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.

Patents

  1. Advanced Patent Search
Publication numberUS3605721 A
Publication typeGrant
Publication date20 Sep 1971
Filing date3 Nov 1969
Priority date3 Nov 1969
Also published asDE2053969A1
Publication numberUS 3605721 A, US 3605721A, US-A-3605721, US3605721 A, US3605721A
InventorsIsmet Hallac
Original AssigneeIsmet Hallac
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Biopsy needle
US 3605721 A
Abstract  available in
Images(1)
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

Sept. 20, 1971 l. HA LLAC BIOPSY NEEDLE Filed Nov. 5, 1969 INVENTOR ATTORNEYS,

United States Patent ()fice Patented Sept. 20, 1971 3,605,721 BIOPSY NEEDLE Ismet Hallac, 94 Sudbury Lane, Williamsville, N.Y. 14221 Filed Nov. 3, 1969, Ser. No. 873,343 Int. Cl. A61b /10 US. Cl. 1282B Claims ABSTRACT OF THE DISCLOSURE A composite disposable biopsy needle comprising an inner needle disposed Within an outer needle and fixedly secured thereto. The distal ends of the needles are provided with coextensive sets of prongs terminating in tissue piercing apexes. The distal end of the inner needle is joined to the body portion thereof by a weakened wall portion adapted to collapse upon relative rotational movement between the inner and outer needles to sever and capture a biopsy specimen in the inner needle.

BACKGROUND OF THE INVENTION This invention relates to a biopsy needle and, more particularly, to a disposable composite biopsy needle for extracting biopsy specimens from human tissue.

Many medical instruments have been devised in recent years to obtain biopsy specimens of living body tissue without the necessity of performing conventional surgery from the exterior of the body. Such instruments often employ sharp-edged blades for severing the tissue together with sheathing members which move axially relative to the blades for encapsulating the biopsy specimen. Sometimes the blades are moved apart into the tissue prior to the severing operation so that a greater lateral area of human tissue is penerated than is necessary. Also, many such instruments penetrate beyond the area in which the specimen is to be obtained so that adjacent areas are penetrated. In some of these instruments, and particularly in those wherein the severing blades or prongs are initially spread apart, a primary blood vessel may be inadvertently captured and severed, resulting in excessive and detrimental loss of blood to patients. After such an occurrence, medical personnel are reluctant to take biopsies for a while so that there is a tendency to perform surgery or other medical work without benefit of biopsies.

Other prior known biopsy instruments employ a number of somewhat complex, movablecomponents which require considerable time to assemble and use. After use, these components must be disassembled, individually cleaned, sterilized, and reassembled for further use.

SUMMARY OF THE INVENTION An object of the present invention is to provide an im proved disposable biopsy needle which is simple and inexpensive in construction, safe to use, expedient and reliable in operation, and which can be discarded after use.

Another object of this invention is to provide the foregoing biopsy needle with improved means to capture a specimen substantially at the depth of penetration without affecting other adjacent areas.

The disposable biopsy needle of the present invention is characterized by the provision of inner and outer needle members joined together at their distal ends to form a composite biopsy needle. The distal ends of the needle members are provided with coextensive sets of prongs terminating in apexes for facilitating the piercing and penetration of human tissue. The distal end of the inner needle member is joined tothe body portion thereof by a weakened wall portion comprising a plurality of narrow bars circumferentially spaced by slits or openings cut into the weakened wall portion. The weakened wall portion is adapted to collapse upon relative rotational movement between the inner and outer needle members to sever and capture a biopsy specimen therein.

The foregoing and other objects, advantages and characterizing features of the present invention will become clearly apparent from the ensuing detailed description of certain illustrative embodiments thereof, taken together with the accompanying drawings wherein like reference numerals denote like parts throughout the various views.

