Patent US6802835B2 successfully refreshed from Google Patents.
US6802835B2
Expired / Lapsed
US
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Apparatus and method for using a steerable catheter device
Assignee: Cybersonics Inc
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Filing: 2003-12-10
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Granted: 2004-10-12
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Expires: 2023-12-10
Abstract
Abstract A handle includes a body portion and a handle portion which is slidably and rotatably mounted on the body portion. Shoulders on the body portion and the handle portion limit relative sliding movement of the body portion and handle portion. A catheter open at both ends has one end fixed to the handle portion for movement therewith, the opposite end of the catheter having a shape memory tip. A fitting is threadedly connected to an enlarged part of the body portion. A sheath is threadedly connected to the fitting and the catheter is slidable and rotatable within the sheath. An annular channel is provided between the sheath and the catheter, this channel being in fluid communication with a bore in the fitting. The outer end of the sheath has holes therethrough in fluid communication with the channel. An irrigation inflow and aspiration outflow tube is also in fluid communication with the bore in the fitting. A first lock is provided adjacent the fitting for controlling the amount of frictional resistance to lengthwise movement of the catheter relative to the sheath and to lock the catheter in position. A medical device such as an endoscope may be received within the catheter for movement relative thereto. A second lock is supported by the handle portion for locking a medical device in position relative to the catheter.
Inventors
- 👤 Robert A. Rabiner
- 👤 Daniel E. Rabiner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:30
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/0105; A61M25/0133; A61M25/0152; A61M25/0067; A61M25/0068; A61M25/0069; A61M2025/018; A61M25/06; A61M25/0662; A61M2025/0681; A61M25/007; A61M25/0074; A61M25/0136
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
123 words
A steerable catheter device comprising: a sheath engaging a body portion of a handle, the sheath having an outer end and an inner end; a fitting supported by the handle and engaging the sheath; a flexible catheter engaging the handle and extending through the sheath, the flexible catheter having opposite open ends with a distal end of the flexible catheter engaging a shape memory catheter tip; a medical device inserted within the flexible catheter; and a first lock comprising a resilient compressible lock member, the first lock supported by the handle for adjusting a force required for longitudinal movement of the flexible catheter relative to the sheath and for locking the flexible catheter relative to sheath along a longitudinal axis of the sheath.
Claim 2
Dependent Claim
123 words
A steerable catheter device comprising: a sheath engaging a body portion of a handle, the sheath having an outer end and an inner end; a fitting supported by the handle and engaging the sheath; a flexible catheter engaging the handle and extending through the sheath, the flexible catheter having opposite open ends with a distal end of the flexible catheter engaging a shape memory catheter tip; a medical device inserted within the flexible catheter; and a first lock comprising a resilient compressible lock member, the first lock supported by the handle for adjusting a force required for longitudinal movement of the flexible catheter relative to the sheath and for locking the flexible catheter relative to sheath along a longitudinal axis of the sheath.
Claim 3
Dependent Claim
21 words
The steerable catheter device of claim 1 wherein the first lock comprises a portion of the handle threadably engaging the fitting.
Claim 4
Dependent Claim
38 words
The steerable catheter device of claim 1 wherein the first lock locks the flexible catheter relative to the sheath in a plurality of locations between a first limit of the handle and a second limit of the handle.
Claim 5
Dependent Claim
26 words
The steerable catheter device of claim 1 wherein the first lock controls a frictional resistance to longitudinal movement of the flexible catheter relative to the sheath.
Claim 6
Dependent Claim
17 words
The steerable catheter device of claim 1 wherein the fitting is engaged to an irrigation inflow tube.
Claim 7
Dependent Claim
17 words
The steerable catheter device of claim 1 wherein the fitting is engaged to an aspiration outflow tube.
Claim 8
Dependent Claim
22 words
The steerable catheter device of claim 1 wherein the fitting is engaged to an irrigation inflow tube and an aspiration outflow tube.
Claim 9
Dependent Claim
13 words
The steerable catheter device of claim 1 wherein the flexible catheter is disposable.
Claim 10
Dependent Claim
19 words
The steerable catheter device of claim 1 wherein a distal end of the shape memory catheter tip is rounded.
Claim 11
Dependent Claim
19 words
The steerable catheter device of claim 1 wherein the shape memory catheter tip comprises a plurality of radiopaque markings.
Claim 12
Dependent Claim
44 words
The steerable catheter device of claim 1 further comprising a second lock supported by the handle for adjusting the force required for longitudinal movement of the medical device relative to the flexible catheter and for locking the medical device relative to the flexible catheter.
Claim 13
Dependent Claim
17 words
The steerable catheter device of claim 11 wherein the second lock comprises a resilient compressible lock member.
Claim 14
Dependent Claim
20 words
The steerable catheter device of claim 11 wherein the second lock comprises an end cap threadably mounted on the handle.
Claim 15
Dependent Claim
123 words
A steerable catheter device comprising: a sheath having a plurality of holes at an outer end of the sheath for discharging an irrigation media; a handle having a body portion engaging the sheath for supporting the sheath; a catheter extending through the sheath creating an annular channel between the catheter and the sheath, the catheter engaging the handle; a fitting engaging the handle at a proximal end of the fitting; a medical device inserted within the catheter; a first lock supported by the handle for controlling longitudinal movement of the catheter relative to the sheath; a second lock supported by the handle for controlling longitudinal movement of the medical device relative to the catheter, the second lock comprising a resilient compressible lock member.
