US6679851B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tissue accessing and anchoring device and method
Assignee: SenoRx Inc
•
Filing: 2001-06-12
•
Granted: 2004-01-20
•
Expires: 2021-06-12
Abstract
Abstract The invention provides systems, methods and a node accessing and anchoring device, comprising an elongated shaft, a tissue cutting member, at least one anchoring element extending from a position at or near the distal end of the shaft; and a radiation detector. The radiation detector is effective to locate and identify sentinel lymph nodes following injection of radioactive material into a primary lesion site within a patient. The tissue cutting member, which may be activated with radio frequency energy, is effective to allow access of the elongated shaft to a sentinel lymph node. The anchoring elements are effective to anchor the device to or adjacent a sentinel lymph node accessed by the device. Anchoring elements may assume radially, longitudinally, or mixed radially and longitudinally curved or coiled configurations when deployed.
Inventors
- 👤 Fred H. Burbank
- 👤 Paul Lubock
- 👤 John Wardle
- 👤 Frank Louw
- 👤 Richard L. Quick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:53
CPC Classifications
A; A61; A61B; A61B10/00; A61B10/02; A61B10/0233; A61B10/0266; A61B17/00; A61B17/00491; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B18/1477; A61B18/148; A61B18/1482; A61B90/00; A61B90/39; A61B18/1487; A61B18/18; A61B18/1815; A61B2010/0208; A61B2017/00017; A61B2017/00115; A61B2017/00831; A61B2017/00867; A61B17/34; A61B2017/348; A61B2017/3482; A61B2017/3484; A61B2017/3488; A61B2018/00053; A61B2018/00184; A61B2018/00202; A61B2018/00208; A61B2018/00273; A61B2018/00315; A61B2018/00333; A61B2018/00571; A61B2018/00577; A61B2018/00601; A61B2018/0091; A61B2018/00916; A61B2018/00958; A61B2018/1405; A61B2018/1407; A61B2018/1425; A61B2018/1475; A61B90/36; A61B90/37; A61B2090/378; A61B2090/3904; A61B2090/3908; A61B2090/392; A61B6/00; A61B6/42; A61B6/4208; A61B6/4258
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
159 words
A tissue accessing and anchoring device, comprising: a. an elongated shaft having a distal end and a proximal end; b. a tissue cutting member at the distal end of the shaft to provide access to a target site; c. at least one movable sheath having a distal end at or near the distal end of the shaft, a port in the distal end of the sheath and an inner bore leading to and in fluid communication with the port in the distal end; and d. at least one anchoring element which is slidably disposed within the inner bore of the sheath and positioned at or near the distal end of the shaft, which is configured to move within said inner bore, to extend out of the port in the distal end of the movable sheath, beyond the distal end of the shaft and which is configured to extend into tissue at the target site to thereby anchor the device.
Claim 2
Dependent Claim
159 words
A tissue accessing and anchoring device, comprising: a. an elongated shaft having a distal end and a proximal end; b. a tissue cutting member at the distal end of the shaft to provide access to a target site; c. at least one movable sheath having a distal end at or near the distal end of the shaft, a port in the distal end of the sheath and an inner bore leading to and in fluid communication with the port in the distal end; and d. at least one anchoring element which is slidably disposed within the inner bore of the sheath and positioned at or near the distal end of the shaft, which is configured to move within said inner bore, to extend out of the port in the distal end of the movable sheath, beyond the distal end of the shaft and which is configured to extend into tissue at the target site to thereby anchor the device.
Claim 3
Dependent Claim
30 words
The accessing and anchoring device of claim 1 wherein the extended anchoring element forms a curved structure as it extends out the port in the distal end of the sheath.
Claim 4
Dependent Claim
16 words
The accessing and anchoring device of claim 2 wherein the curved structure comprises a helical coil.
Claim 5
Dependent Claim
21 words
The accessing and anchoring device of claim 2 wherein the curved structure of the anchoring element extends through at least 180°.
Claim 6
Dependent Claim
21 words
The accessing and anchoring device of claim 2 wherein the curved structure of the anchoring element extends through at least 360°.
Claim 7
Dependent Claim
21 words
The accessing and anchoring device of claim 2 wherein the curved structure of the anchoring element extends through at least 540°.
Claim 8
Dependent Claim
17 words
The accessing and anchoring device of claim 1 wherein the anchoring element extends radially from the shaft.
Claim 9
Dependent Claim
16 words
The accessing and anchoring device of claim 7 wherein the anchoring element comprises a helical coil.
Claim 10
Dependent Claim
14 words
The accessing and anchoring device of claim 1 wherein the anchoring element extends longitudinally.
Claim 11
Dependent Claim
16 words
The accessing and anchoring device of claim 9 wherein the anchoring element comprises a helical coil.
Claim 12
Dependent Claim
29 words
The accessing and anchoring device of claim 1 wherein the elongated shaft has an inner lumen extending to a location at or near the distal end of the shaft.
Claim 13
Dependent Claim
30 words
The accessing device of claim 11 wherein a radiation detector is provided on a distal extremity of an elongated member slidably disposed within the inner lumen of the elongated shaft.
