CN202179740U - Disposable self-exhausting transfusion system - Google Patents

Abstract

The utility model discloses a disposable self-exhausting transfusion system, which comprises a bottle plug puncture device protective sleeve, a puncture device, an upper hose, a dropper, a droplet bucket, a lower hose, a flow regulator, a soup filter and a venous transfusion needle. The bottle plug puncture device protective sleeve is sleeved onto the bottle plug puncture device. The puncture device, the upper hose, the dropper, the droplet bucket, the lower hose and the soup filter are sequentially connected with each other. A latex cap is sleeved on the medicine adding port of the dropper. The flow regulator is sleeved onto the lower hose. The needle stand of the venous transfusion needle is sleeved onto the conical head of the soup filter. The bottom of the droplet bucket is equipped with a self-exhausting apparatus. The self-exhausting apparatus comprises a pedestal arranged at the bottom of the droplet bucket. The pedestal of the self-exhausting apparatus is equipped with an air exhausting opening. The air exhausting opening is sequentially equipped with an air exhausting opening filter membrane and an exhausting pressure plunger arranged outside the droplet bucket. The air exhausting opening is also equipped with an exhausting channel communicated with the air exhausting opening and arranged inside the droplet bucket. The exhausting channel extends to the upper part of the interior of the droplet bucket. The pedestal of the self-exhausting apparatus is also equipped with a liquid outlet channel. The lower hose is connected with the lower part of the liquid outlet channel. The droplet bucket and the lower hose are communicated with each other through the liquid outlet channel.

Description

Disposable self-venting infusion set

technical field

The utility model belongs to disposable medical equipment, in particular to a disposable transfusion device capable of self-exhausting function.

Background technique

Disposable infusion sets used clinically in clinical units of various domestic medical institutions are mainly composed of bottle stopper puncturer protective cover, bottle stopper puncturer, air filter, infusion hose, dropper, dropper, flow regulator, liquid medicine filter It is composed of a device and an venous infusion needle. The traditional use method is: some need to get rid of the air in the infusion tube before performing venipuncture on the patient. There are usually two manual methods: one is to insert the cork piercer into the upside-down infusion bottle stopper, make the dropper discharge the air in the dripping funnel above the lower liquid outlet, and let the dripping funnel be filled after half of the dripping funnel is filled. A large number of air bubbles can be avoided by being vertical; another method is to close the flow regulator, squeeze the drop funnel to suck the liquid to about 1/2 to 2/3 of the drop funnel, and then slowly open the flow regulator. Avoid generating large amounts of air bubbles. But these two kinds of methods all will expend a lot of time of medical staff, as slightly improper during operation, medical staff then will discharge a certain amount of medicinal liquid to get rid of air bubbles, cause inconvenience to medical staff like this. the

Utility model content

The purpose of the utility model is to provide a disposable self-venting infusion set to solve the technical problem that the existing infusion sets cannot be automatically exhausted.

In order to achieve the above object, the utility model adopts the following technical solutions:

A disposable self-venting infusion set, including bottle stopper piercer protective cover, puncture device, upper hose, dropper, drip funnel, lower hose, flow regulator, liquid medicine filter and intravenous infusion needle, bottle The protective sleeve of the stopper piercer is set on the bottle stopper piercer of the piercing device, the piercing device, the upper hose, the dropper, the drip funnel, the lower hose, and the liquid medicine filter are connected in sequence, and the latex cap is sleeved on the medicine feeding port of the dropper , the flow regulator is set on the lower hose, the needle seat of the intravenous infusion needle is sleeved on the cone of the liquid medicine filter, and a self-exhausting device is installed at the bottom of the dripping funnel. The self-exhausting device includes a The self-exhausting device base is provided with an exhaust port on the self-exhausting base, and the air filter membrane of the exhaust port and the exhaust plug pressure are arranged on the exhaust port outside the drip funnel in turn, and the exhaust port in the drip funnel is also provided with There is an exhaust channel connected with it, and the exhaust channel extends to the upper part of the dripping funnel. There is also a liquid outlet channel on the base of the exhaust device. The lower hose is connected to the lower part of the liquid outlet channel, and the dripping funnel and the lower hose pass through The outlet channel is connected.

