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US2219605A - Device for performing a biopsy - Google Patents

Device for performing a biopsy Download PDF

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Publication number
US2219605A
US2219605A US21201438A US2219605A US 2219605 A US2219605 A US 2219605A US 21201438 A US21201438 A US 21201438A US 2219605 A US2219605 A US 2219605A
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Prior art keywords
needle
hollow
head
end
tissue
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Expired - Lifetime
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Turkel Henry
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Turkel Henry
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B10/00Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
    • A61B10/02Instruments for taking cell samples or for biopsy
    • A61B10/0233Pointed or sharp biopsy instruments
    • A61B10/025Pointed or sharp biopsy instruments for taking bone, bone marrow or cartilage samples
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00Cutting by use of rotating axially moving tool
    • Y10T408/89Tool or Tool with support
    • Y10T408/895Having axial, core-receiving central portion

Description

Oct. 29, 1940. l H. TURKEL 2,219,605

DEVICE FOR PERFORMING A BIOPSY Filed June 6, 1938 Muse: I

ONE

' Patented Oct. 29, 1940 UNITED STATES PATENT OFFKIE 21 Claims.

examination for determination of; the type of tissue present, such as normal, cancerous, infected, etc., or in other words, for correct diagnostic purposes. I

In the past, biopsy always caused the patient pain, bleeding and soreness, thus very often required anesthesia. Further the existing methods required surgical preparation for cutting a large area of skin, thus separating the subcutaneous and muscular tissue and then chiseling or gouging out a portion of the bone, or cutting out other deep seated tissue, resulting frequently in bleed- 5 ing, spreading of infection and scar formation.

My invention consists of a device whereby removal of tissue is accomplished with the least amount of injury to the superficial and deep tissue, very little or'no pain, practically no bleeding and as a result practically no scar is left and only local or no anesthesia is required.

There is a minimum of soreness because only a very small hole is made through the tissue. Because of the ease of its manipulation, no assistants or operating room are needed, and biopsy may be done at any doctors office or in the patients home or bedside without any preparation.

In the case of removal of purulent material (pus) from infected tissue, it is impossible for the pus to spread and infect nearby tissue. This is accomplished because of the outer tube which protects the surrounding tissue from contamination and the inner tube through which the infected material is carried out either by direct removal, suction or irrigation.

My improvement provides an easy means of withdrawing specimens deep seated or superficial, soft or hard, like bone, fat, muscle, etc., or even liquid material for gross or microscopic examination.

For an understanding of my invention, reference should be had to the appended drawing of which:

Figure 1 in an elevational view of the external needle.

Figure 1a is a plan-view of the same.

Figure 2 is an elevational view of the stylet of the external needle.

Figure 2a is a plan-view of the same.

Figure 3 is an elevational view of the internal needle.

Figure 3a is a plan-view of the same.

Figure 4 is an elevational view of the stylet of 6 the internal needle.

Figure 4a is a plan-view of the same.

Figure 5 is a partially sectioned view of the interior grinding needle with handle attached.

Figure 6 shows plan views of two possibletypes of grinding edges for the internal needle. 5

Figure '7 is a section segment of the internal cutting needle illustrating the conical interior of its end.

Figures 8A, 8B, 8C, 8D, 8E, 8F, 8G are elevational views illustrating the operation of my de- 10 vice step by step as described in the accompanying specification.

My device is comprised of five parts: an external guiding, leading, and protecting hollow needle I, of Fig. 1, of any desired length, the end 5 2 of which is sharp coming to a point on the outside edge of the needle, the end of the needle having been cut on an oblique angle. The needle has a hollow head 3 with which it can be manipulated or to which a larger handle 2| of any 20 desirable size or shape may be separately attached. The head is also provided with indicating means 4 later to be explained.

