Gyroscope self-bleeding liquid medicine filter
By designing a gyro-type self-venting drug solution filter, and utilizing a combination of venting holes and an air filter membrane, the problem of drug solution leakage during the venting process was solved, thus achieving safe and efficient drug solution infusion.
Patent Information
- Application Number
- CN202522079567.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-26
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-26
AI Technical Summary
Existing medication filters are prone to leakage during the venting process, resulting in waste, affecting intravenous puncture procedures, and hindering nurses' operations.
Design a gyroscope-type self-venting medicine filter, comprising an upper shell, a medicine filter membrane, and an air filter membrane. By setting an exhaust hole and sealing the channel between the medicine filter and the outside world after venting, the medicine is prevented from flowing out.
It effectively prevents the medication from leaking out, avoids waste, and ensures safety and efficiency during the infusion process.
Smart Images
Figure CN224672182U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filter technology, and more specifically, to a gyroscope-type self-venting liquid filter. Background Technology
[0002] Existing drug solution filters mainly consist of a shell and a filter membrane, and can be used to filter out particles larger than 5μm in drug solutions with a filtration rate of not less than 90%.
[0003] During clinical intravenous infusion, after purging the air from the infusion set, nurses need to use a flow regulator to clamp the infusion tubing before venipuncture to prevent any medication from flowing out. However, in currently used filter infusion sets, even after clamping the tubing with the flow regulator, the medication filter located at the lower end of the flow regulator has an exhaust channel that allows it to easily vent to the outside. Therefore, medication from the medication filter still flows out of the infusion set, which is inconvenient for nurses to perform venipuncture and causes waste.
[0004] The preceding description is intended to provide general background information and does not necessarily constitute prior art. Utility Model Content
[0005] The purpose of this invention is to provide a gyroscope-type self-venting medicine filter, which overcomes the defect of medicine leakage causing waste.
[0006] This utility model provides a gyroscope-type self-venting medicine filter, including an upper shell, a medicine filter membrane, an air filter membrane, and a lower shell; the upper end of the upper shell is provided with a liquid inlet and a vent hole, and the air filter membrane is provided on the vent hole; the lower end of the lower shell is provided with a liquid outlet; the upper opening of the lower shell is detachably connected to the lower opening of the upper shell, and the medicine filter membrane is disposed between the upper shell and the lower shell.
[0007] Furthermore, the upper shell includes an upper cover, a liquid inlet pipe, an upper collar, and an exhaust cap; a first opening and a second opening communicating with the interior are respectively provided on the upper cover, the liquid inlet pipe is connected to the first opening, the end of the liquid inlet pipe is provided with the liquid inlet, the upper collar is sleeved on the liquid inlet pipe, and the bottom of the upper collar is connected to the upper cover; the air filter membrane is covered on the second opening, the exhaust cap is connected to the second opening, and the exhaust hole is provided on the upper part of the exhaust cap.
[0008] Furthermore, the lower shell includes a lower cover, a liquid outlet pipe, and a lower end collar; the lower cover has a third opening communicating with the interior, the liquid outlet pipe is connected to the third opening, the lower end of the liquid outlet pipe has a liquid outlet, the lower end collar is sleeved on the liquid outlet pipe, and the bottom of the lower end collar is connected to the lower cover.
[0009] Furthermore, a first groove and a second groove are respectively provided on the inner wall of the lower opening of the upper cover, and an annular protrusion is provided at the upper opening of the lower cover; the upper surface of the lower cover is pressed on the first groove, the annular protrusion is pressed on the second groove, and the edge of the medicine filter membrane is pressed between the annular protrusion and the second groove.
[0010] Furthermore, a locking head is provided at the bottom of the first groove, and a locking slot is provided at the upper opening of the lower cover, with the locking head connected to the locking slot.
[0011] This utility model's gyro-type self-venting medication filter uses an air filter membrane to prevent liquid leakage while also venting gases generated during infusion, preventing these gases from entering the patient's body. The medication filter membrane filters out particles and impurities from the medication. During use, the medication enters through the inlet of the upper shell, is filtered by the medication filter membrane, and then flows out through the outlet of the lower shell. By setting an vent hole, the air inside the medication filter is vented, and the venting channel connecting the medication filter to the outside is sealed by the air filter membrane, overcoming the defect of medication leakage and waste. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of a gyro-type self-venting liquid filter provided in an embodiment of the present invention.
