| 主权项 |
1. A surgical leg positioner, comprising:
a. a surgical bed clamp, comprising:
i. an elongated supporting member having a first end and a second end opposite the first end, and a pair of opposing sides, wherein the first end, the second end, and the opposing sides define a top surface and a bottom surface, wherein the first end comprises a recessed surface, and wherein the recessed surface defines a slot,ii. an elongated post having a first end and a second end, wherein the first end of the elongated post comprises a platform defined in a plane perpendicular to the elongated post, the platform comprising a shaft projecting perpendicularly upward parallel to the post, andiii. a compression lock comprising a flanged head mounted on top of the shaft, a rod projecting downwardly through the shaft and the platform, and a knob attached to the rod below the platform, the knob configured to tighten or loosen the flanged head via the rod against the recessed surface of the elongated supporting member, wherein the flanged head resides on the recessed surface allowing the supporting member to move laterally, b. a thigh clamp module mounted on the surgical bed clamp and rotatably attached to the second end of the elongated supporting member, the thigh clamp module comprising:
i. a base frame comprising a proximal end, a distal end opposite the proximal end, a pair of opposing side ends adjacent to the distal end and the proximal end, a pair of lateral extensions projecting laterally away from each other from their respective opposing side ends, each lateral extension terminating at a lateral free end, wherein the proximal end, distal end, opposing side ends, and lateral extensions define a top surface and a bottom surface opposite the top surface, wherein the top surface comprises a lateral channel extending substantially from the lateral free end of one lateral extension to the lateral free end of the second lateral extension, and wherein the bottom surface comprises a rotation mount configured to attach to the elongated supporting member at the second end in a rotatable manner, and a rotation mount lock to engage the rotation mount to lock the elongated supporting member to prevent rotation, and a distal extension projecting from the distal end and away from the proximal end of the base frame,ii. a rack and pinion assembly comprising a pinion centrally located in the lateral channel, a first rack operatively connected to the pinion on one side of the pinion, a second rack operatively connected to the pinion on the diametrically opposite side of the pinion,iii. a lock assembly configured to lock the rack and pinion assembly at a desired location, the lock assembly comprising a ratchet mounted on the opinion, a pawl operatively connected to the ratchet to permit rotation of the ratchet in one direction, a trigger connected to the pawl, the trigger having a first end and a second end opposite the first end and a mounting pin therebetween, a first trigger rod attached to the first end of the trigger and extending perpendicularly away from the trigger in a first direction, a second trigger rod attached to the second end of the trigger and extending perpendicularly away from the trigger in a second direction opposite of the first direction, a first trigger button attached to the first trigger rod, a second trigger button attached to the second trigger rod, wherein depression of the first trigger button or the second trigger button causes the trigger to rotate about the mounting pin and disengage from the ratchet allowing the first and second racks to slide along the lateral channel, a first spring operatively connected to the first trigger rod and a second spring operatively connected to the second trigger rod, the first and second springs imparting a laterally biasing force against the first and second trigger rods, respectively, causing the pawl to engage the ratchet,iv. a flat base frame cap comprising a proximal end, a distal end opposite the proximal end, a pair of opposing side ends adjacent to the distal end and the proximal end, and a pair of guide arms projecting laterally away from each other from their respective side ends, each guide arm comprising a guide arm slot;v. a thigh brace connected to the first and second racks, the thigh brace comprising a pair of side pads, each side pad mounted on its own side pad frame, each side pad frame movably mounted on a pad frame bracket, wherein each side pad frame is defined by an interior face and an exterior face, the exterior face comprising an exterior slot and a tightening bolt, each pad frame bracket comprising a sliding bracket and a support arm, wherein the exterior slot is configured to slide along the support arm and the tightening bolt is configured to tighten each side pad frame at any point along its respective support arm, wherein each sliding bracket is connected to its respective rack through their respective guide arm slots on their respective guide arms, and a base pad mounted on the base frame cap; c. a swing arm module attached to the distal extension, the swing arm module comprising:
