US5855577A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bow shaped catheter
Assignee: Eclipse Surgical Technologies Inc
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Filing: 1997-02-07
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Granted: 1999-01-05
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Expires: 2017-02-07
Abstract
Abstract A bow shaped, integrated wire catheter apparatus and method of use for access to, and laser or other treatment within, cavities and organs in the human body, the apparatus having a curvilinear shape but flexible enough to assume a generally elongated shape such that the apparatus can be extended through the vasculature in the generally elongated shape and can assume the curvilinear shape when extended into a body cavity or organ, the curvilinear shape serving to securely position the apparatus adjacent a selected surface within the body cavity or organ for laser or other treatment with a laser delivery device or other functional device thereon, the apparatus having a central axis, the apparatus comprising a main catheter shaft having a proximal end and an apex seeking and stabilizing distal end, the main catheter shaft having material of construction or other mechanism or means for causing a portion of the catheter shaft to have a bowed shape adjacent its distal end, the main catheter shaft having at least one hollow lumen extending axially and at least partially therethrough such that a bow shaped portion defines and distinguishes an outer arcuate sidewall for placement in contact with the selected area or areas for laser or other treatment thereon, and an inner arcuate sidewall, at least the outer arcuate sidewall having one or more guide holes disposed thereon for selectively providing laser or other treatment on the selected surface by controllably advancing a laser delivery device or other functional device selectively through the one or more guide holes to the selected surface. The catheter apparatus can be made at least partially of superelastic and/or shape memory materials of construction.
Inventors
- 👤 Douglas R. Murphy-Chutorian
- 👤 Jeffrey Giba
- 👤 Michael Horzewski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:16
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; A61B2018/2205; A61B2018/2211; A61B90/00; A61B90/39
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
196 words
A catheter device for an interventional procedure within a body cavity by passage through vasculature, the device comprising: a) a flexible shaft having a proximal end, a distal end and at least a first and second axially extending there through; b) an interventional procedural device for performing an interventional procedure to a selected surface within the body cavity, having proximal and distal ends, and housed in and advanceable through the first lumen in the flexible shaft; c) a flexible wire disposed within the second lumen of the flexible shaft, the flexible wire causing the distal end of the flexible shaft to change from a substantially elongated shape during passage within the vasculature into a bow shaped portion within the body cavity; and d) a plurality of guide holes disposed on at least the bowed shaped portion of the flexible shaft and in communication with the first lumen of the flexible shaft, wherein the interventional procedural device selectively extends through any of the guide holes, whereby the bow shaped portion of the flexible shaft facilitates positioning of the catheter device for creation of an interventional treatment pattern and stability of the catheter device within the body cavity.
Claim 2
Dependent Claim
196 words
A catheter device for an interventional procedure within a body cavity by passage through vasculature, the device comprising: a) a flexible shaft having a proximal end, a distal end and at least a first and second axially extending there through; b) an interventional procedural device for performing an interventional procedure to a selected surface within the body cavity, having proximal and distal ends, and housed in and advanceable through the first lumen in the flexible shaft; c) a flexible wire disposed within the second lumen of the flexible shaft, the flexible wire causing the distal end of the flexible shaft to change from a substantially elongated shape during passage within the vasculature into a bow shaped portion within the body cavity; and d) a plurality of guide holes disposed on at least the bowed shaped portion of the flexible shaft and in communication with the first lumen of the flexible shaft, wherein the interventional procedural device selectively extends through any of the guide holes, whereby the bow shaped portion of the flexible shaft facilitates positioning of the catheter device for creation of an interventional treatment pattern and stability of the catheter device within the body cavity.
Claim 3
Dependent Claim
16 words
The device of claim 1 wherein the interventional procedural device is a laser energy delivery device.
Claim 4
Dependent Claim
25 words
The device of claim 2 further comprising a handle member including a device for controllably advancing a distal end of the laser energy delivery device.
Claim 5
Dependent Claim
25 words
The device of claim 2 wherein the laser energy delivery device includes a depth stop member for limiting displacement of the laser energy delivery device.
Claim 6
Dependent Claim
24 words
The device of claim 2 wherein the laser energy delivery device includes a fluid seal member for preventing fluid flow through the first lumen.
Claim 7
Dependent Claim
17 words
The device of claim 2 wherein the laser energy delivery device comprises at least one optical fiber.
Claim 8
Dependent Claim
38 words
The device of claim 2 wherein the distal end of the laser energy delivery device includes a focusing device whereby the laser delivery device emits laser energy and the focusing device is for diverging the laser energy emitted.
Claim 9
Dependent Claim
34 words
The device of claim 2 wherein the laser delivery device has a distal end with curvature, whereby the curvature assists advancement of the laser energy delivery device through any one of the guide holes.
Claim 10
Dependent Claim
26 words
The device of claim 1 wherein the wire has a non-circular cross-sectional shape keyed to the cross-sectional shape of the second lumen thereby preventing wire rotation.
Claim 11
Dependent Claim
29 words
The device of claim 1 wherein the wire is at least partially comprised of a material selected from the group consisting of superelastic, shape memory alloy and stainless steel.
Claim 12
Dependent Claim
21 words
The device of claim 1 wherein the wire is rigidly fixed in place in the second lumen of the flexible shaft.
Claim 13
Dependent Claim
19 words
The device of claim 1 wherein the wire is slidably disposed within the second lumen of the flexible shaft.
