CN107349512B

CN107349512B - Needle-shaped minimally invasive interventional intubation device for pancreaticobiliary angiography

Info

Publication number: CN107349512B
Application number: CN201710518213.7A
Authority: CN
Inventors: 李堃; 尹雪; 梁永生; 任早亮
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-06-29
Filing date: 2017-06-29
Publication date: 2020-02-18
Anticipated expiration: 2037-06-29
Also published as: CN107349512A

Abstract

The invention discloses a needle-shaped minimally invasive interventional intubation device for pancreaticobiliary tract radiography, which belongs to the technical field of medical instruments and mainly comprises a novel needle-shaped knife main body, a guide wire propulsion device and a foot-controlled flushing device, wherein the novel needle-shaped knife main body comprises a push rod, a handle, an electrode plug and a multi-cavity tube, the multi-cavity tube comprises a guide wire cavity inlet, a cleaning liquid cavity inlet, a contrast liquid cavity inlet, a guide wire cavity, a knife wire cavity, a contrast liquid cavity and a cleaning liquid cavity, a guide wire penetrates through the guide wire cavity, a knife wire is arranged in the knife wire cavity, a knife wire chuck is arranged at the far end of the knife wire cavity, the guide wire propulsion device penetrates through the guide wire outside, and the foot-controlled flushing device is connected. In a word, the invention has simple structure, convenient use, high intubation success rate, small damage and low complication rate.

Description

Needle-shaped minimally invasive interventional intubation device for pancreaticobiliary angiography

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a needle-shaped minimally invasive interventional intubation device for pancreaticobiliary tract radiography.

Background

The success of intubation is a precondition for the diagnosis and treatment of ERCP, and the success rate of intubation (99.8%) is obviously improved by the needle-shaped knife for pre-incision or 'windowing' of duodenal papilla for patients with difficult intubation. Guidewires are the basis for diagnostic and therapeutic ERCP and are tools used to achieve and maintain access to the pancreaticobiliary state and to implant and replace other accessories. The important role is further highlighted in difficult intubation, which may be difficult in some cases after pre-incision or "fenestration", where over-selection of the guide wire is required. The risk of pancreatitis after the ERCP operation can be reduced by inserting the guide wire into the choledocholithiasis tube of the sphincter incision knife. However, the conventional needle-shaped knife cannot guide the wire, and subsequent operation is limited.

The common needle-shaped knife needs to probe the intubation after the bile duct signs are seen in the pre-incision or 'windowing' of the case with difficult intubation, and the intubation is not easy to continue to be performed, otherwise, the perforation probability is increased. There are two common ways of handling this time: firstly, after the cutter wire is withdrawn, the needle-shaped cutter is used for probing the cannula at the incision part, and if the intubation is successful, a contrast medium is injected for perspective observation, so that the damage is large, perforation bleeding and other complications are easy to occur in the probing process, and the incidence rate of pancreatitis is increased by incorrect injection of the contrast medium; and secondly, the intubation is selected for replacing the withdrawing needle-shaped knife with a bow-shaped knife or a contrast catheter which is provided with a guide wire, so that the time is wasted by replacing accessories, the disposable accessories are excessively used, and the economic burden of a patient is increased. In some cases of difficult intubation, the chance of success is just as one, and the visual field is unclear due to the change of dissection after incision, and the 'access channel' and the indwelling guide wire must be realized at the moment of position exposure to ensure the operation to continue. Many times, the exchange attachment misses the best intubation opportunity and it is difficult to find the bile duct opening again. Moreover, the common needle-shaped knife is retracted to wash and expose bleeding points only when electrocoagulation hemostasis is carried out, but the visual field is blurred by peripheral bleeding when the knife is extended out again to prepare the electrocoagulation bleeding range, blind electrocoagulation increases complications (for example, delayed bleeding caused by ulcer at the position where electrocoagulation is excessive after the operation), and even perforation of duodenum and the like occur.

Disclosure of Invention

Aiming at the technical problems, the invention provides the needle-shaped minimally invasive interventional intubation device for pancreaticocholangiography, which has the advantages of increasing the intubation success rate, improving the curative effect, reducing the injury, reducing the complications and the like.

