CN115251815A - Electronic choledochoscope with biliary calculus removing function - Google Patents

Abstract

The invention belongs to the field of medical instruments, and particularly relates to an electronic choledochoscope with a biliary calculus removing function. The technical problems of the invention are as follows: provides an electronic choledochoscope with the function of biliary calculus removal, which can reduce operation steps and shorten operation time. An electronic choledochoscope with the function of biliary calculus removal comprises a light guide bundle, a connector, a water injection valve, a suction valve and the like; the top end of the light guide bundle is connected with a connector, the upper part of the front side of the light guide bundle is connected with a water injection valve and an attraction valve, the water injection valve is positioned above the attraction valve, and the attraction valve is provided with an operation hole. The invention can suck the broken stone out through the air pump without using basket-type lithotripter for operation, reduces operation steps, can take out the broken stone more quickly, shortens operation time, can adjust the angle of the lower part of the light guide beam under the action of the button and the adjusting rope, enables the lower part of the light guide beam to be close to the broken stone, and enables the small suction tube to better suck the broken stone.

Description

Electronic choledochoscope with biliary calculus removing function

Technical Field

The invention belongs to the field of medical instruments, and particularly relates to an electronic choledochoscope with a biliary calculus removing function.

Background

Electronic choledochoscope is an instrument used for treating or diagnosing biliary tract diseases, often used for treating biliary tract stones, for crushing and taking out the stones.

In the in-process of carrying out the biliary tract operation, medical personnel are earlier with alligator pliers with the calculus clamp garrulous, then carry the calculus of smashing with basket type rubble pincers, take out the calculus of smashing, basket type rubble pincers once can only press from both sides the calculus of smashing, so need repeated multiple operation, repeated insert the electronic choledochoscope with basket type rubble pincers in, the calculus that will smash is whole to be taken out, the operation is very loaded down with trivial details, insert basket type rubble pincers moreover and need slowly and cautiously, lead to the operating time overlength.

Aiming at the existing problems, the electronic choledochoscope which can reduce the operation steps and shorten the operation time is designed.

Disclosure of Invention

In order to overcome the defects that the basket type lithotripter needs to be repeatedly inserted into the electronic choledochoscope to completely take out the broken stones, the operation is very complicated, and the operation time is too long, the invention has the technical problems that: provides an electronic choledochoscope with the function of biliary calculus removal, which can reduce operation steps and shorten operation time.

The technical implementation scheme of the invention is as follows: the utility model provides an electron biliary tract mirror with stone function is got to biliary tract, including the leaded light bundle, the connector, the water injection valve, the suction valve, suction means, adjustment mechanism, collection mechanism and steering mechanism, the leaded light bundle top is connected with the connector, leaded light bundle front side upper portion is connected with water injection valve and suction valve, the water injection valve is located suction valve's top, the last handle hole of taking of suction valve, leaded light bundle upper portion is equipped with the suction mechanism who is used for absorbing the calculus, be equipped with adjustment mechanism on the suction mechanism, be equipped with the collection mechanism who is used for collecting the calculus on the adjustment mechanism, be equipped with the steering mechanism who is used for adjusting the angle of leaded light bundle lower part on the leaded light bundle.

Further, the suction means is including the installation pipe, big suction pipe, little suction pipe, shift ring and slip pipe, light pipe bundle right side upper portion is connected with the installation pipe, the intraductal slidingtype of installation is equipped with the slip pipe, the slip pipe is located light pipe bundle, the slip is equipped with the shift ring on the installation pipe, shift ring and slip union coupling, it has big suction hole and little suction hole to open in the slip pipe, the downthehole upper portion slidingtype of big suction is equipped with the big suction pipe that is used for absorbing the calculus, the downthehole upper portion slidingtype of little suction is equipped with the little suction pipe that is used for absorbing the calculus, installation pipe upper portion is run through to big suction pipe and the equal slidingtype of little suction pipe, open slide pipe left side lower part has the opening, big suction hole and little suction hole all communicate with each other with the opening.

Further, adjustment mechanism is including collar, two five-way valve and breather pipe, and collar upper portion sliding connection has the collar, is connected with two five-way valve on the collar, and big straw and little straw all are located two five-way valve, are connected with the breather pipe on the two five-way valve, and breather pipe and little straw intercommunication, two five-way valve can control opening and closing of big straw, little straw and two five-way valve.