The stylet 5, in Fig. 2, for the external needle I is designed to fit within the latter, the head 6 of the 25 stylet with a projection or stopper being so designed with a neck I as to be received and held by the head 3 of the hollow needle, as in Fig. 8A. The head by which the stylet can be manipulated is so designed that if desired a large handle 2| 30 may be attached in order to obtain additional leverage. The head of the stylet 5 is provided with a means 8 designed to cooperate with the indicating means 4 above mentioned in the head of the hollow external needle I. The pointed-35 end 9 of the stylet is also cut obliquely so that when the stylet is inserted within the hollow external needle, the end 9 of the stylet cooperates with the end 2 of the hollow needle in order to prevent improper cutting of the tissue when the 40 external needle I is inserted.

The hollow internal or cutting needle I0, of Fig. 3, whose diameter is equal to that of the stylet of the external-needle, is designed to be slipped within the external needle I after the 45 stylet 5 is removed. Similarly, the hollow head II of the internal needle I0 is designed with a neck I2 or other cooperating means so as to be received by the hollow head 3 of the external needle, as in Fig. 8D.. The lengths of the two so needles may be varied but the relation must be such that the internal needle I0 is longer but narrower than the external needle I. The internal needle III is provided with a cutting edge I3 upon its end. The design of the end I3 01' the .55

internal needle and the design of the cutting edge or teeth, as in Fig. 6, may be of different types depending upon what type of tissue is sought to be removed or drilled into, or depending upon whether hard, soft, or liquid matter is to be removed.

For hard tissue such as bone, the inside surface I3a of the end I3 of the internal needle I0 is cone shaped or otherwise converging; Fig. 7, so that hard tissue once wedged into the end of the needle after being cut by the cutting edge of the hollow needle can be removed along with the removal of the needle itself. Experience in the past has shown that with a purely hollow cylindrical interior, the cut tissue would slip away from the hollow needle and could not be removed; but for removing soft tissue such as portions of a breast tumor or cancerous growth, a cylindrical interior of the hollow needle is adequate. Also, the latter type is adequate for the removal of liquids such as pus, blood or for irrig'ation purposes. The hollow needle may be so designed as to allow the removal of as large a sample of tissue as is desired. The head II being used to manipulate the cutting needle is so designed that a larger handle may be attached for manipulating the hollow needle. A suction adapter or syringe 23 may be inserted either directly or through the large handle 2| into the head I I of the internal needle I0. Further, the head II of the hollow needle I0 is provided with an indicating means I4 similar to 4 on the head of the external needle I. The neck I2 and the portion of the needle directly below is provided with a graduated scale I5 so that one may determine how deeply the needle has been inserted into the tissue; and also for determining how deep to go into the tissue.

A stylet I6 with a flat bottom I! designed to be received within the internal needle I0 for forcing out or expelling the tissue held in the end I3 once it had been cut so that the sample may be examined. This stylet I6 is also provided with a head I8 for manipulating the same or to be attached to a larger handle 2I, the head I8 to be received within the bottom opening of the handle M. The head ll of the stylet I6 is also provided with a means I9 similar to 8 on the other stylet 5 designed to cooperate with the indicating means I4 above mentioned in the head II of the internal needle III. The neck 20 is designed so as to be received within the hollow head II. The length of the stylet I6 is such that when it is inserted within the internal needle, the end H of the former I5 reaches the and I3 01 the internal needle so that any tissue accumulated in the end of the needle may be pushed out. The inventor does not limit himself to the use of square heads, for any other shaped head is practicable; but it is believed that the squar head embodiment is preferable.

A handle 2| is provided to facilitate the use of I, 5, I0 and I5. The handle may be of variable shapes designed with an opening in its bottom to loosely lit the heads of all needles and stylets so that they can be easily pushed through or turned in the tissue or for the grinding of bone by means of the added leverage, and at the same time the handle itself is easily removable.

The handle may be transparent or provided with a reading slot 22 so that if a glass extension or syringe is inserted in the opening provided therein and connected to the head of the internal needle the presence of liquid may be detected.

To facilitate drilling into hard bone, a hand tissue or deep tissue, but by using the above de-.

scribed handle of my invention, pushing the needle through deep tissue and bone tissue or grinding therein is facilitated.

