Object taking device under laparoscope

Abstract

The utility model relates to a laparoscope lower fetching device which comprises a chuck, shell cavities, an adjusting rod, a handle and a sleeve, the front end of the adjusting rod is hinged to a pair of shell cavities, the rear end of the adjusting rod is connected with the handle, the adjusting rod is arranged in the sleeve, and the handle controls the pair of shell cavities to be opened or closed through the adjusting rod; the pair of chucks are arranged in the pair of shell cavities, a driving mechanism for driving the pair of chucks to be opened or closed is further arranged in the sleeve, and the pair of chucks further stretch out of or retreat back to the shell cavities through the driving mechanism. The laparoscope clamp has the advantages that the shell cavity structure is adopted, the clamp head is sealed in the shell cavity structure, accurate clamping of various small articles such as suture needles, clamps, small tissues or stones under a laparoscope can be achieved through the clamp head, the clamping process is more stable due to the arrangement of the clamp head, and the articles are not prone to slipping or being damaged; and the articles are effectively prevented from falling or collapsing in the outward moving process.

Description

Technical Field

[0001] The utility model relates to the field of medical instruments, in particular to a laparoscopic object remover. Background Art

[0002] Laparoscopic technology is a modern minimally invasive surgical technology. Laparoscopic surgery is becoming more and more mature. Its huge advantages and the gradual expansion of its scope of application have made laparoscopic surgery widely used in the medical community. Related abdominal instruments for laparoscopic surgery have also emerged. Laparoscopic graspers are the most important type of instrument. During the operation, graspers are needed to operate and grasp various small items under the laparoscope, such as sutures, clips, small tissues or stones, to complete the surgical operation. However, in the process of taking out the items after grasping them with ordinary graspers, it is easy for the grasped objects to fall or collapse. The scattered objects are not easy to find, time-consuming and labor-intensive, and delay the surgical progress. Therefore, a new type of retriever is designed. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a laparoscopic object remover to solve the technical problem mentioned in the background technology.

[0004] The utility model solves the above technical problems with the following technical solutions: a laparoscopic object extractor, comprising: a chuck, a shell cavity, an adjusting rod, a handle and a sleeve, wherein the front end of the adjusting rod is hinged with a pair of the shell cavities, the rear end of the adjusting rod is connected to the handle, the adjusting rod is arranged in the sleeve, and the handle controls the opening or closing of the pair of the shell cavities through the adjusting rod;

[0005] The pair of chucks are arranged in a pair of shell cavities, and a driving mechanism for driving the pair of chucks to open or close is also arranged in the sleeve, and the pair of chucks are also extended or retracted to the shell cavities through the driving mechanism.

[0006] The beneficial effects of the utility model are as follows: the shell cavity structure is adopted to enclose the chuck in the cavity structure, and the chuck can be used to accurately clamp various small items under laparoscopy, such as suture needles, clips, small tissues or stones, etc. The setting of the chuck makes the clamping process more stable and is not easy to cause the items to slip or be damaged. After clamping the items, the shell cavity can be closed, which effectively prevents the items from falling or collapsing during the outward movement, and helps to ensure the smooth progress of the operation. The opening and closing of the shell cavity are controlled by the handle to control the adjustment rod, and the operation is simple and convenient. At the same time, the setting of the shell cavity enables the object picker to be suitable for clamping items of different sizes and shapes, and has strong adaptability.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, a connecting arm is respectively provided on one side of the length direction of a pair of the shell cavities, and the middle parts of the two connecting arms are cross-rotatably connected;

[0009] The two connecting arms are connected to the front end of the adjusting rod via a V-shaped hinged connecting piece at one side facing away from the shell cavity.

[0010] The beneficial effect of adopting the above further scheme is: a planar four-bar telescopic mechanism is formed by connecting the connecting arm and the movable rod to realize the control of the shell cavity. The structure is simple, making the operation of the retriever more convenient. The doctor can quickly and accurately control the opening or closing of the shell cavity to meet the needs of different surgical scenarios.

[0011] Further, a spherical head is provided at the rear end of the adjusting rod, and the handle comprises: a first handle and a second handle, and the first handle and the second handle are rotatably connected;

[0012] A slot is disposed on one side of the first handle close to the adjusting rod, and the spherical head is disposed in and matched with the slot.