The technical scheme of the invention is as follows: a needle-shaped minimally invasive interventional intubation device for pancreaticobiliary angiography mainly comprises a novel needle-shaped knife main body, a guide wire propulsion unit and a foot-controlled flushing device, wherein the novel needle-shaped knife main body comprises a push rod, a handle, an electrode plug and a multi-cavity tube, a push ring is arranged on the near end of the push rod, the far end of the push rod is connected with the near end of the multi-cavity tube through a connector, the handle is sleeved on the main body of the push rod in a penetrating manner, the handle rings are arranged on the left side and the right side of the handle, a stop button is arranged on the inner side, close to the push rod, of the handle rings, the stop button can fix the push rod after being pressed, the electrode plug is connected to one side of the handle, the tail end of the electrode plug is connected with a power supply, the far end of the multi-cavity tube is provided with a developing mark which enables a knife wire to be, preventing miscut or overcut. The near-end outside of multicavity pipe is equipped with seal wire chamber entry, washing fluid chamber entry and radiography fluid chamber entry, and the inside of multicavity pipe is equipped with the seal wire chamber, the seal wire intracavity be equipped with the seal wire, the near-end in seal wire chamber with seal wire chamber entry links to each other, the seal wire passes seal wire advancing device extends the seal wire intracavity through seal wire chamber entry, and the top in seal wire chamber is equipped with the sword silk chamber, be equipped with the sword silk in the sword silk intracavity, the near-end of sword silk with propelling movement ring fixed connection, the middle section and the electrode plug of sword silk touch, and the sword silk chuck has been worn to the distal end of sword silk, the sword silk chuck can be dismantled inside the distal end in sword silk chamber, and the left side of sword silk chamber and seal wire chamber juncture is equipped with the radiography fluid chamber, the radiography fluid chamber with the radiography fluid chamber entry links to each other, the external connection of radiography fluid chamber entry has the syringe, and the right side of, the side wall of the cleaning fluid cavity is provided with a plurality of side holes, so that the cleaning fluid cavity is convenient and quick to wash, and the cleaning fluid can be physiological saline or 8% norepinephrine solution. The near end of the cleaning liquid cavity is connected with the inlet of the cleaning liquid cavity, and the foot-controlled flushing device is connected with the inlet of the cleaning liquid cavity through a first water pipe.

Furthermore, the guide wire propulsion device comprises a handheld propulsion rod, a movable clamping head and a pressing head, the handheld propulsion rod is of a hollow cuboid structure, a longitudinal movable groove is formed in the upper surface of the handheld propulsion rod, a front limiting hole ring and a rear limiting hole ring are respectively arranged on the front end surface and the rear end surface of the handheld propulsion rod, the front limiting hole ring and the rear limiting hole ring are respectively communicated with the longitudinal movable groove, a guide wire groove is formed in the top surface of the movable clamping head, a sliding clamping groove is respectively formed in each of the left side wall and the right side wall of the movable clamping head, the movable clamping head is in sliding connection with the two sides of the longitudinal movable groove through the sliding clamping grooves, the pressing head is fixedly connected with the movable clamping head through a compression spring, a boss is arranged below the pressing head, the boss and the longitudinal movable groove are of an embedded structure, an operator can press the handheld propulsion rod with one hand, when the pressing head is not placed, can make boss and vertical activity groove looks gomphosis, the lockable seal wire promotes simultaneously to remove to add to hold the head and move along vertical activity groove forward, borrow this can at the uniform velocity with the seal wire and impel, when needing to impel once more, unclamp the press head, will remove to add to hold the head and withdraw to the primary importance, repeat above-mentioned step, compare in sending the seal wire with the hand, use seal wire advancing device propelling speed even, efficient and controllability strong.

Still further, the seal wire advancing device still is equipped with spacing passageway under spacing passageway and the spring card on spring clip, the spring clip and goes up spacing passageway fixed connection and put the cross axle central point of press head upper surface puts, spacing passageway sliding connection is in under the spring clip the cross axle position of handheld propulsion pole lower surface, the arm lock of spring clip passes spacing passageway and spring card respectively down on the spring clip spacing passageway, the arm lock end still is equipped with the dog, and when the spring clip is in lax state, can freely promote the seal wire through seal wire advancing device, when pushing down when the press head impels the spring clip simultaneously, the spring clip tightens up and can fix the press head, and then prevents that the seal wire from removing, when needs to remove the seal wire once more, reverse push back spring clip to lax state can.

