CN212037662U

CN212037662U - Internal fistula tourniquet

Info

Publication number: CN212037662U
Application number: CN202020176047.4U
Authority: CN
Inventors: 吴庆峰
Original assignee: Hangzhou Red Cross Hospital
Current assignee: Hangzhou Juyinglian Medical Instrument Co ltd
Priority date: 2020-02-17
Filing date: 2020-02-17
Publication date: 2020-12-01
Anticipated expiration: 2030-02-17

Abstract

The utility model relates to the technical field of medical equipment, a internal fistula tourniquet is disclosed, detain the subassembly including binding area, gasbag, gas cell and subsides, be provided with the base of admitting air and the base of giving vent to anger on the gasbag, the base fixed connection intake pipe of admitting air, the relative base one end fixed connection gas cell that admits air of intake pipe, set up the governing valve of ventilating No. one in the intake pipe, the governing valve of ventilating No. one communicates with each other with the intake pipe, base fixed connection outlet duct gives vent to anger, the relative base one end fixed connection air exhaust device that gives vent to anger of outlet duct, set up the governing valve of ventilating No. two the same with the governing valve of ventilating No. one the structure on the. The utility model discloses a gas cell and air exhaust device change the volume size of gasbag, can adjust more comfortable oppression power to stanch the wound, easy operation, and is economical and practical.

Description

Internal fistula tourniquet

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to internal fistula tourniquet.

Background

Hemodialysis is one of treatment modes of many diseases, wherein compression hemostasis after arteriovenous internal fistula puncture and needle withdrawal is one of nursing links after hemodialysis. The current method commonly used in clinic is elastic band compression or artificial compression. The two methods are laborious to use and have poor comfort. Therefore, the method of performing local compression hemostasis by using the balloon compression method is gradually replacing the elastic band compression method. Compared with the compression method adopting the elastic band, the air bag type compression method obviously improves the comfort level of the patient and reduces the incidence rate of complications such as blood seepage, subcutaneous hematoma and the like at the puncture point. The air bag compression method generally fixes an air bag on an arm, and then inflates the air bag, so as to generate a compression force on the arm, thereby achieving the function of stopping bleeding. Therefore, the magnitude of the compression force generated by the balloon is very important to the hemostatic effect and the comfort of the patient. In the prior art, the pressure adjustment of the air bag adopts a precise instrument, so that the whole hemostasis device is complicated to operate, and the hemostasis device is high in manufacturing cost and cannot be effectively popularized in various hospitals.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an internal fistula tourniquet that can manual regulation pressure to solve the problem that above-mentioned background art exists.

In order to achieve the above object, the utility model provides a following technical scheme: an internal fistula tourniquet comprises a binding belt, an air bag, an inflatable bag and a buckle component, wherein the air bag is made of transparent elastic materials, a hemostatic piece is arranged at the bottom of the air bag and is composed of a fixing piece and a cotton ball, the fixing piece is made of transparent soft rubber materials, a concave clamping groove is formed in the fixing piece, the cotton ball is clamped and connected with the clamping groove, an air inlet base and an air outlet base are arranged on the air bag, an air inlet one-way valve I is arranged in the air inlet base, an air outlet one-way valve I is arranged in the air outlet base, the air inlet base is fixedly connected with an air inlet pipe, an L-shaped ventilation regulating valve I is arranged on the air inlet pipe and is composed of a transverse pipe and a vertical pipe, the transverse pipe is vertically communicated with the vertical pipe, a sealing piece is arranged in the transverse pipe and is in threaded connection with the inner part of the transverse, the upper end of the sealing element is provided with a rotating shaft, the upper end of the rotating shaft is provided with a handle, the upper surface of the transverse pipe is provided with a connecting base, the rotating shaft penetrates through the connecting base, a sealing ring is arranged between the rotating shaft and the connecting base, a vent matched with the shape of the sealing plug is arranged in the vertical pipe, the vent is positioned under the sealing plug, the free end of the transverse pipe is fixedly communicated with an inflation pipe, the free end of the vertical pipe is fixedly communicated with an air inlet pipe, the inflation pipe is fixedly communicated with an inflation bag relative to one end of the transverse pipe, the air outlet base is fixedly connected with an air outlet pipe, the air outlet pipe is provided with a second aeration regulating valve, the second aeration regulating valve has the same structure as the first aeration regulating valve, the second aeration regulating valve consists of the second transverse pipe and the second vertical pipe, the, violently manage No. two fixed exhaust tubes that communicate with each other, No. two one end fixed connection air exhaust device are violently managed relatively to the exhaust tube, air exhaust device comprises stack shell, piston rod and piston, the stack shell inner wall is sliding connection with the piston, the stack shell comprises section of thick bamboo epicoele and section of thick bamboo cavity down, section of thick bamboo cavity down bottom sets up the air inlet, the air inlet communicates with each other with the exhaust tube, section of thick bamboo cavity down end is close to air inlet department and sets up No. two air outlet one-way valve.

