CN113694351B

CN113694351B - Pressurizing device of double-balloon catheter for repairing air leakage in operation

Info

Publication number: CN113694351B
Application number: CN202111097273.9A
Authority: CN
Inventors: 邹贺; 张佳; 陈晓曙
Original assignee: Wenzhou Peoples Hospital
Current assignee: Wenzhou Peoples Hospital
Priority date: 2021-09-18
Filing date: 2021-09-18
Publication date: 2023-06-20
Anticipated expiration: 2041-09-18
Also published as: CN113694351A

Abstract

The utility model provides a pressure device for repairing two sacculus pipes of gas leakage in art, includes outer tube, location handle, has push rod, connecting pipe, manometer, two sacculus pipes, its characterized in that: the device also comprises a connector which is used for being connected with the connecting pipe, the first air duct and the second air duct simultaneously and allowing gas to enter the first air duct or the second air duct according to the use condition of the inner balloon and the outer balloon; the reminding mechanism is matched with the pressure gauge for use and is positioned in the channel of the outer tube, and the reminding mechanism is allowed to shrink/keep the original state by itself when the channel of the outer tube generates/does not generate gas; the decompression mechanism acts on the outer wall of the front end of the outer tube and is matched with the reminding mechanism, and the decompression mechanism is allowed to be actively opened and release gas when the inflation pressure detected by the pressure gauge exceeds a set value and is actively closed when the inflation pressure is released to be lower than the set value.

Description

Pressurizing device of double-balloon catheter for repairing air leakage in operation

Technical Field

The utility model relates to the field of medical equipment, in particular to a pressurizing device of a double-balloon catheter for repairing air leakage in an operation.

Background

The balloon pressurizing device is generally applied to medical operations such as cardiovascular stenosis and blockage, and is operated in the operation process to inject a contrast agent or a solution such as physiological saline into a diseased part of a patient, so that a doctor can clearly monitor the diseased part of the patient through an electronic computer tomography technology. In addition, in the operation process, the expansion bracket is usually required to support and expand the affected part, and the balloon pressurizing device can also be used for pressurizing, decompressing, evacuating under negative pressure and the like on the balloon at the expansion bracket.

Publication number CN207477787U discloses a balloon pressurization device, which aims to make the adjustment of the pressure of the balloon pressurization device during pressurization, pressure relief or negative pressure evacuation more refined. In order to achieve the above purpose, the balloon pressurizing device provided by the utility model comprises a main body and a piston, wherein a containing cavity is formed in the main body, one end of the piston is contained in the containing cavity and is sealed in the containing cavity along the circumferential direction, the other end of the piston is connected with the main body in a threaded manner and extends out of the main body, and one end of the piston outside the main body is rotated to enable the piston to reciprocate; the pitch range of the screw thread is 1 mm-1.75 mm. The balloon pressurizing device has a simple structure, has no reminding function, and is invisible when in an arteriovenous vessel, so that the dangerous condition of arteriovenous vessel rupture is easy to occur due to the fact that the dangerous condition is too large to grasp by the intuition of medical staff.

Publication number CN206158983U discloses a balloon expanding pressure pump with a pressure alarm device, which comprises an outer tube, a push rod, a piston and a connecting tube, wherein the front port of the outer tube is connected with the connecting tube, and an alarm pressure gauge for detecting the inside of the tube is arranged on the outer wall of the front end of the outer tube; the alarm pressure gauge comprises a round watchcase, a dial plate, a pointer, a power supply, an indicator light and a pressure setting switch, wherein the pressure setting switch is movably arranged on the side wall of the round watchcase, the front end of the pressure setting switch stretches into the watchcase, and an infrared sensor is arranged at the front end of the pressure setting switch; an observation groove is formed in a scale area of the dial, an area of the infrared sensor moving along with the pressure setting switch corresponds to the observation groove up and down, and the infrared sensor below the dial can be observed through the observation groove; the alarm circuit in the alarm pressure gauge is as follows: the pilot lamp forms the series circuit with infrared sensor and is connected with the power, and when infrared sensor during operation circuit intercommunication, the pilot lamp lights. The balloon inflation pressure pump has the reminding function, but the alarm pressure gauge is required to be connected with a power supply, because the balloon inflation pressure pump is connected with the balloon catheter acting on the inside of a human body, potential danger exists when the balloon inflation pressure pump is electrified, namely, the probability of short circuit occurs, the balloon inflation pressure pump still exists although the probability is extremely low, the sound appearing is easy to confuse and see, the sound is similar to the sound of the heart rate monitor when the heart rate monitor detects that the heart rate does not have the beat, and thus, the medical staff in a tension state can be caused to have wrong judgment and extremely dangerous.

Disclosure of Invention

The present utility model has been made to solve the above-mentioned drawbacks of the prior art, and provides a pressurizing device for a dual balloon catheter for repairing air leakage during surgery.