Operation Removal of tissue specimens living or dead, normal or abnormal. is accomplished with my novel invention by the insertion together of the external needle I and its corresponding stylet 5 into the tissue until the points of both as in Fig. 8A reach that portion of the body wherefrom it is desired to remove a specimen for microscopic examination. It is to be noted that this operation is accomplished with the head 5 of the stylet 5 tight within the head of the external needle; and likewise the ends 9 and 2 of the stylet and the external needle cooperate with each other so that the oblique plane upon which the stylet is cut corresponds with the oblique plane on which the end of the external needle is cut. By this means, the tissue is separated and not cut out of the patient when the needle is inserted.

The next operation Fig. 8B is to remove only the stylet 5 and insert, as in Figure 80, the hollow internal grinding needle I0 within the external needle I. The internal needle Fig. 8D manipulated by twisting the handle cuts out as much of the desired specimen of tissue as is needed, which tissue as it is out proceeds up into the end I3 within the hollow internal needle I0. Figure 8E shows the outer needle pushed further in so that the external tissue near the end of I3 will not press upon the internal drilled core and thus prevent it from coming out of the body when I0 is removed. The specimen is then withdrawn by removing the internal needle I0. In the case where it is desired to remove pus, blood or other liquid, the head II of the needle I0 is so designed as to receive a syringe or suction adapter 23.

The stylet I5 is designed to fit into the internal needle I0 and when so inserted will cause the expelling of the desired specimen from the needle for examination.

Figure 8F shows the external needle remaining in the tissue. Before this is removed, the stylet 5 must again be inserted, Figure 8G, and the two, i. e., I and 5 removed together. This prevents the escape of pus or blood preventing the spread of any infection, because the tissue separated by the initial operation of the external needle elastically closes as I and 5 are removed closing up the hole and holding back any remaining liquids.

. Now having described the invention hereof, reference will be had to the claims which follow:

I claim:

1..A device for the removal of tissue from a body, comprised of an exterior guiding and projecting hollow pointed needle, the end of which is cut on an angle, a hollow head thereon, indicating means in the top of the head; a stylet or solid pointed needle, the end of which is cut on an oblique angle, the outside diameter of the stylet being smaller than the interior diameter of the external needle, a solid head thereon, cooperating means which will fit within the hollow head of the external needle, means on the neck thereof to cooperate with the indicating means on the head of the external needle; and a hollow pan internal needle having a hollow head adapted to fit within the hollow head of said external needle, said needle having an outside diameter substantially equal to that of the stylet whereby it forms a snug fit in the bore of said external needle and an internal bore, the outer end of said internal bore flaring outwardly whereby a tapered recess is formed therein.

2. A device for the removal of tissue from a body, comprised of an exterior guiding and projecting hollow pointed needle, the end of which is cut on an angle, a hollow head thereon, indicating means in the top of,the head; a stylet or solid pointed needle, the end of which is cut on an angle, the outside diameter of the stylet being smaller than the interior diameter of the external needle, a solid head forming a cooperating means which will fit within the hollow head of the external needle, means on the neck there of to cooperate with the indicating means on the head of the external needle; a hollow internal needle having a hollow head adapted to fit within the hollow head of said external needle, said needle having an outside diameter substantially equal tothat of the stylet whereby it forms a snug fit in the bore of said external needle, and an internal bore, the outer end of said internal bore flaring outwardly whereby a tapered recess is formed therein; a handle provided with a reading slot, an opening in the bottom adapted to loosely fit upon the heads of the needles and stylet, an opening extending vertically through the handle within which may be inserted a glass extension or syringe.

3. In combination with a device for the removal of tissue from a body, comprised of a hollow needle, a hollow head on the inner end thereof and a cutting means on the outer end thereof, indicating means in the top thereof, a calibrated scale upon the neck and upper part of the needle, an inwardly converging interior on said outer end; a solid. stylet or needle with a flat end,

designed to fit within the cutting needle, a solid head thereon, cooperating means which will fit within the hollow head of the cutting needle, and means upon the neck thereof to cooperate with the indicating means in the head of, said cutting needle.

