CN110786912A - Stone extractor for hepatobiliary surgery - Google Patents

Abstract

The invention discloses a stone extractor for hepatobiliary surgery. The main point of the technical solution is that it includes a stone extractor body, and the stone extractor body includes a stone extractor tube, a first arc-shaped clip and a second arc-shaped clip, a control part, and a first handle. and the second handle, the length direction of the stone extraction tube and the length direction of the first arc clamp and the second arc clamp are arranged in an L-shaped structure, the first arc clamp is hinged with a number of first extension rods, and the second arc clamp Several second extension rods are hinged on the upper part, a first gap is set between two adjacent first extension rods, a second gap is set between two adjacent second extension rods, a pulling rope is arranged in the stone extraction pipe, and one end of the pulling rope is arranged. Several bifurcated ropes are fixedly connected to the inner side walls of all the first extension rods and the second extension rods, and the first extension rods and the first arc-shaped clips and between the second extension rods and the second arc-shaped clips are both arranged With a reset device, the stone extractor can easily and accurately grasp the stones in the biliary tract.

Description

A stone extractor for hepatobiliary surgery

technical field

The invention relates to the technical field of medical devices, and more particularly, to a stone extractor for hepatobiliary surgery.

Background technique

Solid lumps, that is, stones, may be formed in the lumen of the catheter in the human body or in the cavity of the luminal organ due to poor personal living habits. Stones can cause lumen obstruction, affecting the drainage of fluid from the affected organ, resulting in symptoms such as pain, bleeding, or secondary infection.

Existing medical solutions vary according to the treatment of stones in different parts. The treatment plan for stones in the same part should be comprehensively decided according to factors such as the size of the stone and the physical condition of the patient. The whole is divided into stone crushing and stone extraction. Stone crushing is generally divided into sonic lithotripsy and laser lithotripsy. Sonic lithotripsy is relatively safe and convenient, but when the stone is too large, sonic lithotripsy cannot achieve a good therapeutic effect. Lithotripsy is not suitable for patients with biliary calculi. Laser lithotripsy uses holmium laser lithotripsy. The holmium laser has the disadvantage of low precision and requires multiple lithotripsy and stone removal operations. Another treatment method is minimally invasive lithotripsy. A small mouth is inserted into the stone extraction tool for stone extraction. This method has the advantages of minor trauma, less bleeding, lower complications, saving operation costs, and easy to master operation skills.

The existing stone extraction method is to remove biliary stones through a stone extraction basket. In minimally invasive surgery, when the stone is large, a stone extraction basket that can be opened to form a larger grasping space needs to be inserted. The angle of the stone-removing basket needs to be adjusted once and the stone-removing basket needs to be stretched as far as possible before grabbing, resulting in cumbersome operations, and even failure of stone extraction often occurs.

SUMMARY OF THE INVENTION

In view of the deficiencies in the prior art, the purpose of the present invention is to provide a stone extractor for hepatobiliary surgery, which can conveniently and accurately grasp the stones in the bile duct.

In order to achieve the above purpose, the present invention provides the following technical solutions: a stone extraction tool for hepatobiliary surgery, comprising a stone extraction tool body, and the stone extraction tool body includes a stone extraction tube arranged in a hollow cylindrical structure for clamping the affected part. A first arc-shaped clip and a second arc-shaped clip for stones, and a control part for controlling the closing or opening of the first arc-shaped clip and the second arc-shaped clip, and a control part for manually pulling the control part to control the first arc-shaped clip The first handle and the second handle that are closed or opened with the second arc clamp, the length direction of the stone extraction tube and the length direction of the first arc clamp and the second arc clamp are arranged in an L-shaped structure, and the first handle and When the second handle is closed, the control part can pull the first arc clip and the second arc clip to close;