BRIEF DESCRIPTION OF THE DRAWING FIGURES FIG. 1 is a side elevational view of a composite biopsy needle of this invention showing a trochar fitted therein;

FIG. 2 is an end elevational view of the composite biopsy needle of FIG. 1, taken about on line 22 of FIG. 1;

FIG. 3 is a fragmentary side elevational view of the outer needle of the composite biopsy needle of FIG. 1;

FIG. 4 is a fragmentary side elevational view of the inner needle of the composite biopsy needle of FIG. 1;

FIG. 5 is a fragmentary longitudinal sectional view, on an enlarged scale, of the composite needle shown in FIG. 1 illustrating the weakened wall portion of the inner needle;

FIG. 6 is a view similar to FIG. 5 but illustrating the weakened wall portion in a collapsed condition;

FIG. 7 is a view similar to FIG. 6 showing the weakened wall portion severed; and

FIG. 8 is a fragmentary side elevational view of a modified form of the inner needle of this invention.

DESCRIPTION OF AN ILLUSTRATIVE EMBODIMENT Referring now in detail to the drawing, there is shown in FIG. 1 an illustrative embodiment of a composite, disposable, biopsy needle constructed in accordance with the present invention and generally designated 10', comprising an outer tubular member or needle 12 having a suitable handle 18 at one end thereof. Inner needle 16 is adapted to be received within outer needle 12 and is generally coaxial therewith. Needles 12 and. 16 are preferably formed of a thin-walled, surgical, stainless steel tubing. While dimensions may vary to suit various conditions and purposes, the outside diameter of outer needle 12 is on the order of 1.2 mm. in one example. Handles 14 and 18 can be formed of any suitable material bonded or otherwise fixedly secured to the outer cylindrical surfaces of needles 12 and 16, respectively.

The reference character 20 designates a fitted stylet or trochar assembled inside the inner needle 16 it is inserted into the tissue. Trochar 20 is formed of solid stock and is of a diameter to snugly fit in inner needle 16'. Trochar 20 is provided at its distal end with a point 22 adapted to project beyond the ends of inner and outer needles 16 and 12. The other end of trochar 20 is provided with a handle 14 having a hub 26 which fits within a cavity of handle 18.

When the fitted trochar 20 is inserted in inner needle 16, hub 26 is snugly received in cavity 28 with the solid body portion of trochar 20 reinforcing the walls of the composite biopsy needle 10. Suitable means are provided in order to prevent relative rotation between trochar 20 and the inner needle 16, such means comprising a lug 30 fixed to the inner side of handle 24 and projecting into a notch 32 in a flange 34 of handle 18. In a similar construction, a lug 36 can be provided on the inner side of handle 18 for insertion into a notch 38 provided in a flange 40 of handle 14 to prevent accidental or inadvertent relative rotation between inner and outer needles 16 and 12, respectively, prior to or during tissue penetration.

Outer needle 12 (FIG. 3) is cylindrical in shape and is provided with a body portion having equally spaced knifeedged projections or prongs 42 extending axially outwardly of needle 12 at the distal end thereof remote from handle 14. Prongs 42 are of generally V-shaped configuration and terminate in apexes 44 adapted to pierce and penetrate human body tissue. Although four equally spaced prongs are illustrated, it should be understood that any desired number arranged in any suitable pattern may be employed, as desired. Moreover, apexes 44 can lie in a. common transaxial plane normal to the axis of needle 12 as illustrated in FIG. 3 or in a transaxial plane inclined to the axis of needle 12.

Inner needle 16 is cylindrical in shape and has a body portion of a slightly lesser diameter than outer needle 12 so as to be telescopically received therein. The distal end of needle 16 also is provided with prongs 46 equal in number and substantially similar in configuration to prongs 42 of needle 12, terminating in apexes 48.

Inner needle 16 is weakened adjacent the distal end thereof by removing portions therefrom to form four elongated, relatively, narrow connecting bars 50 between the distal end of needle 16 and the body portion thereof (FIG. Bars 50 define generally rectangular slits or openings 52 therebetween and these may be formed by drilling or any other suitable metal removing operation. Of course, any necessary or desired number of bars 50 can be provided within the purview of this invention.

An alternate construction is illustrated in FIG. 8 wherein the weakened portion can be formed by grinding through inner needle 16 at right angles to form generally elliptical openings 54 defining bars 56 which are arcuately curved along opposite sides to form reduced width portions 58 at the midpoints of bars 56 and progressively wider portions 60 extending in opposite directions and which merge into said distal end and said body portion, respectively. The grinding operation leaves razor sharp cutting edges along the marginal edges of bars 56 to facilitate the tissue severing operation hereinafter described. Still another expedient would be to form circular openings in needle 16 by cross drilling therethrough at right angles to form a weakened wall portion.