Furthermore, the inflation pipe is in threaded connection with the first ventilation regulating valve, and the exhaust pipe is in threaded connection with the second ventilation regulating valve.

Further, an air release valve is arranged on the air bag.

Further, a pressure gauge is arranged on the air bag and fixedly connected with the air bag through a guide pipe.

Furthermore, a third ventilation regulating valve is arranged on the catheter, the structure of the third ventilation regulating valve is the same as that of the first ventilation regulating valve, and the free end of the third ventilation regulating valve is communicated with the air bag and the pressure measuring meter through the catheter.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the size of the air bag can be adjusted through the matching of the air exhaust device and the inflatable bag, so that the compression force of the air bag on a hemostasis point is adjusted, proper pressure is found to stanch the wound, and discomfort caused to a patient due to overlarge pressure is avoided;

2. the air bag and the cotton ball fixing piece are made of transparent materials, so that when the size of the air bag is adjusted, medical personnel can observe the bleeding condition of a bleeding point through the air bag, and the operation is very intuitive;

3. the pressure gauge can accurately reflect the internal pressure of the air bag, and as a hemodialysis patient needs to puncture a bleeding point for multiple times and needs to perform hemostasis nursing for multiple times, medical workers can record the internal pressure value of the air bag when the hemostasis is successful for the first time, so that the pressure value can be quickly adjusted to the first pressure value for hemostasis when the hemostasis is performed for the next time, and the time for adjusting the pressure value is shortened;

4. the whole device does not relate to a precise instrument, has low manufacturing cost and is easy to popularize in hospital communities.

Drawings

Fig. 1 is a schematic cross-sectional structure of the present invention;

fig. 2 is an enlarged schematic view of a portion a of fig. 1.

FIG. 3 is a schematic structural view of a first ventilation regulating valve of the present invention;

FIG. 4 is a schematic structural view of the first air regulating valve of the present invention in different use states;