The above disposable self-venting infusion set, the top of the liquid outlet channel is closed, and the channel wall of the liquid outlet channel in the dripping funnel is vertically provided with holes, and the dripping funnel and the lower hose pass through the liquid outlet channel. The holes and slots of the self-exhaust device are connected with each other, and the self-exhaust device and the liquid outlet channel are both deviated from the center position of the base of the self-exhaust device.

In the above-mentioned disposable self-venting infusion set, the holes are any one of 1, 2, 3 or 4 holes evenly distributed on the wall of the outlet channel.

In the above-mentioned disposable self-venting infusion set, the exhaust channel is fixed on the exhaust port of the self-venting base, or the exhaust channel and the self-venting base are integrally injection molded.

In the above-mentioned disposable self-venting infusion set, the exhaust plug is provided with an inner plug, and the air filter membrane at the exhaust port is heat-sealed on the exhaust port through a high-frequency heat-sealing process, or the air filter film at the exhaust port is squeezed by the exhaust plug. Pressed on the exhaust port, the air filter membrane of the exhaust port is a hydrophobic material filter membrane.

In the above-mentioned disposable self-venting infusion set, a liquid storage device is provided on the upper hose between the cork piercer and the dripping funnel. The mouth and the liquid storage dosing port, the liquid storage dosing port is provided with a latex cap, the top and bottom of the liquid storage device are connected with the hose, and the upper hose on the upper part of the liquid storage device is provided with a clip.

For the above-mentioned disposable self-venting infusion set, the liquid medicine filter is an ordinary liquid medicine filter or a precision medicine liquid filter or a precise air-venting liquid medicine filter.

For the above-mentioned disposable self-venting infusion set, the upper hose, dropping funnel, lower hose and thin hose of the intravenous infusion needle are formed by single-layer or double-layer co-extrusion, and the liquid medicine filter adopts single-layer Or double-layer injection molding, the outer layer of the upper hose, the drip funnel, the lower hose, the thin hose of the intravenous infusion needle and the liquid medicine filter of the double-layer co-extrusion are all colored light-proof materials.

In the above-mentioned disposable self-venting infusion set, the puncture device includes a bottle stopper piercer, an air filter membrane and an air plug, and the air plug presses the air filter membrane tightly into the air inlet of the bottle stopper piercer, or the air filter membrane passes through The high-frequency heat-sealing process is heat-sealed on the air inlet of the cork piercer. The cork piercer can be made of plastic steel needles or all plastic. The air plug is provided with an inner plug, and the air filter membrane is hydrophobic. Sexual material filter membrane.

In the above-mentioned disposable self-venting infusion set, the puncture device includes a cork puncturer, an exhaust hose and an air filter, the air filter communicates with the air intake pipe in the cork puncturer through the exhaust hose, and the puncture of the cork The piercer can be a plastic steel piercer or a plastic piercer. The exhaust hose is formed by single-layer or double-layer co-extrusion. The outer layer of the exhaust hose formed by double-layer co-extrusion is a light-shielding material containing color.

By adopting the above technical scheme, the utility model has the following advantages: Compared with the disposable infusion set commonly used clinically, the utility model is connected with a self-exhaust device at the lower part of the drip funnel, and the self-exhaust device is composed of an air plug, an air filter Composed of membrane and exhaust channel, before inserting the cork piercer into the large infusion bottle stopper, open the cork piercer and the inner plug of the air plug on the self-venting device, and close the flow regulator, after inserting the infusion bottle, due to the cork The air inlet and the self-exhaust device on the puncturer communicate with the atmosphere, and the hydraulic pressure difference in the infusion bottle makes the medicine in the infusion bottle flow into the dripping funnel quickly and automatically. As the liquid level rises, the medicine will The air in the dropping funnel is taken in from the exhaust port on the top of the exhaust channel, and is discharged through the exhaust channel, the air filter membrane of the exhaust port and the air plug. From the exhaust channel to the air filter membrane, because the air filter membrane has the function of preventing water from flowing out and can withstand a certain pressure, the liquid level will no longer rise and stay on the top of the air inlet of the exhaust channel, which is greater than 1/ of the length of the drip funnel 2 places; it only takes 3-5 seconds for the medicine liquid to flow into the dripping funnel. After opening the flow regulator, the bubble-free medicinal liquid temporarily stored in the dripping funnel can quickly enter the lower hose from the hole groove, and the medical staff do not need to infuse the liquid. Exhaust through the device, which shortens the original exhaust time, facilitates the operation of medical staff, saves waiting time, and increases work efficiency.

