Gall-stone taking-out device with grabbing and drug administration matched and using method of gall-stone taking-out device

Abstract

The invention relates to the technical field of gall-stone extraction, in particular to a gall-stone extraction device with grabbing and dosing matched and a using method thereof.The gall-stone extraction device comprises a protective tube and a dosing tube slidably mounted in the protective tube, a pushing ring is fixed to the end of the dosing tube, and the dosing tube is sleeved with a first spring abutting against the pushing ring; the grabbing mechanism is arranged on the protective tube and connected with the dosing tube, and a plurality of grabbing plates which are circumferentially distributed at equal intervals are connected to the grabbing mechanism; the piston cylinder is fixedly mounted on the protective tube, and a synchronous dosing mechanism is arranged in the piston cylinder; and the rotating ring is rotationally installed on the medicine feeding pipe and matched with the synchronous medicine feeding mechanism, and a rotating guide assembly connected with the rotating ring is arranged in the protection pipe. When the gall-stone is grabbed, medicine feeding treatment can be conducted synchronously, and when the grabbed gall-stone is taken out and released, medicine feeding treatment can be conducted synchronously; and the liquid medicine in the piston cylinder cannot be discharged.

Description

Technical Field

[0001] The invention relates to the technical field of gallstone removal, in particular to a gallstone removal device for grabbing and administering a drug and a method for using the device. Background Art

[0002] The formation of gallstones is related to many factors, and is the result of the combined effects of environmental factors, genetic factors, and personal lifestyle. Under normal circumstances, the human liver secretes bile to promote the digestion of fats and other substances. Under the influence of an unhealthy diet and lifestyle, bile secretion disorders and changes in bile composition may occur, and crystals may precipitate in the bile, which gradually calcify and form stones.

[0003] In this regard, Chinese patent CN113331910B proposes a gallstone removal device, and in particular, relates to a gallstone removal device for hepatobiliary surgery. The present invention provides a gallstone removal device for hepatobiliary surgery that can automatically inject drugs, automatically clamp stones, and store stones. A gallstone removal device for hepatobiliary surgery comprises: an outer frame, on which a fixed tube is provided; an adjustment mechanism, on which an adjustment mechanism is provided; a gripping mechanism, on which a gripping mechanism is provided; and a rotating mechanism, inside which a rotating mechanism is provided. The present invention drives the clamp to rotate by the first connecting block, and the first torsion spring is torsionally deformed, so that the clamp grabs the stone, thereby achieving the effect of the clamp grabbing the stone; the piston squeezes the drug in the drug storage tank, so that the drug flows into the connecting tube through the drug storage tank, thereby achieving the effect of the piston squeezing the drug. However, in the actual process, since it is simply gripped by the clamp, the gallstone may be separated from the clamp during the gripping process, and when the drug is injected, it cannot be automatically injected according to the gripping situation. Summary of the invention

[0004] The object of the present invention is to provide a gallstone removal device and a method of using the device for grabbing and administering a drug, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A device for removing gallstones for grabbing and administering medicine, comprising:

[0007] A protective tube, and a drug delivery tube slidably mounted in the protective tube, a push ring being fixed to the end of the drug delivery tube, and a spring No. 1 being sleeved on the drug delivery tube and abutting against the push ring;

[0008] Also includes:

[0009] A gripping mechanism, arranged on the protection tube and connected to the drug delivery tube, the gripping mechanism is connected to a plurality of gripping plates equidistantly distributed in a circumference, and the gripping mechanism can drive the gripping plates to move toward or away from each other when the drug delivery tube moves;

[0010] A piston cylinder is fixedly mounted on the protection tube, and a synchronous drug delivery mechanism is arranged in the piston cylinder;

[0011] A rotating ring is rotatably mounted on the dosing tube and cooperates with the synchronous dosing mechanism. A rotating guide assembly connected to the rotating ring is arranged in the protective tube. The dosing tube can drive the synchronous dosing mechanism to move through the rotating ring to pump the liquid medicine in the piston cylinder into the dosing tube. At the same time, under the action of the rotating guide assembly, the rotating ring is driven to rotate to adjust the coordination state between the rotating ring and the synchronous dosing mechanism.