Further, collect the mechanism including collecting box, connecting pipe, filter screen and lid, two five-way valve front sides are connected with the collection box that is used for collecting the calculus, collect box upper portion and be connected with the connecting pipe, connecting pipe and collection box intercommunication, the connecting pipe in-connection has the filter screen that is used for blocking the calculus, it has the lid to collect box front side joint.

Further, steering mechanism is including control panel, button, shell and regulation rope, and leaded light bundle front side upper portion is connected with the control panel, and the control panel is located the below of suction valve, and the even spaced eight buttons that are connected with in control panel front side, and leaded light bundle sub-unit connection has the shell, and the inboard even spaced eight regulation ropes that are connected with of shell, eight regulation ropes all with leaded light bundle sub-unit connection, eight regulation ropes pass through electric connection with eight buttons respectively.

The device comprises a mounting pipe, a connecting ring, a piston cylinder, a first piston block, a moving rod, a second piston block, a spring and a sealing block, wherein the upper part of the mounting pipe is connected with the connecting ring in a sliding manner, the front side of the connecting ring is connected with the piston cylinder, the piston cylinder penetrates through the upper part of the mounting pipe in a sliding manner, the piston cylinder is connected and communicated with a collection box, a large suction pipe, a small suction pipe and a sliding pipe are connected with the rear part of the piston cylinder, the moving rod is arranged in the piston cylinder in a sliding manner, the front end of the moving rod is connected with the first piston block, the first piston block is connected with the piston cylinder in a sliding manner, the rear end of the moving rod is connected with the second piston block, the second piston block is connected with the piston cylinder in a sliding manner, the spring is wound on the moving rod, two ends of the spring are respectively connected with the piston cylinder and the first piston block, an arc-shaped opening is formed in the sliding pipe, the arc-shaped opening is communicated with the piston cylinder, the sealing block is arranged in the arc-shaped opening in the sliding manner, and the sealing block can block plug the opening.

Further, still including fixed establishment, fixed establishment is including articulated seat, connecting rod and dog, and installation pipe left side sub-unit connection has articulated seat, and the rotation type is connected with the connecting rod on the articulated seat, and the connecting rod top is connected with the dog that can block the shift ring, dog and installation pipe contact.

Further, the conditioning cord is an electroactive polymer material.

The invention has the beneficial effects that: 1. the invention can suck the broken stone out through the air pump without using basket-type lithotripter for operation, reduces operation steps, can take out the broken stone more quickly, shortens operation time, can adjust the angle of the lower part of the light guide beam under the action of the button and the adjusting rope, enables the lower part of the light guide beam to be close to the broken stone, and enables the small suction tube to better suck the broken stone.

2. Under the effect of sealed piece, can plug up the opening to sealed with the slide tube, the pulling shift ring that need not relapse, it is more convenient to operate.

3. Under the effect of dog, can block the shift ring, avoid the shift ring to take place to remove and influence the calculus that the small suction tube absorbs and breaks off.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a partial perspective view of the present invention.

Fig. 3 is a schematic perspective view of the suction mechanism of the present invention.

Fig. 4 is a schematic view of a first partial body structure of the suction mechanism of the present invention.

Fig. 5 is a schematic view of a second partial body structure of the suction mechanism of the present invention.

Fig. 6 is a schematic perspective view of the adjusting mechanism and the collecting mechanism of the present invention.

Fig. 7 is a schematic perspective view of the partition mechanism of the present invention.

Fig. 8 is a schematic perspective view of a first embodiment of the partition mechanism of the present invention.

Fig. 9 is a schematic perspective view of a second embodiment of the partition mechanism of the present invention.

Fig. 10 is a perspective view of the steering mechanism of the present invention.

Fig. 11 is a schematic view of a first partially-separated body structure of the steering mechanism of the present invention.

Fig. 12 is a schematic view of a second partial body structure of the steering mechanism of the present invention.

Fig. 13 is a schematic perspective view of the fixing mechanism of the present invention.

Reference numbers: 1_ light guide bundle, 2_ connector, 3_ water injection valve, 4_ suction valve, 5_ suction mechanism, 51_ mounting tube, 52_ large suction tube, 53_ small suction tube, 54_ moving ring, 55_ sliding tube, 56_ opening, 57_ large suction hole, 58_ small suction hole, 6_ adjustment mechanism, 61_ mounting ring, 62_ two-position five-way valve, 63_ vent tube, 7_ collection mechanism, 71_ collection box, 72_ connection tube, 73_ filter, 74_ lid, 8_ partition mechanism, 81_ connection ring, 82_ piston cylinder, 83_ first piston block, 84_ moving rod, 85_ second piston block, 86_ spring, 87_ arc port, 88_ seal block, 9_ steering mechanism, 91_ control plate, 92_ button, 93_ housing, 94_ adjustment cord, 10_ fixing mechanism, 101_ seat, 102_ connection rod, 103_ stopper.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings.