[0013] The beneficial effect of adopting the above further solution is that the cooperation between the spherical head and the slot enables the first handle to easily drive the adjustment rod to move, thereby controlling the opening and closing of the shell cavity, which is easy to operate.

[0014] Furthermore, a first slide groove is provided on one side of the handle, a push-pull block is provided in the first slide groove, and the push-pull block moves along the first slide groove.

[0015] The beneficial effects of adopting the above further scheme are: the setting of the push-pull block allows the operator to control the extension of the chuck more intuitively through the push-pull block, the operation method is intuitive and simple, and the convenience of the operation is improved; at the same time, the first slide groove also guides the movement of the moving block; the push-pull block and the first slide groove are set on one side of the handle, which improves the operability during use.

[0016] Further, the driving mechanism comprises: a push-pull rod, a pulley and a traction line, a chuck is provided at the front end of the push-pull rod, and another chuck is rotatably connected to the chuck at the front end of the push-pull rod;

[0017] A pair of the pulling wires is connected to the tail end of another clamp.

[0018] The beneficial effect of adopting the above further solution is that the clamping head can be controlled by the combination of the push-pull rod, the pulley and the traction line.

[0019] Furthermore, the rear end of the push-pull rod is connected to the push-pull block, and the push-pull rod is driven to move by pushing the push-pull block.

[0020] The beneficial effect of adopting the above further scheme is that by pushing the push-pull block on one side of the handle, the movement of the push-pull rod can be easily controlled, thereby driving the clamp connected to the push-pull rod to extend from the opened shell cavity to clamp objects. The operation is simple and quick, which helps to improve surgical efficiency.

[0021] Furthermore, a first chuck arm and a second chuck arm having an angle are extended from the tail end of the other chuck in a direction away from the chuck, the first chuck arm is located above the second chuck arm, and the tail ends of the first chuck arm and the second chuck arm are respectively connected to one of the pulling wires;

[0022] The pulling line connecting the first chuck arm is defined as a first pulling line, and the pulling line connecting the second chuck arm is defined as a second pulling line.

[0023] The beneficial effect of adopting the above further scheme is that by controlling the first traction line and the second traction line respectively, the opening and closing of the chuck can be accurately controlled. When the first traction line pulls the first chuck arm, the chuck opens to facilitate the clamping of objects; and when the second traction line pulls the second chuck arm, the chuck closes to ensure that the objects are firmly clamped. During use, the first traction line or the second traction line can be flexibly selected to control the opening and closing of the chuck according to needs, which helps to improve the quality and efficiency of surgery.

[0024] Further, a pulley is respectively arranged above and below the outer wall of the push-pull rod on one side close to the first chuck arm and the second chuck arm, and the first traction line is wound around the pulley arranged below the outer wall of the push-pull rod and connected to the end of the push-pull rod away from the chuck;

[0025] The second traction wire is wound around the pulley disposed above the outer wall of the push-pull rod and then extends out from the opening of the handle.

[0026] The beneficial effect of adopting the above further solution is that the moving paths of the first traction line and the second traction line are limited by the pulley, and the opening and closing of the chuck can be conveniently controlled by pulling or releasing the traction line, thereby improving the convenience of operation. The design of the pulley allows the traction line to be turned, reducing the friction between the traction line and the outer wall of the push-pull rod.

[0027] Furthermore, a pulley is provided near the connection between the push-pull rod and the first traction line.

[0028] The beneficial effect of adopting the above further solution is that the setting of the pulley limits the moving path of the first traction line, and the additional pulley can effectively reduce the friction, making the movement of the traction line smoother and reducing energy loss and wear.

[0029] Furthermore, the adjusting rod is sleeved outside the push-pull rod, a limiting protrusion is further provided on the push-pull rod, a second sliding groove is provided on the inner wall of the adjusting rod, and the limiting protrusion moves along the second sliding groove.

[0030] The beneficial effects of adopting the above further solution are: the limit protrusion and the second slide groove have a simple structure, and the movement stroke of the push-pull rod can be accurately controlled by moving the limit protrusion in the second slide groove. The two ends of the second slide groove are the stroke limits of the limit protrusion. The setting of the stroke limit can prevent the push-pull rod from excessive movement, thereby ensuring the accuracy of the chuck position and avoiding operational errors or equipment damage caused by improper stroke. The cooperation between the limit protrusion and the second slide groove allows the push-pull rod to remain stable during the movement and is not prone to displacement or shaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the structure of an embodiment of the utility model;

[0032] Figure 2 It is a structural schematic diagram of another direction of an embodiment of the utility model;

[0033] Figure 3 This is a schematic structural diagram of a chuck portion in one embodiment of the utility model;

[0034] Figure 4 It is a structural schematic diagram of the handle part in one embodiment of the utility model.

