Efficient filtering structure of infusion set for pump

Abstract

This utility model relates to the field of medical device technology, specifically to a high-efficiency filtration structure for a pump infusion set. The upper shell of the drug solution filter is located at the front end of the lower shell of the drug solution filter, and the two are welded together using an ultrasonic welding machine to ensure structural stability. An air filter membrane is hot-pressed into the upper shell of the drug solution filter to remove air from the filter. The drug solution filter membrane is ultrasonically welded into multiple distribution slots within the lower shell of the drug solution filter. The drug solution enters from the inlet of the upper shell, passes through the drug solution filter membrane to filter insoluble particles and impurities, flows into the lower shell cavity for sedimentation, and finally flows out from the outlet. This process effectively increases the residence time of the drug solution within the filter, improves filtration efficiency, and reduces the risk of insoluble particles and impurities entering the patient's body.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a high-efficiency filtration structure for a pump infusion set. Background Technology

[0002] In the field of medical devices, infusion pumps are widely used medical equipment, and the drug solution filter, as a key component of these pump infusion sets, plays a vital role. Currently available drug solution filters can filter out some impurities in the medication solution to a certain extent, preventing larger insoluble particles from entering the human circulatory system. This reduces the risk of acute adverse reactions caused by these impurities, providing a certain degree of protection for patient infusion safety. In clinical treatment, it ensures the relatively pure delivery of medication and is an indispensable and important part of the medical infusion process.

[0003] However, during intravenous infusion, existing drug solution filters are not efficient at filtering these insoluble particles and impurities, resulting in a significant portion of these particles and impurities entering the patient's body along with the medication. These insoluble particles and impurities entering the body may pose potential and long-term harm. Utility Model Content

[0004] The purpose of this invention is to provide a high-efficiency filtration structure for pump-type infusion sets, aiming to solve the technical problem that existing drug solution filters cannot efficiently filter insoluble particles and impurities during infusion, resulting in a significant portion of particles and impurities entering the patient's body along with the drug solution. These insoluble particles and impurities entering the body may pose potential and long-term harms.

[0005] To achieve the above objectives, this utility model employs a high-efficiency filtration structure for a pump infusion set, comprising an upper shell for a drug filter, an air filter membrane, a drug filter membrane, and a lower shell for a drug filter. The upper shell for a drug filter is disposed on the front end face of the lower shell for a drug filter. The air filter membrane is disposed inside the upper shell for a drug filter, and the drug filter membrane is disposed inside the lower shell for a drug filter.

[0006] The upper shell of the liquid filter is welded to the front end face of the lower shell of the liquid filter using an ultrasonic welding machine.

[0007] The air filter membrane is hot-pressed and installed inside the upper shell of the drug filter using a hot press.

[0008] The drug solution filter membrane is welded into the lower shell of the drug solution filter using an ultrasonic welding machine.

[0009] The upper shell of the liquid medicine filter is provided with a medicine inlet, and the lower shell of the liquid medicine filter is provided with a medicine outlet.

[0010] The lower shell of the liquid filter is provided with multiple flow dividers, and multiple flow dividers form multiple flow dividers. The liquid filter membrane is welded to the multiple flow dividers using an ultrasonic welding machine.

[0011] The lower shell of the liquid filter is provided with multiple flow dividers, and multiple flow dividers form multiple flow dividers. The liquid filter membrane is welded to the multiple flow dividers using an ultrasonic welding machine.

[0012] This invention discloses a high-efficiency filtration structure for a pump-type infusion set. The upper shell of the drug solution filter is positioned at the front end of the lower shell of the drug solution filter, and the two are welded together using an ultrasonic welding machine to ensure structural stability. An air filter membrane is hot-pressed into the upper shell of the drug solution filter using a hot press to remove air from the filter. The drug solution filter membrane is ultrasonically welded into multiple diversion slots within the lower shell of the drug solution filter. The drug solution enters through the inlet of the upper shell, passes through the drug solution filter membrane to filter insoluble particles and impurities, flows into the lower shell cavity for sedimentation, and finally flows out through the outlet. This process effectively increases the residence time of the drug solution within the filter, improves filtration efficiency, and reduces the risk of insoluble particles and impurities entering the patient's body. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a three-dimensional perspective view of the high-efficiency filtration structure of the pump infusion set of this utility model.

[0015] Figure 2 This is a split diagram of the high-efficiency filtration structure of the pump infusion set of this utility model.

[0016] Figure 3 This is a schematic diagram of the internal structure of the high-efficiency filtration structure of the pump infusion set of this utility model.

[0017] 1-Upper shell of liquid medicine filter, 2-Air filter membrane, 3-Liquid medicine filter membrane, 4-Lower shell of liquid medicine filter, 5-Inlet of medicine, 6-Outlet of medicine, 7-Diverter plate, 8-Diverter groove, 9-Flow channel. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0019] Please see Figures 1 to 3 This utility model provides a high-efficiency filtration structure for a pump infusion set, including an upper shell 1 for a drug filter, an air filter membrane 2, a drug filter membrane 3, and a lower shell 4 for a drug filter. The upper shell 1 is disposed on the front end face of the lower shell 4. The air filter membrane 2 is disposed inside the upper shell 1, and the drug filter membrane 3 is disposed inside the lower shell 4.

[0020] In this embodiment, the key components of drug filtration are integrated through an integrated design to form a highly efficient and closed filtration system. This overall structure not only simplifies the assembly process and improves production efficiency, but also effectively improves drug filtration efficiency and reduces the risk of insoluble particles and impurities entering the patient's body by optimizing the interaction between the components.