[0012] As a further solution of the present invention: the grabbing mechanism includes a plurality of through grooves opened at the end of the protective tube and distributed equidistantly around the circumference, a first connecting rod and a second connecting rod are rotatably installed in the through grooves, the first connecting rod is fixedly connected to the grabbing plate, and a sliding assembly connected to the second connecting rod is provided on the first connecting rod.

[0013] As a further solution of the present invention: the sliding assembly includes a sliding groove opened on the first connecting rod, a limit plate is slidably installed in the sliding groove, a limit rod is fixed on the limit plate, a slot is opened on the second connecting rod and is slidably connected to the limit rod, and a supporting structure connected to the first connecting rod and the second connecting rod is provided on the dosing tube.

[0014] As a further solution of the present invention: the support structure includes a first hinged rod and a second hinged rod hinged on the drug delivery tube, the first hinged rod is hinged to the first connecting rod, and the second hinged rod is hinged to the second connecting rod.

[0015] As a further solution of the present invention: the synchronous drug delivery mechanism includes a delivery pipe and a guide pipe fixedly mounted on the piston cylinder, the delivery pipe is connected to the drug delivery pipe, and a pumping assembly is arranged in the piston cylinder.

[0016] As a further solution of the present invention: the pumping assembly includes a piston disc slidably installed in the piston cylinder, a limiting ring abutting against the piston disc is fixed in the piston cylinder, and an elastic structure connected to the piston disc is arranged on the piston cylinder.

[0017] As a further solution of the present invention: the elastic structure comprises a push rod slidably mounted on the piston cylinder and fixedly connected to the piston disc, a movable plate is fixed to one end of the push rod away from the piston disc, and a No. 2 spring abutting against the movable plate is sleeved on the push rod;

[0018] It also includes a straight groove opened on the protection tube, and a limiting column slidably connected to the straight groove is fixed on the movable plate, and the limiting column is abutted and matched with the rotating ring.

[0019] As a further solution of the present invention: the rotating guide assembly includes a limiting groove opened on the rotating ring and cooperating with the limiting column, a limiting block is fixed on the rotating ring, and a guide groove slidably connected to the limiting block is opened on the inner wall of the protective tube.

[0020] A method for using a gallstone removal device for grabbing and administering medicine, comprising the following steps:

[0021] Step 1: Insert the protective tube into the hole created during surgery and ensure that the grab plate is located at the gallstone position;

[0022] Step 2: When the gallstone needs to be removed, the drug delivery tube can be manually pushed toward the inside of the protective tube through the push ring, and the grabbing mechanism is driven to move, so that the angle between the grabbing plates increases;

[0023] Step 3: The drug delivery tube will also drive the rotating ring to move, and push the drug solution in the piston cylinder into the drug delivery tube through the synchronous drug delivery mechanism to be delivered to the patient's body. When the opening angle of the grab plate reaches the maximum, the rotating ring rotates under the action of the rotating guide component to reset the synchronous drug delivery mechanism.

[0024] Step 4: At this time, the dosing tube can be gradually controlled to move toward the initial position, and the angle between the grabbing plates can be controlled to decrease through the grabbing mechanism to grab the gallstones. After grabbing the gallstones, the opening angle of the grabbing plates is greater than the initial state, making it impossible for the dosing tube to be reset, thereby ensuring that the piston cylinder will not administer the drug during the process of releasing the gallstones.

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows: the present application can synchronously administer medication during the gallstone removal process, and by adjusting the coordination state of the rotating ring and the synchronous medication mechanism, it is ensured that the medicine liquid will not be discharged when the removed gallstone is released. When the gallstone is removed, the protective tube can be controlled to be inserted into the patient's body. At the same time, the medication tube can be controlled to move toward the inside of the protective tube by the pushing ring. Under the action of the medication tube, the grabbing plate is controlled to gradually open by the grabbing mechanism. At the same time, the medication tube will also drive the synchronous medication mechanism to move, and the medicine liquid in the piston cylinder is transported into the patient's body through the medication tube. When the opening angle of the grabbing plate reaches the maximum, the medicine liquid in the piston cylinder is transported. The synchronous medication mechanism is automatically reset. At this time, the control The drug delivery tube is made to gradually move toward the initial position, and under the action of the grasping mechanism, the grasping plate is controlled to gradually close to grasp the gallstones. When the grasping is completed, the protective tube can be controlled to be separated from the patient's body. Since the grasping plate grasps the gallstones and cannot be completely closed, under the action of the rotating guide component, the rotating ring and the synchronous drug delivery mechanism are ensured to be in a separated state. Therefore, during the process of releasing the gallstones, the piston cylinder will not deliver the drug. When the gallstones are released, the grasping plate is reset, and under the action of the rotating guide component, the rotating ring is coordinated with the synchronous drug delivery mechanism again, thereby achieving synchronous drug delivery when grasping the gallstones, and ensuring that the medicine liquid will not be discharged when releasing the gallstones. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic structural diagram of an embodiment of a gallstone removal device for grabbing and drug administration.