[0035] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0036] 1. chuck; 2. shell cavity; 3. sleeve; 4. adjustment rod; 5. handle; 6. connecting arm; 7. hinged connecting piece; 8. first slide groove; 9. push-pull block; 10. push-pull rod; 11. pulley; 12. traction line; 13. first chuck arm; 14. second chuck arm; 41. spherical head; 51. first handle; 52. second handle; 511. slot. DETAILED DESCRIPTION

[0037] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0038] like Figure 1-4As shown, the utility model provides a laparoscopic object extractor, comprising: a chuck 1, a shell cavity 2, an adjusting rod 4, a handle 5 and a sleeve 3. In this embodiment, the chuck 1 and the shell cavity 2 are arranged in pairs, the shell cavity 2, the adjusting rod 4 and the handle 5 are connected in sequence, and the adjusting rod 4 is controlled by the handle 5 to control the shell cavity 2 to open or close; specifically, a pair of shell cavities 2 are hinged at the front end of the adjusting rod 4. The adjusting rod 4 is placed in the sleeve 3. It can be imagined that a corresponding channel is opened in the sleeve 3 along the length direction for the adjusting rod 4 to pass through and move.

[0039] The shell cavity 2 is a shell structure with a cavity inside, and a pair of chucks 1 are arranged in the inner cavity of the pair of shell cavities 2. A driving mechanism for driving the pair of chucks 1 to move is also arranged in the sleeve 3, and the pair of chucks 1 can be driven to move via the driving mechanism. In this embodiment, the shell cavity 2 adopts an ellipsoidal shell cavity 2, with a length dimension of 2 cm and a width dimension of 1 cm. This dimension meets the requirements of operation and is more compatible with the size of the chuck 1; it is conceivable that the shape of the shell cavity 2 can also be changed, for example, a spherical shell cavity 2 is adopted, etc., and no further limitation is made here.

[0040] When the pair of shell cavities 2 are opened, the chuck 1 extends from the pair of shell cavities 2 to clamp an object, which may be a laparoscopic suture needle, a clip, a small tissue or a stone, etc. After the chuck 1 clamps the object, it returns together to the pair of shell cavities 2. At this time, the pair of ellipsoidal shell cavities 2 are closed to prevent the object from falling or collapsing during the outward movement. The scattered objects are difficult to find, time-consuming and labor-intensive, and delay the operation process.

[0041] In this embodiment, the shell cavity 2 structure is adopted to enclose the chuck 1 in the cavity structure. The chuck 1 can realize accurate clamping of various small items under laparoscopy, such as suture needles, clips, small tissues or stones, etc. The setting of the chuck 1 makes the clamping process more stable and is not easy to cause the items to slip or be damaged. After clamping the items, the shell cavity 2 can be closed, which effectively prevents the items from falling or collapsing during the outward movement, and helps to ensure the smooth progress of the operation. The handle 5 controls the adjustment rod 4, and then controls the opening and closing of the shell cavity 2, which is simple and convenient to operate. At the same time, the setting of the shell cavity 2 enables the object picker to be suitable for clamping items of different sizes and shapes, and has strong adaptability.

[0042] like Figure 1-2As shown, a connecting arm 6 is respectively provided on one side of the length direction of a pair of shell cavities 2, and the middle parts of the two connecting arms 6 are cross-rotatably connected. Specifically, the two connecting arms 6 can be hingedly connected. The pair of shell cavities 2 and the pair of connecting arms 6 are similar to the scissors structure in daily life; in order to realize the driving of the connecting arms 6 and thus control the opening or closing of the pair of shell cavities 2, the side of the pair of connecting arms 6 away from the shell cavities 2 is connected to the front end of the adjustment rod 4 through a "V"-shaped hinged connector 7. The hinged connector 7 is two movable rods, and the rear end of each connecting arm 6 is hinged to the front end of a movable rod respectively, and the rear ends of the two movable rods are connected to the front end of the adjustment rod 4 through a pin shaft. The two movable rods after connection are in a "V" shape, and a planar four-bar telescopic mechanism is formed between the pair of connecting arms 6 and the pair of movable rods.

