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WO1982003167A1 - Aiguille a biopsie - Google Patents

Aiguille a biopsie Download PDF

Info

Publication number
WO1982003167A1
WO1982003167A1 PCT/US1982/000270 US8200270W WO8203167A1 WO 1982003167 A1 WO1982003167 A1 WO 1982003167A1 US 8200270 W US8200270 W US 8200270W WO 8203167 A1 WO8203167 A1 WO 8203167A1
Authority
WO
WIPO (PCT)
Prior art keywords
cannula
stylet
housing
molded
cap
Prior art date
Application number
PCT/US1982/000270
Other languages
English (en)
Inventor
Donald N Mehl
Original Assignee
Donald N Mehl
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Donald N Mehl filed Critical Donald N Mehl
Publication of WO1982003167A1 publication Critical patent/WO1982003167A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B10/00—Instruments for taking body samples for diagnostic purposes; Other methods or instruments for diagnosis, e.g. for vaccination diagnosis, sex determination or ovulation-period determination; Throat striking implements
    • A61B10/02—Instruments for taking cell samples or for biopsy
    • A61B10/0233—Pointed or sharp biopsy instruments
    • A61B10/025—Pointed or sharp biopsy instruments for taking bone, bone marrow or cartilage samples
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B10/00—Instruments for taking body samples for diagnostic purposes; Other methods or instruments for diagnosis, e.g. for vaccination diagnosis, sex determination or ovulation-period determination; Throat striking implements
    • A61B10/02—Instruments for taking cell samples or for biopsy
    • A61B10/0233—Pointed or sharp biopsy instruments
    • A61B10/025—Pointed or sharp biopsy instruments for taking bone, bone marrow or cartilage samples
    • A61B2010/0258—Marrow samples