In assemblying the biopsy needle of the present invention, inner needle 16 is snugly fitted into outer needle 12 with prongs 46 coinciding with prongs 42 whereby the walls of the exposed edges are tapered in a common plane. The distal ends of needles 12 and 16 can be fastened together by a suitable solder admitted through an opening 62 provided in outer needle 12 (FIG. 5 or otherwise fixedly secured together as shown at 64 in FIGS. 5 and 6.

The composite biopsy needle can be enclosed in a protective plastic bag or container, with or without a trochar 20, in a sterilized condition ready for use when needed.

In use, with trochar 20 fitted into the composite biopsy needle and with point 22 projecting outwardly thereof, the initial perforation is made through the skin of the patient into the tissue until the leading or distal end is inserted to the point where it is desired to obtain the tissue specimen. Trochar is then removed from biopsy needle 10, which is further penetrated into the tissue until such tissue is disposed in the distal end of inner needle 16 inwardly of bars 50. Handles 14 and 18 are then axially moved apart slightly to remove lug 36 from notch 38 and manipulated to rotate needles 12 and 16 relative to each other, thereby twisting bars as shown in FIG. 6 to deform or collapse the weakened wall portion of inner needle 16. Needles 12 and 16 are further twisted until bars 50 are severed as shown in FIG. 7 to sever and trap a specimen of the tissue within inner needle 1-6. The distal end of inner needle 16 projects forwardly of the trapped specimen a distance of approximately 2 mm. so that biopsy needle 10 is penetrated substantially to the depth at which the biopsy specimen is obtained. In this manner, the depth of penetration is restricted to the area where the biopsy specimen is obtained. Also, the area penetrated is localized within the confines of outer needle 12. The composite biopsy needle 10 is then removed from the patient with the biopsy specimen captured in a cleancut circular core form within inner needle 16. The biopsy specimen is then removed for analysis and the composite biopsy needle discarded.

From the foregoing, it is seen that the present invention fully accomplishes its intended objects and provides an improved disposable biopsy needle which can be discarded after use thereby eliminating excessive handling occasioned by cleaning, sterilizing, and reassembling. By the provision of a weakened wall portion adjacent the distal end of the needle, a biopsy specimen can be captured substantially to the depth of penetration of the needle as opposed to many conventional needles which require penetration well beyond the area from which the specimen is obtained. Also, penetration is localized in an axial zone without irritating or affecting laterally adjacent areas or extending substantially beyond the desired area from which the biopsy specimen is to be obtained. Moreover, the specimen obtained is in the form of an undamaged cylindrical core which can be easily analyzed.

Preferred forms of this invention having been disclosed in detail, it is to be understood that this has been done by way of illustration only.

I claim:

1. A disposable biopsy needle comprising a hollow outer needle and a hollow inner needle telescopically received within said outer needle, said outer needle having a body portion and a distal end provided with prongs terminating in apexes, said inner needle having a body portion, a distal end and deformable means adjacent said distal end collapsing upon relative rotational movement between said inner and outer needles to capture a biopsy specimen within said inner needle.

2. A disposable biopsy needle according to claim 1 wherein said means comprises a weakened wall portion.

3. A disposable biopsy needle according to claim 1 wherein said distal end of said inner needle is fixed to said outer needle.

4. A disposable biopsy needle according to claim 1 wherein said distal end of said inner needle is provided with prongs terminating in apexes substantially coinciding with said prongs and apexes of said outer needle.

5. A disposable biopsy needle according to claim 1 wherein said means comprises a plurality of bars interposed between said body portion and said distal end of said inner needle.

6. A disposable biopsy needle according to claim 1 wherein said inner and outer needles are provided with handles, respectively, for facilitating rotational movement between said needles.

7. A disposable biopsy needle according to claim 1 wherein said inner and outer needles are formed of thinwalled steel tubing.

