CN213911773U - Precision filter capable of avoiding air residue - Google Patents
Precision filter capable of avoiding air residue Download PDFInfo
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- CN213911773U CN213911773U CN202022338424.2U CN202022338424U CN213911773U CN 213911773 U CN213911773 U CN 213911773U CN 202022338424 U CN202022338424 U CN 202022338424U CN 213911773 U CN213911773 U CN 213911773U
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- upper cover
- water inlet
- lower seat
- water outlet
- outlet channel
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Abstract
The utility model relates to the technical field of medical equipment, in particular to a precise filter for avoiding air residue, which comprises an upper cover and a lower seat, wherein a filtering membrane is arranged between the upper cover and the lower seat, and the precise filter is characterized in that a water inlet channel is arranged in the upper cover, the end part of the water outlet end at the bottom of the water inlet channel is closed, and a plurality of side holes are arranged on the side surface; be equipped with outlet channel in the lower seat, outlet channel top is intake and is held the tip and seal, and a plurality of side channels have been seted up to the side, and its advantage lies in: simple structure, it is convenient to install, can arrange the air to the greatest extent effectively, avoids the air to remain.
Description
Technical Field
The utility model relates to the technical field of medical equipment, a avoid remaining precision filter of air particularly.
Background
An infusion apparatus is a medical appliance which is frequently used when treating diseases, and the infusion apparatus is needed when patients are infused. The transfusion system all need fill the process through liquid before using, makes the inner chamber of transfusion system be full of liquid, because the inner chamber sectional area of each part of transfusion system is different, extremely easily forms the gas-liquid mixture cavity of gas and liquid medicine at the in-process of filling, and this gas-liquid mixture cavity can get into the infusion pipe of drip chamber below simultaneously rapidly, bubble phenomenon when forming the infusion. Meanwhile, the micro-bubbles in the lower infusion tube have surface tension, so that the micro-bubbles can be adsorbed on the inner wall of the lower infusion tube during the infusion process. These air bubbles risk entering the patient during the infusion process, causing a hazard to the patient's air embolism due to the air bubbles.
Therefore, before the medical staff performs the infusion, the bubble in the infusion set must be completely discharged and then the infusion is performed. The usual manual methods of gas removal are: after the bottle stopper puncture outfit is inserted into the infusion bottle stopper, the dropping funnel is squeezed by hands to make the liquid medicine enter the dropping funnel, and the dropping funnel is hung upside down, so that after a certain amount of liquid medicine is filled into the dropping funnel, the dropping funnel is quickly and vertically placed, and a large amount of bubbles can be prevented from being generated. The manual operation methods are complicated and time-consuming, and air in the infusion apparatus is not easy to exhaust; and after the medical staff finishes the operation of removing the air in the transfusion device, a small amount of air is often remained in the transfusion device, and because at the moment, the medical staff is required to remove the air remained in the transfusion device little by little, the exhaust stability is not high, and the emergency transfusion and the emergency rescue of serious patients are not facilitated.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problem that the gas in the infusion apparatus in the prior art is difficult to be completely exhausted, and provides a precise filter for avoiding air residue for the infusion apparatus.
In order to achieve the aim, the precision filter capable of avoiding air residue comprises an upper cover and a lower seat, wherein a filtering membrane is arranged between the upper cover and the lower seat, and the precision filter is characterized in that a water inlet channel is arranged in the upper cover, the end part of a water outlet end at the bottom of the water inlet channel is closed, and a plurality of side holes are formed in the side surface of the water inlet channel; a water outlet channel is arranged in the lower seat, the end part of the water inlet end at the top of the water outlet channel is closed, and a plurality of side grooves are formed in the side surface of the water outlet channel.
Preferably, the upper cover and the lower seat are ultrasonically sealed.
Preferably, the top of the water inlet channel of the upper cover is connected with the upper guide pipe, and the bottom of the water outlet channel of the lower seat is connected with the lower guide pipe.
Preferably, the inner cavity of the lower seat is funnel-shaped, a plurality of upright columns are arranged on the periphery of the water inlet end of the water outlet channel, and the upright columns are used for supporting the filtering membrane.
