Control mechanism for a surgical instrument
First Claim
Patent Images
1. A control mechanism for a surgical instrument, comprising:
- a structure having a first surface and a second surface;
a flexure mechanism connected to the first surface, the flexure mechanism having a shortened configuration and a lengthened configuration;
a control rod connected to the flexure mechanism;
a compressor having a channel for moving the flexure mechanism between the shortened configuration and the lengthened configuration; and
at least one spring disposed between the flexure mechanism and the second surface.
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Abstract
A control mechanism for a surgical instrument includes a structure having at least a first surface and a second surface. A flexure mechanism is disposed at least partially within the structure, and has a shortened position and a lengthened position. A control rod is slidable within the structure. At least one spring is disposed between the flexure mechanism and the second surface. The flexure mechanism moves the control rod from a first position to a second position when the flexure mechanism moves from the shortened position to the lengthened position.
302 Citations
19 Claims
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1. A control mechanism for a surgical instrument, comprising:
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a structure having a first surface and a second surface;
a flexure mechanism connected to the first surface, the flexure mechanism having a shortened configuration and a lengthened configuration;
a control rod connected to the flexure mechanism;
a compressor having a channel for moving the flexure mechanism between the shortened configuration and the lengthened configuration; and
at least one spring disposed between the flexure mechanism and the second surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A control mechanism for a surgical instrument, comprising:
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a structure having at least a first surface and a second surface;
a flexure mechanism disposed at least partially within the structure, the flexure mechanism having a shortened position and a lengthened position;
a control rod slidable within the structure;
at least one spring disposed between the flexure mechanism and the second surface;
wherein the flexure mechanism moves the control rod from a first position to a second position when the flexure mechanism moves from the shortened position to the lengthened position. - View Dependent Claims (10, 11)
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12. A control mechanism for a surgical instrument, comprising:
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a structure;
a flexure mechanism retained within the structure, the flexure mechanism having a shortened configuration and a lengthened configuration;
a control rod connected to the flexure mechanism;
a compressor movable between a first position and a second position, the compressor having a surface for moving the flexure mechanism between the shortened configuration and the lengthened configuration when compressor moves between the first position and the second position; and
at least one spring disposed between the flexure mechanism and the structure.
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13. A surgical instrument, comprising:
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a structure having a first surface and a second surface;
a control mechanism, comprising a flexure mechanism connected to the first surface, the flexure mechanism having a shortened configuration and a lengthened configuration;
a control rod connected to the flexure mechanism;
a compressor for moving the flexure mechanism between the shortened configuration and the lengthened configuration;
at least one spring disposed between the flexure mechanism and the second surface; and
an end effector attached to the control rod. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A method of controlling an end effector of a surgical device, comprising the steps of:
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providing a structure having a first surface and a second surface, a flexure mechanism connected to the first surface, the flexure mechanism having a shortened configuration and a lengthened configuration, a control rod connected to the flexure mechanism, a compressor having a channel for moving the flexure mechanism between the shortened configuration and the lengthened configuration, and at least one spring disposed between the flexure mechanism and the second surface;
moving the compressor relative to the flexure mechanism to cause the control rod to move from a proximal position to an intermediate position;
further moving the compressor relative to the flexure mechanism to move the flexure mechanism from the shortened configuration to the lengthened configuration; and
further moving the compressor relative to the flexure mechanism to compress the at least one spring.
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Specification