in the figure: 1-a piston rod; 2-a barrel body; 3-air outlet one-way valve II; 4-air outlet pipe; 5-a ventilation regulating valve II; 51-horizontal pipe II; 52-standpipe number two; 6-an air outlet base; 7-an air intake base; 8-air regulating valve number one; 9-an inflatable bag; 10-a buckle component; 11-a binding band; 12-a piston; 13-an air bag; 14-a hemostatic member; 141-cotton ball; 142-a card slot; 143-a fixing member; 15-air release valve; 16-a handle; 17-a seal; 171-a sealing plug; 18-a connection base; 19-a standpipe; 20-horizontal tube; 21-an air inlet pipe; 22-air extraction means; 23-an air inlet; 24-a rotating shaft; 25-a vent; 26-air inlet one-way valve II; 27-cylinder lower cavity; 28-barrel upper chamber; 71-air inlet one-way valve number one; 61-air outlet one-way valve number one; 29-a catheter; 30-pressure measuring meter; 31-an extraction tube; 32-a gas-filled tube; 33-ventilation regulating valve number three.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in figures 1 and 2, the internal fistula tourniquet comprises a tying band 11, an air bag 13, an inflatable bag 9 and a patch component 10. And an air inlet one-way valve No. two 26 is arranged on the air bag 9. The air bag 13 is made of transparent elastic material, which is helpful for the expansion and contraction of the air bag 13, and medical staff can observe the bleeding of the bleeding point through the air bag 13. The bottom of the air bag 13 is provided with a hemostatic member 14, and the hemostatic member 14 is composed of a fixing member 143 and a cotton ball 141. The fixing member 143 is made of transparent soft rubber. The fixing member 143 is provided with a concave catching groove 142, and the cotton ball 141 is caught and connected with the catching groove 142, so that the cotton ball 141 can be conveniently taken out and plugged into the fixing member 14. The tampon 141 needs to be sterilized for use by the health care provider, and therefore, after each use, it needs to be discarded and replaced with a new sterile tampon 141. Wherein, the lower part of the fixing part 143 is a cambered surface, so that the fixing part can be more attached to the arm of a human body. The air bag 13 is provided with an air inlet base 7 and an air outlet base 6. An air inlet one-way valve I71 is arranged in the air inlet base 7. An air outlet one-way valve No. 61 is arranged in the air outlet base 6. The air inlet base 7 is fixedly connected with an air inlet pipe 21, and an L-shaped ventilation regulating valve I8 is arranged on the air inlet pipe 21. As shown in fig. 3, the first ventilation regulating valve 8 is composed of a horizontal pipe 20 and a vertical pipe 19, and the horizontal pipe 20 is vertically communicated with the vertical pipe 19 to form an L shape. A sealing piece 17 is arranged in the transverse pipe 20, and the sealing piece 17 is in threaded connection with the inner part of the transverse pipe 20. The lower end of the sealing member 17 is provided with a sealing plug 171, the upper end of the sealing member 17 is provided with a rotating shaft 24, and the upper end of the rotating shaft 24 is provided with a handle 16. The connecting base 18 is arranged on the upper surface of the transverse tube 20, and the rotating shaft 24 penetrates through the connecting base 18. A sealing ring is arranged between the rotating shaft 24 and the connecting base 18, so that the air tightness in the first ventilation regulating valve 8 is guaranteed when the rotating shaft 24 rotates. Rotation of the handle 16 allows the seal 17 and plug 171 to move up and down. A vent 25 is provided in the standpipe 19 that is positively engaged with the sealing plug 171, and the vent 25 is located directly below the sealing plug 171, so that when the sealing plug 171 is moved down to the vent 25 position, the vent 25 is completely blocked and the cross tube 20 and standpipe 19 are no longer in communication. Therefore, when the vent control valve No. 8 is closed, the handle 16 is simply rotated to move the sealing member 17 toward the vent 25 until the sealing plug 171 completely blocks the vent 25, and the rotation is stopped. Similarly, opening vent regulator valve number 8 requires only counter-rotating handle 16 to move sealing member 17 back toward vent opening 25, so that sealing plug 171 exits vent opening 25. The free end of the transverse tube 20 is fixedly communicated with the inflation tube 32, and the free end of the vertical tube 19 is fixedly communicated with the air inlet tube 21. The air inflation tube 32 is fixed on the end opposite to the transverse tube 20 and communicated with the air inflation bag 9. An external thread is arranged at the free end of the transverse pipe 20, and an internal thread matched with the external thread of the transverse pipe 20 is arranged on the inflating pipe 32, so that the transverse pipe 20 and the inflating pipe 32 are in detachable threaded connection. Such an arrangement. The inflation tube 32 and the airbag 9 can be detached with the inflation stopped. The first ventilation regulating valve 8 can be communicated with the inflation tube 32 and the air inlet tube 21, and plays roles in inflating and limiting the air bag 13. The air outlet base 6 is fixedly connected with an air outlet pipe 4, and a second ventilation regulating valve 5 is arranged on the air outlet pipe 4. The structure of the second ventilation regulating valve 5 is the same as that of the first ventilation regulating valve 8. The second ventilation regulating valve 5 is composed of a second transverse pipe 51 and a second vertical pipe 52, wherein the second transverse pipe 51 has the same structure as the second transverse pipe 20, and the second vertical pipe 52 has the same structure as the second vertical pipe 19. The second vertical pipe 52 is fixedly communicated with the air outlet pipe 4, and the second horizontal pipe 51 is fixedly communicated with the air exhaust pipe 31. One end of the air suction pipe 31 corresponding to the second transverse pipe 51 is fixedly connected with an air suction device 22. The air extractor 22 is composed of a cylinder 2, a piston rod 1 and a piston 12. A sealing ring is arranged between the piston 12 and the inner wall of the barrel body 2. The inner wall of the cylinder body 2 is connected with the piston 12 in a sliding way, and the piston rod 1 can be pulled to slide up and down in the cylinder body 2. The barrel 2 is formed by an upper barrel chamber 28 and a lower barrel chamber 27. An air inlet 23 is arranged at the bottom of the cylinder lower cavity 27, and the air inlet 23 is communicated with an air exhaust pipe 31. And an air outlet one-way valve No. 3 is arranged at the tail end of the cylinder lower cavity 2 close to the air inlet 23, and the maximum displacement point of the piston 12 moving downwards is ensured not to reach the position of the air outlet one-way valve No. 3. The second transverse pipe 51 is also provided with external threads, and the exhaust pipe 31 is provided with internal threads matched with the external threads of the second transverse pipe 51, so that the exhaust pipe 31 and the second ventilation regulating valve 5 are detachably connected through threads. The extraction tube 31 and the extraction device 22 can be detached without inflation and without extraction.