4. In combination with a device for the removal of tissue from a body, comprised of an exterior guiding and projecting hollow pointed needle, the end of which is cut on an angle, a hollow head thereon, indicating means in the top of the head; and a hollow internal needle, a hollow head on the inner end thereof and a cutting means on the outer end thereof, indicating means in the top thereof, cooperating means which will fit within the hollow head of the external needle, a calibrated scale upon the neck and upper part of the needle, and an inwardly converging interior on the said outer end.

5. A hollow guiding needle for piercing" and separating tissue, a hollow needle slidably disposed therein, having upon its outer end a cutting edge and corresponding therewith an inwardly converging interior, within which cut tissue may be wedged for removal, said exterior needle relieving the cut tissue specimen from the pressure of surrounding tissue to facilitate its removal, said interior needle also providing a channel for the passage of purulent material.

6. A device for the removal of tissue from a body comprised of a hollow needle, a hollow head on the inner end thereof and a cutting means on the outer end thereof, and an inwardly concating means in the top of the head; a hollow internal needle, a hollow head on the inner end thereof and a cutting means on the outer end thereof, indicating means in the top thereof, cooperating means which will fit within the hollow head of the external needle, an inwardly converging interior on said outer end; and a handle provided with a reading slot, an opening in the bottom of the handlewhich will loosely fit upon the heads of the needles, an opening extending.

vertically through the handle within which may be inserted a glass extension or syringe.

8. A device for the removal of tissue from a body, comprised of a hollow needle, a hollow head on the inner end thereof and a cutting means I on the outer end thereof, an inwardly converging interior on said outer end; and a handle, provided with a reading slot, an opening in the bottom of the handle which will loosely fit upon the head of the needle, an opening extending vertically through the handle within which may be inserted a glass extension or syringe.

9. A device for the removal of tissue from a body, comprised of a hollow needle, a hollow head on the inner end thereof and a cutting means on the outer end thereof, an inwardly converging interior on said outer end.

10. In combination with a device for the removal of tissue from a body, comprised of an exterior guiding and projecting hollow pointed needle, the end of which is cut on an angle, a hollow head thereon, indicating means in the top of the head; and a hollow internal needle, a hollow head on the inner end thereof with a cutting means on the outer end thereof, indicating means in the top thereof, cooperating means which which will fit within the hollow head of the external needle, an inwardly converging interior on the cutting end thereof; a solid stylet or needle with a flat end, designed to fit withinthe internal needle, a solid head thereon, cooperating means'which will fit within the hollow head of the interior cutting needle, and means upon the neck thereof to cooperate with the indicating means in the head of the interior needle.

11. A device as set forth in claim 1, said hollow internal needle having a cutting means at its outer end.

12. A biopsy specimen needle comprising a head member on its inner end and a hollow shank 15. A biopsy punch comprising a shaft whose piercing end is beveled completely around its periphery, said piercing end having a larger aperture at its extremity than the main bore of the shaft.

16. A biopsy punch comprising a shaft having a piercing end which is beveled, and slopes inwardly, and a head for said shaft which is knurled to enable quick rotation of the entire punch.

17. A biopsy punch comprising a hollow shaft having a piercing end which slopes inwardly, and a removable stylet for said punch having a sharp end adapted to protrude beyond the piercing end of said shaft.

18. A device for the removal of tissue from a body comprising a hollow needle having a piercing end, said end having an inwardly converging interior.

19. A biopsy punch comprising a combination of an exterior guidinghollow needle, the ehdoi which is cut on an angle, a hollow head thereon; a solid headed needle with its end cut on an angle, adapted to be removably inserted within said exterior needle; and a hollow internal needle 20 having a hollow head adapted to removably fit within saidexterior needle. the other end of said internal needle flaring outwardly to form a tapered recess.

20. A biopsy punch comprising a combination of an exterior guiding hollow needle, a hollow head thereon; a solid headed needle adapted to be removably inserted within said exterior needle; and a. hollow internal needle having a holv.low head adapted to removably fit within said exterior needle, the outer end of said internal needle flaring outwardly to form a tapered recess.

