CN205055020U - Infusion apparatus capable of exhausting air automatically - Google Patents

Abstract

The utility model belongs to the field of medical appliances and relates to an automatic exhaust infusion set. The exhaust device in the drip funnel includes an exhaust seat and a cap. The exhaust seat is arranged at the liquid outlet at the bottom of the drip funnel. There is a hollow exhaust core connected with the liquid outlet, a liquid inlet gap is provided between the exhaust core and the exhaust seat, a liquid inlet groove is provided on the side wall of the exhaust core, and a connecting drop is provided on the exhaust seat. The liquid inlet hole between the inner cavity of the bucket and the liquid inlet gap, the top of the exhaust seat is provided with a cap, and the cap is provided with at least one exhaust groove. The gas in the gas-liquid mixture entering the dropping funnel can be discharged through the liquid inlet hole on the exhaust seat and the liquid inlet groove on the exhaust core, and the fine air bubbles can be intercepted. The liquid inlet hole on the exhaust seat and the cap The unique exhaust groove can maintain a certain liquid level in the dripping funnel, so as to realize multiple automatic exhausts. When the infusion stops midway or the liquid needs to be vented again after changing the liquid, there is no need to manually invert or squeeze the dripping funnel.

Description

Auto Vent Infusion Set

technical field

The utility model relates to an automatic exhaust infusion set, which belongs to the field of medical appliances.

Background technique

Existing common infusion set, when clinical use, medical personnel must discharge the air bubble in the infusion catheter fully before infusion. The usual method is to invert or squeeze the dripping funnel after the cork piercer is inserted into the infusion bottle stopper, so that the medicinal liquid enters the dripping funnel, and when the dripping funnel is filled with about half of the liquid, quickly put the dripping funnel back into place. Returning to the normal use state, even so, the tube wall often absorbs air bubbles, and the medical staff needs to pinch the air bubbles with their fingers. This operation method is cumbersome and brings great inconvenience to the medical staff.

In order to solve the original problem, the patent No. 201110432748.5 self-venting anti-bubble infusion set provides a solution, but when the infusion is stopped halfway or the liquid medicine is replaced, if the liquid in the dripping funnel is emptied, it needs to be vented again for continued use. At this time, there is resistance in the infusion pipeline, and the exhaust speed will slow down. At the same time, because the surface of the liquid inlet tank of the exhaust core has been soaked by liquid, the liquid in the drip funnel can easily break through the surface tension of the liquid inlet tank and flow into the infusion pipeline. As a result, the liquid level of the dropping funnel is not high enough, so medical personnel still need to carry out the original manual inversion or exhaust operation of squeezing the dropping funnel.

Utility model content

According to the deficiencies in the prior art above, the technical problem to be solved by the utility model is to provide an automatic exhaust infusion set which can realize multiple automatic exhaust and maintain a certain liquid level.

The automatic exhaust infusion device described in the utility model includes a drip funnel, an exhaust device is arranged in the drip funnel, the exhaust device includes an exhaust seat and a cap, the exhaust seat is arranged at the liquid outlet at the bottom of the drip funnel, and the exhaust There is a hollow exhaust core connected to the liquid outlet in the seat, a liquid inlet gap is provided between the exhaust core and the exhaust seat, a liquid inlet groove is provided on the side wall of the exhaust core, and a liquid inlet groove is provided on the exhaust seat. The inner cavity of the dropping funnel is connected with the liquid inlet hole of the liquid inlet gap, a cap is arranged on the top of the exhaust seat, and at least one exhaust groove is arranged on the cap.

Preferably, the liquid inlet hole is arranged at the bottom of the exhaust seat or the lower part of the side wall of the exhaust seat.

Preferably, the liquid inlet holes on the exhaust seat and the liquid inlet grooves on the exhaust core are staggered from each other to avoid direct impact of the liquid and facilitate the exhaust of the passing liquid.

Preferably, there can be one or more vent grooves on the cap, and they can be located on the side of the cap or on the top of the cap.