[0027] Figure 2 A schematic structural diagram of another angle of an embodiment of a gallstone removal device for grabbing and drug administration.

[0028] Figure 3 A schematic diagram of the half-section structure of an embodiment of a gallstone removal device for grabbing and drug administration.

[0029] Figure 4 for Figure 3 A schematic diagram of the enlarged structure at point A in the middle.

[0030] Figure 5 A schematic diagram of the structure of a grabbing mechanism and a grabbing plate in one embodiment of a gallstone removal device that combines grabbing and drug administration.

[0031] Figure 6 A schematic diagram of the exploded structure of a portion of the grabbing mechanism in one embodiment of a gallstone removal device that combines grabbing and drug administration.

[0032] Figure 7 A schematic diagram of the connection relationship between a portion of a synchronous drug delivery mechanism and a portion of a rotating guide assembly in an embodiment of a gallstone removal device for grabbing and drug delivery.

[0033] Figure 8 A schematic diagram of the exploded structure of part of the synchronous drug delivery mechanism and part of the rotation guide assembly in one embodiment of a gallstone removal device for grabbing and drug delivery.

[0034] Fig. 9 A schematic diagram of a partially half-sectioned structure of an embodiment of a gallstone removal device for grabbing and drug administration.

[0035] In the figure: 1, protective tube; 101, first transverse groove; 102, first inclined groove; 103, second transverse groove; 104, second inclined groove; 105, third transverse groove; 106, third inclined groove; 107, fourth transverse groove; 108, fourth inclined groove; 2, through groove; 3, drug delivery tube; 301, push ring; 4, No. 1 spring; 5, first connecting rod; 6, grab plate; 7, slide groove; 8, limit plate; 9, second connecting rod; 10, clamping groove; 11, limit rod; 12, first hinge rod; 13, second hinge rod; 14, piston cylinder; 15, delivery pipe; 16, guide pipe; 17, piston disc; 18, limit ring; 19, push rod; 20, movable plate; 21, No. 2 spring; 22, limit column; 23, straight groove; 24, rotating ring; 2401, limit groove; 25, limit block. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] In addition, when an element in the present invention is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0038] See also Figures 1 to 9In an embodiment of the present invention, a gallstone removal device for grabbing and drug administration includes: a protective tube 1, a drug administration tube 3, a push ring 301, a No. 1 spring 4, a grabbing mechanism, a grabbing plate 6, a piston cylinder 14, a synchronous drug administration mechanism, a rotating ring 24, and a rotating guide assembly. In order to ensure that the gallstones can be administered synchronously during the removal process, and the drug solution will not be discharged when the removed gallstones are released, it is necessary to adjust the coordination state of the rotating ring 24 and the synchronous drug administration mechanism. Therefore, when removing gallstones, the protective tube 1 can be controlled to be inserted into the patient's body. At the same time, the drug administration tube 3 can be controlled to move toward the protective tube 1 by the push ring 301. Under the action of the drug administration tube 3, the grabbing plate 6 is controlled to gradually open by the grabbing mechanism. At the same time, the drug administration tube 3 will also drive the synchronous drug administration mechanism to move, and the drug solution in the piston cylinder 14 is transported to the patient's body through the drug administration tube 3. When the grabbing plate 6 After the opening angle reaches the maximum, the drug delivery in the piston cylinder 14 is completed, and the synchronous drug delivery mechanism is automatically reset. At this time, the drug delivery tube 3 is controlled to gradually move toward the initial position, and under the action of the grasping mechanism, the grasping plate 6 is controlled to gradually close to grasp the gallstones. After the grasping is completed, the protective tube 1 can be controlled to be separated from the patient's body. Since the grasping plate 6 grasps the gallstones and cannot be completely closed, under the action of the rotating guide component, it is ensured that the rotating ring 24 and the synchronous drug delivery mechanism are in a separated state. Therefore, in the process of releasing the gallstones, the piston cylinder 14 will not deliver the drug. When the gallstones are released, the grasping plate 6 is reset, and under the action of the rotating guide component, the rotating ring 24 cooperates with the synchronous drug delivery mechanism again, thereby achieving synchronous drug delivery when grasping the gallstones, and ensuring that the drug solution will not be discharged when releasing the gallstones.

