US6162214A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corning device for myocardial revascularization
Assignee: Eclipse Surgical Technologies Inc
•
Filing: 1998-10-30
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Granted: 2000-12-19
•
Expires: 2018-10-30
Abstract
Abstract Apparatus and method for creating pathways in tissue and destroying the cored tissue to avoid release of the cored tissue within the body. The apparatus has a coring mechanism and a tissue vaporization mechanism. The apparatus is useful in creating revascularization pathways in the myocardium. The apparatus and methods are adaptable for either surgical or percutaneous procedures.
Inventors
- 👤 Richard L. Mueller
- 👤 Alexander Khairkhahan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:45
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/18; A61B18/20; A61B18/22; A61B18/24; A61B17/00; A61B17/00234; A61B2017/00238; A61B2017/00243; A61B2017/00247; A61B2018/00315; A61B2018/00345; A61B2018/00351; A61B2018/00392; A61B2018/00571; A61B2018/00625; A61B2218/00; A61B2218/001; A61B2218/007; A61B2218/008
Claims Analysis
Total Claims: 62
Claim 1
Independent Claim
92 words
An apparatus for cutting a pathway in tissue comprising: a housing, a catheter coupled to the housing, the catheter including a lumen and proximal and distal portions, an end effector at the distal portion of the catheter for cutting a pathway in the tissue, a tissue vaporization device in combination with the distal portion of the catheter so that the tissue severed by the end effector and held within the distal end of the catheter is vaporized by the tissue vaporization device in the distal end of the catheter in the body.
Claim 2
Independent Claim
92 words
An apparatus for cutting a pathway in tissue comprising: a housing, a catheter coupled to the housing, the catheter including a lumen and proximal and distal portions, an end effector at the distal portion of the catheter for cutting a pathway in the tissue, a tissue vaporization device in combination with the distal portion of the catheter so that the tissue severed by the end effector and held within the distal end of the catheter is vaporized by the tissue vaporization device in the distal end of the catheter in the body.
Claim 3
Dependent Claim
29 words
The apparatus of claim 1 further including a therapeutic agent delivery device in combination with the tissue vaporization device for delivering one or more therapeutic agents to the pathway.
Claim 4
Dependent Claim
28 words
The apparatus of claim 1 further including a therapeutic agent delivery device within the lumen of the catheter for delivering one or more therapeutic agents to the pathway.
Claim 5
Dependent Claim
37 words
The apparatus of claim 1 further including a shaft having a lumen and proximal and distal portions, the shaft housing the catheter, the catheter translatable in the shaft and extendable out the distal portion of the shaft.
Claim 6
Dependent Claim
26 words
The apparatus of claim 4 further including at the distal portion of the shaft a device for stabilizing the end effector in contact with the tissue.
Claim 7
Dependent Claim
24 words
The apparatus of claim 4 further including a sensing device at the distal portion of the shaft for determining the depth of the tissue.
Claim 8
Dependent Claim
20 words
The apparatus of claim 1 further including a rotation mechanism coupled to the housing and causing rotation of the catheter.
Claim 9
Dependent Claim
15 words
The apparatus of claim 1 wherein the effector end is removably mounted to the housing.
Claim 10
Dependent Claim
22 words
The apparatus of claim 1 further including a depth stop mechanism coupled to the housing for controlling advancement of the effector end.
Claim 11
Dependent Claim
27 words
The apparatus of claim 1 further including an element for heating the effector end coupled to the distal portion of the catheter and to an energy source.
Claim 12
Dependent Claim
23 words
The apparatus of claim 1 wherein the tissue vaporization device comprises a laser energy delivery device translatable within the lumen of the catheter.
Claim 13
Dependent Claim
30 words
The apparatus of claim 1 wherein the tissue vaporization device comprises a laser energy delivery device mounted within the lumen of the catheter and coupled to a laser energy source.
Claim 14
Dependent Claim
26 words
The apparatus of claim 1 further including a gas removal mechanism in communication with the lumen of the catheter for withdrawing generated gases created during vaporization.
Claim 15
Dependent Claim
43 words
A tissue removal apparatus for use in a body comprising: a coring mechanism having a lumen for excised tissue, and a tissue vaporization mechanism housed within the lumen of the coring mechanism for destroying excised tissue within the coring mechanism in the body.
Claim 16
Dependent Claim
43 words
A tissue removal apparatus for use in a body comprising: a coring mechanism having a lumen for excised tissue, and a tissue vaporization mechanism housed within the lumen of the coring mechanism for destroying excised tissue within the coring mechanism in the body.