The utility model solves the technical problems by adopting the technical scheme that: the pressurizing device for the double-balloon catheter for repairing air leakage in an operation comprises an outer tube, a positioning handle, a push rod with a piston, a connecting tube, a pressure gauge and the double-balloon catheter, wherein the positioning handle is fixed at the rear end of the outer tube and is provided with a common channel with the outer tube, one end of the push rod with the piston moves in the channel of the outer tube and is circumferentially sealed on the inner wall of the channel, the other end of the push rod is in threaded connection with the positioning handle and extends out of the outer tube and the positioning handle, one end of the connecting tube is connected with the front end of the outer tube, the pressure gauge is arranged on the outer wall of the front end of the outer tube, the double-balloon catheter is provided with a catheter and a double-balloon connected to the front section of the catheter, the double-balloon catheter comprises an inner balloon and an outer balloon, the pressure gauge is used for monitoring the pressure of the inner balloon and the outer balloon, the catheter is provided with a first air duct, a second air duct and a wire duct which are arranged side by side, the first air duct and the second air duct are respectively connected with the inner balloon and the outer balloon, the wire duct are positioned at the central shaft positions of the inner balloon and the outer balloon and are coaxially sleeved by the wire duct. And also comprises

The connector is used for being connected with the connecting pipe, the first air duct and the second air duct simultaneously, and allows gas to enter the first air duct or the second air duct selectively according to the use conditions of the inner balloon and the outer balloon;

the reminding mechanism is matched with the pressure gauge for use and is positioned in the channel of the outer tube, and the reminding mechanism is allowed to shrink/keep the original state by itself when the channel of the outer tube generates/does not generate gas;

the decompression mechanism acts on the outer wall of the front end of the outer tube and is matched with the reminding mechanism, and the decompression mechanism is allowed to be actively opened and release gas when the inflation pressure detected by the pressure gauge exceeds a set value and is actively closed when the inflation pressure is released to be lower than the set value.

Further perfecting, the joint has an internal passage, the internal passage is provided with a left opening, a right opening, an upper opening, a lower opening and a front opening at the joint, the right opening is used for placing a movable piece which axially rotates along the internal passage, and gas is allowed to alternatively enter the first air duct or the second air duct by rotating the movable piece, the left opening is provided with a holding part, the holding part is used for being matched with the movable piece, the upper opening is provided with a cannulated pipe, the lower opening and the front opening are provided with a cannula, and the cannula can be locked when the cannula is inserted into the cannula.

Further perfecting, the movable part is provided with a communicating pipe, the communicating pipe is circumferentially sealed on the inner wall of the inner channel and is hollow, a plurality of vent holes communicated with the inner part of the communicating pipe are formed in the outer surface of the communicating pipe, two sections of gas transmission tracks are formed through the vent holes, and the two sections of gas transmission tracks are allowed to be respectively communicated with the first gas guide pipe and the second gas guide pipe when the movable part rotates to change positions.

Further perfecting, the movable part is provided with inserted bars which are positioned at two ends of the communicating pipe and are integrally formed with the communicating pipe, the holding part is in plug-in fit with one of the inserted bars, and the holding part is allowed to stop rotating around the axis of the inserted bar after the plug-in fit.

Further perfecting, remind the mechanism and include interior pole, outer pole, driving piece, interior pole setting is in the air inlet department of manometer and extend to the passageway of outer tube, and outer pole cup joints each other with interior pole and can be relative linear telescopic movement, and driving piece is simultaneously acted on in interior pole, outer pole to make the one end that is located interior pole be connected with the smooth silk of manometer, and allow through the rotational movement of the smooth silk of driving piece with the telescopic movement conversion outer pole into manometer.

Further perfecting, the driving piece includes initiative portion, passive portion, connecting portion, and initiative portion sets up in outer pole, and passive portion sets up in interior pole, and initiative portion cup joints each other and be swivelling joint cooperation with passive portion, and allows along the length direction linear movement of initiative portion when passive portion rotates, and connecting portion one end is connected with initiative portion, and the other end is connected with decompression mechanism.

Further perfecting, the driving part is also connected with a first connecting rod, one end of the first connecting rod is provided with a main gear, the main gear is positioned at the eccentric position of the sliding wire of the pressure gauge, and a secondary gear is arranged at the central position of the sliding wire of the pressure gauge and is meshed and matched with the main gear.

The decompression mechanism is further improved in that the decompression mechanism comprises an air tap and a decompression valve, the air tap is arranged on the outer wall of the outer tube and communicated with a channel of the outer tube, the decompression valve and the air tap are mutually sleeved and can relatively linearly and telescopically move, a telescopic piece with limited movement is arranged in the decompression valve, the telescopic piece is allowed to be elastically deformed or kept in original shape when the telescopic piece is in overpressure or non-overpressure in the channel of the outer tube, the telescopic piece is further provided with a lock part and a movable rod, the lock part is arranged at the centering position of the telescopic piece, the movable rod is matched with the lock part to be used and extends out of the telescopic piece to be connected with the outer rod, and the lock part is allowed to be automatically unlocked when the movable rod moves to an overpressure line so that the telescopic piece is elastically deformed to realize decompression.

Further perfecting, the lock part is provided with two movable arms which are symmetrically arranged on two sides of the central axis of the movable rod, the movable arms comprise movable arms which transversely slide on the telescopic piece and are matched with the movable rod for use, the movable arms are allowed to be inserted into/not inserted into the valve wall of the pressure relief valve through movement of the movable rod, and the movable arms in the telescopic piece are sleeved with reset springs.

Further perfecting, the expansion amount of the expansion piece is adjustable.