Claim 14
Dependent Claim
24 words
The device of claim 1 wherein the wire is comprised of material selected from the group consisting of superelastic and shape memory alloy material.
Claim 15
Dependent Claim
24 words
The device of claim 1 wherein the interventional procedural device includes a device for controllably advancing a distal end of the interventional procedural device.
Claim 16
Dependent Claim
15 words
The device of claim 1 wherein the interventional procedural device comprises a visualizing enhancement device.
Claim 17
Independent Claim
236 words
A method for performing an interventional procedure in a body cavity, the method comprising: a) providing a catheter device having proximal and distal ends comprising a flexible shaft portion at the distal end, the flexible shaft portion having a proximal end, a distal end and at least a first and second axially extending there through, an interventional procedural device for performing an interventional procedure housed in and advanceable through the first lumen in the flexible shaft, a flexible wire disposed within the second lumen of the flexible shaft, the flexible wire causing the distal end of the flexible shaft to change from a substantially elongated shape during passage within the vasculature into a bow shaped portion within the body cavity, and a plurality of guide holes disposed on at least the bowed shaped portion of the flexible shaft and in communication with the first lumen of the flexible shaft; b) advancing the distal end of the flexible shaft through the vasculature in a generally elongated shaped form into the body cavity; c) causing the distal end of the flexible shaft to change into a bow shape and positioning the bow shaped portion of the flexible shaft adjacent a selected surface within the body cavity; d) extending the interventional procedural device through one of the guide holes disposed in the bow shaped portion of the flexible shaft; and e) treating a selected surface within the body cavity.
Claim 18
Independent Claim
236 words
A method for performing an interventional procedure in a body cavity, the method comprising: a) providing a catheter device having proximal and distal ends comprising a flexible shaft portion at the distal end, the flexible shaft portion having a proximal end, a distal end and at least a first and second axially extending there through, an interventional procedural device for performing an interventional procedure housed in and advanceable through the first lumen in the flexible shaft, a flexible wire disposed within the second lumen of the flexible shaft, the flexible wire causing the distal end of the flexible shaft to change from a substantially elongated shape during passage within the vasculature into a bow shaped portion within the body cavity, and a plurality of guide holes disposed on at least the bowed shaped portion of the flexible shaft and in communication with the first lumen of the flexible shaft; b) advancing the distal end of the flexible shaft through the vasculature in a generally elongated shaped form into the body cavity; c) causing the distal end of the flexible shaft to change into a bow shape and positioning the bow shaped portion of the flexible shaft adjacent a selected surface within the body cavity; d) extending the interventional procedural device through one of the guide holes disposed in the bow shaped portion of the flexible shaft; and e) treating a selected surface within the body cavity.
Claim 19
Dependent Claim
20 words
The method of claim 16 further including the step of: f) creating an interventional treatment pattern within the body cavity.
Claim 20
Dependent Claim
32 words
The method of claim 16 wherein step b) further includes deploying a guide catheter through the vasculature and advancing the flexible shaft through the guide catheter for positioning in the body cavity.
Claim 21
Dependent Claim
72 words
The method of claim 16 further including the steps of: f) retracting the distal end of the interventional procedural device through the guide hole into the distal end of the flexible shaft; g) repositioning the distal end of the interventional procedural device adjacent a second guide hole; h) extending the distal end of the interventional procedural device through the second guide hole; and i) treating the selected surface within the body cavity.
Claim 22
Dependent Claim
82 words
The method of claim 16 further including the steps of: f) retracting the distal end of the interventional procedural device through the guide hole into the distal end of the flexible shaft; g) rotating the bow shaped portion of the flexible shaft within the body cavity to position the device adjacent an additional selected surface within the body cavity; h) re-extending the interventional procedural device through one of the guide holes; and i) treating the additional selected surface within the body cavity.
Claim 23
Dependent Claim
20 words
The method of claim 16 wherein the selected surface within the body cavity is an endocardial surface in a heart.
Claim 24
Dependent Claim
12 words
The method of claim 16 wherein the interventional procedure is myocardial revascularization.
Claim 25
Dependent Claim
58 words
The method of claim 16 wherein the interventional procedure is myocardial revascularization, the interventional procedural device is a laser delivery device and the selected surface is an endocardial surface within a heart and step e) includes treating from the endocardial surface by delivering channel forming energy from the laser delivery device thereby creating a revascularizing channel into myocardium.
Claim 26
Dependent Claim
23 words
The method of claim 23 wherein step e) is preceded by the step of piercing the endocardial surface by the interventional procedural device.
Claim 27
Dependent Claim
23 words
The method of claim 23 wherein the interventional procedure further includes stimulation and step e) further includes creating stimulation voids within the myocardium.
Claim 28
Dependent Claim
34 words
The method of claim 16 wherein the body cavity is a ventricle of a heart and step c) includes positioning the distal end of the flexible shaft at an apex of the heart ventricle.
Claim 29
Dependent Claim
29 words
The method of claim 16 wherein the interventional procedure is stimulation, the interventional procedural device is a laser delivery device and step e) includes creating voids within myocardial tissue.
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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) | 2002-01-04 | 2002-07-06 | 2003-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-01-04 | 2006-07-06 | 2007-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-01-04 | 2010-07-06 | 2011-01-05 | $7700.00 | Window Closed / Lapsed |