Liver and gall duct calculus removing device

Abstract

The utility model discloses a hepatic duct calculus removing device which comprises a clamping rod body and a control button, one end of the clamping rod body is connected with more than two elastic clamping strips which are evenly distributed with the axis of the clamping rod body as the center, and the end portions of the elastic clamping strips are connected through connecting blocks. The clamping rod body is internally provided with a linear pulling and holding structure capable of driving the connecting block along the axis of the clamping rod body in a pulling and holding mode, and under the driving of the linear pulling and holding structure to the connecting block, the elastic clamping strips can be deformed into a bent state from a linear state, and the gap between every two adjacent elastic clamping strips can be increased. Through the elastic clamping strip arranged at the end part of the clamping rod body, and the linear pulling structure is used for carrying out deformation driving on the elastic clamping strip, so that internal supporting type clamping in the body of a patient can be realized, the clamping range of the size of a calculus is enlarged, and a certain positioning and clamping effect on the calculus can be realized by the positioning cone, so that the calculus is prevented from falling off.

Description

Technical Field

[0001] The utility model relates to the technical field of medical treatment, in particular to a device for removing hepatobiliary stones. Background Art

[0002] Blockage of the bile duct by stones can cause acute liver failure in patients and is one of the major diseases that threaten human health. When treating this type of disease, surgery is usually used to make a longitudinal incision in the bile duct to remove the stones. However, this will cause larger wounds in the patient's bile duct, a longer healing period, and slow recovery, which will bring a great workload to medical staff.

[0003] A device for removing bile duct stones with application number 202010209285.5 includes a sleeve; a spacer ring is fixedly arranged inside the sleeve, and a lifting slider is radially slidably arranged in the inner cavity of the sleeve above the spacer ring, a movable clamp is hingedly connected to the lifting slider through a hinge seat, and a fixed clamp corresponding to the movable clamp is also arranged on the top of the sleeve, and the lifting slider is supported and connected to the spacer ring by a support spring; a pull rope is also fixedly connected to the lifting slider.

[0004] A device for removing hepatobiliary stones with application number 201721542678.8 includes a stone removal device body, a wiring port is provided on the front side of the stone removal device body, a wiring lug is provided in the wiring port, a current wiring is provided on the wiring lug, the current wiring is connected to the current connector, a flushing pipe port is provided on the right side of the wiring port, a flushing pipe is provided in the flushing pipe port, a flushing inner tube is provided in the flushing tube, and a water flushing port is provided on the flushing inner tube.

[0005] At present, when open clamping such as jaws is used, if the jaws are too large, they are easily affected by the internal environment and cannot be opened and closed to a large angle. If the jaws are too small, they cannot effectively clamp the stones. Utility Model Content

[0006] The purpose of the present invention is to solve the above-mentioned problems and to provide a device for removing hepatobiliary stones in order to overcome the defects of the prior art, as described in detail below.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] The utility model provides a device for removing hepatobiliary stones, comprising a clamping rod body and a control button, one end of the clamping rod body is connected to two or more elastic clamping strips evenly distributed with its axis as the center, the ends of the elastic clamping strips are connected to each other through a connecting block, and a straight line pulling structure capable of pulling and driving the connecting block along the axis of the clamping rod body is arranged in the clamping rod body, when the straight line pulling structure drives the connecting block, the elastic clamping strip can be deformed from a straight state to a curved state and the gap between two adjacent elastic clamping strips can be increased.

[0009] Preferably, the cross-section of the elastic clamping strip is in the shape of an arc, and the arc-shaped grooves of the elastic clamping strip are arranged opposite to each other.

[0010] Preferably, the linear pulling structure includes a telescopic channel opened in the clamping rod body, an electric telescopic rod is fixedly provided at one end inside the telescopic channel, the push rod head end of the electric telescopic rod is fixedly connected to one end of a pull rope, the other end of the pull rope slides through the clamping rod body and is fixedly connected to the connecting block, and the output end of the control button is electrically connected to the input end of the electric telescopic rod.