[0039] The details are as follows, including:

[0040] A protective tube 1, and a drug delivery tube 3 slidably mounted in the protective tube 1, a push ring 301 being fixed to the end of the drug delivery tube 3, and a spring 4 abutting against the push ring 301 being sleeved on the drug delivery tube 3;

[0041] Also includes:

[0042] See also Figure 1-Figure 3 , Figure 5 , Figure 6, a grabbing mechanism is arranged on the protection tube 1 and connected to the drug delivery tube 3, and a plurality of grabbing plates 6 equidistantly distributed in a circumference are connected to the grabbing mechanism. When the drug delivery tube 3 moves, the grabbing mechanism can drive the grabbing plates 6 to move toward or away from each other. The grabbing mechanism includes a plurality of through grooves 2 equidistantly distributed in a circumference and opened at the end of the protection tube 1, and a first connecting rod 5 and a second connecting rod 9 are rotatably installed in the through grooves 2. The first connecting rod 5 is fixedly connected to the grabbing plate 6, and a sliding component connected to the second connecting rod 9 is arranged on the first connecting rod 5, wherein, The sliding assembly includes a sliding groove 7 opened on the first connecting rod 5, a limiting plate 8 is slidably installed in the sliding groove 7, a limiting rod 11 is fixed on the limiting plate 8, a slot 10 slidingly connected to the limiting rod 11 is opened on the second connecting rod 9, and a supporting structure connected to the first connecting rod 5 and the second connecting rod 9 is provided on the dosing tube 3. The above-mentioned supporting structure includes a first hinged rod 12 and a second hinged rod 13 hinged on the dosing tube 3, the first hinged rod 12 is hinged to the first connecting rod 5, and the second hinged rod 13 is hinged to the second connecting rod 9.

[0043] In detail, when performing a gallstone removal operation, it is generally necessary to make an opening in the patient's abdominal cavity, and after confirming the bottom of the gallbladder, make a small cut at the bottom. The pre-cut small opening can be covered with a large gauze to prevent bile from contaminating the abdominal cavity and to prevent saline from flowing into the abdominal cavity during choledochoscopy and stone removal. At this time, the gallstones can be removed by the device. In the initial state, the No. 1 spring 4 is in a compressed state, so that the drug delivery tube 3 is controlled by the push ring 301 to be at the end of the stroke away from the protective tube 1. The drug delivery tube 3 will control the first connecting rod 5 and the second connecting rod 9 to be in a parallel position through the first hinge rod 12 and the second hinge rod 13, so that the opening angle of the grab plate 6 is minimized. At the same time, under the action of the slot 10, the spacing between the limit plates 8 that fix the limit rod 11 is At least, when it is necessary to grab the gallstones, at this time, the pushing ring 301 can be manually pushed to move, and the drug delivery tube 3 can be controlled to move toward the protective tube 1. The drug delivery tube 3 will also drive the first hinged rod 12 and the second hinged rod 13 to move. The first hinged rod 12 and the second hinged rod 13 will respectively control the first connecting rod 5 and the second connecting rod 9 to rotate around the hinge point, so that the opening angle between the grabbing plates 6 increases. Since the rotation radius of the second connecting rod 9 is greater than the rotation radius of the first connecting rod 5, under the action of the slot 10, the limit plate 8 fixed with the limit rod 11 slides along the length direction of the slide slot 7, and the spacing between the limit plates 8 will gradually increase until the grabbing plate 6 is opened to the maximum. At this time, the limit plate 8 will not hinder the grabbing of the gallstones.

