CN2220241Y

CN2220241Y - One-way controlled rib bow drawing device

Info

Publication number: CN2220241Y
Application number: CN 95207760
Authority: CN
Inventors: 李泮泉
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-04-05
Filing date: 1995-04-05
Publication date: 1996-02-21
Anticipated expiration: 2005-04-05

Abstract

The utility model relates to a one-way controlled rib bow drawing device, which comprises a supporting rod, a controller on the supporting rod, a wire rope, and a drawing hook and a rib bow drawing hook, wherein, the drawing hook and the rib bow drawing hook are positioned at the front end of the wire rope. The utility model is characterized in that the controller is provided with a cylindrical shell and a one-way control mechanism in the shell, wherein, the one-way control mechanism is composed of an outer shell, a pushing core in the outer shell, locking steel balls, a pushing spring, a guard sheet of the pushing spring and an end cover. The outer shell and the cone-shaped inclined plane of the pushing core are mainly used for causing the three locking steel balls to press and lock the wire rope.

Description

Unidirectional control arcus costarum pulling device

This utility model relates to medical apparatus and instruments, particularly a kind of unidirectional control arcus costarum pulling device that is used for upper abdominal surgery.

As everyone knows, the doctor of medical department or doctor are in doing abdominal operation, it is vital that surgical field of view appears, particularly in the operations such as epigastrium such as liver, gallbladder, pancreas, spleen, stomach, cardia, it is to guarantee one of advantage that operation is successful that the pull-up arcus costarum enlarges surgical field of view, if surgical field of view appears badly, will increase operating time, strengthen operating difficulty, cause suffering to patient.Go back the drag hook of the ideal exposure epigastrium of neither one internal organs at present, usually in the operation for the tractive arcus costarum, specify an assistant to draw arcus costarum often with the saddle hook, as the excessive fracture of rib that then causes of exerting oneself, exert oneself too small then can not the pull-up arcus costarum, can not make arcus costarum keep certain position enduringly, labor intensity is big, the other many assistants of operating-table, occupation of land side.Though there are frame-type or door case type drag hook present stage, have all that volume is big, the operation occupy-place is big, the influence operation, regulate deficiencies such as using inconvenience in the operation.Recent Chinese patent CN90227189.A kind of abdominal cavity tractor is disclosed for X number, it be by cramp bar, connect turn, coupling sleeve and drag hook constitute, simultaneously turn, connect two connection places of turning and be provided with the adjusting trip bolt with connecting with coupling sleeve at cramp bar, in torque arm, be provided with rack structure, on coupling sleeve, be provided with and revolve handle, revolve the bottom is provided with a pin gear, present technique can turn with the direction of coupling sleeve by connection and regulate, and can adjust the angle and direction of tractive at any time; Handle is revolved in turn; Drag hook is promptly removable, open surgical field of view, and pin gear automatically locks drag hook afterwards.Though it is little that this technology has the operation occupy-place, easy to use outside, therefore its torque arm that connects with drag hook, exists the specification requirement height for the suspention rigid structure, uses adjusting inconvenient, complex structure, poor rigidity, the high deficiency of manufacturing cost.

This utility model improves at the problem that prior art exists, and designs that a kind of both to have solved the operation occupy-place big, has good art open country and appears, simultaneously, simple in structure, can unidirectional control self-locking, use easy to adjust, easily processing and manufacturing, the unidirectional control arcus costarum pulling device that cost is low.

This utility model is achieved by following manner: a kind of unidirectional control arcus costarum pulling device, comprise the controller that can be inserted in the other socket of operation table and can pass through fixed cramp bar of knob and upper end setting thereof, and by the steel wire rope in the controller and the drag hook and the arcus costarum drag hook of front end thereof, it is characterized in that: said controller has a cylindrical housings, both sides are arranged with circular hole on it, be fitted with irreversible control in one of them circular hole, this irreversible control is to be cylindrical shell and interior plunger tip thereof by front end for the cone rear end, the locking steel ball in the plunger tip and the top spring of plunger tip rear end, the end cap of top spring catch and outer casing back is formed.

Plunger tip in the said irreversible control, its center is shaped on the through hole that can pass steel wire rope, before the plunger tip, the back is cylindrical, match and can freely move forward and backward for taper and with the cone inwall of shell in the middle part, evenly to be shaped on angle along cross section be three radial holes of 120 ° to the tapering part at this plunger tip middle part simultaneously, aforesaid locking steel ball is housed respectively in three radial holes, when the steel wire penetrating plunger tip just through the gap between three locking steel balls, make three locking steel balls compress steel wire rope simultaneously by the tapered slope of the cone inwall on plunger tip and the shell thereof when spurring steel wire rope forward and lock, pulling back steel wire rope then can freely pass through, when needs are gone here and there steel wire rope forward, plunger tip can be pressed backward, three locking steel balls are entered in separately the radial hole automatically, and this is to going here and there steel wire rope.

