CN104096285A - Disposable float type automatic liquid stop duplex-discharge infusion apparatus - Google Patents

Abstract

The invention discloses a disposable buoy-type automatic liquid-stopping and double-row infusion device, which consists of a liquid inlet interface, a drip funnel, a float valve, an infusion tube, a liquid medicine filter, a drip speed regulator, a liquid outlet interface, a closed guide It is composed of an air mechanism, a gallbladder-like rinse bottle dripper and a reversing pump arranged on the infusion tube. Its advantages are: ① It can automatically stop the liquid, thereby avoiding the trouble, waste and possible occupational infection caused by separating the infusion needle for draining and exhausting the liquid; ② It can drain the precious residual liquid in the infusion bottle and the infusion tube and enter it into the human body , which can not only prevent waste, but also ensure the curative effect; ③ It can intercept and collect the endogenous air bubbles in the infusion tube and discharge them upwards to the float valve and the cavity of the drip funnel; ④ It can avoid the blockage of the liquid path caused by blood return and blood coagulation and possible blood exposure accidents; ⑤It can pressurize and infuse rapidly and avoid accidentally pumping the gas in the infusion tube into the human body. It is a multi-functional infusion set, which is suitable for clinical patients, especially severe patients in mid-winter, to infuse a large amount of infusion for a long time.

Description

Disposable buoy type automatic liquid stop, double row infusion set

technical field

The invention relates to a disposable automatic stop-flow liquid-residue-preventing infusion set for medical use, in particular to a disposable buoy-type automatic stop-liquid and double-row infusion set.

Background technique

On March 12, 2014, the State Intellectual Property Office announced a "disposable automatic stop-flow anti-liquid residue infusion set" (invention patent application number: 201310616062.0; issue number: 2014030600274840), which is a buoy-type automatic stop Anti-liquid residual infusion set. Its defect is: 1. referring to accompanying drawing 15,21,22 of specification sheet, owing to be provided with check valve 92 on the liquid inlet of the pressurized bag 35 of manual pressurized pump 93, in mid-winter season, when icy liquid enters after heating ward , the gas dissolved in the gap between water molecules expands when heated (especially the liquid in the infusion tube heats up faster than the liquid in the infusion bottle) and precipitates to form bubbles attached to the inner wall of the infusion tube (this application is referred to as "endogenous bubbles in the infusion tube" for short) ) is difficult to discharge upwards; when a critically ill patient receives a large amount of infusion, and the air bubbles in the infusion tube accumulate for a long time, the infusion needle must be separated for drainage, exhaust and refilling, which is not only troublesome, but also causes waste, Interface pollution and possible occupational infection, so it is not suitable for drip infusion of critically ill patients in the middle of winter; especially when the impact force of the pressurized rapid infusion increases, the air bubbles may enter the human body, and there is even a risk of excessive extrusion of the pressurized bag. The danger of accidentally pumping the gas in the infusion tube into the human body; in addition, it cannot intercept and collect the endogenous air bubbles from the infusion tube; Air bubbles, and it must alternately open and close its inlet and outlet ports during pressurized rapid infusion and forced in residual liquid, which is troublesome to operate; in addition, there is no check valve on the liquid outlet of the pressurized bag, especially in single wards. The patient slips and falls in the bathroom with drip infusion or faints (such as: hypoglycemia, orthostatic hypotension, cough, urination, pain, syncope caused by mental stimulation, fainting blood, cerebral sudden onset, epilepsy, brain tumor, constipation-induced myocardial infarction, etc. ) without timely detection and timely treatment often lead to blood exposure (refers to blood backflow into the infusion set, infusion bottle) accidents, or when the infusion bottle is broken, blood will leak out, which is quite dangerous!