[0044] Preferably, when grabbing the gallstone, the grab plate 6 can be controlled to move toward the gallstone position until the gallstone is located between the grab plates 6. At this time, the force applied to the push ring 301 is slowly removed, the No. 1 spring 4 is elastically released, and drives the dosing tube 3 to move toward the initial position. The dosing tube 3 also controls the first connecting rod 5 and the second connecting rod 9 to rotate toward the initial angle through the first hinge rod 12 and the second hinge rod 13, so that the angle between the grab plates 6 gradually decreases. At the same time, under the action of the slot 10 and the limit rod 11, the limit plate 8 moves along the length direction of the slide slot 7, and the limit plate 8 is The spacing between them gradually decreases, and when the angle between the grabbing plates 6 no longer changes, it means that the gallstones are captured in the grabbing plates 6, and under the action of the limiting plates 8, it is ensured that the gallstones will not escape through the ends of the grabbing plates 6, thereby avoiding the problem of the patient being injured again due to the gallstones falling onto other tissues of the patient during the grabbing process. When the gallstones are captured, the grabbing plates 6 will not close under the action of the gallstones, and therefore, the second connecting rod 9 will be separated from the first connecting rod 5, leaving a certain gap in the middle of the first connecting rod 5, and the gallstones will be stuck in the gap to increase the gripping force on the gallstones.

[0045] See also Figure 1-Figure 3 , Figure 7 , Figure 8 , a piston cylinder 14 is fixedly mounted on the protection tube 1, a synchronous drug delivery mechanism is arranged in the piston cylinder 14, and the synchronous drug delivery mechanism includes a delivery pipe 15 and a guide pipe 16 fixedly mounted on the piston cylinder 14, the delivery pipe 15 is connected with the drug delivery tube 3, a pumping assembly is arranged in the piston cylinder 14, wherein the pumping assembly includes a piston disc 17 slidably mounted in the piston cylinder 14, a limiting ring 18 abutting and cooperating with the piston disc 17 is fixed in the piston cylinder 14, and a stop ring 18 abutting and cooperating with the piston disc 17 is arranged on the piston cylinder 14 The elastic structure connected to the piston disc 17, the elastic structure mentioned above includes a push rod 19 slidably mounted on the piston cylinder 14 and fixedly connected to the piston disc 17, a movable plate 20 is fixed to the end of the push rod 19 away from the piston disc 17, and a No. 2 spring 21 abutting against the movable plate 20 is sleeved on the push rod 19; it also includes a straight groove 23 opened on the protective tube 1, a limit column 22 slidably connected to the straight groove 23 is fixed on the movable plate 20, and the limit column 22 abuts against the rotating ring 24.

[0046] Furthermore, two one-way valves are installed on the piston cylinder 14, one of which is connected to the guide tube 16, and the other one-way valve is connected to the delivery tube 15. The guide tube 16 is connected to the medicine tank. The delivery tube 15 is used to transport the medicine in the piston cylinder 14 to the drug delivery tube 3. In the initial state, the No. 2 spring 21 is in a compressed state. Under the action of the movable plate 20, the piston disc 17 is controlled by the push rod 19 to be in abutment with the limit ring 18, so that the limit column 22 is located at the end of the stroke on one side of the straight groove 23. Under the action of the guide tube 16, the piston cylinder 14 is filled with medicine. When it is necessary to grab the gallstones, the drug delivery tube 3 can be controlled to move toward the protective tube 1 at this time, and the rotating ring 24 can be driven to move, thereby driving the limit column 22 to move. The limit column 22 will move along the length direction of the straight groove 23 and pass through the movable plate 20. The push rod 19 is driven to move. Under the action of the push rod 19, the No. 2 spring 21 is compressed. The push rod 19 also drives the piston disk 17 to move. Under the action of the piston disk 17, the medicine liquid in the piston cylinder 14 is transported to the drug delivery tube 3 through the delivery tube 15. At the same time, under the action of the drug delivery tube 3, the opening angle of the grab plate 6 is increased. When the opening angle of the grab plate 6 reaches the maximum, the medicine delivery in the piston cylinder 14 is completed. At this time, under the action of the rotating guide component, the rotating ring 24 is rotated by a certain angle. Under the action of the rotating guide component, the limit column 22 is separated from the rotating ring 24. At this time, the No. 2 spring 21 is elastically released, and the push rod 19 is controlled by the movable plate 20 to move in a direction away from the piston cylinder 14, thereby driving the piston disk 17 to move, so as to suck the medicine in the medicine tank into the piston cylinder 14 through the guide tube 16.

