| CPC A61B 1/00154 (2013.01) [A61B 1/0016 (2013.01); A61B 1/313 (2013.01)] | 6 Claims |
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1. A guide port configured to guide a surgical instrument, comprising:
a housing having one or more interior surfaces that define an interior portion, the housing having an aperture formed in an external surface that opens to the interior portion;
a neck coupled to the housing, the neck extending along a neck axis from a proximal end of the neck to a distal end of the neck, wherein a passage extends through the neck from the proximal end of the passage to the distal end of the passage, wherein the proximal end of the passage is open to the interior portion of the housing, wherein the neck axis has an arcuate shape when viewed normal to the neck axis, the neck axis extending from the proximal end of the neck to the distal end of the neck and the housing and neck are integrally formed as a unitary part, and
a channel extending from a proximal end of the channel to a distal end of the channel, wherein the channel extends from the distal end of the passage to the proximal end of the passage, through a portion of the interior portion of the housing, and to the aperture formed in the housing such that the proximal end of the channel is disposed at or adjacent to the aperture formed in the housing and such that the distal end of the channel is disposed at the distal end of the passage through the neck, and wherein the channel is configured to receive the surgical instrument;
a dial actuator rotatably coupled to the housing, wherein the dial actuator has a shape of a disc having a center aperture, wherein the dial actuator rotates about a first portion of a dial actuator axle such that the first portion of the dial actuator axle extends through the center aperture of the disc, wherein a first portion of the disc defining the center aperture is disposed within the interior portion of the housing and a second portion of the disc disposed along a portion of a perimeter edge of the disc is disposed through a slot opening formed in the housing such that the second portion of the disc is disposed external to the housing;
a dial actuator gear rotatably coupled to the housing, wherein the dial actuator gear rotates about a second portion of the dial actuator axle such that when the dial actuator rotates about the dial actuator axle in a first rotational direction, the dial actuator gear also rotates about the dial actuator axle in the first rotational direction;
a first upper roller gear rotatably coupled to the housing, wherein the first upper roller gear rotates about a first portion of a first upper roller axle, and wherein the first upper roller gear engages the dial actuator gear such that when the dial actuator gear rotates about the dial actuator axle in the first rotational direction, the first upper roller gear rotates about the first portion of the first upper roller axle in a second rotational direction;
a first upper roller guide disposed on a second portion of the first upper roller axle, wherein when the first upper roller gear rotates about the first portion of the first upper roller axle in the second rotational direction, the first upper roller guide rotates about the second portion of the first upper roller axle in the second rotational direction, wherein a portion of the first upper roller guide is adjacent to a first portion of the channel such that the portion of the first upper roller guide contacts a first portion of the surgical instrument when the surgical instrument is received in the channel;
a second lower roller gear rotatably coupled to the housing, wherein the second lower roller gear rotates about a first portion of a second lower roller axle, and wherein the second lower roller gear engages the first upper roller gear such that when the first upper roller gear rotates about the first upper roller axle in the second rotational direction, the second lower roller gear rotates about the first portion of the second lower roller axle in the first rotational direction; and
a second lower roller guide disposed on a second portion of the second lower roller axle, wherein when the second lower roller gear rotates about the first portion of the second lower roller axle in the first rotational direction, the second lower roller guide rotates about the second portion of the second lower roller axle in the first rotational direction, wherein a portion of the second lower roller guide is adjacent to a second portion of the channel such that the portion of the second lower roller guide contacts a second portion of the surgical instrument when the surgical instrument is received in the channel,
wherein when the dial actuator is rotated in the first rotational direction, the portion of the first upper roller guide rotating in the second rotational direction and the portion of the second lower roller guide rotating in the first rotational direction cooperate to displace the surgical instrument in a first linear direction towards the distal end of the channel,
and wherein the dial actuator gear rotates in a first plane, the first upper roller gear rotates in the first plane, and the second lower roller gear rotates in the first plane.
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