The beneficial effects of the utility model are as follows:

1. the pressurizing device selectively inflates the double-balloon catheter, the double-balloon catheter is selected, so that the catheter does not need to be replaced in operation, the compression of the inner balloon and the outer balloon exceeding the expansion range to the arteriovenous vessel can be avoided, the use safety is improved, the condition that the outer balloon is broken when the double-balloon catheter is inserted into the arteriovenous vessel is not visible, the condition is fed back to medical staff in time because the double-balloon catheter is not visible, a reminding mechanism is arranged, the shrinkage change of the reminding mechanism is utilized to intuitively reflect the condition to the medical staff, and therefore the inner balloon is inflated in time, and meanwhile, the possibility that whether the inflation is in place or not is mastered by the intuition of the medical staff in the pressurizing and inflating process is too high is avoided, so that the pressure reducing mechanism is arranged, and can be actively opened and released when the inflation pressure detected by the pressure gauge exceeds a set value, and is actively closed when the pressure gauge is released to be lower than the set value;

2. the utility model selectively inflates the double-balloon catheter through the joint, and forms two effective gas transmission paths through the movable part, wherein the movable part is also a control part for converting the gas transmission paths, the two paths are mutually independent and can not cross gas during gas transmission, thereby realizing the object of selectively inflating, namely, inflating either the inner balloon or the outer balloon;

3. the reminding mechanism is composed of the outer rod and the inner rod which are sleeved with each other and can linearly stretch and move relatively, and the telescopic movement of the outer rod is converted into the rotary movement of the slide wire of the pressure gauge connected with the inner rod, so that the reminding mechanism stretches and contracts, and visual change of naked eyes is provided for medical staff;

4. the pressure release mechanism is matched with the reminding mechanism, the expansion piece positioned at the air outlet of the pressure release mechanism is arranged in the pressure release mechanism, the expansion piece stretches and contracts through air pressure, the expansion piece is provided with a locking part for restraining the expansion piece and a moving rod for unlocking the locking part, the moving rod is connected with the reminding mechanism and is unlocked when moving to a pressure release line, the expansion piece is influenced by air pressure to deform, and therefore air release is achieved, and the expansion piece automatically returns to the initial position after pressure release.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of a dual balloon catheter according to the present utility model;

FIG. 3 is a schematic view of the structure of the joint of the present utility model;

FIG. 4 is a schematic view of a movable member according to the present utility model;

FIG. 5 is a schematic diagram of a full section of the alert mechanism of the present utility model;

FIG. 6 is a schematic diagram of a full section of a pressure relief mechanism of the present utility model;

fig. 7 is a schematic diagram of a full-section structure of the cooperation of the reminding mechanism and the pressure release mechanism.

Detailed Description

The utility model is further described below with reference to the accompanying drawings:

referring to fig. 1 and 2: the pressurizing device for the double-balloon catheter for repairing air leakage in operation comprises an outer tube 1, a positioning handle 2, a push rod 3 with a piston, a connecting tube 4, a pressure gauge 5 and a double-balloon catheter 6, wherein the positioning handle 2 is fixed at the rear end of the outer tube 1 and is provided with a common channel with the outer tube 1, one end of the push rod 3 with the piston moves in the channel of the outer tube 1 and is sealed on the inner wall of the channel along the circumferential direction, the other end of the push rod 3 is connected with the positioning handle 2 in a threaded manner and extends out of the outer tube 1 and the positioning handle 2, one end of the connecting tube 4 is connected with the front port of the outer tube 1, the pressure gauge 5 is arranged on the outer wall of the front end of the outer tube 1, the double-balloon catheter 6 is provided with a catheter 61 and a double-balloon 62 connected to the front section of the catheter 61, the double-balloon catheter 62 comprises an inner balloon 62-a and an outer balloon 62-b, the pressure gauge 5 is used for monitoring the pressure of the inner balloon 62-a and the outer balloon 62-b, the catheter 61 is provided with a first air guide tube 61-a and a second air guide tube 61-b arranged side by side, the other end of the guide tube 61-c is connected with the guide tube 61-c, the first air guide tube 61-a and the second air guide tube 61-b and the guide tube 61-c is arranged coaxially with the central shaft 62-b and the outer balloon 62-b is arranged at the central shaft 62-c and the central shaft is arranged coaxially and the central shaft 62 b is arranged with the inner balloon 62-b and the guide tube 62 b is arranged respectively and the guide tube and the guide catheter is arranged. And also comprises

A joint 7, the joint 7 is used for being connected with the connecting pipe 4, the first air duct 61-a and the second air duct 61-b at the same time, and allows gas to enter the first air duct 61-a or the second air duct 61-b alternatively according to the use condition of the inner balloon 62-a and the outer balloon 62-b;

the reminding mechanism is matched with the pressure gauge 5, is positioned in the channel of the outer tube 1 and allows the reminding mechanism to shrink/keep the original state by itself when the channel of the outer tube 1 generates/does not generate gas;

the decompression mechanism acts on the front end outer wall of the outer tube 1 and is matched with the reminding mechanism, and the decompression mechanism is allowed to be actively opened and release gas when the inflation pressure detected by the pressure gauge 5 exceeds a set value, and is actively closed when the inflation pressure is released to be lower than the set value.