Example 1

An electronic choledochoscope with a biliary calculus removing function is disclosed, as shown in fig. 1-2, and comprises a light guide bundle 1, a connector 2, a water injection valve 3, an attraction valve 4, an absorption mechanism 5, an adjusting mechanism 6, a collection mechanism 7 and a steering mechanism 9, wherein the top end of the light guide bundle 1 is connected with the connector 2, the upper portion of the front side of the light guide bundle 1 is connected with the water injection valve 3 and the attraction valve 4, the water injection valve 3 is positioned above the attraction valve 4, the attraction valve 4 is provided with an operation hole, the upper portion of the light guide bundle 1 is provided with the absorption mechanism 5, the absorption mechanism 5 is used for absorbing calculus, the adjusting mechanism 6 is arranged on the absorption mechanism 5, the collection mechanism 7 is arranged on the adjusting mechanism 6, the collection mechanism 7 is used for collecting calculus, the steering mechanism 9 is arranged on the light guide bundle 1, and the steering mechanism 9 is used for adjusting the angle of the lower portion of the light guide bundle 1.

As shown in fig. 3-5, the suction mechanism 5 includes a mounting tube 51, a large suction tube 52, a small suction tube 53, a moving ring 54 and a sliding tube 55, the mounting tube 51 is connected to the upper portion of the right side of the light guide bundle 1, the sliding tube 55 is slidably disposed in the mounting tube 51, the sliding tube 55 is located in the light guide bundle 1, the moving ring 54 is slidably disposed on the mounting tube 51, the moving ring 54 is connected to the sliding tube 55, a large suction hole 57 and a small suction hole 58 are formed in the sliding tube 55, the large suction tube 52 is slidably disposed on the upper portion of the large suction hole 57, the large suction tube 52 is used for sucking stones, the small suction tube 53 is slidably disposed on the upper portion of the small suction hole 58, the small suction tube 53 is used for sucking stones, the large suction tube 52 and the small suction tube 53 both slidably penetrate through the upper portion of the mounting tube 51, an opening 56 is formed on the lower portion of the left side of the sliding tube 55, and both the large suction hole 57 and the small suction hole 58 are communicated with the opening 56.

As shown in fig. 6, the adjusting mechanism 6 includes a mounting ring 61, a two-position five-way valve 62 and a vent pipe 63, the mounting ring 61 is slidably connected to the upper portion of the mounting pipe 51, the two-position five-way valve 62 is connected to the front side of the mounting ring 61, the large suction pipe 52 and the small suction pipe 53 are both located in the two-position five-way valve 62, the vent pipe 63 is connected to the two-position five-way valve 62, the vent pipe 63 is communicated with the small suction pipe 53, and the two-position five-way valve 62 can control the large suction pipe 52, the small suction pipe 53 and the two-position five-way valve 62 to be opened and closed.

As shown in fig. 6, the collecting mechanism 7 includes a collecting box 71, a connecting pipe 72, a filter screen 73 and a cover 74, the collecting box 71 is connected to the front side of the two-position five-way valve 62 through a screw, the collecting box 71 is used for collecting stones, the connecting pipe 72 is connected to the upper portion of the collecting box 71, the connecting pipe 72 is communicated with the collecting box 71, the filter screen 73 is connected to the connecting pipe 72, the filter screen 73 is used for blocking stones, and the cover 74 is clamped to the front side of the collecting box 71.

As shown in fig. 10, 11 and 12, the steering mechanism 9 includes a control plate 91, buttons 92, a housing 93 and adjusting ropes 94, the upper portion of the front side of the light guide bundle 1 is connected with the control plate 91 through screws, the control plate 91 is located below the suction valve 4, the front side of the control plate 91 is connected with eight buttons 92 at uniform intervals around the circumferential direction, the lower portion of the light guide bundle 1 is connected with the housing 93, the inner side of the housing 93 is connected with eight adjusting ropes 94 at uniform intervals around the circumferential direction, all the eight adjusting ropes 94 are connected with the lower portion of the light guide bundle 1, the eight adjusting ropes 94 are respectively electrically connected with the eight buttons 92, and the adjusting ropes 94 are made of electroactive polymer materials.