Claim 17
Dependent Claim
19 words
The apparatus of claim 14 wherein the tissue vaporization mechanism is translatable within the lumen of the coring mechanism.
Claim 18
Dependent Claim
27 words
The apparatus of claim 14 wherein the coring mechanism comprises a catheter having proximal and distal ends, the distal end of the catheter comprising a cutting portion.
Claim 19
Dependent Claim
27 words
The apparatus of claim 14 wherein the coring mechanism comprises a hypotube having proximal and distal ends, the distal end of the hypotube comprising a cutting portion.
Claim 20
Dependent Claim
12 words
The apparatus of claim 16 wherein the cutting portion is substantially rigid.
Claim 21
Dependent Claim
11 words
The apparatus of claim 16 wherein the cutting portion is rigid.
Claim 22
Dependent Claim
18 words
The apparatus of claim 16 wherein the cutting portion comprises a cutting edge having proximal and distal ends.
Claim 23
Dependent Claim
18 words
The apparatus of claim 20 wherein the cutting portion further includes a step edge to retain excised tissue.
Claim 24
Dependent Claim
25 words
The apparatus of claim 16 comprising a flexibility imparting device at the distal end of the catheter adjacent the proximal end of the cutting portion.
Claim 25
Dependent Claim
13 words
The apparatus of claim 21 wherein the flexibility imparting device is a spring.
Claim 26
Dependent Claim
23 words
The apparatus of claim 16 wherein the cutting portion further comprises an external textured surface to create a pathway with a jagged surface.
Claim 27
Dependent Claim
12 words
The apparatus of claim 23 wherein the external textured surface is serrated.
Claim 28
Dependent Claim
14 words
The apparatus of claim 16 wherein the proximal end of the catheter is flexible.
Claim 29
Dependent Claim
15 words
The apparatus of claim 16 wherein the proximal end of the catheter is substantially flexible.
Claim 30
Dependent Claim
15 words
The apparatus of claim 16 wherein at least a portion of the catheter is flexible.
Claim 31
Dependent Claim
10 words
The apparatus of claim 16 wherein the catheter is torquable.
Claim 32
Dependent Claim
19 words
The apparatus of claim 16 wherein the catheter further comprises a torquable insert element in combination with the catheter.
Claim 33
Dependent Claim
17 words
The apparatus of claim 30 wherein the torquable insert is embedded in the wall of the catheter.
Claim 34
Dependent Claim
12 words
The apparatus of claim 30 wherein the torquable insert comprises a spring.
Claim 35
Dependent Claim
13 words
The apparatus of claim 30 wherein the torquable insert comprises wire mesh tubing.
Claim 36
Dependent Claim
21 words
The apparatus of claim 14 wherein the tissue vaporization mechanism comprises a laser energy delivery device having proximal and distal ends.
Claim 37
Dependent Claim
20 words
The apparatus of claim 34 wherein the laser energy the laser energy delivery device is one or more optical fibers.
Claim 38
Dependent Claim
21 words
The apparatus of claim 35 further including a therapeutic agent delivery device at the distal portion of the laser delivery device.
Claim 39
Dependent Claim
18 words
The apparatus of claim 16 further including a hand piece coupled to the proximal end of the catheter.
Claim 40
Dependent Claim
24 words
The apparatus of claim 16 further including a motor mechanism operatively coupled to the catheter, for motion of the distal end of the catheter.
Claim 41
Dependent Claim
22 words
The apparatus of claim 38 further including a depth stop mechanism coupled to the hand piece for controlling advancement of the catheter.
Claim 42
Dependent Claim
24 words
The apparatus of claim 16 further including a sensing device at the distal end of the catheter for determining the depth of the tissue.
Claim 43
Dependent Claim
26 words
The apparatus of claim 16 further including a shaft with a lumen having distal and proximal ends, the catheter translatable within the lumen of the shaft.
Claim 44
Dependent Claim
27 words
The apparatus of claim 41 further including a stabilization device at the distal end of the shaft for stabilizing the coring mechanism in contact with the tissue.
Claim 45
Dependent Claim
15 words
The apparatus of claim 42 wherein the stabilization device is one or more suction conduits.
Claim 46
Independent Claim
63 words
A method for excising tissue in a body comprising: a) providing an apparatus comprising: a mechanical tissue excision mechanism housing a tissue vaporization mechanism; b) placing the distal portion of the apparatus on a tissue surface; c) creating a pathway in the tissue and capturing excised tissue within the distal portion of the apparatus; and d) vaporizing the excised tissue within the apparatus.