Definitions

  • Field of the Invention he present invention pertains to a surgical instrument and, more par- ticularly, pertains to a bone marrow biopsy needle which can be either disposable or reusable.
  • This needle includes a tubular cannula member having a flanged clip which is molded into the housing.
  • Prior Art The prior art biopsy needles have all presented some type of draw ⁇ backs when used by the physician or surgeon, and which are particularly less than desirable.
  • Some prior art instruments are disposable and cast with very few structural details attended to, with the result that the interlocking between the stylet and the cannula provides for considerable play and the instrument can come apart in the user's hands, resulting in injury not only to the patient but more so to the user by the sharp metal edges poking upwards into the physician's hands.
  • Other prior art devices have some form of interlocking structure but the interlocking structure is not positive, resulting in play between the cannula and stylet during the process of incision into the patient resulting in considerable discomfort.
  • Other types of prior art structures have numerous components which during surgery are not practical in utilization by the user due to the screwing and unscrewing of the fittings.
  • the prior art has been lacking a needle having a needle readily and cost effectively secured such as through molding into the cannula housing.
  • the present invention overcomes the disadvantages of prior art references by providing a biopsy needle having a winged handle and detent locking between the stylet and cannula.
  • the general purpose of the present invention is to provide a bone marrow biopsy needle having a cannula and a stylet, both of which engage and interlock with respect to each other, and which can be con- veniently grasped by the. physician or surgeon in the palm of the hand to provide secure control during the biopsy process.
  • a biopsy needle having a cannula and stylet which interlock with each other, the cannula including a cannula having one end with at least one and preferably two formed members extending outwardly from the end, the other end having a swaged bevel ground and buffed tip providing sharp knife edges in the range of 30-45 with respect to a molded housing, the molding housing molded about the formed members for securing thereto and including two vertically positioned hand wings of decreasing size extending outwardly therefrom, a button extending outwardly from an upward vertical member of reduced diameter with respect to the housing, and an internal bore extending through the housing to the top of the formed end of the cannula for accepting a syringe for drawing of bone marrow during the biopsy, and a stylet including one end having a bend for securing into a stylet cap and the other end having a beveled end in the range of 30-60° and buffed to a polished end having a
  • a needle including a molded cannula housing, a tubular cannular member, cylindrical cannula clip having at least one outwardly extending flange and preferably two outwardly extending flanges extending outwardly from the cylindrical axis of the tube and the clip, opposing each other and forming an angle of 45-135 with respect to each other, and soldered to an upper portion of the tubular cannula member whereby the cannula housing is molded about the tubular cannula member and the cannula clip thereby securing the same in the cannula housing.
  • a significant aspect and feature of the present invention is a biopsy needle having wing-shaped handles facilitating gripping and engagement by the physician or surgeon user.
  • Another significant aspect and feature of the present invention is an interlocking stylet and cannula providing for not only interlocking of the structural members in a positive detent fashion but also predetermined orientation between the knife sharp
  • the interlocking structure also positions the stylet at a proper distance from the cannula, providing for consistent and secure biopsy surgery.
  • An additional significant aspect and feature is a tubular cannular member which is firmly and securely molded in position in the cannular housing through the molded engagement of the cannular clip which is soldered to the tubular cannula member. This protects the surgeon's hand during biopsy as well as the patient.
  • a further significant aspect and feature of the present invention is a bone marrow biopsy needle which can be constructed either as a disposable instrument or as a reusable instrument depending upon the type of molded material chosen for the cannula and stylet housings.
  • An additional significant aspect and feature of the present invention is a biopsy needle which can be constructed in different sizes for different sized individuals or for different applications.
  • a bone marrow biopsy needle including a cannula and stylet which interlock with each other.
  • the disclosure also applies to needle structure per se, and is not to be construed as being limited to only biopsy needles, as other applications are inherent within the scope of this disclosure.
  • FIG. 1 illustrates a perspective view of a cannula and a stylet
  • FIG. 2 illustrates a sectional view of the cannula
  • FIG. 3 illustrates a sectional view of the stylet
  • FIG. 4 illustrates a view of a biopsy needle including the engaged cannula and stylet
  • FIG. 5 illustrates an enlarged section of the cannula and stylet knife-sharp edges oriented with respect to each other;
  • FIG. 6 illustrates a cross sectional view of an alternative embodiment of the cannular member of the present invention, and;
  • FIG. 7 illustrates a sectional vie"- taken along line 7-7 of FIG. 6.
  • FIG. 1 illustrates a perspective view of a biopsy needle 10 having separted components of a cannula member 12 and a stylet member 14.
  • the cannula member 12 includes a longitudinal cannula 16 having
  • a sharp knife edge 18 which has been swaged, beveled, ground and buffed as later described in detail, formed ends 20a and 20b illustrated in FIG. 2 extending outwardly at an angular tubular relationship, a molded housing 22 of ABS material or the like having
  • the stylet member 14 includes a metal stylet 34 having a sharp edge 36 which has been ground, buffed and polished, a bent end 38 for securing into a molded cap 40, a detent locking groove 42 having a spring member
  • a downward extending boss 48 extends downwardly internal to the cap 40 for engagement with a rim 28a of the cannula housing 22.
  • Locking vertical grooves 50 are provided about the cap for engagement by physician or surgeon user, and a rounded top 52 is provided for an individual's hand.
  • FIG. 2 which illustrates a cross-sectional view of the cannula member 12, shows the particular detail of the formed ends 20a and 20b securing the cannula 16 into the housing 22 about the vertical chamber 32 which decreases from a large diameter to a small diameter in a lure taper, then to a chamfer, and finally to a diameter which is slightly larger than the internal diameter of the cannula 16 so that a syringe can be inserted into the chamber 32 to draw bone marrow up into the cannula.
  • a probe can be utilized to freely push the bone marrow out through the formed end of the cannula and onto a slide, without damaging or distort- ing the bone marrow.
  • FIG. 3 illustrates a sectional view of the stylet member 14 where all numerals correspond to those elements previously described.
  • the end of the stylet has an angle between horizontal and the edge of 45 plus or minus 2° while the angle may be in the range of 30-60°.
  • the tip is buffed and polished to maintain a sharp knife edge.
  • the upper end 38 of the stylet 34 is bent for securing into the cap 40.
  • FIG. 4 illustrates the biopsy needle 10 of the present invention where the stylet member 14 is engaged and interlocked to the cannula member 12.
  • the detent button 30 provides for locking of the members 12 and 14 together by engagement through the groove 42, and up and over the spring member 44 into the positive locking detent 46.
  • a spring member 44 provides a positive sensory digital feedback signal that the members are engaged where button 30 resides in the chamber area of positive locking member 46.
  • the button 30 and positive locking chamber 46 always provide that the knife edges 18 of the cannula 16 and 36 of the stylet 34 are always oriented with respect to each other as illustrated in the figure, and as also illustrated in FIG. 5, providing least minimum effort on the physician's/surgeon's part during the biopsy surgery.
  • the boss 48 of the stylet member 14 seats the stylet onto the cannula at a proper predetermined distance and provides for the orientation of the knife edges.
  • the beveled tips of the stylet and cannula provide for the proper cutting action through the bone due to the wedge action of the tips.
  • the particular angles of the wedges and orientation with respect to each other is one of the keys to obtaining a suitable bone marrow sample during the biopsy process.
  • the contour of the handles 24 and 26 and the winged con ⁇ figuration provide for positive feel to the physician/ surgeon during the biopsy.
  • the formed ends 20a and 20b secure the cannula 16 into the housing 22, and maintain round configuration of the cannula tube end 16 in the housing 22, providing for passage of a sample without damaging or distorting the sample.
  • the cannula In processing the cannula, first the cannula is formed at the housing end and then swaged over a mandrel to a predetermined internal diameter over a predetermined length from the lower end. Then the cannula is eccentrically rotated about the offset centerline and ground at the same time to achieve the 35 plus or minus 5 tip angle in conjunction with
  • FIG. 6 illustrates a sectional view of an alterna ⁇ tive embodiment of a cannula 100.
  • the cannula clip 106 includes a partial cylindrical member 108 with two outwardly extending flanges 110 and 112 at an angle with respect to each other.
  • the clip 106 has a finite height and is soldered, welded, or the like towards an upper portion of the tubular cannula member 102 as illustrated in FIG. 6.
  • the gradual taper 114 and lured taper 116 decreases to a constant diameter 118 substantially equal to the inner diameter of the tubular cannula member 102 and mates thereto forming a smooth junction.
  • the cannula housing 118 having a preferred geometrical shape is molded about the tubular cannula member 102 including the clip 106 with flanges 110 and 112 further securing member 102 in engagement to and within the housing 118.
  • the clip 106 soldered or the like to the tube 102 provides for positive and secure engagement to the housing 118. All other structure for engaging to the stylet is identical as previously described for FIGS. 1-5.
  • FIG. 7 illustrates a sectional view taken along a line 7-7 of FIG. 6 where all numerals correspond to those elements previously described. Attention is drawn to the angle of the flanges 110 and 112 while the cylindrical member 108 is illustrated partially encompassing the tubular cannula member 102. The angle of 110-112 is in the range of 45-135°. 11
  • biopsy needle of the present invention can be made without departing from the apparent scope thereof.
  • the disclosure is applicable to generic needles and is not to be construed as being limited to biopsy needles.
  • the disclosure is applicable to attachment on a needle to structure in general and for forming a predetermined tip at the end of the needle.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Rheumatology (AREA)
  • Pathology (AREA)
  • Immunology (AREA)
  • Engineering & Computer Science (AREA)
  • Hematology (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)

