Device for removing common bile duct calculi through gall bladder tube expansion

Abstract

The invention relates to the technical field of common bile duct calculus removing devices, and discloses a common bile duct calculus removing device through gallbladder duct dilatation, the common bile duct calculus removing device comprises a catheter, a controller and a display, rubber tubes are uniformly and fixedly mounted on the side surface of the right end of the catheter, and the right ends of the rubber tubes are fixedly connected with steering sleeves; and gas conveying pipes are evenly and fixedly installed on the inner wall of the guide pipe, a breather pipe is arranged in the gas guide pipe, the right end of the gas guide pipe fixedly communicates with the gas conveying pipe, and the gas conveying pipe communicates with an inner cavity of the rubber pipe. Through the arrangement of the six rubber pipes, when a turning is encountered, the turning direction is determined through observation, then the rubber pipe opposite to the turning direction is inflated with air, then the rubber pipes expand and stretch, the steering sleeve is forced to be bent and steered, the steering sleeve quickly determines the advancing direction, and the steering effect is improved. Therefore, a calculus removing position can be quickly reached, the catheter inserting speed in the operation process is increased, and then the calculus removing efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of common bile duct stone removal devices, in particular to a common bile duct stone removal device via cystic duct dilation. Background Art

[0002] In the field of clinical medicine, common bile duct stones are a common biliary disease. The formation of common bile duct stones is usually related to factors such as changes in bile composition, bile duct infection, and bile stasis. Traditional treatments for common bile duct stones include laparotomy, laparoscopic surgery, and endoscopic retrograde cholangiopancreatography (ERCP). However, these methods all have certain limitations. Laparotomy is traumatic and has a slow recovery. Although laparoscopic common bile duct lithotomy effectively reduces the trauma of laparotomy, it often requires a T-tube to be left in place after surgery, causing inconvenience in life and even the risk of T-tube detachment. In addition, a large loss of digestive fluid can lead to a disorder of the internal environment. Although ERCP lithotomy is a minimally invasive surgery, it may lead to complications such as pancreatitis, and the stone removal effect may not be ideal for larger stones or complex stones. In this context, a common bile duct stone removal device via cystic duct dilation came into being. The cystic duct is an important channel connecting the gallbladder and the common bile duct. By dilating the cystic duct and using a specially designed stone removal device, stones in the common bile duct can be removed more accurately and safely. Because the common bile duct is not cut open and T-tube drainage is not required, there are no complications and inconveniences of T-tube drainage. Therefore, it can greatly reduce pain, shorten hospital stay, save hospitalization costs, and achieve minimally invasive surgery to the greatest extent.

[0003] However, the stone removal device currently used first enters the cystic duct and then extracts the stones through the stone removal net. However, during this process, when the stone removal device enters the cystic duct, it is moving in the human duct and has a limited field of vision. The stone removal device cannot accurately control the direction of drilling when entering, and it is easy to touch the inner wall of the duct. Multiple adjustments and fine-tuning are required to reach the stone removal position, resulting in a long stone removal time and affecting the stone removal efficiency. Summary of the invention

[0004] The present invention provides a common bile duct stone removal device through cystic duct dilation, which has the advantages of being able to quickly reach the stone removal position, convenient operation, and high stone removal efficiency, and solves the problems in the above-mentioned background technology.

[0005] The present invention provides the following technical scheme: a device for removing common bile duct stones through cystic duct dilation, comprising a catheter, a controller and a display, a rubber tube is evenly fixedly installed on the side of the right end of the catheter, the right end of the rubber tube is fixedly connected to a steering sleeve, an air supply pipe is evenly fixedly installed on the inner wall of the catheter, a ventilation pipe is provided inside the air guide tube, the right end of the air guide tube is fixedly connected to the air supply pipe, the air supply pipe is connected to the inner cavity of the rubber tube, an annular hole is provided inside the steering sleeve, a transparent glass cover is fixedly installed on the right end of the steering sleeve and located on the right part of the annular hole, a rotating ring is movably sleeved on the left end of the annular hole, a camera is fixedly installed on the right side of the rotating ring and located in the annular hole, an electric light is fixedly installed on the right side of the rotating ring, an injection tube is movably sleeved in the catheter, a stone removal net is movably sleeved in the injection tube, and the display is electrically connected to the camera through a wire.