This utility model is answered sterilization before using, and often with formaldehyde fumigation, also can adopt other method sterilization certainly.During concrete the use, at first cramp bar should be plugged in the limit frame socket of operation table or platform, and adjust in a certain correct position; Screwing knob fixes, wherein the height of cramp bar can be adjusted with patient's thorax thickness, then irreversible control is put into intravital any one the circular hole place of circular cylindrical shell, to enclose to encircle from one section steel wire rope one that the extension of irreversible control rear end is drawn simultaneously and put into cylindrical housings, and close the lid, at this moment, steel wire rope that the irreversible control front end is drawn and drag hook thereof place on the circular hole of arcus costarum drag hook rear end of surgical patient, according to the tension degree that operating position is regulated steel wire rope, this utility model is that two covers use simultaneously usually.

This utility model is compared with prior art, has simple in structurely, processes easily and assembles, and volume is little, the side of occupation of land not can unidirectional control self-locking, uses easy to adjustly, can remain on a certain position to the arcus costarum pull-up lastingly equably, the Enlargement open country, time saving and energy saving, reduced characteristics such as labor intensity.

Operating position graph of a relation when Fig. 1 is this utility model use.

Fig. 2 is this utility model overall appearance sketch map.

Fig. 3 is the structure chart of this utility model irreversible control.

Among the figure: 1 arcus costarum drag hook, 2 circular holes (arcus costarum drag hook circular hole), 3 drag hooks, 4 steel wire ropes, 5 plunger tips, 6 shells (being the shell of irreversible control), 7 cylindrical housings, 8 cramp bars, the other socket of 9 operation tables (or platform), 10 knobs, 11 operation tables or the other frame of platform, 12 radial holes, 13 locking steel balls, 14 top springs, 15 top spring catch, 16 end caps, 17 through holes, 18 circular holes, 19 lids.

Cui embodiment of the present utility model is shown in Fig. 1-4.A kind of unidirectional control arcus costarum pulling device, comprise and to draw together the controller that is contained in the other socket 9 of operation table and can passes through knob 10 fixed cramp bars 8 and upper end setting thereof, and by the steel wire rope 4 in the controller and the drag hook 3 and the arcus costarum drag hook 1 of front end thereof, it is characterized in that: said controller has a cylindrical housings 7, both sides are arranged with circular hole 18 on it, be fitted with irreversible control in one of them circular hole 17, this irreversible control is to be cylindrical shell 6 and interior plunger tip 5 thereof by front end for the cone rear end, the locking steel ball 13 in the plunger tip 5 and the top spring 14 of plunger tip 5 rear ends, the end cap 16 of top spring catch 15 and shell 6 rear ends is formed.Plunger tip 5 in the said irreversible control, its center are shaped on the through hole 17 that can pass steel wire rope 4; Plunger tip 5 is forward and backward to be cylindrical; Match and can freely move forward and backward for taper and with the cone inwall of shell 6 in the middle part, evenly to be shaped on angle along cross section be three radial holes 12 of 120 ° to the tapering part at these plunger tip 5 middle parts simultaneously, aforesaid locking steel ball 13 is housed respectively in three radial holes 12, when steel wire rope 4 passes plunger tip 5 just through the gap of 13 of three locking steel balls, make three locking steel balls 13 compress steel wire rope 4 simultaneously by the tapered slope of the cone inwall on plunger tip 5 and the shell 6 thereof when spurring steel wire rope 4 forward and lock, pull back steel wire rope 4 and then can freely pass through, when needs are gone here and there steel wire rope 4 forward; Plunger tip 5 can be pressed backward; Three locking steel balls 13 are entered in separately the radial hole 12 automatically; At this moment can go here and there steel wire rope 4.

Claims

1, a kind of unidirectional control arcus costarum pulling device, comprise the controller that can be inserted in the other socket of operation table and can be provided with by fixed cramp bar of knob and upper end thereof and by the steel wire rope in the controller and the drag hook and the arcus costarum drag hook of front end thereof, it is characterized in that: said controller has a cylindrical housings, both sides are arranged with circular hole on it, be fitted with irreversible control in one of them circular hole, this irreversible control is to be cylindrical shell and interior plunger tip thereof by front end for the cone rear end, the locking steel ball in the plunger tip and the top spring of plunger tip rear end, the end cap of top spring catch and outer casing back is formed.

2, unidirectional control arcus costarum pulling device as claimed in claim 1, it is characterized in that said plunger tip center is shaped on the through hole that can pass steel wire rope, before the plunger tip, the back is cylindrical, match and can freely move forward and backward for taper and with the cone inwall of shell in the middle part, evenly to be shaped on angle along cross section be three radial holes of 120 ° to the tapering part at this plunger tip middle part simultaneously, aforesaid locking steel ball is housed respectively in three radial holes, when the steel wire penetrating plunger tip just through the gap between three locking steel balls, make three locking steel balls compress steel wire rope simultaneously by the tapered slope on plunger tip and the shell when spurring steel wire rope forward and lock, pull back steel wire rope and then can freely pass through.