Further, foot control washing unit includes footboard, lower footboard, small-size suction pump, folding gasbag and stock solution bottle, go up footboard and lower footboard through unilateral even structure as an organic whole, small-size suction pump fixed connection is in the upper surface of lower footboard, folding gasbag is connected in the top of small-size suction pump, the upper surface of folding gasbag with the lower fixed surface of last footboard is connected, the stock solution bottle leads to pipe two to link to each other with small-size suction pump, and foot control washing unit can make operation doctor's hand and foot use, avoids making a round trip to change hand waste time to foot control washing unit still can be through pedal dynamics artificial control washing pressure, and the operation direction just saves time more.

Further, be equipped with water inlet, delivery port and one-way pressurized-water piston on the small-size suction pump, the water inlet with water pipe two links to each other, the delivery port with water pipe one links to each other, is equipped with out water check valve in the delivery port, one-way pressurized-water piston is located inside the folding gasbag, the upper and lower end of one-way pressurized-water piston respectively with small-size suction pump with go up the footboard and link to each other, the foot of footboard is stepped on pressure change small-size suction pump's pumping pressure in the one-way pressurized-water piston accessible to change the flushing pressure of flush fluid, the play water check valve can prevent that the flush fluid from flowing against the counter current.

Furthermore, a cutter channel is arranged at the center of the longitudinal axis of the cutter clamp, the front section of the cutter clamp is in a smooth bullet shape, a thread-shaped boss is arranged at the rear section of the cutter clamp, the rear section of the cutter clamp is clamped in the far end of the cutter cavity, the length ratio of the front section of the cutter clamp to the rear section of the cutter clamp is 1:1-2, and the cutter clamp can further stabilize the cutter and prevent the cutter from moving forward and backward and from generating displacement deviation when contacting with the electrode plug, so that the cutting and electrocoagulation precision is influenced.

Furthermore, the guide wire and the cutter wire can be freely stretched and retracted and can extend out of the far-end outer part of the multi-cavity tube, the guide wire can be pushed out to realize successful intubation when the guide wire is caught and favored in the moment of incision, excessive use of disposable accessories is avoided, the curative effect is improved, and the medical expense is also reduced.

Furthermore, a visual groove is formed in the front face of the pushing rod, and the advancing and retreating conditions of the cutter wire can be seen through the visual groove.

Furthermore, the surface of the knife wire is coated with an insulating protective coating to prevent the operator from being accidentally injured by electrocoagulation.

A working method of a needle-shaped minimally invasive interventional intubation device for pancreaticocholangiography comprises the following steps:

s1: before operation, the guide wire passes through the guide wire advancing device, then the guide wire is inserted into the guide wire cavity from the guide wire cavity inlet, and the guide wire is pushed by the guide wire advancing device so that the guide wire is close to the far end of the guide wire cavity but is not exposed;

s2: the flexible endoscope enters the duodenum along the oral cavity of a patient, the multi-cavity tube is conveyed to the front of the duodenal papilla along the interior of the flexible endoscope, the duodenal papilla is cut through the knife thread, meanwhile, a doctor can step on the foot control flushing device by feet, the pressure of flushing liquid is controlled by the force of stepping, the blood seepage part is flushed, the visual field is kept clear, a bleeding focus is accurately found, and the electric coagulation hemostasis is realized by the knife thread;

s3: and the guide wire is firstly sent into the bile duct or the pancreatic duct by using the guide wire pushing device again, the head part of the multi-cavity tube enters the corresponding bile duct or the pancreatic duct along with the guide wire through a nipple incision according to the pathological change position, contrast liquid is injected into the tube through the contrast liquid cavity, and a doctor finds the problem according to the scanning result of the X-ray machine and provides corresponding treatment.

Compared with the prior art, the invention has the beneficial effects that: the novel needle-shaped knife is particularly suitable for patients with difficult intubation, can push out the guide wire to realize successful intubation by catching a favorable opportunity at the moment of incision, avoids excessive use of disposable accessories, improves the curative effect and reduces the medical expense. The super-selection is carried out by utilizing the super-smooth and flexible zebra guide wire, and compared with the direct intubation of a common needle-shaped knife, the super-selection is beneficial to the bile duct stenosis with serious distortion while reducing the tissue damage. Compared with the method of feeding the guide wire by hand, the guide wire pushing device has the advantages of uniform pushing speed, high efficiency and strong controllability. Meanwhile, when the needle-shaped knife is used for electrocoagulation hemostasis, liquid can be continuously injected for flushing so as to keep the visual field clear, and the electrocoagulation hemostasis is carried out under the condition that the exposed tail end of the knife wire is directly viewed, so that the hemostasis effect of the needle-shaped knife is better than that of a common needle-shaped knife, and the complication is reduced. The foot-controlled flushing device can enable an operator to use hands and feet simultaneously, avoids wasting time when hands are turned back and forth, can also manually control flushing pressure through pedal force, and saves time in operation direction. In a word, the invention has simple structure, convenient use, high intubation success rate, small damage and low complication rate.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a longitudinal cross-sectional view of the guidewire advancement device of the present invention;

