Patent US6840948B2 successfully refreshed from Google Patents.
US6840948B2
Expired / Lapsed
US
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Device for removal of tissue lesions
Assignee: Devicor Medical Products Inc
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Filing: 2002-06-06
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Granted: 2005-01-11
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Expires: 2022-06-06
Abstract
Abstract An excisional biopsy device and method are disclosed. The device can include a probe housing having a rotatable RF loop cutter mounted at the distal end of the probe, and the RF loop cutter can include at least one electrode supplied with an RF actuating signal for cutting tissue. A rotational drive and specimen containment sheath can also be included.
Inventors
- 👤 Thomas E. Albrecht
- 👤 John A. Hibner
- 👤 Elizabeth L. Sebern
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:30
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B10/00; A61B10/02; A61B2018/00053; A61B2018/00273; A61B2018/00291; A61B2018/00571; A61B2018/00601; A61B2018/1405; A61B2018/1407
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
116 words
A medical device for removal of a lesion from tissue comprising: a probe housing, the probe housing having a longitudinal axis; a rotatable cutter mounted at the distal end of the probe housing, wherein the rotatable cutter is mounted for rotation about an axis substantially perpendicular to the longitudinal axis of the probe housing, and wherein the cutter comprises at least one electrode; a drive for rotationally driving the cutter around a tissue specimen containing the lesion; a specimen containment sheath adapted to be deployed by the cutter as it is rotated to perform a rotational cut, such that the specimen containment sheath is drawn around the tissue specimen as the cutter cuts around the specimen.
Claim 2
Dependent Claim
116 words
A medical device for removal of a lesion from tissue comprising: a probe housing, the probe housing having a longitudinal axis; a rotatable cutter mounted at the distal end of the probe housing, wherein the rotatable cutter is mounted for rotation about an axis substantially perpendicular to the longitudinal axis of the probe housing, and wherein the cutter comprises at least one electrode; a drive for rotationally driving the cutter around a tissue specimen containing the lesion; a specimen containment sheath adapted to be deployed by the cutter as it is rotated to perform a rotational cut, such that the specimen containment sheath is drawn around the tissue specimen as the cutter cuts around the specimen.
Claim 3
Dependent Claim
34 words
The device of claim 1 , wherein the drive comprises first and second cables which are mechanically displaced to rotate the cutter, and wherein the cables also conduct RF electrical signals to the cutter.
Claim 4
Dependent Claim
23 words
The device of claim 1 , wherein the cutter comprises a generally semicircular RF loop cutter which cuts a generally spherical tissue specimen.
Claim 5
Dependent Claim
16 words
The device of claim 1 comprising a drawstring pulling the containment sheath around the tissue specimen.
Claim 6
Dependent Claim
14 words
The device of claim 1 adapted for flow communication with a source of vacuum.
Claim 7
Dependent Claim
10 words
The device of claim 1 comprising vacuum channels formed therein.
Claim 8
Dependent Claim
19 words
The device of claim 1 comprising at least one drive electrical cable housed in at least one vacuum channel.
Claim 9
Dependent Claim
15 words
The device of claim 1 comprising a disposable probe portion associated with a reusable handpiece.
Claim 10
Dependent Claim
24 words
The device of claim 1 wherein the probe housing comprises opposed legs and wherein the cutter is disposed for rotation between the opposed legs.
Claim 11
Dependent Claim
13 words
The device of claim 1 wherein the cutter comprises at least two electrodes.
Claim 12
Dependent Claim
15 words
The device of claim 10 wherein the two electrodes are energized independently of each other.
Claim 13
Dependent Claim
18 words
The device of claim 1 wherein the cutter comprises a single cutting electrode for tunneling and rotational cutting.
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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) | 2008-01-11 | 2008-07-12 | 2009-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2012-01-11 | 2012-07-12 | 2013-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2016-01-11 | 2016-07-12 | 2017-01-11 | $7700.00 | Window Closed / Lapsed |