Abstract

Aiguille a biopsie pour des biopsies de la moelle osseuse ou analogue comprenant une canule (12, 102), un logement de canule soutenant celle-ci et un stylet (14) comprenant un chapeau de stylet (40) soutenant le stylet, le stylet s'engageant a l'interieur de la canule selon une relation predeterminee et le chapeau du stylet s'emboitant dans le logement de la canule. L'aiguille a biopsie est construite de maniere a etre soit jetable soit reutilisable en fonction du materiau utilise pour le logement de la canule et le chapeau du stylet. Le logement de la canule comprend des ailettes verticales (24, 26) s'etendant vers l'exterieur depuis le logement de maniere a reposer sur la paume de la main d'un medecin, une canule possedant des extremites faconnees qui s'engagent et se fixent a l'interieur du logement de la canule, ainsi qu'un bouton allonge (30) s'etendant vers l'exterieur depuis le sommet du logement de la canule de maniere a former un emboitement par goupille d'arret (44), le chapeau du stylet permettant un alignement du stylet par rapport a la canule de l'aiguille a biopsie. L'extremite de la canule est faconnee par un procede d'emboutissage, de coupe en biseau et de meulage, ainsi que de polissage permettant d'obtenir un bord de couteau aiguise. Le stylet comprend un organe longitudinal possedant une extremite coupee en biseau, meulee et polie (36) pourvue d'un bord coupant autour de la pointe, et l'autre extremite du stylet est courbee et moulee dans le chapeau du stylet, le chapeau du stylet comprenant une rainure de blocage a detente par ressort pouvant s'emboiter dans le bouton du logement de la canule. Le chapeau du stylet est arrondi en pointe et comprend des rainures verticales (50) fournissant une prise pendant le blocage et le deblocage. Le stylet (34) penetre dans la canule et peut etre verrouille par une torsion autour du sommet de la canule communiquant au medecin un signal tactile digital positif de reaction. Une variante de mise en oeuvre decrit une canule comprenant un organe de canule
PCT/US1982/000270 1981-03-16 1982-03-03 Aiguille a biopsie WO1982003167A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US24401581A 1981-03-16 1981-03-16
US244015810316 1981-03-16

Publications (1)

Publication Number Publication Date
WO1982003167A1 true WO1982003167A1 (fr) 1982-09-30

Family

ID=22921050

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1982/000270 WO1982003167A1 (fr) 1981-03-16 1982-03-03 Aiguille a biopsie