FIG. 3 is a schematic view of the construction of a hand-held pusher arm of the present invention;

FIG. 4 is a schematic view of the construction of the miniature pump of the present invention;

FIG. 5 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 6 is a sectional view taken along line B-B of FIG. 5;

fig. 7 is a cross-sectional view taken along line C-C of fig. 5.

Wherein, 1-a novel needle-shaped knife main body, 10-a pushing rod, 100-a pushing ring, 101-a visual groove, 11-a handle, 110-a finger ring, 12-an electrode plug, 13-a multi-cavity tube, 130-a developing mark, 131-a guide wire cavity inlet, 132-a cleaning liquid cavity inlet, 133-a contrast liquid cavity inlet, 134-a guide wire cavity, 135-a knife wire cavity, 136-a contrast liquid cavity, 137-a cleaning liquid cavity, 1370-a side hole, 14-a connector, 15-a stop button, 16-a power supply, 2-a guide wire propulsion device, 20-a handheld propulsion rod, 21-a mobile holding head, 22-a pressing head, 23-a longitudinal movable groove, 24-a front limit hole ring, 25-a rear limit hole ring, 26-a guide wire groove, 27-a sliding clamping groove, 28-compression spring, 29-boss, 210-spring clip, 211-upper limit channel of spring clip, 212-lower limit channel of spring clip, 213-stop, 3-foot control flushing device, 30-water pipe I, 31-upper pedal, 32-lower pedal, 33-small water pump, 330-water inlet, 331-water outlet, 332-one-way water pressing piston, 333-water outlet one-way valve, 34-folding air bag, 35-liquid storage bottle, 36-water pipe II, 4-guide wire, 5-knife thread, 6-knife thread chuck, 60-knife thread channel, 61-thread boss and 7-injection pipe.

Detailed Description

For the convenience of understanding the embodiments of the present invention, the following description is further explained with reference to fig. 1 to 7, which are not intended to limit the embodiments of the present invention.

As shown in fig. 1, a needle-shaped minimally invasive interventional intubation device for pancreaticocholangiography, which mainly comprises a novel needle-shaped knife main body 1, a guide wire propulsion unit 2 and a foot-controlled flushing unit 3, wherein the novel needle-shaped knife main body 1 comprises a push rod 10, a handle 11, an electrode plug 12 and a multi-cavity tube 13, a push ring 100 is arranged on the proximal end of the push rod 10, a visual groove 101 is arranged on the front surface of the push rod 10, and the advance and retreat conditions of a knife wire 5 can be seen through the visual groove 101. The distal end of push rod 10 passes through the near-end of connector 14 with multicavity pipe 13 and links to each other, handle 11 wears to overlap in the main part of push rod 10, both sides are equipped with handle ring 110 about handle 11, handle ring 110 is close to the inboard of push rod 10 and is equipped with stop button 15, stop button 15 can fix push rod 10 after pressing, electrode plug 12 is connected in one side of handle 11, electrode plug 12's end-to-end connection has power 16, the distal end of multicavity pipe 13 is equipped with development mark 130, development mark makes the sword silk all visible under optics and X ray, the position of sword silk can accurately be judged to doctor in the operation, prevent miscut or overcutting.

