CN212016345U - A kind of plug-in self-stop infusion device - Google Patents

Abstract

The utility model relates to a plug-in type self-stop infusion device, which belongs to the technical field of medical devices. It consists of a float chamber, a liquid storage chamber, a cork piercer, an air intake mechanism and an automatic liquid stop mechanism. The float chamber is an inverted cup-shaped body, and the bottom port of the float chamber is threadedly installed with a liquid storage chamber; the top end face of the float chamber is fixed A cork puncture device is installed, an air intake mechanism is fixed on the float chamber on one side of the cork puncture device, and an automatic liquid stop mechanism is installed in the liquid storage chamber below the cork puncture device through a partition plate. The device has a simple structure, can control the liquid level in the infusion tube through the automatic liquid stop mechanism, and does not allow air to enter the infusion tube, thereby effectively reducing the medical risk caused by the direct use of a disposable infusion set for infusion, and effectively reducing labor intensity , which solves the problem of medical risks and increased labor intensity when infusion is directly infused through a disposable infusion set, and is especially suitable for use when using a disposable infusion set for infusion.

Description

A kind of plug-in self-stop infusion device

technical field

The utility model relates to a plug-in type self-stop infusion device, which belongs to the technical field of medical equipment.

Background technique

In clinical treatment, an infusion set is a common medical consumable, which is often used for intravenous infusion to treat diseases through infusion. At present, most of the ordinary medical disposable infusion sets are used in the infusion process. The disposable infusion set is composed of a drip bucket, an infusion tube and an infusion tube. One end of the drip bucket is provided with an infusion tube, and the end of the infusion tube is provided with an infusion tube. The bottle stopper puncture needle, the liquid inlet tube bottle stopper puncture needle is provided with an air inlet pipe; the other end of the drip bucket is provided with an infusion tube, the end of the infusion tube is provided with an intravenous infusion needle, and the infusion tube is movably equipped with a flow regulator. When the infusion bottle is exchanged or the infusion is completed, if the treatment is not done in time, air will often enter the infusion tube, which may easily cause bubble embolism in the infusion tube. The medical risk of serious problems such as venous embolism, infection, sepsis, etc., and the infusion cannot be continued due to the existence of air bubbles or blood in the infusion tube. Medical personnel need to manually remove the air bubbles and blood before infusion, which increases the work intensity of medical personnel.

SUMMARY OF THE INVENTION

The purpose of the utility model is to provide a plug-in type self-stop infusion device which can effectively reduce the medical risks existing due to the direct use of a disposable infusion set for infusion, and can effectively reduce the labor intensity.

The technical scheme of the present utility model is:

A plug-in self-stop infusion device, which is composed of a float chamber, a liquid storage chamber, a cork piercer, an air intake mechanism and an automatic liquid stop mechanism, and is characterized in that: the float chamber is an inverted cup-shaped body, and the bottom of the float chamber is The port thread is installed with a liquid storage chamber; the top end face of the float chamber is fixed with a cork piercer, an air intake mechanism is fixed on the float chamber on one side of the cork piercer, and the liquid storage chamber below the cork piercer is separated by a The plate is equipped with an automatic liquid stop mechanism.

The automatic liquid stop mechanism is composed of a fixed sliding sleeve, a connecting rod, a floating ball and a plug. The fixed sliding sleeve is an inverted cup-shaped body, and the center of the end face of the fixed sliding sleeve is movably equipped with a connecting rod through the installation hole. One end extends to the outside of the fixed sliding sleeve, and the end of the connecting rod extending outside the fixed sliding sleeve is threaded with a floating ball; .

The upper surface of the plug is provided with a counterweight; and the circumference of the fixed sliding sleeve end under the plug is uniformly distributed with sliding sleeve liquid inlet holes.

The upper surface of the partition plate is provided with installation ring grooves, and the partition plate between the installation ring grooves is provided with liquid through holes, which are intermittently communicated with the liquid inlet holes of the sliding sleeve; the partition plate It is screwed to the fixed sliding sleeve through the installation ring groove.