The balloon 13 is provided with a pressure gauge 30, and the pressure gauge 30 is fixedly connected with the balloon 13 through a conduit 29. The duct 29 is provided with a third air passage regulating valve 33, and the third air passage regulating valve 33 has the same structure as the first air passage regulating valve 8. Therefore, the third air passage regulating valve 33 has one end communicating with the duct 29 and the other end threadedly connected and communicating with the pressure gauge 30. When the air pressure adjustment of the air bag 13 is completed, the pressure gauge 30 can be detached, so that the weight of the tourniquet is reduced, and the burden on the arm of the patient is reduced.

A deflation valve 15 is provided on the air bag 13. The air in the air bag 13 can be quickly discharged at one time by opening the air release valve 15.

Hemodialysis patients need to perform vascular puncture for multiple times and need to perform hemostasis nursing for multiple times. Therefore, the pressure gauge 30 is convenient for medical staff or patients to record the pressure value inside the air bag 13 after hemostasis is successful, so that the pressure of the air bag can be quickly adjusted according to the previous pressure value during next hemostasis nursing, and hemostasis is rapidly realized.

The function of the first ventilation regulating valve 8 is to avoid the influence of the first inlet check valve 71 on the air pressure when the air extractor 22 is used, and to ensure that the air inlet pipe 21 is in a sealed state. Because the air pressure in the air outlet pipe 4 is reduced and is smaller than the air pressure in the air bag 13 when the air extractor 22 extracts air, the elastic part in the air outlet one-way valve No. 61 displaces outwards, so that the air in the air bag 13 flows to the air outlet pipe 4, the air pressure in the air bag 13 is reduced and is smaller than the air pressure in the air inlet pipe 21, the elastic part in the air inlet one-way valve No. 71 displaces inwards, the air bag 13 is communicated with the air inlet pipe 21 and is further communicated with the air bag 9, the air pressure in the air bag 9 is reduced and is smaller than the outdoor air pressure, the elastic part in the air inlet one-way valve No. 26 displaces inwards, the air bag 9 is communicated with the outside, the air flows in, if the air outlet adjusting valve No. 8 is not closed, the air vent 25 in the vertical pipe 19 is not closed, air continuously flows in from the air inlet one-way valve No. 71 in the air bag 13, and, the internal air pressure of the air bag 13 cannot be changed and the size of the air bag 13 cannot be changed. In a similar way, when the air bag 13 is inflated by using the inflatable bag 9 under the action of the second ventilation regulating valve 5, the influence of the first air outlet one-way valve 61 on air pressure is avoided, and the air outlet pipe 4 is ensured to be in a sealed state. When the inflatable bag 9 is inflated, the air pressure in the air inlet pipe 21 rises and is greater than the air pressure in the air bag 13, the elastic part in the air inlet one-way valve I71 displaces inwards, so that the air flows to the air bag 13, the air pressure in the air bag 13 rises and is greater than the air pressure in the air outlet pipe 4, the elastic part in the air outlet one-way valve I61 displaces outwards, the air bag 13 is communicated with the air outlet pipe 4, is communicated with the air exhaust pipe 31 and is further communicated with the air exhaust device 22, so that the air pressure in the cylinder lower cavity 27 is increased and is greater than the outdoor air pressure, the elastic part in the air outlet one-way valve II 3 displaces outwards, the cylinder lower cavity 27 is communicated with the outdoor, the air is continuously exhausted out of the cylinder lower cavity 27, if the ventilation regulating valve II 5 is not closed, the air vent in the standpipe II 52 is not closed, the air in the air bag 13 continuously flows in from the air inlet one-way valve I71, and, eventually the airbag 13 fails to inflate.