The principle of the utility model is that the double balloon catheter 6 is firstly inserted into an arteriovenous vessel of a patient, then gas is conveyed to the second air duct 61-b through the connector 7 to inflate the outer balloon 62-b, obvious friction force is generated when the double balloon catheter 6 is inserted due to the narrow tube diameter of the arteriovenous vessel, so that the outer balloon 62-b can be broken, a reminding mechanism can provide visual reference for medical staff during gas conveying, the reminding mechanism does not shrink or has poor shrinkage performance during gas conveying, the outer balloon 62-b is broken, negative pressure gas cannot be generated in a channel of the outer tube 1, namely the push rod 3 has no moving resistance, so that the outer balloon 62-b cannot be inflated, at the moment, the inner balloon 62-a needs to be started, the double balloon catheter 6 does not need to be pulled out from the arteriovenous vessel, so as to improve the operation efficiency, namely, the joint 7 is used for conveying gas to the first air duct 61-a to inflate the inner balloon 62-a, but the gas distribution of the joint 7 is single, namely, only the first air duct 61-a or the second air duct 61-b can be conveyed with gas at a time, so that the inflation resistance can be reduced to be manual, the inflation pressure of the arteriovenous vessels can be prevented from being too large, namely, the inner balloon 62-a and the outer balloon 62-b are simultaneously inflated, namely, the arteriovenous vessels are prevented from being broken, meanwhile, the conveying amount generated by the inflation is controlled to ensure the safety through equipment instead of manual control, because the double balloon catheter 6 is invisible when being positioned in the arteriovenous vessels, the danger which is grasped by the intuition of medical staff is too large through a decompression mechanism, thereby realizing timely decompression and ensuring the expansion safety of the inner balloon 62-a or the outer balloon 62-b.

Referring to fig. 3 and 4 in combination with fig. 1: for the joint 7, the joint 7 is used as an intermediate member for gas delivery, and not only needs to be connected with the connecting pipe 4, the first gas-guide pipe 61-a and the second gas-guide pipe 61-b at the same time, but also needs to distribute the delivery selection of the gas, thereby realizing alternative delivery, the joint 7 is provided with an inner passage 71, the inner passage 71 is provided with a left opening 71-a, a right opening 71-b, an upper opening 71-c, a lower opening 71-d and a front opening 71-e in the joint 7, the right opening 71-b is used for being placed in a movable member 72 axially rotating along the inner passage 71, and the gas is allowed to alternatively enter the first gas-guide pipe 61-a or the second gas-guide pipe 61-b by rotating the movable member 72, a holding part 73 is arranged at the left opening 71-a, the holding part 73 is used for being matched with the movable member 72, the upper opening 71-c is provided with a cannulated tube 10, the lower opening 71-d and the front opening 71-e are provided with a cannula 20, the cannula 20 can be locked when the cannulated tube 10 is inserted into the cannula 20, the upper opening 71-c, the lower opening 71-d and the front opening 71-e form the cannulated tube 10 and the cannula 20 which are connected with the connecting tube 4, the first air duct 61-a and the second air duct 61-b, the connecting tube 4, the first air duct 61-a and the second air duct 61-b which are connected are provided with the cannula 20 which is connected with the cannulated tube 10 and the cannula 20, the connection between the cannulated tube 10 and the cannula 20 can be locked and limited, namely, the upper end of the cannulated tube 10 is rotationally connected with a connecting cap 10-a with internal threads, the outer surface of the spigot position of the cannula 20 is provided with external threads, the two parts can be locked by rotating the screw cap 10-a after the insertion fit, and the insertion tube 20 can not be separated from the insertion tube 10 under the action of no external force, so that the tightness of gas delivery is ensured, the gas is delivered into the first gas guide tube 61-a or the second gas guide tube 61-b by rotating the movable part 72, and in order to facilitate the rotation of the movable part 72, the movable part 72 is provided with a holding part 73 which is matched with the movable part 72 at the left opening 71-a, the holding part 73 is mainly used for increasing the holding area which is convenient for the operation of medical staff, and the movable part 72 is provided with a force arm, because the movable part 72 and the internal channel 71 are in a tight fit mode in consideration of the air tightness, the gas leakage can be prevented, and obvious rotation resistance can be generated when the movable part 72 rotates, so that the force arm is increased, the force of medical staff is sufficient when the movable part 72 rotates, and the movable part 72 can be rapidly rotated;

in order to realize the one-by-one distribution of the gas by rotating the movable member 72, the movable member 72 is provided with a communicating pipe 72-b, the communicating pipe 72-b is circumferentially sealed on the inner wall of the inner passage 71 and is hollow in the inside, a plurality of vent holes 72-b1 communicated with the inside of the communicating pipe are formed on the outer surface of the communicating pipe 72-b, two sections of gas transmission tracks are formed through the plurality of vent holes 72-b1, the two sections of gas transmission tracks are allowed to be respectively communicated with the first gas guide pipe 61-a and the second gas guide pipe 61-b when the position of the movable member 72 changes due to rotation, the communicating pipe 72-b is hollow in the inside itself, namely, the gas can enter the communicating pipe 72-b at first time by using the vent holes 72-b1, then the gas is transmitted through the vent holes 72-b1 at different positions, the positions where the vent holes 72-b1 are formed are three, the angle difference between the upper part, the lower part and the right part of the communicating pipe 72-b is 90 degrees, the upper and lower vent holes 72-b1 are respectively matched with the connecting pipe 4 and the second air duct 61-b in the opening stage of the communicating pipe 72-b, so that the outer balloon 62-b is inflated, when the inner balloon 62-a is started, the change position of the vent hole 72-b1 originally positioned at the right part is positioned at the lower part, the change position of the vent hole 72-b1 originally positioned at the lower part is positioned at the left part by rotating the communicating pipe 72-b, the two vent holes 72-b1 are respectively matched with the connecting pipe 4 and the first air duct 61-a, two effective paths of air transmission are formed, and the inflation can be realized only by rotating the communicating pipe 72-b, is convenient and quick.