[0047] Preferably, when the grabbing plate 6 grabs the gallstones, the dosing tube 3 moves toward the initial position and reduces the angle between the grabbing plates 6. Since the gallstones have a certain size, the dosing tube 3 cannot return to the initial position. Therefore, under the action of the rotating guide assembly, the rotating ring 24 cannot cooperate with the limiting column 22, thereby ensuring that the medicine will not be released when the gallstones are released.

[0048] See also Figure 3 , Figure 4 , Figure 7-Figure 9, a rotating ring 24 is rotatably mounted on the dosing tube 3 and cooperates with the synchronous dosing mechanism. A rotating guide assembly connected to the rotating ring 24 is arranged in the protective tube 1. The dosing tube 3 can drive the synchronous dosing mechanism to move through the rotating ring 24 to pump the liquid medicine in the piston cylinder 14 into the dosing tube 3. At the same time, under the action of the rotating guide assembly, the rotating ring 24 is driven to rotate to adjust the coordination state of the rotating ring 24 and the synchronous dosing mechanism. The rotating guide assembly includes a limiting groove 2401 opened on the rotating ring 24 and cooperating with the limiting column 22. A limiting block 25 is fixed on the rotating ring 24. A guide groove slidably connected to the limiting block 25 is opened on the inner wall of the protective tube 1.

[0049] Furthermore, the guide groove can be divided into multiple sections, namely the first transverse groove 101, the first oblique groove 102, the second transverse groove 103, the second oblique groove 104, the third transverse groove 105, the third oblique groove 106, the fourth transverse groove 107, and the fourth oblique groove 108, and the first transverse groove 101, the first oblique groove 102, the second transverse groove 103, the second oblique groove 104, the third transverse groove 105, the third oblique groove 106, the fourth transverse groove 107, and the fourth oblique groove 108 are connected to each other in sequence. In the initial state, the limit block 25 is located at the connection position of the first transverse groove 101 and the fourth inclined groove 108, so that the rotating ring 24 is located on the side of the limit column 22 away from the piston cylinder 14. When it is necessary to grab the gallstone, the drug delivery tube 3 is driven to move toward the protection tube 1, and the grab plate 6 is controlled to open. At the same time, the drug delivery tube 3 also drives the rotating ring 24 to move, so that the limit block 25 slides along the length direction of the first transverse groove 101, and the rotating ring 24 also controls the limit column 22 to move along the straight line. The groove 23 moves in the length direction and controls the piston disc 17 to slide in the piston cylinder 14, so that the liquid medicine in the piston cylinder 14 is delivered to the drug delivery tube 3 and enters the patient's body. When the limit block 25 moves to the connection position of the first transverse groove 101 and the first inclined groove 102, the limit block 25 will enter the first inclined groove 102 and drive the rotating ring 24 to rotate, thereby driving the limit groove 2401 to move. When the limit block 25 moves to the connection position of the first inclined groove 102 and the second transverse groove 103, The medicine delivery in the piston cylinder 14 is completed, and the rotating ring 24 rotates to the maximum angle. At this time, the limit groove 2401 just moves to the matching position with the limit column 22, and the No. 2 spring 21 is elastically released, and drives the movable plate 20 fixed with the limit column 22 to move in the direction away from the piston cylinder 14, so as to suck the medicine into the piston cylinder 14 again through the guide tube 16 until the limit column 22 returns to the initial position. At this time, the opening angle of the grab plate 6 reaches the maximum, and the gallstones can be grabbed and processed.

