Biliary calculus removing gripper for choledochoscope

Abstract

The invention discloses a choledochoscope biliary calculus removing gripper which comprises a sheathing canal, the front end of the sheathing canal is provided with a ball connected rotating head, a pull rope is slidably mounted in the sheathing canal, and a first pull rope is arranged in the sheathing canal and connected with the outer wall of the rotating head; a pull rope is slidably mounted in the middle of the rotating head; an elastic element is arranged in the rotating head and connected with the stud; square grooves are formed in the rotating head in an array mode, and grabbing plates are rotationally connected into the square grooves. The stud is a flat thread stud, and the lower end of the stud is detachably connected with the front end of the pull rope.

Description

Technical Field

[0001] The invention relates to the technical field of medical auxiliary equipment, and in particular to a choledochoscope biliary stone removal gripper. Background Art

[0002] Biliary stones refer to stones formed in the bile duct system. It is the most common disease in the bile duct system and mainly includes three parts: gallbladder stones, common bile duct stones and intrahepatic bile duct stones. The treatment of bile duct stones includes conservative treatment and surgical treatment. The specific choice depends on the location, size and symptoms of the stone. For patients with no symptoms or mild symptoms, the symptoms are mainly controlled by drugs, such as anti-inflammatory and antispasmodic. For patients with severe symptoms or large stones, surgical treatment is required. Surgical methods include laparoscopic cholecystectomy, common bile duct lithotomy, etc.

[0003] In the prior art, during the biliary stone removal surgery, a stone removal basket is generally used to grab the stone. However, using the stone removal basket to remove the stone requires high doctor experience. For surgeons with less surgical experience, the operation is not skilled, which may easily lead to difficulty in removing the stone, or the stone may be left in the bile duct, which is not conducive to the patient's later recovery.

[0004] Therefore, the present invention discloses a choledochoscope biliary stone removal gripper, which is simple to operate, and patients with less surgical experience can also remove stones completely and quickly through the device disclosed by the present invention. Summary of the invention

[0005] In order to solve the drawbacks of the prior art, the present invention is achieved through the following technical solutions:

[0006] A choledochoscope biliary stone removal gripper, comprising: a sheath tube;

[0007] A ball head is arranged at the front end of the sheath tube to connect with the rotating head, a draw rope is slidably installed inside the sheath tube, and a draw rope is arranged inside the sheath tube to connect with the outer wall of the rotating head;

[0008] The pull rope is slidably installed in the middle of the rotating head, and an elastic element is provided inside the rotating head to connect the stud; a square groove is provided in an array on the rotating head, and a grab plate is rotatably connected in the square groove; the stud is a flat thread stud, and the lower end of the stud can be detachably connected to the front end of the pull rope;

[0009] Furthermore, the sheath is made of soft silicone, the sheath length is 15 to 30 cm, and the sheath diameter is 2 to 3 mm;

[0010] The front end of the sheath tube is provided with a ball head connected to the rotating head, and a sliding groove is provided on the wall of the ball head to connect the rotating head, so as to ensure that the rotating head can only rotate around the sliding groove;

[0011] Furthermore, the grab plate is an arc-shaped plate, a straight rod is arranged at the lower end of the arc-shaped plate, the rear end of the straight rod is rotatably installed in the square groove, a fan-shaped disk is arranged on the straight rod, and a gear connection stud is arranged on the wall of the fan-shaped disk;

[0012] The inner wall of the arc-shaped plate is provided with a silicone anti-slip pattern;

[0013] By pulling the pull rope, the stud is driven to move in the rotating head, which drives the fan-shaped disk to drive the grab plate to rotate, so that the grab plates arranged in the array are synchronously extended outward;

[0014] Furthermore, the length of the grab plate ranges from 3 to 6 cm, and when the grab plate is synchronously expanded outward, the expansion diameter ranges from 3.2 to 6.2 mm.

[0015] The beneficial effects of the present invention are:

[0016] The present invention discloses a biliary stone removal gripper for a choledochoscope, comprising: a sheath, a pull rope, a pull rope 1, a rotating head, a stud, and a grasping plate. The sheath is extended into the bile duct to reach a specified position, the sheath is rotated, and the pull rope 1 is pulled to drive the rotating head to rotate, so that the upper end of the rotating head is aligned with the stone, the pull rope is pulled to drive the stud to move in the rotating head, drive the fan-shaped disk to move and drive the grasping plate to rotate, so that the grasping plates arranged in an array are synchronously extended outward, and after the stone is covered inside the extended grasping plate, the stretching is released, and under the action of the elastic element, the stud is pushed to move, drive the fan-shaped disk to move and drive the grasping plate Rotate to make the grasping plates arranged in the array rotate synchronously to form a hemispherical shell, illuminate the stones in the grasping plate, drag the sheath tube to remove the stones from the human body; the biliary stone removal grasper disclosed in the present invention only needs to rotate the sheath tube under the laparoscope during actual use, and then pull the pull rope to control the rotating head to rotate the counter-rotating stones, release after pulling and stretching, and the grasping plate is reset under the action of the elastic element to cover the stones in the rotating head, and the sheath tube can be dragged to remove the stones. The operation is simple, and patients with less surgical experience can also remove the stones completely and quickly through the device disclosed in the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings required for describing the embodiment are briefly introduced below.

