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Publication numberUS3175554 A
Publication typeGrant
Publication dateMar 30, 1965
Filing dateMar 26, 1963
Priority dateMar 26, 1963
Publication numberUS 3175554 A, US 3175554A, US-A-3175554, US3175554 A, US3175554A
InventorsStewart Robert A
Original AssigneeBecton Dickinson Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Split biopsy needle
US 3175554 A
Abstract  available in
Images(3)
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Claims  available in
Description  (OCR text may contain errors)

March 30, 1965 R. A. STEWART 3,175,554

SPLIQT BIOPSY NEEDLE IIIIIIIIIIIIVII INVENTOR. L Zaaaer A .vz/vner BY 32/ 3Z March 30, 1965 R. A. STEWART 3,175,554

7 SPLIT BIOPSY NEEDLE Filed March 26, 1963 3 Sheets-Sheet 2 INVENTOR.

March 30, 1965 R. A. STEWART SPLIT BIOPSY NEEDLE I -M w M M fi n F F/a. 1E Q VENTOR- 05587 United States Patent M 3,175,554 SPLIT BIOPSY NEEDLE Robert A. Stewart, Westwood, N.J., assignor to Becton Dickinson and Company, East Rutherford, NJ., a corporation of New Jersey Filed Mar. 26, 1963, Ser. No. 268,152 3 Claims. (Cl. 128-2) This invention relates to an improved split biopsy needle.

It is an object of this invention to provide an improved split biopsy needle which is so designed and constructed that the needle will spread when inserted in soft tissue and so that the needle will contract to cut and trap a biopsy when the needle is withdrawn from the tissue.

A further object is the provision of an improved biopsy needle of the above type which is of relatively simple and inexpensive construction and which is so designed as to insure positive cutting and trapping of the biopsy as the needle is withdrawn from the tissue.

My invention contemplates the provision of an improved split biopsy needle which is adapted to be inserted through an outer needle into the soft tissue where the biopsy is to be taken. The outer end of the biopsy needle is bifurcated and is provided with a pair of tabs projecting towards each other from diametrically opposite sides of the split needle at an angle away from the bifurcated end. As the needle is inserted into soft tissue, the bifurcated end spreads; as the needle is withdrawn the end is contracted bringing the tabs into engagement with each other so as to cut and trap a biopsy.

In the accompanying drawings:

FIG. 1 shows a complete biopsy set including a split biopsy needle embodying my invention;

FIG. 2 is an enlarged longitudinal sectional view of the upper portion of the outer needle having the fitted stylet inserted therein;

FIG. 3 is a detailed sectional view in the direction of the arrows on the line 3-3 of FIG. 2;

FIG. 4 is a detailed longitudinal sectional view of the upper portion of the split needle having a stylet in.- serted therein;

FIG. 5 is an enlarged detailed view of the lower portion of the outer needle having the fitted stylet inserted therein;

FIG. 6 is a detailed longitudinal View partially in section at right angles to FIG. 5 in the direction of the arrows on the line 6-6 of FIG. 5;

FIG. 7 is a longitudinal detailed view of the lower portion of the split needle having a stylet inserted therein;

FIG. 8 is a detailed longitudinal view partially in section at right angles to FIG. 7 in the direction of the arrows on the line 8-8 of FIG. 7;

FIG. 9 is a detailed longitudinal view partially in section of the lower portion of the outer needle inserted in soft tissue with the fitted stylet being withdrawn;

FIG. 10 is a similar detailed sectional view of the lower portion of the outer needle inserted in soft tissue with the split needle being inserted therethrough;

FIG. 11 is a view similar to FIG. 10 with the split needle shown as inserted into the soft tissue beyond the outer needle and with the bifurcated end of the split needle being spread apart; and

FIG. 12 is a similar detailed sectional view showing the split needle being withdrawn from the tissue into the 3,175,554 Patented Mar. 30, 1965 outer needle and with the biopsy cut and retained in the split needle.