The infusion set has a simple structure, a hollow exhaust core is arranged in the exhaust seat, there is a liquid inlet gap between the exhaust seat and the exhaust core, a liquid inlet groove is arranged on the side wall of the exhaust core, and a The liquid inlet hole allows the liquid dripping into the dropping funnel to pass through the exhaust device smoothly, and then flows into the infusion pipeline below the dropping funnel. The liquid inlet groove on the exhaust core can make the gas-liquid mixture dripping into the dropping funnel at the same time The gas in the dripping funnel is discharged, and the setting of the cap can buffer the liquid dripping into the dropping funnel to prevent the generation of secondary air bubbles in the dropping funnel. Liquid inlet holes are set on the exhaust seat, especially at the bottom of the exhaust seat or the lower part of the side wall of the exhaust seat. When the second exhaust (or subsequent multiple exhausts) is required, the liquid will overflow The liquid inlet hole continues to rise until it reaches the exhaust groove on the cap, and flows into the liquid inlet gap through the exhaust groove on the cap, and then the exhaust core completes the exhaust infusion process again, while maintaining a certain liquid level in the dropping funnel , without any inversion or squeezing of the dropping funnel.

Compared with the prior art, the utility model has the following beneficial effects:

The automatic exhaust infusion device has a simple structure and is easy to use. The liquid inlet hole on the exhaust seat and the liquid inlet groove on the exhaust core can discharge the gas in the gas-liquid mixture entering the dropping funnel, and intercept the finely divided Bubbles, the liquid inlet hole on the exhaust seat and the exhaust groove on the cap can maintain a certain liquid level in the dropping funnel, so as to realize multiple automatic exhausts. When the infusion stops midway or the liquid medicine is replaced, secondary exhaust is required. (or subsequent multiple exhausts) without manually inverting or squeezing the dripping funnel.

Description of drawings

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

Fig. 2 is the enlarged schematic view of the structure of the dropping funnel in Fig. 1;

Fig. 3 is a three-dimensional structure schematic diagram of one embodiment of the cap;

Fig. 4 is a schematic perspective view of an embodiment of the exhaust seat.

In the figure: 1. Cork puncturer; 2. Catheter; 3. Drip funnel; 4. Exhaust device; 5. Infusion pipeline; 6. Liquid medicine filter; 7. Vent hole; 9. Conical joint; 10. Flow regulator; 11. Cap; 12. Exhaust groove; 13. Exhaust seat; 14. Exhaust core; 15. Inlet hole; 16. Inlet tank; 17. Inlet gap .

detailed description

Embodiments of the utility model are further described below in conjunction with the accompanying drawings:

As shown in Figures 1 to 4, the automatic venting infusion set includes a cork piercer 1, a catheter 2, a drip funnel 3, an infusion line 5, a liquid medicine filter 6, a flow regulator 10, a conical joint 9 and an intravenous infusion Needle 8 (also can be without intravenous infusion needle 8), and exhaust device 4 is arranged in dropping funnel 3, and exhaust device 4 comprises exhaust seat 13 and block cap 11, and exhaust seat 13 is arranged at the liquid outlet place of dropping funnel 3 bottoms , the exhaust seat 13 is provided with a hollow exhaust core 14 communicating with the liquid outlet, a liquid inlet gap 17 is provided between the exhaust core 14 and the exhaust seat 13, and an inlet is provided on the side wall of the exhaust core 14. The liquid tank 16 and the exhaust seat 13 are provided with a liquid inlet 15 communicating with the inner chamber of the dropping funnel 3 and the liquid inlet gap 17. The top of the exhaust seat 13 is provided with a cap 11, and the cap 11 is provided with at least one exhaust groove 12.

Wherein: the liquid inlet hole 15 is arranged on the bottom of the exhaust seat 13 or the bottom of the side wall of the exhaust seat 13; the liquid inlet hole 15 on the exhaust seat 13 and the liquid inlet groove 16 on the exhaust core 14 are staggered from each other to avoid liquid leakage. Direct impact is beneficial to exhaust the liquid passing through; the exhaust groove 12 on the cap 11 can have one or more, and can be located on the side of the cap 11 or on the top of the cap 11 .