[0006] Preferably, there are six rubber tubes in a folded shape.

[0007] Preferably, there are three cameras and three electric lights, which are evenly and movably installed in the annular holes respectively. The left ends of the cameras and electric lights are fixedly connected to the right side of the rotating ring. A hollow shaft motor is fixedly sleeved in the annular hole and located on the left side of the rotating ring. The output end of the hollow shaft motor is fixedly connected to the left side of the rotating ring.

[0008] Preferably, countersunk holes are evenly opened on the outer wall of the right end of the catheter, a steering airbag is installed in the countersunk hole, the inner side surface of the steering airbag is fixedly connected to the bottom surface of the countersunk hole, the cross-section of the steering airbag is triangular, the left end of the steering airbag is in a folded state, a connecting tube is installed between the inner cavity of the steering airbag and the air duct, and a solenoid valve is fixedly installed on the connecting tube.

[0009] Preferably, a protrusion is provided at the right end of the liquid injection tube, and a rubber protective sleeve is movably sleeved on the liquid injection tube and located on the left side of the protrusion, the left end of the rubber protective sleeve is fixedly connected to a support tube, the left end of the support tube is fixedly connected to a connecting sleeve, the connecting sleeve is movably sleeved with the liquid injection tube, and the left end top of the support tube is fixedly connected to an air injection tube.

[0010] A push sleeve is movably connected to the catheter, the right end of which is fixedly connected to an expansion balloon tube, an expansion inflation tube is evenly fixedly installed on the push sleeve, the right end of which is connected to the inner cavity of the expansion balloon tube, and both ends of the expansion balloon tube are tapered.

[0011] The present invention has the following beneficial effects:

[0012] 1. Through the arrangement of six rubber tubes, when encountering a turn, the direction of the turn can be determined by observation. Then, air is filled into a rubber tube located opposite to the turn direction, and the rubber tube expands and stretches, thereby forcing the steering sleeve to bend and turn, so that the steering sleeve can quickly determine the direction of travel, thereby quickly reaching the stone removal position, speeding up the insertion rate of the catheter during the operation, and thus improving the stone removal efficiency. At the same time, through the arrangement of the steering airbag, when the expansion of the rubber tube cannot meet the steering demand, similarly, the solenoid valve connected to the steering airbag on the same side of the rubber tube is opened, and then air is input into the steering airbag, so that the steering airbag opens in a fan shape and contacts the gallbladder wall, thereby forcing the right end of the catheter and the steering sleeve to deflect in the same direction, thereby meeting the needs of different turns, allowing the stone removal device to move smoothly in the gallbladder duct, further speeding up the rate of reaching the stone removal position, and improving the stone removal efficiency.

[0013] 2. Through the provision of the rubber protective sleeve and the support tube, after the stone in the gallbladder duct is covered with the stone removal net, the stone removal net is pulled back to the injection tube, and the stone removal net is contracted through the right end of the injection tube to clamp the stone. Subsequently, the injection tube and the stone removal net are pulled back into the rubber protective sleeve together, and the protrusion at the right end of the injection tube is engaged with the right end of the rubber protective sleeve. Subsequently, air is blown into the rubber protective sleeve through the air injection tube and the support tube to expand the support tube. Subsequently, the support tube is pushed to force the rubber protective sleeve to evert and wrap the stone removal net and the stone. After wrapping, the steering sleeve is pulled out to complete the stone removal. The stone is wrapped with the rubber protective sleeve to avoid scratching the stone against the inside of the bile duct when pulled out, thereby damaging the inner wall of the bile duct, thereby increasing the safety of stone removal and reducing the damage to the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0015] Figure 2 It is a partial cross-sectional schematic diagram of the overall structure of the present invention;

