Minimally invasive stone extractor for stone surgery and use method

Abstract

The invention discloses a minimally invasive stone extractor for stone surgery and a using method, and relates to the technical field of medical instruments, the minimally invasive stone extractor comprises a main body, a groove is formed in the side wall of the main body, a stone extracting barrel is fixedly mounted in the groove, a stone extracting barrel is arranged at the bottom of the stone extracting barrel, and a sliding assembly is mounted in the stone extracting barrel and is in transmission connection with the stone extracting barrel; a water spraying pipe and a water return pipe are arranged at the bottom of the main body, both face the water taking stone and communicate with a first mounting head, the water return pipe communicates with a second mounting head, the first mounting head and the second mounting head are detachably connected with the outer wall of the main body, and the first mounting head is used for communicating with an external water supply system; the second mounting head is used for communicating with an external water return system. The multifunctional calculus removing device integrates multiple functions of calculus removing, flushing, suction, illumination imaging and the like, the operation steps are simplified, and the operation efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a minimally invasive lithotripter for stone surgery and a use method thereof. Background Art

[0002] Stones are a common medical problem, including kidney stones and gallstones, which seriously affect the quality of life of patients. Traditional stone surgery often requires a large incision, which is not only traumatic, but also takes a long time to recover after surgery. It may also bring a series of complications. With the development of minimally invasive technology, minimally invasive surgical methods such as percutaneous nephrolithotomy and laparoscopic lithotomy have gradually been widely used.

[0003] Existing minimally invasive surgical methods still have problems such as complex operation, difficulty in stone removal, and damage to surrounding tissues. Therefore, it is particularly important to develop a more efficient and safe minimally invasive stone removal device. Summary of the invention

[0004] The purpose of the present invention is to provide a minimally invasive lithotripsy device and a method of use thereof, so as to solve the problems existing in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following solution: The present invention provides a minimally invasive lithotripter for stone surgery, comprising a main body, a side wall of the main body being provided with a groove, a stone removal tube being fixedly installed in the groove, a stone removal tube being provided at the bottom of the stone removal tube, a sliding assembly being installed in the stone removal tube, the sliding assembly being transmission-connected with the stone removal tube, a water spray pipe and a water return pipe being respectively provided at the bottom of the main body, the water spray pipe and the water return pipe both being directed toward the stone removal, the water spray pipe being connected with a first mounting head, the water return pipe being connected with a second mounting head, the first mounting head and the second mounting head being respectively detachably connected to the outer wall of the main body, the first mounting head being used for connecting with an external water supply system, and the second mounting head being used for connecting with an external water return system.

[0006] Preferably, the sliding assembly includes a motor fixed to the inner wall of the stone removing tube, the motor output shaft is fixed with a gear, the gear is meshed with a rack, the rack is slidingly connected to the inner wall of the stone removing tube, a movable block is fixed to the bottom of the rack, and the movable block is connected to the stone removing transmission.

[0007] Preferably, an upper stroke plate is fixedly connected to the inner wall of the stone removing cylinder, a lower stroke plate is provided below the upper stroke plate, the top of the rack passes through the lower stroke plate and is fixedly connected to a limit plate, and the limit plate is in contact with the upper stroke plate.

[0008] Preferably, the stone removing device comprises a plurality of splints rotatably connected to the bottom of the stone removing tube, a torsion spring is provided at the rotatable connection between the splint and the stone removing tube, a friction strip is fixedly connected to the side wall of the splint close to the bottom, a connecting rod is fixedly connected to the side wall of the splint, and the top of the connecting rod is in contact with the movable block.

[0009] Preferably, a lighting lamp and a camera are respectively provided on the bottom surface of the main body.

[0010] Preferably, the main body is respectively provided with a first connecting pipe and a second connecting pipe, the bottom of the first connecting pipe is connected to the water spray pipe, the top of the first connecting pipe is connected to the first mounting head, the bottom of the second connecting pipe is connected to the return pipe, the top of the second connecting pipe is connected to a filter box, the filter box is connected to the second mounting head, and a placement groove is opened on the main body, the filter box is located in the placement groove and is detachably connected to the placement groove.

[0011] Preferably, a filter screen is fixedly connected in the filter box, and filter cotton is provided below the filter screen.

[0012] Preferably, the top of the main body is electrically connected to an operation panel via a wire, and the operation panel is provided with a plurality of buttons.

[0013] Preferably, a connector is provided on the top of the main body, the connector is electrically connected to the camera, and the connector is used to communicate with an external imaging device.

[0014] The present invention discloses the following technical effects:

[0015] 1. Minimally invasive: The present invention adopts a slender tubular main structure and a specially designed stone removal device, which can enter the body through a tiny surgical channel, greatly reducing surgical trauma and postoperative recovery time.

[0016] 2. Efficient stone removal: The stone removal uses specially designed splints and anti-slip materials, which can firmly clamp stones of various sizes and shapes, improving the efficiency of stone removal.

[0017] 3. Protect surrounding tissues: The design and operation methods of the lithotripter are designed to reduce damage to surrounding tissues and reduce the risk of surgical complications.

[0018] 4. Visual operation: The integrated lighting and imaging system provides a clear surgical field of view, assists doctors in performing precise operations, and improves the safety and success rate of the operation.

[0019] 5. Multifunctionality: The present invention integrates multiple functions such as stone removal, flushing, recovery and lighting imaging, which simplifies the surgical steps and improves the surgical efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 It is a schematic diagram of the internal structure of the main body of the present invention;

[0023] Figure 3 It is a schematic diagram of the internal structure of the filter box of the present invention;

[0024] Figure 4 It is a schematic diagram of the internal structure of the stone removal tube of the present invention;

[0025] Figure 5 Take a top view of the stone for the present invention;

[0026] Figure 6 This is a schematic diagram of the position structure of the lighting lamp and the camera of the present invention;

[0027] In the figure: 1. main body; 2. groove; 3. stone taking tube; 4. stone taking; 5. return pipe; 6. water spray pipe; 7. line body; 8. joint; 9. operation panel; 10. button; 11. first connecting pipe; 12. second connecting pipe; 13. first mounting head; 14. second mounting head; 15. placement slot; 16. filter box; 17. filter net; 18. filter cotton; 19. upper stroke plate; 20. lower stroke plate; 21. limit plate; 22. rack; 23. gear; 24. motor; 25. movable block; 26. connecting rod; 27. splint; 28. friction strip; 29. ​​camera; 30. lighting lamp. DETAILED DESCRIPTION

[0028] Stone disease is a common clinical disease, mainly including kidney stones, gallbladder stones, etc. Traditional stone surgery mostly adopts open surgery, which is traumatic, slow to recover, and has many complications. With the continuous development of minimally invasive technology, minimally invasive stone removal surgery has gradually replaced traditional surgery and become the main means of treating stone disease. As an important tool for minimally invasive surgery, the structure and function of minimally invasive lithotripters are constantly improved to improve the surgical effect and safety.

[0029] The overall structure of the minimally invasive lithotripter: The minimally invasive lithotripter is a medical device that integrates multiple technologies such as endoscopic technology, laser lithotripsy technology, and negative pressure suction technology. It usually consists of a sheath, a standard mirror, a lithotripter, an endoscope, a guide wire, a cannula, a connecting device, and other parts. Sheath: The sheath is the main part of the minimally invasive lithotripter, which is used to accommodate the standard mirror and lithotripter and provide a surgical channel. The sheath is usually made of high-quality stainless steel or titanium alloy, with sufficient strength and rigidity to ensure stability and reliability during surgery. Standard mirror: The standard mirror is used to retrograde into the natural cavity of the human body, such as the urethra, bladder, ureter, etc. under visual conditions until it reaches the location of the stone. The standard mirror has a clear field of view and flexible rotation performance, which can help doctors accurately find the location of the stone. Lithotripter: The lithotripter is used to perform lithotripsy using a holmium laser after the stone is found. The end of the lithotripter is usually equipped with a laser transmitter that can emit a high-energy laser beam to break the stone into powder. Endoscope: The endoscope is used to observe the situation at the surgical site and help doctors determine the size, location and shape of the stones. Endoscopes are usually equipped with high-definition cameras and light source systems to provide a clear surgical field of view. Guidewire: The guidewire is used to guide the lithotriptor or endoscope into the location of the stone during surgery. The guidewire is usually made of a soft and rigid material to ensure smooth passage through the complex human structure. Cannula: The cannula is used to fix the endoscope and guidewire to prevent them from shifting or falling off during surgery. The cannula is usually made of transparent or translucent materials to facilitate doctors to observe the situation at the surgical site. Connecting device: The connecting device is used to connect the endoscope, guidewire, cannula and other components together to form a complete minimally invasive stone removal system. The connecting device usually has reliable connection performance and sealing performance to ensure stability and safety during surgery.

[0030] The specific structure of the minimally invasive lithotripter: Shuotong mirror holmium laser lithotripsy and stone removal system: Shuotong mirror holmium laser lithotripsy and stone removal system is an advanced minimally invasive stone removal device, which combines holmium laser lithotripsy technology and negative pressure suction technology, and can complete lithotripsy and stone removal operations at the same time. The system consists of a mirror sheath, a standard mirror, a lithotripsy mirror, a negative pressure guide and other parts. Mirror sheath and standard mirror: The mirror sheath and the standard mirror are combined together to enter the natural cavity of the human body, such as the urethra, bladder, ureter, etc., by retrograde until they reach the location of the stone. The standard mirror has a clear field of view and flexible rotation performance, which can help doctors accurately find the location of the stone. Lithotripsy mirror and negative pressure guide: After finding the stone, the doctor withdraws the standard mirror, retains the mirror sheath, and connects the negative pressure guide. Then, the lithotripsy mirror is placed in the mirror sheath, and the holmium laser is used for lithotripsy. During the lithotripsy process, the negative pressure guide will use negative pressure to break the stone into powder and "suck" it out of the body. This simultaneous lithotripsy and lithotripsy method greatly improves the efficiency of the operation and reduces the pain of the patient. Unique advantages: The Shuotong mirror holmium laser lithotripsy and lithotripsy system uses the natural cavity of the human body for surgery, which is minimally invasive and nearly non-invasive. In addition, the system is also suitable for some special cases, such as patients with solitary kidney, horseshoe kidney, bleeding tendency, spinal deformity, renal insufficiency and other stones. Minimally invasive gallbladder preservation and stone removal surgery special instrument: Minimally invasive gallbladder preservation and stone removal surgery special instrument is a minimally invasive stone removal device used for gallbladder stone surgery. The instrument consists of an endoscope, a cannula, a guide wire and other parts. Endoscope and cannula: A cannula is fixed on the endoscope, and a movable guide wire is set in the cannula. Through the endoscope to observe the situation of the gallbladder wall stones, the doctor can use water pressure flushing and a guide wire to peel off the mucosa, muscle layer and even the serosal layer, thereby removing the tiny stones and bile mud embedded in the gallbladder wall. Principle of surgery: The special instrument for minimally invasive gallbladder stone removal surgery observes the situation of the surgical site through an endoscope, and uses a guide wire and water pressure flushing technology to remove stones and bile sludge from the body. This surgical method retains the function of the gallbladder and reduces the patient's pain and postoperative complications. Simple structure: The special instrument for minimally invasive gallbladder stone removal surgery has a simple structure and is easy to operate. Through the combined use of an endoscope and a cannula, the doctor can clearly observe the situation of the surgical site and perform precise surgical operations. Minimally invasive percutaneous nephrolithotomy: Minimally invasive percutaneous nephrolithotomy is a minimally invasive surgical method for treating kidney stones. The minimally invasive percutaneous nephrolithotomy used in this operation consists of a percutaneous nephroscope, a laser lithotripter, and other parts. Percutaneous nephroscope: The percutaneous nephroscope is a slender mirror that can enter the kidney through an incision of about 0.7 cm. After entering the body, the mirror has a large range of transportation and swinging, and a clear field of view, which can help doctors accurately find the location of the stone. Laser lithotripter: The laser lithotripter is used to crush the stone using a laser after finding the stone. Laser lithotripsy is usually equipped with a high-energy laser beam emitter that can break the stones into powder. Surgical steps: Minimally invasive percutaneous nephrolithotomy usually includes three steps: puncture, establishment of a skin-kidney channel, and ureteroscopy to crush the stones.The doctor first selects a suitable puncture point on the back, and then uses the puncture needle to establish a skin-kidney channel. Next, the internal condition of the kidney is observed through a percutaneous nephroscope, and a laser lithotripter is used to crush the stones. Finally, the crushed stones are discharged from the body through the skin-kidney channel. Surgical advantages: Minimally invasive percutaneous nephrolithotomy has the advantages of less trauma, faster recovery, less risk, and lower cost. Compared with traditional open surgery, this surgical method can greatly reduce the amount of intraoperative bleeding and the difficulty of fixing the fistula tube after surgery. At the same time, the simple operation is conducive to the recovery of patients after surgery.

[0031] Technical features of minimally invasive lithotripters: Minimally invasive; The biggest feature of minimally invasive lithotripters is minimally invasiveness. By utilizing the body's natural cavities or only making a small incision on the skin (such as a percutaneous nephrolithotomy incision of about 0.7 cm), minimally invasive lithotripters can greatly reduce surgical trauma and postoperative recovery time. This minimally invasive nature not only relieves the patient's pain, but also reduces the surgical risk and incidence of complications. Visibility; minimally invasive lithotripters are usually equipped with endoscopes and high-definition camera systems, which can provide a clear surgical field of view. Doctors can observe the surgical site through an endoscope, determine the size, location and shape of the stones, and perform precise surgical operations. This visibility greatly improves the accuracy and safety of the operation. Synchronous lithotripsy and stone removal; some advanced minimally invasive lithotripters (such as the Shuotong Mirror Holmium Laser Lithotripsy and Stone Removal System) can simultaneously complete lithotripsy and stone removal operations. During the lithotripsy process, negative pressure suction technology is used to break the stones into powder and "suck" them out of the body. This simultaneous lithotripsy and stone removal method greatly improves surgical efficiency and reduces the patient's pain and postoperative recovery time. Wide range of indications: Minimally invasive lithotripters are suitable for many types of stone diseases, including kidney stones, gallbladder stones, etc. At the same time, for patients with stones in some special cases (such as solitary kidney, horseshoe kidney, bleeding tendency, spinal deformity, renal insufficiency, etc.), minimally invasive lithotripters also have unique advantages. Easy to operate: Minimally invasive lithotripters are relatively easy to operate, and doctors can master their use through simple training. At the same time, due to the small surgical trauma and fast recovery, patients can also return to normal life and work more quickly after surgery.

[0032] Application cases of minimally invasive lithotripters: Kidney stone surgery. Kidney stones are a common urinary stone disease. Traditional kidney stone surgery mostly uses open surgery, which is traumatic and slow to recover. With the development of minimally invasive technology, minimally invasive surgical methods such as percutaneous nephrolithotomy are gradually replacing traditional surgical methods. In the Urology Department of a certain hospital, a patient with kidney stones underwent percutaneous nephrolithotomy. The doctor selected a suitable puncture point on the patient's back and established a skin-kidney channel with a puncture needle. Then, the inside of the kidney was observed through a percutaneous nephroscope, and the stones were crushed into powder using a laser lithotripter. Finally, the crushed stones were discharged from the body through the skin-kidney channel. The operation went smoothly, the patient recovered well after the operation, and no complications occurred. Gallstone surgery. Gallstones are a common biliary system disease. Traditional gallstone surgery mostly uses open surgery, which is traumatic and slow to recover. With the continuous development of laparoscopic technology, minimally invasive surgical methods such as laparoscopic cholecystectomy are gradually replacing traditional surgical methods. In the general surgery department of a certain hospital, a patient with gallstones underwent laparoscopic cholecystectomy. The doctor observed the inside of the gallbladder through a laparoscope and used a minimally invasive lithotripter to remove the stones and bile sludge from the body. The operation went smoothly, and the patient recovered well after the operation without any complications. At the same time, since the function of the gallbladder was preserved, the patient's quality of life was also improved. Ureteral stone surgery, ureteral stones are a common urinary stone disease. Traditional ureteral stone surgery mostly uses open surgery, which is very traumatic and slow to recover. With the development of ureteroscopic flexible surgery technology, minimally invasive surgical methods such as ureteroscopic holmium laser lithotripsy are gradually replacing traditional surgical methods.

[0033] In the Urology Department of a certain hospital, a patient with ureteral stones underwent ureteroscopic holmium laser lithotripsy. The doctor inserted the ureteroscope into the ureter through the urethra and used the holmium laser to break the stones into powder. The operation went smoothly and the patient recovered well without complications. At the same time, since no incision was made on the skin during the operation, the patient's pain and postoperative recovery time were greatly reduced.

[0034] As an advanced medical device, minimally invasive lithotripters play an important role in stone surgery. By utilizing the body's natural cavities or making only a small incision on the skin, minimally invasive lithotripters can greatly reduce surgical trauma and postoperative recovery time. At the same time, equipped with advanced technical equipment such as endoscopes and laser lithotripters, minimally invasive lithotripters have the advantages of good visibility, simultaneous stone crushing and stone removal, wide range of indications, and easy operation. With the continuous development of minimally invasive technology, minimally invasive lithotripters will play an increasingly important role in stone surgery.

[0035] An implementable method that has been discovered in the art - a gallbladder stone remover (CN208769909U), the edges of the retractable structure are fixed on the traction member to form a pocket structure, the pocket structure is used to hold stones; the traction member extends along the inside of the stone remover body, and the two ends of the traction member are fixed to the top of the stone remover body to facilitate tightening or loosening the retractable structure. The retractable structure can be a net or gauze structure.

[0036] The traction piece is a traction line. The retractable structure is a net, the traction piece is a traction line, both ends of the traction line are fixed to the top of the lithotripter body or the handle, when the traction line is released, the retractable structure is lowered, and the stone is loaded into the net like scooping water by changing the body position, and the traction line is tightened to collect the stone into the lithotripter body and then taken out of the body.

[0037] In order to more conveniently control the traction line, a handle is also provided on the top of the stone extractor body, and the traction piece is connected to the handle, and the handle is used to control the retraction or release of the traction piece.

[0038] It also includes: a fistula tube, a lithotripter is located inside the fistula tube, and the bottom end of the lithotripter body and the retractable structure can extend from the tail of the fistula tube. The lithotripter is delivered into the body by using the fistula tube. The tail of the fistula tube is set as a pigtail structure, which is bent in a natural state and can be straightened under the action of external force. After the lithotripter is placed, the lithotripter can straighten the pigtail structure and extend from the pigtail structure.

[0039] The steps for gallbladder stone removal are:

[0040] After successful gallbladder puncture, a fistula tube was inserted;

[0041] After decompression and drainage and inflammation subsides, a lithotomy device is placed through the ostomy tube;

[0042] Move the fistula tube to place the lithotripter at the site of the stone;

[0043] Change the position of the lithotripter to place the stones into the net, tighten the traction line and bring the stones out of the body in batches along the fistula tube.

[0044] Conventional high-risk cholecystitis patients must first undergo cholecystostomy and drainage before they can undergo stone removal surgery to reduce the occurrence of complications. Ultrasound-guided gallbladder puncture and drainage is a relatively mature minimally invasive treatment method. This method mainly drains bile from the gallbladder and quickly reduces the pressure inside the gallbladder to relieve inflammation. Combined with the above surgical methods, after the inflammation of the gallbladder is eliminated, the stone remover is sent into the gallbladder through the fistula tube to remove the stones. If the stones are large, they can be crushed under pressure before being removed, which can enable some patients to achieve minimally invasive treatment of gallbladder-preserving gallstones.

[0045] 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.

[0046] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0047] Reference Figure 1-Figure 6 As shown, the present embodiment provides a minimally invasive lithotripter for stone surgery, comprising a main body 1, a groove 2 being provided on the side wall of the main body 1, a stone removal tube 3 being fixedly installed in the groove 2, a stone removal tube 3 being provided at the bottom of the stone removal tube 3 with a stone removal 4, a sliding assembly being installed in the stone removal tube 3, the sliding assembly being transmission-connected with the stone removal 4, a water spray pipe 6 and a water return pipe 5 being respectively provided at the bottom of the main body 1, the water spray pipe 6 and the water return pipe 5 both facing the stone removal 4, the water spray pipe 6 being connected to a first mounting head 13, the water return pipe 5 being connected to a second mounting head 14, the first mounting head 13 and the second mounting head 14 being respectively detachably connected to the outer wall of the main body 1, the first mounting head 13 being used for connecting to an external water supply system, and the second mounting head 14 being used for connecting to an external water return system.

[0048] When in use, the main body 1 is inserted into the stone position, and the opening and closing of the stone extractor 4 is controlled by the sliding assembly, so that the stone can be clamped quickly and accurately; the surrounding tissue can be flushed through the water spray pipe 6 to make the field of vision clearer, and the return pipe 5 absorbs the flushed water to prevent accumulation in the body. The present invention adopts a slender tubular main body 1 structure and a specially designed stone extractor 4, which can enter the body through a tiny surgical channel, greatly reducing surgical trauma and postoperative recovery time; the stone extractor 4 adopts a special design, which can firmly clamp stones of various sizes and shapes, and improves the efficiency of stone extraction.

