Patent US2715869A successfully refreshed from Google Patents.
Patent US5389072A successfully refreshed from Google Patents.
US5389072A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanism for manipulating a tool and flexible elongate device using the same
Assignee: Medtronic Vascular Inc
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Filing: 1992-06-05
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Granted: 1995-02-14
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Expires: 2012-06-05
Abstract
Abstract Flexible elongate device comprising a flexible elongate member having proximal and distal extremities and a tool actuator member mounted on the distal extremity of the flexible elongate member. An elongate element having a negative coefficient of expansion is carried by the distal extremity of the flexible elongate member and is connected to the tool actuator member for causing movement of the tool actuating member. A control console is provided for supplying electrical energy to the elongate element.
Inventors
- 👤 Mir A. Imran
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:20
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/28; A61B17/29; A61M; A61M25/00; A61M25/01; A61M25/0105; A61M25/0133; A61M25/0158; B; B26; B26B; B26B15/00; A61B17/34; A61B17/3478; A61B2017/00367; A61B2017/00398; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2002/30001; A61F2002/30003; A61F2002/3006; A61F2002/30092; A61F2210/00; A61F2210/0014; A61F2210/0019; A61F2210/0023; A61F2210/0033
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
146 words
A flexible elongate device in the form of a small diameter guide wire or catheter for entering a vessel of a human body comprising a flexible elongate member having proximal and distal extremities, a tool actuator member mounted in the distal extremity of the flexible elongate tubular member, actuator element means having a negative coefficient of expansion disposed within the distal extremity of the flexible elongate member, said actuator element means including first and second opposing heat actuatable actuator elements said actuator element means having a transition temperature which is above the body temperature, electrical control means at the proximal extremity for supplying electrical energy to the actuator element means and means coupling the actuator elements to the tool actuator member for causing movement of the tool actuator member and to cause operation of the operable tool when heat is supplied to the actuator element means.
Claim 2
Dependent Claim
146 words
A flexible elongate device in the form of a small diameter guide wire or catheter for entering a vessel of a human body comprising a flexible elongate member having proximal and distal extremities, a tool actuator member mounted in the distal extremity of the flexible elongate tubular member, actuator element means having a negative coefficient of expansion disposed within the distal extremity of the flexible elongate member, said actuator element means including first and second opposing heat actuatable actuator elements said actuator element means having a transition temperature which is above the body temperature, electrical control means at the proximal extremity for supplying electrical energy to the actuator element means and means coupling the actuator elements to the tool actuator member for causing movement of the tool actuator member and to cause operation of the operable tool when heat is supplied to the actuator element means.
Claim 3
Dependent Claim
35 words
A device as in claim 1 wherein said actuator element means and the coupling means are constructed to supply linear motion to the tool actuator member when heat is supplied to the actuator element means.
Claim 4
Dependent Claim
34 words
A device as in claim 2 wherein the tool actuator member includes means carried thereby for providing movement in directions which are offset with respect to the longitudinal axis of the flexible elongate member.
Claim 5
Dependent Claim
55 words
A device as in claim 1 wherein said actuator element means includes first and second springs whereby when electrical energy is supplied to the first spring, the tool actuator member is moved in one direction and when electrical energy is supplied to the second spring the tool actuator member is moved in an opposite direction.
Claim 6
Dependent Claim
40 words
A device as in claim 4 wherein the coupling means includes a flange secured to a cylindrical tool actuator member and wherein said tool actuator member is cylindrical in form and has said first and second springs coaxially mounted thereon.
Claim 7
Dependent Claim
35 words
A device as in claim 1 wherein said actuator element means and the coupling means are constructed to supply rotational movement to the tool actuator member when heat is supplied to the actuator element means.
Claim 8
Dependent Claim
57 words
A device as in claim 3 wherein the actuator element means and the coupling means includes cooperative means in the form of a helical structure and an annular protrusion carried by the tool actuator member and the flexible elongate member for imparting rotational movement to the tool actuator member as the tool actuator member is moved rectilinearly.
Claim 9
Dependent Claim
26 words
A device as in claim 6 together with means for providing rectilinear motion of the tool actuator member independent of rotation of the tool actuator member.