[0016] Figure 3 It is a schematic top view of the structure of the present invention;

[0017] Figure 4 This is a schematic diagram of the distribution of cameras and electric lights in the structure of the present invention;

[0018] Figure 5 This is a schematic diagram of the steering sleeve of the structure of the present invention;

[0019] Figure 6 It is a front view half-section schematic diagram of the structure of the present invention;

[0020] Figure 7 This is a schematic diagram of the installation of the push sleeve structure of the present invention;

[0021] Figure 8 It is a half-section schematic diagram of the push sleeve structure of the present invention.

[0022] In the figure: 1. catheter; 2. rubber tube; 3. air guide tube; 4. air delivery tube; 5. steering sleeve; 6. transparent glass cover; 7. camera; 8. electric light; 9. injection tube; 10. stone removal net; 11. rubber protective cover; 12. support tube; 13. steering airbag; 14. hollow shaft motor; 15. rotating ring; 16. air injection tube; 17. push sleeve; 18. expansion airbag tube; 19. expansion inflation tube. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-Figure 3 A device for removing common bile duct stones through cystic duct dilation comprises a catheter 1, a controller and a display. A rubber tube 2 is evenly fixedly installed on the right end side of the catheter 1, and a steering sleeve 5 is fixedly connected to the right end of the rubber tube 2. An air supply tube 4 is evenly fixedly installed on the inner wall of the catheter 1. A ventilation tube is provided inside the air guide tube 3. The right end of the air guide tube 3 is fixedly connected to the air supply tube 4, and the air supply tube 4 is connected to the inner cavity of the rubber tube 2. An annular hole is provided inside the steering sleeve 5. A transparent glass cover 6 is fixedly installed on the right end of the steering sleeve 5 and located on the right part of the annular hole. A rotating ring 15 is movably sleeved on the left end of the annular hole. A camera 7 is fixedly installed on the right side of the rotating ring 15 and located in the annular hole. An electric light 8 is fixedly installed on the right side of the rotating ring 15. An injection tube 9 is movably sleeved in the catheter 1, and a stone removal net 10 is movably sleeved in the injection tube 9. The display is electrically connected to the camera 7 through a wire. When it is necessary to extract stones from the patient's gallbladder duct, the steering sleeve 5 is sent into the gallbladder duct through the catheter 1. At this time, the electric lamp 8 provides light, and the camera 7 observes the field of view in front. When encountering a turn, the turning direction is determined by observation. Then, air is filled into a rubber tube 2 located opposite to the turning direction, and then the rubber tube 2 expands and stretches, thereby forcing the steering sleeve 5 to bend and turn, so that the steering sleeve 5 quickly determines the direction of travel, thereby quickly reaching the stone removal position, speeding up the insertion rate of the catheter during the operation, and thus improving the stone removal efficiency; there are six rubber tubes 2, and they are folded, dividing the direction in the gallbladder duct into six parts. When it is necessary to force the steering sleeve 5 to turn, the amount of air filled in different rubber tubes 2 is controlled to quickly complete the turn;

[0025] See also Figure 4, there are three cameras 7 and three electric lights 8, and they are evenly and movably installed in the annular holes respectively. The left ends of the cameras 7 and the electric lights 8 are fixedly connected to the right side of the rotating ring 15. A hollow shaft motor 14 is fixedly sleeved in the annular hole and located on the left side of the rotating ring 15. The output end of the hollow shaft motor 14 is fixedly connected to the left side of the rotating ring 15. Three cameras 7 and electric lights 8 are respectively arranged, so as to provide a relatively uniform and sufficient light at the front end of the steering sleeve 5, and the three cameras 7 can monitor the front of the steering sleeve 5 in all directions, provide a relatively good field of view, and facilitate the subsequent stone removal with a good environment, so as to facilitate the stone removal quickly and accurately. In this process, the rotating ring 15 can be driven to rotate by the hollow shaft motor 14 to adjust the camera angle of the camera 7, but it should be noted that the rotation angle of the rotating ring 15 does not exceed 120 degrees;