[0018] Figure 1 The figure is a schematic diagram of the overall structure of a choledochoscope biliary stone removal gripper;

[0019] Figure 2 The present invention is a schematic diagram of the cross-sectional structure of a choledochoscope biliary stone removal gripper;

[0020] Figure 3 The present invention is a schematic diagram of the structure of a stud of a biliary stone removal grasper of a choledochoscope;

[0021] Figure 4It is a schematic diagram of the overall structure of a choledochoscope biliary stone removal gripper from another perspective;

[0022] Figure 5 It is a choledochoscope bile duct stone removal gripper Figure 4 Schematic diagram of the local enlarged structure.

[0023] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0024] 1-sheath, 101-ball head, 2-rotating head, 3-stud, 301-elastic element, 4-grasp plate, 401-arc plate, 402-straight rod, 403-fan-shaped disk, 5-pull rope 1, 6-pull rope. DETAILED DESCRIPTION

[0025] In order to solve the problems existing in the drainage tube of the prior art, the present invention discloses a choledochoscope biliary stone removal gripper, comprising: a sheath tube 1;

[0026] The front end of the sheath tube 1 is provided with a ball head 101 connected to the rotating head 2, a drawstring 6 is slidably installed inside the sheath tube 1, and a drawstring 5 is provided inside the sheath tube 1 to connect to the outer wall of the rotating head 2;

[0027] A pull rope 6 is slidably installed in the middle of the rotating head 2, and an elastic element 301 is provided inside the rotating head 2 to connect the stud 3; a square groove is provided in an array on the rotating head 2, and a grab plate 4 is rotatably connected in the square groove; the stud 3 is a flat thread stud 3, and the lower end of the stud 3 can be detachably connected to the front end of the pull rope 6.

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] Example 1

[0030] like Figure 2 The figure shows a schematic cross-sectional structure diagram of the present invention. The choledochoscope biliary stone removal gripper disclosed in the present invention comprises: a sheath tube 1;

[0031] The front end of the sheath tube 1 is provided with a ball head 101 connected to the rotating head 2, a drawstring 6 is slidably installed inside the sheath tube 1, and a drawstring 5 is provided inside the sheath tube 1 to connect to the outer wall of the rotating head 2;

[0032] The pull rope 6 is slidably installed in the middle of the rotating head 2, and an elastic element 301 is provided inside the rotating head 2 to connect the stud 3; a square groove is provided on the rotating head 2, and a grab plate 4 is rotatably connected in the square groove; the stud 3 is a flat thread stud 3, and the lower end of the stud 3 can be detachably connected to the front end of the pull rope 6;

[0033] In this embodiment, the sheath tube 1 is made of soft silicone, the length of the sheath tube 1 is 15 to 30 cm, and the diameter of the sheath tube 1 is 2 to 3 mm;

[0034] The front end of the sheath tube 1 is provided with a ball head 101 connected to the rotating head 2, and a sliding groove is provided on the wall of the ball head 101 to connect to the rotating head 2, so as to ensure that the rotating head 2 can only rotate around the sliding groove;

[0035] In this embodiment, the grab plate 4 is an arc-shaped plate 401, a straight rod 402 is provided at the lower end of the arc-shaped plate 401, the rear end of the straight rod 402 is rotatably installed in the square groove, a fan-shaped disk 403 is provided on the straight rod 402, and a gear connection stud 3 is provided on the wall of the fan-shaped disk 403;

[0036] The inner wall of the arc plate 401 is provided with a silicone anti-slip pattern;

[0037] By pulling the pull rope 6, the stud 3 is driven to move in the rotating head 2, and the fan-shaped disk 403 is driven to drive the grab plate 4 to rotate, so that the grab plates 4 arranged in the array are synchronously extended outward;

[0038] In this embodiment, the length of the grab plate 4 is in the range of 3 to 6 cm, and when the grab plate 4 is synchronously expanded, the expansion diameter ranges from 3.2 to 6.2 mm;

[0039] In this embodiment, the sheath is made of PV plastic (rigid), and other suitable consumables in the medical field can also be selected for production;

[0040] The ball head and the gripping plate are made of 304 stainless steel, and can also be made of other suitable production consumables in the medical field.