Claim 16
Dependent Claim
123 words
A steerable catheter device comprising: a sheath having a plurality of holes at an outer end of the sheath for discharging an irrigation media; a handle having a body portion engaging the sheath for supporting the sheath; a catheter extending through the sheath creating an annular channel between the catheter and the sheath, the catheter engaging the handle; a fitting engaging the handle at a proximal end of the fitting; a medical device inserted within the catheter; a first lock supported by the handle for controlling longitudinal movement of the catheter relative to the sheath; a second lock supported by the handle for controlling longitudinal movement of the medical device relative to the catheter, the second lock comprising a resilient compressible lock member.
Claim 17
Dependent Claim
20 words
The steerable catheter device of claim 14 wherein a shape memory catheter tip engages a distal end of the catheter.
Claim 18
Dependent Claim
21 words
The steerable catheter device of claim 15 wherein the shape memory catheter tip extends from a distal end of the sheath.
Claim 19
Dependent Claim
20 words
The steerable catheter device of claim 14 wherein the fitting engages an irrigation inflow tube and an aspiration outflow tube.
Claim 20
Dependent Claim
26 words
The steerable catheter device of claim 14 wherein the body portion of the handle is adapted to be grasped and rotated to lock the first lock.
Claim 21
Dependent Claim
25 words
The steerable catheter device of claim 14 wherein the first lock adjusts a force required for longitudinal movement of the catheter relative to the sheath.
Claim 22
Dependent Claim
25 words
The steerable catheter device of claim 14 wherein the first lock controls a frictional resistance to longitudinal movement of the catheter relative to the sheath.
Claim 23
Dependent Claim
19 words
The steerable catheter device of claim 14 wherein the second lock comprises an end cap threadably engaging the handle.
Claim 24
Dependent Claim
26 words
The steerable catheter device of claim 15 wherein the second lock adjusts a force required for longitudinal movement of the medical device relative to the catheter.
Claim 25
Dependent Claim
26 words
The steerable catheter device of claim 15 wherein the second lock controls a frictional resistance to longitudinal movement of the medical device relative to the catheter.
Claim 26
Independent Claim
124 words
A method of delivering a medical device in a vasculature of a body comprising: inserting a guidewire in the vasculature; moving a steerable catheter device over the guidewire, the steerable catheter device having a handle, a sheath supported by the handle and a flexible catheter extending through the sheath; moving the flexible catheter within the sheath to a treatment site; locking the flexible catheter relative to the sheath with a first lock; inserting the medical device through a proximal end of the flexible catheter at a proximal end of the steerable catheter device; advancing the medical device to the treatment site; locking the medical device relative to the flexible catheter with a second lock; and removing the guidewire from the vasculature of the body.
Claim 27
Independent Claim
124 words
A method of delivering a medical device in a vasculature of a body comprising: inserting a guidewire in the vasculature; moving a steerable catheter device over the guidewire, the steerable catheter device having a handle, a sheath supported by the handle and a flexible catheter extending through the sheath; moving the flexible catheter within the sheath to a treatment site; locking the flexible catheter relative to the sheath with a first lock; inserting the medical device through a proximal end of the flexible catheter at a proximal end of the steerable catheter device; advancing the medical device to the treatment site; locking the medical device relative to the flexible catheter with a second lock; and removing the guidewire from the vasculature of the body.
Claim 28
Dependent Claim
19 words
The method of claim 24 further comprising inserting the flexible catheter of the steerable catheter device over the guidewire.
Claim 29
Dependent Claim
21 words
The method of claim 24 further comprising engaging a shape memory catheter tip to a distal end of the flexible catheter.
Claim 30
Dependent Claim
23 words
The method of claim 24 further comprising squeezing a trigger portion of the handle to advance the flexible catheter relative to the sheath.
Claim 31
Dependent Claim
39 words
The method of claim 24 further comprising rotating a body portion of the handle to compress a first resilient compressible lock member of the first lock on the flexible catheter to lock the flexible catheter relative to the sheath.
Claim 32
Dependent Claim
40 words
The method of claim 24 further comprising rotating an end cap of the handle to compress a second resilient compressible lock member of the second lock on the medical device to lock the medical device relative to the flexible catheter.
Claim 33
Dependent Claim
27 words
The method of claim 24 further comprising irrigating the treatment site with an irrigation tube delivering an irrigation medium through a plurality of holes in the sheath.
Claim 34
Dependent Claim
17 words
The method of claim 24 further comprising aspirating debris from the treatment site with an aspiration tube.
Claim 35
Dependent Claim
16 words
The method of claim 24 further comprising engaging the handle to the sheath with a fitting.
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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) | 2007-10-12 | 2008-04-12 | 2008-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-10-12 | 2012-04-12 | 2012-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-10-12 | 2016-04-12 | 2016-10-12 | $7700.00 | Window Closed / Lapsed |