As shown in fig. 5 and 6, a guide wire cavity inlet 131, a cleaning fluid cavity inlet 132 and a contrast fluid cavity inlet 133 are arranged outside the proximal end of the multi-cavity tube 13, a guide wire cavity 134 is arranged inside the multi-cavity tube 13, a guide wire 4 is arranged in the guide wire cavity 134, the proximal end of the guide wire cavity 134 is connected with the guide wire cavity inlet 131, the guide wire 4 passes through the guide wire propulsion device 2 and extends into the guide wire cavity 134 through the guide wire cavity inlet 131, a cutter wire cavity 135 is arranged above the guide wire cavity 134, and a cutter wire 5 is arranged in the cutter wire cavity 135, wherein the surface of the cutter wire 5 is coated with an insulating protective coating to prevent the operator from being accidentally injured by electrocoagulation. The guide wire 4 and the cutter wire 5 can freely stretch and retract and can extend out of the far end of the multi-cavity tube 13, the guide wire can be pushed out to realize successful intubation when being caught and favored at the moment of incision, too many disposable accessories are avoided, the curative effect is improved, the medical cost is also reduced, the guide wire is a zebra guide wire, the zebra guide wire has a guide head end with super-smoothness and elasticity and easy bending, and the cavity searching performance is improved because the curled guide wire has rigidity and flexibility. The proximal end of the cutter wire 5 is fixedly connected with the pushing ring 100, the middle section of the cutter wire 5 is in contact with the electrode plug 12, the distal end of the cutter wire 5 penetrates through the cutter wire chuck 6, the cutter wire chuck 6 is detachably connected inside the distal end of the cutter wire cavity 135, as shown in fig. 7, a cutter wire channel 60 is arranged at the central position of the longitudinal axis of the cutter wire chuck 6, the front section of the cutter wire chuck 6 is in a smooth bullet shape, the rear section of the cutter wire chuck 6 is provided with a threaded boss 61, the rear section of the cutter wire chuck 6 is clamped inside the distal end of the cutter wire cavity 135, the length ratio of the front section of the cutter wire chuck 6 to the rear section of the cutter wire chuck 6 is 1:1.5, and the cutter wire chuck 6 can further stabilize the cutter wire 5 and prevent displacement deviation when the cutter wire advances and retreats and is in contact with the electrode plug 12, so that the cutting and electrocoagulation precision. The left side of the junction of the cutter wire cavity 135 and the guide wire cavity 134 is provided with a contrast liquid cavity 136, the contrast liquid cavity 136 is connected with an inlet 133 of the contrast liquid cavity, the outside of the inlet 133 of the contrast liquid cavity is connected with an injection tube 7, the right side of the junction of the cutter wire cavity 135 and the guide wire cavity 134 is provided with a cleaning liquid cavity 137, and the side wall of the cleaning liquid cavity 137 is provided with 6 side holes 1370, so that the fast flushing is convenient, wherein the cleaning liquid can be physiological saline or 8% norepinephrine solution. The proximal end of the cleaning liquid cavity 137 is connected with the cleaning liquid cavity inlet 132, and the foot-controlled flushing device 3 is connected with the cleaning liquid cavity inlet 132 through a water pipe one 30.

As shown in fig. 2 and 3, the guide wire pushing device 2 includes a handheld pushing rod 20, a movable clamping head 21 and a pressing head 22, the handheld pushing rod 20 is a hollow cuboid structure, the upper surface of the handheld pushing rod 20 is provided with a longitudinal movable groove 23, the front and rear end surfaces of the handheld pushing rod 20 are respectively provided with a front limiting hole ring 24 and a rear limiting hole ring 25, the front limiting hole ring 24 and the rear limiting hole ring 25 are respectively communicated with the longitudinal movable groove 23, the top surface of the movable clamping head 21 is provided with a guide wire groove 26, the left and right side walls of the movable clamping head 21 are respectively provided with a sliding clamping groove 27, the movable clamping head 21 is slidably connected with two sides of the longitudinal movable groove 23 through the sliding clamping groove 27, the pressing head 22 is fixedly connected with the movable clamping head 21 through a compression spring 28, a boss 29 is arranged below the pressing head 22, the boss 29 and the longitudinal movable groove 23 are in an embedded structure, an operating doctor can hold the pushing rod 20 with one hand, when the pressing head 22 is pressed and not placed, the boss 29 is embedded with the longitudinal movable groove 23, the guide wire 4 can be locked, and meanwhile, the movable clamping head 21 is pushed to move forwards along the longitudinal movable groove 23, so that the guide wire can be pushed at a constant speed, when the guide wire needs to be pushed again, the pressing head 22 is released, the movable clamping head 21 is returned to the original position, the steps are repeated, and compared with the process of sending the guide wire by hand, the guide wire pushing device 2 is used for pushing the guide wire uniformly, the efficiency is high, and the controllability is strong. The guide wire pushing device 2 is further provided with a spring clip 210, a spring clip upper limiting channel 211 and a spring clip lower limiting channel 212, the spring clip upper limiting channel 211 is fixedly connected to the center position of a transverse shaft on the upper surface of the pressing head 22, the spring clip lower limiting channel 212 is slidably connected to the position of a transverse shaft on the lower surface of the handheld pushing rod 20, a clamping arm of the spring clip 210 penetrates through the spring clip upper limiting channel 211 and the spring clip lower limiting channel 212 respectively, a stop dog 213 is further arranged at the tail end of the clamping arm, when the spring clip 210 is in a loose state, the guide wire 4 can be freely pushed through the guide wire pushing device 2, when the pressing head 22 is pressed down and the spring clip 210 is pushed simultaneously, the spring clip 210 tightens up and can fix the pressing head 22, the guide wire 4 is prevented from moving, and when the guide wire 4 needs to be.