A plurality of first extension rods are hinged on the end surface of the first arc-shaped clip away from the control part, the first extension rods are extended along the length direction of the first arc-shaped clip, and the second arc-shaped clip is away from the control part. A plurality of second extension rods are hinged on the end surface, the second extension rods are extended along the length direction of the second arc clamp, and a first gap for embedding the second extension rods is provided between two adjacent first extension rods. A second gap for the first extension rod to be embedded is provided between two adjacent second extension rods, a pulling rope is arranged in the stone extraction tube, and one end of the pulling rope is connected to all the first extension rods and the first extension rods through several bifurcated ropes. The inner side walls of the two extension rods are fixedly connected, and the other end of the pull rope protrudes from the opening of the stone extraction tube. During the pulling of the pull rope, the first extension rod and the second extension rod are gradually embedded into the second gap and the first gap until the third An extension rod and a second extension rod are embedded in the clamping areas of the first arc clip and the second arc clip, between the first extension rod and the first arc clip, and between the second extension rod and the second arc clip A reset device is arranged between the arc clips, and the reset device can reset and open the first extension rod and the second extension rod and reset the draw rope when the pull rope is released.

The present invention is further configured as follows: the length direction of the stone extraction tube and the length direction of the first handle and the second handle are arranged in an L-shaped structure, and the stone extraction tool body is arranged in a Z-shaped structure.

The present invention further provides that: the first handle and the second handle are both arranged in an arc structure, the middle part of the first handle and the middle part of the second handle are hingedly arranged through a first hinge part, and the first handle is connected to the stone extraction The tube is fixedly connected, and the control component includes a control rope arranged in a Y-shaped structure in the stone extraction tube, and the two ends of the control rope are respectively fixedly connected with one end of the first arc-shaped clip and the second arc-shaped clip close to the stone extraction tube. , the other end of the control rope is fixedly connected with the upper end of the second handle, and the upper end of the second handle can pull the control rope to move outward during the rotation of the second handle along the first hinge part toward the first handle, so that the control rope drives the first handle An arc-shaped clip and a second arc-shaped clip are closed, and a return spring is arranged between the first arc-shaped clip and the second arc-shaped clip to reset the first arc-shaped clip and the second arc-shaped clip to open, and release the first arc-shaped clip and the second arc-shaped clip. When the two handles are used, the return spring can open the first arc clip and the second arc clip and reset the control rope.

The present invention is further configured as follows: the first arc-shaped clip and the second arc-shaped clip are movably connected with the stone extraction tube through movable parts, and the stone extraction tube is provided with a function for controlling the first arc-shaped clip and the second arc-shaped clip along the stone extraction tube. The movable rod that rotates in the length direction, the first arc-shaped clip and the second arc-shaped clip can rotate along the length direction of the stone extraction tube in the process of pushing the movable rod until the length direction of the first arc-shaped clip and the second arc-shaped clip is the same as that of the stone extraction tube. The length direction is parallel, when the movable rod is released, the movable part can restore the first arc clamp and the second arc clamp so that the length direction of the first arc clamp and the second arc clamp is perpendicular to the length direction of the stone extraction tube.

The present invention is further provided as follows: the middle part of the first handle and the middle part of the second handle are hingedly arranged through a first hinge part, the first handle and the second handle are hinged crosswise, and the first hinge part is externally connected with a connection Bracket, the first hinge part is fixedly connected with the stone extraction tube through the connection bracket, the control part includes a connecting rod arranged in the stone extraction tube, the connecting rods are provided with two and are arranged in parallel, and one end of the connecting rod is connected to the stone extraction tube. The upper end of the first handle is fixedly connected and the other end is fixedly connected with one end of the second arc-shaped clip close to the stone extraction tube, and one end of the other connecting rod is fixedly connected with the upper end of the second handle, and the other end is fixedly connected with the first arc-shaped clip at one end of the stone extraction tube. Fixed connection.

The present invention further provides that: a measuring device for measuring the distance between the first handle and the second handle is arranged between the first handle and the second handle.

