Patent US1801515A successfully refreshed from Google Patents.
US7316655B2
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Systems and methods for directing and snaring guidewires
Assignee: Medtronic Vascular Inc
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Filing: 2002-04-30
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Granted: 2008-01-08
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Expires: 2022-04-30
Abstract
Abstract Devices and methods for achieving directed placement of guidewires or other flexible rails over which other catheters or other devices may be introduced to a targeted location. A guidewire directing device includes a lumen extending between a proximal end and a distal peripheral opening for directing a guidewire laterally from the device, and may have a deflecting member with a predetermined deflection angle in the lumen adjacent the peripheral opening. A snaring device is also provided that includes one or more lumens through which a snare or other grasping member is directed for releasably capturing or coupling to a guidewire. The snaring and target guidewire devices may include cooperating end effectors for releasably coupling or securing the devices together. The devices may be used for directing, snaring and/or manipulating one or more guidewires between two blood vessels connected by an interstitial channel, for example, to “floss” a guidewire through the coronary arterial and venous systems between two percutaneous entry sites and/or to bypass a lesion in a vessel using proximal and distal interstitial channels communicating with an adjacent vessel.
Inventors
- 👤 John Garibotto
- 👤 Steven W. Kim
- 👤 Jason Whitt
- 👤 J. Christopher Flaherty
- 👤 Joshua Makower
- 👤 Motoya Hayase
- 👤 John Chang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:22
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/11; A61B17/12; A61B17/12022; A61B17/12099; A61B17/12109; A61B17/12131; A61B17/12136; A61B17/34; A61B17/3417; A61F; A61F2/00; A61F2/02; A61F2/04; A61F2/06; A61F2/064; A61M; A61M25/00; A61M25/01; A61M25/0105; A61B17/00491; A61B17/064; A61B17/0643; A61B17/22; A61B17/221; A61B17/32; A61B17/3205; A61B17/32056; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B18/1492; A61B17/00234; A61B2017/00238; A61B2017/00243; A61B2017/00247; A61B2017/00252; A61B2017/00504; A61B2017/1107; A61B2017/1139; A61B17/22031; A61B2017/22035; A61B2017/22094; A61B2017/2212; A61B17/30; A61B2017/306; A61B2017/347; A61B2018/00315; A61B2018/00345; A61B2018/00351; A61B2018/00392; A61B90/00; A61B90/39; A61B90/40; A61F2/07; A61F2/82; A61F2/86; A61F2/90; A61F2002/061; A61F2/30; A61F2002/30001; A61F2002/30003; A61F2002/3006; A61F2002/30079; A61F2002/825; A61F2210/00; A61F2210/009; A61M25/0067; A61M25/0074; A61M25/0075; A61M2025/0076; A61M25/0133; A61M2025/0161; A61M25/10; A61M2025/1043; A61M2025/1052
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
174 words
A catheter for directing a guidewire substantially laterally with respect to a body passage within which the catheter is introduced, comprising: an elongate member having proximal and distal ends, having a distal portion adapted for insertion within a body passage, and defining a longitudinal axis and an outer peripheral surface; a first lumen extending proximally from a first axial opening in the distal end; and a second lumen extending between the proximal end of the elongate member and a second lumen lateral opening in the distal portion proximate the distal end; wherein the distal portion comprises an angled step tapering to a distal tip, the second lumen lateral opening being located on the angled step; and a snaring member deployable from the second lumen lateral opening, said snaring member comprising a loop extending distally from the second lumen lateral opening and surrounding the distal portion of the elongate member such that as the snaring member is directed proximally and distally, the loop substantially engages and disengages, respectively, the outer surface of the elongate member.
Claim 2
Dependent Claim
174 words
A catheter for directing a guidewire substantially laterally with respect to a body passage within which the catheter is introduced, comprising: an elongate member having proximal and distal ends, having a distal portion adapted for insertion within a body passage, and defining a longitudinal axis and an outer peripheral surface; a first lumen extending proximally from a first axial opening in the distal end; and a second lumen extending between the proximal end of the elongate member and a second lumen lateral opening in the distal portion proximate the distal end; wherein the distal portion comprises an angled step tapering to a distal tip, the second lumen lateral opening being located on the angled step; and a snaring member deployable from the second lumen lateral opening, said snaring member comprising a loop extending distally from the second lumen lateral opening and surrounding the distal portion of the elongate member such that as the snaring member is directed proximally and distally, the loop substantially engages and disengages, respectively, the outer surface of the elongate member.
