CA2030595A1 - Disposable soft tissue biopsy apparatus - Google Patents

Disposable soft tissue biopsy apparatus

Info

Publication number
CA2030595A1
CA2030595A1 CA 2030595 CA2030595A CA2030595A1 CA 2030595 A1 CA2030595 A1 CA 2030595A1 CA 2030595 CA2030595 CA 2030595 CA 2030595 A CA2030595 A CA 2030595A CA 2030595 A1 CA2030595 A1 CA 2030595A1
Authority
CA
Grant status
Application
Patent type
Prior art keywords
needle
tissue
cannula
position
end
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA 2030595
Other languages
French (fr)
Other versions
CA2030595C (en )
Inventor
Harold G. Leigh
David L. O'dell
Hugh A. Bourassa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MEDICAL DEVICE TECHNOLOGIES Inc
Original Assignee
Harold G. Leigh
David L. O'dell
Hugh A. Bourassa
National-Standard Company
Nsmp, Inc.
Medical Device Technologies, Inc.
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

Links

Classifications

    • 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
    • A61B10/0266Pointed or sharp biopsy instruments means for severing sample
    • A61B10/0275Pointed or sharp biopsy instruments means for severing sample with sample notch, e.g. on the side of inner stylet
    • 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
    • A61B2010/0208Biopsy devices with actuators, e.g. with triggered spring mechanisms

Abstract

Soft tissue biopsy apparatus (10) for obtaining a tissue specimen. An elongate housing (12) has an opening (20) at one end (14). A hollow cannula (26) is positioned within the housing, is reciprocally movable therewithin, and one end (28) of the needle extends through the opening for insertion into tissue (T) from which a specimen is to be taken. A needle (44) is positioned within the cannula, is reciprocally movable therewithin, and also has an end (46) extending through the opening for insertion into the tissue. This needle has a recess (50) adjacent its outer end in which a tissue specimen is captured. The needle is connected to a slide (68) by which the needle is moved independently of the cannula. A sleeve (110) installed over the housing is manually operable to move the slide to a selected and cocked position prior to insertion of the cannula/needle into the tissue. Movement of the slide moves the second needle from a first position to a second position while the cannula remains stationary. A release mechanism (114) operable by the user after insertion of the assembly into the tissue initially returns the needle to its first position and then moves the cannula from a first position to a second position. Movement of the cannula to its second position causes the end of the said cannula to cover the end of the needle to capture the tissue specimen within the recess.
CA 2030595 1989-11-24 1990-11-23 Disposable soft tissue biopsy apparatus Expired - Fee Related CA2030595C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US07/440,647 1989-11-24
US07440647 US5036860A (en) 1989-11-24 1989-11-24 Disposable soft tissue biopsy apparatus

Publications (2)

Publication Number Publication Date
CA2030595A1 true true CA2030595A1 (en) 1991-05-25
CA2030595C CA2030595C (en) 1997-01-07

Family

ID=23749603

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2030595 Expired - Fee Related CA2030595C (en) 1989-11-24 1990-11-23 Disposable soft tissue biopsy apparatus

Country Status (6)

Country Link
US (1) US5036860A (en)
EP (1) EP0429390B1 (en)
JP (1) JPH03210250A (en)
CA (1) CA2030595C (en)
DE (2) DE69027838D1 (en)
DK (1) DK0429390T3 (en)

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Also Published As

Publication number Publication date Type
DK0429390T3 (en) 1996-11-11 grant
CA2030595C (en) 1997-01-07 grant
US5036860A (en) 1991-08-06 grant
DE69027838T2 (en) 1997-02-06 grant
EP0429390A1 (en) 1991-05-29 application
DE69027838D1 (en) 1996-08-22 grant
JPH03210250A (en) 1991-09-13 application
EP0429390B1 (en) 1996-07-17 grant

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