The present invention is further provided that: one end of the pull rope close to the first handle is provided with a pull ring which is convenient for the user's fingers to be inserted, and the pull ring is located at the upper end of the first handle and the second handle.

The present invention is further provided as follows: a position corresponding to the first extension rod on the inner side wall of the first arc-shaped clip is provided with a first insertion groove for embedding the first extension rod when the first extension rod is closed; The positions of the two extension rods are provided with second insertion grooves for embedding when the second extension rods are closed.

The present invention is further provided that: the first embedding groove and the second embedding groove are both provided with a channel for the bifurcated rope to pass through, and the channel extends along the length direction of the first arc clip and the second arc clip, so The other opening of the channel is communicated with the inner cavity of the stone extraction tube.

To sum up, the present invention has the following beneficial effects: the L-shaped structure is arranged when the stone extractor extends into the affected part to grasp the calculus, which can effectively ensure the operating vision of the surgeon, thereby achieving the effect of convenient grasping; The design of the first extension rod and the second extension rod can play an extra stretch when grabbing a long stone. The stones in the clamping area of the first arc-shaped clip and the second arc-shaped clip have a fixing effect, thereby ensuring the stability when the stones are subsequently taken out of the body; the design of the first gap and the second gap can make the first extension When the rod and the second extension rod are fitted, they can be fitted like ten fingers, that is, to ensure sufficient airtightness when fitting, and also to ensure that the first extension rod and the second extension rod will not touch and hinder each other; The first extension rod and the second extension rod are retracted into the clamping area of the first arc-shaped clip and the second arc-shaped clip by manually controlling the pulling rope before extending in, so that the effective volume of the stone extractor is reduced, which is more convenient After extending in, and releasing the control of the pull rope after extending, the reset device resets the first extension rod and the second extension rod into the unfolded to-be-clamped state, realizing the effect of freely changing the effective volume.

Description of drawings

Fig. 1 is the structural representation of the stone extractor whose control part is a control rope;

Fig. 2 is the structural representation under the state that the control part is the stone extractor of the control rope extending into;

Fig. 3 is the structural representation of the stone extractor whose control part is a connecting rod;

Fig. 4 is the working schematic diagram of the first arc clip and the second arc clip closed and extended;

Fig. 5 is a working schematic diagram when the first arc-shaped clip and the second arc-shaped clip are opened.

Reference numerals: 1. Stone extractor body; 11. Stone extraction tube; 111, Pull rope; 112, Bifurcated rope; 113, Pull ring; gap; 123, the first embedding groove; 1231, the channel; 13, the second arc clamp; 131, the second extension rod; 132, the second gap; 133, the second embedding groove; 14, the control part; 141, the control rope 142, connecting rod; 15, first handle; 151, first hinge; 152, connecting bracket; 16, second handle; 17, return spring; 2, measuring device; 3, movable rod.

Detailed ways

The present invention will be described in further detail below with reference to the accompanying drawings and embodiments. Wherein the same parts are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "bottom" and "top" "Face", "inner" and "outer" refer to directions toward or away from the geometric center of a particular part, respectively.

1 to 5, in order to achieve the above purpose, the present invention provides the following technical solutions: a stone extractor for hepatobiliary surgery, comprising a stone extractor body 1, and the stone extractor body 1 includes a hollow cylindrical structure set The stone extraction tube 11, the first arc-shaped clip 12 and the second arc-shaped clip 13 for holding the stones in the affected part, and the control part 14 for controlling the closing or opening of the first arc-shaped clip 12 and the second arc-shaped clip 13 , and the first handle 15 and the second handle 16 for manually pulling the control part 14 to control the closing or opening of the first arc clamp 12 and the second arc clamp 13, the length direction of the stone taking tube 11 and the first arc clamp 12 and the length direction of the second arc-shaped clip 13 are arranged in an L-shaped structure, and the L-shaped structure is arranged when the stone extractor extends into the affected part to grasp the stone, which can effectively ensure the operating vision of the surgeon, so as to facilitate grasping. In this way, when the first handle 15 and the second handle 16 are closed, the control part 14 can pull the first arc clamp 12 and the second arc clamp 13 to close;

