US6638235B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Biopsy apparatus
Assignee: Suros Surgical Systems Inc
•
Filing: 2001-05-23
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Granted: 2003-10-28
•
Expires: 2021-05-23
Abstract
Abstract A disposable tissue removal device comprises a "tube within a tube" cutting element mounted to a handpiece. The inner cannula of the cutting element defines an inner lumen and terminates in an inwardly beveled, razor-sharp cutting edge. The inner cannula is driven by both a rotary motor and a reciprocating motor. At the end of its stroke, the inner cannula makes contact with the cutting board to completely sever the tissue. An aspiration vacuum is applied to the inner lumen to aspirate excised tissue through the inner cannula and into a collection trap that is removably mounted to the handpiece. The rotary and reciprocating motors are hydraulically powered through a foot pedal operated hydraulic circuit. The entire biopsy device is configured to be disposable. In one embodiment, the cutting element includes a cannula hub that can be connected to a fluid source, such as a valve-controlled saline bag.
Inventors
- 👤 Michael E. Miller
- 👤 Joseph L. Mark
- 👤 John P. Hancock
- 👤 Charles Butcher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:45
CPC Classifications
A; A61; A61B; A61B10/00; A61B10/02; A61B10/0233; A61B10/025; A61B10/0283; A61B17/00; A61B17/34; A61B17/3498; A61B2010/0208; A61B2017/00973; A61B2217/00; A61B2217/002; A61B2217/005; A61B2217/007
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
146 words
A tissue cutting device comprising: an elongated handpiece defining an elongated channel on an outer surface of said handpiece; a cannula hub mounted to said handpiece and having a fluid port; a tube connected at one end to said fluid port and having an opposite end connectable to a fluid source, said tube disposed within said elongated channel and sized to be recessed within said channel relative to said outer surface; an outer cannula supported at a proximal end by said cannula hub and defining a tissue-receiving opening adjacent a distal end thereof, and a lumen between said proximal and distal ends in fluid communication with said fluid port of said cannula hub; and an inner cutting member slidably disposed within said lumen of said outer cannula and defining a cutting edge at a distal end thereof operable to sever tissue projecting through said tissue-receiving opening.
Claim 2
Dependent Claim
146 words
A tissue cutting device comprising: an elongated handpiece defining an elongated channel on an outer surface of said handpiece; a cannula hub mounted to said handpiece and having a fluid port; a tube connected at one end to said fluid port and having an opposite end connectable to a fluid source, said tube disposed within said elongated channel and sized to be recessed within said channel relative to said outer surface; an outer cannula supported at a proximal end by said cannula hub and defining a tissue-receiving opening adjacent a distal end thereof, and a lumen between said proximal and distal ends in fluid communication with said fluid port of said cannula hub; and an inner cutting member slidably disposed within said lumen of said outer cannula and defining a cutting edge at a distal end thereof operable to sever tissue projecting through said tissue-receiving opening.
Claim 3
Dependent Claim
57 words
The tissue cutting device of claim 1 , further comprising a fluid source connected to said opposite end of said tube, said fluid source including: a container holding a supply of a fluid; and a valve between said container and said fluid port and operable to control the flow of fluid from said container through said tube.
Claim 4
Dependent Claim
19 words
The issue cutting device of claim 2 , wherein said valve is a pinch valve engaged about said tube.
Claim 5
Dependent Claim
43 words
The tissue cutting device of claim 2 , wherein said valve is opened when said inner cutting member begins to retract from said tissue-receiving opening and is closed before said inner cutting member advances forward to sever tissue projecting through said tissue-receiving opening.
Claim 6
Dependent Claim
18 words
The tissue cutting device of claim 1 , wherein said cannula hub is detachably mounted to said handpiece.
Claim 7
Dependent Claim
26 words
The tissue cutting device of claim 1 , wherein said cannula hub and said outer cannula are detachable from said handpiece and said inner cutting member.
Claim 8
Dependent Claim
29 words
The tissue cutting device of claim 1 , wherein said handpiece includes a Luer fitting at a distal end thereof that is configured to mate with said cannula hub.
Claim 9
Dependent Claim
145 words
A tissue cutting device comprising: an elongated handpiece; a cannula hub detachably mounted to said handpiece and having a fluid port; a tube connected at one end to said fluid port and having an opposite end connectable to a fluid source; an outer cannula supported at a proximal end by said cannula hub and defining a tissue-receiving opening adjacent a distal end thereof, and a lumen between said proximal and distal ends in fluid communication with said fluid port of said cannula hub; and an inner cutting member moveably attached to said handpiece and slidably disposed within said lumen of said outer cannula, said inner cutting member defining a cutting edge at a distal end thereof operable to sever tissue projecting through said tissue-receiving opening, and wherein said inner cutting member is attached to said handpiece when said cannula hub is detached from said handpiece.
Claim 10
Dependent Claim
145 words
A tissue cutting device comprising: an elongated handpiece; a cannula hub detachably mounted to said handpiece and having a fluid port; a tube connected at one end to said fluid port and having an opposite end connectable to a fluid source; an outer cannula supported at a proximal end by said cannula hub and defining a tissue-receiving opening adjacent a distal end thereof, and a lumen between said proximal and distal ends in fluid communication with said fluid port of said cannula hub; and an inner cutting member moveably attached to said handpiece and slidably disposed within said lumen of said outer cannula, said inner cutting member defining a cutting edge at a distal end thereof operable to sever tissue projecting through said tissue-receiving opening, and wherein said inner cutting member is attached to said handpiece when said cannula hub is detached from said handpiece.
Claim 11
Dependent Claim
136 words
A tissue cutting device comprising: an elongated handpiece; a cannula hub mounted to said handpiece and having a fluid port; a tube connected at one end to said fluid port and having an opposite end connectable to a fluid source; an outer cannula supported at a proximal end by said cannula hub and defining a tissue-receiving opening adjacent a distal end thereof, and a lumen between said proximal and distal ends in fluid communication with said fluid port of said cannula hub, said lumen including a cutting board therein proximate a distal tip of said outer cannula; and an inner cutting member slidably disposed within said lumen of said outer cannula and defining a cutting edge at a distal end thereof that is engagable with said cutting board to sever tissue projecting through said tissue-receiving opening.
Claim 12
Dependent Claim
136 words
A tissue cutting device comprising: an elongated handpiece; a cannula hub mounted to said handpiece and having a fluid port; a tube connected at one end to said fluid port and having an opposite end connectable to a fluid source; an outer cannula supported at a proximal end by said cannula hub and defining a tissue-receiving opening adjacent a distal end thereof, and a lumen between said proximal and distal ends in fluid communication with said fluid port of said cannula hub, said lumen including a cutting board therein proximate a distal tip of said outer cannula; and an inner cutting member slidably disposed within said lumen of said outer cannula and defining a cutting edge at a distal end thereof that is engagable with said cutting board to sever tissue projecting through said tissue-receiving opening.
Claim 13
Dependent Claim
50 words
The tissue cutting device of claim 9 , wherein said cutting board is made from a material having a hardness less than a hardness of said inner cutting member at said cutting edge, but sufficient to substantially prevent deformation of said cutting board under pressure from said cutting edge engagement.
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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) | 2006-10-27 | 2007-04-28 | 2007-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-10-27 | 2011-04-28 | 2011-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-10-27 | 2015-04-28 | 2015-10-28 | $7700.00 | Window Closed / Lapsed |