[0043] In the above scheme, a planar four-bar telescopic mechanism is formed by connecting the connecting arm 6 and the movable rod to realize the control of the shell cavity 2. The structure is simple, making the operation of the retriever more convenient. The doctor can quickly and accurately control the opening or closing of the shell cavity 2 to meet the needs of different surgical scenarios.

[0044] like Figure 4 As shown, a spherical head 41 is provided at the rear end of the adjusting rod 4. The handle 5 includes: a first handle 51 and a second handle 52, wherein the first handle 51 is a movable handle 5, and the second handle 52 is a fixed handle 5, and the first handle 51 and the second handle 52 are rotatably connected. Specifically, a connecting hole can be provided on both the first handle 51 and the second handle 52, so that the first handle 51 and the second handle 52 are connected through a pin shaft, wherein a spring is provided on the pin shaft for providing a restoring force. Since the prior art is relatively complete, no further details are given here. The movable first handle 51 is connected to the rear end of the adjusting rod 4; specifically, a slot 511 is provided on the side of the first handle 51 close to the adjusting rod 4, and the spherical head 41 is provided in the slot 511 and cooperates with the slot 511, and the spherical head 41 is accommodated through the slot 511.

[0045] When the first handle 51 is pressed, under the action of the movable first handle 51, the adjusting rod 4 is pulled to move toward the end away from the shell cavity 2, so that a pair of shell cavities 2 are closed; when the first handle 51 is released, the adjusting rod 4 moves to the end close to the shell cavity 2, so that a pair of shell cavities 2 are opened, and the pair of shell cavities 2 are driven to move between the open position and the closed position through the first handle 51.

[0046] In the above solution, the cooperation between the spherical head 41 and the slot 511 enables the first handle 51 to easily drive the adjustment rod 4 to move, thereby controlling the opening and closing of the shell cavity 2, which is easy to operate.

[0047] like Figure 2As shown, in the preferred solution, a first slide groove 8 is further provided on one side of the handle 5, and a push-pull block 9 is provided in the first slide groove 8, and the push-pull block 9 moves along the first slide groove 8; in this embodiment, the push-pull block 9 is an operating switch for driving a pair of chucks 1 to extend out of a pair of shell cavities 2.

[0048] In the above scheme, the setting of the push-pull block 9 allows the operator to more intuitively control the extension of the chuck 1 through the push-pull block 9. The operation method is intuitive and simple, which improves the convenience of the operation; at the same time, the first slide groove 8 also guides the movement of the moving block; the push-pull block 9 and the first slide groove 8 are set on one side of the handle 5, which improves the operability during use.

[0049] like Figure 1 , Figure 3 As shown, in the preferred embodiment, the driving mechanism includes: a push-pull rod 10, a pulley 11 and a traction line 12. In this embodiment, a chuck 1 is arranged at the front end of the push-pull rod 10, that is, the chuck 1 is arranged in the horizontal direction; another chuck 1 is rotatably connected to the chuck 1 arranged at the front end of the push-pull rod 10; in some feasible embodiments, the connection between the push-pull rod 10 and the chuck 1 is connected to the other chuck 1 through a pin shaft.

[0050] In this embodiment, a pair of pulling wires 12 are provided, and the head ends of the pair of pulling wires 12 are connected to the tail end of another chuck 1 that is not connected to the push-pull rod 10 , and the pair of chucks 1 are controlled to open or close respectively through the pair of pulling wires 12 .

[0051] In the above solution, the chuck 1 can be controlled by the combination of the push-pull rod 10 and the pulling line 12 .

[0052] Specifically, the rear end of the push-pull rod 10 is connected to the push-pull block 9, so that the push-pull rod 10 is driven to move by pushing the push-pull block 9. By pushing the push-pull block 9 on one side of the handle 5, the movement of the push-pull rod 10 can be easily controlled, thereby driving the clamp 1 connected to the push-pull rod 10 to extend from the opened shell cavity 2 to clamp objects, which is simple and quick to operate, and helps to improve surgical efficiency.