A plurality of first extension rods 121 are hinged on the end surface of the first arc-shaped clip 12 away from the control part 14 , the first extension rods 121 are extended along the length direction of the first arc-shaped clip 12 , and the second arc-shaped clip 13 is away from the control part 14 . A plurality of second extension rods 131 are hinged on the end surface of the second extension rod 131. The second extension rods 131 are extended along the length direction of the second arc-shaped clip 13. The first extension rods 121 and the second extension rods 131 are designed to catch longer When the stone is removed, it plays an extra elongation role. When grasping an appropriate stone, the first extension rod 121 and the second extension rod 131 can be recovered, and the first arc-shaped clip 12 and the second arc-shaped clip 13 can be clamped. The stones in the area have a fixing effect, thereby ensuring the stability of the subsequent removal of the stones from the body. In addition, when grasping the stones with irregular shapes, the first arc clip 12 and the second arc can also be used. The clip 13 holds it firmly, a first gap 122 for embedding the second extension rods 131 is provided between two adjacent first extension rods 121, and a first gap 122 for the second extension rods 131 to be embedded is provided between two adjacent second extension rods 131. The second gap 132 in which the extension rod 121 is embedded, the design of the first gap 122 and the second gap 132 can make the first extension rod 121 and the second extension rod 131 fit like a ten-finger fit, that is, to ensure that there is a Sufficient airtightness also ensures that the first extension rod 121 and the second extension rod 131 will not touch each other, and mutual obstruction occurs. A pull rope 111 is provided in the stone extraction tube 11, and one end of the pull rope 111 passes through several bifurcated ropes. 112 is fixedly connected with the inner side walls of all the first extension rods 121 and the second extension rods 131, the other end of the pull rope 111 protrudes from the opening of the stone extraction tube 11, and the first extension rod 121 and the second extension rod in the process of pulling the pull rope 111. 131 is gradually embedded into the second gap 132 and the first gap 122 until the first extension rod 121 and the second extension rod 131 are embedded in the clamping area of the first arc clip 12 and the second arc clip 13, and the pull rope 111 The design of the wire control method plays a synchronous control on all the first extension rods 121 and the second extension rods 131. This method is not only convenient to control, but also can play a flexible control effect by manually controlling the pull rope 111. The first extension rod A reset device is provided between 121 and the first arc clamp 12, and between the second extension rod 131 and the second arc clamp 13. When the pull rope 111 is released, the reset device can connect the first extension rod 121 and the second extension rod 121 to the second arc clamp 13. The extension rod 131 is reset and opened and the pull rope 111 is reset. Through the design of the reset device, the first extension rod 121 and the second extension rod 131 are retracted to the first arc-shaped clip 12 by manually controlling the pull rope 111 before extending in. and the clamping area of the second arc-shaped clamp 13, so that the effective volume of the stone extractor is reduced, so that it is more convenient to stretch in, and after stretching in, the control of the pulling rope 111 is released, and the reset device pushes the first extension rod 121 And the second extension rod 131 is reset to become the unfolded state to be clamped, and the reset device can be a torsion spring provided at the hinge.

In addition, because the length direction of the stone extraction tube 11 and the length direction of the first arc-shaped clip 12 and the second arc-shaped clip 13 are arranged in an L-shaped structure, the design can grasp the stones in the affected area from the side, and grasp the stones from the front. In other words, the distance between the stone and the first arc-shaped clip 12 and the second arc-shaped clip 13 can be seen more intuitively, thereby making it easier to move and locate, and the L-shaped design is matched with the first arc-shaped clip. The design of the clip 12 and the second arc clip 13 is compared with the existing stone extraction basket, which does not need to adjust the angle multiple times. After moving in place, the first arc clip 12 and the second arc clip 13 are closed directly It can directly clamp and grasp the stone, which is easy to operate and firm to grasp.

