CN110507874A - A multi-functional infusion device with double exhaust and multi-layer precision filtration and liquid stopper - Google Patents

Abstract

The invention discloses a multi-functional infusion set with double exhaust and multi-layer precision filtration to stop fluid, which comprises an infusion pipeline, a puncture device, a double exhaust drip funnel, a flow rate regulator, a Luer connector, and an infusion needle, and a double exhaust The dripping funnel is composed of an upper dripping funnel and a lower dripping funnel. There is an anti-bubble convex tube in the middle of the bottom of the lower dripping funnel that protrudes upwards. The top of the dripping funnel is also provided with a conical automatic liquid stop float with a cavity inside. The drip funnel exhaust pipe provided by the present invention can ensure that the liquid level of the drip funnel is within the control range, preventing the liquid level in the drip funnel from being too high and the problem of infusion too fast; It changes color when exposed to water, and gives medical staff enough reminders to exhaust before infusion, greatly reducing the waste of liquid medicine.

Description

A multi-functional infusion device with double exhaust and multi-layer precision filtration and liquid stopper

technical field

The invention relates to an infusion set, in particular to a multi-functional infusion set with double exhaust, multi-layer precision filter and stop liquid.

Background technique

At present, there are many kinds of infusion sets on the market. When people use the infusion set for infusion, the medical staff will first ventilate the infusion set. The exhaust process needs to waste a part of the liquid medicine. Since there is no obvious mark for the medical staff to ventilate The reminder of completion often requires medical staff to waste a lot of liquid medicine to know that the exhaust is complete. In addition, during the infusion, if the liquid level in the dripping funnel of the infusion set is too high, the infusion speed will be fast and the discharge If the air is not smooth, it may cause air bubbles to enter the human body. In addition, when the medicinal liquid in the infusion bottle is to be lost, it is necessary to pull out the infusion needle from the human body. Some infusion sets can automatically stop the infusion, but long-term clinical practice has proved that just stopping the infusion cannot completely eliminate the phenomenon of "blood return".

In addition, some traditional Chinese medicine injections, fat emulsion injections, biological agents, etc. are prone to produce insoluble particles when they are compatible, and there are many impurities inside. The infusion sets on the market cannot filter these particles. human health. Moreover, the insoluble particles after the traditional Chinese medicine injection is compatible with the liquid will block the precision filter type infusion set, resulting in difficulty in lowering the liquid.

Contents of the invention

In order to solve the above-mentioned deficiencies in the prior art, the present invention proposes a multi-functional infusion set with double exhaust and multi-layer precision filtration to stop liquid.

In order to solve the above technical problems, the present invention adopts the following technical solutions: a multi-functional liquid infusion device with double exhaust and multi-layer precision filtration and liquid stopper, including an infusion pipeline, a puncture device, a double exhaust drip funnel, a flow rate regulator, a luer Joint, and infusion needle, the double exhaust dripping funnel is composed of an upper dripping funnel and a lower dripping funnel, the anti-bubble convex tube in the middle of the bottom of the lower dripping funnel and raised upwards, the side of the anti-bubble convex tube There are a plurality of vertically arranged drain holes, and the upper part of the lower dripping funnel is also provided with a conical automatic liquid stop float with a cavity inside. The automatic liquid stop float is provided with the middle of the bottom and faces The upper raised cavity is used to accommodate the anti-bubble convex tube, and the side wall of the automatic liquid stop float has a plurality of lower water teeth, and a layer of coarse filter membrane is also arranged on the upper end of the automatic liquid stop float.

Preferably, the inside of the dropping funnel is provided with a double exhaust liquid stop and anti-bubble device, and the double exhaust stop liquid and anti-bubble device includes a double exhaust joint seat arranged on the upper end of the upper drop funnel and connected to the infusion tube, a vertical The liquid inlet dripping pipe arranged inside the double exhaust joint seat, and the L-shaped dripping funnel exhaust pipe arranged inside the double exhaust joint seat, the dripping funnel exhaust pipe is installed upside down and the dripping funnel exhaust pipe The lower port of the lower port is inserted into the double exhaust drip funnel to a certain depth, and the upper port of the exhaust pipe of the drip funnel is provided with an exhaust intake valve, and the inside of the exhaust intake valve is provided with a stop on the entire valve port. Breathable and waterproof membrane, and the port of the exhaust and intake valve is equipped with a valve cover.