[0013] Figure 2 for Figure 1 A schematic diagram of the upper shell of a gyro-type self-venting liquid filter.
[0014] Figure 3 for Figure 1 A schematic diagram of the cross-sectional structure of the upper shell of a gyro-type self-venting liquid filter.
[0015] Figure 4 for Figure 1 A schematic diagram of the lower shell of a gyro-type self-venting liquid filter.
[0016] Figure 5 for Figure 1 A schematic diagram of the cross-sectional structure of the lower shell of a gyro-type self-venting liquid filter.
[0017] Figure 6 for Figure 1 A schematic diagram of the planar structure of a gyro-type self-venting liquid filter.
[0018] Figure 7 for Figure 1 A schematic diagram of the cross-sectional structure of a gyro-type self-venting liquid filter.
[0019] The reference numerals and components involved in the accompanying drawings are shown below:
[0020] 1. Upper shell 11. Liquid inlet 12. Vent hole
[0021] 13. Top cover 131. First opening 132. Second opening
[0022] 133. First groove; 134. Second groove; 135. Clip head.
[0023] 14. Liquid inlet pipe; 15. Upper end collar; 16. Vent cap
[0024] 2. Liquid filter membrane; 3. Air filter membrane; 4. Lower shell.
[0025] 41. Liquid outlet; 42. Lower cover; 421. Third opening
[0026] 422. Annular protrusion; 423. Bayonet; 43. Discharge tube
[0027] 44. Lower end collar Detailed Implementation
[0028] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.
[0029] The terms "first," "second," "third," "fourth," etc., used in the specification and claims of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.
[0030] Example 1
[0031] Figure 1 This is a schematic diagram of the structure of the gyro-type self-venting drug liquid filter provided in an embodiment of the present invention. Figure 2 for Figure 1 A schematic diagram of the upper shell structure of a gyro-type self-venting pharmaceutical filter. Figure 3 for Figure 1 A schematic diagram of the cross-sectional structure of the upper shell of a gyro-type self-venting liquid filter. Figure 4 for Figure 1 A schematic diagram of the lower shell structure of a gyro-type self-venting liquid filter. Figure 5 for Figure 1 A schematic diagram of the cross-sectional structure of the lower shell of a gyro-type self-venting liquid filter. Figure 6 for Figure 1 A schematic diagram of the planar structure of a gyro-type self-venting liquid filter. Figure 7 for Figure 1 A schematic diagram of the cross-sectional structure of a gyro-type self-venting liquid filter. Please refer to... Figure 1 , Figure 2 , Figure 3, Figure 4 , Figure 5 , Figure 6 , Figure 7 The gyro-type self-venting liquid filter provided in this embodiment includes an upper shell 1, a liquid filter membrane 2, an air filter membrane 3, and a lower shell 4. The upper shell 1 is provided with an inlet 11 and an exhaust port 12 at its upper end, and the air filter membrane 3 is provided on the exhaust port 12. The lower shell 4 is provided with an outlet 41 at its lower end. The upper opening of the lower shell 4 is detachably connected to the lower opening of the upper shell 1, and the liquid filter membrane 2 is disposed between the upper shell 1 and the lower shell 4.
[0032] It should be noted that the air filter membrane 3 is used to prevent liquid from flowing out, but it can also discharge the gas generated during the infusion process to prevent gas from being injected into the patient's body. The drug filter membrane 2 is used to filter particles and impurities in the drug solution.
[0033] The gyro-type self-venting drug filter of this utility model is used in which the drug enters through the inlet 11 of the upper shell 1, is filtered by the drug filter membrane 2, and then flows out through the outlet 41 of the lower shell 4.
[0034] This invention overcomes the waste caused by the outflow of medicine by setting an exhaust hole 12, which allows the air inside the medicine filter to be emptied, and then the exhaust channel connecting the medicine filter to the outside is sealed by an air filter membrane 3.
[0035] Further reference Figure 2 , Figure 3 The upper shell 1 of this utility model includes an upper cover 13, a liquid inlet pipe 14, an upper collar 15, and an exhaust cover 16. A first opening 131 and a second opening 132 communicating with the interior are respectively provided on the upper cover 13. The liquid inlet pipe 14 is connected to the first opening 131, and the end of the liquid inlet pipe 14 is provided with the liquid inlet 11. The upper collar 15 is sleeved on the liquid inlet pipe 14, and the bottom of the upper collar 15 is connected to the upper cover 13. The air filter membrane 3 is covered on the second opening 132, and the exhaust cover 16 is connected to the second opening 132. The exhaust hole 12 is provided on the upper part of the exhaust cover 16.