The air intake mechanism is composed of an assembly block, an air filter cap and an air filter membrane. The assembly block is provided with an air intake hole, which is communicated with the float chamber; one end of the air intake hole is provided with an air filter cap, and the air intake The other end of the hole is provided with an air filter membrane.

The air filter cap is composed of an assembly plate, a connecting spring and a sealing head, the lower surface of the assembly plate is provided with a sealing head, and the sealing head is intermittently sealed with the air inlet; the assembly plate on one side of the sealing head is provided with a connection Reed; the assembling plate is connected with the assembling block through the connecting reed.

An air outlet is arranged on the circumference of the end of the bottle stopper piercer, and a liquid inlet is arranged on the circumference of the bottle stopper piercer below the air outlet, and the air outlet and the liquid inlet are respectively communicated with the float chamber.

The bottom port of the liquid storage chamber is provided with a rubber stopper.

The beneficial effects of the present utility model are:

The plug-in self-stop infusion device has a simple structure, can control the liquid level in the infusion tube through the automatic liquid-stop mechanism, and does not allow air to enter the infusion tube, thereby effectively reducing the medical risks existing in the direct use of the disposable infusion set for infusion , and effectively reduce labor intensity, solve the problem of medical risks and increase labor intensity when infusion directly through a disposable infusion set, especially suitable for use when using a disposable infusion set for infusion.

Description of drawings

Fig. 1 is the structural representation of the present utility model;

Fig. 2 is the top view schematic diagram of the present utility model;

Fig. 3 is the structural representation of A-A direction in Fig. 2;

Fig. 4 is the structural representation of the automatic liquid stop mechanism of the present invention;

Fig. 5 is the structural representation of the utility model fixed sliding sleeve;

Fig. 6 is the structural representation of the partition plate of the present utility model;

Figure 7 is a schematic diagram of the working state of the present invention.

In the picture: 1. Float chamber, 2. Liquid storage chamber, 3. Cork piercer, 4. Air outlet, 5. Liquid inlet, 6. Assembly block, 7. Air filter membrane, 8. Air inlet, 9 , Assembly plate, 10, Connecting spring, 11, Sealing head, 12, Rubber plug, 13, Separation plate, 14, Installation ring groove, 15, Fixed sliding sleeve, 16, Connecting rod, 17, Floating ball, 18, Plug, 19, Mounting hole, 20, Counterweight, 21, Sleeve liquid inlet hole, 22, Liquid through hole, 23, Medicine bottle, 24, Air inlet tube, 25, Liquid inlet tube bottle stopper puncture needle, 26 , Inlet tube, 27, drip bucket, 28, infusion tube, 29, intravenous infusion needle, 30, flow regulator.

Detailed ways

The plug-in self-stop infusion device is composed of a float chamber 1, a liquid storage chamber 2, a cork piercer 3, an air intake mechanism and an automatic liquid stop mechanism. The liquid storage chamber 2 and the float chamber 1 are connected with each other by threads; The chamber 2 is a conical body, the top end face of the float chamber 1 is fixed with a cork piercer 3 of a conical hollow body, and an air outlet 4 is arranged on the circumference of the end of the bottle cork piercer 3, and the cork puncture under the air outlet 4 is punctured. A liquid inlet 5 is arranged on the circumference of the device 3 , and the gas outlet 4 and the liquid inlet 5 are respectively communicated with the float chamber 1 . During operation, the cork piercer 3 is inserted into the cork of the medicine bottle, and the air is injected into the medicine bottle through the air outlet 4 to keep the air pressure in the medicine bottle consistent with the air pressure in the float chamber 1, so that the medicine liquid in the medicine bottle can pass through. The liquid inlet 5 enters the cork piercer 3 , so that the liquid medicine entering the cork piercer 3 enters the float chamber 1 .