[0041] In this embodiment, the sheath tube 1 is inserted into the bile duct to reach the specified position, the sheath tube 1 is rotated, and the pull rope 5 is pulled to drive the rotating head 2 to rotate, so that the upper end of the rotating head 2 is aligned with the stone, and the pull rope 6 is pulled to drive the stud 3 to move in the rotating head 2, drive the fan-shaped disk 403 to move and drive the grab plate 4 to rotate, so that the grab plates 4 arranged in the array are synchronously extended outward, and after the stone is covered inside the extended grab plates 4, the stretching is released, and under the action of the elastic element 301, the stud 3 is pushed to move, drive the fan-shaped disk 403 to move and drive the grab plates ... the stone is covered inside the extended grab plates 4. They rotate synchronously to form a hemispherical shell, which illuminates the stone in the grasping plate 4, and the sheath 1 is dragged to remove the stone from the human body. When the choledochoscope biliary stone removal gripper disclosed in the present invention is actually used, it is only necessary to rotate the sheath 1 under the laparoscope, and then pull the pull rope 5 to control the rotating head 2 to rotate the counter-rotating stone, and release it after pulling and stretching. Under the action of the elastic element 301, the grasping plate 4 is reset to cover the stone in the rotating head 2, and the sheath 1 can be dragged to remove the stone. The operation is simple, and patients with less surgical experience can also remove the stone completely and quickly through the device disclosed in the present invention.

[0042] In summary, the present invention discloses a choledochoscope biliary stone removal gripper, comprising: a sheath tube 1, a pull rope 6, a pull rope 5, a rotating head 2, a stud 3, and a grasping plate 4. The sheath tube 1 is inserted into the bile duct to reach a specified position, the sheath tube 1 is rotated, and the pull rope 5 is pulled to drive the rotating head 2 to rotate, so that the upper end of the rotating head 2 is aligned with the stone, the pull rope 6 is pulled, the stud 3 is driven to move in the rotating head 2, and the fan-shaped disk 403 is driven to drive the grasping plate 4 to rotate, so that the grasping plates 4 arranged in the array are synchronously extended outward, and after the stone is covered inside the extended grasping plate 4, the stretching is released, and under the action of the elastic element 301, the stud 3 is pushed to move, driving the fan-shaped disk The movement 403 drives the grasping plate 4 to rotate, so that the grasping plates 4 arranged in the array rotate synchronously to form a hemispherical shell, so that the stones are illuminated in the grasping plate 4, and the sheath 1 is dragged to remove the stones from the human body; when the choledochoscope biliary stone removal gripper disclosed in the present invention is actually used, it is only necessary to rotate the sheath 1 under the laparoscope, and then pull the pull rope 5 to control the rotating head 2 to rotate the rotating stones, and then release it after pulling and stretching. Under the action of the elastic element 301, the grasping plate 4 is reset to cover the stones in the rotating head 2, and the sheath 1 can be dragged to remove the stones. The operation is simple, and patients with less surgical experience can also remove the stones completely and quickly through the device disclosed in the present invention.

[0043] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only the specific implementation methods described.

Claims

1. A choledochoscope biliary stone removal gripper, characterized in that: include: Sheath; A ball head is arranged at the front end of the sheath tube to connect with the rotating head, a draw rope is slidably installed inside the sheath tube, and a draw rope is arranged inside the sheath tube to connect with the outer wall of the rotating head; The pull rope is slidably installed in the middle of the rotating head, and an elastic element is arranged inside the rotating head to connect the stud; a square groove is arranged in an array on the rotating head, and a grab plate is rotatably connected in the square groove; the stud is a flat thread stud, and the lower end of the stud can be detachably connected to the front end of the pull rope.

2. According to claim 1, a choledochoscope biliary stone removal gripper is characterized in that ,,The sheath is made of soft silicone, the length of the sheath is 15 to 30 cm, and the diameter of the sheath is 2 to 3 mm; A ball head is arranged at the front end of the sheath tube to connect with the rotating head, and a sliding groove is arranged on the wall of the ball head to connect with the rotating head, so as to ensure that the rotating head can only rotate around the sliding groove.

3. A choledochoscope biliary stone removal gripper according to claim 1, characterized in that: The grab plate is an arc-shaped plate, a straight rod is arranged at the lower end of the arc-shaped plate, the rear end of the straight rod is rotatably installed in the square groove, a fan-shaped disk is arranged on the straight rod, and a gear connection stud is arranged on the wall of the fan-shaped disk; The inner wall of the arc-shaped plate is provided with a silicone anti-slip pattern; The pull rope is pulled to drive the stud to move in the rotating head, which drives the fan-shaped disk to drive the grab plate to rotate, so that the grab plates arranged in the array are synchronously extended outward.

4. A choledochoscope biliary stone removal gripper according to claim 1, characterized in that: The length of the grab plate is in the range of 3 to 6 cm, and when the grab plate is synchronously extended outward, the expansion diameter ranges from 3.2 to 6.2 mm.

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