The infusion needle is covered with a needle cover, and a self-exhaust filter color-changing tampon that changes color when exposed to liquid is provided at the mouth of the needle cover.

The automatic liquid stop float is surrounded by water teeth, the float rises when the liquid level rises, and the float descends when the liquid level falls. The floater coarse filter membrane is mainly used for primary filtration of Chinese patent medicine for injection, paclitaxel injection, calf serum injection and other solvents that are easy to clog Preliminary filtration of drugs, so that the precision filter membrane is insoluble and easy to block, making the infusion safer and smoother.

The automatic liquid stop float is a columnar structure with an internal cavity, and water teeth are designed around it, and the middle of the automatic liquid stop float is designed as an automatic liquid stop float

The design points of the present invention have five points:

First, it effectively solves the problem that precision filter infusion sets and infusion lines are prone to produce insoluble particles when infusing traditional Chinese medicine injections, fat emulsion injections, biological preparations, etc., will be blocked by insoluble particles of such injections, resulting in failure of normal infusion The problem. The coarse filter membrane installed in the precision membrane liquid-stopping and anti-bubble device of the present invention can first filter the insoluble particles with larger particles in the liquid medicine, preventing such insoluble particles from entering the precision membrane liquid-stopping and anti-bubble device and falling to the next step. Layer on the liquid-stop precision filter membrane to prevent the precision filter membrane from being clogged by insoluble particles.

Second, the membrane of the liquid-stop precision filter membrane is hydrophilic, and there are many micropores distributed on the surface of the membrane. When the precision filter membrane contacts the dripping liquid, the micropores open, and the dripping liquid passes through the automatic liquid-stopping layer for infusion; precision The filter membrane breaks away from the dripping liquid, the micropores are closed, the passage of air is isolated, the cavity in the valve body forms a negative pressure, and the infusion is terminated. Therefore, after the infusion is completed, the present invention can automatically stop the liquid and prevent the phenomenon of blood returning from the infusion.

Third, the side of the automatic liquid stop float and the anti-bubble convex tube of the present invention is provided with a liquid discharge hole, such a way of liquid discharge on the side effectively prevents the generation of infusion bubbles, prevents the bubbles from entering the infusion tube, and ensures the safety of infusion , to reduce the exhaust workload of medical staff during infusion, especially when refilling the infusion bottle, there is no need to perform secondary exhaust work, and the bottle can be directly inserted for infusion.

Fourth, when the liquid inlet dripping funnel inside the double exhaust joint seat used in the present invention enters the liquid, the liquid level inside the drip funnel rises. If the liquid level rises too fast, the liquid level will directly submerge the inside of the double exhaust joint seat The L-shaped drip funnel exhaust pipe, after the drip funnel exhaust pipe is blocked, it cannot continue to exhaust, and then the liquid level in the drip funnel cannot continue to rise, and then the liquid level of the drip funnel can be controlled. After the exhaust pipe of the dripping funnel is submerged, it can instantly become an air intake pipe to supply air to the inner cavity of the dripping funnel, and then let the medicinal liquid in the dripping funnel continue to flow down to complete the infusion.

Fifth, a self-venting filter color-changing tampon is set on the needle sleeve of the infusion needle. The self-venting filter color-changing tampon has the characteristics of being able to exhaust air and change color when it meets water, so the exhaust gas of the medical staff when giving the patient infusion During the operation, when the liquid medicine is discharged from the position of the infusion needle, it immediately touches the self-venting filter color-changing tampon, and the self-venting filter color-changing tampon changes color quickly, reminding the medical staff to do a good job of exhausting, which greatly saves It is necessary for medical staff to waste a large amount of liquid medicine to know the end of the exhaust when the infusion is exhausted, especially the waste of some expensive liquid medicines, which brings great economic losses to patients. There are also many self-ventilating Filter color changing tampons are available in a wide range of uses.