Claim 10
Dependent Claim
92 words
A device as in claim 1 wherein said actuator element means includes an elongate element having first and second ends, means securing the first end within the flexible elongate member to prevent rotation thereof, means securing the second end of the elongate element to the tool actuator member to permit rectilinear movement of the tool actuator member but preventing rotation of the tool actuator member with respect to the second end of the elongate element whereby as the second end of the elongate element is rotated, the tool actuator member is rotated.
Claim 11
Dependent Claim
61 words
A device as in claim 1 including a tool wherein said tool is in the form of first and second members movable towards and away from each other and a linkage connecting at least one of said first and second members to said tool actuator member for causing movement of said first and second members toward and away from each other.
Claim 12
Dependent Claim
77 words
A device as in claim 1 together with valve means carried by the distal extremity of the flexible elongate member and being movable between open and closed positions to permit a tool to pass therethrough so that when a tool is advanced therethrough liquid is prevented from entering the distal extremity of the flexible elongate device and when a tool is retracted so that the tool no longer extends through the valve member the valve member closes.
Claim 13
Dependent Claim
39 words
A device as in claim 1 wherein said tool is provided with a flow passage extending therethrough and wherein said tool actuator member includes means for providing a flow passage in communication with the flow passage in the tool.
Claim 14
Dependent Claim
19 words
A device as in claim 1 wherein said flexible elongate member has a diameter of 7 French or less.
Claim 15
Dependent Claim
145 words
A mechanism for use in the medical field for manipulating a tool carried by the distal extremity of a flexible elongate tubular member having proximal and distal extremities and having a lumen therein extending from the proximal to the distal extremities and being adapted to be inserted into a vessel of a human body, comprising a tool actuator member disposed in said lumen and adapted to be connected to said tool, and actuation element means having a negative coefficient of expansion, said actuation element means including first and second opposing heat actuator elements having a transition temperature which is above the body temperature, means coupling the actuation element means to the tool actuator member and electrical means for supplying electrical energy to heat the actuation element means to cause motion to be supplied to tool actuator member to cause it to move in said lumen.
Claim 16
Dependent Claim
145 words
A mechanism for use in the medical field for manipulating a tool carried by the distal extremity of a flexible elongate tubular member having proximal and distal extremities and having a lumen therein extending from the proximal to the distal extremities and being adapted to be inserted into a vessel of a human body, comprising a tool actuator member disposed in said lumen and adapted to be connected to said tool, and actuation element means having a negative coefficient of expansion, said actuation element means including first and second opposing heat actuator elements having a transition temperature which is above the body temperature, means coupling the actuation element means to the tool actuator member and electrical means for supplying electrical energy to heat the actuation element means to cause motion to be supplied to tool actuator member to cause it to move in said lumen.
Claim 17
Dependent Claim
45 words
A mechanism as in claim 14 together with a console connected to the proximal extremity of the flexible elongate tubular member, said control console having manually controlled means for controlling the electrical means for causing the movement of the tool actuator member in said lumen.
Claim 18
Dependent Claim
34 words
A mechanism as in claim 15 wherein the coupling means is constructed to cause rectilinear movement of the tool actuator member in said lumen when the actuation element means is heated above body temperature.
Claim 19
Dependent Claim
24 words
A mechanism as in claim 16 wherein the coupling means includes means for translating rectilinear movement to rotational movement of the tool actuator member.
Claim 20
Dependent Claim
29 words
A mechanism as in claim 17 wherein the coupling means includes means for causing rotational movement of the tool actuator member independent of rectilinear of the tool actuator member.
Claim 21
Dependent Claim
34 words
A mechanism as in claim 15 wherein the coupling means is constructed to cause rotational movement of the tool actuator member in said lumen when the actuation element means is heated above body temperature.
Claim 22
Dependent Claim
58 words
A mechanism as in claim 15 wherein said flexible elongate tubular member has a longitudinal axis together with electrical means connected to the distal extremity of the flexible elongate tubular member for causing movement offset from the longitudinal axis of the elongate tubular member and extending through 360° for steering the distal extremity of the flexible elongate member.
Claim 23
Dependent Claim
19 words
A mechanism as in claim 14 wherein said flexible elongate member has a diameter of 7 French or less.
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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) | 1998-02-13 | 1998-08-15 | 1999-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-02-13 | 2002-08-15 | 2003-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-02-13 | 2006-08-15 | 2007-02-14 | $7700.00 | Window Closed / Lapsed |