When stones in the biliary tract need to be taken out, a medical worker connects a flushing pipe to a water injection valve 3, connects a suction pipe to a suction valve 4, connects a light guide bundle 1 to a cold light source, connects a connector 2 to a video collector, and when the light guide bundle 1 is sterilized, firstly, an ETO cap is sleeved on the light guide bundle 1 to prevent the choledochoscope from bursting, when the medical practitioner uses the medical practitioner, the ETO cap is taken down, then the light guide bundle 1 is inserted into the biliary tract, pictures in the biliary tract are displayed on a display screen through the video collector, then, the water injection valve 3 is opened, the biliary tract is cleaned through physiological saline, after the cleaning is finished, the water injection valve 3 is closed, then, the suction valve 4 is opened, the physiological saline remained in the biliary tract is sucked out through the suction pipe, after all the physiological saline is sucked out, the suction valve 4 is closed, then, an alligator clamp is inserted into the light guide bundle 1 through an operation hole on the suction valve 4, then, the gallstones are clamped and crushed through the alligator clamp, the medical staff takes out the alligator forceps, then pushes the moving ring 54 downwards, the moving ring 54 drives the sliding tube 55 to move downwards, the opening 56 is exposed in the biliary tract, the medical staff connects the connecting tube 72 with an external air pump, then closes the large suction tube 52 and the vent tube 63 through the two-position five-way valve 62, opens the small suction tube 53, starts the air pump again, the air pump sucks the broken stones into the sliding tube 55 through the small suction tube 53, the small suction hole 58 and the opening 56, at the moment, the medical staff closes the air pump, then pulls the moving ring 54 upwards, the moving ring 54 drives the sliding tube 55 to move upwards, so that the opening 56 is not exposed in the biliary tract any more, then opens the large suction tube 52 and the vent tube 63 through the two-position five-way valve 62, closes the small suction tube 53, then starts the air pump, the air pump sucks the broken stones in the sliding tube 55 into the collection box 71 through the large suction tube 52 and the large suction hole 57, collect, filter screen 73 can block the calculus that breaks down, avoid the calculus that breaks down to inhale in the air pump, simultaneously, outside air inhales through breather pipe 63 in collecting box 71, ventilate, whole calculus in the slide tube 55 is inhaled and is collected in the box 71 after, close the air pump, then repeat above-mentioned operation, continue to absorb the calculus that breaks down in the biliary tract, do not need to use basket type rubble pincers to operate, reduce the operating procedure, and can take out the calculus that breaks down sooner, shorten the operating time, after the calculus that breaks down is all absorbed and finishes, medical personnel take out light guide bundle 1 from the biliary tract, then open lid 74, take out the calculus that breaks down in the collecting box 71, again with lid 74 lid recovery collecting box 71.

When the angle of the lower part of the light guide beam 1 needs to be adjusted, when the lower part of the light guide beam 1 is close to the crushed stone, medical staff presses one of the buttons 92 according to the position of the crushed stone, the corresponding adjusting rope 94 can be electrified, the adjusting rope 94 is made of an electroactive polymer material and can be contracted after being electrified, so that the lower part of the light guide beam 1 is bent, the angle of the lower part of the light guide beam 1 is adjusted, the lower part of the light guide beam 1 is close to the crushed stone, the small suction pipe 53 can better suck the crushed stone, the buttons 92 are eight, the angles of the lower part of the light guide beam 1 can be adjusted in eight directions, the buttons 92 are pressed again, the corresponding adjusting rope 94 can be powered off, the corresponding adjusting rope 94 is restored to the original state, the lower part of the light guide beam 1 is restored to the original state, when the medical staff clamps the stone through the alligator clamp, the angle of the lower part of the light beam can also be adjusted through the buttons 92 and the adjusting rope 94, and the alligator clamp can better clamp the stone.