8. A disposable biopsy needle according to claim 5 wherein said bars comprise narrow, thin strips connecting said distal end to said body portion.

9. A disposable biopsy needle according to claim 5 wherein said bars have narrow central portions and progressively wider arcutate portions extending in oppo- References Cited UNITED STATES PATENTS 6/1956 Ullery 1282B 9/ 1961 Silverrnan 1282B 6 Naz 128-2B Hustad 128-263 Royce 1282B(UX) Stewart 1282B Dwyer et al. 1282B Bulloch 1282B Robinson 128-2B ALDRICH F. MEDBERY, Primary Examiner

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3943628 *19 Mar 197416 Mar 1976Kronman Joseph HSpoon excavator for applying chemically acting tooth decay attacking fluid
US4372095 *23 Feb 19768 Feb 1983Allen De SatnickTennis ball pressurizer
US4403617 *8 Sep 198113 Sep 1983Waters Instruments, Inc.Biopsy needle
US4702260 *16 Apr 198527 Oct 1987Ko Pen WangFlexible bronchoscopic needle assembly
US4785826 *2 Mar 198722 Nov 1988Ward John LBiopsy instrument
US4793363 *11 Sep 198627 Dec 1988Sherwood Medical CompanyBiopsy needle
US4832045 *18 Mar 198823 May 1989Goldberger Robert EBiopsy instrument
US4844088 *11 Dec 19874 Jul 1989Parviz KambinSurgical cutting device with reciprocating cutting member
US4887613 *30 Jun 198819 Dec 1989Interventional Technologies Inc.Cutter for atherectomy device
US4895166 *23 Nov 198723 Jan 1990Interventional Technologies, Inc.Rotatable cutter for the lumen of a blood vesel
US4913143 *28 May 19863 Apr 1990The United States Of America As Represented By The Secretary Of The Air ForceTrephine assembly
US4942788 *26 Jul 198924 Jul 1990Interventional Technologies, Inc.Method of manufacturing a cutter for atherectomy device
US4950277 *23 Jan 198921 Aug 1990Interventional Technologies, Inc.Atherectomy cutting device with eccentric wire and method
US4966604 *23 Jan 198930 Oct 1990Interventional Technologies Inc.Expandable atherectomy cutter with flexibly bowed blades
US4986807 *23 Jan 198922 Jan 1991Interventional Technologies, Inc.Atherectomy cutter with radially projecting blade
US5019088 *7 Nov 198928 May 1991Interventional Technologies Inc.Ovoid atherectomy cutter
US5083570 *18 Jun 199028 Jan 1992Mosby Richard AVolumetric localization/biopsy/surgical device
US5111828 *18 Sep 199012 May 1992Peb Biopsy CorporationDevice for percutaneous excisional breast biopsy
US5176693 *11 May 19925 Jan 1993Interventional Technologies, Inc.Balloon expandable atherectomy cutter
US5192291 *13 Jan 19929 Mar 1993Interventional Technologies, Inc.Rotationally expandable atherectomy cutter assembly
US5197484 *8 May 199230 Mar 1993Peb Biopsy CorporationMethod and device for precutaneous excisional breast biopsy
US5224945 *13 Jan 19926 Jul 1993Interventional Technologies, Inc.Compressible/expandable atherectomy cutter
US5224949 *13 Jan 19926 Jul 1993Interventional Technologies, Inc.Camming device
US5353804 *17 Mar 199311 Oct 1994Peb Biopsy CorporationMethod and device for percutaneous exisional breast biopsy
US5425376 *8 Sep 199320 Jun 1995Sofamor Danek Properties, Inc.Method and apparatus for obtaining a biopsy sample
US5522398 *7 Jan 19944 Jun 1996Medsol Corp.Bone marrow biopsy needle
US5634473 *8 Jul 19963 Jun 1997Medsol CorporationBone marrow biopsy needle
US5709697 *22 Nov 199520 Jan 1998United States Surgical CorporationApparatus and method for removing tissue
US5766195 *18 Mar 199416 Jun 1998Cordis Innovasive Systems, Inc.Optical shunt cutter system
US5782775 *14 Jun 199621 Jul 1998United States Surgical CorporationApparatus and method for localizing and removing tissue
