Patent ID: 9169961
Filing Date: 2015-10-27
Classification: A61B,F16M

Abstract:
1. A lifting apparatus of surgery comprising: a vertical post; a horizontal arm; a rack slider; and a vertical rack; said vertical post with one end to be mounted on a surgical table and the other end to be slid on and pivoted by the horizontal arm; said horizontal arm including a hole, a shaft and a fastening means, wherein the hole of the horizontal arm can slide and pivot on the vertical post, the shaft of the horizontal arm can be slid on by the rack slider and the fastening means of the horizontal arm can secure the horizontal arm on the vertical post; said rack slider including a hole, and a lifting mechanism, wherein the hole of the rack slider can slide on the shaft of the horizontal arm and the lifting mechanism of the rack slider can engage with the vertical rack, said lifting mechanism comprising a handle, a pivot, two extending pins, a disc, a pinion hole and a rack slot, said handle mounted on one end of the pivot to be rotated by handle, two extending pins on the other end of pivot, which spaced at a proper distance and attached to the disc, to engage with the vertical rack, whereby upon rotating handle to engage extending pins with the vertical rack to form a rack and pinion system; and said vertical rack including a rack and an adaptor, wherein the rack of the vertical rack can engage with the lifting mechanism of the rack slider and the adaptor of the vertical rack can couple with an instrument; whereby clamping the vertical post on the surgical table, sliding and securing the horizontal arm on the vertical post to desired position, sliding the rack slider on the horizontal arm to desired position above a patient's abdominal wall, engaging the rack slider with the vertical rack, and raising the vertical rack to provide lifting by turning the handle of the lifting mechanism on the rack slider; wherein said fastening means comprising: a holding base capable of sliding or rotating on a rod; a driving bolt rotatably engageable in the holding base; a thrusting block rotatably coupled with the driving bolt and reciprocatively held in the holding base; and a follower block engageable with the thrusting block and reciprocatively moving in the holding base; said holding base including: a rod hole longitudinally formed in the holding base to be slidably engageable with the rod about a longitudinal axis (X); a first block hole transversely formed in the holding base about a first latitudinal axis (Y) projectively perpendicular to the longitudinal axis (X); a screw hole formed in the holding base and coaxially communicated with the first block hole about the first latitudinal axis (Y); and a second block hole transversely formed in the holding base about a second latitudinal axis (Z) perpendicular to the first latitudinal axis (Y) to be perpendicularly intersected with the first block hole; said driving bolt including: a bolt shank portion, a screw portion having male threads formed thereon and formed on a distal end of the shank portion to be engageable with the screw hole formed in the holding base, a handle formed on a proximal end of the shank portion, and a neck portion annularly recessed in the shank portion adjacent to the handle portion; said thrusting block including: a sleeve member slidably engageable with the first block hole formed in the holding base, a bolt hole longitudinally formed through the sleeve member and rotatably engageable with the shank portion of the driving bolt, a screw rotatably formed in a screw hole transversely formed through the sleeve member and engageable with the neck portion of the driving bolt for rotatably coupling the driving bolt with the thrusting block, a driving slope surface formed on a side surface of the sleeve member and tapered inwardly towards the first latitudinal axis (Y), a first elongate slot formed in the sleeve member parallel to the first latitudinal axis (Y), and a first limiting screw secured in the holding base and slidably engageable with the first elongate slot for preventing an axial rotation of the sleeve member about the first latitudinal axis (Y); and said follower block engaging in said second block hole in said holding base and including: a follower wedge face formed on a first end portion of the follower block to be tangentially engageable with the driving wedge face of the thrusting block, a recess portion recessed in a second end portion of the follower block opposite to the follower wedge face in order to interfere in a rod surface circumferentially formed on the rod, a second elongate slot formed in the follower block parallel to the second latitudinal axis (Z), and a second limiting screw secured in the holding base and slidably engageable with the second elongate slot for preventing an axial rotation of the follower block about the second latitudinal axis (Z); whereby upon rotation of the driving bolt for driving the thrusting block inwardly in said base, said follower block will be thrusted to interfere in the rod for firmly fastening the rod in the holding base.