Example 2

In addition to embodiment 1, as shown in fig. 7, 8 and 9, the partition mechanism 8 further includes a connection ring 81, a piston cylinder 82, a first piston block 83, a moving rod 84, a second piston block 85, a spring 86 and a sealing block 88, the connection ring 81 is connected to the upper portion of the outer side of the mounting tube 51 through a screw, the piston cylinder 82 is connected to the front side of the connection ring 81 through a screw, the piston cylinder 82 slidably penetrates through the upper portion of the mounting tube 51, the piston cylinder 82 is connected and communicated with the collecting box 71, the large suction tube 52, the small suction tube 53 and the sliding tube 55 are all connected to the rear portion of the piston cylinder 82, the moving rod 84 is slidably disposed in the piston cylinder 82, the first piston block 83 is connected to the front end of the moving rod 84, the second piston block 85 is connected to the rear end of the moving rod 84, the first piston block 83 and the second piston block 85 are both slidably connected to the piston cylinder 82, the spring 86 is wound around the moving rod 84, one end of the spring 86 is connected to the piston cylinder 82, the other end of the spring 86 is connected to the first piston block 83, the sliding tube 55 is opened with an arc opening 87, the arc opening 82 is communicated with the piston cylinder 88, and the sealing block 88 is disposed in the sliding cylinder 88.

When the air pump starts to work, the first piston block 83 is driven to move backwards through air pressure, the spring 86 is compressed, the first piston block 83 moves backwards, the moving rod 84 drives the second piston block 85 to move backwards, the second piston block 85 moves backwards, the sealing block 88 is pushed by air to move downwards, the sealing block 88 blocks the opening 56, and therefore the sliding tube 55 is sealed, the resistance of the spring 86 can reduce the backward movement speed of the second piston block 85, the sealing block 88 cannot immediately block the opening 56, enough time is provided for the small suction tube 53 to suck broken stones, therefore, the moving ring 54 does not need to be pulled repeatedly, the operation is more convenient, when the air pump is closed, the air pressure disappears, the first piston block 83 moves forwards under the action of the spring 86 to reset, the second piston block 85 moves forwards along with the moving, the sealing block 88 is driven by the air pressure to move upwards, and the sealing block 88 no longer blocks the opening 56.

As shown in fig. 13, the fixing device 10 is further included, the fixing device 10 includes a hinge base 101, a connecting rod 102 and a stopper 103, the lower portion of the left side of the mounting tube 51 is connected with the hinge base 101 through a screw, the connecting rod 102 is rotatably connected to the hinge base 101, a damper is arranged between the connecting rod 102 and the hinge base 101, the stopper 103 is connected to the top end of the connecting rod 102, the stopper 103 can block the moving ring 54, and the stopper 103 is in contact with the mounting tube 51.

When the movable ring 54 needs to be moved, the medical staff pushes the stopper 103 leftwards, then pushes the movable ring 54 downwards, and then pushes the stopper 103 rightwards, so that the stopper 103 blocks the movable ring 54, the movable ring 54 is prevented from moving, the small suction tube 53 is prevented from sucking broken stones, and damping is provided between the connecting rod 102 and the hinge base 101, so that the stopper 103 cannot move easily.

The present application is described in detail above, and the principles and embodiments of the present application are described herein by using specific examples, which are only used to help understand the method and the core idea of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims (8)

1. The utility model provides an electron choledochoscope with stone function is got to biliary tract, including leaded light bundle (1), connector (2), water injection valve (3) and suction valve (4), leaded light bundle (1) top is connected with connector (2), leaded light bundle (1) front side upper portion is connected with water injection valve (3) and suction valve (4), water injection valve (3) are located the top of suction valve (4), take the handle hole certainly on suction valve (4), the utility model is characterized by, still including suction mechanism (5), adjustment mechanism (6), collection mechanism (7) and steering mechanism (9), leaded light bundle (1) upper portion is equipped with suction mechanism (5) that are used for absorbing the calculus, be equipped with adjustment mechanism (6) on suction mechanism (5), be equipped with collection mechanism (7) that are used for collecting the calculus on adjustment mechanism (6), be equipped with steering mechanism (9) that are used for adjusting the angle of leaded light bundle (1) lower part on leaded light bundle (1).

2. The electronic choledochoscope with the function of removing the stones in the biliary tract according to claim 1, wherein the suction mechanism (5) comprises a mounting tube (51), a large suction tube (52), a small suction tube (53), a movable ring (54) and a sliding tube (55), the mounting tube (51) is connected to the upper portion of the right side of the light guide bundle (1), the sliding tube (55) is slidably arranged in the mounting tube (51), the sliding tube (55) is located in the light guide bundle (1), the movable ring (54) is slidably arranged on the mounting tube (51), the movable ring (54) is connected with the sliding tube (55), the large suction hole (57) and the small suction hole (58) are formed in the sliding tube (55), the large suction tube (52) for sucking the stones is slidably arranged on the upper portion in the large suction hole (57), the small suction tube (53) for sucking the stones is slidably arranged on the upper portion in the small suction hole (58), the large suction tube (52) and the small suction tube (53) both penetrate through the mounting tube (51), the opening (56) is formed in the lower portion of the left side of the sliding tube (55), and the large suction hole (57) and the small suction hole (58) are communicated with the suction hole (58).