21. The combination of an exterior guiding hollow needle having a hollow head; a hollow internal needle with a hollow head, adapted to removably fit within said guide needle, having cutting means on the outer end thereof; and a headed solid needle adapted to be removably inserted within said internal needle.

HENRY 'I'URKEL.

US2219605A 1938-06-06 1938-06-06 Device for performing a biopsy Expired - Lifetime US2219605A (en)

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Cited By (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2426535A (en) * 1944-10-21 1947-08-26 Turkel Henry Infusion and biopsy needle
US2522108A (en) * 1948-09-07 1950-09-12 Memorial Hospital Aspiration biopsy
US3058225A (en) * 1958-04-01 1962-10-16 Howard L Ward Probing instrument and depth indicator
US3147750A (en) * 1962-05-18 1964-09-08 Altair Corp Tissue interface detector for ventriculography and other applications
US3175554A (en) * 1963-03-26 1965-03-30 Becton Dickinson Co Split biopsy needle
US3330268A (en) * 1963-12-18 1967-07-11 Goldsmith Sidney Biopsy needle
US3515128A (en) * 1967-12-11 1970-06-02 Bernard F Mcevoy Skin biopsy punch
US3585986A (en) * 1969-08-21 1971-06-22 Becton Dickinson Co Stylet
US3850158A (en) * 1973-07-09 1974-11-26 E Elias Bone biopsy instrument and method
FR2293907A1 (en) * 1974-12-14 1976-07-09 Henriquez De Gaztanondo Carlos Device for puncture, injection, and catheterization drainage transcutaneous
US4010737A (en) * 1971-06-14 1977-03-08 Vilaghy Miklos I Bone biopsy instrument kit
US4147164A (en) * 1977-02-14 1979-04-03 Behney Charles A Method of performing implantations in a canine ear or the like for correctional purposes
US4513754A (en) * 1978-03-03 1985-04-30 Southland Instruments, Inc. Biopsy and aspiration unit with a replaceable cannula
US4708147A (en) * 1985-02-25 1987-11-24 Haaga John R Universal biopsy needle
US4846799A (en) * 1986-10-09 1989-07-11 Hakko Electric Machine Works Co., Ltd. Set of double needles for injecting liquid medicine
US4904130A (en) * 1989-01-11 1990-02-27 Gorman Jeremy W Cutting tools with depth indication
US5026350A (en) * 1986-10-09 1991-06-25 Hakko Electric Machine Works Co., Ltd. Set of double needles for injecting liquid medicine
WO1992007694A1 (en) * 1990-10-29 1992-05-14 Equalizer Industries, Inc. Apparatus and method for starting cutting wire
US5176643A (en) * 1991-04-29 1993-01-05 George C. Kramer System and method for rapid vascular drug delivery
US5331972A (en) * 1992-12-03 1994-07-26 Baxter International Inc. Bone marrow biopsy, aspiration and transplant needles
US5451210A (en) * 1991-04-29 1995-09-19 Lifequest Medical, Inc. System and method for rapid vascular drug delivery
US5611780A (en) * 1991-03-21 1997-03-18 United States Surgical Corporation Endoscopic surgical method
US5827236A (en) * 1992-11-10 1998-10-27 Seikagaku Kogyo Kabushiki Kaisha Injection tool and method of its use
DE10107513A1 (en) * 2001-02-09 2002-08-29 Gert Otten Hollow needle has corrugated or serrated end cutting edge at distal end, inner and outer casing surfaces, and slanting part
US6443910B1 (en) 2000-04-18 2002-09-03 Allegiance Corporation Bone marrow biopsy needle
US20030050574A1 (en) * 2000-04-18 2003-03-13 John Krueger Bone biopsy instrument having improved sample retention
US6730043B2 (en) 2000-04-18 2004-05-04 Allegiance Corporation Bone marrow biopsy needle
US20050148949A1 (en) * 2003-07-31 2005-07-07 Gabrielle Thumann Novel instrument for the transplantation of delicate micro-transplants
US20060276772A1 (en) * 2005-06-06 2006-12-07 Sherwood Services Ag Bayonet release of safety shield for needle tip
US20060276747A1 (en) * 2005-06-06 2006-12-07 Sherwood Services Ag Needle assembly with removable depth stop
US20070016138A1 (en) * 2005-07-11 2007-01-18 Sherwood Services Ag Safety reset key and needle assembly
US20070073244A1 (en) * 2005-07-11 2007-03-29 Sherwood Services Ag Needle assembly including obturator with safety reset
US7654735B2 (en) 2005-11-03 2010-02-02 Covidien Ag Electronic thermometer
US7731692B2 (en) 2005-07-11 2010-06-08 Covidien Ag Device for shielding a sharp tip of a cannula and method of using the same
US7850650B2 (en) 2005-07-11 2010-12-14 Covidien Ag Needle safety shield with reset
US8357104B2 (en) 2007-11-01 2013-01-22 Coviden Lp Active stylet safety shield
US20130150752A1 (en) * 2011-12-12 2013-06-13 Karl W. Swann Apparatus for Bone Aspiration
US8747359B2 (en) 1998-12-09 2014-06-10 Cook Medical Technologies Llc Hollow curved superelastic medical needle and method
US9874499B1 (en) 2015-04-23 2018-01-23 Boaz Lerer Method of sample preparation for epidermal nerve fiber density testing