[0011] Preferably, a battery is arranged inside one end of the clamping rod away from the elastic clamping strip, and an end cap is arranged at the end of the clamping rod.

[0012] Preferably, the connection block is connected to two or more evenly distributed pressure rods, the pressure rods correspond to the elastic clamping strips one by one, and a positioning cone is provided on one side of the pressure rod facing the end of the clamping rod body.

[0013] Preferably, an arc-shaped groove is provided on the outer side of the connection between the elastic clamping strip and the clamping rod body.

[0014] Preferably, an arc-shaped transition section is formed on the outer side of the connection between the elastic clamping strip and the connecting block.

[0015] The beneficial effects are:

[0016] By providing an elastic clamping strip at the end of the clamping rod and deforming and driving the elastic clamping strip through a linear pulling structure, internal support clamping in the patient's body can be achieved, thereby increasing the clamping range of the stone size, and the positioning cone can achieve a certain positioning and clamping effect on the stone to prevent the stone from falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is the front view of the utility model;

[0019] Figure 2 This utility model Figure 1 AA section view;

[0020] Figure 3 This utility model Figure 1 A partial enlarged view of point B;

[0021] Figure 4 This utility model Figure 1 Stereoscopic diagram.

[0022] Figure 5 It is a schematic diagram of the bending state of the elastic clamping strip of the utility model.

[0023] The description of the accompanying drawings is as follows: 1. Clamping rod body; 2. Elastic clamping strip; 3. Control button; 4. End cap; 5. Battery; 6. Linear pulling structure; 601. Electric telescopic rod; 602. Pull rope; 7. Telescopic channel; 8. Connecting block; 9. Pressure rod; 10. Positioning cone; 11. Arc groove. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0025] See also Figure 1-Figure 5 As shown, the utility model provides a device for removing hepatobiliary stones, including a clamping rod 1 and a control button 3. One end of the clamping rod 1 is connected to two or more elastic clamping strips 2 evenly distributed around its axis. Specifically, three elastic clamping strips 2 are provided, and the cross-sectional shape of the elastic clamping strip 2 is in the shape of an arc. The arc-shaped grooves of the elastic clamping strip 2 are arranged opposite to each other. The ends of the elastic clamping strip 2 are connected to each other through a connecting block 8; the cross-sectional shape of the elastic clamping strip 2 is in the shape of an arc, which facilitates the elastic clamping strip 2 to bend toward the arc-shaped groove, and plays a certain wrapping role on the stones to prevent them from falling off.

[0026] A linear pulling structure 6 is provided inside the clamping rod body 1, which can pull and drive the connecting block 8 along the axis of the clamping rod body 1. When the linear pulling structure 6 drives the connecting block 8, the elastic clamping strip 2 can be deformed from a straight state to a curved state and the gap between two adjacent elastic clamping strips 2 can be increased.

[0027] See the instruction manual Figure 2 and 3 As shown, the linear pulling structure 6 includes a telescopic channel 7 opened in the clamping rod body 1, an electric telescopic rod 601 is fixedly arranged at one end inside the telescopic channel 7, a push rod head end of the electric telescopic rod 601 is fixedly connected to one end of a pull rope 602, the other end of the pull rope 602 slides through the clamping rod body 1 and is fixedly connected to the connecting block 8, and the output end of the control button 3 is electrically connected to the input end of the electric telescopic rod 601.

[0028] A battery 5 is arranged inside one end of the clamping rod body 1 away from the elastic clamping strip 2, and an end cap 4 is arranged at the end of the clamping rod body 1. The battery 5 can be a rechargeable battery, which is convenient for recycling and can be directly used with an external power source.

[0029] The connecting block 8 is connected to two or more uniformly distributed pressure rods 9, which correspond to the elastic clamping strips 2 one by one, and a positioning cone 10 is provided on one side of the pressure rod 9 facing the end of the clamping rod body 1. Through the above-mentioned specific structural design, during the bending process of the elastic clamping strip 2, the positioning cone 10 can play a certain positioning and clamping role on the stone to prevent the stone from falling off.