Compared with the prior art, the exhaust pipe of the dripping funnel provided by the present invention can ensure that the liquid level of the dripping funnel is within the control range, preventing the liquid level in the dripping funnel from being too high and the problem of infusion being too fast; self-exhaust filter discoloration The tampon can be ventilated and changes color when exposed to water, giving medical staff sufficient reminders to ventilate before infusion, greatly reducing the waste of liquid medicine.

Moreover, the present invention can also prevent the medicinal liquid in the dropping funnel from directly entering the infusion tube, preventing the generation of air bubbles, and ingeniously combines the function of the liquid-stopping precision filter membrane to close the micropores when the infusion is about to end, so as to automatically stop the infusion, It prevents the occurrence of "blood back" phenomenon. At the same time, the side liquid inlet and drainage holes are used to prevent air bubble infusion. The whole structure is easy to realize and has strong practicability, which is worthy of large-scale promotion.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the structural representation of dropping funnel of the present invention;

Fig. 3 is a top view of the automatic liquid stop float of the present invention.

Detailed ways

The invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

As shown in Figures 1 and 2, the double-exhaust multi-layer precision filter liquid-stop multifunctional infusion set proposed by the present invention includes an infusion pipeline 1, a puncture device 2, a double-exhaust drip funnel 3, a flow rate regulator 4, a Er joint 5, and infusion needle 6, the double exhaust dripping funnel is made up of upper dripping funnel 31 and lower dripping funnel 32, the anti-bubble convex tube 33 that protrudes upwards in the middle of the bottom of the lower dripping funnel 32, the side of the anti-bubble convex tube A plurality of vertically arranged drain holes 34 are provided, and the upper part of the lower dripping funnel 32 is also provided with a conical automatic liquid stop float 35 with a cavity inside. And upwardly protruding is used to accommodate the accommodation cavity of the anti-bubble convex tube, and the side wall of the automatic liquid stop float has a plurality of lower water teeth 36, and a layer of coarse filter membrane 37 is also arranged on the upper end top of the automatic liquid stop float.

The inside of the dripping funnel 3 is provided with a double-exhaust liquid-stopping and anti-bubble device, and the double-exhaust liquid-stopping and anti-bubble device includes a double exhaust joint seat 9 arranged on the upper end of the upper dripping funnel 31 and connected to the infusion tube, vertically arranged on the double row The liquid inlet dripping funnel pipe 10 inside the air joint seat 9 and the L-shaped dripping funnel exhaust pipe 11 that is arranged on the inside of the double exhaust joint seat 9, the dripping funnel exhaust pipe 11 is installed upside down and the dripping funnel exhaust pipe 11 The lower port of the lower port is inserted into the double exhaust drip funnel to a certain depth, and the upper port of the drip funnel exhaust pipe 11 is provided with an exhaust intake valve 12, and the inside of the exhaust intake valve 12 is provided with a ventilating valve that stops at the entire valve port. A waterproof membrane 13, and a valve cover 14 is installed at the port of the exhaust and intake valve.

A needle sheath 8 is sheathed on the infusion needle 6, and a self-exhaust filter color-changing tampon 81 is provided at the mouth of the needle sheath to be discolored by contact with liquid.

The precision filtration membrane is hydrophilic, and there are many micropores distributed on the surface of the membrane. When the precision filtration membrane contacts the drip, the micropores open, and the drip passes through the automatic liquid stop layer for infusion; The hole is closed to prevent the passage of air, and the cavity in the valve body forms a negative pressure to stop the infusion. Therefore, after the infusion is completed, the present invention can automatically stop the liquid and prevent the phenomenon of blood returning from the infusion.

The side of the anti-bubble protruding tube of the present invention is provided with a drain hole for draining liquid. Such a way of lowering the liquid on the side effectively prevents the generation of infusion bubbles and prevents the bubbles from entering the infusion tube, ensuring the safety of infusion and reducing the medical staff's time for infusion. Exhaust workload, especially when refilling infusion bottles, no secondary exhaust work is required, and the infusion can be directly inserted into the bottle.