[0026] See also Figure 5-Figure 6 , countersunk holes are evenly opened on the outer wall of the right end of the catheter 1, and a steering airbag 13 is installed in the countersunk hole. The inner side of the steering airbag 13 is fixedly connected to the bottom of the countersunk hole. The cross-section of the steering airbag 13 is triangular, and the left end of the steering airbag 13 is in a folded state. A connecting pipe is installed between the inner cavity of the steering airbag 13 and the air guide tube 3, and a solenoid valve is fixedly installed on the connecting pipe. When the expansion of the rubber tube 2 cannot meet the steering demand, similarly, the solenoid valve connected to the steering airbag 13 on the same side of the rubber tube 2 is opened, so as to turn the steering airbag 13 to the desired position. Air is input into the airbag 13, so that the steering airbag 13 opens in a fan shape and contacts the gallbladder wall, thereby forcing the right end of the catheter 1 and the steering sleeve 5 to deflect in the same direction, thereby meeting the needs of different turns, so that the stone removal device can move smoothly in the gallbladder duct, further speeding up the speed of reaching the stone removal position and improving the stone removal efficiency; a protrusion is provided at the right end of the injection tube 9, and a rubber protective sleeve 1 is movably sleeved on the injection tube 9 and located on the left side of the protrusion, and the left end of the rubber protective sleeve 1 is fixedly connected to a support tube 12, the left end of the support tube 12 is fixedly connected with a connecting sleeve, and the connecting sleeve is movably connected with the injection tube 9. The top of the left end of the support tube 12 is fixedly connected with an injection tube 16. When the stone in the gallbladder duct is covered with the stone removal net 10, the stone removal net 10 is pulled back to the injection tube 9, and the stone removal net 10 is tightened by the right end of the injection tube 9 to clamp the stone. Then, the injection tube 9 and the stone removal net 10 are pulled back into the rubber protective sleeve 1 together, and the protrusion at the right end of the injection tube 9 is aligned with the rubber protective sleeve 1. The right end is clamped, and then air is blown into the rubber protective sleeve 1 through the air injection tube 16 and the support tube 12 to expand the support tube 12, and then the support tube 12 is pushed to force the rubber protective sleeve 1 to turn outward to wrap the stone removal net 10 and the stone. After the wrapping is completed, the steering sleeve 5 is pulled out, and the stone removal is completed. The stone is wrapped by the rubber protective sleeve 1 to prevent the stone from being scratched against the inside of the bile duct when being pulled out, causing damage to the inner wall of the bile duct, thereby increasing the safety of stone removal and reducing the damage to the patient caused by stone removal;

[0027] See also Figure 7-Figure 8 The catheter 1 is movably sleeved with a push sleeve 17, and the right end of the push sleeve 17 is fixedly connected with an expansion balloon tube 18. An expansion and inflation tube 19 is evenly and fixedly installed on the push sleeve 17. The right end of the expansion and inflation tube 19 is connected to the inner cavity of the expansion balloon tube 18. Both ends of the expansion balloon tube 18 are tapered. When performing a stone removal operation, when entering from the gallbladder duct, if the diameter of the gallbladder duct is small, the expansion balloon tube 18 will be pushed by the push sleeve 17 to pass over the steering airbags 13 and 2 to align with the right end of the steering sleeve 5. At the same time, the interior of the steering airbag 13 is inflated, so that the steering airbag 13 squeezes the interior of the catheter 1 to limit the catheter 1. , to prevent the expansion balloon tube 18 from retreating when entering the cystic duct. When entering the cystic duct, the cone at the right end of the expansion balloon tube 18 follows the steering sleeve 5 to enter the cystic duct to expand the cystic duct. When the expansion balloon tube 18 completely enters the cystic duct, the steering balloon 13 is retracted, and the interior of the expansion balloon tube 18 is inflated through the expansion inflation tube 19, so that the expansion balloon tube 18 is inflated and expanded, and the cystic duct is further expanded for the subsequent stone removal process. After the stone is removed, when it is necessary to pass through the cystic duct, the stone removal net 10 drives the stone to the right end of the expansion balloon tube 18, and then withdraws from the cystic duct together with the expansion balloon tube 18 to complete the stone removal.

