US6113608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stent delivery device
Assignee: Boston Scientific Scimed Inc
•
Filing: 1998-11-20
•
Granted: 2000-09-05
•
Expires: 2018-11-20
Abstract
Abstract A stent delivery system having a hydraulically actuated retractable sheath is disclosed. A pressurizing fluid is either supplied by an inflation lumen to a portion of a piston housing or is withdrawn from a portion of a piston housing, thereby actuating a piston. As the piston moves, a retractable sheath which is connected to the piston moves as well causing the sheath to retract.
Inventors
- 👤 Lance A. Monroe
- 👤 Andrew D. Bicek
- 👤 Anthony C. Vrba
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:48
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/95; A61F2/962; A61F2/966
Claims Analysis
Total Claims: 44
Claim 1
Independent Claim
136 words
A medical device delivery apparatus for delivery of a medical device to a desired bodily location, the apparatus having a proximal and a distal end and comprising: an elongate flexible catheter having proximal and distal ends, the catheter having a medical device receiving region at the distal end thereof; a retractable sheath for surrounding the medical device receiving region of the elongate catheter; a retraction device for retracting the retractable sheath, the retraction device comprising: a piston housing having a first portion and a second portion therein, the first and second portions separated by a movable piston contained within the housing, the first portion having an inflatable element therein, and a connecting member, one end of which is in mechanical communication with the retractable sheath, the other end of the connecting member connected to the piston.
Claim 2
Dependent Claim
136 words
A medical device delivery apparatus for delivery of a medical device to a desired bodily location, the apparatus having a proximal and a distal end and comprising: an elongate flexible catheter having proximal and distal ends, the catheter having a medical device receiving region at the distal end thereof; a retractable sheath for surrounding the medical device receiving region of the elongate catheter; a retraction device for retracting the retractable sheath, the retraction device comprising: a piston housing having a first portion and a second portion therein, the first and second portions separated by a movable piston contained within the housing, the first portion having an inflatable element therein, and a connecting member, one end of which is in mechanical communication with the retractable sheath, the other end of the connecting member connected to the piston.
Claim 3
Dependent Claim
23 words
The medical device delivery apparatus of claim 1 further comprising a medical device surrounding the medical device receiving region of the flexible catheter.
Claim 4
Dependent Claim
25 words
The medical device delivery apparatus of claim 2 wherein the medical device is selected from the group consisting of stents, vena cava filters and grafts.
Claim 5
Dependent Claim
24 words
The medical device delivery apparatus of claim 3 wherein the first portion of the piston housing extends to the proximal end of the device.
Claim 6
Dependent Claim
21 words
The medical device delivery apparatus of claim 3 further comprising an inflation lumen capable of fluid communication with the inflatable element.
Claim 7
Dependent Claim
26 words
The medical device delivery apparatus of claim 3 wherein the first portion of the piston housing is proximal of the second portion of the piston housing.
Claim 8
Dependent Claim
15 words
The medical device delivery apparatus of claim 6 wherein the connecting member is relatively rigid.
Claim 9
Dependent Claim
26 words
The medical device delivery apparatus of claim 3 wherein the first portion of the piston housing is distal of the second portion of the piston housing.
Claim 10
Dependent Claim
15 words
The medical device delivery apparatus of claim 3 wherein the connecting member is a wire.
Claim 11
Dependent Claim
18 words
The medical device delivery apparatus of claim 3 wherein the second portion of the piston housing is sealed.
Claim 12
Dependent Claim
21 words
The medical device delivery apparatus of claim 3 wherein the second portion of the piston housing has pressure relief openings therein.
Claim 13
Dependent Claim
21 words
The medical device delivery apparatus of claim 3 wherein the second portion of the piston housing has a bio-compatible fluid therein.
Claim 14
Dependent Claim
15 words
The medical device delivery apparatus of claim 3 wherein the inflatable element is accordion shaped.
Claim 15
Dependent Claim
33 words
The medical device delivery apparatus of claim 3 wherein the apparatus is configured in a configuration selected from the group consisting of a rapid exchange configuration, an over-the-wire configuration and a fixed-wire configuration.
Claim 16
Dependent Claim
24 words
The medical device delivery apparatus of claim 3 wherein the piston housing surrounds and is coaxial with a portion of the elongate flexible catheter.