Contents of the invention

The object of the present invention is designed for the above-mentioned defects of the "disposable automatic flow-stopping anti-liquid residual type infusion set". It can solve the problem of endogenous air bubbles in the infusion tube while solving the residual liquid in the infusion tube. It can automatically stop the liquid, and can also input the residual liquid in the infusion tube into the human body. It can also discharge the endogenous air bubbles in the infusion tube upward to the float valve and the double-row infusion set in the cavity of the drip funnel. The purpose of the present invention is also to avoid pumping the gas in the infusion tube into the human body by mistake (note: the symbol "/" in this application document refers to is "or").

The present invention solves the above-mentioned technical problems by providing a disposable buoy-type automatic liquid-stopping and double-row infusion set. Including the customary liquid inlet interface, drip funnel, float valve (abbreviation for buoy type automatic liquid stop valve), closed air guiding mechanism, infusion tube, liquid medicine filter (including precision medicine liquid filter and other existing technical medicine Liquid filter), drip speed regulator and liquid outlet interface, or include the usual liquid inlet interface, imitation gallbladder type rinse bottle dropper, drip funnel, float valve, infusion tube, drip speed regulator, liquid medicine filter and The liquid outlet interface, or include the usual liquid inlet interface, imitation bile rinse bottle dripper, drip funnel, float valve, closed air guide mechanism, infusion tube, drip speed regulator, liquid medicine filter and liquid outlet interface, The characteristic is: it is composed of a reversing pump arranged on the infusion tube and connected with the infusion tube; The endogenous air bubbles in the infusion tube are discharged upward to the float valve and the manual two-way pump in the drip funnel cavity Set does not include infusion needle. The basis for this is: ①The infusion needle and the infusion set are not only connected flexibly, but also have different models and individually packaged products for nurses to choose; ②In recent years, new technologies such as infusion catheters, needle-free sealing joints, and infusion three-way cocks Rapid development and wide application, even if the infusion set bag is equipped with an infusion needle, it will be discarded; ③ "Chinese Journal of Practical Nursing" (sponsored by the Chinese Medical Association) in September 2006 in the first ten days of the ninth issue of volume 22 A paper titled "Clinical Novel Application of Clifford (Needleless Sealed Connector)" was published on page 54; Journal of Modern Nursing, Vol. 7, No. 11, pp. 62-63, Nov. 2001 Published a paper titled "Application of Needle-Free Infusion System in Pediatric Indwelling Infusion", which indicated that traditional infusion sets do not include infusion needles. However, there are still some infusion set products that are equipped with infusion needles, so this application incorporates them into the liquid outlet interface for description. Special instructions].

Further, the reversing pump can be provided under the lower part (referring to the lower third of the upper section of the infusion tube, which will not be re-released below) of the upper section of the infusion tube (accounting for about one-half of the length of the infusion tube). The nurse manually squeezes the sphere of the pump liquid, the sphere liquid inlet, the tongue-type sphere liquid outlet that can extend into the middle of the inner cavity of the sphere and retract to the original position, and the switches that are respectively arranged on the sphere and below the liquid circuit; When the liquid above the spheroid is equipped with a drip speed regulator, the switch on the liquid above the spheroid can be omitted.

Further, the reversing pump can also be composed of a ball arranged below the lower part of the upper section of the infusion tube for nurses to manually squeeze the pump liquid, a ball liquid inlet, a ball liquid outlet, a swimming core arranged in the ball cavity, and a The check valve on the liquid outlet of the sphere is formed.

Further, the reversing pump can also be composed of a sphere arranged below the lower part of the upper section of the infusion tube for nurses to manually squeeze the pump liquid, a sphere liquid inlet, a swimming core arranged in the sphere cavity, and a core that can extend into the sphere cavity. The middle part and the tongue-type ball liquid outlet retracted to the original position and a check valve arranged on the liquid path below the tongue-type ball liquid outlet are formed.