[0050] Preferably, when it is necessary to grab the gallstone, the dosing tube 3 is controlled to move toward the initial position, and the rotating ring 24 is driven to move, so that the limit block 25 moves along the length direction of the second transverse groove 103. When the limit block 25 disengages from the second transverse groove 103 and enters the second inclined groove 104, the rotating ring 24 is rotated again by a certain angle, so that the limit groove 2401 is separated from the limit column 22, ensuring that the limit column 22 cannot enter the limit groove 2401, and the dosing tube 3 continues to move, so that the limit block 25 moves along the length direction of the third transverse groove 105. Since there are gallstones grabbed in the grabbing plate 6, the opening angle of the grabbing plate 6 will be greater than the initial state, making it impossible for the rotating ring 24 to return to the initial position. Therefore, the limit block 25 will stop moving before entering the third inclined groove 106 or before entering, thereby ensuring that when the grabbed gallstones are released, the rotating ring 24 The ring 24 will no longer administer medication. After the release is completed, the rotating ring 24 needs to be controlled to reset. When the limit block 25 moves into the third transverse groove 105 again, the limit block 25 continues to move and enters the third inclined groove 106, so that the rotating ring 24 rotates again and controls the limit groove 2401 to move to a position cooperating with the limit column 22. When the limit block 25 disengages from the third inclined groove 106 and enters the fourth transverse groove 107, the limit groove 2401 will pass over the limit column 22. When the limit block 25 enters the fourth inclined groove 108, the rotating ring 24 rotates toward the initial angle until the limit block 25 returns to the connection position between the first transverse groove 101 and the fourth inclined groove 108, and the limit groove 2401 is separated from the limit column 22 again. At this time, when the medication tube 3 is pushed to move toward the protective tube 1, the rotating ring 24 will drive the limit column 22 to move synchronously, and medication is performed again.

[0051] A method for using a gallstone removal device for grabbing and administering medicine, comprising the following steps:

[0052] Step 1: insert the protective tube 1 into the hole opened during surgery on the patient, and ensure that the grab plate 6 is located at the gallstone position;

[0053] Step 2: When the gallstone needs to be removed, the drug delivery tube 3 can be manually pushed toward the inside of the protective tube 1 by the push ring 301, and the grabbing mechanism is driven to move, so that the angle between the grabbing plates 6 increases;

[0054] Step 3: The drug delivery tube 3 also drives the rotating ring 24 to move, and pushes the drug solution in the piston cylinder 14 into the drug delivery tube 3 through the synchronous drug delivery mechanism to be delivered to the patient's body. When the opening angle of the grab plate 6 reaches the maximum, the rotating ring 24 rotates under the action of the rotating guide assembly to reset the synchronous drug delivery mechanism.

[0055] Step 4: At this time, the dosing tube 3 can be gradually controlled to move toward the initial position, and the angle between the grabbing plates 6 can be controlled to decrease through the grabbing mechanism to grab the gallstones. After grabbing the gallstones, the opening angle of the grabbing plates 6 is greater than the initial state, making it impossible for the dosing tube 3 to be reset, thereby ensuring that the piston cylinder 14 will not administer the drug during the process of releasing the gallstones.

[0056] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0057] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A gallstone removal device for grabbing and administering, comprising: A protective tube (1), and a drug delivery tube (3) slidably mounted in the protective tube (1), a push ring (301) being fixed to the end of the drug delivery tube (3), and a first spring (4) abutting against the push ring (301) being sleeved on the drug delivery tube (3); It is characterized by further comprising: a gripping mechanism, arranged on the protection tube (1) and connected to the drug delivery tube (3), the gripping mechanism being connected to a plurality of gripping plates (6) equidistantly distributed around a circumference, the gripping mechanism being capable of driving the gripping plates (6) to move in a direction of approaching or moving away from each other when the drug delivery tube (3) moves; A piston cylinder (14) is fixedly mounted on the protection tube (1), and a synchronous drug delivery mechanism is arranged in the piston cylinder (14); A rotating ring (24) is rotatably mounted on the dosing tube (3) and cooperates with the synchronous dosing mechanism. A rotating guide assembly connected to the rotating ring (24) is arranged in the protective tube (1). The dosing tube (3) can drive the synchronous dosing mechanism to move through the rotating ring (24) to pump the liquid medicine in the piston cylinder (14) into the dosing tube (3). At the same time, under the action of the rotating guide assembly, the rotating ring (24) is driven to rotate to adjust the coordination state between the rotating ring (24) and the synchronous dosing mechanism.