Claim 17
Dependent Claim
34 words
The medical device delivery apparatus of claim 3 wherein a transverse cross-section of the piston housing extends across a substantial portion of a transverse cross-section of the apparatus in the region of the piston.
Claim 18
Dependent Claim
21 words
The medical device delivery apparatus of claim 1 wherein the piston is actuated by supplying a fluid to the inflatable element.
Claim 19
Dependent Claim
35 words
The medical device delivery apparatus of claim 1 wherein the inflatable element contains an inflation fluid therein and the piston is actuated is by removing at least some of the fluid from the inflatable element.
Claim 20
Dependent Claim
129 words
A medical device delivery apparatus for implantation of a medical device in a vessel comprising: an elongate flexible catheter having proximal and distal ends, the catheter having a medical device receiving region at the distal end thereof a retractable sheath surrounding at least a portion of the medical device receiving region; a retraction device for retracting the retractable sheath, the retraction device comprising: a piston housing having a first and a second portion therein, the first and second portions separated by a movable piston contained within the housing, the piston housing surrounding and coaxial with a portion of the elongate flexible catheter, and a connecting member, one end of which is in mechanical communication with the retractable sheath, the other end of the connecting member connected to the piston.
Claim 21
Dependent Claim
129 words
A medical device delivery apparatus for implantation of a medical device in a vessel comprising: an elongate flexible catheter having proximal and distal ends, the catheter having a medical device receiving region at the distal end thereof a retractable sheath surrounding at least a portion of the medical device receiving region; a retraction device for retracting the retractable sheath, the retraction device comprising: a piston housing having a first and a second portion therein, the first and second portions separated by a movable piston contained within the housing, the piston housing surrounding and coaxial with a portion of the elongate flexible catheter, and a connecting member, one end of which is in mechanical communication with the retractable sheath, the other end of the connecting member connected to the piston.
Claim 22
Dependent Claim
27 words
The medical device delivery apparatus of claim 19 further comprising a medical device surrounding the medical device receiving region of the flexible catheter near its distal end.
Claim 23
Dependent Claim
25 words
The medical device delivery apparatus of claim 20 wherein the medical device is selected from the group consisting of stents, vena cava filters and grafts.
Claim 24
Dependent Claim
33 words
The medical device delivery apparatus of claim 21 wherein the apparatus is configured in a configuration selected from the group consisting of a rapid exchange configuration, an over-the-wire configuration and a fixed-wire configuration.
Claim 25
Dependent Claim
25 words
The medical device delivery apparatus of claim 21 further comprising an inflation lumen capable of fluid communication with the first portion of the piston housing.
Claim 26
Dependent Claim
32 words
The medical device delivery apparatus of claim 23 further comprising an inflatable element within the first portion of the piston housing, the inflatable element capable of fluid communication with the inflation lumen.
Claim 27
Dependent Claim
26 words
The medical device delivery apparatus of claim 21 wherein the first portion of the piston housing is proximal of the second portion of the piston housing.
Claim 28
Dependent Claim
20 words
The medical device delivery apparatus of claim 25 wherein the first portion extends to the proximal end of the device.
Claim 29
Dependent Claim
15 words
The medical device delivery apparatus of claim 21 wherein the connecting member is relatively rigid.
Claim 30
Dependent Claim
26 words
The medical device delivery apparatus of claim 21 wherein the first portion of the piston housing is distal of the second portion of the piston housing.
Claim 31
Dependent Claim
15 words
The medical device delivery apparatus of claim 21 wherein the connecting member is a wire.
Claim 32
Dependent Claim
18 words
The medical device delivery apparatus of claim 21 wherein the second portion of the piston housing is sealed.
Claim 33
Dependent Claim
21 words
The medical device delivery apparatus of claim 21 wherein the second portion of the piston housing has pressure relief openings therein.
Claim 34
Dependent Claim
21 words
The medical device delivery apparatus of claim 21 wherein the second portion of the piston housing has a bio-compatible fluid therein.
Claim 35
Dependent Claim
17 words
The medical device delivery apparatus of claim 21 wherein the piston is slidably sealed to the catheter.
Claim 36
Dependent Claim
24 words
The medical device delivery apparatus of claim 19 wherein the piston is actuated by supplying a fluid to the first portion of the housing.
Claim 37
Dependent Claim
42 words
The medical device delivery apparatus of claim 19 wherein the first portion of the housing contains an inflation fluid therein and the piston is actuated is actuated by removing at least some of the fluid from the first portion of the housing.
