CN102357040A - Pull rod type gall bladder and bile duct stone extractor - Google Patents

Abstract

The invention relates to a pull rod type gall bladder and bile duct stone extractor which comprises a spring outer pipe, a resin guide pipe, an operation handle and a stone extracting device. The stone extractor is characterized in that: a pull rod is arranged inside the resin guide pipe; the handle rod of the operation handle is in a hollow structure with one sealed end and one opened end; a moving groove is also formed on the handle rod; a moving control ring is arranged on the handle rod; the moving control ring can move forward and backward along the moving groove, thereby driving the pull rod to move forward and backward; the stone extracting device is composed of a slider, a fixing seat and a cover net connected between the slider and the fixing seat; the cover net is composed of multiple fine steel wires which are uniformly arranged around the pull rod, broken at the middle parts and covered by connection covers, and then connected with a spring sheet; and the opening and closing of the cover net are achieved through the forward and backward movement of the pull rod. By using the stone extractor, the defects of the existing stone extracting operation are overcome; and the stone extractor has the characteristics of agile motion, good operation effect, simplicity in design, simplicity and convenience in control, safety, reliability and the like.

Description

Rod-pulling type gallbladder, bile duct dislodger

One, technical field

The present invention relates to a kind of operating theater instruments of removing calculus, especially a kind of dislodger that is used for gallbladder, bile duct.

Two, background technology

At present, detect at Minimally Invasive Surgery treatment gallbladder, calculus of bile duct and to get in the stone operation, lack special-purpose gallbladder, bile duct dislodger always.In actual operation, the clinician mainly relies on stone extraction basket to get stone, but stone extraction basket easy slippage when extracting calculus, especially for less calculus; When running into bigger calculus, stone extraction basket can't stretch and entangle calculus, and particularly when the calculus incarceration was in gallbladder or bile duct, stone extraction basket can't be crossed calculus, will cause getting the stone overlong time like this, even failure.After adopting stone extraction basket to get the stone failure, just use traditional abdominal apparatus to carry out gallbladder, calculus of bile duct is removed, or utilize expensive rock crushing plant to carry out re-using stone extraction basket behind the rubble and get stone, perhaps direct transfer abdominal.In above-mentioned operation practice, often, not only increased patient's misery because of getting the stone transfer abdominal of failing, and again just the patient paid expensive medical expense.

Three, summary of the invention

The objective of the invention is to solve above-mentioned existing deficiency of getting the stone operation, a kind of rod-pulling type gallbladder, bile duct dislodger are provided, characteristics such as make it have flexibly movable and good operation effect, simplicity of design, control be easy, safe and reliable.

The objective of the invention is to adopt following scheme to realize: a kind of rod-pulling type gallbladder, bile duct dislodger, it comprises spring outer tube, resin duct, operating grip and stone taking device, is characterized in: a pull bar is arranged in the said resin duct; The handle bar of said operating grip is end sealing, and the hollow structure that an end is got through also has shifting chute on the handle bar, and mobile control loop is housed on the handle bar can move forward and backward along shifting chute, and the drive pull bar also moves forward and backward; Said stone taking device by slide block, holder and be connected slide block and holder between the cover net constitute; The cover net is evenly arranged around pull bar by some, middle part is broken off the seizing wire that connects with spring leaf behind the cover upper joint sleeve and is constituted, and realizes the folding of cover net through moving forward and backward of said pull bar.

Two halves before and after the seizing wire of above-mentioned cover net is divided into; Preceding half seizing wire one end is fixed on the slide block periphery; Later half seizing wire one end is fixed on the holder periphery; Slide block is corresponding one by one with seizing wire on the holder, and connects with spring leaf between corresponding two seizing wires, on the seizing wire of junction, adapter sleeve is housed; Holder is fixed on the resin duct port, at the holder middle part aperture is arranged; Above-mentioned pull bar front end is overlapped in the net by the aperture entering at holder middle part after passing resin duct, and fixing with the slide block middle part.Like this, the moving forward and backward of pull bar drives slide block and moves forward and backward, and the moving forward promptly away from holder of slide block makes that spring leaf is stretching, inwardly draw at cover net middle part, and moving backward of slide block promptly relies on holder, and spring leaf compression, cover net middle part are outwards opened.