In order to reduce the rotational resistance of the communicating tube 72-b, the movable member 72 is provided with the insert bars 72-a provided at both ends of the communicating tube 72-b and integrally formed therewith, the holding portion 73 is in insert-fit with one of the insert bars 72-a, and allows the holding portion 73 to be prevented from rotating about the axis of the insert bar 72-a after the insert-fit, the communicating tube 72-b is inserted into the inner passage 71 and sealed circumferentially to the inner wall of the inner passage 71, the rotational resistance thereof can be reduced by reducing the contact area of the communicating tube 72-b with the inner passage 71, but centering thereof needs to be ensured, so that the insert bars 72-a are provided at both ends of the communicating tube 72-b, the diameter difference between the insert bars 72-a and the communicating tube 72-b, i.e., the insert bars 72-a are smaller than the communicating tube 72-b, the insert rod 72-a is not in contact with the inner wall of the inner passage 71, thereby reducing the contact area of the communicating pipe 72-b with the inner passage 71, and the lengths of the two insert rods 72-a are identical, so that the centering of the communicating pipe 72-b can be confirmed by keeping the outer end surface of any one of the insert rods 72-a at the same level as the end surface at the opening of the left opening 71-a or the right opening 71-b, thereby ensuring the stability and the amount of gas transmission, and the insert rods 72-a of any one of the insert rods can also be used in cooperation with the holding portion 73 before the communicating pipe 72-b enters the inner passage 71, the holding portion 73 is provided with insertion openings distributed along the array of the centering positions thereof, the outer peripheral surface of the insert rod 72-a is provided with the inserts in the same number as the insertion openings, this prevents the holding portion 73 from rotating around the axis of the insert pin 72-a after the engagement of the two, and at the same time, the holding portion 73 can also provide a contact surface with the table top or the table top when the communicating pipe 72-b is inserted, thereby preventing the insert pin 72-a from being damaged.

Referring to fig. 5 in combination with fig. 1: the reminding mechanism comprises an inner rod 81, an outer rod 82 and a driving piece 83, wherein the inner rod 81 is arranged at an air inlet of the pressure gauge 5 and extends into a channel of the outer tube 1, the outer rod 82 is sheathed with the inner rod 81 and can linearly and telescopically move relatively, the driving piece 83 simultaneously acts in the inner rod 81 and the outer rod 82, one end of the inner rod 81 is connected with a sliding wire of the pressure gauge 5, the telescopic movement of the outer rod 82 is converted into the rotary movement of the sliding wire of the pressure gauge 5 through the driving piece 83, the reminding mechanism has obvious reminding effect, medical staff can see the naked eyes, the telescopic action of the inner rod 81 and the outer rod 82 is mainly realized, namely, the use length of the reminding mechanism is changed by means of telescopic action, so that the structure of the pressure gauge 5 can be simplified, no electrical components such as a circuit board, a buzzer and the like are added inside the reminding mechanism, the pressure gauge 5 is not required to be electrified because the pressurizing device is connected with the double-balloon catheter 6 acting on the inside of a human body, dangerous hidden danger exists when the pressurizing device is electrified, audio-visual sound cannot be confused, in order to ensure that the outer rod 82 transversely moves under the driving of air, the outer rod 82 is provided with a stress block 82-a on the outer surface of the outer rod 82, the stress block 82-a is positioned at the moving path of the push rod 3, the surface contacted by the stress block 82-a is an inclined surface, the inclined surface is set with the central axis of the inner rod 81 or the outer rod 82 as a reference and is larger than 45 degrees and smaller than 60 degrees, the full contact with the air is realized, the represented movement is transversely moved, the requirement of the change of the length of a reminding mechanism is met, simultaneously under the action of the driving piece 83, the telescopic movement of the outer rod 82 can be converted into the rotary movement of the sliding wire of the pressure gauge 5, therefore, the pointer of the pressure gauge 5 rotates to display the pressure value, and the two are combined to improve the reminding effect;