The length direction of the stone extracting tube 11 and the length direction of the first handle 15 and the second handle 16 are arranged in an L-shaped structure, the stone extractor body 1 is arranged in a Z-shaped structure, and the stone extractor is designed in a Z shape as a whole, mainly in the clipping process. It is ensured that the visual field of the clamping part is sufficiently open, and the first handle 15 and the second handle 16 are operated without disturbing the visual field of the clamping part, thereby ensuring the smooth operation of the operation.

The first handle 15 and the second handle 16 are both arranged in an arc-shaped structure, the middle part of the first handle 15 and the middle part of the second handle 16 are hingedly arranged through the first hinge part 151, the first handle 15 is fixedly connected with the stone extraction tube 11, and the control The component 14 includes a control rope 141 arranged in a Y-shaped structure in the stone extraction pipe 11, and the two ends of the control rope 141 are respectively fixedly connected with one end of the first arc clamp 12 and the second arc clamp 13 close to the stone extraction pipe 11, The other end of the control rope 141 is fixedly connected with the upper end of the second handle 16 , and the upper end of the second handle 16 can pull the control rope 141 to move outward during the rotation of the second handle 16 along the first hinge portion 151 toward the first handle 15 . The control rope 141 drives the first arc-shaped clip 12 and the second arc-shaped clip 13 to close. When the second handle 16 is released, the return spring 17 can open the first arc clamp 12 and the second arc clamp 13 and reset the control rope 141 .

The first arc-shaped clamp 12 and the second arc-shaped clamp 13 are movably connected with the stone-extracting tube 11 through the movable parts, and the stone-extracting tube 11 is provided with the first arc-shaped clamp 12 and the second arc-shaped clamp 13 along the length direction of the stone-extracting tube 11. The rotating movable rod 3, the first arc-shaped clamp 12 and the second arc-shaped clamp 13 can rotate along the length direction of the stone extraction tube 11 in the process of pushing the movable rod 3 until the length of the first arc-shaped clamp 12 and the second arc-shaped clamp 13. The direction is parallel to the length direction of the stone extraction tube 11. When the movable rod 3 is released, the movable part can restore the first arc-shaped clamp 12 and the second arc-shaped clamp 13, so that the first arc-shaped clamp 12 and the second arc-shaped clamp 13. The length direction is perpendicular to the length direction of the stone extraction tube 11, and the movable part can be a torsion spring arranged between the hinged place of the first arc clip 12 and the second arc clip 13 and the stone extraction tube 11, and the movable rod 3 pushes the first An arc-shaped clip 12 and a second arc-shaped clip 13 make the length direction of the first arc-shaped clip 12 and the second arc-shaped clip 13 consistent with the length direction of the stone extraction tube 11, so that the area of the stone extraction tool is small during the protruding process. It is convenient to reach in, and after extending the movable rod 3, the first arc clip 12 and the second arc clip 13 are restored under the action of the torsion spring, so that the first arc clip 12 and the second arc clip 13 are restored. The length direction is perpendicular to the length direction of the stone extraction tube 11, and the first arc clip 12 and the second arc clip 13 and the stone extraction tube 11 are kept in an L-shaped structure, so as to ensure that the subsequent grasping process can ensure that the surgeon's surgical field is sufficient.