Claims

1. A device for removing common bile duct stones via cystic duct dilation, comprising a catheter (1), a controller and a display, characterized in that: A rubber tube (2) is evenly fixedly installed on the right end side of the catheter tube (1), and a steering sleeve (5) is fixedly connected to the right end of the rubber tube (2). An air supply pipe (4) is evenly fixedly installed on the inner wall of the catheter tube (1). A ventilation pipe is provided inside the air guide tube (3). The right end of the air guide tube (3) is fixedly connected to the air supply pipe (4). The air supply pipe (4) is connected to the inner cavity of the rubber tube (2). An annular hole is provided inside the steering sleeve (5). A transparent glass cover (6) is fixedly installed at the right end of the annular hole (5), a rotating ring (15) is movably sleeved at the left end of the annular hole, a camera (7) is fixedly installed on the right side of the rotating ring (15) and located in the annular hole, an electric light (8) is fixedly installed on the right side of the rotating ring (15), an injection tube (9) is movably sleeved in the catheter (1), a stone removal net (10) is movably sleeved in the injection tube (9), and the display is electrically connected to the camera (7) through a wire.

2. The common bile duct stone removal device via cystic duct dilation according to claim 1, characterized in that: There are six rubber tubes (2) in a folded shape.

3. The common bile duct stone removal device via cystic duct dilation according to claim 1, characterized in that: There are three cameras (7) and three electric lights (8), which are evenly and movably installed in the annular holes. The left ends of the cameras (7) and the electric lights (8) are fixedly connected to the right side of the rotating ring (15). A hollow shaft motor (14) is fixedly sleeved in the annular hole and located on the left side of the rotating ring (15). The output end of the hollow shaft motor (14) is fixedly connected to the left side of the rotating ring (15).

4. The common bile duct stone removal device via cystic duct dilation according to claim 1, characterized in that: Countersunk holes are evenly formed on the outer wall of the right end of the catheter (1), a steering airbag (13) is installed in the countersunk hole, the inner side surface of the steering airbag (13) is fixedly connected to the bottom surface of the countersunk hole, the cross-section of the steering airbag (13) is triangular, the left end of the steering airbag (13) is in a folded state, a connecting pipe is installed between the inner cavity of the steering airbag (13) and the air guide tube (3), and a solenoid valve is fixedly installed on the connecting pipe.

5. The common bile duct stone removal device via cystic duct dilation according to claim 1, characterized in that: The right end of the liquid injection tube (9) is provided with a protrusion, and a rubber protective sleeve catheter (1) is movably sleeved on the liquid injection tube (9) and located on the left side of the protrusion, and the left end of the rubber protective sleeve catheter (1) is fixedly connected to a support tube (12), and the left end of the support tube (12) is fixedly connected to a connecting sleeve, and the connecting sleeve is movably sleeved with the liquid injection tube (9), and the top of the left end of the support tube (12) is fixedly connected to an air injection tube (16).

6. The common bile duct stone removal device via cystic duct dilation according to claim 1, characterized in that: The catheter (1) is movably sleeved with a push sleeve (17), the right end of which is fixedly connected to an expansion balloon tube (18), and an expansion and inflation tube (19) is evenly and fixedly mounted on the push sleeve (17), the right end of which is connected to the inner cavity of the expansion balloon tube (18), and both ends of the expansion balloon tube (18) are tapered.

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