Above-mentioned mobile control loop is contained in the operating grip periphery; And can move forward and backward along shifting chute, above-mentioned back end of tie rod is fixed with mobile control loop after penetrating operating grip handle bar, and the drive pull bar that moves forward and backward that moves control loop also moves forward and backward; And then drive that slide block relies on or away from holder; Make cover net middle part open or draw in, overlap net like this and just can realize opening and closing movement, reach the purpose of getting stone.

Above-mentioned spring outer tube afterbody is with reinforcing sleeve outward, and reinforcing sleeve also has fixed muffle to be connected with operating grip outward.

The present invention adopts the beneficial effect of such scheme to be: 1) in getting the stone operation, use this gallbladder, bile duct dislodger can reduce the liver injury bile duct, alleviated patient's misery, made things convenient for doctor's operation; 2) for stretching evenly, the cover calculus is firm, gets the cubic meter of stone just, has improved the work efficiency of surgical staff widely in use for this gallbladder, bile duct dislodger.

Four, description of drawings

Fig. 1 is the front view of rod-pulling type gallbladder of the present invention, bile duct dislodger;

Fig. 2 is the enlarged drawing of node I among Fig. 1, and this moment, the cover net drew in;

Fig. 3 is the A-A cutaway view among Fig. 1

Fig. 4 is the B-B cutaway view among Fig. 1;

Fig. 5 is the enlarged drawing of node I among Fig. 4, and overlap net and open this moment;

Fig. 6 is the C-C cutaway view among Fig. 2.

Label declaration in each width of cloth accompanying drawing is following:

The 1-slide block; 2-overlaps net; The 2a-adapter sleeve; The 2b-spring leaf; 3-spring outer tube; The 4-reinforcing sleeve; The 5-fixed muffle; The 6-pull bar; The 7-shifting chute; 8-moves control loop; The 9-operating grip; The 9a-finger ring; The 10-holder; The 11-resin duct.

Five, the specific embodiment

Below in conjunction with accompanying drawing the specific embodiment of rod-pulling type gallbladder of the present invention, bile duct dislodger is described in detail.

As shown in Figure 1; A kind of rod-pulling type gallbladder, bile duct dislodger; It comprisespull bar 6 in the springouter tube 3, resin duct 11, resin duct 11, operating grips 9 and byslide block 1, holder 10 and be connectedslide block 1 and holder 10 between the stone taking device that constitutes ofcover net 2, stone taking device is realized 2 foldings of cover net through moving forward and backward ofpull bar 6.

Like Fig. 1,3, shown in 4, the handle bar of operating grip 9 is end sealing, the hollow structure that an end is got through; At handle bar rearportion finger ring 9a is arranged, on the handle bar, also have shiftingchute 7, on the handle bar, be peripherally equipped with and movecontrol loop 8, it can move forward and backward along shiftingchute 7.

Like Fig. 2,5, shown in 6,cover net 2 is made up of the some seizing wires of evenly arranging around pull bar 6.Two halves before and after the seizing wire ofcover net 2 is divided into; Preceding half seizing wire one end is fixed onslide block 1 periphery; Later half seizing wire one end is fixed on holder 10 peripheries;Slide block 1 is corresponding one by one with seizing wire on the holder 10, and connects with spring leaf 2b between corresponding two seizing wires, and adapter sleeve 2a is housed on the seizing wire of junction.Holder 10 is fixed on resin duct 11 ports, at holder 10 middle parts aperture is arranged.

Like Fig. 2, shown in 5, pullbar 6 rear ends penetrate behind the handle bar of operating grip 9 withmobile control loop 8 fixing, and its front end passes resin duct 11 backs and got in thecover net 2 by the aperture at holder 10 middle parts, and fixes withslide block 1 middle part.

