Offset type medicine adding filter capable of preventing transfusion particles from falling off
By biasing the dosing port in the dosing filter and adding a nylon filter, the problem of the infusion tube interfering with the dosing work and the expansion particles of the drug liquid filter membrane is solved, and the effect of improving work efficiency and ensuring the safety of the infusion is achieved.
Patent Information
- Application Number
- CN202420984356.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-09
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-05-09
AI Technical Summary
The dosing port of the existing dosing filter faces upwards in the same direction as the infusion tube, causing the infusion tube to interfere with the dosing work and affects the work efficiency. Moreover, the liquid filter membrane will experience expanded particles and chip loss after long-term use, which may mix into the patient's body.
A biased dosing filter is designed to prevent interference by biasing the dosing port to prevent it from overlapping with the infusion tube. In addition, a nylon filter mesh is added below the filter membrane of the medicine liquid to prevent expansion particles and chip loss from entering the infusion system.
It effectively eliminates the interference of the infusion tube on drug dosing work, improves the work efficiency of medical staff, and eliminates the expansion particles and chips of the medicinal liquid filter membrane into the patient's body through a nylon filter, ensuring the safety of infusion.
Smart Images
Figure CN222549856U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a clinical application medical device, in particular to a biased drug adding filter for preventing infusion particles from falling off. Background Art
[0002] The dosing port of the dosing filter currently used in clinical practice is set in the same direction as the dosing filter infusion tube, which causes the dosing filter infusion tube of the gravity infusion device to hinder the medical staff from doing the dosing work during the dosing process, which not only affects the work efficiency of the medical staff, but also violates the safety and hygiene operation regulations of the medical staff.
[0003] At the same time, in the prior art, in order to ensure the safety of infusion of gravity infusion devices, a drug liquid filter membrane is provided in the drug dosing filter. The drug liquid filter can effectively prevent dust or foreign matter in the surrounding air from mixing into the patient's body along with the infusion during the drug dosing process. However, the drug liquid filter will swell and fall off after being immersed for a long time, and will mix into the patient's body along with the infusion. Utility Model Content
[0004] In view of this, the main purpose of the utility model is to provide an offset dosing filter that can prevent infusion particles from falling off. Through this technical solution, the dosing port of the dosing filter is offset, which eliminates the problem of the infusion tube interfering with the dosing work. At the same time, a nylon filter net is added under the drug filter membrane of the dosing filter, thereby effectively eliminating the infusion safety problem caused by the expansion of the drug filter membrane and the shedding of particles.
[0005] In order to achieve the above-mentioned purpose, the technical scheme of the utility model is implemented as follows: an offset type anti-infusion particle shedding drug adding filter comprises a shell, an infusion inlet and an infusion outlet, the shell is circular as a whole, and is composed of a front half cover shell and a rear half cover shell, the infusion inlet is arranged at the top of the arc surface of the front half cover shell, the infusion outlet is arranged at the bottom of the arc surface of the rear half cover shell, and also comprises a drug adding port, a silicone soft plug, a drug liquid filter membrane and a nylon filter net, the rear part of the front half cover shell is provided with an annular convex ridge, and the front of the rear half cover shell is provided with a An annular recess is provided on the back half of the cover, the liquid medicine filter membrane and the nylon filter screen are arranged in the annular recess of the rear half cover shell, the annular ridge of the front half cover shell is inserted in the annular recess of the rear half cover shell, the back of the nylon filter screen is pressed against the annular recess of the rear half cover shell, and the annular ridge of the front half cover shell is pressed against the front of the liquid medicine filter membrane, so that the front half cover shell, the liquid medicine filter membrane, the nylon filter screen and the rear half cover shell are buckled together, the drug adding port is arranged on the front half cover shell deflected 15°-45° from the vertical direction, and the silicone soft plug is buckled on the drug adding port.
[0006] As a further technical solution, it also includes a ventilation hole, an annular platform and a liquid-blocking air membrane. The ventilation hole is a conical hole that is small in the front and large in the back and is arranged on the front face of the front half-cover shell. An annular platform is arranged on the inner wall of the front half-cover shell at the rear end of the ventilation hole. The liquid-blocking air membrane is fixed on the annular platform of the front half-cover shell.
[0007] As a further technical solution, it also includes a filter support column, and several filter support columns are evenly arranged on the inner wall of the rear half cover shell in the horizontal direction. The middle part of the drug liquid filter membrane and the nylon filter net is arranged on the filter support column, and the front end of the filter support column is supported on the back of the nylon filter net.
[0008] The beneficial effect of adopting the above technical scheme is: an offset drug dosing filter that prevents infusion particles from falling off. Through this technical scheme, the drug dosing port of the drug dosing filter is offset, which eliminates the problem of infusion tube interfering with the drug dosing work. At the same time, a nylon filter net is added under the drug liquid filter membrane of the drug dosing filter, thereby effectively eliminating the infusion safety problems of drug filter membrane expansion particles and debris falling off, and fully complies with the current relevant national standards. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0010] Figure 2 for Figure 1 Schematic diagram of the rear view structure.
[0011] Figure 3 for Figure 1 Schematic diagram of the side cross-sectional structure.
[0012] In the figure, 1 is an infusion inlet, 2 is an infusion outlet, 3 is a front half cover shell, 4 is a rear half cover shell, 5 is a drug adding port, 6 is a silicone soft plug, 7 is a drug liquid filter membrane, 8 is a nylon filter mesh, 9 is an annular convex ridge, 10 is an annular concave platform, 11 is an air vent, 12 is an annular platform, 13 is a liquid-blocking air membrane, and 14 is a filter support column. DETAILED DESCRIPTION
[0013] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.