Claim 47
Independent Claim
63 words
A method for excising tissue in a body comprising: a) providing an apparatus comprising: a mechanical tissue excision mechanism housing a tissue vaporization mechanism; b) placing the distal portion of the apparatus on a tissue surface; c) creating a pathway in the tissue and capturing excised tissue within the distal portion of the apparatus; and d) vaporizing the excised tissue within the apparatus.
Claim 48
Dependent Claim
20 words
The method of claim 44 wherein step c) further includes delivery of at least one therapeutic agent to the pathway.
Claim 49
Dependent Claim
18 words
The method of claim 44 subsequent to step c) delivering at least one therapeutic agent to the pathway.
Claim 50
Dependent Claim
17 words
The method of claim 44 subsequent step d) delivering at least one therapeutic agent to the pathway.
Claim 51
Dependent Claim
15 words
The method of claim 44 wherein the tissue surface in step b) is the epicardium.
Claim 52
Dependent Claim
15 words
The method of claim 44 wherein the tissue surface in step b) is the endocardium.
Claim 53
Dependent Claim
17 words
The method of claim 44 wherein step c) further includes causing thermal injury to a remaining tissue.
Claim 54
Dependent Claim
21 words
The method of claim 44 wherein step c) includes advancement and rotation of the mechanical tissue excision mechanism in the tissue.
Claim 55
Dependent Claim
20 words
The method of claim 44 wherein step d) includes firing the tissue vaporization mechanism within the mechanical tissue excision mechanism.
Claim 56
Dependent Claim
31 words
The method of claim 44 the apparatus further including a gas removal mechanism in combination with the tissue vaporization mechanism and step e) comprising removing gases from the tissue vaporization mechanism.
Claim 57
Independent Claim
49 words
A method for enhancing trauma while creating a myocardial pathway comprising a) providing a mechanical tissue coring device having a textured external distal surface, b) advancing the tissue coring device into myocardial tissue c) removing a cored tissue sample while providing an increased trauma surface area within the pathway.
Claim 58
Independent Claim
49 words
A method for enhancing trauma while creating a myocardial pathway comprising a) providing a mechanical tissue coring device having a textured external distal surface, b) advancing the tissue coring device into myocardial tissue c) removing a cored tissue sample while providing an increased trauma surface area within the pathway.
Claim 59
Independent Claim
55 words
A method for creating a revascularization pathway in a body tissue comprising: a) providing an apparatus comprising: a mechanical tissue coring mechanism housing a tissue vaporization mechanism; b) placing the distal portion of the apparatus on a tissue surface; c) coring a pathway in the tissue; and d) vaporizing the cored tissue within the apparatus.
Claim 60
Independent Claim
55 words
A method for creating a revascularization pathway in a body tissue comprising: a) providing an apparatus comprising: a mechanical tissue coring mechanism housing a tissue vaporization mechanism; b) placing the distal portion of the apparatus on a tissue surface; c) coring a pathway in the tissue; and d) vaporizing the cored tissue within the apparatus.
Claim 61
Dependent Claim
16 words
The apparatus of claim 1 wherein the tissue vaporization device comprises a radio frequency ablation device.
Claim 62
Dependent Claim
16 words
The apparatus of claim 14 wherein the tissue vaporization device comprises a radio frequency ablation device.
References Cited (Backward Citations)
US3913566A
Cited
US4461305A
Cited
US4576162A
Cited
US4658817A
Cited
US4850354A
Cited
US5984939A
Cited
US5380316A
Cited
US5554152A
Cited
US5263959A
Cited
US5358472A
Cited
US5658272A
Cited
US5632755A
Cited
US5342358A
Cited
US5403311A
Cited
US5496307A
Cited
US5366468A
Cited
US5477862A
Cited
US5794626A
Cited
US5591159A
Cited
US5873886A
Cited
WO1996035469A1
Cited
US5728091A
Cited
US5702412A
Cited
US5807277A
Cited
US5782823A
Cited
US5738680A
Cited
EP0807417A2
Cited
US5766164A
Cited
US5871495A
Cited
US5976164A
Cited
US5741287A
Cited
WO1998019614A1
Cited
US5899915A
Cited
WO1998024373A1
Cited
WO1998025533A1
Cited
US5913853A
Cited
WO1998039038A1
Cited
US5876373A
Cited
US5964757A
Cited
WO1999020187A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-12-19 | 2004-06-19 | 2004-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-12-19 | 2008-06-19 | 2008-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-12-19 | 2012-06-19 | 2012-12-19 | $7700.00 | Window Closed / Lapsed |