according to the above structure, the telescopic movement of the outer rod 82 can be converted into the rotational movement of the slide wire of the pressure gauge 5 by the driving member 83, the driving member 83 includes the driving portion 83-a, the driven portion 83-b, the connecting portion 83-c, the driving portion 83-a is disposed in the outer rod 82, the driven portion 83-b is disposed in the inner rod 81, the driving portion 83-a and the driven portion 83-b are in socket joint with each other and are in rotational connection fit, and the driving portion 83-b is allowed to linearly move along the length direction of the driving portion 83-a when rotated, one end of the connecting portion 83-c is connected with the driving portion 83-a, and the other end is connected with the pressure reducing mechanism; the driving part 83-a is connected with the first connecting rod 83-a1, one end of the first connecting rod 83-a1 is provided with a main gear 83-a11, the main gear 83-a11 is positioned at the eccentric position of the sliding wire of the pressure gauge 5, the central position of the sliding wire of the pressure gauge 5 is provided with a secondary gear, the secondary gear is meshed and matched with the main gear 83-a11, the driving part 83 can convert telescopic motion into rotary motion through combining the driving part 83-a with the driven part 83-b, the inner rod 81 provided with the driven part 83-b is internally provided with a step channel 81-a penetrating the inner rod, the step channel 81-a is provided with two sizes, the small-diameter part is provided with a first shaft hole 83-b1 with a spiral track on the inner wall and is used as the driven part 83-b, the driving part 83-a is provided with two first rotating shafts 83-a2 and a second rotating shaft 83-a3 which are mutually sleeved, the connecting piece which can only rotate unidirectionally is arranged between the first rotating shaft 83-a2, the inside of the first rotating shaft 83-a2 is hollow, the top end of the inside of the first rotating shaft 83-a2 is provided with a plurality of first ratchets 83-a21, the top end of the second rotating shaft 83-a3 is provided with second ratchets 83-a31 which are consistent with the first ratchets 83-a21 in number, the first ratchets 83-a21 and the second ratchets 83-a31 are used as the connecting piece, the outer rod 82 is enabled to move to be an external force in the direction close to the pressure gauge 5 by being pushed by external force, the rotation of the outer rod is only unidirectionally moved to be pulled by the other external force by the reset traction of the pressure reducing mechanism after the force is removed, the bidirectional rotation is not caused in one movement, the judgment of medical staff is avoided, the outer part of the upper end of the first rotating shaft 83-a2 is provided with a plurality of clamping blocks 83-a22, the clamping block 83-a22 forms a block-shaped structure body and protrudes out of the first rotating shaft 83-a2 relatively, the clamping block 83-a22 walks in the spiral track of the first shaft hole 83-b1, the connecting part 83-c is provided with a limiting clamping block 83-c1 and a second connecting rod 83-c2, the limiting clamping block 83-c1 is clamped in the lower end of the first rotating shaft 83-a2, the lower end of the second rotating shaft 83-a3 is arranged in the inner part, the two parts realize sliding fit, one end of the second connecting rod 83-c2 passes through the limiting clamping block 83-c1 to be connected with the second rotating shaft 83-a3, the other end of the second connecting rod 83-c2 is connected with the decompression mechanism, a bearing seat is further arranged between the second connecting rod 83-c2 and the second rotating shaft 83-a3, and the bearing seat is utilized to rotate and move the second connecting rod, so that the first ratchet 83-a21 and the second ratchet 83-a31 are matched for use, when the pressure gauge is used integrally, the clamping block 83-a22 can walk in the spiral track of the first shaft hole 83-b1, the spiral track of the first shaft hole 83-b1 is spiral, the first rotating shaft 83-a2 and the second rotating shaft 83-a3 can rotate, the outer rod 82 can rotate when approaching the inner rod 81 under the action of the connecting piece, the outer rod 82 can not rotate when moving away from the inner rod 81, the first connecting rod 83-a1 also rotates together when the first rotating shaft 83-a2 rotates, the main gear 83-a11 also rotates together, and the main gear 83-a11 is meshed with the auxiliary gear when the first rotating shaft 83-a2 moves to the end of the first shaft hole 83-b1, and the pointer rotation of the pressure gauge 5 is realized.

Referring to fig. 6 and 7: the decompression mechanism comprises an air tap 91 and a decompression valve 92, wherein the air tap 91 is arranged on the outer wall of the outer tube 1 and is communicated with a channel of the outer tube 1, the decompression valve 92 and the air tap 91 are sheathed with each other and can relatively move in a linear telescopic manner, a telescopic piece 92-a with limited movement is arranged in the decompression valve 92, the telescopic piece 92-a is allowed to deform in a telescopic manner or keep the original state when the telescopic piece 92-a is overpressurized or overpressurized in the channel of the outer tube 1, the telescopic piece 92-a is also provided with a lock part 92-a1 and a first movable rod 92-a2, the lock part 92-a1 is arranged at the central position of the telescopic piece 92-a, the movable rod 92-a2 is matched with the lock part 92-a1 and extends to the outside of the telescopic piece 92-a to be connected with the outer rod 82, and the lock part 92-a1 is allowed to be automatically unlocked when the movable rod 92-a2 moves to an overpressure line so that the telescopic deformation of the telescopic piece 92-a is decompressed; the expansion amount of the expansion member 92-a is adjustable, the air tap 91 enables the gas existing in the channel of the outer tube 1 to be discharged outwards, so as to reduce the pressure, because the pressurizing device judges whether the inflation saturation in the inner balloon 62-a or the outer balloon 62-b reaches the accuracy of the mark range or not by the experience of medical staff when the inner balloon 62-a or the outer balloon 62-b is inflated, the oversaturation is easy to happen, the compression force on the arteriovenous vessel is also improved, the arteriovenous vessel wall and the arteriovenous vessel wall are easy to break, the inside bleeding is easy to be caused by the improper, the pressure is extremely dangerous for a patient, the pressure reducing mechanism is arranged to realize the active pressure relief, particularly, the pressure reducing mechanism is realized by utilizing the expansion member 92-a in the pressure relief valve 92, the expansion member 92-a is self-structured by the expansion rod 92-a3, the sealing block 92-a4 and the spring 92-a5, the telescopic rod 92-a3 moves along the air inlet direction of the pressure release valve 92, the sealing block 92-a4 is arranged at the lower end of the telescopic rod 92-a3 and is plugged at the air inlet of the pressure release valve 92, one end of the spring 92-a5 is sleeved on the sealing block 92-a4, the other end of the spring 92-a5 is abutted against the pressure release valve 92, the abutting position is in threaded fit with the adjusting block 92-b, the adjusting block 92-b is in threaded fit with the telescopic rod 92-a1, the adjusting block 92-b can set the compression amount of the spring 92-a5 according to different pressures, namely, the length of the adjusting block 92-a5 in the initial stage is only required to rotate, the telescopic rod 92-a3 moves to one side for patients with different thicknesses of arterial and venous vessels under the pressure effect, the spring 92-a5 is deformed in a telescopic way, the sealing block 92-a4 is separated from the air inlet of the pressure reducing valve 92, the air pressure is discharged from the air outlet of the pressure reducing valve 92, the self-recovery telescopic rod 92-a3 of the spring 92-a5 returns to the original position after the pressure is reduced, and meanwhile, in order to realize the linkage of the pressure reducing mechanism and the reminding mechanism, a locking part 92-a1 and a moving rod 92-a2 are arranged in the telescopic piece 92-a, namely the telescopic rod 92-a1, the moving rod 92-a2 is connected with the outer rod 82, and the locking part 92-a1 is used for setting a constraint force on the telescopic piece 92-a, so that the telescopic piece 92-a cannot deform in a telescopic way under the action of the constraint force under the unlocking-free condition.

