US5295990A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tissue sampling and removal device
Assignee: Individual
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Filing: 1992-09-11
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Granted: 1994-03-22
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Expires: 2012-09-11
Abstract
Abstract A device for removing a tissue portion and cauterizing surrounding tissue, includes a pair of cutting jaws having a heat-insulated inner surface defining a chamber for retaining tissue cut by the jaws. The device includes actuating means for pivoting the cutting jaws between opened and closed positions, and a control means for directing cauterizing current to the jaws when the jaws in a closed position, to thereby cauterize tissue surrounding the jaws.
Inventors
- 👤 John M. Levin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:53
CPC Classifications
A; A61; A61B; A61B10/00; A61B10/02; A61B10/06; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B18/1442; A61B18/1445; A61B17/00; A61B2017/00831; A61B2017/0088; A61B2018/00053; A61B2018/00059; A61B2018/00071; A61B2018/00083; A61B2018/00107; A61B2018/00136; A61B2018/00571; A61B2018/00577; A61B18/1206; A61B2018/1246; A61B2018/1253; A61B2018/1405; A61B2018/1412; A61B2018/1452; A61B2018/1455
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
122 words
A tissue sampling device comprising: (a) Means for removing tissue from an area of a living being comprising a pair of cutting jaws located at the first end of the device, the pair of cutting jaws being pivotally connected to permit the jaws to open and close, each of said cutting jaws comprising a peripheral cutting edge and a cavity to hold said tissue, said means further comprising actuating means for pivoting the cutting jaws between opened and closed positions; (b) control means for cauterizing the direct area from which the tissue has been removed, after said tissue has been removed; and (c) means to prevent the cauterization of said tissue comprising heat insulating material forming the interior surface of said cavity.
Claim 2
Dependent Claim
122 words
A tissue sampling device comprising: (a) Means for removing tissue from an area of a living being comprising a pair of cutting jaws located at the first end of the device, the pair of cutting jaws being pivotally connected to permit the jaws to open and close, each of said cutting jaws comprising a peripheral cutting edge and a cavity to hold said tissue, said means further comprising actuating means for pivoting the cutting jaws between opened and closed positions; (b) control means for cauterizing the direct area from which the tissue has been removed, after said tissue has been removed; and (c) means to prevent the cauterization of said tissue comprising heat insulating material forming the interior surface of said cavity.
Claim 3
Dependent Claim
20 words
The device of claim 1 wherein the heat insulating material is selected from the group comprising ceramic, plastic and rubber.
Claim 4
Dependent Claim
39 words
The device of claim 1 wherein the control means comprises a means to provide electrical energy to the jaws for heating the outer surfaces of the jaws when said jaws are closed to thereby cauterize tissue surrounding said jaws.
Claim 5
Independent Claim
109 words
A method for removing a tissue sample from an area of a living being comprising the steps of: (a) Providing an instrument with cutting jaws which forms a cavity for holding said tissue sample; (b) providing an inner surface of heat insulating material to said cavity to insulate said tissue sample from the heat of cauterization; (c) locating said instrument at a desired position for removing said tissue sample; (d) operating said jaws to excise said tissue sample; (e) applying heat, after said tissue sample is excised, to cauterize the wound caused by the excising of said tissue; and (f) removing said insulated tissue from said cavity for testing.
Claim 6
Independent Claim
109 words
A method for removing a tissue sample from an area of a living being comprising the steps of: (a) Providing an instrument with cutting jaws which forms a cavity for holding said tissue sample; (b) providing an inner surface of heat insulating material to said cavity to insulate said tissue sample from the heat of cauterization; (c) locating said instrument at a desired position for removing said tissue sample; (d) operating said jaws to excise said tissue sample; (e) applying heat, after said tissue sample is excised, to cauterize the wound caused by the excising of said tissue; and (f) removing said insulated tissue from said cavity for testing.
References Cited (Backward Citations)
US3895636A
Cited
US3934115A
Cited
FR2355521A1
Cited
US4522206A
Cited
US4785825A
Cited
US4817630A
Cited
US4655216A
Cited
US4881550A
Cited
US4953559A
Cited
US4815476A
Cited
US4887612A
Cited
US5052402A
Cited
US5074311A
Cited
US5085659A
Cited
US5147357A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-03-21 | 1997-09-20 | 1998-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-03-21 | 2001-09-20 | 2002-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-03-21 | 2005-09-20 | 2006-03-22 | $7700.00 | Window Closed / Lapsed |