3. The electronic choledochoscope with the biliary calculus removing function according to claim 2, wherein the adjusting mechanism (6) comprises a mounting ring (61), a two-position five-way valve (62) and a ventilation pipe (63), the mounting ring (61) is slidably connected to the upper portion of the mounting pipe (51), the two-position five-way valve (62) is connected to the mounting ring (61), the large suction pipe (52) and the small suction pipe (53) are both located in the two-position five-way valve (62), the ventilation pipe (63) is connected to the two-position five-way valve (62), the ventilation pipe (63) is communicated with the small suction pipe (53), and the two-position five-way valve (62) can control the opening and closing of the large suction pipe (52), the small suction pipe (53) and the two-position five-way valve (62).

4. The electronic choledochoscope with the function of removing the biliary calculus according to claim 3, wherein the collecting mechanism (7) comprises a collecting box (71), a connecting pipe (72), a filter screen (73) and a cover (74), the collecting box (71) for collecting the biliary calculus is connected to the front side of the two-position five-way valve (62), the connecting pipe (72) is connected to the upper portion of the collecting box (71), the connecting pipe (72) is communicated with the collecting box (71), the filter screen (73) for blocking the biliary calculus is connected to the connecting pipe (72), and the cover (74) is clamped to the front side of the collecting box (71).

5. The electronic choledochoscope with the biliary calculus removing function according to claim 4, wherein the steering mechanism (9) comprises a control panel (91), buttons (92), a housing (93) and adjusting ropes (94), the control panel (91) is connected to the upper portion of the front side of the light guide bundle (1), the control panel (91) is located below the suction valve (4), the eight buttons (92) are uniformly connected to the front side of the control panel (91) at intervals, the housing (93) is connected to the lower portion of the light guide bundle (1), the eight adjusting ropes (94) are uniformly connected to the inner side of the housing (93) at intervals, the eight adjusting ropes (94) are all connected to the lower portion of the light guide bundle (1), and the eight adjusting ropes (94) are electrically connected to the eight buttons (92) respectively.

6. The electronic choledochoscope with the biliary calculus removing function according to claim 5, further comprising a separating mechanism (8), wherein the separating mechanism (8) comprises a connecting ring (81), a piston cylinder (82), a first piston block (83), a moving rod (84), a second piston block (85), a spring (86) and a sealing block (88), the connecting ring (81) is slidably connected to the upper portion of the mounting tube (51), the piston cylinder (82) is connected to the front side of the connecting ring (81), the piston cylinder (82) slidably penetrates through the upper portion of the mounting tube (51), the piston cylinder (82) is connected and communicated with the collection box (71), the large suction tube (52), the small suction tube (53) and the sliding tube (55) are all connected to the rear portion of the piston cylinder (82), the moving rod (84) is slidably arranged in the piston cylinder (82), the first piston block (83) is connected to the front end of the moving rod (84), the first piston block (83) is connected to the piston cylinder (82), the second piston block (85) is connected to the rear end of the moving rod (84), the second piston block (85) is connected to the moving rod (82), the piston cylinder (86), the sliding rod (86) is connected to the sliding tube (86), the second piston cylinder (86), the spring (86) is connected to the inner opening of the sliding tube (86), the sliding tube (55), arc mouth (87) and piston cylinder (82) intercommunication, arc mouth (87) internal sliding formula is equipped with sealing block (88), and opening (56) can be stopped up in sealing block (88).

7. The electronic choledochoscope with the biliary calculus removing function according to claim 6, further comprising a fixing mechanism (10), wherein the fixing mechanism (10) comprises a hinged seat (101), a connecting rod (102) and a stopper (103), the hinged seat (101) is connected to the lower portion of the left side of the mounting tube (51), the connecting rod (102) is rotatably connected to the hinged seat (101), the stopper (103) capable of stopping the moving ring (54) is connected to the top end of the connecting rod (102), and the stopper (103) contacts with the mounting tube (51).

8. An electronic choledochoscope having a choledocholithiasis function according to claim 7, wherein the adjustment string (94) is made of an electroactive polymer material.

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