According to the above structure, the lock portion 92-a1 is provided with a restraining force to the telescopic member 92-a, under the action of the restraining force, the telescopic member 92-a will not deform in a telescopic manner without unlocking, then the lock portion 92-a1 is required to be unlocked in order to release pressure, the lock portion 92-a1 has two moving arms 92-a11 symmetrically arranged on both sides of the central axis of the moving rod 92-a2, the moving arms 92-a11 slide transversely to the telescopic member 92-a and cooperate with the moving rod 92-a2, and the moving arms 92-a11 are allowed to be inserted into/not inserted into the valve wall of the relief valve 92 by the movement of the moving rod 92-a2, the moving arms 92-a in the telescopic member 92-a are sleeved with the return springs 30, and during unlocking, the moving arms 92-a3 have moving cavities for the moving of the moving rod 92-a2, the diameters of the moving cavities are the same, different diameters do not exist, the moving rod 92-a2 is provided with two diameters, a part with a large diameter is used as an unlocking structure, the unlocking structure is always in abutting connection with the moving arm 92-a11 when pressure relief is achieved, the other end of the moving arm 92-a11 is inserted into the valve wall of the pressure relief valve 92, the expansion and contraction change of the expansion piece 92-a can be avoided when pressure relief is not achieved, the part with the large diameter of the moving rod 92-a2 moves into the moving cavity under the action of the reset spring 30 when the part with the large diameter of the moving rod 92-a2 is separated from the moving arm 92-a11, and the reset spring 30 is in a compression deformation state when the moving arm 92-a11 is in contact with the part with the large diameter of the moving rod 92-a2, so that automatic reset is achieved, and unlocking is achieved.

While the utility model has been shown and described with reference to a preferred embodiment, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the scope of the utility model.

Claims

1. A pressurizing device of a double-balloon catheter for repairing air leakage in an operation comprises an outer tube (1), a positioning handle (2), a push rod (3) with a piston, a connecting tube (4), a pressure gauge (5) and a double-balloon catheter (6), wherein the positioning handle (2) is fixed at the rear end of the outer tube (1) and is provided with a common channel with the outer tube (1), one end of the push rod (3) with the piston moves in the channel of the outer tube (1) and is circumferentially sealed on the inner wall of the channel, the other end of the push rod is in threaded connection with the positioning handle (2) and extends out of the outer tube (1) and the positioning handle (2), one end of the connecting tube (4) is connected with the front port of the outer tube (1), the pressure gauge (5) is arranged on the outer wall of the front end of the outer tube (1), the double-balloon catheter (6) is provided with a catheter (61) and a double-balloon (62) connected to the front section of the catheter (61), the double-balloon catheter (62) comprises an inner balloon (62-a), an outer balloon (62-b), the pressure gauge (5) is used for monitoring the pressure of the inner balloon (62-a), the outer balloon (62-b) and the first airway tube (61-61) and the second airway tube (61-b) are arranged side by side, and the first airway tube (61-b) is arranged The second air duct (61-b) is respectively connected with the inner balloon (62-a) and the outer balloon (62-b), the guide wire tube (61-c) is positioned at the central shaft position of the inner balloon (62-a) and the outer balloon (62-b), and the guide wire tube (61-c) is coaxially sleeved with the central shaft, and is characterized in that: and also comprises

A joint (7), wherein the joint (7) is used for being connected with the connecting pipe (4), the first air duct (61-a) and the second air duct (61-b) at the same time, and allows air to enter the first air duct (61-a) or the second air duct (61-b) alternatively according to the use condition of the inner balloon (62-a) and the outer balloon (62-b);

the reminding mechanism is matched with the pressure gauge (5) to be used and positioned in the channel of the outer tube (1), and the reminding mechanism is allowed to shrink/keep original when the channel of the outer tube (1) generates/does not generate gas;

the decompression mechanism acts on the outer wall of the front end of the outer tube (1) and is matched with the reminding mechanism for use, and the decompression mechanism is allowed to be actively opened and release gas when the inflation pressure detected by the pressure gauge (5) exceeds a set value, and is actively closed when the inflation pressure is released to be lower than the set value;