FIG. 1 shows a biopsy needle set including a split biopsy needle embodying my invention thus the numeral 15 represents the outer needle which is inserted into the tissue to the required depth and through which the split needle is inserted in order to take the biopsy. The unmeral 16 illustrates a fitted stylet to be assembled inside the outer needle as it is inserted into the tissue. The numeral 17 shows my improved split needle and the numeral 18 shows a stylet for insertion inside the split needle.

My invention is concerned with the construction of the split needle 17 and the split needle may be used with an outer needle and stylets of known design.

The outer needle 15 comprises a cannula 2% pointed at its lower end as shown at 21. A suitable hub 22 is secured to the upper end of the outer needle as by solder. The hub 22 is preferably provided with a fitting such as the Luer fitting 23 whereby the needle may be supported in a suitable needle mounting.

The outer needle 15 is slightly larger in diameter than the split needle 17 so that the split needle 17 may be inserted therethrough, also it is slightly shorter in length so that the split needle may be projected beyond the pointed end of the outer needle to penetrate the tissue where it is desired to obtain the biopsy.

Fitted stylet 16 is of a diameter to snugly fit in outer needle 20. It is formed of solid stock and is provided at its lower end with a point 24 conforming with the point 21 of the needle. The upper end of the fitted stylet is provided with a handle portion 25 having a hub 26 which will fit within the fitting 23 at the upper end of the outer needle.

When the fitted stylet is inserted in the outer needle it fits snugly therein With the hub 26 engaged in the fitting 23 and with the pointed end 24 closing the pointed end 21 of the needle. Suitable means are provided in order to maintain the points 24 and 21 in proper registry and alignment when the parts are thus assembled together. For this purpose I provide a small notch 27 in the flange of the fitting 23. I also provide a small projecting lug 28 on the side of the hub 26 beneath the handle portion 25. The lug may be formed by blanking out a small portion of the flange of the lower portion of handle 25 and displacing it downwardly as shown. The lug 28 and the notch 27 are formed in proper alignment with each other so that when the fitted stylet and the outer needle are assembled together in the manner shown in FIGS. 2 and 3 the lug may be inserted in notch 27 with the result that the point of the stylet will be in proper alignment with the point of the needle as shown in FIGS. 5 and 6.

The split biopsy needle 17 consists of an elongated cylindrical tube slightly smaller in diameter than the outer needle 15 so that it may be inserted therethrough. It is also of greater length so that the lower end thereof may be projected beyond the lower end of the outer needle to penetrate the tissue from which the biopsy is to be taken.

The split needle is formed of two semi-cylindrical sections 3l extending at least for a portion of the length of the needle to the lower end thereof. In the illustrated embodiment the two semi-cylindrical sections extend for the entire length of the needle and they form two comple ment'ary halves. Each section has a pair of edges which FIG. 10.

normally engage each other for the entire length of the needle to a short distance from the lower end thereof. At the lower end of each semi-cylindrical section the two edges are disposed at an angle as shown at 31. In other words the two edges of each section converge towards each other and diverge away from the edges of the other section as shown most clearly in FIGS. 1 and 8 forming a bifurcated end portion of the split needle terminating in points 32 at the center of the peripheral edge of each section;

The upper end of the split needle is provided with a suitable handle portion 33 having depending hub sections 34; and 35 which engage within the fitting 23 and hub 22 of the outer needle when the split biopsy needle is assembled therewith.

When the split biopsy needle is projected beyond the outer needle into soft tissue the bifurcated ends of the split needle particularly the angularly disposed edges 31 cause the two ends of the split needle to spread apart as shown in FIG. 11. To help in this action and also in order to cut off and retain the biopsy within the split needle I provide each of these sections with an angularly disposed tab 38. The tabs are spaced a short distance from the lower bifurcated end of the needle. They are formed by being blanked out of the side wall of each needle section and they are then deformed inwardly and upwardly at an angle extending away from the pointed end of the needle and towards each other.

When the end of the needle is contracted with the side edges of the two sections in engagement with each other, the end edges of the tabs are similarly in engagement with each other.