The design method is to control the closing of the first arc clamp 12 and the second arc clamp 13 by wire control. Since the first handle 15 is fixedly connected to the stone extraction tube 11, the control rope can only be driven by rotating the second handle 16 141 moves outward. Compared with the two handles that can be rotated, the rotation of a single handle is more accurate. When the second handle 16 moves a certain distance, the first arc clamp 12 and the second arc clamp 13 will be opened to a certain width. The other two ends of the rope 141 are fixedly connected with the ends of the first arc clamp 12 and the second arc clamp 13. When the control rope 141 moves outward, it can drive the ends of the first arc clamp 12 and the second arc clamp 13 to each other. Move closer, since the middle and lower parts of the first arc clip 12 and the second arc clip 13 are hinged, the upper ends of the first arc clip 12 and the second arc clip 13 will also be At the same time, move closer to complete the closing operation. When the stone extractor needs to be opened, just by releasing the second handle 16, the return spring 17 can stretch the first arc clamp 12 and the second arc clamp 13 apart, and pull the control rope 141 is reset for the next operation.

The middle part of the first handle 15 and the middle part of the second handle 16 are hingedly arranged by the first hinge part 151, the first handle 15 and the second handle 16 are hingedly arranged in a cross, and the first hinge part 151 is externally connected with a connecting bracket 152, and the first hinge The part 151 is fixedly connected with the stone extraction tube 11 through the connecting bracket 152. The control part 14 includes a connecting rod 142 arranged in the stone extraction tube 11. Two connecting rods 142 are provided and are arranged in parallel. The upper end of the handle 15 is fixedly connected to the other end of the second arc-shaped clamp 13 that is close to the stone extraction tube 11, and one end of the other connecting rod 142 is fixedly connected to the upper end of the second handle 16. The other end is close to the first arc-shaped clamp 12. One end of the stone extraction tube 11 is fixedly connected.

The design method is to control the closing and opening of the first arc clamp 12 and the second arc clamp 13 by lever control. Compared with the wire control, the lever control can not only manually control the closing but also manually control the opening, and has more advantages. Independent control method, and compared with wire control, the wire has a certain toughness. In the case of long-term use, the toughness of the wire will decrease, which will affect the closing situation, so the rod control is relatively more stable, in addition to The connecting rod 142 can be detachably connected with the first handle 15, the second handle 16, and the first arc clip 12 and the second arc clip 13, which facilitates the disassembly and cleaning of each device after surgery, and ensures the safety of the device. Clean and ensure medical hygiene.

A measuring device 2 for measuring the distance between the first handle 15 and the second handle 16 is provided between the first handle 15 and the second handle 16. The setting of the measuring device 2 can clearly know the distance between the first handle 15 and the second handle 16. The distance between the first arc-shaped clips 12 and the second arc-shaped clips 13 can be known through reasonable conversion, so that it is convenient for the surgeon to control the opening size of the clamping part during the operation.

One end of the pull cord 111 close to the first handle 15 is provided with a pull ring 113 that is convenient for the user's fingers to insert. The pull ring 113 is located at the upper end of the first handle 15 and the second handle 16. While controlling the first handle 15 and the second handle 16 with one hand, the user controls the first handle 15 and the second handle 16 with the thumb and the middle finger, and can control the pull ring 113 with the index finger, so as to realize the first arc with one hand. The control of the shaped clip 12, the second arc-shaped clip 13, the first extension rod 121 and the second extension rod 131 frees the other hand and facilitates the operation.

A first insertion groove 123 is provided on the inner side wall of the first arc-shaped clip 12 at a position corresponding to the first extension rod 121 for the first extension rod 121 to be embedded when the first extension rod 121 is closed, and the inner side wall of the second arc-shaped clip 13 corresponds to the second extension rod. The position of 131 is provided with a second insertion groove 133 for embedding when the second extension rod 131 is closed. The design of the first insertion groove 123 and the second insertion groove 133 can facilitate the first arc clip 12 and the second arc clip 13 Closing means that the first extension rod 121 and the second extension rod 131 can be inserted into the first insertion groove 123 and the second insertion groove 133, so that the first arc clip 12 and the second arc clip 13 can be closed tightly. , so that the effective volume of the stone extraction tool is reduced, and the insertion and extension of the clamping part are more convenient.