As shown in fig. 1, the foot-controlled flushing device 3 comprises an upper pedal 31, a lower pedal 32, a small water pump 33, a folding air bag 34 and a liquid storage bottle 35, wherein the upper pedal 31 and the lower pedal 32 are connected into a whole through a single side, the small water pump 33 is fixedly connected to the upper surface of the lower pedal 32, the folding air bag 34 is connected to the upper side of the small water pump 33, the upper surface of the folding air bag 34 is fixedly connected to the lower surface of the upper pedal 31, the liquid storage bottle 35 is connected to the small water pump 33 through a second water pipe 36, the foot-controlled flushing device 3 can enable an operator to use hands and feet, time waste caused by switching hands and feet is avoided, the foot-controlled flushing device 3 can also manually control flushing pressure through the force of the foot pedal, the operation direction is controlled, and time. As shown in fig. 4, the small water pump 33 is provided with a water inlet 330, a water outlet 331 and a one-way water pressurizing piston 332, the water inlet 330 is connected with the second water pipe 36, the water outlet 331 is connected with the first water pipe 30, the water outlet 331 is provided with a water outlet check valve 333, the one-way water pressurizing piston 332 is located inside the folding air bag 34, the upper end and the lower end of the one-way water pressurizing piston 332 are respectively connected with the small water pump 33 and the upper pedal 31, the one-way water pressurizing piston 332 can change the pumping pressure of the small water pump 33 through the foot-stepping pressure of the upper pedal 31, so as to change the flushing pressure of the flushing liquid, and the water outlet check valve.

s1: before operation, the guide wire 4 is firstly passed through the guide wire advancing device 2, then the guide wire 4 is inserted into the guide wire cavity 134 from the guide wire cavity inlet 131, and is pushed by the guide wire advancing device 2 so that the guide wire 4 is close to the far end of the guide wire cavity 134 but is not exposed;

s2: the flexible endoscope enters the duodenum along the oral cavity of a patient, the multi-cavity tube 13 is conveyed to the front of the duodenal papilla along the interior of the flexible endoscope, the duodenal papilla is cut through the cutter wire 5, meanwhile, a doctor can step on the foot control flushing device 3 by foot, the pressure of flushing liquid is controlled by the force of stepping, the blood seepage part is flushed, the visual field is kept clear, a bleeding focus is accurately found, and the electric coagulation hemostasis is realized by the cutter wire 5;