Thus it will be seen that when the end of the split needle is projected beyond the outer needle into soft tissue the angularly disposed side edges 31 of the needle sections and the angularly disposed tabs 38 perform a -camming action causing the two ends of the needle to diverge or spread as shown in FIG. 11. Thereafter when the split needle is retracted back into the outer needle as shown in FIG. 12 the constricting action of the outer needle together with the camming action of the upper faces of the tabs 38 cause the two ends of the split needle to contract into engagement with each other. The tabs 33 will then engage each other and cut ofi the .tissue and retain the biopsy within the split needle.

A stylet 18 may also be provided for the split needle. The stylet is in the form of a solid rod of a diameter -to fit within the split needle and of a length to extend .to a short distance above the tabs 38. The stylet is provided with a suitable handle 4t) at its upper endhaving a small depending hub 4-1.

It will be understood that the handle 33 and depending hub portion have abore or opening extending therethrough communicating with the interior of the split needle. The stylet 18 may be assembled therewith by the tissue by means of a trocar or may be made directly by the outer needle having the fitted stylet therein. When the end of the outer needle has been inserted to the point where it is desired to obtain the biopsy the fitted stylet is then removed from the outer needle, as shown in FIG. 9.

Thereafter, the split needle either with or without stylet l8 assembled therewith is inserted through the outer needle until the bifurcated lower end of the split needle is adjacent the point of the outer needle as shown in If the ,stylet' has been assembled with the split needle it is then removed. Thereafter the split needle is further inserted through the outer needle to cause the bifurcated lower end to penetrate into the flesh or tissue from which it is desired to obtain the biopsy as shown in FIG. 11. The camming action resulting from the angularly disposed edges 31 and from the tabs 38 causes the lower end of the split needle to spread apart, also as shown in FIG. 11, so that tissue is disposed between the split endof the needle.

Thereafter, the split biopsy needle is withdrawn back into the outer needle in the manner shown in FIG. 12. The compressive force exerted by the outer needle on the split biopsy needle together with the camming action of the upper surfaces of the tabs 38 cause the lower end of the split needle to contract into engagement with each other. Simultaneously, the upper edges of the tabs 38 shift into engagement with each other so as to sever or cut the tissue and trap the biopsy within the split needle. The split needle can then be withdrawn and the biopsy subjected to examination in the usual manner.

It will thus be seen that I have provided an improved split biopsy needle of relatively simple and inexpensive construction and which when inserted through the outer needle into the tissue will spread so as to envelop a portion of the tissue. Upon withdrawal the ends of the needle will be drawn together so as to sever the tissue .and trap and retain a biopsy within the split needle.

It should be understood of course that modifications may be made in the illustrated and described embodiment ,of my invention without departing from the invention as .set forth in the accompanying claims.

I claim:

- V 1. A split biopsy needle comprising an elongated tubular to form a bifurcated end provided with two points respectively on the outer peripheries of said sections and with each of said sections being formed with tabs adjacent the points with the opposite faces of both tabs projecting at an angle away from the points into engagement with each other, said angularly disposed tabs having their upper edges formed at a relatively sharp acute angle to provide means for cutting the biopsy as said split biopsy needle is withdrawn, said angularly disposed portions of the edges of the sections and said tabs serving as cams to spread said sections as the needle is inserted and said tabs serving to bring said sections into engagement and to cut and hold the biopsy as the needle is withdrawn.

2. A split biopsy needle for insertion through an outer hollow needle into soft tissue for the purpose of taking a biopsy specimen which comprises: an elongated tubular needle of smaller diameter than said outerneedle and of greater length so that it can be projected through the outer needle to project beyond the end thereof, said biopsy needle having a handle portion at one end and being split longitudinally into two complementary semicylindrical sections at least for a portion of its length and extending to its opposite end, with said section being each formed with a pair of longitudinal edges which engage the edges of the other section except at the opposite end, and with said edges on each section being disposed at an angle and converging towards each other and diverging from the edges of the other section adjacent said opposite end to form a bifurcatedend provided with two points respectively on the outer peripheries of said sections and with each of said sections being formed with a tab adjacent the point with the opposite faces of the tab and projecting at an angle away from the point into engagement with the tab on the other section, said angularly disnosed tabs having their upper edges formed at a relatively sharp acute angle to provide means for cutting the biopsy as said split biopsy needle is withdrawn from said hollow tube, said singularly disposed portions of the edges of the sections and said tabs serving as cams to spread said sections as the needle is inserted in tissue beyond the end of the outer needle and said tabs and outer needle serving to bring said sections and tabs into engagement with each other and to cut and hold the biopsy as the needle is withdrawn from the tissue into the outer needle.

