Jan 2, 2007Biopath Automation, L.L.C.Apparatus and method for harvesting and handling tissue samples for biopsy analysis
US7179424Oct 12, 2004Feb 20, 2007Biopath Automation, L.L.C.Cassette for handling and holding tissue samples during processing, embedding and microtome procedures, and methods therefor
US7686799Jul 13, 2001Mar 30, 2010Abbott Cardiovascular Systems Inc.Deployment system for myocardial cellular material
US7722810Dec 13, 2004May 25, 2010Biopath Automation, LlcApparatus and methods for automated handling and embedding of tissue samples
US7776274Mar 4, 2005Aug 17, 2010Biopath Automation, L.L.C.V-shaped side walls to the microtome blade, after the embedding process is complete, which assists with the cutting action; prevents the hardened paraffin from breaking away from the cassette side wall material while making slices in the microtome
US8034292Mar 14, 2011Oct 11, 2011Biopath Automation LlcApparatus and methods for automated handling and embedding of tissue samples
US8308708Feb 5, 2010Nov 13, 2012Abbott Cardiovascular Systems Inc.Deployment system for myocardial cellular material
US8329120Jan 22, 2010Dec 11, 2012Biopath Automation, L.L.C.Microtome sectionable biopsy support for orienting tissue samples
US8383067Dec 11, 2007Feb 26, 2013Biopath Automation, L.L.C.Microtome apparatus for preparation of stained tissues
US8734735Mar 14, 2011May 27, 2014Biopath Automation, L.L.C.Tissue cassette for automated handling and embedding of tissue samples
USRE42959Sep 17, 2002Nov 22, 2011Abbott Cardiovascular Systems Inc.Apparatus and methods for stimulating revascularization and/or tissue growth
USRE43300Apr 18, 2002Apr 3, 2012Abbott Cardiovascular Systems Inc.Apparatus having stabilization members for percutaneously performing surgery and methods of use
EP1570719A1 *Mar 5, 2004Sep 7, 2005Outils WolfCutting apparatus, especially lawnmower
Classifications
U.S. Classification600/564, 30/278, 30/113.1, 408/204, 408/207
International ClassificationA61B10/02, A61B10/00
Cooperative ClassificationA61B10/0291
European ClassificationA61B10/02U