Compared with the disposable automatic anti-flow liquid infusion set, the present invention has the following advantages: ① It can not only drain the valuable residual liquid in the infusion bottle and the infusion tube and input it into the human body, but also can discharge the endogenous air bubbles in the infusion tube upwards. Discharged into the float valve and drip funnel cavity; ②It can intercept and collect the endogenous air bubbles from the infusion tube; ③It can not only pressurize the rapid infusion to rescue the patient, but also avoid operation accidents (referring to careless/excessive operation) The gas in the infusion tube is pumped into the body. It is a multifunctional infusion device capable of automatic exhaust, automatic liquid stop, closed air elimination, air trapping and air collection, closed infusion, pressurized infusion, prevention of residual liquid, prevention of blood exposure accidents and iatrogenic air embolism. It is suitable for clinical patients, especially critically ill patients in mid-winter, for long-term drip infusion of a large amount of infusion.

Description of drawings

The basic concept of the present invention will be described in detail below in conjunction with six accompanying drawings (three pages in total).

Fig. 1 is the structure of the first embodiment of the present invention [wherein the floating valve 6, the tongue type ball liquid outlet 17 (when extending into the middle part of the inner chamber of the ball 15, it is like the structural form of a disposable syringe empty barrel and piston) are coronal sections , when the controllable purification type air guide port is in the closed state] schematic diagram.

Fig. 2 is the structure of the second embodiment of the present invention [wherein the float valve 23 (when in the open state) and the external controllable bypass type air guide port 24 (when in the open/pre-open state) are both coronal sections, and its direction change The pump 31 is in the vertical position (referring to the state that the liquid inlet of the sphere faces upwards, that is, the posture during pressurized infusion)] schematic diagram.

Fig. 3 is a schematic diagram of the direction-changing pump 31 shown in Fig. 2 when it is in an upside-down state (referring to the attitude of the sphere when the liquid outlet is facing upwards, that is, ready to rush upwards out of the endogenous air bubbles in the infusion tube).

FIG. 4 is a schematic diagram of the reversing pump 31 in the horizontal position (that is, the general posture during the infusion process) as shown in FIG. 2 .

Fig. 5 is the structure of the third embodiment of the present invention [wherein the float valve 40 (for the coronal section) and the built-in controllable bypass type air guide port 42 (for the coronal section and in the closed/closed state) and the reversing pump 47 (in the When the tongue-type sphere liquid outlet 48 of the vertical position state) stretches into the middle part of the inner cavity of the ball] the schematic diagram.

FIG. 6 is a schematic view of the reversing pump 47 shown in FIG. 5 when it is in an upside-down state (referring to the tongue-type ball liquid outlet 48 facing upwards) and the tongue-type ball liquid outlet 48 is retracted to its original position.

Detailed ways

Example 1:

