Adaptor for surgical instrument for converting rotary input to linear output
First Claim
1. An adaptor for a powered surgical instrument, the adaptor comprising:
- a casing;
a cam drum disposed within the casing and defining a longitudinal axis, the cam drum being translatable along the longitudinal axis between a retracted position and an advanced position in relation to the casing, the cam drum being supported for rotation about the longitudinal axis and defining first and second radial cam grooves about an outer surface thereof, the first cam groove defining a first profile and the second cam groove defining a second profile;
a first linear driver including a first cam follower disposed in the first cam groove, the first linear driver being supported for movement between advanced and retracted positions in relation to the cam drum along an axis parallel to the longitudinal axis in response to rotation of the cam drum about the longitudinal axis; and
a second linear driver including a second cam follower disposed in the second cam groove, the second linear driver being supported for movement between advanced and retracted positions in relation to the cam drum along an axis parallel to the longitudinal axis in response to rotation of the cam drum about the longitudinal axis.
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Accused Products
Abstract
An adaptor for a powered surgical instrument includes a casing, a cam drum, a first linear driver, and a second linear driver. The cam drum defines and is translatable along a longitudinal axis of the adaptor between a retracted position and an advanced position. The cam drum is being supported for rotation about the longitudinal axis. The cam drum defines first and second radial cam grooves about an outer surface thereof. The first cam groove defines a first profile and the second cam groove defines a second profile. The first linear driver includes a first cam follower disposed in the first cam groove and the second linear driver includes a second cam follower disposed in the second cam groove. The first and second linear drivers are supported for movement between advanced and retracted positions in response to rotation of the cam drum.
449 Citations
20 Claims
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1. An adaptor for a powered surgical instrument, the adaptor comprising:
a casing;
a cam drum disposed within the casing and defining a longitudinal axis, the cam drum being translatable along the longitudinal axis between a retracted position and an advanced position in relation to the casing, the cam drum being supported for rotation about the longitudinal axis and defining first and second radial cam grooves about an outer surface thereof, the first cam groove defining a first profile and the second cam groove defining a second profile;
a first linear driver including a first cam follower disposed in the first cam groove, the first linear driver being supported for movement between advanced and retracted positions in relation to the cam drum along an axis parallel to the longitudinal axis in response to rotation of the cam drum about the longitudinal axis; and
a second linear driver including a second cam follower disposed in the second cam groove, the second linear driver being supported for movement between advanced and retracted positions in relation to the cam drum along an axis parallel to the longitudinal axis in response to rotation of the cam drum about the longitudinal axis.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An adaptor for a powered surgical instrument, the adaptor comprising:
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a casing; a cam drum defining a longitudinal axis, the cam drum being translatable along the longitudinal axis between a retracted position and an advanced position in relation to the casing, the cam drum being supported for rotation about the longitudinal axis and defining first and second radial cam grooves about an outer surface thereof, the first cam groove defining a first profile and the second cam groove defining a second profile; a first linear driver including a first cam follower disposed in the first cam groove, the first linear driver being supported for movement between advanced and retracted positions in relation to the cam drum along an axis parallel to the longitudinal axis in response to rotation of the cam drum about the longitudinal axis; a second linear driver including a second cam follower disposed in the second cam groove, the second linear driver being supported for movement between advanced and retracted positions in relation to the cam drum along an axis parallel to the longitudinal axis in response to rotation of the cam drum about the longitudinal axis; and a cam drum gear coupled to the cam drum such that rotation of the cam drum gear effects rotation of the cam drum. - View Dependent Claims (12, 13)
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14. A powered surgical instrument comprising:
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a handle including a receiver; an adaptor defining a longitudinal axis and including; a casing having proximal and distal end portions; a handle interface disposed in the proximal end portion, the handle interface releasably coupled to the receiver of the handle; a cam drum being translatable along the longitudinal axis between a retracted position and an advanced position in relation to the casing, the cam drum being supported for rotation about the longitudinal axis and defining first and second radial cam grooves about an outer surface thereof, the first cam groove defining a first profile and the second cam groove defining a second profile; a first pair of linear drivers including; a first linear driver including a first cam follower disposed in the first cam groove, the first linear driver being supported for movement between advanced and retracted positions in relation to the cam drum along an axis parallel to the longitudinal axis in response to rotation of the cam drum about the longitudinal axis; and a second linear driver including a second cam follower disposed in the second cam groove, the second linear driver being supported for movement between advanced and retracted positions in relation to the cam drum along an axis parallel to the longitudinal axis in response to rotation of the cam drum about the longitudinal axis; a second pair of linear drivers including; a third linear driver including a third cam follower disposed in the first cam groove, the third linear driver being supported for movement between advanced and retracted positions in relation to the cam drum along an axis parallel to the longitudinal axis in response to rotation of the cam drum about the longitudinal axis; and a fourth linear driver including a fourth cam follower disposed in the second cam groove, the fourth linear driver being supported for movement between advanced and retracted positions in relation to the cam drum along an axis parallel to the longitudinal axis in response to rotation of the cam drum about the longitudinal axis; and a locking mechanism positioned adjacent the distal end portion of the casing, the locking mechanism having a release switch and a lock bar operatively associated one another, the locking mechanism having a locked configuration and an unlocked configuration; and a loading unit including a connector releasably secured within the locking mechanism of the adaptor, wherein in the locked configuration the locking mechanism prevents separation of the adaptor and the loading unit. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification