Hepatolithiasis negative pressure suction and laser lithotripsy integrated device

Abstract

The invention belongs to the technical field of hepatobiliary calculus treatment, and discloses a hepatobiliary calculus negative pressure suction and laser lithotripsy integrated device which comprises a wrapping mechanism, and the wrapping mechanism comprises an abutting plate, a buffer pad, a connecting ring, a shell, a first cavity, a first vent groove, an air conveying pipe and a wrapping air bag; through cooperation of the wrapping air bag, the protective air bags and other structures, the calculus can be conveniently wrapped, the calculus is wrapped through the multiple protective air bags, an isolation layer is formed, the calculus is isolated from surrounding important tissues such as bile duct walls and blood vessels, and the calculus is prevented from being damaged. In the lithotripsy process, both energy generated by laser and splashing of stone fragments are limited in the protective air bag, damage to surrounding tissue is effectively prevented, meanwhile, the stone fragments can be prevented from being diffused to the surrounding tissue in the lithotripsy process, and complications such as bile duct blockage and inflammation are avoided. And subsequent negative-pressure suction operation is facilitated to thoroughly remove the dust.

Description

Technical Field

[0001] The invention belongs to the technical field of hepatobiliary stone treatment, and specifically is an integrated device for hepatobiliary stone negative pressure suction and laser lithotripsy. Background Art

[0002] In the field of hepatobiliary surgery, hepatobiliary stones are a common and complex disease. Currently, there are generally two ways to solve hepatobiliary stones clinically: one is percutaneous transhepatic intrahepatic bile duct lithotripsy, and the other is laparoscopic electrohydraulic / holmium laser lithotripsy from the common bile duct using a choledochoscope. In terms of stone treatment, for larger stones, simple drug treatment cannot effectively remove them, and surgical intervention is often required. Previous surgical methods include open abdominal lithotripsy. Although this method can directly remove stones, the surgical trauma is extremely great, the patient's recovery is slow after surgery, and it will leave a large surgical scar on the abdomen, causing patients both physical and psychological pain. With the development of medical technology, minimally invasive technology has gradually been applied to the treatment of hepatobiliary stones. For example, laparoscopic surgery has reduced surgical trauma to a certain extent, but it still faces challenges in treating stones.

[0003] Most of the existing integrated devices for negative pressure aspiration and laser lithotripsy for hepatobiliary stones do not have the function of fixing and limiting the stones during laser lithotripsy, making it easy for the stones to move due to factors such as patient breathing, organ peristalsis, and contact with operating instruments, resulting in poor lithotripsy effects. At the same time, most of them are unable to isolate the stones from surrounding tissues. During the lithotripsy process, stone fragments are easily diffused to the surrounding tissues, thereby causing complications such as bile duct obstruction and inflammation. Therefore, an integrated device for negative pressure aspiration and laser lithotripsy for hepatobiliary stones is proposed. Summary of the invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides an integrated device for negative pressure suction and laser lithotripsy of hepatobiliary stones.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a device for integrating negative pressure suction and laser lithotripsy for hepatobiliary stones, comprising a lithotripsy mechanism, and further comprising:

[0006] A wrapping mechanism, wherein the wrapping mechanism is located inside the stone crushing mechanism;

[0007] The wrapping mechanism includes a contact plate, a buffer pad, a connecting ring, an outer shell, a first cavity, a first ventilation groove, an air pipe and a wrapping airbag, the contact plate is fixedly connected with a buffer pad for buffering, the contact plate is fixedly connected with a connecting ring on a side away from the buffer pad through a plurality of connecting rods, the connecting ring is fixedly connected with a plurality of first springs for supporting the connecting ring on a side away from the contact plate, a first cavity for air storage is provided inside the outer shell, a plurality of first ventilation grooves are evenly provided on the side of the first cavity, a plurality of air pipes are fixedly connected with a side of the outer shell close to the contact plate, and a wrapping airbag for wrapping stones is fixedly connected to the end of the air pipe away from the outer shell.

[0008] Preferably, the connecting ring is slidingly connected to the first cavity, and the side of the connecting ring away from the contact plate is elastically connected to the inner wall of the first cavity through a first spring. The contact plate has a circular ring shape, and the outer shell has a cylindrical shape. The contact plate is located between several air pipes, and the wrapped airbag is located on the side of the contact plate away from the outer shell, and the interior of the first cavity is connected to the interior of the wrapped airbag through the first ventilation groove and the air pipe.

[0009] Preferably, the stone crushing mechanism comprises an elastic head, the inner wall of the elastic head is fixedly connected to a laser emitting head via a bracket, a second cavity is provided inside the elastic head, and a plurality of second ventilation grooves are evenly provided on the side of the second cavity.

[0010] Preferably, the second ventilation groove is located on a side of the second cavity away from the laser emitting head, the inner wall of the elastic head is fixedly connected to the outer shell, the laser emitting head is located inside the abutment plate, and the abutment plate is slidably connected to the inner wall of the elastic head.

[0011] Preferably, an expansion mechanism is provided inside the wrapping mechanism, and the wrapping mechanism is located inside the expansion mechanism. The expansion mechanism includes a driving ring, and a plurality of second springs are fixedly connected to the driving ring, and a plurality of racks are fixedly connected to the side of the driving ring away from the second springs, and half gears are meshed on the sides of the plurality of racks close to each other, and a rotating plate is fixedly connected to the half gears, and protective airbags are provided between the plurality of rotating plates, and a driving line is provided on the side of the driving ring away from the racks.

[0012] Preferably, a plurality of the racks are evenly distributed on the drive ring, the rotating plate is located on a side of the half gear away from the drive ring, and the number of the protective airbags is several.

[0013] Preferably, the driving ring is slidably connected to the second cavity, the driving ring is elastically connected to the inner wall of the second cavity through a second spring, the rack is slidably connected to the inner wall of the elastic head, the half gear is rotatably connected to the inner wall of the elastic head, the side of the rotating plate close to the rack is fixedly connected to the inner wall of the elastic head, the protective airbag is fixedly connected to the inner wall of the elastic head, and the inside of the second cavity communicates with the inside of the protective airbag through a second ventilation groove.

[0014] Preferably, the number of the protective airbags is the same as that of the air delivery pipes. The air delivery pipes penetrate through the surface of the protective airbag and extend into the inside of the protective airbag. The wrapping airbag is located on the side of the protective airbag away from the driving ring. The rotating plate is located between the abutting plate and the elastic head. The size of the connecting ring is smaller than that of the driving ring.

[0015] Preferably, a main body mechanism is arranged on the side of the wrapping mechanism. The main body mechanism includes a suction pipe. A negative pressure pipe is fixedly connected to the side of the suction pipe. One end of the suction pipe is fixedly connected to a driver. The driver is respectively provided with an expansion button, a lithotripsy button and a negative pressure button.

[0016] Preferably, one end of the suction pipe away from the driver is fixedly connected to one end of the elastic head close to the laser emitter. Both the driving wire and the end of the laser emitter away from the buffer pad are connected to the driver.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] By arranging the cooperation of structures such as the wrapping airbag and the protective airbag, the present invention facilitates the wrapping of stones. Wrapping the stones with several protective airbags helps to accurately determine the position of the stones. At the same time, wrapping the stones can keep the stones in a stable position, which helps to improve the efficiency and accuracy of laser lithotripsy. The buffer pad on the abutting plate can play a buffering role when the stones are squeezed, avoiding the indirect damage to the surrounding tissues caused by the impact force that may be caused by the hard contact between the stones and the device. Moreover, the wrapping of the stones by the protective airbag forms an isolation layer, separating the stones from important tissues such as the surrounding bile duct wall and blood vessels. During the lithotripsy process, both the energy generated by the laser and the splashing of stone fragments are limited within the protective airbag, effectively preventing damage to the surrounding tissues. At the same time, it can also prevent the diffusion of stone fragments to the surrounding tissues during the lithotripsy process, avoiding the occurrence of complications such as bile duct blockage and inflammation, and facilitating the subsequent negative pressure suction operation to completely remove them;

[0019] Through the cooperation of structures such as a driving ring and a rotating plate, the present invention facilitates the adaptation to stones of different specifications. If the stone is relatively large in volume, through transmission, several rotating plates rotate in a direction away from each other, squeezing the inner wall of the elastic head to expand it, and enlarging the diameter of the end of the elastic head far from the suction pipe, so as to provide sufficient accommodation space for the relatively large stone, ensuring that the stone is always within the effective operation range of the device during the lithotripsy and suction processes, avoiding the situation that it is blocked at the entrance and hindering subsequent operations, and greatly enhancing the versatility of the device, reducing the situation of needing to replace different devices due to different stone sizes.

[0020] Through the cooperation of structures such as a second ventilation groove and a protective airbag, the present invention facilitates the protection of the inner wall of the device. The gas in the second cavity is squeezed and enters the protective airbag through the second ventilation groove, causing the protective airbag to slightly expand and abut against the surface of the rotating plate, protecting several rotating plates distributed in a staggered manner therewith, and being able to form a buffer layer between the rotating plate and other structures and the stone, avoiding the situation that the rotating plate directly makes hard contact with the inner wall of the device or the stone to cause wear and generate vibration to affect the position of the stone and the surrounding tissues, improving the stability during the use of the device, reducing the maintenance cost, and increasing the service life of the device. Brief Description of the Drawings

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

[0022] Figure 2 is a schematic cross-sectional structural diagram of the main body mechanism of the present invention;

[0023] Figure 3 is a schematic three-dimensional structural diagram of the lithotripsy mechanism of the present invention;

[0024] Figure 4 is a schematic cross-sectional structural diagram of the lithotripsy mechanism of the present invention;

[0025] Figure 5 is the present invention Figure 4 magnified schematic structural diagram of part A in;

[0026] Figure 6 is a schematic cross-sectional structural diagram of the wrapping mechanism of the present invention;

[0027] Figure 7 is a schematic three-dimensional structural diagram of the expansion mechanism of the present invention;

[0028] Figure 8 is a schematic diagram of the structural relationship and cooperation between the connecting ring and the driving ring of the present invention.

[0029] In the figure: 1. wrapping mechanism; 101. resistance plate; 102. buffer pad; 103. connecting ring; 104. first spring; 105. shell; 106. first cavity; 107. first ventilation groove; 108. air pipe; 109. wrapping airbag; 2. stone crushing mechanism; 201. elastic head; 202. laser emission head; 203. second ventilation groove; 204. second cavity; 3. expansion mechanism; 301. drive ring; 302. second spring; 303. rack; 304. half gear; 305. rotating plate; 306. protective airbag; 307. drive line; 4. main body mechanism; 401. suction tube; 402. negative pressure tube; 403. driver; 404. expansion button; 405. stone crushing button; 406. negative pressure button. DETAILED DESCRIPTION

[0030] 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.

[0031] like Figures 1 to 8 As shown, the present invention provides an integrated device for negative pressure suction and laser lithotripsy of hepatobiliary stones, comprising a lithotripsy mechanism 2, and further comprising:

[0032] The wrapping mechanism 1 is located inside the stone crushing mechanism 2;

[0033] Among them, the wrapping mechanism 1 includes a contact plate 101, a buffer pad 102, a connecting ring 103, a shell 105, a first cavity 106, a first ventilation groove 107, an air pipe 108 and a wrapping airbag 109. The contact plate 101 is fixedly connected with a buffer pad 102 for buffering. The side of the contact plate 101 away from the buffer pad 102 is fixedly connected with a connecting ring 103 through a plurality of connecting rods. The side of the connecting ring 103 away from the contact plate 101 is fixedly connected with a plurality of first springs 104 for supporting the connecting ring 103. The inside of the shell 105 is provided with a first cavity 106 for storing air. The side of the first cavity 106 is evenly provided with a plurality of first ventilation grooves 107. The side of the shell 105 close to the contact plate 101 is fixedly connected with a plurality of air pipes 108. The end of the air pipe 108 away from the shell 105 is fixedly connected with a wrapping airbag 109 for wrapping stones.

[0034] The connecting ring 103 is slidably connected to the first cavity 106. The side of the connecting ring 103 away from the abutting plate 101 is elastically connected to the inner wall of the first cavity 106 through the first spring 104. The outer shape of the abutting plate 101 is circular, and the outer shape of the outer shell 105 is cylindrical. The abutting plate 101 is located between a plurality of air delivery pipes 108. The wrapping airbag 109 is located on the side of the abutting plate 101 away from the outer shell 105. The inside of the first cavity 106 is communicated with the inside of the wrapping airbag 109 through the first ventilation groove 107 and the air delivery pipes 108.

[0035] The gravel crushing mechanism 2 includes an elastic head 201. The inner wall of the elastic head 201 is fixedly connected with a laser emitting head 202 through a bracket. A second cavity 204 is formed inside the elastic head 201. A plurality of second ventilation grooves 203 are evenly formed on the side surface of the second cavity 204. The second ventilation grooves 203 are located on the side of the second cavity 204 away from the laser emitting head 202. The inner wall of the elastic head 201 is fixedly connected to the outer shell 105. The laser emitting head 202 is located inside the abutting plate 101. The abutting plate 101 is slidably connected to the inner wall of the elastic head 201.

[0036] An expansion mechanism 3 is arranged inside the wrapping mechanism 1. The wrapping mechanism 1 is located inside the expansion mechanism 3. The expansion mechanism 3 includes a driving ring 301. A plurality of second springs 302 are fixedly connected to the driving ring 301. A plurality of racks 303 are fixedly connected to the side of the driving ring 301 away from the second springs 302. A semi-gear 304 is meshed with each other on the side of the plurality of racks 303 close to each other. A rotating plate 305 is fixedly connected to the semi-gear 304. A protective airbag 306 is arranged between a plurality of rotating plates 305. A driving wire 307 is arranged on the side of the driving ring 301 away from the racks 303.

[0037] Adopting the above solution: By setting the cooperation of structures such as the wrapping airbag 109 and the protection airbag 306, it is convenient to wrap the stone. As the suction pipe 401 moves, the expanded end of the elastic head 201 will move to the outside of the stone, and the stone will squeeze the buffer pad 102 on the contact plate 101. By extrusion, the contact plate 101 will move towards the housing 105, causing the connecting ring 103 to squeeze the gas in the first spring 104 and the first cavity 106. The gas will enter the interior of the wrapping airbag 109 through the first ventilation groove 107 and the air delivery pipe 108 by extrusion, causing the wrapping airbag 109 to expand, thereby squeezing the protection airbag 306 to make the end of the protection airbag 306 away from the housing 105 expand, and wrapping the stone through a number of protection airbags 306, which helps to accurately determine the position of the stone. At the same time, wrapping the stone can keep the stone in a stable position, which helps to improve the efficiency and accuracy of laser lithotripsy. The buffer pad 102 on the contact plate 101 can play a buffering role when the stone is squeezed, avoiding the indirect damage to the surrounding tissues caused by the impact force that may be caused by the hard contact between the stone and the device. And the wrapping of the protection airbag 306 on the stone forms an isolation layer, separating the stone from important tissues such as the surrounding bile duct wall and blood vessels. During the lithotripsy process, both the energy generated by the laser and the splashing of stone fragments are limited within the protection airbag 306, effectively preventing damage to the surrounding tissues. At the same time, it can also prevent the spread of stone fragments to the surrounding tissues during the lithotripsy process, avoiding the occurrence of complications such as bile duct blockage and inflammation, and facilitating the subsequent negative pressure aspiration operation to completely remove it.

[0038] As Figures 2 to 7 shown, a number of racks 303 are evenly distributed on the driving ring 301. The rotating plate 305 is located on the side of the semi-gear 304 away from the driving ring 301. The number of protection airbags 306 is several. The driving ring 301 is slidably connected to the second cavity 204. The driving ring 301 is elastically connected to the inner wall of the second cavity 204 through the second spring 302. The rack 303 is slidably connected to the inner wall of the elastic head 201. The semi-gear 304 is rotatably connected to the inner wall of the elastic head 201. The side of the rotating plate 305 close to the rack 303 is fixedly connected to the inner wall of the elastic head 201. The protection airbag 306 is fixedly connected to the inner wall of the elastic head 201. The interior of the second cavity 204 communicates with the interior of the protection airbag 306 through the second ventilation groove 203.

[0039] The number of protection airbags 306 is the same as the number of air delivery pipes 108. The air delivery pipe 108 penetrates the surface of the protection airbag 306 and extends into the interior of the protection airbag 306. The wrapping airbag 109 is located on the side of the protection airbag 306 away from the driving ring 301. The rotating plate 305 is located between the contact plate 101 and the elastic head 201. The size of the connecting ring 103 is smaller than the size of the driving ring 301.

[0040] On the side of the wrapping mechanism 1, there is a main body mechanism 4. The main body mechanism 4 includes a suction pipe 401. A negative pressure pipe 402 is fixedly connected to the side of the suction pipe 401. One end of the suction pipe 401 is fixedly connected to a driver 403. The driver 403 is respectively provided with an expansion button 404, a lithotripsy button 405, and a negative pressure button 406. A fixed connection is made between the end of the suction pipe 401 far from the driver 403 and the end of the elastic head 201 close to the laser emitting head 202. Both the driving wire 307 and the end of the laser emitting head 202 far from the buffer pad 102 are connected to the driver 403.

[0041] Adopting the above solution: Through the cooperation of structures such as the driving ring 301 and the rotating plate 305, it is convenient to adapt to stones of different specifications. If the volume of the stone is large, the driving wire 307 is moved in the direction close to the driver 403, driving the driving ring 301 to move in the second cavity 204 in the direction close to the second spring 302, squeezing the second spring 302 and the gas in the second cavity 204, and driving the rack 303 to move in the direction close to the second spring 302, causing the meshing semi-gear 304 to rotate, driving several rotating plates 305 to rotate away from each other, squeezing the inner wall of the elastic head 201 to expand it, and expanding the diameter of the end of the elastic head 201 far from the suction pipe 401, which can provide sufficient accommodation space for larger stones, ensuring that the stone is always within the effective operation range of the device during lithotripsy and suction, avoiding the situation that it is blocked at the entrance and hindering subsequent operations, and greatly enhancing the versatility of the device, reducing the situation of needing to replace different equipment due to different stone sizes;

[0042] Through the cooperation of structures such as the second ventilation groove 203 and the protective airbag 306, it is convenient to protect the inner wall of the device. The gas in the second cavity 204 is squeezed and enters the protective airbag 306 through the second ventilation groove 203, causing the protective airbag 306 to slightly expand and abut against the surface of the rotating plate 305, protecting several rotating plates 305 distributed in a staggered manner therewith, being able to form a buffer layer between the rotating plate 305 and other structures and the stone, avoiding the situation that the rotating plate 305 directly makes hard contact with the inner wall of the device or the stone and causes wear, and generating vibrations that affect the position of the stone and the surrounding tissues, improving the stability of the device during use, reducing the maintenance cost, and increasing the service life of the device.

[0043] Working principle and usage process of the present invention: First, necessary preoperative examinations are performed on the patient, such as determining information such as the location, size, and quantity of hepatobiliary stones through imaging means such as ultrasound and CT, and marking the specific location of the stones. Subsequently, the patient is anesthetized, and the appropriate position on the patient's abdomen is disinfected and draped to establish a channel into the hepatobiliary system. Then, an ultrasonic imaging device is used to determine the location of the stones in the hepatobiliary system, and the patient's position is adjusted or the guiding device of the device is operated, and in cooperation with the choledochoscope, the suction pipe 401 can accurately point to the location where the stones are located. Subsequently, the suction pipe 401 is slowly inserted along the pre-established channel until the elastic head 201 on the suction pipe 401 approaches the stones;