As shown in fig. 4, the first and second air-

flow adjusting valves

8 and 5 also have a function of changing the air flow rate per second of the inlet duct 21 and the outlet duct 4. The size of the gap between the sealing plug 171 and the vent 25 is adjusted by rotating the up-and-down moving seal 17, thereby changing the size of the air flow cross-sectional area, and further controlling the volume of air flowing through the first and second air

flow control valves

8 and 5 per second. If the air pressure in the air bag 13 needs to be changed in a small range, the handle 16 is rotated for one turn, the sealing element 17 moves upwards for a small distance, the gap between the sealing plug 171 and the ventilation opening 25 is small, the volume of air passing through the first ventilation regulating valve 8 or the second ventilation regulating valve 5 per second is small, the volume of air passing through the air outlet pipe 4 and the air inlet pipe 21 per second is also small, the volume of air finally entering or flowing out of the air bag 13 per second is also small, and the size of the air bag 13 is easy to adjust.

And (3) an inflation principle: when the air inflation bag 9 is squeezed, the air pressure in the air inflation bag 9 and the air inflation tube 32 rises, at the moment, the air pressure in the air inflation bag 9 is larger than the outdoor air pressure, the elastic piece in the air inlet one-way valve No. two 26 is not changed, and the air inflation bag 9 is not communicated with the outdoor; because the air inlet pipe 21 is communicated with the inflation pipe 32, the air pressure in the air inlet pipe 21 rises and is greater than the air pressure in the air bag 13, the elastic part in the air inlet one-way valve I71 is displaced inwards, the air bag 13 is communicated with the air inlet pipe 21, and the air flows into the air bag 13; when the inflatable bag 9 is not contracted any more, the air pressure in the air bag 13 and the air inlet pipe 21 is equal, the elastic part in the one-way valve I71 is restored to the original state, the air bag 13 and the air inlet pipe 21 are not communicated any more, and the inflation is stopped; when the air bag 9 is released, the air bag 9 loses the external pressure of the hand, the internal air flows into the air bag 9 again, the internal air pressure of the air bag 9 is smaller than the outdoor air pressure, the elastic part in the air inlet one-way valve II 26 is displaced inwards, the air bag 9 is communicated with the outdoor, the outdoor air flows into the air bag 9, and the air bag 9 restores the original shape. Thus, repeated squeezing of the airbag 9 can continuously inflate the airbag 13.