The float chamber 1 on the side of the cork piercer 3 is fixed with an air intake mechanism. The air intake mechanism is composed of an assembly block 6, an air filter cap and an air filter film 7. The air hole 8 is communicated with the float chamber 1; one end of the air inlet hole 8 is provided with an air filter cap, which is composed of an assembly plate 9, a connecting spring 10 and a sealing head 11, and the lower surface of the assembly plate 9 is provided with a sealing head 11. The sealing head 11 is intermittently sealed with the air inlet 8 (the connecting spring 10 is movably plugged into the sealing head 11); the assembly plate 9 on one side of the sealing head 11 is provided with a connecting spring 10; the assembly plate 9 is connected by the connecting spring The sheet 10 is connected to the mounting block 6 . The other end of the air inlet hole 8 is provided with an air filter membrane 7 . When working, break the assembly plate 9 and pull out the sealing head 11 from the air inlet 8, so that the air inlet 8 is connected to the outside world, so that the float chamber 1 is connected to the outside world, and the pressure balance between the float chamber 1 and the outside world is maintained, so that the medicine The pressure in the bottle is balanced with the outside world; the function of the air filter membrane 7 is to filter the air entering the air inlet hole 8 to prevent impurities in the air from entering the float chamber 1 without contaminating the liquid medicine in the float chamber 1 . The function of the air filter cap is to block and seal the air intake hole 8 through the sealing head 11 to prevent the air filter membrane at the end of the air intake hole 8 from being pierced due to pressure changes in the air intake hole 8 or foreign matter entering the air intake hole 8 7 will not make the perforated air filter membrane 7; at the same time, it will prevent bacteria, dust and other debris from entering the air intake hole 8, and will not block the pores of the air filter membrane 7 when the air filter membrane 7 is not in use. Reduced permeability.

A partition plate 13 is fixed between the upper port of the liquid storage chamber 2 and the float chamber 1 , the upper surface of the partition plate 13 is provided with a mounting ring groove 14 , and an automatic liquid stop mechanism is installed on the partition plate 13 . The automatic liquid stop mechanism is composed of a fixed sliding sleeve 15 , a connecting rod 16 , a floating ball 17 and a plug 18 . The center of the end face of the fixed sliding sleeve 15 is movably installed with a connecting rod 16 through the installation hole 19. One end of the connecting rod 16 extends to the outside of the fixed sliding sleeve 15, and the end of the connecting rod 16 extending outside the fixed sliding sleeve 15 is threadedly mounted with a floating ball 17. The density of the connecting rod 16 and the floating ball 17 is less than 1g/cm³, that is, the density of the floating ball 17 and the connecting rod 16 is less than that of the liquid medicine, so that the floating ball 17 and the connecting rod 16 can have buoyancy in the liquid medicine. The end of the connecting rod 16 in the fixed sliding sleeve 15 is fixed with a plug 18, the plug 18 is slidably and sealedly connected to the inner wall of the fixed sliding sleeve 15, and the upper surface of the plug 18 is equipped with a counterweight 20; Sliding sleeve liquid inlet holes 21 are evenly distributed on the circumference of the end of the sliding sleeve 15 . A liquid passage hole 22 is provided on the partition plate 13 between the installation ring grooves 14 , and the liquid passage through hole 22 is intermittently communicated with the sliding sleeve liquid inlet hole 21 . When working, the liquid level in the float chamber 1 is high, and when the liquid medicine has buoyancy on the float ball 17 and the connecting rod 16, the float ball 17 and the connecting rod 16 drive the plug 18 to overcome the gravity of the plug 18 and the counterweight 20 to move upward. , and then make the sliding sleeve liquid inlet hole 21 communicate with the liquid through hole 22, that is, the float chamber 1 is connected with the liquid storage chamber 2, so that the liquid medicine in the float chamber 1 can enter the liquid storage chamber 2; the liquid in the float chamber 1 can enter the liquid storage chamber 2; When the position is high and the liquid medicine has no buoyancy on the float ball 17 and the connecting rod 16, the plug 18 seals the liquid through hole 22 and the sliding sleeve liquid inlet hole 21 under the action of its own gravity and the gravity of the counterweight 20, so that the float The liquid medicine in the chamber 1 cannot enter the liquid storage chamber 2 through the sliding sleeve liquid inlet hole 21 and the liquid through hole 22 .

The bottom port of the liquid storage chamber 2 is provided with a rubber plug 12 . The function of the rubber plug 12 is to seal the bottom port of the liquid storage chamber 2 to prevent dust or bacteria from entering the liquid storage chamber 2 without contaminating the liquid storage chamber 2 .