[0044] After the elastic head 201 approaches the stones, if the volume of the stones is relatively large, the expansion button 404 can be pressed to control the driving wire 307 to move towards the direction close to the driver 403 through the driver 403, so that the driving ring 301 moves towards the direction close to the second spring 302 inside the second cavity 204, squeezing the second spring 302 and the gas in the second cavity 204, and driving the rack 303 to move towards the direction close to the second spring 302, causing the meshing half gear 304 to rotate, driving several rotating plates 305 to rotate away from each other, squeezing the inner wall of the elastic head 201 to expand it, and expanding the diameter of the end of the elastic head 201 away from the suction pipe 401. The gas squeezed in the second cavity 204 will enter the protective airbag 306 through the second ventilation groove 203, causing the protective airbag 306 to slightly expand and abut against the surface of the rotating plate 305 to protect several rotating plates 305 distributed in a staggered manner with it;

[0045] Then, as the suction pipe 401 moves, the expanded end of the elastic head 201 will move to the outside of the stones, and the stones will squeeze the buffer pad 102 on the contact plate 101. Through the squeezing, the contact plate 101 will move towards the direction close to the outer shell 105, causing the connecting ring 103 to squeeze the first spring 104 and the gas in the first cavity 106. The squeezed gas will enter the wrapping airbag 109 through the first ventilation groove 107 and the air pipe 108, causing the wrapping airbag 109 to expand, thereby squeezing the protective airbag 306 to cause the end of the protective airbag 306 away from the outer shell 105 to expand, and wrapping the stones through several protective airbags 306;

[0046] Subsequently, press the lithotripsy button 405 to activate the laser emitting head 202 through the driver 403, so that the laser beam is focused on the surface of the stone. After the energy of the laser is absorbed by the stone, high temperature, high pressure and stress changes will be generated inside the stone, resulting in the fragmentation of the stone. After the stone is broken, it will no longer exert pressure on the contact plate 101. Therefore, the connecting ring 103 will reset under the action of the elastic force of the first spring 104 and the air pressure, so that the wrapped airbag 109 is released from the inflated state. At the same time, press the negative pressure button 406 to generate negative pressure inside the negative pressure tube 402 through an external blower, so as to evacuate the air in the suction tube 401 towards the negative pressure tube 402, generate negative pressure in the suction tube 401, and suck out the broken stone from the body through negative pressure.

[0047] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0048] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An integrated device for negative pressure aspiration and laser lithotripsy of hepatobiliary stones, comprising a lithotripsy mechanism (2), characterized in that: Further included are: a wrapping mechanism (1) which is located inside the gravel crushing mechanism (2); wherein, the wrapping mechanism (1) includes a contact plate (101), a buffer pad (102), a connecting ring (103), a housing (105), a first cavity (106), a first ventilation groove (107), an air delivery pipe (108), and a wrapping airbag (109). A buffer pad (102) for buffering is fixedly connected to the contact plate (101). A connecting ring (103) is fixedly connected to the side of the contact plate (101) away from the buffer pad (102) through a plurality of connecting rods. A plurality of first springs (104) for supporting the connecting ring (103) are fixedly connected to the side of the connecting ring (103) away from the contact plate (101). A first cavity (106) for storing gas is formed inside the housing (105). A plurality of first ventilation grooves (107) are evenly formed on the side surface of the first cavity (106). A plurality of air delivery pipes (108) are fixedly connected to the side of the housing (105) close to the contact plate (101). An air delivery pipe (108) is fixedly connected to the end of the air delivery pipe (108) away from the housing (105) with a wrapping airbag (109) for wrapping the calculus.

2. The integrated device for negative pressure aspiration and laser lithotripsy of hepatobiliary calculi according to claim 1, wherein: The connecting ring (103) is slidably connected to the first cavity (106). The side of the connecting ring (103) away from the contact plate (101) is elastically connected to the inner wall of the first cavity (106) through a first spring (104). The outer shape of the contact plate (101) is circular. The outer shape of the housing (105) is cylindrical. The contact plate (101) is located between a plurality of air delivery pipes (108). The wrapping airbag (109) is located on the side of the contact plate (101) away from the housing (105). The inside of the first cavity (106) is communicated with the inside of the wrapping airbag (109) through the first ventilation groove (107) and the air delivery pipe (108).