Like this, like Fig. 1, shown in 4, thedrive pull bar 6 that moves forward and backward that movescontrol loop 8 also moves forward and backward; Theslide block 1 that moves forward and backward and then drive ofpull bar 6 moves forward and backward, and the moving forward promptly away from holder 10 ofslide block 1 makes that spring leaf 2b is stretching, inwardly draw at cover net 2 middle parts; Sketch map when Fig. 2 is cover net 2 inside gatherings in; Moving backward ofslide block 1 promptly relies on holder 10, and spring leaf 2b compression, cover net 2 middle parts are outwards opened, and Fig. 5 is the sketch map of cover net when outwards opening.

As shown in Figure 5, springouter tube 3 afterbodys are with reinforcingsleeve 4 outward, and reinforcingsleeve 4 outer fixedmuffles 5 in addition are connected with operating grip 9.

During use, hold and movecontrol loop 8 andfinger ring 9a, in the biliary tract that stretches into the patient with rod-pulling type gallbladder, bile duct dislodger; Move to the calculus place,control loop 8 is moved in pulling then, makes it do motion backward; Drivepull bar 6,slide block 1 move backward, and this moment, outwards opened at cover net 2 middle parts, gently rotating tension bar formula gallbladder, bile duct dislodger; Calculus is got in thecover net 2 of stone taking device, after calculus gets intocover net 2, promptly promote to movecontrol loop 8, it is travelled forward; Drivepull bar 6,slide block 1 travel forward, and this moment, the inside gathering in cover net 2 middle parts encased calculus, can calculus taken out of biliary tract or squeezed broken.

Claims (4)

1. a rod-pulling type gallbladder, bile duct dislodger, it comprises spring outer tube (3), resin duct (11), operating grip (9) and stone taking device, it is characterized in that: a pull bar (6) is arranged in the said resin duct (11); The handle bar of said operating grip (9) is end sealing, and the hollow structure that an end is got through also has shifting chute (7) on the handle bar, and mobile control loop (8) is housed on the handle bar can move forward and backward along shifting chute (7), and drive pull bar (6) also moves forward and backward; Said stone taking device by slide block (1), holder (10) and be connected slide block (1) and holder (10) between cover net (2) constitute; Cover net (2) is evenly arranged around pull bar (6) by some, middle part is broken off cover upper joint sleeve (2a) back and is constituted with the seizing wire that spring leaf (2b) connects, and realizes the folding of cover net (2) through moving forward and backward of said pull bar (6).

2. rod-pulling type gallbladder according to claim 1, bile duct dislodger; It is characterized in that: two halves before and after the seizing wire of said cover net (2) is divided into; Before half seizing wire one end be fixed on slide block (1) periphery, later half seizing wire one end is fixed on holder (10) periphery, slide block (1) is corresponding one by one with seizing wire on the holder (10); And connect with spring leaf (2b) between corresponding two seizing wires, adapter sleeve (2a) is housed on the seizing wire of junction; Holder (10) is fixed on resin duct (11) port, at holder (10) middle part aperture is arranged; Said pull bar (6) front end passes in the aperture entering cover net (2) of resin duct (11) back by holder (10) middle part, and fixing with slide block (1) middle part.

3. rod-pulling type gallbladder according to claim 1, bile duct dislodger; It is characterized in that: said mobile control loop dress (8) is in operating grip (9) periphery; And can move forward and backward along shifting chute (7); Said pull bar (6) rear end penetrates behind operating grip (9) the handle bar fixing with mobile control loop (8), moves moving forward and backward of control loop (8) and drives pull bar (6) and also move forward and backward, and then drive that slide block (1) relies on or away from holder (10).

4. rod-pulling type gallbladder according to claim 1, bile duct dislodger is characterized in that: said spring outer tube (3) afterbody is with reinforcing sleeve (4) outward, and reinforcing sleeve (4) is outer to also have fixed muffle (5) to be connected with operating grip (9).

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