US5800450 *3 Oct 19961 Sep 1998Interventional Technologies Inc.Neovascularization catheter
US5817034 *20 Oct 19956 Oct 1998United States Surgical CorporationApparatus and method for removing tissue
US5857982 *8 Sep 199512 Jan 1999United States Surgical CorporationApparatus and method for removing tissue
US6015391 *6 Oct 199818 Jan 2000Medsol, Corp.Biopsy needle structure
US6036657 *26 Oct 199814 Mar 2000United States Surgical CorporationApparatus for removing tissue
US6077231 *17 Nov 199720 Jun 2000United States Surgical CorporationApparatus and method for localizing and removing tissue
US6117153 *27 Jul 199812 Sep 2000Interventional Technologies, Inc.Neovascularization catheter
US6165137 *16 Sep 199926 Dec 2000United States Surgical CorporationApparatus and method for localizing and removing tissue
US621395722 Sep 199810 Apr 2001United States Surgical CorporationApparatus and method for removing tissue
US62677324 Apr 200031 Jul 2001Imagyn Medical Technologies, Inc.Incisional breast biopsy device
US62966517 Mar 20002 Oct 2001Interventional Technologies, Inc.Method of using neovascularization catheter
US638314520 Oct 20007 May 2002Imagyn Medical Technologies California, Inc.Incisional breast biopsy device
US643605424 Nov 199920 Aug 2002United States Surgical CorporationBiopsy system
US65512532 Feb 200122 Apr 2003Imagyn Medical TechnologiesIncisional breast biopsy device
US663223123 Aug 200114 Oct 2003Scimed Life Systems, Inc.Segmented balloon catheter blade
US70116705 Aug 200314 Mar 2006Scimed Life Systems, Inc.Segmented balloon catheter blade
US717260910 Oct 20036 Feb 2007Boston Scientific Scimed, Inc.Apparatus for supporting a segmented blade on a balloon catheter
US738440030 Apr 200710 Jun 2008Goldenberg Alec SBone marrow biopsy needle
US745564527 Dec 200725 Nov 2008Goldenberg Alec SBone marrow biopsy needle
US7530987 *24 Apr 200212 May 2009Cardica, Inc.Surgical tool for creating an incision in a tubular vessel
US76080494 Mar 200827 Oct 2009Goldenberg Alec SBiopsy needle
US7731667 *26 Aug 20088 Jun 2010Goldenberg Alec SBone marrow biopsy needle
US7819888 *11 Jun 200426 Oct 2010Innovasive Devices, Inc.Method and apparatus for harvesting and implanting bone plugs
US812863920 May 20106 Mar 2012Restoration Robotics, Inc.Tools and methods for harvesting follicular units
US813323718 Mar 200813 Mar 2012Restoration Robotics, Inc.Biological unit removal tools with concentric tubes
US821111618 Mar 20083 Jul 2012Restoration Robotics, Inc.Harvesting tools for biological units
US822666413 Mar 200924 Jul 2012Restoration Robotics, Inc.Biological unit removal tools with movable retention member
US82982461 Apr 201030 Oct 2012Restoration Robotics, Inc.Follicular unit removal tool with pivoting retention member
US84446567 Feb 201221 May 2013Restoration Robotics, Inc.Tools and methods for harvesting follicular units
US869668626 Jun 201215 Apr 2014Restoration Robotics, Inc.Biological unit removal tools with movable retention member
US8814882 *18 Mar 200826 Aug 2014Restoration Robotics, Inc.Biological unit removal tools with retention mechanism
US887683927 Sep 20124 Nov 2014Restoration Robotics, Inc.Follicula unit removal tool with pivoting retention member and method of its use
US8882681 *29 Jun 201111 Nov 2014Cook Medical Technologies LlcThrough-cradle soft tissue biopsy device
US88827841 Mar 201211 Nov 2014Restoration Robotics, Inc.Biological unit removal tools with concentric tubes