2. A gallstone removal device for grabbing and administering according to claim 1, characterized in that: The grabbing mechanism comprises a plurality of through grooves (2) which are opened at the end of the protection tube (1) and are equidistantly distributed around the circumference. A first connecting rod (5) and a second connecting rod (9) are rotatably mounted in the through grooves (2). The first connecting rod (5) is fixedly connected to the grabbing plate (6). A sliding assembly connected to the second connecting rod (9) is arranged on the first connecting rod (5).

3. A gallstone removal device for grabbing and administering according to claim 2, characterized in that: The sliding assembly comprises a sliding groove (7) provided on the first connecting rod (5), a limit plate (8) being slidably installed in the sliding groove (7), a limit rod (11) being fixed on the limit plate (8), a clamping groove (10) being provided on the second connecting rod (9) and being slidably connected to the limit rod (11), and a supporting structure connected to the first connecting rod (5) and the second connecting rod (9) being provided on the dosing tube (3).

4. A gallstone removal device for grabbing and administering according to claim 3, characterized in that: The support structure comprises a first hinged rod (12) and a second hinged rod (13) hinged on the drug delivery tube (3), wherein the first hinged rod (12) is hinged to the first connecting rod (5), and the second hinged rod (13) is hinged to the second connecting rod (9).

5. The device for removing gallstones in combination with grabbing and administering medicine according to claim 1, characterized in that: The synchronous drug delivery mechanism comprises a delivery pipe (15) and a guide pipe (16) fixedly mounted on the piston cylinder (14); the delivery pipe (15) is connected to the drug delivery pipe (3); and a pumping assembly is arranged in the piston cylinder (14).

6. A gallstone removal device for grabbing and administering according to claim 5, characterized in that: The pumping assembly comprises a piston disc (17) slidably mounted in the piston cylinder (14), a limiting ring (18) abutting against the piston disc (17) is fixed in the piston cylinder (14), and an elastic structure connected to the piston disc (17) is arranged on the piston cylinder (14).

7. A gallstone removal device for grabbing and administering according to claim 6, characterized in that: The elastic structure comprises a push rod (19) slidably mounted on the piston cylinder (14) and fixedly connected to the piston plate (17); a movable plate (20) is fixed to one end of the push rod (19) away from the piston plate (17); and a second spring (21) is sleeved on the push rod (19) and abuts against the movable plate (20); It also includes a straight groove (23) formed on the protection tube (1), a limiting column (22) slidably connected to the straight groove (23) is fixed on the movable plate (20), and the limiting column (22) is in abutment with the rotating ring (24).

8. The device for removing gallstones in combination with grabbing and administering medicine according to claim 1, characterized in that: The rotating guide assembly comprises a limiting groove (2401) which is provided on the rotating ring (24) and cooperates with the limiting column (22); a limiting block (25) is fixed on the rotating ring (24); and a guide groove which is slidably connected to the limiting block (25) is provided on the inner wall of the protective tube (1).

9. A method for using a grabbing and dosing gallstone removal device, using the grabbing and dosing gallstone removal device according to any one of claims 1 to 8, characterized in that: The following steps are involved: Step 1: insert the protective tube (1) into the hole opened during surgery on the patient, and ensure that the grabbing plate (6) is located at the gallstone position; Step 2: When the gallstone needs to be removed, the drug delivery tube (3) can be manually pushed toward the inside of the protective tube (1) by the pushing ring (301), and the grabbing mechanism is driven to move, so that the angle between the grabbing plates (6) increases; Step 3: The drug delivery tube (3) also drives the rotating ring (24) to move, and pushes the drug solution in the piston cylinder (14) into the drug delivery tube (3) through the synchronous drug delivery mechanism, so as to be delivered into the patient's body. When the opening angle of the grab plate (6) reaches the maximum, the rotating ring (24) rotates under the action of the rotating guide component, so that the synchronous drug delivery mechanism is reset; Step 4: At this time, the dosing tube (3) can be gradually controlled to move toward the initial position, and the angle between the grabbing plates (6) can be controlled to decrease through the grabbing mechanism to grab the gallstones. After grabbing the gallstones, the opening angle of the grabbing plates (6) is greater than the initial state, making it impossible for the dosing tube (3) to be reset, thereby ensuring that the piston cylinder (14) will not administer the drug during the process of releasing the gallstones.

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