Cited By (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2426535A (en) * 1944-10-21 1947-08-26 Turkel Henry Infusion and biopsy needle
US2522108A (en) * 1948-09-07 1950-09-12 Memorial Hospital Aspiration biopsy
US3058225A (en) * 1958-04-01 1962-10-16 Howard L Ward Probing instrument and depth indicator
US3147750A (en) * 1962-05-18 1964-09-08 Altair Corp Tissue interface detector for ventriculography and other applications
US3175554A (en) * 1963-03-26 1965-03-30 Becton Dickinson Co Split biopsy needle
US3330268A (en) * 1963-12-18 1967-07-11 Goldsmith Sidney Biopsy needle
US3515128A (en) * 1967-12-11 1970-06-02 Bernard F Mcevoy Skin biopsy punch
US3585986A (en) * 1969-08-21 1971-06-22 Becton Dickinson Co Stylet
US4010737A (en) * 1971-06-14 1977-03-08 Vilaghy Miklos I Bone biopsy instrument kit
US3850158A (en) * 1973-07-09 1974-11-26 E Elias Bone biopsy instrument and method
FR2293907A1 (en) * 1974-12-14 1976-07-09 Henriquez De Gaztanondo Carlos Device for puncture, injection, and catheterization drainage transcutaneous
US4147164A (en) * 1977-02-14 1979-04-03 Behney Charles A Method of performing implantations in a canine ear or the like for correctional purposes
US4513754A (en) * 1978-03-03 1985-04-30 Southland Instruments, Inc. Biopsy and aspiration unit with a replaceable cannula
US4708147A (en) * 1985-02-25 1987-11-24 Haaga John R Universal biopsy needle
US4846799A (en) * 1986-10-09 1989-07-11 Hakko Electric Machine Works Co., Ltd. Set of double needles for injecting liquid medicine
US5026350A (en) * 1986-10-09 1991-06-25 Hakko Electric Machine Works Co., Ltd. Set of double needles for injecting liquid medicine
US4904130A (en) * 1989-01-11 1990-02-27 Gorman Jeremy W Cutting tools with depth indication
WO1992007694A1 (en) * 1990-10-29 1992-05-14 Equalizer Industries, Inc. Apparatus and method for starting cutting wire
US5123315A (en) * 1990-10-29 1992-06-23 Equalizer Industries, Inc. Apparatus and method for starting cutting wire
US5611780A (en) * 1991-03-21 1997-03-18 United States Surgical Corporation Endoscopic surgical method
US5176643A (en) * 1991-04-29 1993-01-05 George C. Kramer System and method for rapid vascular drug delivery
US5451210A (en) * 1991-04-29 1995-09-19 Lifequest Medical, Inc. System and method for rapid vascular drug delivery
US5827236A (en) * 1992-11-10 1998-10-27 Seikagaku Kogyo Kabushiki Kaisha Injection tool and method of its use
US5331972A (en) * 1992-12-03 1994-07-26 Baxter International Inc. Bone marrow biopsy, aspiration and transplant needles
US8747359B2 (en) 1998-12-09 2014-06-10 Cook Medical Technologies Llc Hollow curved superelastic medical needle and method
US8784382B2 (en) 1998-12-09 2014-07-22 Cook Medical Technologies Llc Hollow curved superelastic medical needle and method