[0021] Furthermore, the upper shell 1 of the liquid filter is welded to the front end face of the lower shell 4 of the liquid filter using an ultrasonic welding machine.

[0022] In this embodiment, the upper shell 1 of the liquid filter and the lower shell 4 of the liquid filter are firmly connected by ultrasonic welding technology, which ensures the sealing and stability of the filter.

[0023] Furthermore, the air filter membrane 2 is hot-pressed and installed inside the upper shell 1 of the medicine filter using a hot press.

[0024] In this embodiment, the air filter membrane 2 is precisely pressed into the upper shell 1 of the medicine filter by a hot press, which effectively removes air from the filter and prevents air bubbles from interfering with the medicine filtration process.

[0025] Furthermore, the liquid filter membrane 3 is welded into the lower shell 4 of the liquid filter using an ultrasonic welding machine.

[0026] In this embodiment, the liquid filter membrane 3 is precisely fixed inside the lower shell 4 of the liquid filter using ultrasonic welding technology, forming a reliable filtration barrier.

[0027] Furthermore, the upper shell 1 of the liquid filter is provided with a medicine inlet 5, and the lower shell 4 of the liquid filter is provided with a medicine outlet 6.

[0028] In this embodiment, by providing an inlet 5 on the upper shell 1 of the medicine filter and an outlet 6 on the lower shell, a clear and smooth medicine flow channel 9 is formed. This design allows the medicine to flow along a predetermined path, ensuring the continuity and stability of the filtration process.

[0029] Furthermore, the lower shell 4 of the liquid filter is provided with multiple diversion plates 7, and multiple diversion grooves 8 are formed between the multiple diversion plates 7. The liquid filter membrane 3 is welded to the multiple diversion grooves 8 by an ultrasonic welding machine.

[0030] In this embodiment, the design of multiple diversion plates 7 and diversion channels 8 not only enhances the filtration capacity of the filter, but also reduces dead corners and residues in the filtration process by optimizing the flow path of the liquid.

[0031] Furthermore, a flow channel 9 is formed between the drug inlet 5, the plurality of diversion channels 8 and the drug outlet 6, and the air filter membrane 2 and the liquid filter membrane 3 are located between the drug inlet 5 and the plurality of diversion channels 8.

[0032] In this embodiment, after the liquid medicine enters through the inlet 5, it passes through the air filter membrane 2 and the liquid medicine filter membrane 3 in sequence, and finally flows to the outlet 6 through the diversion channel 8. This arrangement ensures that the liquid medicine can fully contact the filter membrane during the filtration process, thereby improving filtration efficiency and filtration quality.

[0033] In this invention, the liquid medicine first enters through the inlet 5 of the upper shell 1 of the liquid medicine filter and flows through the air filter membrane 2 installed inside the upper shell under the action of gravity to remove air from the liquid medicine. Subsequently, the liquid medicine passes through the liquid medicine filter membrane 3 precisely welded to multiple diversion grooves 8 inside the lower shell 4 of the liquid medicine filter. This filter membrane effectively intercepts insoluble particles and impurities in the liquid medicine. The filtered liquid medicine settles in the cavity of the lower shell 4 of the liquid medicine filter, further reducing particles and impurities. Finally, the purified liquid medicine flows out through the outlet 6 at the bottom of the lower shell 4 of the liquid medicine filter, completing the entire high-efficiency filtration process and ensuring the safety and effectiveness of the infusion.

[0034] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. A high-efficiency filtration structure for a pump infusion set, characterized in that, The filter includes an upper shell for a liquid medicine filter, an air filter membrane, a liquid medicine filter membrane, and a lower shell for a liquid medicine filter. The upper shell for a liquid medicine filter is disposed on the front end face of the lower shell for a liquid medicine filter. The air filter membrane is disposed inside the upper shell for a liquid medicine filter, and the liquid medicine filter membrane is disposed inside the lower shell for a liquid medicine filter.

2. The high-efficiency filtration structure of the pump infusion set as described in claim 1, characterized in that, The upper shell of the liquid filter is welded to the front end face of the lower shell of the liquid filter using an ultrasonic welding machine.

3. The high-efficiency filtration structure of the pump infusion set as described in claim 2, characterized in that, The air filter membrane is hot-pressed and installed inside the upper shell of the drug filter using a hot press.

4. The high-efficiency filtration structure of the pump infusion set as described in claim 3, characterized in that, The drug solution filter membrane is welded into the lower shell of the drug solution filter using an ultrasonic welding machine.

5. The high-efficiency filtration structure of the pump infusion set as described in claim 4, characterized in that, The upper shell of the liquid filter is provided with a medicine inlet, and the lower shell of the liquid filter is provided with a medicine outlet.

6. The high-efficiency filtration structure of the pump infusion set as described in claim 5, characterized in that, The lower shell of the liquid filter is provided with multiple flow dividers, and multiple flow dividers are formed between the multiple flow dividers. The liquid filter membrane is welded to the multiple flow dividers by an ultrasonic welding machine.

7. The high-efficiency filtration structure of the pump infusion set as described in claim 6, characterized in that, A flow channel is formed between the drug inlet, the plurality of diversion channels, and the drug outlet, and the air filter membrane and the drug liquid filter membrane are located between the drug inlet and the plurality of diversion channels.

Images