US5341816A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Biopsy device
Assignee: Individual
•
Filing: 1992-12-07
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Granted: 1994-08-30
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Expires: 2012-12-07
Abstract
Abstract A biopsy device for obtaining biopsy specimens from hard or soft tissue includes a biopsy extracting member which may be inserted into a cannula and a removable biopsy specimen holder which is preferably threaded into the biopsy extracting member. The specimen holder preferably includes a cutting edge (e.g., serrated for hard tissue, slicing for soft tissue), and retaining fishscales or scallop members for securely holding The biopsy specimen. Once the biopsied specimen is cut from the tissue, it may be sent, within the removable specimen holder, to the pathologist for analysis.
Inventors
- 👤 William C. Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:33
CPC Classifications
A; A61; A61B; A61B10/00; A61B10/02; A61B10/0233; A61B10/025; A61B17/00; A61B17/34; A61B17/3472
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
142 words
A biopsy device comprising: a biopsy extracting member having a hollow interior portion and a substantially smooth generally cylindrical exterior whereby it may closely slidingly fit within a generally cylindrical cannula; and a biopsy specimen holder removably attached to one end of said biopsy extracting member, said specimen holder including an elongated tubular specimen receiving portion which is open at both ends, a portion which fits within and engages said extracting member, and a cutting portion which extends from said one end of said biopsy extracting member; whereby when said specimen holder is detached from said biopsy extracting member a pusher member having an elongated generally cylindrical shape and being sized to closely slidingly fit within said specimen receiving portion of said specimen holder may be used to remove any biopsy specimen contained within said specimen holder without opening said specimen holder.
Claim 2
Dependent Claim
142 words
A biopsy device comprising: a biopsy extracting member having a hollow interior portion and a substantially smooth generally cylindrical exterior whereby it may closely slidingly fit within a generally cylindrical cannula; and a biopsy specimen holder removably attached to one end of said biopsy extracting member, said specimen holder including an elongated tubular specimen receiving portion which is open at both ends, a portion which fits within and engages said extracting member, and a cutting portion which extends from said one end of said biopsy extracting member; whereby when said specimen holder is detached from said biopsy extracting member a pusher member having an elongated generally cylindrical shape and being sized to closely slidingly fit within said specimen receiving portion of said specimen holder may be used to remove any biopsy specimen contained within said specimen holder without opening said specimen holder.
Claim 3
Dependent Claim
42 words
The biopsy device of claim 1 wherein both said biopsy extracting member and said specimen holder are threaded, whereby said removable attachment may be achieved by engagement of the threads on said biopsy extracting member with the threads on said specimen holder.
Claim 4
Dependent Claim
15 words
The biopsy device of claim 1 wherein said cutting portion includes a serrated cutting edge.
Claim 5
Dependent Claim
14 words
The biopsy device of claim 1 wherein said cutting portion includes a slicing edge.
Claim 6
Dependent Claim
14 words
The biopsy device of claim 1 wherein said elongated tubular portion is substantially transparent.
Claim 7
Dependent Claim
43 words
The biopsy device of claim 5 wherein said biopsy extracting member includes at least one viewing portal adjacent said tubular portion when said specimen holder is attached to said biopsy extracting member, whereby a specimen held within said specimen holder may be viewed.
Claim 8
Dependent Claim
13 words
The biopsy device of claim 5 wherein said elongated tubular portion is plastic.
Claim 9
Dependent Claim
22 words
The biopsy device of claim 1 wherein said biopsy extracting member, further includes a handle at the end opposite said one end.
Claim 10
Dependent Claim
36 words
The biopsy device of claim 1 wherein said specimen holder includes at least one inwardly extending retaining member adapted to inhibit movement of any specimen contained within said specimen holder in at least one longitudinal direction.
Claim 11
Dependent Claim
26 words
The biopsy device of claim 9 wherein said specimen holder includes a plurality of inwardly extending scallop retaining members formed by perforations in said cutting portion.
Claim 12
Dependent Claim
29 words
The biopsy device of claim 9 wherein said specimen holder includes a plurality of inwardly extending fishscale retaining members formed by machining the interior surface of said cutting portion.