US6443910B1 (en) 2000-04-18 2002-09-03 Allegiance Corporation Bone marrow biopsy needle
US6730043B2 (en) 2000-04-18 2004-05-04 Allegiance Corporation Bone marrow biopsy needle
US7201722B2 (en) 2000-04-18 2007-04-10 Allegiance Corporation Bone biopsy instrument having improved sample retention
US20030050574A1 (en) * 2000-04-18 2003-03-13 John Krueger Bone biopsy instrument having improved sample retention
DE10107513A1 (en) * 2001-02-09 2002-08-29 Gert Otten Hollow needle has corrugated or serrated end cutting edge at distal end, inner and outer casing surfaces, and slanting part
US20050148949A1 (en) * 2003-07-31 2005-07-07 Gabrielle Thumann Novel instrument for the transplantation of delicate micro-transplants
US20100280410A1 (en) * 2005-06-06 2010-11-04 Covidien Ag Needle Assembly with Removable Depth Stop
US20060276747A1 (en) * 2005-06-06 2006-12-07 Sherwood Services Ag Needle assembly with removable depth stop
US20060276772A1 (en) * 2005-06-06 2006-12-07 Sherwood Services Ag Bayonet release of safety shield for needle tip
US8834417B2 (en) 2005-06-06 2014-09-16 Covidien Ag Needle assembly with removable depth stop
US8523809B2 (en) 2005-07-11 2013-09-03 Covidien Ag Device for shielding a sharp tip of a cannula and method of using the same
US7828773B2 (en) 2005-07-11 2010-11-09 Covidien Ag Safety reset key and needle assembly
US7850650B2 (en) 2005-07-11 2010-12-14 Covidien Ag Needle safety shield with reset
US7731692B2 (en) 2005-07-11 2010-06-08 Covidien Ag Device for shielding a sharp tip of a cannula and method of using the same
US7905857B2 (en) 2005-07-11 2011-03-15 Covidien Ag Needle assembly including obturator with safety reset
US20070073244A1 (en) * 2005-07-11 2007-03-29 Sherwood Services Ag Needle assembly including obturator with safety reset
US8162889B2 (en) 2005-07-11 2012-04-24 Covidien Ag Safety reset key and needle assembly
US8348894B2 (en) 2005-07-11 2013-01-08 Covidien Lp Needle assembly including obturator with safety reset
US20070016138A1 (en) * 2005-07-11 2007-01-18 Sherwood Services Ag Safety reset key and needle assembly
US8419687B2 (en) 2005-07-11 2013-04-16 Covidien Ag Device for shielding a sharp tip of a cannula and method of using the same
US7976498B2 (en) 2005-07-11 2011-07-12 Tyco Healthcare Group Lp Needle assembly including obturator with safety reset
US20110015579A1 (en) * 2005-07-11 2011-01-20 Tyco Healthcare Group Lp Safety Reset Key and Needle Assembly
US7654735B2 (en) 2005-11-03 2010-02-02 Covidien Ag Electronic thermometer
US8357104B2 (en) 2007-11-01 2013-01-22 Coviden Lp Active stylet safety shield
US20130150752A1 (en) * 2011-12-12 2013-06-13 Karl W. Swann Apparatus for Bone Aspiration
US9874499B1 (en) 2015-04-23 2018-01-23 Boaz Lerer Method of sample preparation for epidermal nerve fiber density testing

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