[0036] Further reference Figure 4 , Figure 5 The lower shell 4 of this utility model includes a lower cover 42, a liquid outlet pipe 43, and a lower end collar 44; the lower cover 42 has a third opening 421 communicating with the interior on its lower side, the liquid outlet pipe 43 is connected to the third opening 421, the lower end of the liquid outlet pipe 43 has a liquid outlet 41, the lower end collar 44 is sleeved on the liquid outlet pipe 43, and the bottom of the lower end collar 44 is connected to the lower cover 42.
[0037] Further reference Figure 3 , Figure 5 , Figure 7 The present invention provides a first groove 133 and a second groove 134 on the inner wall of the lower opening of the upper cover 13, and an annular protrusion 422 at the upper opening of the lower cover 42; the upper surface of the lower cover 42 is pressed on the first groove 133, the annular protrusion 422 is pressed on the second groove 134, and the edge of the medicine filter membrane 2 is pressed between the annular protrusion 422 and the second groove 134; a locking head 135 is provided at the bottom of the first groove 133, and a locking slot 423 is provided at the upper opening of the lower cover 42, and the locking head 135 is connected in the locking slot 423.
[0038] As can be seen from the above description, the advantages of this utility model are:
[0039] This utility model's gyro-type self-venting medication filter uses an air filter membrane to prevent liquid leakage while also venting gases generated during infusion, preventing these gases from entering the patient's body. The medication filter membrane filters out particles and impurities from the medication. During use, the medication enters through the inlet of the upper shell, is filtered by the medication filter membrane, and then flows out through the outlet of the lower shell. By setting an vent hole, the air inside the medication filter is vented, and the venting channel connecting the medication filter to the outside is sealed by the air filter membrane, overcoming the defect of medication leakage and waste.
[0040] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. A gyroscope-type self-venting pharmaceutical liquid filter, characterized in that, It includes an upper shell (1), a liquid filter membrane (2), an air filter membrane (3), and a lower shell (4); The upper shell (1) is provided with a liquid inlet (11) and a vent (12) at its upper end. The air filter membrane (3) is provided on the vent (12). The lower shell (4) is provided with a liquid outlet (41) at its lower end. The upper opening of the lower shell (4) is detachably connected to the lower opening of the upper shell (1), and the liquid filter membrane (2) is provided between the upper shell (1) and the lower shell (4).
2. The gyro-type self-venting liquid filter according to claim 1, characterized in that, The upper shell (1) includes an upper cover (13), an inlet pipe (14), an upper end collar (15), and an exhaust cover (16); The top cover (13) is provided with a first opening (131) and a second opening (132) communicating with the interior. The first opening (131) is connected to the liquid inlet pipe (14). The end of the liquid inlet pipe (14) is provided with the liquid inlet (11). The upper end collar (15) is sleeved on the liquid inlet pipe (14). The bottom of the upper end collar (15) is connected to the top of the top cover (13). The air filter membrane (3) is covered on the second opening (132), the exhaust cover (16) is connected to the second opening (132), and the exhaust hole (12) is provided on the top of the exhaust cover (16).
3. The gyro-type self-venting liquid filter according to claim 2, characterized in that, The lower shell (4) includes a lower cover (42), a liquid outlet pipe (43), and a lower end collar (44); The lower cover (42) has a third opening (421) communicating with the interior. The third opening (421) is connected to the liquid outlet pipe (43). The lower end of the liquid outlet pipe (43) has a liquid outlet (41). The lower end collar (44) is sleeved on the liquid outlet pipe (43). The bottom of the lower end collar (44) is connected to the lower cover (42).
4. The gyro-type self-venting liquid filter according to claim 3, characterized in that, A first groove (133) and a second groove (134) are respectively provided on the inner wall of the lower opening of the upper cover (13), and an annular protrusion (422) is provided at the upper opening of the lower cover (42). The upper end face of the lower cover (42) is pressed on the first groove (133), the annular protrusion (422) is pressed on the second groove (134), and the edge of the liquid filter membrane (2) is pressed between the annular protrusion (422) and the second groove (134).
5. The gyro-type self-venting liquid filter according to claim 4, characterized in that, A locking head (135) is provided at the bottom of the first groove (133), and a locking slot (423) is provided at the upper opening of the lower cover (42), with the locking head (135) connected in the locking slot (423).