Compared with the prior art, the utility model, its advantage lies in: simple structure, it is convenient to install, can arrange the air to the greatest extent effectively, avoids the air to remain.
Drawings
FIG. 1 is an exploded view of the structure of the present invention;
FIG. 2 is a schematic view of the structure of the upper cover of the present invention;
FIG. 3 is a schematic view of the lower seat structure of the present invention;
in the figure: 1. the filter membrane comprises an upper cover 2, a filter membrane 3, a lower seat 4, an upper cover top end 5, a side hole 6, a lower seat top end 7, a side groove 8, an upper guide pipe 9 and a lower guide pipe.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, and the structure and principle of the present invention will be clear to those skilled in the art. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The utility model provides a precise filter for avoiding air residue, which comprises an upper cover, a lower seat and a filtering membrane, wherein the upper cover is provided with a water inlet channel, the end part of the water outlet end at the bottom of the water inlet channel is closed, and the side surface is provided with a plurality of side holes; the water outlet channel is arranged in the lower seat, the end part of the water inlet end at the top of the water outlet channel is closed, the side surface of the water outlet channel is provided with a plurality of side grooves, the filtering membrane is arranged between the upper cover and the lower seat, the top of the water inlet channel of the upper cover is connected with the upper guide pipe, and the bottom of the water outlet channel of the lower seat is connected with the lower guide pipe.
The working principle is as follows:
the liquid flows in from the upper conduit, because the end part of the water outlet end of the water inlet channel of the upper cover is closed, the side surface is provided with a side hole, therefore, the liquid can only flow out linearly from the side holes, the liquid flows to the outer edge of the filtering membrane along the inner wall of the shell and then flows to the position of the central liquid outlet hole, so that the phenomenon that the liquid flows out linearly to block the liquid outlet in advance to cause air residue is avoided, along with the continuous wetting of the hydrophilic filtering membrane, the liquid flows to the cavity of the lower seat through the filtering membrane, three side grooves with the width less than 0.7mm are designed in the lower seat, and because any liquid has surface tension, under the action of tension, liquid can not pass through the side grooves in time, but gas can pass through the side grooves, therefore, the gas in the lower seat can be greatly discharged, the liquid level becomes higher and the pressure becomes higher as the discharged liquid of the gas is increased, the surface tension of the liquid is broken, and the liquid enters the lower guide pipe through the side groove.
Claims (4)
1. A precise filter for avoiding air residue comprises an upper cover and a lower seat, wherein a filtering membrane is arranged between the upper cover and the lower seat, and the precise filter is characterized in that
The upper cover is internally provided with a water inlet channel, the end part of the water outlet end at the bottom of the water inlet channel is closed, and the side surface of the water inlet channel is provided with a plurality of side holes;
a water outlet channel is arranged in the lower seat, the end part of the water inlet end at the top of the water outlet channel is closed, and a plurality of side grooves are formed in the side surface of the water outlet channel.
2. The precision filter for preventing air entrapment of claim 1 wherein the upper cover and the lower base are ultrasonically sealed.
3. The precision filter for preventing air residue of claim 1, wherein the top of the water inlet channel of the upper cover is connected with the upper guide tube, and the bottom of the water outlet channel of the lower base is connected with the lower guide tube.
4. The precision filter for preventing air entrapment of claim 1 wherein the lower housing has a funnel shape and the periphery of the inlet end of the outlet channel has a plurality of posts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022338424.2U CN213911773U (en) | 2020-10-20 | 2020-10-20 | Precision filter capable of avoiding air residue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022338424.2U CN213911773U (en) | 2020-10-20 | 2020-10-20 | Precision filter capable of avoiding air residue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213911773U true CN213911773U (en) | 2021-08-10 |
Family
ID=77163080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022338424.2U Active CN213911773U (en) | 2020-10-20 | 2020-10-20 | Precision filter capable of avoiding air residue |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213911773U (en) |
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2020
- 2020-10-20 CN CN202022338424.2U patent/CN213911773U/en active Active
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