The air extraction principle is as follows: when the piston rod 1 is pulled outwards, the air pressure in the cylinder lower cavity 27 is reduced and is smaller than the outdoor air pressure, the air outlet one-way valve No. 3 is closed, the cylinder lower cavity 27 is not communicated with the outside, the air pressure of the air outlet pipe 4 is also reduced and is smaller than the air pressure of the air bag 13, the elastic part in the air outlet one-way valve No. 61 is displaced outwards, so that the air bag 13 is communicated with the air outlet pipe 4, the air in the air bag 13 finally flows to the cylinder lower cavity 27 through the air outlet pipe 4 and the air outlet pipe 31, when the piston rod 1 reaches the top of the cylinder body 2 and stops moving, the air pressure in the air outlet pipe 4 is equal to the air pressure in the air bag 13, the elastic part in the air outlet one-way valve No. 61 is restored to the original state, the air bag 13; when the piston rod 1 is pressed inwards, the air pressure in the cylinder lower cavity 27 is increased and is greater than the outdoor air pressure, the elastic part in the air outlet one-way valve No. 3 is displaced outwards, so that the cylinder lower cavity 27 is communicated with the outdoor, the air in the cylinder lower cavity 27 is exhausted to the outdoor, the air pressure in the air exhaust pipe 31 and the air outlet pipe 4 is also increased and is greater than the air pressure in the air bag 13, the elastic part in the air outlet one-way valve No. 61 is not changed, the valve is in a closed state, when the piston rod 1 is completely pushed into the cylinder body 2 to stop moving, the air pressure in the cylinder lower cavity 27 is equal to the outdoor air pressure, the elastic part in the air outlet one-way valve No. 3 is restored to the original state, the air outlet one-way valve No. 3 is closed. So that repeated stretching of the piston rod 1 allows continuous evacuation of air from the air chamber 12.

The utility model discloses an operating procedure:

1. inserting the sterile cotton ball 141 into the slot 142, and then tying the tying band 11 and the air bag 13 to the arm of the patient by the fastening assembly 10 while aligning the cotton ball 141 on the hemostatic member 14 with the bleeding point;

2. closing the second ventilation regulating valve 5, opening the first ventilation regulating valve 8, stopping when the handle 16 is rotated until the sealing part 17 cannot move upwards any more, wherein the distance between the sealing part 171 and the ventilation opening 25 is the largest, the air quantity per second flowing through the first ventilation regulating valve 8 is the largest, so that the air circulation quantity in the air inlet pipe 21 is also the largest, then repeatedly squeezing the air bag 9 to quickly inflate the air bag 13, observing the bleeding condition of the cotton ball 141 at the same time, stopping the inflation as soon as possible, and closing the first ventilation regulating valve 8 when the bleeding is no longer generated;

3. opening a second ventilation regulating valve 5, properly rotating a handle 6 to enable the air flow flux of an air outlet pipe 4 and an air exhaust pipe 31 to be small, pumping the piston rod 1 up and down to exhaust and reduce pressure of the air bag 13, observing bleeding conditions and inquiring the comfort condition of a patient, avoiding the situation that the air bag 13 has too large volume to press the arm, continuously pumping the piston rod 1 to reduce pressure under the condition of no bleeding, stopping pumping the piston rod 1 immediately when bleeding occurs again, and closing the second ventilation regulating valve 5;

4. the first ventilation regulating valve 8 is opened, the handle 6 is properly rotated, so that the air flow of the air inlet pipe 21 is small, the air inflation bag 9 is slowly squeezed, the air bag 13 is slowly inflated in a small range, the bleeding condition is observed, when the bleeding does not occur, the air can be appropriately refilled for a little, the observation is carried out for 30-60 seconds, the first ventilation regulating valve 8 is closed when the bleeding amount is not increased, the pressure of the air bag 13 is proper, and a patient feels comfortable;

5. recording the value of the pressure measurement 30 meter at the moment for the next hemostasis use;

6. the air bag 9 and the air extractor 22 are adhered to the arm through the adhesive plaster, if the bleeding point of the patient bleeds in a large amount due to some external force factors in the wound healing process, the steps 2 to 4 can be repeated in time, and the wound is stopped bleeding again;

7. and (3) after hemostasis is finished, discarding the used cotton ball 141, detaching the pressure measuring meter 30, the inflatable bag 9 and the air extractor 22, taking down the binding belt 11, and storing and putting all accessories together.