Claim 14
Dependent Claim
23 words
The accessing and anchoring device of claim 1 wherein the tissue cutting member on the distal end of the shaft is an electrode.
Claim 15
Dependent Claim
16 words
The accessing and anchoring device of claim 13 wherein the electrode has an electrically active surface.
Claim 16
Dependent Claim
17 words
The accessing and anchoring device of claim 14 wherein the electrically active surface has a sharp edge.
Claim 17
Dependent Claim
24 words
The accessing and anchoring device of claim 13 wherein the tissue cutting electrode is configured to be electrically connected to an RF energy source.
Claim 18
Dependent Claim
26 words
The accessing and anchoring device of claim 13 wherein an electrosurgical cutting edge of the cutting member is spaced from the distal end of the shaft.
Claim 19
Dependent Claim
17 words
The accessing and anchoring device of claim 13 wherein an electrosurgical cutting edge has an arcuate shape.
Claim 20
Dependent Claim
17 words
The accessing and anchoring device of claim 1 , having at least two radially extending anchoring elements.
Claim 21
Dependent Claim
17 words
The accessing and anchoring device of claim 1 , having at least three radially extending anchoring elements.
Claim 22
Dependent Claim
22 words
The accessing and anchoring device of claim 19 wherein the radially extending anchoring elements extend along a substantial length of the shaft.
Claim 23
Dependent Claim
28 words
The accessing and anchoring device of claim 21 wherein the substantial length of the elongate shaft through which the anchoring elements extend has an oblong transverse cross section.
Claim 24
Dependent Claim
175 words
A tissue accessing and anchoring device, comprising: a. an elongated shaft having a distal end, a proximal end and at least a distal portion having an oblong transverse cross section along the length thereof; b. a tissue cuffing member at or beyond the distal end of the shaft to provide access to a target site; c. a plurality of movable sheaths each having a distal end at or near the distal end of the shaft, a port in the distal end of the sheath and an inner bore leading to and in fluid communication with the port in the distal end; and d. a plurality of elongated anchoring elements, each of which is configured to move within the inner bore of a sheath, to extend from the port in the distal end of the movable sheath along the portion of the elongated shaft having an oblong transverse cross section, to extend beyond the distal end of the shaft and which is configured to extend into tissue at the target site to thereby anchor the device.
Claim 25
Dependent Claim
175 words
A tissue accessing and anchoring device, comprising: a. an elongated shaft having a distal end, a proximal end and at least a distal portion having an oblong transverse cross section along the length thereof; b. a tissue cuffing member at or beyond the distal end of the shaft to provide access to a target site; c. a plurality of movable sheaths each having a distal end at or near the distal end of the shaft, a port in the distal end of the sheath and an inner bore leading to and in fluid communication with the port in the distal end; and d. a plurality of elongated anchoring elements, each of which is configured to move within the inner bore of a sheath, to extend from the port in the distal end of the movable sheath along the portion of the elongated shaft having an oblong transverse cross section, to extend beyond the distal end of the shaft and which is configured to extend into tissue at the target site to thereby anchor the device.
Claim 26
Dependent Claim
43 words
The tissue accessing and anchoring device of claim 23 wherein the plurality of elongated anchoring elements extending along said length of the shaft having an oblong transverse cross section are parallel and extend along a long dimension of the oblong transverse cross section.
Claim 27
Dependent Claim
133 words
A node accessing and anchoring device comprising: an elongated shaft having a longitudinal axis, a distal end and a proximal end; a tissue cutting member at the distal end of the shaft; a movable sheath having an inner bore; at least one radially extending anchoring element which is configured to extend into tissue at a target site and which is disposed within said inner bore of said movable sheath at or near the distal end of the shaft, the at least one radially extending anchoring element having a retracted configuration and a deployed configuration extending from the distal end of the shaft; and a deployment actuator disposed proximal of the distal end of the elongate shaft and configured to deploy the radially extending anchoring element from a retracted configuration to an extended configuration.
Claim 28
Dependent Claim
133 words
A node accessing and anchoring device comprising: an elongated shaft having a longitudinal axis, a distal end and a proximal end; a tissue cutting member at the distal end of the shaft; a movable sheath having an inner bore; at least one radially extending anchoring element which is configured to extend into tissue at a target site and which is disposed within said inner bore of said movable sheath at or near the distal end of the shaft, the at least one radially extending anchoring element having a retracted configuration and a deployed configuration extending from the distal end of the shaft; and a deployment actuator disposed proximal of the distal end of the elongate shaft and configured to deploy the radially extending anchoring element from a retracted configuration to an extended configuration.
Claim 29
Dependent Claim
22 words
The node accessing and anchoring device of claim 25 , wherein the anchoring element forms a curved structure as it extends radially.
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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) | 2007-01-19 | 2007-07-21 | 2008-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-01-19 | 2011-07-21 | 2012-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-01-19 | 2015-07-21 | 2016-01-20 | $7700.00 | Window Closed / Lapsed |