3. A split bioosy needle as set forth in claim 2 in which said tabs are formed from the material of the side wall of the sections.

References Cited by the Examiner UNITED STATES PATENTS 2,219,605 10/40 Turkel "128-2 3,001,522 9/61 Silverman "128-2 LOUIS R. PRINCE, Primary Examiner.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2219605 *Jun 6, 1938Oct 29, 1940Henry TurkelDevice for performing a biopsy
US3001522 *Dec 26, 1957Sep 26, 1961Irving SilvermanBiopsy device
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3404677 *Jul 8, 1965Oct 8, 1968Henry A. SpringerBiopsy and tissue removing device
US3470867 *Nov 23, 1964Oct 7, 1969Goldsmith SidneyBiopsy needle
US3477423 *Jan 9, 1967Nov 11, 1969Baxter Laboratories IncBiopsy instrument
US3585986 *Aug 21, 1969Jun 22, 1971Becton Dickinson CoStylet
US3598108 *Feb 28, 1969Aug 10, 1971Windschitl Harold EBiopsy technique and biopsy device
US3628524 *Feb 28, 1969Dec 21, 1971Jamshidi KhosrowBiopsy needle
US3683892 *Jul 13, 1970Aug 15, 1972Battelle Development CorpDevice for the extraction of core samples
US3709211 *Jul 2, 1970Jan 9, 1973Hawkins FDiagnostic myelography needle
US3929123 *Jan 9, 1974Dec 30, 1975Jamshidi KhosrowMuscle biopsy needle
US4099518 *May 10, 1976Jul 11, 1978Baylis Shelby MBiopsy apparatus
US4200111 *Sep 21, 1978Apr 29, 1980Harris Arthur MSpecimen removal instrument
US4258722 *Dec 15, 1978Mar 31, 1981Ferris Manufacturing Corp.Disposable biopsy needle, particularly for bone marrow samplings
US4262676 *Aug 24, 1979Apr 21, 1981Khosrow JamshidiBiopsy needle having integral stylet locking device
US4266555 *Nov 9, 1979May 12, 1981Khosrow JamshidiBiopsy needle with stylet and cannula orientation
US4332333 *Jul 21, 1980Jun 1, 1982American Hospital Supply CorporationPuncture spike handle
US4356828 *Mar 3, 1980Nov 2, 1982Khosrow JamshidiBone marrow aspiration needle
US4362160 *Jul 17, 1980Dec 7, 1982Richard Wolf GmbhEndoscopes
US4403617 *Sep 8, 1981Sep 13, 1983Waters Instruments, Inc.Biopsy needle
US4692141 *Jan 29, 1986Sep 8, 1987Mahurkar Sakharam DDouble lumen catheter
US4770652 *Jul 18, 1986Sep 13, 1988Mahurkar Sakharam DMethod and apparatus for using dual-lumen catheters for extracorporeal treatment
US4785826 *Mar 2, 1987Nov 22, 1988Ward John LBiopsy instrument
US4799494 *Oct 22, 1986Jan 24, 1989Wang Ko PPercutaneous aspiration lung biopsy needle assembly
US4808155 *Sep 16, 1987Feb 28, 1989Mahurkar Sakharam DSimple double lumen catheter
US4958625 *Jul 18, 1989Sep 25, 1990Boston Scientific CorporationBiopsy needle instrument
US5197951 *Feb 27, 1986Mar 30, 1993Mahurkar Sakharam DSimple double lumen catheter
US5221255 *Oct 16, 1991Jun 22, 1993Mahurkar Sakharam DReinforced multiple lumen catheter
US5267572 *Sep 17, 1992Dec 7, 1993Bucalo Brian DBiopsy instrument with tissue specimen retaining and retrieval device
US5279306 *Jul 24, 1991Jan 18, 1994Creative Research And ManufacturingBiopsy needle
US5336191 *Aug 13, 1992Aug 9, 1994Dlp, IncorporatedSurgical needle assembly
US5357974 *Mar 4, 1993Oct 25, 1994Thomas F. RobinsonBone marrow biopsy instrument
US5368045 *Sep 14, 1990Nov 29, 1994Boston Scientific CorporationBiopsy needle instrument