When the toilet-type self-stop infusion device is working, the cork piercer 3 is inserted into the cork of the medicine bottle 23, so that the float chamber 1 is communicated with the medicine bottle 23 through the cork piercer 3, and the cork piercer 3 is inserted into the medicine bottle After 23, the air inlet pipe 24 of the disposable infusion set is sealed, and the puncture needle 25 of the liquid inlet tube stopper of the disposable infusion set is inserted into the rubber stopper 12 of the bottom port of the liquid storage chamber 2, so that the inlet of the disposable infusion set can be stopped. The liquid tube 26 communicates with the liquid storage chamber 2 through the puncture needle 25 of the liquid inlet tube stopper.

After inserting the puncture needle 25 of the liquid inlet tube stopper of the disposable infusion set into the rubber stopper 12 of the bottom port of the liquid storage chamber 2, the sealing head 11 of the air filter cap of the air inlet mechanism is opened from the air inlet hole 8, The float chamber 1 is communicated with the outside world through the air inlet hole 8, and the air can enter the float chamber 1 through the air filter membrane 7 at the end of the air inlet hole 8, and then enter the medicine bottle 23 through the air outlet 4 on the cork piercer 3. , to keep the pressure in the medicine bottle 23 balanced with the external pressure.

After the sealing head 11 is opened, the medicinal liquid in the medicine bottle 23 enters the bottle stopper piercer 3 through the liquid inlet 5 on the stopper piercer 3, and enters the float chamber 1 from the bottle stopper piercer 3, so that the float chamber 1 The liquid level of the liquid medicine in the float chamber 1 continues to increase, and the liquid level of the liquid medicine in the float chamber 1 increases to the point where the float ball 17 generates buoyancy. The sliding sleeve 15 floats up, so that the plug 18 is opened, and then the sliding sleeve liquid inlet hole 21 and the liquid passing hole 22 are connected, and the liquid medicine in the float chamber 1 enters the storage tank through the sliding sleeve liquid inlet hole 21 and the liquid passing hole 22. liquid chamber 2. The medicinal liquid entering the liquid storage chamber 2 enters the liquid feeding tube 26 through the puncture needle 25 of the liquid feeding tube stopper of the disposable infusion set inserted on the rubber stopper 12, and the medicinal liquid entering the liquid feeding tube 26 passes through the dripping The bucket 27 and the infusion tube 28 enter the intravenous infusion needle 29, discharge the air in the drip hopper 27 and the infusion tube 28 and adjust the flow rate of the medicinal liquid in the intravenous infusion needle 29 through the flow regulator 30, and then pierce the intravenous infusion needle 29 into the needle 29. In the patient's vein, the infusion can be administered.

During the infusion process, the liquid level of the liquid medicine in the medicine bottle 23 gradually decreased, and after the liquid medicine in the medicine bottle 23 was infused, the liquid level of the medicine liquid in the float chamber 1 gradually decreased, and the liquid level of the medicine liquid in the float chamber 1 decreased to After the liquid medicine has no buoyancy on the floating ball 17, the plug 18 seals the sliding sleeve liquid inlet hole 21 and the liquid passing hole 22 under the action of gravity of itself and the counterweight 20, so that the sliding sleeve liquid inlet hole 21 and the liquid passing through hole 22 are sealed. The hole 22 is no longer connected, thereby sealing the liquid storage chamber 2, and the medicinal liquid in the liquid storage chamber 2 no longer enters the liquid inlet pipe 26, thereby automatically stopping the infusion, and preventing air from entering the infusion pipe 28, while maintaining the infusion pipe The liquid level in 28 can prevent bubble embolism from being formed in the infusion tube 28 or the phenomenon of blood returning due to the low liquid level in the infusion tube 28, which can effectively reduce the medical risk caused by the direct use of the disposable infusion set for infusion, and effectively reduce the Labor intensity of medical staff. After the liquid inlet hole 21 of the sliding sleeve and the liquid passing hole 22 are no longer connected, the medicine bottle can be replaced or the intravenous infusion needle 29 can be pulled out.