The first embedding groove 123 and the second embedding groove 133 are both provided with a channel 1231 through which the bifurcated rope 112 is inserted. The channel 1231 extends along the length direction of the first arc clip 12 and the second arc clip 13. An opening is communicated with the inner cavity of the stone extraction tube 11 , and the design of the channel 1231 can prevent the occurrence of mutual interference due to too many bifurcated ropes 112 .

In addition, the stone extractor can be used as a locator for a holmium laser device. First, the stone is lifted through the first arc-shaped clip 12 and the second arc-shaped clip 13, and the first extension rod 121 and the second extension rod 131. When the limit is reached, the holmium laser is extended from the inlet end of the stone extraction tube 11, and then the calculi in the clamping area are subjected to laser lithotripsy, thereby solving the problem of holmium laser lithotripsy caused by the lack of certain accuracy of the holmium laser. Practical shortcomings, and finally the broken stones can be excreted.

The above are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions that belong to the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims (9)

1. a stone extractor for hepatobiliary surgery, comprising a stone extractor body (1), characterized in that: the stone extractor body (1) includes a hollow cylindrical structure set, for clamping the stone in the affected part. an arc clamp (12) and a second arc clamp (13), and a control member (14) for controlling the closing or opening of the first arc clamp (12) and the second arc clamp (13), and a After manually pulling the control part (14) to reach the first handle (15) and the second handle (16) for controlling the closing or opening of the first arc clamp (12) and the second arc clamp (13), the stone extraction tube ( The length direction of 11) and the length direction of the first arc clamp (12) and the second arc clamp (13) are arranged in an L-shaped structure, and when the first handle (15) and the second handle (16) are closed, the control part ( 14) The first arc clamp (12) and the second arc clamp (13) can be pulled to close; A plurality of first extension rods (121) are hinged on the end surface of the first arc-shaped clamp (12) away from the control part (14), and the first extension rods (121) are along the length of the first arc-shaped clamp (12). The end surface of the second arc-shaped clip (13) away from the control part (14) is hingedly connected with a plurality of second extension rods (131), and the second extension rods (131) are arranged along the second arc-shaped clip (131). 13) is extended in the length direction, a first gap (122) for embedding the second extension rods (131) is provided between two adjacent first extension rods (121), and the space between the adjacent two second extension rods (131) A second gap (132) for embedding the first extension rod (121) is arranged between them, a pulling rope (111) is arranged in the stone extraction tube (11), and one end of the pulling rope (111) passes through a plurality of forked ropes (112) is fixedly connected to the inner side walls of all the first extension rods (121) and the second extension rods (131), the other end of the pull rope (111) protrudes from the opening of the stone extraction tube (11), pull the pull rope ( 111) During the process, the first extension rod (121) and the second extension rod (131) are gradually embedded into the second gap (132) and the first gap (122) until the first extension rod (121) and the second extension rod ( 131) is embedded in the clamping area of the first arc clamp (12) and the second arc clamp (13), between the first extension rod (121) and the first arc clamp (12), and between the first extension rod (121) and the first arc clamp (12). A reset device is provided between the two extension rods (131) and the second arc clamp (13). The reset opens and resets the pull cord (111). 2. The stone extractor for hepatobiliary surgery according to claim 1, wherein the length direction of the stone extraction tube (11) is in the same direction as the length direction of the first handle (15) and the second handle (16). The L-shaped structure is arranged, and the stone extractor body (1) is arranged in a Z-shaped structure. 