As shown in Figure 1, the conventional liquid inlet interface is composed of a bottle insert connector 1 and a dropper 3 (L-shaped infusion catheter provided with a grafted drug dosing interface). The liquid inlet interface is provided with imitative gallbladder formula rinse bottle dropper 10, and it is made of liquid storage bag 11, capsule tube 9 and the switch 2 (hereinafter referred to as switch) that can open and close the capsule tube. The liquid storage bag 11 is a liquid storage (container) made of a medical flexible material that can not only store liquid but also squeeze the pump liquid manually by a nurse and communicate with the infusion bottle cavity by means of a liquid inlet port. Float valve 6 is positioned at dropping funnel 4 below. The stopper 5 can prevent the buoy (spool) in the float valve cavity from floating up excessively. When squeezing the traditional dripping funnel to fill and exhaust the infusion tube (referring to the infusion preparation work), the liquid column entering the dripping funnel impacts the liquid that entered the dropping funnel first to generate air bubbles, before the air bubbles have time to rise to the liquid surface When it enters the infusion tube lumen along with the liquid in the dropping funnel. Therefore, when filling the infusion tube with liquid, you must first invert the dripping funnel and then squeeze it. After all the air bubbles have floated out, return the dripping funnel to its original posture, and then perform exhaust and liquid filling. And the liquid column that enters in the dropping funnel after squeezing this dropping funnel 4 impacts on the buoy of stopper 5 and float valve, thereby can not produce air bubble in the liquid that first enters in the floating valve chamber, even if there is a little air bubble, wait When the buoy floats, the air bubbles have already floated out (the air bubbles are lighter than the buoy), so when filling the infusion tube with liquid, there is no need to invert the drip funnel to directly squeeze it, which is the so-called fully automatic exhaust. The closed air guide mechanism is set on the side wall of the float valve or on the liquid outlet of the float valve and is equipped with an air purification part (air purification film installed in its cavity) and an opening and closing part (sealing cover 7) for nurses to open and close. The controllable purification type air guide port (for the prior art). Opening the sealing cover 7 at the end of the day's infusion can purify the outside air and lead it into the infusion tube cavity from top to bottom, so that the residual liquid in the upper section of the infusion tube 12 can automatically descend and enter the human body. The infusion tube 12 is provided with a conventional liquid medicine filter 13 (including liquid medicine filters in the prior art such as precision medicine liquid filters). The usual movable cap button joint 18 acts as a liquid outlet. Reversing pump 16 is made of the spheroid 15 that can be arranged on the transfusion tube 12 for the nurse to extrude the pump liquid, spheroid liquid inlet, tongue-type spheroid liquid outlet 17 and be located at respectively on the spheroid 15, the switch 8 on the lower liquid road. At the end of the day’s infusion, first close the liquid path above the sphere 15, and then the nurse squeezes the sphere 15 with one hand to transfer the residual liquid in the infusion tube into the human body. In order to prevent the return of blood, the infusion needle was pulled out to end the day's infusion. On the contrary, when the endogenous air bubbles in the infusion tube increase, the pressure generated by first closing the liquid path below the ball 15 and then pinching the ball 15 can push the endogenous air bubbles in the infusion tube above it upwards to the float valve 6 and drip funnel. 4 chambers. The top of the sphere 15 is provided with a drip speed regulator 14 (for imported gear-adjusting titration regulators, its upper and lower parts can be adjusted as stone-milled relative rotations, and it can be adjusted to the maximum, the minimum, and the closure for one week of screwing. There are similar products). In addition, when the drip speed regulator is provided above the sphere 15, the switch 8 on the liquid circuit above it can be omitted, because the drip speed regulator also has the function of closing the liquid circuit. But when this kind drip speed regulator 14 is positioned at spheroid 15 below liquid roads, preferably keep the switch 8 on the spheroid 15 bottom liquid roads, this is because closing drip speed regulator needs both hands to cooperate, and is not very convenient. If adopt customary wheel clip type drip speed regulator, can cause back blood when its roller (referring to closing drip speed regulator) is driven upwards, if the wheel clip type drip speed regulator is installed on the liquid path below spheroid 15 after being inverted, on There is the danger that air is pressed into the human body when driving its roller downwards (referring to closing the drip speed regulator), so an amount of liquid must be reserved when squeezing the spheroid 15 and forcing into the raffinate, which is difficult to grasp accurately. Therefore think that below the spheroid 15 is most suitable with cut-off switch. When a large amount of infusion is infused for a long time in severe patients in the middle of winter, the reversing pump 16 can be arranged below the upper part of the infusion tube (including the lower part of the upper part), especially the lower part (accounting for about 1/2 of the length of the infusion tube) (referring to the lower part) The lower third, and will not be re-interpreted below). Extending the tongue-type ball liquid outlet 17 into the middle of the inner cavity of the ball body 15 can intercept and collect endogenous air bubbles from the infusion tube 12 . A little gas then ignore it. When inputting the residual liquid, first adjust the reversing pump 16 to the vertical position. At this time, the gas is above the residual liquid. net.