The infusion set has a simple structure. A hollow exhaust core 14 is arranged in the exhaust seat 13. There is a liquid inlet gap 17 between the exhaust seat 13 and the exhaust core 14. The side wall of the exhaust core 14 is provided with a liquid inlet groove 16. , the exhaust seat 13 is provided with a liquid inlet hole 15, which can make the liquid dripped into the dropping funnel 3 pass through the exhaust device 4 smoothly, and then flow into the infusion pipeline 5 below the dropping funnel 3, and the inlet on the exhaust core 14 The liquid tank 16 can discharge the gas in the gas-liquid mixture dropped into the dropping funnel 3 at the same time, and the setting of the cap 11 can buffer the liquid dripping into the dropping funnel 3 to prevent the generation of secondary air bubbles in the dropping funnel 3 . The liquid inlet hole 15 is arranged on the exhaust seat 13, especially the liquid inlet hole 15 is arranged at the bottom of the exhaust seat 13 or the side wall of the exhaust seat 13, when the second exhaust (or subsequent multiple exhaust) is required , the liquid will overflow the liquid inlet hole 15 and continue to rise until it reaches the exhaust groove 12 on the cap 11, and flows into the liquid inlet gap 17 through the exhaust groove 12 on the cap 11, and then the exhaust infusion process is completed again by the exhaust core 14 , while maintaining a certain liquid level in the dropping funnel 3 without any operation of inverting or squeezing the dropping funnel 3 .

In addition to the above, the bottle stopper piercer 1 in the infusion set can be a plastic piercer or a metal piercer or a plastic-metal mixed piercer; the liquid medicine filter 6 can be a common liquid medicine filter or a precision medicine liquid Filter, air vent 7 is set on the precise medicinal liquid filter, and vent hole 7 can have one or more, and precise medicinal liquid filter can be arranged on the position between flow regulator 10 and drip funnel 3 (this This solution is adopted in the embodiment, as shown in FIG. 1 ), and it can also be arranged at the end of the infusion line 5 (not shown in the figure).

The use process of this automatic exhaust infusion set is as follows:

When in use, insert the cork piercer 1 into the infusion bottle without inverting or squeezing the dripping funnel 3, and without closing the flow regulator 10, the liquid will flow into the dripping funnel 3 through the conduit 2, and the liquid flowing into the dripping funnel 3 will first Drop onto the cap 11, after being buffered by the cap 11, flow into the bottom of the drip funnel 3 along the outer wall of the exhaust seat 13, and then the liquid overflows the liquid inlet 15 at the bottom of the exhaust seat 13, and the liquid inlet 15 starts to enter the liquid, At the same time, the liquid level rises along the exhaust seat 13 until the exhaust groove 12, and flows into the liquid inlet gap 17 through the exhaust groove 12, and reaches the surface of the exhaust core 14. Due to the surface tension and capillary action of the liquid and gas, the liquid is exhausted first. Body, when the liquid level continues to rise over the exhaust core 14, the surface tension liquid breaks through the liquid inlet tank 16 and enters the hollow interior of the exhaust core, and flows out of the dripping funnel 3, and the exhausting of the dripping funnel 3 is completed, while the liquid in the dripping funnel 3 The liquid level is kept at a certain height, and the liquid flowing out from the dripping funnel 3 flows through the liquid medicine filter 6 through the infusion pipeline 5 below, and is infused through the intravenous infusion needle 8 .

Claims (4)

1. An automatic exhaust infusion set, comprising a drip funnel (3), an exhaust device is arranged in the drip funnel (3), and the exhaust device includes an exhaust seat (13) and a cap (11), and the exhaust seat (13) Be arranged at the liquid outlet place of dropping funnel (3) bottom, be provided with the hollow exhaust core (14) that communicates with this liquid outlet in the exhaust seat (13), exhaust core (14) and exhaust seat ( 13) is provided with a liquid inlet gap (17), and the side wall of the exhaust core (14) is provided with a liquid inlet tank (16), which is characterized in that: the exhaust seat (13) is provided with a connecting drip funnel (3) The liquid inlet hole (15) of the inner cavity and the liquid inlet gap (17), the top of the exhaust seat (13) is provided with a cap (11), and the cap (11) is provided with at least one exhaust groove (12); The liquid hole (15) is arranged at the bottom of the exhaust seat (13) or the lower part of the side wall of the exhaust seat (13). 2. The automatic exhaust infusion set according to claim 1, characterized in that: the liquid inlet hole (15) on the exhaust seat (13) and the liquid inlet groove (16) on the exhaust core (14) ) are staggered from each other. 3. The automatic venting infusion set according to claim 1, characterized in that: the venting groove (12) is located on the side of the cap (11). 4. The automatic venting infusion set according to claim 1, characterized in that: the venting groove (12) is located at the top of the cap (11).