US5374245 *Apr 28, 1993Dec 20, 1994Mahurkar; Sakharam D.Reinforced multiple-lumen catheter and apparatus and method for making the same
US5466225 *May 27, 1994Nov 14, 1995Medtronic, Inc.Surgical needle assembly
US5471992 *Jan 30, 1995Dec 5, 1995Boston Scientific CorporationMulti-motion cutter multiple biopsy sampling device
US5542432 *Feb 1, 1994Aug 6, 1996Symbiosis CorporationEndoscopic multiple sample bioptome
US5571091 *Sep 1, 1995Nov 5, 1996Medtronic, Inc.Surgical needle assembly
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
US5638827 *May 12, 1995Jun 17, 1997Symbiosis CorporationSuper-elastic flexible jaws assembly for an endoscopic multiple sample bioptome
US5645075 *May 12, 1995Jul 8, 1997Symbiosis CorporationJaw assembly for an endoscopic instrument
US5779647 *Jun 7, 1995Jul 14, 1998Chau; SonnyAutomated biopsy instruments
US5779648 *Mar 12, 1997Jul 14, 1998Boston Scientific CorporationMulti-motion cutter multiple biopsy sampling device
US5807277 *Dec 15, 1995Sep 15, 1998Swaim; William R.Biopsy hand tool for capturing tissue sample
US5810744 *Nov 18, 1997Sep 22, 1998Boston Scientific CorporationInstrument for collecting multiple biopsy specimens
US5823971 *Nov 12, 1996Oct 20, 1998Boston Scientific CorporationMultiple biopsy sampling coring device
US5840043 *Jul 7, 1997Nov 24, 1998Symbiosis CorporationJaw assembly for an endoscopic instrument
US5871453 *Aug 29, 1996Feb 16, 1999Boston Scientific CorporationMoveable sample tube multiple biopsy sampling device
US5895361 *Feb 14, 1997Apr 20, 1999Symbiosis CorporationEsophageal biopsy jaw assembly and endoscopic instrument incorporating the same
US5951488 *Dec 3, 1996Sep 14, 1999Symbiosis CorporationEndoscopic multiple sample bioptome
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
US6099483 *May 10, 1996Aug 8, 2000Symbiosis CorporationJaw assembly for an endoscopic instrument
US6142957 *Jan 27, 1997Nov 7, 2000Boston Scientific CorporationMultiple biopsy sampling device
US6190399May 10, 1996Feb 20, 2001Scimed Life Systems, Inc.Super-elastic flexible jaw assembly
US6193671May 4, 1998Feb 27, 2001Symbiosis CorporationEndoscopic multiple sample bioptome with enhanced biting action
US6283974Nov 14, 1997Sep 4, 2001Aaron James AlexanderSurgical tip for phacoemulsification
US6416484 *Mar 24, 2000Jul 9, 2002Promex, Inc.Biopsy extractor
US6561988Nov 20, 2000May 13, 2003Symbiosis CorporationEndoscopic multiple sample bioptome with enhanced biting action
US6626850Mar 30, 1998Sep 30, 2003Allegiance CorporationAutomated biopsy instruments
US7201722 *Oct 25, 2002Apr 10, 2007Allegiance CorporationBone biopsy instrument having improved sample retention
US7625361 *Apr 26, 2004Dec 1, 2009Sumitomo Bakelite Company LimitedCatheter kit for burrow
US7670328May 30, 2003Mar 2, 2010Vidacare CorporationApparatus and method to provide emergency access to bone marrow
US7699850May 30, 2003Apr 20, 2010Vidacare CorporationApparatus and method to access bone marrow
US7811260Jul 27, 2005Oct 12, 2010Vidacare CorporationApparatus and method to inject fluids into bone marrow and other target sites
US7815642Feb 23, 2005Oct 19, 2010Vidacare CorporationImpact-driven intraosseous needle