Example 2:

As shown in Figures 2, 3 and 4, the conventional liquid inlet interface consists of a bottle connector 28 provided with a purified air guide port 22 and a dropper equipped with a switch 2 (which includes two arrangements above or below the bladder tube) constitute. The infusion tube is made of a conventional infusion conduit 29 and a short elastic tube 35 . The conventional liquid medicine filter 36 and the nipple-shaped (conical) connector 37 serving as the liquid outlet are located in the infusion tube (because the fittings on the infusion tube and their positions etc. are different, there are differences in the length of each section of the infusion tube, although there is no Specific meaning, but for the convenience of identification and review, so the same legend number is not used) at the end. The infusion tube is provided with a customary drip speed regulator 34. The liquid inlet interface is provided with an imitation gallbladder type rinse bottle dropper, which is made of a liquid storage bag 19, a capsule tube and a switch 8. The liquid storage bag 19 is made of medical flexible material. The switch 8 can prevent the liquid from flushing the infusion bottle chamber from flowing back into the liquid storage bag 19. The float valve 23 is located below the drip funnel 20, and its stopper 21 can prevent the buoy from floating too much. The closed air-guiding mechanism is a kind that is set on the bottom wall of the float valve and can communicate with the liquid outlet 26 of the float valve and is equipped with a switch (equipped with a handle 27 and a cock-type switch with a liquid-guiding hole 25 ) that can be pre-opened by the nurse. , With the closure, the residual liquid in the upper section of the infusion tube can automatically descend and enter the external controllable bypass type air guide port 24 of the human body at the end of the day's infusion. The reversing pump 31 is composed of a ball 32 arranged on the infusion tube for the nurse to manually squeeze the pump liquid, a ball liquid inlet, a ball liquid outlet, a swimming core 30 in the ball cavity, and a check valve 33 on the ball liquid outlet . When it is specially used for a large amount of infusion in severe patients in mid-winter and dripping for a long time, the reversing pump 31 can be arranged below the lower part of the upper section of the infusion tube, especially the lower part of the lower section. At the end of the day's transfusion, the direction-changing pump 31 is adjusted to the vertical position, and then the residual liquid in the infusion set can be completely transfused by pinching and squeezing the spheroid 32. When the residual liquid is completely infused, the falling core automatically closes the liquid outlet of the sphere, which can avoid excessive squeezing of the sphere 32 or accidental pumping of the gas in the infusion tube into the human body due to careless operation. Repeatedly pinching the spheroid 32 can pressurize the rapid infusion to rescue the patient. When dripping in mid-winter season, when the internal air bubbles in the infusion tube increase, first invert the reversing pump 31 so that the swimming core 30 (Note: ① is a float with a specific gravity smaller than water, and it can also be made into a dish or other conventional shapes; 2. hollow, solid, flexible material, hard material all can be adopted; 3. also can regard it as the abbreviation of reversing valve) swim to spheroid liquid outlet place and close it, then the pressure energy that squeezes spheroid 32 to produce quickly will The air bubbles rush out upwards to the float valve 23 and the drip funnel 20 cavities. Compared with Embodiment 1, its advantages are: ① Due to the non-return function of the check valve 33, blood exposure accidents can be effectively prevented even if a patient in a single ward slips in the bathroom or faints and breaks the infusion bottle without being discovered in time; ②When eliminating air or inputting residual liquid, it is only necessary to change the posture of the reversing pump 31; when pressurizing and infusing rapidly, there is no need to alternately open and close the liquid inlet and outlet of the ball, and the operation is very convenient; when the liquid in the ball 32 is empty When the swimming core 30 falls, the liquid outlet of the spheroid is automatically closed, which can avoid accidentally pumping the gas in the infusion tube into the human body by squeezing the spheroid too hard.