When the liquid inlet drip funnel inside the double exhaust joint seat is filled with liquid, the liquid level inside the drip funnel rises. If the liquid level rises too fast, the liquid level will directly submerge the L-shaped drip tube inside the double exhaust joint seat. After the exhaust pipe of the drip funnel is blocked, it cannot continue to exhaust, and then the liquid level in the drip funnel cannot continue to rise, so as to achieve the control of the liquid level of the drip funnel, in the exhaust pipe of the drip funnel After being submerged, it can be turned into an air intake pipe in an instant to supply air to the inner cavity of the dripping funnel, and then let the medicinal liquid in the dripping funnel continue to flow down to complete the infusion.

The needle cover of the infusion needle is equipped with a self-venting filter color-changing cotton plug, which has the characteristics of being able to exhaust air and change color when exposed to water. When the medicine liquid is discharged from the position of the infusion needle, it immediately touches the self-venting filter color-changing tampon, and the self-venting filter color-changing tampon changes color quickly, reminding the medical staff to do the exhaust work, which greatly saves the medical staff It is necessary to waste a lot of liquid medicine during infusion to know that the exhaust is over, especially the waste of some expensive liquid medicine, which brings great economic losses to patients. At present, there are many self-venting filter color-changing cotton on the market Plugs are on sale and are widely used.

The above examples only express several implementations of the present invention, and the descriptions thereof are more specific and detailed, but should not be construed as limiting the patent scope of the present invention. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the patent and protection scope of the present invention should be based on the appended claims.

Claims (3)

1. a kind of filtering of double-exhaust multi-layer precise stops liquid multifunctional transfusion system, including using infusion pipeline (1), puncture outfit (2), double It is vented dropping funnel (3), flow regulator (4), female Luer (5) and transfusion needle (6), the double-exhaust dropping funnel is by upper dropping funnel (31) It is formed with lower dropping funnel (32), it is characterised in that: the raised convex pipe of Anti-bubble among described lower dropping funnel (32) bottom and upward (33), the side of the convex pipe of the Anti-bubble, which opens up, is distributed with a plurality of vertically arranged drainage hole (34), and the lower dropping funnel (32) Top is additionally provided with an inside in the automatic liquid-stopping float (35) of the taper of cavity, and the automatic liquid-stopping float (35) is equipped with bottom It is raised for accommodating the accommodating chamber of the convex pipe of Anti-bubble among portion and upward, and the side wall of the automatic liquid-stopping float have it is a plurality of under Water tooth (36) is additionally provided with one layer of coarse filtration film (37) at the top of the upper end of automatic liquid-stopping float.

2. double-exhaust multi-layer precise filtering according to claim 1 stops liquid multifunctional transfusion system, it is characterised in that: the drop The inside of bucket (3) is equipped with double-exhaust and stops liquid gassing prevention device, and it includes being arranged in upper dropping funnel that the double-exhaust, which stops liquid gassing prevention device, (31) the double-exhaust plinth (9) of upper end and perfusion tube docking, the feed liquor dropping funnel being vertically provided inside double-exhaust plinth (9) Manage the dropping funnel ventilation pipe (11) of (10) and setting in the internal L-type of double-exhaust plinth (9), the dropping funnel ventilation pipe (11) The lower port of handstand installation and the dropping funnel ventilation pipe (11) is inserted into double-exhaust dropping funnel certain depth, the dropping funnel ventilation pipe (11) upper port is equipped with an exhaust intake valve (12), and the inside of exhaust intake valve (12) is equipped with backstop in entire valve The breathable waterproof membrane (13) of mouth, and the port of the exhaust intake valve goes out to be equipped with valve deck (14).

3. double-exhaust multi-layer precise filtering according to claim 1 stops liquid multifunctional transfusion system, it is characterised in that: described defeated It is arranged on liquid needle (6) needle guard (8), changes colour tampon equipped with contact liq changeable colour from exhaust gas filter at the running-on of the needle guard (81).