[0053] like Figure 3As shown, the tail end of the other chuck 1 not connected to the push-pull rod 10 is provided with a first chuck arm 13 and a second chuck arm 14, and an angle is provided between the first chuck arm 13 and the second chuck arm 14, and the first chuck arm 13 is provided above the height of the second chuck arm 14; specifically, the first chuck arm 13 and the second chuck arm 14 extend from the tail end of the other chuck 1 in a direction away from the chuck 1, and the tail ends of the first chuck arm 13 and the second chuck arm 14 are respectively connected with a traction line 12. The first traction line is defined as the one connected to the first chuck arm 13, and the second traction line is defined as the one connected to the second chuck arm 14. When the first traction line pulls the first chuck arm 13, the first chuck arm 13 drives the chuck 1 to open to clamp an object; when the second traction line pulls the second chuck arm 14, the first chuck arm 13 drives the chuck 1 to close, and the second traction line can be further pulled to drive the chuck 1 with the object clamped to return to a pair of shell cavities 2.

[0054] In the above scheme, by controlling the first traction line and the second traction line respectively, the opening and closing of the chuck 1 can be accurately controlled. When the first traction line pulls the first chuck arm 13, the chuck 1 opens to facilitate the clamping of objects; and when the second traction line pulls the second chuck arm 14, the chuck 1 closes to ensure that the objects are firmly clamped. During use, the first traction line or the second traction line can be flexibly selected to control the opening and closing of the chuck 1 as needed, which helps to improve the quality and efficiency of surgery.

[0055] like Figure 3 As shown, a pulley 11 is respectively provided above and below the outer wall of the push-pull rod 10 on one side close to the first chuck arm 13 and the second chuck arm 14. Specifically, a pulley 11 is provided below the outer wall of the push-pull rod 10, so that the first traction line connected to the first chuck arm 13 is connected to the end of the push-pull rod 10 away from the chuck 1 after passing through the pulley 11. A pulley 11 is provided above the outer wall of the push-pull rod 10, so that the second traction line connected to the second chuck arm 14 is extended from the opening of the handle 5 after passing through the pulley 11. It can be imagined that during use, the second traction line extending from the opening can be directly acted on, or a pull ring can be provided at the opening of the handle 5 of the second traction line, and the second traction line can be pulled or released by operating the pull ring.

[0056] In the above solution, the moving paths of the first traction line and the second traction line are limited by the pulley 11, and the opening and closing of the chuck 1 can be conveniently controlled by pulling or releasing the traction line 12, thereby improving the convenience of operation. The design of the pulley 11 allows the traction line 12 to turn inside the sleeve 3, thereby reducing the friction between the traction line 12 and the outer wall of the push-pull rod 10.

[0057] like Figure 4As shown, a pulley 11 is also provided near the connection between the push-pull rod 10 and the first traction line. Specifically, the pulley 11 is provided on the adjustment rod 4, and the setting of the pulley 11 defines the moving path of the first traction line. The additional pulley 11 can effectively reduce the friction force, make the movement of the traction line 12 smoother, and reduce energy loss and wear.

[0058] Specifically, a limiting protrusion is also provided on the push-pull rod 10, and correspondingly, a slide groove is provided on the inner wall of the adjustment rod 4, and the limiting protrusion moves along the second slide groove, wherein the length dimension of the second slide groove is the movement stroke of the push-pull rod 10, wherein the limiting protrusion and the second slide groove are not shown in the figure. In this embodiment, the push-pull rod 10 is a tubular structure, the adjustment rod 4 is sleeved outside the push-pull rod 10, and is coaxially arranged with the push-pull rod 10, and the push-pull rod 10 can move relative to the inner cavity of the adjustment rod 4. It can be imagined that a cavity is provided at the corresponding position of the adjustment rod 4, which does not affect the movement of the push-pull rod 10 and the connection between the push-pull rod 10 and the push-pull block 9; when the push-pull block 9 is pushed, under the action of the push-pull block 9, the push-pull rod 10 is pushed to move to the front end, so that a pair of clamps 1 extend from the opened shell cavity 2 to clamp items.