Example 3:

As shown in FIGS. 5 and 6 , the conventional liquid inlet interface is composed of a dropper and a bottle insertion connector 28 . The imitation gallbladder formula rinse bottle dropper on the liquid inlet interface is made of liquid storage bag 19, bladder tube and switch 2. The float valve 40 is located below the drip funnel 38 . The infusion tube 49 is provided with a drip speed regulator 34 and a liquid medicine filter 13 . The snap-on fitting 50 serves as the outlet port. The closed air guiding mechanism is set on the bottom wall 43 sleeve pipe 44 of the float valve 40 and the liquid outlet pipe 41 of the float valve, which can be pre-opened and closed by the nurse so that the residual liquid in the upper section of the infusion tube 49 can be automatically closed at the end of the day's infusion. Descend and enter the built-in controllable bypass type air guide port 42 of the human body. The opening method is: the casing 44 and the float valve liquid outlet pipe 41 are respectively provided with overlapping liquid guide holes, and the sleeve pipe 44 can be tightly inserted for the float valve liquid outlet pipe 41 and can be used for the relative rotation of the nurse's hand movement in the horizontal direction. . Relative to the casing 44, the lower part 45 of the float valve outlet pipe 41 is rotated 180° in the horizontal direction (it can also be set at other angles), or after turning the lower part 45 of the float valve outlet pipe to the preset dead point, the built-in The controlled bypass type air guide port 42 is in the open state (referring to the liquid guide holes respectively opened on the casing 44 and the float valve liquid outlet pipe 41 just overlapping and can be in the same state as the bottom of the float valve inner cavity), and its principle is as follows: Plug switch. The reversing pump 47 consists of a sphere arranged on the infusion tube 49, a sphere liquid inlet, a tongue type sphere liquid outlet 48, a swimming core 46 in the sphere cavity and a check valve 33 on the liquid path below the tongue type sphere liquid outlet 48. constitute. When the pressurized rapid infusion is used to rescue the patient, the direction-changing pump 47 is transferred to the vertical position and then the spheroid is repeatedly pinched and squeezed. When being specially provided for a large amount of infusion in severe patients in severe winter season and dripping for a long time, the reversing pump 47 can be set to the lower part of the lower section of the infusion tube. When the endogenous air bubbles in the infusion tube 49 are found to increase, first retract the tongue-type ball liquid outlet 48 to the original position and then reverse the direction-changing pump to make the swimming core 46 swim to the inner mouth of the tongue-type ball liquid outlet 48 and close it. It, and then the pressure generated by the rapid extrusion of the spheroid can push the endogenous air bubbles in the infusion tube 49 upwards into the float valve 40 and the drip funnel 38 cavities. When the tongue-type ball liquid outlet 48 extends into the body cavity, especially the middle of the ball cavity, it can intercept and collect the endogenous air bubbles from the infusion tube. If there is a small amount of gas, then ignore it. When inputting the residual liquid at the end of the day's infusion, first adjust the reversing pump 47 to the vertical position. At this time, the gas is above the liquid, and the swimming core 46 floats on the liquid surface, and then the tongue type ball The liquid outlet 48 is retracted to the original position, and then the residual liquid in the cavity can be completely lost by pinching the spheroid. It is a device that can not only automatically exhaust, automatically stop liquid, block and collect gas, close-type gas elimination, closed-type infusion, pressurized infusion, prevent residual liquid, but also prevent blood return, prevent blood exposure accidents, and prevent gas from being pumped into the pump by mistake. A multifunctional infusion set for the human body. It is convenient for nurses and can ensure curative effect, and is especially suitable for drip infusion for patients in mid-winter season.