Description of drawings

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

Fig. 2 is the second structural representation of the utility model cork piercer;

Fig. 3 is the third structural representation of the utility model cork piercer;

Fig. 4 is the second structural representation of the utility model self-exhaust device;

Fig. 5 is the second structure schematic diagram of the utility model;

Fig. 6 is a schematic diagram of the third structure of the utility model;

Fig. 7 is a schematic diagram of the fourth structure of the utility model.

Detailed ways

Below in conjunction with embodiment and with reference to accompanying drawing, the utility model is described in further detail.

A disposable self-venting infusion set as shown in Figure 1, Figure 2, Figure 3, Figure 4, Figure 5, Figure 6 and Figure 7, including a bottle stopper piercer protective cover 1, a piercing device, and an upper hose 5. Filling tube with latex cap 7, dropper 6, dropper 8, lower hose 12, flow regulator 13, liquid medicine filter 14, intravenous infusion needle 15, bottle stopper puncturer protective cover 1 set for puncture On the cork puncturer 2 of the device, the puncture device, the upper flexible pipe 5, the dropper 6, the drip funnel 8, the lower flexible pipe 12, and the liquid medicine filter 14 are connected successively, and the medicine feeding tube 7 is arranged on the dropper and connected with the dropper. The pipe 6 is connected, the flow regulator 13 is set on the lower hose 12, the needle seat of the intravenous infusion needle 15 is sleeved on the cone head of the liquid medicine filter 14, and a self-exhausting device 9 is arranged at the bottom of the dripping funnel 8, which is self-exhausting. Air device 9 comprises the self-exhaust device base 21 that is arranged on the bottom of the dropping funnel, and the self-exhausting base 21 is provided with an exhaust port 9b, and an exhaust port air filter membrane 10 is provided on the exhaust port 9b outside the dropping funnel, Exhaust port air filter film 10 is pressed on the exhaust port 9b by exhaust plug 11, is also provided with the exhaust channel 9a that communicates with it on the exhaust port in the dropping funnel, and exhaust channel 9a stretches in the dropping funnel The upper part of the exhaust device base 21 is also provided with a liquid outlet channel 9f, the top 9c of the liquid outlet channel is closed, and a hole 9d is vertically arranged on the channel wall of the liquid outlet channel 9f in the dropping funnel, the hole groove 9d is 1, 2, 3 or 4 evenly distributed on the wall of the outlet channel, the lower hose 12 is connected to the lower part (9e) of the outlet channel 9f, and the dropping funnel 8 and the lower hose 12 pass through the outlet channel The hole 9d on 9f communicates, and the self-exhausting device and the liquid outlet channel are both deviated from the center position of the base of the self-exhausting device.

The exhaust channel 9a of the utility model is fixed on the exhaust port 9b of the self-exhaust base, and the exhaust channel 9a can also be integrally injection-molded with the self-exhaust base 21 .

The exhaust plug 11 of the present utility model is provided with an inner plug 11a, and the air filter membrane 10 of the exhaust port can also be heat-sealed on the exhaust port 9b through a high-frequency heat-sealing process, and is in an unplugged state before use. During use, When the infusion rate is greater than 50ml/min, the flip inner plug 11a on the vent plug 11 should be tightly plugged to prevent air from entering from the air plug. The exhaust air filter membrane 10 is a hydrophobic material filter membrane.

The dripping funnel 8 of the present utility model can be an injection molded part or a blow molding part, the dripping funnel 8 and the dripping tube 6 can be injection molded together, and the dripping funnel 8 and the dripping tube 6 can also be injected separately and then bonded together .