3. The stone extractor for hepatobiliary surgery according to claim 2, wherein the first handle (15) and the second handle (16) are arranged in an arc structure, and the first handle (16) The middle part of 15) and the middle part of the second handle (16) are hingedly arranged through the first hinge part (151), the first handle (15) is fixedly connected with the stone extraction tube (11), and the control part (14) includes a A control rope (141) arranged in a Y-shaped structure in the stone extraction tube (11), the two ends of the control rope (141) are respectively close to the first arc-shaped clamp (12) and the second arc-shaped clamp (13) One end of the stone extraction tube (11) is fixedly connected, and the other end of the control rope (141) is fixedly connected to the upper end of the second handle (16), and the second handle (16) moves toward the first handle along the first hinge portion (151). (15) During the direction of rotation, the upper end of the second handle (16) can pull the control rope (141) to move outward so that the control rope (141) drives the first arc clamp (12) and the second arc clamp (13) to close A return spring (17) for resetting and opening the first arc clamp (12) and the second arc clamp (13) is provided between the first arc clamp (12) and the second arc clamp (13) , when the second handle (16) is released, the return spring (17) can open the first arc clamp (12) and the second arc clamp (13) and reset the control rope (141). 4. A stone extractor for hepatobiliary surgery according to claim 3, characterized in that: the first arc clamp (12) and the second arc clamp (13) pass through the movable parts and the stone extraction tube (11) Active connection, the stone extraction pipe (11) is provided with a movable rod (3) for controlling the rotation of the first arc clamp (12) and the second arc clamp (13) along the length direction of the stone extraction pipe (11), and pushes the movement During the rod (3) process, the first arc clamp (12) and the second arc clamp (13) can be rotated along the length direction of the stone extraction tube (11) until the first arc clamp (12) and the second arc clamp ( The length direction of 13) is parallel to the length direction of the stone extraction tube (11). When the movable rod (3) is released, the movable part can restore the first arc clamp (12) and the second arc clamp (13) so that the first arc clamp (12) and the second arc clamp (13) are restored. The length direction of the arc clamp (12) and the second arc clamp (13) is perpendicular to the length direction of the stone extraction pipe (11). 5. The stone extractor for hepatobiliary surgery according to claim 2, wherein the middle part of the first handle (15) and the middle part of the second handle (16) are hinged through the first hinge part (151) Arrangement, the first handle (15) and the second handle (16) are cross hinged, the first hinge part (151) is externally connected with a connecting bracket (152), and the first hinge part (151) is connected by The bracket (152) is fixedly connected with the stone extraction tube (11), the control component (14) includes a connecting rod (142) arranged in the stone extraction tube (11), and the connecting rods (142) are provided with two and parallel Set, one end of one connecting rod (142) is fixedly connected with the upper end of the first handle (15) and the other end is fixedly connected with one end of the second arc clamp (13) close to the stone extraction tube (11), and the other connecting rod (142 ) is fixedly connected with the upper end of the second handle (16) and the other end is fixedly connected with the end of the first arc clamp (12) close to the stone extraction tube (11). 6. The stone extractor for hepatobiliary surgery according to claim 5, characterized in that: between the first handle (15) and the second handle (16), a measuring first handle (15) and a A device (2) for measuring the distance between two handles (16). 7. The stone extractor for hepatobiliary surgery according to claim 1, characterized in that: one end of the pull rope (111) close to the first handle (15) is provided with a pull ring that is convenient for the user's fingers to insert (113), the pull ring (113) is located at the upper end positions of the first handle (15) and the second handle (16). 8. A stone extractor for hepatobiliary surgery according to claim 1, characterized in that: a position corresponding to the first extension rod (121) on the inner side wall of the first arc clamp (12) is provided with a first extension rod (121). A first embedding groove (123) inserted when the rod (121) is closed, and a position corresponding to the second extension rod (131) on the inner side wall of the second arc clip (13) is provided for the second extension rod (131) The second insertion groove (133) to be inserted when closed. 9 . The stone extractor for hepatobiliary surgery according to claim 7 , wherein the first embedding groove ( 123 ) and the second embedding groove ( 133 ) are both provided with a bifurcation rope ( 112 ). 10 . An interpenetrating channel (1231), the channel (1231) is extended along the length direction of the first arc-shaped clip (12) and the second arc-shaped clip (13), and another opening of the channel (1231) is connected to the stone extraction tube ( 11) The inner cavity is connected.

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