[0049] Further optimizing the scheme, the sliding assembly includes a motor 24 fixed to the inner wall of the stone taking tube 3, the output shaft of the motor 24 is fixed to a gear 23, the gear 23 is meshed with a rack 22, the rack 22 is slidably connected to the inner wall of the stone taking tube 3, the bottom of the rack 22 is fixed to a movable block 25, and the movable block 25 is transmission-connected to the stone taking tube 4. The motor 24 drives the gear 23 to rotate, the gear 23 drives the rack 22 to move up and down, the rack 22 drives the movable block 25 to move, and the up and down movement of the movable block 25 drives the stone taking tube 4 to open or close, so as to facilitate the grabbing of stones.

[0050] Further optimization scheme, the inner wall of the stone taking tube 3 is fixedly connected with an upper stroke plate 19, a lower stroke plate 20 is arranged below the upper stroke plate 19, the top of the rack 22 passes through the lower stroke plate 20 and is fixedly connected with a limit plate 21, and the limit plate 21 contacts the upper stroke plate 19. The setting of the upper stroke plate 19 and the lower stroke plate 20 limits the rack 22 to prevent slipping.

[0051] Further optimized solution, the stone taking 4 includes a plurality of clamps 27 rotatably connected to the bottom of the stone taking tube 3, a torsion spring is provided at the rotation connection between the clamps 27 and the stone taking tube 3, a friction strip 28 is fixedly connected to the side wall of the clamps 27 near the bottom, a connecting rod 26 is fixedly connected to the side wall of the clamps 27, and the top of the connecting rod 26 contacts the movable block 25. When the movable block 25 moves downward, it squeezes the connecting rod 26, and the connecting rod 26 drives the clamps 27 to rotate, thereby opening the clamps 27, and after the movable block 25 moves upward, the clamps 27 react and rotate under the action of the torsion spring, thereby clamping the stone.

[0052] Further optimizing the scheme, the bottom surface of the main body 1 is respectively provided with a lighting lamp 30 and a camera 29. The arrangement of the lighting lamp 30 and the camera 29 facilitates observation of the internal situation and clamps the stone more accurately.

[0053] Further optimization scheme, the main body 1 is provided with a first connecting pipe 11 and a second connecting pipe 12, the bottom of the first connecting pipe 11 is connected to the water spray pipe 6, the top of the first connecting pipe 11 is connected to the first mounting head 13, the bottom of the second connecting pipe 12 is connected to the return pipe 5, the top of the second connecting pipe 12 is connected to a filter box 16, the filter box 16 is connected to the second mounting head 14, and a placement groove 15 is provided on the main body 1, and the filter box 16 is located in the placement groove 15 and is detachably connected to the placement groove 15. The water and residue absorbed by the return pipe 5 are filtered by the filter box 16 and then recycled to the external return water system, which is convenient for water reuse; the filter box 16 can be disassembled for easy cleaning and replacement.

[0054] Further optimizing the scheme, a filter screen 17 is fixedly connected in the filter box 16, and a filter cotton 18 is arranged below the filter screen 17. Both the filter screen 17 and the filter cotton 18 play a good filtering role.

[0055] In a further optimized solution, the top of the main body 1 is electrically connected to an operation panel 9 through a wire 7, and a plurality of buttons 10 are provided on the operation panel 9. The operator holds the main body 1 in one hand and the operation panel 9 in the other hand, and controls the structural parts on the main body 1 through the buttons 10 on the operation panel 9.

[0056] In a further optimized solution, a connector 8 is provided on the top of the main body 1, and the connector 8 is electrically connected to the camera 29, and the connector 8 is used to connect to an external imaging device. When in use, the connector 8 is connected to the external imaging device, and the image captured by the camera 29 can be transmitted to the imaging system, which is convenient for real-time observation of the internal situation.

[0057] A method for using a minimally invasive lithotripter for stone surgery comprises the following steps:

[0058] Preoperative preparation: According to the location and size of the patient's stones, select the appropriate minimally invasive lithotripsy model and perform necessary disinfection. At the same time, prepare other instruments and consumables required for the operation;

[0059] Establish surgical access: Establish a minimally invasive access to the stone site through percutaneous puncture or laparoscopic surgery to ensure that the access is unobstructed;

[0060] Positioning the stone: using the lighting 30 and the camera 29 on the main body 1, accurately identifying the position and shape of the stone, adjusting the position and angle of the main body 1, and ensuring that the stone remover 4 can accurately clamp the stone;

[0061] Grasping the stone: Control the opening and closing of the stone grabber 4 through the operating panel 9, bring the clamping plate 27 close to the stone, and then quickly close the clamping plate 27 to firmly clamp the stone;

[0062] Removing the stone: While keeping the stone removal device 4 holding the stone stably, slowly pull the stone out of the body through the surgical channel. During the stone removal process, the area around the stone can be flushed with the water spray pipe 6 at any time to keep the surgical field of view clear;

[0063] Inspection and suturing: After removing the stones, the imaging system is used to check whether there are any stones remaining in the surgical area or whether the surrounding tissues are damaged. After confirmation, the surgical channel is closed and necessary suturing and bandaging are performed.

