US5972029A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Remotely operable stent
Assignee: Biovail Technologies Ltd
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Filing: 1998-03-23
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Granted: 1999-10-26
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Expires: 2018-03-23
Abstract
Abstract A remotely operable stent is disclosed which is radially expandable and contractable along the longitudinal length of the stent. Once the stent is positioned within a body lumen requiring radial support, an actuator and expansion/contraction element increase the radial dimension of the stent along the stent's longitudinal length to provide such support. The stent is remotely operable in vivo using a remote activation system such that the radial dimension of the stent can be changed without the need to re-enter the body lumen.
Inventors
- 👤 Richard C. Fuisz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:20
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/92
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
110 words
A stent remotely and non-invasively adjustable when the stent is implanted in a living animal comprising: a tubular body portion defining a longitudinal length, a hollow interior and an exterior surface; one or more expansion/contraction elements located along said longitudinal length of said body portion; and one or more actuators operatively associated with said one or more expansion/contraction elements, wherein said actuators are remotely responsive to an activation signal from a control source remote from and not in direct physical contact with said one or more actuators for operatively actuating said one or more expansion/contraction elements for increasing or decreasing the radial dimension of said body portion of said stent.
Claim 2
Dependent Claim
110 words
A stent remotely and non-invasively adjustable when the stent is implanted in a living animal comprising: a tubular body portion defining a longitudinal length, a hollow interior and an exterior surface; one or more expansion/contraction elements located along said longitudinal length of said body portion; and one or more actuators operatively associated with said one or more expansion/contraction elements, wherein said actuators are remotely responsive to an activation signal from a control source remote from and not in direct physical contact with said one or more actuators for operatively actuating said one or more expansion/contraction elements for increasing or decreasing the radial dimension of said body portion of said stent.
Claim 3
Independent Claim
139 words
A system for remotely controlling the radial dimension of a stent implanted in a living animal, comprising: a stent remotely adjustable when the stent is implanted in a living animal comprising: a tubular body portion defining a longitudinal length, a hollow interior and an exterior surface; one or more expansion/contraction elements located along said longitudinal length of said body portion; and one or more actuators operatively associated with said one or more expansion/contraction elements; and a control source for transmitting an activation signal, said control source located remote from and external and not in direct physical contact with to said one or more actuators; wherein said actuators are responsive to an activation signal from said remotely located control source; and whereby the expansion and contraction of said stent are remotely adjusted by means of said remotely located control source.
Claim 4
Independent Claim
139 words
A system for remotely controlling the radial dimension of a stent implanted in a living animal, comprising: a stent remotely adjustable when the stent is implanted in a living animal comprising: a tubular body portion defining a longitudinal length, a hollow interior and an exterior surface; one or more expansion/contraction elements located along said longitudinal length of said body portion; and one or more actuators operatively associated with said one or more expansion/contraction elements; and a control source for transmitting an activation signal, said control source located remote from and external and not in direct physical contact with to said one or more actuators; wherein said actuators are responsive to an activation signal from said remotely located control source; and whereby the expansion and contraction of said stent are remotely adjusted by means of said remotely located control source.
Claim 5
Dependent Claim
20 words
The system of claim 2, wherein said control source comprises a source of electromagnetic radiation and means of transmission thereof.
Claim 6
Dependent Claim
12 words
The system of claim 2, wherein said source comprises an infrared source.
Claim 7
Dependent Claim
13 words
The system of claim 2, wherein said source comprises a radio-frequency energy source.
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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) | 2002-10-25 | 2003-04-26 | 2003-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-10-25 | 2007-04-26 | 2007-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-10-25 | 2011-04-26 | 2011-10-26 | $7700.00 | Window Closed / Lapsed |