The drawings of the above embodiments are schematic diagrams, and the described technical features are examples realized according to the basic concept of the present invention, and do not limit the materials and structural forms used in the present invention. It is not difficult to understand that some technical features in the above-mentioned embodiments can be omitted, shifted, interchanged or disassembled and reorganized, and can also be replaced by other parts with the same function, just like changing the radical of a Chinese character to form other Chinese characters, it can be completely decomposed reorganization. The liquid inlet interface, drip funnel, float valve, liquid medicine filter, drip speed regulator, imitation gallbladder type rinsing bottle dripper, closed air guide mechanism... etc. shown in the above-mentioned embodiments just show the customary liquid inlet interface , drip funnel, float valve, liquid medicine filter, drip speed regulator, imitation gallbladder-type rinsing bottle dripper, closed air guiding mechanism... and other necessary components can be used, not fixed in those styles in the attached drawings; As shown in Figures 1, 2, and 5, their liquid inlet interfaces, drip speed regulators, or direction-changing pumps can be exchanged or deformed (such as spherical tubes, spherical spheres, etc.), and the imitation bile-type rinsing bottle can also be replaced. Dropper or closed air guide mechanism is omitted or deformed; at present, there are hundreds of disposable infusion set manufacturers in China, and their products have their own characteristics. Both are available; and so on, these are all available. Therefore it should be pointed out that even for those of ordinary skill in the art, after contacting the present invention, one can draw inferences about other cases from one instance, and then use the basic idea of the present invention to make some improvements and modifications, which undoubtedly all fall within the protection scope of the present invention Inside. Another problem that needs to be explained is that in order to prevent more residual liquid from being generated, the relevant manufacturers have installed the float valve below the drip funnel, and deliberately set the float valve To the top of the dropping funnel, this certainly also falls within the protection scope of the present invention.

Claims (4)

1. A disposable buoy-type automatic liquid-stopping, double-row infusion set, including a liquid inlet interface, a drip funnel, a float valve, a closed air guide mechanism, an infusion tube, a liquid medicine filter, a drip speed regulator, and a liquid outlet interface , or include liquid inlet interface, imitation gallbladder type rinse bottle dropper, drip funnel, float valve, infusion tube, drip speed regulator, liquid medicine filter and liquid outlet interface, or include liquid inlet interface, imitation gallbladder type rinse bottle A drop injector, a drop funnel, a float valve, a closed air guiding mechanism, an infusion tube, a drop speed regulator, a liquid medicine filter and a liquid outlet interface, and is characterized in that it is provided on the infusion tube and connected with the infusion tube. Composed of a reversing pump; the reversing pump is a type that can not only discharge the residual liquid in the infusion tube down and enter the human body, but also discharge the endogenous air bubbles in the infusion tube above it to the float valve and the cavity of the drip funnel. manual two-way pump. 2. The disposable buoy-type automatic liquid-stopping and double-row infusion set according to claim 1, characterized in that: the reversing pump consists of a sphere arranged below the upper part of the infusion tube for nurses to manually squeeze the pump liquid , the liquid inlet of the sphere, the tongue-type sphere liquid outlet that can extend into the middle of the inner cavity of the sphere and retract to the original position, and the switches respectively arranged on the liquid path above and below the sphere; when the liquid path above the sphere is equipped with When there is a drip speed regulator, then the switch on the liquid circuit above the spheroid can be omitted. 3. The disposable buoy-type automatic liquid-stopping and double-row infusion set according to claim 1, characterized in that: the reversing pump consists of a sphere arranged below the upper part of the infusion tube for nurses to manually squeeze the pump liquid , a sphere liquid inlet, a sphere liquid outlet, a swimming core arranged in the sphere cavity, and a check valve arranged on the sphere liquid outlet. 4. The disposable buoy-type automatic liquid-stopping and double-row infusion set according to claim 1, characterized in that: the reversing pump consists of a sphere arranged below the lower part of the upper section of the infusion tube for nurses to manually squeeze the pump liquid , the liquid inlet of the sphere, the swimming core arranged in the cavity of the sphere, the tongue-type sphere liquid outlet that can extend into the middle of the inner cavity of the sphere and retract to the original position, and the liquid path located under the tongue-type sphere liquid outlet Consists of a check valve.