US7025732B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Biopsy device with variable speed cutter advance
Assignee: Devicor Medical Products Inc
•
Filing: 2004-02-24
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Granted: 2006-04-11
•
Expires: 2024-02-24
Abstract
Abstract A biopsy device having a translating and rotating cutter is disclosed. The translational speed of the cutter is varied using a variable pitch member. The variable pitch member can include a shaft having a relatively coarse threaded portion for rapid cutter advance and a relatively finer threaded portion for cutter advance during tissue severing.
Inventors
- 👤 Bennie Thompson
- 👤 Beth McCombs
- 👤 John Hunt
- 👤 John Kretcham
- 👤 John A. Hibner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:28
CPC Classifications
A; A61; A61B; A61B10/00; A61B10/02; A61B10/0233; A61B10/0266; A61B10/0275; A61B17/00; A61B17/32; A61B17/320016; A61B17/32002; A61B2010/0208; A61B2017/00367; A61B2017/00398
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
65 words
A biopsy device comprising: an outer cannula having a lateral tissue receiving port; an inner tubular cutter disposed for translation within the cannula; a rotating member having a screw thread feature of varying pitch, wherein the rotating member is operatively associated with the cutter for varying the translational speed of the cutter as the tissue cutter is advanced in relation to the tissue receiving port.
Claim 2
Dependent Claim
65 words
A biopsy device comprising: an outer cannula having a lateral tissue receiving port; an inner tubular cutter disposed for translation within the cannula; a rotating member having a screw thread feature of varying pitch, wherein the rotating member is operatively associated with the cutter for varying the translational speed of the cutter as the tissue cutter is advanced in relation to the tissue receiving port.
Claim 3
Dependent Claim
14 words
The biopsy device of claim 1 comprising a motor for rotating the rotating member.
Claim 4
Dependent Claim
13 words
The biopsy device of claim 2 wherein the motor is an electric motor.
Claim 5
Dependent Claim
24 words
The biopsy device of claim 1 wherein the rotating member has a relatively coarse thread pitch portion and a relatively fine thread pitch portion.
Claim 6
Dependent Claim
27 words
The biopsy device of claim 1 wherein the rotating member is adapted to rotate without translation of the cutter in at least one position of the cutter.
Claim 7
Dependent Claim
44 words
The biopsy device of claim 5 wherein the rotating member is adapted to rotate without translation of the cutter when the cutter is at a position of distal most cutter travel and when the cutter is at a position of proximal most cutter travel.
Claim 8
Dependent Claim
37 words
The biopsy device of claim 5 wherein the screw thread feature is adapted at the proximal and distal ends of the screw thread feature to permit rotation of the rotating member without providing translation of the cutter.
Claim 9
Dependent Claim
41 words
The biopsy device of claim 1 comprising a cam nut supported for translation along the rotating member, wherein the cam nut engages the screw thread feature of the rotating member, and wherein the cutter is rotatably supported on the cam nut.
Claim 10
Dependent Claim
17 words
The biopsy device of claim 8 further comprising a rotation shaft for providing rotation of the cutter.
Claim 11
Dependent Claim
64 words
A biopsy device comprising: a cannula having a lateral tissue receiving port; a tissue cutter disposed coaxially with the cannula, the cutter adapted for translation relative to the cannula; and a variable pitch member operatively associated with the tissue cutter for providing variation in the translational speed of the tissue cutter as the tissue cutter is advanced in relation to the tissue receiving port.
Claim 12
Dependent Claim
64 words
A biopsy device comprising: a cannula having a lateral tissue receiving port; a tissue cutter disposed coaxially with the cannula, the cutter adapted for translation relative to the cannula; and a variable pitch member operatively associated with the tissue cutter for providing variation in the translational speed of the tissue cutter as the tissue cutter is advanced in relation to the tissue receiving port.
Claim 13
Dependent Claim
20 words
The biopsy device of claim 10 wherein the tissue cutter is adapted for translation and rotation relative to the cannula.
Claim 14
Dependent Claim
15 words
The biopsy device of claim 10 comprising a motor for rotating the variable pitch member.
Claim 15
Dependent Claim
21 words
The biopsy device of claim 10 wherein the variable pitch member comprises a shaft having a threaded portion of varying pitch.
Claim 16
Dependent Claim
28 words
The biopsy device of claim 10 comprising a first motor for providing rotation of the variable pitch member and a second motor for providing rotation of the cutter.
Claim 17
Dependent Claim
16 words
The biopsy device of claim 10 wherein the cutter is disposed for translation within the cannula.
Claim 18
Dependent Claim
23 words
The biopsy device of claim 10 wherein the variable pitch member comprises a relatively coarse pitch portion and a relatively fine pitch portion.
Claim 19
Dependent Claim
22 words
The biopsy device of claim 16 wherein the relatively fine pitch portion provides translation of the cutter past the tissue receiving port.
Claim 20
Dependent Claim
36 words
The biopsy device of claim 10 wherein the variable pitch member comprises a shaft having a threaded portion of varying pitch, and wherein the diameter of the shaft varies alone a length of the threaded portion.
Claim 21
Dependent Claim
74 words
A biopsy device comprising: an outer cannula having a lateral tissue receiving port; an inner tubular cutter disposed for translation within the cannula; a rotating member having a screw thread feature of varying pitch, wherein the rotating member is operatively associated with the cutter for varying the translational speed of the cutter, and wherein the rotating member is adapted to rotate without translation of the cutter in at least one position of the cutter.
Claim 22
Dependent Claim
74 words
A biopsy device comprising: an outer cannula having a lateral tissue receiving port; an inner tubular cutter disposed for translation within the cannula; a rotating member having a screw thread feature of varying pitch, wherein the rotating member is operatively associated with the cutter for varying the translational speed of the cutter, and wherein the rotating member is adapted to rotate without translation of the cutter in at least one position of the cutter.
Claim 23
Dependent Claim
44 words
The biopsy device of claim 19 wherein the rotating member is adapted to rotate without translation of the cutter when the cutter is at a position of distal most cutter travel, and when the cutter is at a position of proximal most cutter travel.
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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) | 2009-04-10 | 2009-10-10 | 2010-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2013-04-10 | 2013-10-10 | 2014-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2017-04-10 | 2017-10-10 | 2018-04-11 | $7700.00 | Window Closed / Lapsed |