Claim 3
Dependent Claim
22 words
The catheter of claim 1 , wherein the second lumen lateral opening is located on the peripheral surface of the elongate member.
Claim 4
Dependent Claim
20 words
The catheter of claim 1 , wherein the second lumen includes a deflection ramp adjacent the second lumen lateral opening.
Claim 5
Dependent Claim
19 words
The catheter of claim 1 , wherein the first lumen has a peripheral opening proximate the first axial opening.
Claim 6
Dependent Claim
26 words
A system comprising a catheter according to claim 1 , further in combination with a snaring member that is deployable from the second lumen lateral opening.
Claim 7
Dependent Claim
59 words
The system of claim 5 , wherein the snaring member comprises a loop that is advanceable out of the second lumen lateral opening so as to surround the distal portion of the elongate member such that, as the snaring member is directed proximally and distally, the loop substantially engages and disengages, respectively, the outer surface of the elongate member.
Claim 8
Dependent Claim
120 words
A catheter for directing a device substantially laterally with respect to a body passage within which the catheter is introduced, comprising: an elongate member having proximal and distal ends, having a distal portion adapted for insertion within a body passage, and defining a longitudinal axis and an outer peripheral surface; first lumen extending between the proximal end of the elongate member and a lateral opening in the distal portion proximate the distal end; and a snaring member comprising a loop extending distally from the lateral opening and surrounding the distal portion of the elongate member such that as the snaring member is directed proximally and distally, the loop substantially engages and disengages, respectively, the outer surface of the elongate member.
Claim 9
Dependent Claim
120 words
A catheter for directing a device substantially laterally with respect to a body passage within which the catheter is introduced, comprising: an elongate member having proximal and distal ends, having a distal portion adapted for insertion within a body passage, and defining a longitudinal axis and an outer peripheral surface; first lumen extending between the proximal end of the elongate member and a lateral opening in the distal portion proximate the distal end; and a snaring member comprising a loop extending distally from the lateral opening and surrounding the distal portion of the elongate member such that as the snaring member is directed proximally and distally, the loop substantially engages and disengages, respectively, the outer surface of the elongate member.
Claim 10
Dependent Claim
20 words
The catheter of claim 7 , wherein the lateral opening is located on the peripheral surface of the elongate member.
Claim 11
Dependent Claim
17 words
The catheter of claim 7 , wherein the lumen includes a deflection ramp adjacent the lateral opening.
Claim 12
Dependent Claim
28 words
The catheter of claim 7 , wherein the distal portion comprises an angled step tapering to a distal tip, the lateral opening being located on the angled step.
Claim 13
Dependent Claim
21 words
The catheter of claim 7 , further comprising a second lumen extending proximally from an axial opening in the distal end.
Claim 14
Dependent Claim
19 words
The catheter of claim 11 , wherein the second lumen has a peripheral opening proximate the first axial opening.
Claim 15
Dependent Claim
32 words
The catheter of claim 11 , wherein the snaring member comprises a looped wire having first and second ends extending proximally through the first and second lumens, respectively, to define the loop.
Claim 16
Dependent Claim
31 words
The catheter of claim 7 , wherein the device comprises a guidewire, the snaring member configured for capturing the guidewire when the loop engages the outer surface of the elongate member.
Claim 17
Dependent Claim
18 words
The catheter of claim 7 , wherein the loop is biased to assume an enlarged substantially circular configuration.
Claim 18
Dependent Claim
44 words
The catheter of claim 15 , wherein the substantially circular configuration defines a predetermined diameter corresponding to a diameter of a lumen of a blood vessel, and wherein the distal portion of the elongate member has a diameter substantially smaller than the predetermined diameter.
Claim 19
Dependent Claim
28 words
The catheter of claim 7 , wherein the distal portion comprises an angled step tapering to a distal tip, the lateral opening being located on the angled step.