US889458612 Dec 201125 Nov 2014Alec S. GoldenbergSnarecoil retrieval device for capturing and retrieving a specimen
US9017343 *21 Feb 201428 Apr 2015Restoration Robotics, Inc.Biological unit removal tools with movable retention member
US907250327 Jul 20107 Jul 2015Odoardo BuressinianiAutomatic device for transcutaneous biopsy
US908446514 Oct 201421 Jul 2015Restoration Robotics, Inc.Biological unit removal tools and methods
US91196127 Apr 20081 Sep 2015Odoardo BuressinianiDevice for transcutaneous biopsy
US9204867 *19 Oct 20148 Dec 2015Robert Bilgor PeliksTissue removal device and method of use
US93869663 Jun 201212 Jul 2016Theragenics CorporationMethods and apparatus for tissue removal
US966871819 Jun 20166 Jun 2017Theragenics CorporationMethods and apparatus for tissue removal
US97636483 Nov 201519 Sep 2017Becton, Dickerson and CompanyTissue removal device and method of use
US20040098018 *5 Aug 200320 May 2004Radisch Herbert RSegmented balloon catheter blade
US20040210246 *11 Jun 200421 Oct 2004Johanson Mark A.Method and apparatus for harvesting and implanting bone plugs
US20050261603 *20 May 200424 Nov 2005Wittenberg Gregory PTransparent biopsy punch
US20060253046 *6 May 20059 Nov 2006Wittenberg Gregory PBiopsy punch having limited length cutting edge
US20070142743 *16 Dec 200521 Jun 2007Provencher Kevin MTissue sample needle actuator system and apparatus and method of using same
US20070142744 *16 Dec 200521 Jun 2007Provencher Kevin MTissue sample needle and method of using same
US20070265548 *30 Apr 200715 Nov 2007Goldenberg Alec SBone Marrow Biopsy Needle
US20080154150 *27 Dec 200726 Jun 2008Goldenberg Alec SBone marrow biopsy needle
US20080234602 *18 Mar 200825 Sep 2008Oostman Clifford ABiological unit removal tools with retention mechanism
US20090082697 *26 Aug 200826 Mar 2009Goldenberg Alec SBone marrow biopsy needle
US20090227895 *4 Mar 200810 Sep 2009Goldenberg Alec SBiopsy needle
US20090240261 *13 Mar 200924 Sep 2009Restoration Robotics, Inc.Biological unit removal tools with movable retention member
US20100082042 *11 Sep 20091 Apr 2010Drews Michael JBiological unit removal tool with occluding member
US20100160827 *7 Apr 200824 Jun 2010Odoardo BuressinianiDevice for transcutaneous biopsy
US20110004120 *28 May 20106 Jan 2011Angiotech Pharmaceuticals Inc.Biopsy device needle set
US20130006143 *29 Jun 20113 Jan 2013Wen Hong NeohThrough-cradle soft tissue biopsy device
US20140171827 *21 Feb 201419 Jun 2014Restoration Robotics, Inc.Biological Unit Removal Tools with Movable Retention Member
US20150065912 *19 Oct 20145 Mar 2015Robert PeliksTissue Removal Device and Method of Use
CN102458261A *28 May 201016 May 2012血管技术药物公司Biopsy device needle set
EP3038548A4 *24 Aug 201423 Aug 2017Robert PeliksTissue removal device and method of use
WO1995018568A1 *6 Jan 199513 Jul 1995Medsol Corp.Bone marrow biopsy needle
WO2002089680A1 *28 Mar 200214 Nov 2002Injecta GmbhApparatus for collecting skin tissue samples
WO2008122870A17 Apr 200816 Oct 2008Odoardo BuressinianiDevice for transcutaneous biopsy
WO2010039413A1 *14 Sep 20098 Apr 2010Restoration Robotics, Inc.Biological unit removal tool with occluding member
WO2012082614A1 *12 Dec 201121 Jun 2012Goldenberg Alec SSnarecoil retrieval device for capturing and retrieving a specimen
Classifications
U.S. Classification600/567
International ClassificationA61B10/00, A61B19/00, A61B10/02, A61B17/00
Cooperative ClassificationA61B2019/307, A61B2017/0023, A61B10/0266, A61B2017/320064, A61B2017/32004, A61B2019/4873
European ClassificationA61B10/02P6