[0014] like Figure 1-Figure 3As shown, the utility model relates to an offset type anti-infusion particle shedding drug adding filter, comprising a shell, an infusion inlet 1 and an infusion outlet 2. The shell is circular as a whole, and is composed of a front half cover shell 3 and a rear half cover shell 4. The infusion inlet 1 is arranged at the top of the arc surface of the front half cover shell 3, and the infusion outlet 2 is arranged at the bottom of the arc surface of the rear half cover shell 4. It also includes a drug adding port 5, a silicone soft plug 6, a drug liquid filter membrane 7 and a nylon filter screen 8. The rear part of the front half cover shell 3 is provided with an annular convex ridge 9, and the front part of the rear half cover shell 4 is provided with an annular concave platform 10. The drug liquid The filter membrane 7 and the nylon filter screen 8 are arranged in the annular recess 10 of the rear half cover shell body 4, the annular ridge 9 of the front half cover shell body 3 is inserted in the annular recess 10 of the rear half cover shell body 4, the back of the nylon filter screen 8 is pressed against the annular recess 10 of the rear half cover shell body 4, and the annular ridge 9 of the front half cover shell body 3 is pressed against the front of the liquid medicine filter membrane 7, so that the front half cover shell body 3, the liquid medicine filter membrane 7, the nylon filter screen 8 and the rear half cover shell body 4 are buckled together, the dosing port 5 is arranged on the front half cover shell body 3 deflected 30° from the vertical direction, and the silicone plug 6 is buckled on the dosing port 5.
[0015] As a further embodiment, it also includes a vent hole 11, an annular platform 12 and a liquid-blocking air membrane 13. The vent hole 11 is a conical hole that is smaller in the front and larger in the back and is arranged on the front face of the front half-cover shell 3. An annular platform 12 is arranged on the inner wall of the front half-cover shell 3 at the rear end of the vent hole 11. The liquid-blocking air membrane 13 is fixed on the annular platform 12 of the front half-cover shell 3.
[0016] As a further embodiment, it also includes a filter support column 14, and several filter support columns 14 are evenly arranged on the inner wall of the rear half cover shell 4 along the horizontal direction. The middle part of the liquid filter membrane 7 and the nylon filter mesh 8 is arranged on the filter support column 14, and the front end of the filter support column 14 is supported on the back of the nylon filter mesh 8.
[0017] When the utility model is working, the dosing port 5 is arranged in a direction that deviates upward from the infusion inlet 1 by about 30°, avoiding the overlap of the dosing port 5 with the infusion tube of the gravity infusion device, thereby eliminating the interference of the infusion tube during the dosing operation. The pressure in the gravity infusion device is greater than the external air pressure. The air vent 11 can only gather and precipitate the air in the gravity infusion device, while the liquid in the gravity infusion device will not leak out. The medicine liquid filter membrane 7 will block smaller dust or foreign matter in the medicine liquid, but the medicine liquid filter membrane 7 will swell and fall off after relatively long immersion. The nylon filter mesh 8 will block the particles and debris that fall off after expansion to prevent them from entering the human body. At the same time, the medicine liquid filter membrane 7 and the nylon filter mesh 8 are supported by the filter support column 14, which effectively increases the surface tension of the medicine liquid filter membrane 7 and the nylon filter mesh 8, and eliminates the center collapse of the medicine liquid filter membrane 7 and the nylon filter mesh 8 that affects the filtering effect.
[0018] The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention.
Claims
1. An offset type anti-infusion particle shedding filter, comprising a housing, an infusion inlet and an infusion outlet, wherein the housing is circular as a whole and is composed of a front half cover housing and a rear half cover housing, wherein the infusion inlet is arranged at the top of the arc surface of the front half cover housing, and the infusion outlet is arranged at the bottom of the arc surface of the rear half cover housing, characterized in that: It also includes a dosing port, a silicone plug, a liquid medicine filter membrane and a nylon filter screen. The rear part of the front half cover shell is provided with an annular convex ridge, the front part of the rear half cover shell is provided with an annular concave platform, the liquid medicine filter membrane and the nylon filter screen are arranged in the annular concave platform of the rear half cover shell, the annular convex ridge of the front half cover shell is inserted into the annular concave platform of the rear half cover shell, the back of the nylon filter screen is pressed against the annular concave platform of the rear half cover shell, and the annular convex ridge of the front half cover shell is pressed against the front of the liquid medicine filter membrane, so that the front half cover shell is buckled together with the liquid medicine filter membrane, the nylon filter screen and the rear half cover shell, the dosing port is arranged on the front half cover shell deflected 15°-45° from the vertical direction, and the silicone plug is buckled on the dosing port.
2. The offset type anti-infusion particle shedding filter according to claim 1, characterized in that: It also includes an air vent, an annular platform and a liquid-blocking air membrane. The air vent is a conical hole that is small in the front and large in the back and is arranged on the front face of the front half-cover shell. An annular platform is arranged on the inner wall of the front half-cover shell at the rear end of the air vent, and the liquid-blocking air membrane is fixed on the annular platform of the front half-cover shell.
3. The offset type anti-infusion particle shedding filter according to claim 1, characterized in that: It also includes filter support columns, which are evenly arranged on the inner wall of the rear half cover shell in the horizontal direction. The middle part of the liquid filter membrane and the nylon filter screen is arranged on the filter support columns, and the front end of the filter support columns is supported on the back of the nylon filter screen.