Claim 20
Dependent Claim
156 words
A catheter for directing a guidewire substantially laterally with respect to a body passage within which the catheter is introduced, said catheter comprising: an elongate member having proximal and distal ends, having a distal portion adapted for insertion within a body passage, and defining a longitudinal axis and an outer peripheral surface; a first lumen extending proximally from a first axial opening in the distal end; and a second lumen extending between the proximal end of the elongate member and a second lumen lateral opening in the distal portion proximate the distal end; and a snaring member deployable from the second lumen lateral opening, said snaring member comprising a loop that is advanceable distally from the second lumen lateral opening so as to surround the distal portion of the elongate member such that, as the snaring member is directed proximally and distally, the loop substantially engages and disengages, respectively, the outer surface of the elongate member.
Claim 21
Dependent Claim
156 words
A catheter for directing a guidewire substantially laterally with respect to a body passage within which the catheter is introduced, said catheter comprising: an elongate member having proximal and distal ends, having a distal portion adapted for insertion within a body passage, and defining a longitudinal axis and an outer peripheral surface; a first lumen extending proximally from a first axial opening in the distal end; and a second lumen extending between the proximal end of the elongate member and a second lumen lateral opening in the distal portion proximate the distal end; and a snaring member deployable from the second lumen lateral opening, said snaring member comprising a loop that is advanceable distally from the second lumen lateral opening so as to surround the distal portion of the elongate member such that, as the snaring member is directed proximally and distally, the loop substantially engages and disengages, respectively, the outer surface of the elongate member.
Claim 22
Dependent Claim
22 words
The catheter of claim 18 , wherein the second lumen lateral opening is located on the peripheral surface of the elongate member.
Claim 23
Dependent Claim
20 words
The catheter of claim 18 , wherein the second lumen includes a deflection ramp adjacent the second lumen lateral opening.
Claim 24
Dependent Claim
217 words
A catheter system for directing a guidewire substantially laterally with respect to a body passage within which the catheter is introduced, said catheter comprising: an elongate member having proximal and distal ends, a distal portion adapted for insertion within a body passage, a longitudinal axis, an outer peripheral surface, a first lumen extending proximally from an axial opening in the distal end and a second lumen extending between the proximal end of the elongate member and an unobstructed second lumen lateral opening in the distal portion proximate the distal end; wherein the first lumen also has a peripheral opening proximate the axial opening; wherein a deflection ramp is located within the second lumen adjacent the second lumen lateral opening; a guidewire having a distal end, the guidewire being advanceable through the second lumen such that the distal end of the guidewire will be deflected by the deflection ramp and will then advance out of the second lumen lateral opening; and an orientation element located on a distal portion of the catheter, said orientation element being usable in conjunction with an imaging device to enable the user to adjust the rotational orientation of the catheter within the body such that the guidewire will advance toward an intended target location as the guidewire exits the second lumen lateral opening.
Claim 25
Dependent Claim
217 words
A catheter system for directing a guidewire substantially laterally with respect to a body passage within which the catheter is introduced, said catheter comprising: an elongate member having proximal and distal ends, a distal portion adapted for insertion within a body passage, a longitudinal axis, an outer peripheral surface, a first lumen extending proximally from an axial opening in the distal end and a second lumen extending between the proximal end of the elongate member and an unobstructed second lumen lateral opening in the distal portion proximate the distal end; wherein the first lumen also has a peripheral opening proximate the axial opening; wherein a deflection ramp is located within the second lumen adjacent the second lumen lateral opening; a guidewire having a distal end, the guidewire being advanceable through the second lumen such that the distal end of the guidewire will be deflected by the deflection ramp and will then advance out of the second lumen lateral opening; and an orientation element located on a distal portion of the catheter, said orientation element being usable in conjunction with an imaging device to enable the user to adjust the rotational orientation of the catheter within the body such that the guidewire will advance toward an intended target location as the guidewire exits the second lumen lateral opening.
Claim 26
Dependent Claim
23 words
The catheter system of claim 21 , wherein the second lumen lateral opening is located on the peripheral surface of the elongate member.
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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) | 2011-01-07 | 2011-07-09 | 2012-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2015-01-07 | 2015-07-09 | 2016-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2019-01-07 | 2019-07-09 | 2020-01-08 | $7700.00 | Window Closed / Lapsed |