Claims

1. An internal fistula tourniquet which is characterized in that: including binding area (11), gasbag (13), gas cell (9) and subsides knot subassembly (10), gasbag (13) constitute for transparent elastic material, gasbag (13) bottom sets up hemostatic piece (14), hemostatic piece (14) comprise mounting (143) and cotton ball (141), mounting (143) are made for transparent soft rubber material, set up concave draw-in groove (142) on mounting (143), cotton ball (141) are for the card and being connected with draw-in groove (142), be provided with air inlet base (7) and air outlet base (6) on gasbag (13), set up air inlet check valve (71) in air inlet base (7), set up air outlet check valve (61) in air outlet base (6), air inlet base (7) fixed connection intake pipe (21), set up "L" shape ventilation control valve (8) on intake pipe (21), the first ventilation regulating valve (8) is composed of a transverse pipe (20) and a vertical pipe (19), the transverse pipe (20) is vertically communicated with the vertical pipe (19), a sealing element (17) is arranged in the transverse pipe (20), the sealing element (17) is in threaded connection with the inside of the transverse pipe (20), a sealing plug (171) is arranged at the lower end of the sealing element (17), a rotating shaft (24) is arranged at the upper end of the sealing element (17), a handle (16) is arranged at the upper end of the rotating shaft (24), a connecting base (18) is arranged on the upper surface of the transverse pipe (20), the rotating shaft (24) penetrates through the connecting base (18), a sealing ring is arranged between the rotating shaft (24) and the connecting base (18), a ventilation opening (25) matched with the sealing plug (171) in shape is arranged in the vertical pipe (19), the ventilation opening (25) is positioned under the sealing plug (171), and an inflation pipe, the free end of the vertical pipe (19) is fixedly communicated with an air inlet pipe (21), the inflatable pipe (32) is fixedly communicated with an inflatable bag (9) relative to one end of the transverse pipe (20), the air outlet base (6) is fixedly connected with an air outlet pipe (4), the air outlet pipe (4) is provided with a second ventilation regulating valve (5), the second ventilation regulating valve (5) has the same structure as the first ventilation regulating valve (8), the second ventilation regulating valve (5) consists of a second transverse pipe (51) and a second vertical pipe (52), the second transverse pipe (51) has the same structure as the transverse pipe (20), the second vertical pipe (52) has the same structure as the vertical pipe (19), the second vertical pipe (52) is fixedly communicated with the air outlet pipe (4), the second transverse pipe (51) is fixedly communicated with an air exhaust pipe (31), and the air exhaust pipe (31) is fixedly connected with an air extractor (22) relative to one end of the second transverse pipe, air exhaust device (22) comprises stack shell (2), piston rod (1) and piston (12), stack shell (2) inner wall is sliding connection with piston (12), stack shell (2) comprises section of thick bamboo epicoele (28) and section of thick bamboo lower chamber (27), section of thick bamboo lower chamber (27) bottom sets up air inlet (23), air inlet (23) communicate with each other with exhaust tube (31), section of thick bamboo lower chamber (27) end is close to air inlet (23) and locates to set up No. two (3) of check valve of giving vent to anger.

2. An internal fistula tourniquet according to claim 1, wherein: the inflation tube (32) is in threaded connection with the first ventilation regulating valve (8), and the exhaust tube (31) is in threaded connection with the second ventilation regulating valve (5).

3. An internal fistula tourniquet according to claim 1, wherein: and the air bag (13) is provided with an air release valve (15).

4. An internal fistula tourniquet according to claim 1, wherein: the air sac (13) is provided with a pressure measuring meter (30), and the pressure measuring meter (30) is fixedly connected with the air sac (13) through a guide pipe (29).

5. An internal fistula tourniquet according to claim 4, wherein: a third air-vent regulating valve (33) is arranged on the catheter (29), the structure of the third air-vent regulating valve (33) is the same as that of the first air-vent regulating valve (8), and the free end of the third air-vent regulating valve (33) is communicated with the air bag (13) and the pressure measuring meter (30) through the catheter (29).