[0030] An arc groove 11 is arranged outside the connection between the elastic clamping strip 2 and the clamping rod body 1. The arc groove 11 is conducive to the elastic clamping strip 2 being bent at a certain angle.

[0031] An arc-shaped transition section is formed outside the connection between the elastic clamping strip 2 and the connecting block 8. When inserted into the patient's body, it can play a protective role and prevent scratches.

[0032] Working principle:

[0033] A hole is made at the skin of the patient where the stone is to be removed, and the size of the hole can be consistent with the outer diameter of the clamping rod 1, or the diameter of the hole can be slightly larger than the outer diameter of the clamping rod 1, so that the end of the elastic clamping strip 2 of the clamping rod 1 can enter the patient's body. A camera and a lighting structure can also be set at the end of the clamping rod 1 where the elastic clamping strip 2 is provided for endoscopic operation. When the elastic clamping strip 2 moves to the stone position, the straight-line pulling structure 6 pulls the connecting block 8. At this time, the elastic clamping strip 2 is deformed into an arc shape by the pulling force, and the gap between the elastic clamping strips 2 is widened until the stone can pass through the gap and enter the position between the elastic clamping strips 2. Then the straight-line pulling structure 6 releases the pulling of the connecting block 8, and the elastic clamping strip 2 clamps the stone. Then the clamping rod 1 is held and the stone can be removed through the elastic clamping strip 2.

[0034] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A device for removing hepatobiliary stones, characterized in that: The invention comprises a clamping rod body (1) and a control button (3); one end of the clamping rod body (1) is connected to two or more elastic clamping strips (2) uniformly distributed around its axis; the ends of the elastic clamping strips (2) are connected to each other via a connecting block (8); a linear holding structure (6) is provided inside the clamping rod body (1) and is capable of holding and driving the connecting block (8) along the axis of the clamping rod body (1); when the linear holding structure (6) drives the connecting block (8), the elastic clamping strip (2) can be deformed from a linear state to a curved state and the gap between two adjacent elastic clamping strips (2) can be increased.

2. A device for removing hepatobiliary stones according to claim 1, characterized in that: The cross-section of the elastic clamping strip (2) is in the shape of an arc, and the arc-shaped grooves of the elastic clamping strip (2) are arranged opposite to each other.

3. The device for removing hepatobiliary stones according to claim 1, characterized in that: The linear holding structure (6) comprises a telescopic channel (7) opened in the clamping rod body (1), an electric telescopic rod (601) is fixedly arranged at one end inside the telescopic channel (7), a push rod head end of the electric telescopic rod (601) is fixedly connected to one end of a pull rope (602), the other end of the pull rope (602) slides through the clamping rod body (1) and is fixedly connected to a connecting block (8), and the output end of the control button (3) is electrically connected to the input end of the electric telescopic rod (601).

4. The device for removing hepatobiliary stones according to claim 1, characterized in that: A battery (5) is arranged inside one end of the clamping rod body (1) away from the elastic clamping strip (2), and an end cap (4) is arranged at the end of the clamping rod body (1).

5. The device for removing hepatobiliary stones according to claim 1, characterized in that: The connection block (8) is connected to more than two uniformly distributed pressure rods (9), the pressure rods (9) correspond to the elastic clamping strips (2) one by one, and a positioning cone (10) is provided on one side of the pressure rod (9) facing the end of the clamping rod body (1).

6. The device for removing hepatobiliary stones according to claim 1, characterized in that: An arc-shaped groove (11) is arranged on the outer side of the connection between the elastic clamping strip (2) and the clamping rod body (1).

7. The device for removing hepatobiliary stones according to claim 1, characterized in that: An arc-shaped transition section is formed on the outer side of the connection between the elastic clamping strip (2) and the connecting block (8).

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