s3: the guide wire 4 is firstly sent into the bile duct or the pancreatic duct by using the guide wire pushing device 2 again, the head part of the multi-cavity tube 13 enters the bile duct or the pancreatic duct through the papillary incision along with the guide wire 4, the contrast liquid is injected into the duct through the contrast liquid cavity 136, and a doctor finds the problem according to the scanning result of the X-ray machine and provides corresponding treatment.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The needle-shaped minimally invasive interventional intubation device for pancreaticocholangiography is characterized by mainly comprising a novel needle-shaped knife main body (1), a guide wire propulsion unit (2) and a foot-controlled flushing device (3), wherein the novel needle-shaped knife main body (1) comprises a push rod (10), a handle (11), an electrode plug (12) and a multi-cavity tube (13), a push ring (100) is arranged on the near end of the push rod (10), the far end of the push rod (10) is connected with the near end of the multi-cavity tube (13) through a connector (14), the handle (11) is sleeved on the main body of the push rod (10), the handle ring (110) is arranged on the left side and the right side of the handle (11), a stop button (15) is arranged on the inner side, which is close to the push rod (10), of the stop button (15) can fix the push rod (10) after being pressed, the electrode plug (12) is connected to one side of the handle (11), the end-to-end connection of electrode plug (12) has power (16), the distal end of multi-chamber pipe (13) is equipped with development mark (130), and the near-end outside of multi-chamber pipe (13) is equipped with seal wire chamber entry (131), washing liquid chamber entry (132) and radiography liquid chamber entry (133), and the inside of multi-chamber pipe (13) is equipped with seal wire chamber (134), be equipped with seal wire (4) in seal wire chamber (134), the near-end of seal wire chamber (134) with seal wire chamber entry (131) links to each other, seal wire (4) pass seal wire advancing device (2) and extend in seal wire chamber (134) through seal wire chamber entry (131), the top in seal wire chamber (134) is equipped with seal wire chamber (135), be equipped with cutter wire (5) in seal wire chamber (135), the near-end of cutter wire (5) with propelling movement ring (100) fixed connection, the middle section of cutter wire (5) touches with electrode plug (12) and connects, the utility model discloses a medical instrument, including the distal end of sword silk (5) worn sword silk chuck (6), sword silk chuck (6) can be dismantled inside the distal end of sword silk chamber (135), and the left side of sword silk chamber (135) and silk guide chamber (134) juncture is equipped with contrast liquid chamber (136), contrast liquid chamber (136) with contrast liquid chamber entry (133) link to each other, the external connection of contrast liquid chamber entry (133) has injection syringe (7), and the right side of sword silk chamber (135) and silk guide chamber (134) juncture is equipped with washing liquid chamber (137), be equipped with a plurality of side openings (1370) on the lateral wall of washing liquid chamber (137), the near-end of washing liquid chamber (137) with washing liquid chamber entry (132) link to each other, foot control washing unit (3) link to each other through water pipe (30) with washing liquid chamber entry (132);

the guide wire pushing device (2) comprises a handheld pushing rod (20), a movable clamping head (21) and a pressing head (22), the handheld pushing rod (20) is of a hollow cuboid structure, a longitudinal movable groove (23) is formed in the upper surface of the handheld pushing rod (20), the front end face and the rear end face of the handheld pushing rod (20) are respectively provided with a front limiting hole ring (24) and a rear limiting hole ring (25), the front limiting hole ring (24) and the rear limiting hole ring (25) are respectively communicated with the longitudinal movable groove (23), the top surface of the movable clamping head (21) is provided with a guide wire groove (26), the left side wall and the right side wall of the movable clamping head (21) are respectively provided with a sliding clamping groove (27), the movable clamping head (21) is pressed through the sliding clamping grooves (27) and the two sides of the longitudinal movable groove (23) in a sliding mode, and the movable clamping head (21) is fixedly connected with the movable clamping head (22) through a compression spring (28), a boss (29) is arranged below the pressing head (22), and the boss (29) and the longitudinal movable groove (23) are in an embedded structure;

the foot-controlled flushing device (3) comprises an upper pedal (31), a lower pedal (32), a small water suction pump (33), a folding air bag (34) and a liquid storage bottle (35), the upper pedal (31) and the lower pedal (32) are connected into a whole through a single side, the small water suction pump (33) is fixedly connected to the upper surface of the lower pedal (32), the folding air bag (34) is connected above the small water suction pump (33), the upper surface of the folding air bag (34) is fixedly connected with the lower surface of the upper pedal (31), and the liquid storage bottle (35) is connected with the small water suction pump (33) through a second water pipe (36);

a water inlet (330), a water outlet (331) and a one-way water pressing piston (332) are arranged on the small water pump (33), the water inlet (330) is connected with the second water pipe (36), the water outlet (331) is connected with the first water pipe (30), a water outlet one-way valve (333) is arranged in the water outlet (331), the one-way water pressing piston (332) is located inside the folding air bag (34), and the upper end and the lower end of the one-way water pressing piston (332) are respectively connected with the small water pump (33) and the upper pedal (31);

a visual groove (101) is formed in the front face of the pushing rod (10), and the cutter wire (5) can be seen through the visual groove (101);

the guide wire (4) and the cutter wire (5) can freely stretch and retract and can extend out of the far end of the multi-cavity tube (13);

the surface of the cutter wire (5) is coated with an insulating protective coating.