the reminding mechanism comprises an inner rod (81), an outer rod (82) and a driving piece (83), wherein the inner rod (81) is arranged at an air inlet of the pressure gauge (5) and extends into a channel of the outer tube (1), the outer rod (82) and the inner rod (81) are sheathed with each other and can linearly and telescopically move relatively, the driving piece (83) simultaneously acts in the inner rod (81) and the outer rod (82) and enables one end of the inner rod (81) to be connected with a sliding wire of the pressure gauge (5), and the driving piece (83) is used for converting telescopic movement of the outer rod (82) into rotary movement of the sliding wire of the pressure gauge (5); the driving piece (83) comprises a driving part (83-a), a driven part (83-b) and a connecting part (83-c), wherein the driving part (83-a) is arranged in the outer rod (82), the driven part (83-b) is arranged in the inner rod (81), the driving part (83-a) and the driven part (83-b) are mutually sheathed and connected in a rotating way, and the driving part (83-a) and the driven part (83-b) are allowed to linearly move along the length direction of the driving part (83-a) when rotating, and one end of the connecting part (83-c) is connected with the driving part (83-a), and the other end of the connecting part is connected with the pressure reducing mechanism; the driving part (83-a) is also connected with a first connecting rod (83-a 1), one end of the first connecting rod (83-a 1) is provided with a main gear (83-a 11), the main gear (83-a 11) is positioned at the eccentric position of the sliding wire of the pressure gauge (5), and a secondary gear is arranged at the central position of the sliding wire of the pressure gauge (5) and meshed and matched with the main gear (83-a 11).

2. The pressurizing device for a dual balloon catheter for intraoperative repair of leakage according to claim 1, wherein: the connector (7) is provided with an inner channel (71), the inner channel (71) is provided with a left opening (71-a), a right opening (71-b), an upper opening (71-c), a lower opening (71-d) and a front opening (71-e) in the connector (7), the right opening (71-b) is used for placing a movable piece (72) which axially rotates along the inner channel (71), the movable piece (72) is allowed to rotate so that gas can alternatively enter the first air duct (61-a) or the second air duct (61-b), a holding part (73) is arranged at the left opening (71-a), the holding part (73) is used for being matched with the movable piece (72), an intubated (10) is arranged at the upper opening (71-c), the lower opening (71-d) and the front opening (71-e) are provided with an intubated tube (20), and the intubated tube (20) can be locked when the intubated tube (10) is inserted into the intubated tube (20).

3. The pressurizing device for a dual balloon catheter for intraoperative repair of leakage according to claim 2, wherein: the movable part (72) is provided with a communicating pipe (72-b), the communicating pipe (72-b) is circumferentially sealed on the inner wall of the inner channel (71) and is arranged in a hollow mode, a plurality of vent holes (72-b 1) communicated with the inner part of the communicating pipe are formed in the outer surface of the communicating pipe, two sections of gas transmission tracks are formed through the vent holes (72-b 1), and the two sections of gas transmission tracks are allowed to be respectively communicated with the first gas guide pipe (61-a) and the second gas guide pipe (61-b) when the position of the movable part (72) changes due to rotation.

4. A pressurizing device for a dual balloon catheter for intraoperative repair of leakage according to claim 3, wherein: the movable piece (72) is provided with inserting rods (72-a) which are arranged at two ends of the communicating pipe (72-b) and are integrally formed with the communicating pipe, the holding part (73) is in plug-in fit with one of the inserting rods (72-a), and the holding part (73) is allowed to stop rotating around the axis of the inserting rod (72-a) after the plug-in fit.

5. The pressurizing device for a dual balloon catheter for intraoperative repair of leakage according to claim 1, wherein: the decompression mechanism comprises an air tap (91) and a decompression valve (92), wherein the air tap (91) is arranged on the outer wall of the outer tube (1) and is communicated with a channel of the outer tube (1), the decompression valve (92) and the air tap (91) are mutually sleeved and can linearly and telescopically move relatively, a telescopic piece (92-a) with limited movement is arranged in the decompression valve (92), the telescopic piece (92-a) is allowed to be elastically deformed/kept in an original state when the telescopic piece (92-a) is in overpressure/non-overpressure state in the channel of the outer tube (1), a locking part (92-a 1) and a moving rod (92-a 2) are further arranged on the telescopic piece (92-a 1), the moving rod (92-a 2) is matched with the locking part (92-a 1) to be used and extends to the outside of the telescopic piece (92-a) so as to be connected with the outer rod (82), and the telescopic piece (92-a) is allowed to automatically deform when the moving rod (92-a) moves to the locking part (92-a 1) to enable the telescopic piece (92-a) to be automatically deformed to be unlocked.

6. The pressurizing device for a dual balloon catheter for intraoperative repair of leakage of claim 5, wherein: the lock part (92-a 1) is provided with two movable arms (92-a 11) which are symmetrically arranged on two sides of the central axis of the movable rod (92-a 2), the movable arms (92-a 11) transversely slide on the telescopic piece (92-a) and are matched with the movable rod (92-a 2) for use, and the movable arms (92-a 11) are enabled to be inserted into/not inserted into the valve wall of the pressure relief valve (92) through the movement of the movable rod (92-a 2), and the movable arms (92-a) in the telescopic piece (92-a) are sleeved with a reset spring (30).

7. The pressurizing device for a dual balloon catheter for intraoperative repair of leakage of claim 5, wherein: the expansion and contraction amount of the expansion and contraction piece (92-a) is adjustable.