The plug-in self-stop infusion device has a simple structure, can control the liquid level in the infusion tube through the automatic liquid-stop mechanism, and does not allow air to enter the infusion tube, thereby effectively reducing the medical risks existing in the direct use of the disposable infusion set for infusion , and effectively reduce labor intensity, solve the problem of medical risks and increase labor intensity when infusion directly through a disposable infusion set, especially suitable for use when using a disposable infusion set for infusion.

Claims (7)

1. The utility model provides a just, insert formula automatic stop infusion set, it comprises float chamber (1), stock solution room (2), bottle plug puncture ware (3), mechanism and the automatic mechanism that stops of admitting air, its characterized in that: the floater chamber (1) is an inverted cup-shaped body, and a liquid storage chamber (2) is arranged at the bottom port of the floater chamber (1) in a threaded mode; the top end face of the float chamber (1) is fixedly provided with a bottle stopper puncture outfit (3), the float chamber (1) below the bottle stopper puncture outfit (3) is provided with an air inlet mechanism, an automatic liquid stopping mechanism is arranged in the liquid storage chamber (2) below the bottle stopper puncture outfit (3) through a partition plate (13), and a rubber plug (12) is arranged at the bottom port of the liquid storage chamber (2).

2. The portable automatic stop infusion device of claim 1, wherein: the automatic liquid stopping mechanism is composed of a fixed sliding sleeve (15), a connecting rod (16), a floating ball (17) and a plug (18), the fixed sliding sleeve (15) is a reversed-buckled cup-shaped body, the connecting rod (16) is movably arranged in the center of the end face of the fixed sliding sleeve (15) through a mounting hole (19), one end of the connecting rod (16) extends to the outer side of the fixed sliding sleeve (15), and the floating ball (17) is arranged at the end of the connecting rod (16) extending to the outer side of the fixed sliding sleeve (15) in a threaded mode; a plug (18) is fixedly arranged at the end of the connecting rod (16) in the fixed sliding sleeve (15), and the plug (18) is connected with the inner wall of the fixed sliding sleeve (15) in a sliding and sealing manner.

3. The portable automatic stop infusion device of claim 2, wherein: a counterweight block (20) is arranged on the upper surface of the plug (18); sliding sleeve liquid inlet holes (21) are uniformly distributed on the circumference of the end of the fixed sliding sleeve (15) below the plug (18).

4. The portable automatic stop infusion device of claim 1, wherein: mounting ring grooves (14) are formed in the upper surface of the partition plate (13), liquid passing through holes (22) are formed in the partition plate (13) between the mounting ring grooves (14), and the liquid passing through holes (22) are intermittently communicated with liquid inlet holes (21) of the sliding sleeve; the partition plate (13) is in threaded connection with the fixed sliding sleeve (15) through the mounting ring groove (14).

5. The portable automatic stop infusion device of claim 1, wherein: the air inlet mechanism consists of an assembly block (6), an air filter cap and an air filter membrane (7), wherein an air inlet hole (8) is formed in the assembly block (6), and the air inlet hole (8) is communicated with the float chamber (1); an air filtering cap cover is movably arranged above the air inlet hole (8), and an air filtering membrane (7) is arranged at the bottom of the air inlet hole.

6. The portable automatic stop infusion device of claim 5, wherein: the air filter cap is composed of an assembly plate (9), a connecting reed (10) and a sealing head (11), wherein the sealing head (11) is arranged on the lower surface of the assembly plate (9), and the sealing head (11) is intermittently and hermetically connected with the air inlet hole (8); a connecting reed (10) is arranged on the assembling plate (9) at one side of the sealing head (11); the assembly plate (9) is connected with the assembly block (6) through a connecting reed (10).

7. The portable automatic stop infusion device of claim 1, wherein: the bottle stopper puncture outfit (3) is a conical hollow body, an air outlet (4) is arranged on the circumference of the top end of the bottle stopper puncture outfit (3), and a liquid inlet (5) is arranged on the circumference of the bottle stopper puncture outfit (3) below the air outlet (4).

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