The exhaust channel 8a of the self-exhaust device 9 of the present utility model can be made of plastic or stainless steel. The exhaust channel 9a of stainless steel is combined with the base of the self-exhaust device 9. The channel 9a can also be integrally injection-molded with the base of the self-exhausting device 9 made of plastic, and the plastic material can be PVC, ABS, PC or opaque medical polymer materials. the

As shown in Figure 6, the utility model can also be provided with a liquid storage device 19 on the upper flexible pipe 5 between the cork piercer 2 and the drip funnel 8, the liquid storage device is a bag body or a bottle, and the liquid storage device The upper part is provided with a liquid storage exhaust port 20 and a liquid storage dosing port, the liquid storage dosing port is provided with a latex cap 22, the top and the bottom of the liquid storage device are connected with the hose, and the upper hose at the top of the liquid storage device is provided with a Clip 18, the clip is clamped on the upper flexible pipe, plays a switch effect, is used to control the dripping and stopping of medicinal liquid, and the clip can also be replaced by a regulator.

The medicinal liquid filter 14 of the present utility model can adopt common type medicinal liquid filter, as shown in Fig. 1, Fig. 5, Fig. 6 and Fig. 7; Also can adopt exhaust precision type medicinal liquid filter, as Fig. 5 Shown; precision liquid filter can also be used.

The upper hose 5, the drip funnel 8, the lower hose 12 and the thin hose of the intravenous infusion needle 15 of the utility model can be formed by single-layer or double-layer co-extrusion processing, and the liquid medicine filter can be formed by single-layer It can also be formed by double-layer injection molding, and the dripping funnel 8 can also be formed by single-layer or double-layer injection molding or blow molding. Material.

As shown in Fig. 1 and Fig. 2, described piercing device comprises cork piercer 2, air filter membrane 3 and air plug 4 or 4-1, and air plug 4 or 4-1 presses air filter membrane 3 tightly on the bottle In or on the air inlet of the cork piercer 2, the air filter membrane 4 can also be heat-sealed on the air inlet of the cork piercer 2 through a high-frequency heat-sealing process, and the cork piercer can be a plastic steel needle or an all-plastic one , the air plug 4 may be provided with an inner plug 4a, and the air filter membrane 3 is a hydrophobic material filter membrane.

As shown in Fig. 3, described puncture device comprises cork piercer 2, exhaust hose 16, air filter 17, and air filter 17 communicates with the intake pipe in bottle cork piercer 2 through exhaust hose 16 , The cork piercer 2 can be a plastic piercer, and the exhaust hose 16 can adopt a single layer, or can adopt double-layer co-extrusion processing to form, and its outer layer is to contain colored light-shielding material when adopting double-layer.

As shown in Figure 1 and Figure 5, the cork piercer 2 is a plastic steel piercer, which is composed of a liquid outlet base 2c, a liquid inlet cap 2b and an air inlet needle tube 2a, and the air inlet needle tube 2a is inserted into the air inlet end port on the liquid outlet base 2c And bonding, the liquid inlet cap 2b is inserted from the top of the air inlet needle and then glued on the liquid outlet base 2c, and the liquid outlet base 2c is connected with the upper hose 5.

As shown in FIG. 4 , the liquid outlet of the self-exhaust base of the self-exhaust device 9 of the present invention can also be a flat bottom, and the lower part is sleeved with the lower hose 12 .

As shown in Figure 7, the dropper 6 of the present utility model can also have no medicine feeding port;

The embodiments described above are only preferred implementations of the present utility model. It should be pointed out that those skilled in the art can make some modifications and improvements without departing from the principle of the utility model, which should also be regarded as belonging to the protection scope of the utility model.

Claims (10)