Country Status (3)

Country Link
EP (1) EP0074402A1 (fr)
CA (1) CA1172536A (fr)
WO (1) WO1982003167A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0097706A1 (fr) * 1981-12-24 1984-01-11 Creative Research And Manufacturing Inc. Aiguille de ponction de moelle osseuse
EP0564630A1 (fr) * 1991-10-25 1993-10-13 ELIAS, Elias G. Dispositif d'excision controlee de tissu sur un corps vivant
EP0754431A1 (fr) * 1995-07-19 1997-01-22 Medical Biopsy Inc. Aiguille à biopsie
US5615690A (en) * 1995-02-15 1997-04-01 Symbiosis Corporation Tissue core biopsy cannula
EP1210911A2 (fr) * 2000-11-23 2002-06-05 Anwarul Islam Aiguille pour biopsie de moelle osseuse
US7009006B2 (en) 2001-12-13 2006-03-07 Rohm And Haas Company Crosslinkable composition
CN108836451A (zh) * 2018-07-11 2018-11-20 上海锐植医疗器械有限公司 一种骨科手术穿刺器

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2850007A (en) * 1956-05-31 1958-09-02 American Cyanamid Co Biopsy device
US3330268A (en) * 1963-12-18 1967-07-11 Goldsmith Sidney Biopsy needle
US3628524A (en) * 1969-02-28 1971-12-21 Khosrow Jamshidi Biopsy needle
US3633580A (en) * 1967-01-18 1972-01-11 Knox Lab Inc Hypodermic needle
US3995619A (en) * 1975-10-14 1976-12-07 Glatzer Stephen G Combination subcutaneous suture remover, biopsy sampler and syringe
US4020837A (en) * 1975-11-04 1977-05-03 Pharmaco, Inc. (Entire) Hollow piercing tip for vial stoppers
US4266555A (en) * 1979-11-09 1981-05-12 Khosrow Jamshidi Biopsy needle with stylet and cannula orientation
US4314565A (en) * 1978-03-03 1982-02-09 Lee Peter F Biopsy and aspiration needle unit

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2850007A (en) * 1956-05-31 1958-09-02 American Cyanamid Co Biopsy device
US3330268A (en) * 1963-12-18 1967-07-11 Goldsmith Sidney Biopsy needle
US3633580A (en) * 1967-01-18 1972-01-11 Knox Lab Inc Hypodermic needle
US3628524A (en) * 1969-02-28 1971-12-21 Khosrow Jamshidi Biopsy needle
US3995619A (en) * 1975-10-14 1976-12-07 Glatzer Stephen G Combination subcutaneous suture remover, biopsy sampler and syringe
US4020837A (en) * 1975-11-04 1977-05-03 Pharmaco, Inc. (Entire) Hollow piercing tip for vial stoppers
US4314565A (en) * 1978-03-03 1982-02-09 Lee Peter F Biopsy and aspiration needle unit
US4266555A (en) * 1979-11-09 1981-05-12 Khosrow Jamshidi Biopsy needle with stylet and cannula orientation

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0097706A1 (fr) * 1981-12-24 1984-01-11 Creative Research And Manufacturing Inc. Aiguille de ponction de moelle osseuse
EP0097706A4 (fr) * 1981-12-24 1985-07-01 Creative Res And Mfg Inc Aiguille de ponction de moelle osseuse.
EP0564630A1 (fr) * 1991-10-25 1993-10-13 ELIAS, Elias G. Dispositif d'excision controlee de tissu sur un corps vivant
EP0564630A4 (en) * 1991-10-25 1994-07-13 Elias G Elias A device for the controlled excision of tissue from a living body
US5615690A (en) * 1995-02-15 1997-04-01 Symbiosis Corporation Tissue core biopsy cannula
US5928162A (en) * 1995-02-15 1999-07-27 Symbiosis Corporation Tissue core biopsy cannula
EP0754431A1 (fr) * 1995-07-19 1997-01-22 Medical Biopsy Inc. Aiguille à biopsie
EP1210911A2 (fr) * 2000-11-23 2002-06-05 Anwarul Islam Aiguille pour biopsie de moelle osseuse
EP1210911A3 (fr) * 2000-11-23 2005-06-29 Anwarul Islam Aiguille pour biopsie de moelle osseuse
US7009006B2 (en) 2001-12-13 2006-03-07 Rohm And Haas Company Crosslinkable composition
CN108836451A (zh) * 2018-07-11 2018-11-20 上海锐植医疗器械有限公司 一种骨科手术穿刺器

Also Published As

Publication number Publication date
EP0074402A1 (fr) 1983-03-23
CA1172536A (fr) 1984-08-14

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