[0064] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0065] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A minimally invasive stone removal device for stone surgery, characterized in that: The utility model comprises a main body (1), wherein a groove (2) is provided on the side wall of the main body (1), a stone taking tube (3) is fixedly installed in the groove (2), a stone taking tube (4) is provided at the bottom of the stone taking tube (3), a sliding component is installed in the stone taking tube (3), and the sliding component is connected to the stone taking tube (4) in a transmission manner, and a water spray pipe (6) and a water return pipe (5) are respectively provided at the bottom of the main body (1), the water spray pipe (6) and the water return pipe (5) are both directed toward the stone taking tube (4), the water spray pipe (6) is connected to a first mounting head (13), and the water return pipe (5) is connected to a second mounting head (14), the first mounting head (13) and the second mounting head (14) are respectively detachably connected to the outer wall of the main body (1), the first mounting head (13) is used to be connected to an external water supply system, and the second mounting head (14) is used to be connected to an external water return system.

2. The minimally invasive stone removal device for stone surgery according to claim 1, characterized in that: The sliding assembly comprises a motor (24) fixedly connected to the inner wall of the stone removing tube (3); the output shaft of the motor (24) is fixedly connected to a gear (23); the gear (23) is meshed with a rack (22); the rack (22) is slidably connected to the inner wall of the stone removing tube (3); a movable block (25) is fixedly connected to the bottom of the rack (22); and the movable block (25) is transmission-connected to the stone removing tube (4).

3. The minimally invasive stone removal device for stone surgery according to claim 2, characterized in that: An upper stroke plate (19) is fixedly connected to the inner wall of the stone removing cylinder (3), a lower stroke plate (20) is arranged below the upper stroke plate (19), the top of the rack (22) passes through the lower stroke plate (20) and is fixedly connected to a limit plate (21), and the limit plate (21) is in contact with the upper stroke plate (19).

4. The minimally invasive stone removal device for stone surgery according to claim 2, characterized in that: The stone removing device (4) comprises a plurality of splints (27) rotatably connected to the bottom of the stone removing tube (3), a torsion spring is provided at the rotatably connected position between the splints (27) and the stone removing tube (3), a friction strip (28) is fixedly connected to the side wall of the splint (27) close to the bottom, a connecting rod (26) is fixedly connected to the side wall of the splint (27), and the top of the connecting rod (26) is in contact with the movable block (25).

5. The minimally invasive stone removal device for stone surgery according to claim 1, characterized in that: The bottom surface of the main body (1) is respectively provided with an illumination lamp (30) and a camera (29).

6. The minimally invasive stone removal device for stone surgery according to claim 1, characterized in that: The main body (1) is provided with a first connecting pipe (11) and a second connecting pipe (12), the bottom of the first connecting pipe (11) is connected to the water spray pipe (6), the top of the first connecting pipe (11) is connected to the first mounting head (13), the bottom of the second connecting pipe (12) is connected to the return pipe (5), the top of the second connecting pipe (12) is connected to a filter box (16), the filter box (16) is connected to the second mounting head (14), and a placement groove (15) is provided on the main body (1), the filter box (16) is located in the placement groove (15) and is detachably connected to the placement groove (15).

7. The minimally invasive stone removal device for stone surgery according to claim 6, characterized in that: A filter screen (17) is fixedly connected inside the filter box (16), and filter cotton (18) is arranged below the filter screen (17).

8. The minimally invasive stone removal device for stone surgery according to claim 1, characterized in that: The top of the main body (1) is electrically connected to an operating panel (9) via a wire (7), and a plurality of buttons (10) are provided on the operating panel (9).

9. The minimally invasive stone removal device for stone surgery according to claim 5, characterized in that: A connector (8) is provided on the top of the main body (1), the connector (8) is electrically connected to the camera (29), and the connector (8) is used to communicate with an external imaging device.

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