1. A disposable self-venting infusion set, including a cork piercer protective cover (1), a piercing device, an upper hose (5), a dropper (6), a dropper (8), a lower hose ( 12), the flow regulator (13), the liquid medicine filter (14) and the intravenous infusion needle (15), the bottle stopper piercer protective cover (1) is set on the bottle stopper piercer (2) of the puncture device, and the puncture device , the upper hose (5), the dropper (6), the dropper (8), the lower hose (12), and the liquid medicine filter (14) are connected in sequence, and the flow regulator (13) is set on the lower hose (12 ), the needle seat of the intravenous infusion needle (15) is socketed on the conical head of the liquid medicine filter (14), which is characterized in that a self-exhausting device (9) is arranged at the bottom of the dripping funnel (8), and the self-exhausting The device (9) includes a self-exhaust device base (21) arranged at the bottom of the drip funnel, and the self-exhaust base (21) is provided with an exhaust port (9b), and the exhaust port (9b) outside the drip funnel is sequentially An air filter membrane (10) and an exhaust plug (11) are provided at the exhaust port, and an exhaust channel (9a) communicating with it is provided on the exhaust port in the dropping funnel, and the exhaust channel (9a) extends to the dropping funnel In the upper part, there is also a liquid outlet channel (9f) on the exhaust device base (21), the lower hose (12) is connected to the lower part (9e) of the liquid outlet channel (9f), the dripping funnel (8) and the lower soft The pipe (12) communicates through the liquid outlet channel (9f). 2. The disposable self-venting infusion set according to claim 1, characterized in that: the top end (9c) of the liquid outlet channel is closed, on the channel wall of the liquid outlet channel (9f) in the dropping funnel A hole (9d) is vertically arranged, and the drip funnel (8) communicates with the lower hose (12) through the hole (9d) on the liquid outlet channel (9f). 3. The disposable self-venting infusion set according to claim 1, characterized in that: the holes (9d) are 1, 2, 3 or 4 holes evenly distributed on the wall of the outlet channel any of the. 4. The disposable self-venting infusion set according to claim 1, characterized in that: the exhaust channel (9a) is fixed on the exhaust port (9b) of the self-venting base, or the exhaust channel ( 9a) Injection molded together with the self-venting base. 5. The disposable self-venting infusion set according to claim 1, characterized in that: the exhaust plug (11) is provided with an inner plug (11a), and the air filter membrane (10) at the exhaust port passes through the high-frequency The heat sealing process is heat-sealed on the exhaust port (9b), or the air filter membrane (10) of the exhaust port is squeezed on the exhaust port (9b) by the exhaust plug, and the air filter film (10) of the exhaust port is hydrophobic Sexual material filter membrane. 6. The disposable self-venting infusion set according to claim 1, characterized in that a liquid storage device ( 19), the liquid storage device is a bag body or a bottle body, and a liquid storage vent (20) and a liquid storage dosing port are arranged on the upper part of the liquid storage device, and a latex cap (7) is arranged on the liquid storage dosing port, and the liquid storage device The top and the bottom of the tank are connected with the flexible tube, and the upper flexible tube on the upper part of the liquid storage device is provided with a clip (18). 7. The disposable self-venting infusion set according to claim 1, characterized in that: the liquid medicine filter (14) adopts a common type liquid medicine filter or a precision type liquid medicine filter or a precise exhaust air filter. type liquid filter. 8. The disposable self-venting infusion set according to claim 1, characterized in that: the upper hose (5), drip funnel (8), lower hose (12) and intravenous infusion needle (15 ) thin hose is formed by single-layer or double-layer co-extrusion processing, the liquid medicine filter is formed by single-layer or double-layer injection molding, and the double-layer co-extruded upper hose, dropping funnel, lower hose, vein The thin hose of the infusion needle and the outer layer of the liquid medicine filter are all colored light-shielding materials. 9. The disposable self-venting infusion set according to any one of claims 1-8, characterized in that: the piercing device includes a bottle stopper piercer (2), an air filter membrane (3) and an air plug (4), the air plug (4) tightly presses the air filter membrane (3) into the air inlet of the cork piercer (2), or the air filter membrane (3) is heat-sealed to the cork piercer ( 2) on the air inlet, the cork piercer (2) can be made of plastic steel needles or all plastic, the air plug (4) is provided with an inner plug (4a), and the air filter membrane ( 3) It is a hydrophobic material filter membrane. 10. The disposable self-venting infusion set according to any one of claims 1-8, characterized in that: the piercing device includes a cork piercer (2), an exhaust hose (16) and an air filter (17), the air filter (17) communicates with the intake pipe in the cork piercer (2) through the exhaust hose (16), the cork piercer (2) can be a plastic steel piercer or a plastic piercer, The exhaust hose (16) is formed by single-layer or double-layer co-extrusion, and the outer layer of the exhaust hose formed by double-layer co-extrusion is a light-shielding material containing color.

Images