i. a base arm having an L-shape configuration comprising a vertical arm and a horizontal arm, wherein the vertical arm has a first terminal end, the horizontal arm has a second terminal end, wherein the first terminal end comprises a toothed-gear, and the second terminal end is connected to the distal extension,ii. a vertical bracket comprising an upper end and a lower end opposite the upper end, the upper end attached to the vertical arm of the base arm at the toothed-gear and configured to rotate about a first joint axis defined by the toothed gear, the vertical bracket comprising a brake slot through which the toothed-gear protrudes, and a slide brake slidably mounted within the brake slot, the slide brake having a first end, a second end opposite the first end, and a handle therebetween, the first end of the slide brake comprising a toothed-end configured to engage the toothed-gear, a third spring positioned in the brake slot abutting the second end of the slide brake to impart a biasing force against the second end of the slide brake causing the toothed-end to engage the toothed-gear,iii. a horizontal bracket having a medial end and a lateral end, the lateral end defining a circular cavity into which a gear plate can be removably seated to connect to the lower end of the vertical bracket, the gear plate having a locked configuration in which the gear plate is seated within the cavity and engaged with the lateral end to prevent movement of the horizontal bracket, and an unlocked configuration in which the gear plate is disengaged from the lateral end to allow the horizontal bracket to rotate about a second joint axis defined by the gear plate, the gear plate having a knob for engaging and disengaging the gear plate and the lateral end of the horizontal bracket, the medial end comprising a horizontal channel configured to receive a locking pin;iv. a main axle having a proximal end, a distal end opposite the proximal end, a first side adjacent to the proximal end and the distal end, and a second side opposite the first side and adjacent to the proximal end and the distal end, the proximal end comprising a through-hole extending from the first side to the second side, wherein the horizontal bracket is attachable to the first side or the second side of the main axle when the horizontal channel of the medial end of the horizontal bracket is aligned with the through hole on the first side or the second side of the main axle such that the locking pin is slidable through the through-hole and the horizontal channel to lock the horizontal bracket to the proximal end of the main axle interchangeably on the first side or the second side, respectively; d. a foot brace, comprising a plantar portion having a heel end and a toe end opposite the heel end, and a heel portion extending substantially perpendicularly from the plantar portion at the heel end; and e. a rotation lock base, comprising
i. a clamp portion slidably mounted on the main axle,ii. a rotation lock housing connected to the clamp, the rotation lock housing comprising a floor plate defining an arcuate slot, andiii. a rotation lock assembly, comprising an adjustable handle, a spur gear, a spur gear pin, and a rotational lock base cover, wherein the adjustable handle comprises a handle portion defining a longitudinal handle axis, a disc portion comprising a perimeter and a center, the handle portion attached to the disc portion at the center of the disc portion, and a guide pin protruding from the disc portion attached adjacent to the perimeter and in line with the longitudinal handle axis, the guide pin protruding into the arcuate slot, and the center of the disc portion rotatably mounted to the rotation lock housing, wherein the spur gear is rotatable within the rotation lock housing, the spur gear comprising a toothed perimeter, the spur gear connected to the foot brace adjacent the heel portion, wherein the spur gear pin is slidably mounted to the rotation lock housing in between the adjustable handle and the spur gear, the spur gear pin comprising a handle engagement portion and a spur gear engagement portion, the handle engagement portion and the spur gear engagement portion arranged in a T-configuration, the handle engagement portion comprising a horizontal slot into which the guide pin resides, the spur gear engagement portion configured to engage the toothed perimeter of the spur gear, wherein rotation of the adjustable handle causes the guide pin to slide within the horizontal slot and the arcuate slot to move the spur gear pin in an upward or downward direction to disengage to or engage, respectively, the spur gear, and wherein the rotational lock base cover covers the rotation lock assembly in the rotation lock housing, wherein the base frame, the swing arm, and the foot brace are linearly aligned along a longitudinal axis and the lateral end of the horizontal bracket is laterally offset from the longitudinal axis. |