US7850620Sep 11, 2007Dec 14, 2010Vidacare CorporationBiopsy devices and related methods
US7951089Jun 29, 2006May 31, 2011Vidacare CorporationApparatus and methods to harvest bone and bone marrow
US8038664Dec 31, 2008Oct 18, 2011Vidacare CorporationApparatus and method to inject fluids into bone marrow and other target sites
US8142365Nov 12, 2004Mar 27, 2012Vidacare CorporationApparatus and method for accessing the bone marrow of the sternum
US8202461Jan 14, 2009Jun 19, 2012Custom Medical Applications, Inc.Flow elements for use with flexible spinal needles, needle assemblies for manufacture and methods therefor
US8287496Jan 17, 2008Oct 16, 2012Custom Medical Applications, Inc.Flow elements for use with flexible spinal needles, needle assemblies and methods therefor
US8298180Nov 21, 2008Oct 30, 2012Becton, Dickinson And CompanySafety needle guard
US8298208Jul 27, 2010Oct 30, 2012Custom Medical Applications, Inc.Flow elements for use with flexible spinal needles, needle assemblies and methods therefor
US8308693Sep 4, 2009Nov 13, 2012Vidacare CorporationBone penetrating needle with angled ports
US8419683Sep 4, 2009Apr 16, 2013Vidacare CorporationIntraosseous device and methods for accessing bone marrow in the sternum and other target areas
US8480632Mar 5, 2010Jul 9, 2013Vidacare CorporationCartridge apparatus for injecting fluids into bone
US8506568Oct 19, 2005Aug 13, 2013Vidacare CorporationApparatus and method to access bone marrow
US8641715Jan 25, 2005Feb 4, 2014Vidacare CorporationManual intraosseous device
US8656929Sep 11, 2007Feb 25, 2014Vidacare CorporationMedical procedures trays and related methods
US8668698Sep 11, 2007Mar 11, 2014Vidacare CorporationAssembly for coupling powered driver with intraosseous device
US8684978Oct 7, 2010Apr 1, 2014Vidacare CorporationApparatus and method to inject fluids into bone marrow and other target sites
US8690791Apr 21, 2009Apr 8, 2014Vidacare CorporationApparatus and method to access the bone marrow
US8715287Dec 10, 2008May 6, 2014Vidacare CorporationApparatus and method to provide emergency access to bone marrow
EP0019104A2 *Apr 22, 1980Nov 26, 1980Intermedicat GmbHBiopsy needle for sampling histological specimens
EP0065054A1 *Aug 12, 1981Nov 24, 1982Metallisations Et Traitements Optiques M.T.O.Biopsy forceps
EP0497973A1 *Aug 15, 1991Aug 12, 1992Palestrant, Nathan, Trustee for The Aubrey and Faye Palestrant Irrevocable TrustApparatus and method for soft tissue biopsy
EP0829232A2 *Aug 29, 1997Mar 18, 1998City Of HopeMinimally invasive biopsy device
EP1136039A2 *Mar 16, 2001Sep 26, 2001Promex, Inc.Biopsy extractor
WO1989005608A1 *Dec 19, 1988Jun 29, 1989Coats Viyella Medical LtdBiopsy needle
WO2000012010A1 *Sep 1, 1999Mar 9, 2000Mary Elizabeth BushPercutaneous tissue removal device
WO2007074123A1 *Dec 20, 2006Jul 5, 2007Inst Mikrotechnik Mainz GmbhBiopsy needle set, injector apparatus and biopsy device for minimally invasive removal of tissue samples
Classifications
U.S. Classification600/567, 73/864.44, D24/147, 73/864.41
International ClassificationA61B10/02, A61B10/00
Cooperative ClassificationA61B10/0266
European ClassificationA61B10/02P6