Claim 38
Dependent Claim
94 words
A method for delivering a stent to a desired bodily location using the apparatus of claim 3 comprising the steps of: providing a medical device delivery apparatus as in claim 3 wherein the medical device is a stent; inserting at least a portion of the device in a bodily vessel; advancing the stent to a desired location; providing a source of fluid; supplying the fluid under pressure to the inflatable element so as to actuate the piston and retract the sheath; deploying the stent; withdrawing the medical device delivery apparatus from the bodily vessel.
Claim 39
Dependent Claim
18 words
The method of claim 36 further comprising the step of priming the second portion of the piston housing.
Claim 40
Dependent Claim
97 words
A method for delivering a stent to a desired bodily location using the apparatus of claim 18 comprising the steps of: providing a medical device delivery apparatus as in claim 18, the device further having a stent surrounding the medical device receiving region; inserting at least a portion of the device in a bodily vessel; advancing the stent to a desired location; removing at least a portion of the fluid from the inflatable element so as to actuate the piston and retract the sheath; deploying the stent; withdrawing the medical device delivery apparatus from the bodily vessel.
Claim 41
Dependent Claim
99 words
A method for delivering a stent to a desired bodily location using the apparatus of claim 19 comprising the steps of: providing a medical device delivery apparatus as in claim 19, the device further having a stent surrounding the medical device receiving region; inserting at least a portion of the device in a bodily vessel; advancing the stent to a desired location; providing a source of fluid; supplying the fluid under pressure to the inflatable element so as to actuate the piston and retract the sheath; deploying the stent; withdrawing the medical device delivery apparatus from the bodily vessel.
Claim 42
Dependent Claim
102 words
A method for delivering a stent to a desired bodily location using the apparatus of claim 35 comprising the steps of: providing a medical device delivery apparatus as in claim 35, the device further having a stent surrounding the medical device receiving region; inserting at least a portion of the device in a bodily vessel; advancing the stent to a desired location; providing a source of fluid; removing at least a portion of the fluid from the inflatable element so as to actuate the piston and retract the sheath; deploying the stent; withdrawing the medical device delivery apparatus from the bodily vessel.
Claim 43
Independent Claim
203 words
A method for delivering a medical device to a desired bodily location comprising the steps of: providing a medical device delivery apparatus comprising: a) an elongate flexible catheter having proximal and distal ends, a medical device receiving region at the distal end thereof, a medical device mounted on the medical device receiving region; b) a retractable sheath for surrounding the medical device receiving region of the elongate catheter; c) a retraction device for retracting the retractable sheath, the retraction device comprising: i) a piston housing having a first portion and a second portion therein, the first and second portions separated by a movable piston contained within the housing, the first portion having a fluid therein; and ii) a connecting member, one end of which is in mechanical communication with the retractable sheath, the other end of the connecting member connected to the piston; inserting at least a portion of the apparatus in a bodily vessel; advancing the medical device to a desired location; removing at least a portion of the fluid from the first portion of the piston housing so as to actuate the piston and retract the sheath; deploying the medical device; withdrawing the medical device delivery apparatus from the bodily vessel.
Claim 44
Independent Claim
203 words
A method for delivering a medical device to a desired bodily location comprising the steps of: providing a medical device delivery apparatus comprising: a) an elongate flexible catheter having proximal and distal ends, a medical device receiving region at the distal end thereof, a medical device mounted on the medical device receiving region; b) a retractable sheath for surrounding the medical device receiving region of the elongate catheter; c) a retraction device for retracting the retractable sheath, the retraction device comprising: i) a piston housing having a first portion and a second portion therein, the first and second portions separated by a movable piston contained within the housing, the first portion having a fluid therein; and ii) a connecting member, one end of which is in mechanical communication with the retractable sheath, the other end of the connecting member connected to the piston; inserting at least a portion of the apparatus in a bodily vessel; advancing the medical device to a desired location; removing at least a portion of the fluid from the first portion of the piston housing so as to actuate the piston and retract the sheath; deploying the medical device; withdrawing the medical device delivery apparatus from the bodily vessel.
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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) | 2003-09-05 | 2004-03-06 | 2004-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-09-05 | 2008-03-06 | 2008-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-09-05 | 2012-03-06 | 2012-09-05 | $7700.00 | Window Closed / Lapsed |