Claim 13
Dependent Claim
112 words
In a kit for obtaining biopsy specimens of the type including a generally cylindrical cannula, and a sharply pointed starter trocar adapted to closely slidingly fit within the cannula, the improvement comprising: a biopsy extracting member having a hollow interior portion and a substantially smooth generally cylindrical exterior to closely slidingly fit within the cannula; and a biopsy specimen holder removably attached to one end of said biopsy extracting member, said specimen holder including an elongated one-piece tubular specimen receiving portion which is open at both ends, a portion which fits within and engages said extracting member, and a cutting portion which extends from said one end of said biopsy extracting member.
Claim 14
Dependent Claim
112 words
In a kit for obtaining biopsy specimens of the type including a generally cylindrical cannula, and a sharply pointed starter trocar adapted to closely slidingly fit within the cannula, the improvement comprising: a biopsy extracting member having a hollow interior portion and a substantially smooth generally cylindrical exterior to closely slidingly fit within the cannula; and a biopsy specimen holder removably attached to one end of said biopsy extracting member, said specimen holder including an elongated one-piece tubular specimen receiving portion which is open at both ends, a portion which fits within and engages said extracting member, and a cutting portion which extends from said one end of said biopsy extracting member.
Claim 15
Dependent Claim
26 words
The biopsy kit of claim 12 wherein said cutting portion has a serrated cutting edge which extends from said one end of said biopsy extracting member.
Claim 16
Dependent Claim
41 words
The biopsy kit of claim 12 wherein said specimen holder includes an elongated tubular portion adapted to fit within said biopsy extracting member, and a cutting portion having a slicing edge which extends from one end of said biopsy extracting member.
Claim 17
Dependent Claim
20 words
The biopsy kit of claim 12 wherein said specimen holder includes a plurality of perforations forming inwardly extending retaining members.
Claim 18
Independent Claim
152 words
An apparatus for obtaining hard tissue biopsy specimens comprising: a holding member having a substantially smooth exterior surface of circular cross section whereby it may closely slidingly fit within a generally cylindrical cannula and a generally cylindrically shaped hollow interior portion extending into said holding member from one end thereof, and a biopsy specimen holder having a generally cylindrically shaped hollow specimen receiving portion which is open at both ends and a portion which fits within and engages said hollow interior portion of said holding member so that said specimen holder is removably attachable to said holding member, whereby when said specimen holder is detached from said holding member a pusher member having an elongated generally cylindrical shape and being sized to closely slidingly fit within said specimen receiving portion of said specimen holder may be used to remove any biopsy specimen contained within said specimen holder without opening said specimen holder.
Claim 19
Independent Claim
152 words
An apparatus for obtaining hard tissue biopsy specimens comprising: a holding member having a substantially smooth exterior surface of circular cross section whereby it may closely slidingly fit within a generally cylindrical cannula and a generally cylindrically shaped hollow interior portion extending into said holding member from one end thereof, and a biopsy specimen holder having a generally cylindrically shaped hollow specimen receiving portion which is open at both ends and a portion which fits within and engages said hollow interior portion of said holding member so that said specimen holder is removably attachable to said holding member, whereby when said specimen holder is detached from said holding member a pusher member having an elongated generally cylindrical shape and being sized to closely slidingly fit within said specimen receiving portion of said specimen holder may be used to remove any biopsy specimen contained within said specimen holder without opening said specimen holder.
Claim 20
Dependent Claim
20 words
The biopsy kit of claim 16 wherein said specimen holder is removably attachable to said holding member by threaded engagement.
Claim 21
Dependent Claim
15 words
The biopsy kit of claim 16 wherein said specimen holder includes a serrated cutting edge.
Claim 22
Dependent Claim
36 words
The biopsy kit of claim 16 wherein said specimen holder includes at least one inwardly extending retaining member adapted to inhibit movement of any specimen contained within said specimen holder in at least one longitudinal direction.
Claim 23
Dependent Claim
13 words
The apparatus of claim 16 wherein said holding member is a T-shaped handle.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-08-29 | 1998-02-28 | 1998-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-08-29 | 2002-02-28 | 2002-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-08-29 | 2006-02-28 | 2006-08-30 | $7700.00 | Window Closed / Lapsed |