3. The integrated device for negative pressure aspiration and laser lithotripsy of hepatobiliary calculi according to claim 1, wherein: The gravel crushing mechanism (2) includes an elastic head (201). A laser emitting head (202) is fixedly connected to the inner wall of the elastic head (201) through a bracket. A second cavity (204) is formed inside the elastic head (201). A plurality of second ventilation grooves (203) are evenly formed on the side surface of the second cavity (204).

4. The integrated device for negative pressure aspiration and laser lithotripsy of hepatobiliary stones according to claim 3, characterized in that: The second ventilation groove (203) is located on the side of the second cavity (204) away from the laser emitting head (202). The inner wall of the elastic head (201) is fixedly connected to the housing (105). The laser emitting head (202) is located inside the contact plate (101). The contact plate (101) is slidably connected to the inner wall of the elastic head (201).

5. The integrated device for negative pressure aspiration and laser lithotripsy of hepatobiliary stones according to claim 3, wherein: An expansion mechanism (3) is arranged inside the wrapping mechanism (1), the wrapping mechanism (1) is located inside the expansion mechanism (3), the expansion mechanism (3) includes a driving ring (301), a number of second springs (302) are fixedly connected to the driving ring (301), a number of racks (303) are fixedly connected to the side of the driving ring (301) away from the second springs (302), a semi-gear (304) is meshed with the side of each of the number of racks (303) close to each other, a rotating plate (305) is fixedly connected to the semi-gear (304), a protective airbag (306) is arranged between each of the number of rotating plates (305), and a driving wire (307) is arranged on the side of the driving ring (301) away from the racks (303).

6. The integrated device for negative pressure aspiration and laser lithotripsy of hepatobiliary stones according to claim 5, characterized in that: The number of the racks (303) are evenly distributed on the driving ring (301), the rotating plate (305) is located on the side of the semi-gear (304) away from the driving ring (301), and the number of the protective airbags (306) is several.

7. The integrated device for negative pressure aspiration and laser lithotripsy of hepatobiliary stones according to claim 5, characterized in that: The driving ring (301) is slidably connected with the second cavity (204), the driving ring (301) is elastically connected with the inner wall of the second cavity (204) through the second spring (302), the rack (303) is slidably connected with the inner wall of the elastic head (201), the semi-gear (304) is rotatably connected with the inner wall of the elastic head (201), the side of the rotating plate (305) close to the rack (303) is fixedly connected with the inner wall of the elastic head (201), the protective airbag (306) is fixedly connected with the inner wall of the elastic head (201), and the inside of the second cavity (204) is communicated with the inside of the protective airbag (306) through the second ventilation groove (203).

8. The integrated device for negative pressure aspiration and laser lithotripsy of hepatobiliary stones according to claim 5, characterized in that: The number of the protective airbags (306) is the same as the number of the air delivery pipes (108), the air delivery pipes (108) penetrate through the surface of the protective airbags (306) and extend into the inside of the protective airbags (306), the wrapping airbag (109) is located on the side of the protective airbag (306) away from the driving ring (301), the rotating plate (305) is located between the abutting plate (101) and the elastic head (201), and the size of the connecting ring (103) is smaller than the size of the driving ring (301).

9. The integrated device for negative pressure aspiration and laser lithotripsy of hepatobiliary stones according to claim 5, wherein: A main body mechanism (4) is arranged on the side of the wrapping mechanism (1), the main body mechanism (4) includes a suction pipe (401), a negative pressure pipe (402) is fixedly connected to the side of the suction pipe (401), one end of the suction pipe (401) is fixedly connected with a driver (403), and the driver (403) is respectively provided with an expansion button (404), a gravel crushing button (405) and a negative pressure button (406).

10. The integrated device for negative pressure aspiration and laser lithotripsy of hepatobiliary calculi according to claim 9, characterized in that: One end of the suction pipe (401) away from the driver (403) is fixedly connected with one end of the elastic head (201) close to the laser emitting head (202), and one ends of the driving wire (307) and the laser emitting head (202) away from the buffer pad (102) are both connected with the driver (403).

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