[0059] In the above scheme, the limiting protrusion and the second slide groove have a simple structure, and the movement stroke of the push-pull rod 10 can be accurately controlled by the movement of the limiting protrusion in the second slide groove. The two ends of the second slide groove are the stroke limits of the limiting protrusion. The setting of the stroke limit can prevent the push-pull rod 10 from excessive movement, thereby ensuring the accuracy of the position of the chuck 1 and avoiding operational errors or equipment damage caused by improper stroke. The cooperation between the limiting protrusion and the second slide groove enables the push-pull rod 10 to remain stable during the movement and is not prone to displacement or shaking.

[0060] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0061] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A laparoscopic object retrieval device, characterized in that: include: A chuck (1), a shell cavity (2), an adjusting rod (4), a handle (5) and a sleeve (3), wherein the front end of the adjusting rod (4) is hingedly connected to a pair of the shell cavities (2), the rear end of the adjusting rod (4) is connected to the handle (5), the adjusting rod (4) is arranged in the sleeve (3), and the handle (5) controls the opening or closing of the pair of the shell cavities (2) through the adjusting rod (4); The pair of chucks (1) are arranged in a pair of shell cavities (2), and a driving mechanism for driving the pair of chucks (1) to open or close is also arranged in the sleeve (3). The pair of chucks (1) are also extended or retracted into the shell cavities (2) through the driving mechanism.

2. The laparoscopic object retrieval device according to claim 1, characterized in that: A connecting arm (6) is respectively provided on one side of the length direction of a pair of the shell cavities (2), and the middle parts of the two connecting arms (6) are cross-rotatably connected; The two connecting arms (6) are connected to the front end of the adjusting rod (4) via a V-shaped hinged connecting piece (7) on the side facing away from the shell cavity (2).

3. The laparoscopic object retrieval device according to claim 1, characterized in that: The rear end of the adjusting rod (4) is provided with a spherical head (41), and the handle (5) comprises: a first handle (51) and a second handle (52), and the first handle (51) and the second handle (52) are rotatably connected; A slot (511) is provided on one side of the first handle (51) close to the adjusting rod (4), and the spherical head (41) is arranged in the slot (511) and cooperates with the slot (511).

4. The laparoscopic object retrieval device according to claim 1, characterized in that: A first sliding groove (8) is also provided on one side of the handle (5), a push-pull block (9) is arranged in the first sliding groove (8), and the push-pull block (9) moves along the first sliding groove (8).

5. The laparoscopic object retrieval device according to claim 4, characterized in that: The driving mechanism comprises: a push-pull rod (10) and a pulling line (12); a clamp (1) is arranged at the front end of the push-pull rod (10); another clamp (1) is rotatably connected to the clamp (1) at the front end of the push-pull rod (10); A pair of pulling wires (12) are connected to the tail end of another clamp (1).

6. The laparoscopic object retrieval device according to claim 5, characterized in that: The rear end of the push-pull rod (10) is connected to the push-pull block (9), and the push-pull rod (10) is driven to move by pushing the push-pull block (9).

7. The laparoscopic object retrieval device according to claim 6, characterized in that: A first chuck arm (13) and a second chuck arm (14) having an included angle are extended from the tail end of the other chuck (1) in a direction away from the chuck (1), the first chuck arm (13) is located above the second chuck arm (14), and the tail ends of the first chuck arm (13) and the second chuck arm (14) are respectively connected to one of the pulling wires (12); The pulling line (12) connected to the first clamp arm (13) is defined as a first pulling line, and the pulling line (12) connected to the second clamp arm (14) is defined as a second pulling line.

8. The laparoscopic object retrieval device according to claim 7, characterized in that: A pulley (11) is provided above and below the outer wall of the push-pull rod (10) on one side close to the first chuck arm (13) and the second chuck arm (14), respectively; the first traction line is wound around the pulley (11) provided below the outer wall of the push-pull rod (10) and connected to an end of the push-pull rod (10) facing away from the chuck (1); The second traction wire is wound around the pulley (11) disposed above the outer wall of the push-pull rod (10) and then extends out from the opening of the handle (5).

9. The laparoscopic object retrieval device according to claim 8, characterized in that: A pulley (11) is also provided near the connection between the push-pull rod (10) and the first traction line.

10. The laparoscopic object retrieval device according to claim 6, characterized in that: The adjusting rod (4) is sleeved outside the push-pull rod (10), and a limiting protrusion is also provided on the push-pull rod (10). A second sliding groove is opened on the inner wall of the adjusting rod (4), and the limiting protrusion moves along the second sliding groove.

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