Medical one-way valve
By designing a medical check valve containing a valve shell and elastic components, the problem of insufficient adaptability of existing medical check valves is solved, effective control of fluids of different viscosity and chemical properties is achieved, and versatility is improved.
Patent Information
- Application Number
- CN202422110971.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-29
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-08-29
AI Technical Summary
The existing medical check valves have limited adaptability to fluids and cannot adapt to medical fluids of different viscosity and chemical properties. They are prone to clogging or poor sealing, which limits their wide application in the medical field.
A medical one-way valve is designed, including a valve housing, an elastic assembly and an L-shaped filter plate. The one-way control of the fluid is achieved through the coordination of the elastic assembly, and the combination of the rubber mold and the baffle is used to prevent countercurrent and adapt to fluids of different viscosity and chemical properties.
It improves the versatility of the one-way valve, can play a good one-way control role in different medical scenarios such as blood, medicine liquid, tissue liquid or gas, and reduces the demand for a variety of one-way valves.
Smart Images
Figure CN223127090U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical devices, and particularly relates to a medical one-way valve. Background Technique
[0002] A medical one-way valve is a one-way valve used in the medical field, mainly used to control the one-way flow of fluids in medical devices or pipelines to prevent fluid backflow or reflux, avoiding cross-infection and other potential risks. In clinical work, it is often necessary to extract fluids or gases from the human body. In order to prevent the extracted fluids or gases from flowing back into the body, a fluid one-way valve is required to ensure that the fluid can only flow in one direction and cannot flow back.
[0003] The existing medical one-way valves have limited adaptability to fluids. Different medical fluids may have different chemical properties and viscosities, and they cannot well adapt to all types of fluids. There may be situations of blockage or poor sealing, so they can only be used in specific fluid environments, which greatly limits their wide application in the medical field. To solve this technical problem, the utility model proposes a medical one-way valve. Summary of the Utility Model
[0004] (1) Technical Problem to be Solved
[0005] The existing medical one-way valves have limited adaptability to fluids. Different medical fluids may have different chemical properties and viscosities, and they cannot well adapt to all types of fluids. There may be situations of blockage or poor sealing, so they can only be used in specific fluid environments, which greatly limits their wide application in the medical field. To solve this technical problem, the utility model proposes a medical one-way valve.
[0006] (2) Technical Solution
[0007] To achieve the above objectives, the utility model is realized through the following technical solutions: A medical one-way valve includes a valve housing. One end of the valve housing is provided with a front-end fluid passage, and the other end of the valve housing is provided with a rear-end fluid passage. Moreover, an accommodation cavity is also provided inside the valve housing. An elastic component is arranged inside the accommodation cavity opened in the valve housing. The elastic component includes a first support column, a second support column, and a return spring. One end of the second support column is slidably connected to the inside of the first support column, and at the same time, the return spring is arranged on the outer diameters of the first support column and the second support column.
[0008] Preferably, two mounting blocks are fixedly installed on the inner diameter of the valve housing, and an L-shaped filter plate is fixedly installed on the outer side of one side of the two mounting blocks.
[0009] Preferably, the left side of the L-shaped filter plate is fixed to the other end of the first support column, and the left side of the L-shaped filter plate is also fixed to one end of the return spring.
[0010] Preferably, a linkage plate is fixedly connected to the other end of the second support column and the return spring. At the same time, a rubber mold is arranged on the outer left side of the linkage plate.
[0011] Preferably, two baffle plates are arranged on the left side of the linkage plate and the rubber mold, and the two baffle plates are fixedly installed on the inner diameter of the valve housing.
[0012] Preferably, mounting bolts are arranged on the outer diameters of the front-end fluid passage and the rear-end fluid passage, and threaded grooves are formed inside the two mounting bolts.
[0013] (III) Beneficial effects
[0014] The present utility model provides a medical one-way valve. It has the following beneficial effects:
[0015] (1) In the present utility model, through the mutual cooperation among the mounting block, the L-shaped filter plate, the first support column, the second support column, the return spring, the linkage plate, the rubber mold, and the baffle plate, it can better adapt to medical fluids with different viscosities and chemical properties and can be used in various different medical scenarios. Whether it is dealing with blood, medicine liquid, tissue fluid or gas, it can play a good one-way control role, which will greatly improve the versatility of the one-way valve and reduce the need of medical institutions for various different types of one-way valves. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;
[0017] Figure 2 is a schematic diagram of the overall side structure of the present utility model;
[0018] Figure 3 is a schematic diagram of the structure of the valve housing of the present utility model;
[0019] Figure 4 is a schematic diagram of the structure of the return spring of the present utility model.
[0020] In the figure: 1, valve housing; 2, front-end fluid passage; 3, rear-end fluid passage; 4, accommodation cavity; 5, mounting block; 6, L-shaped filter plate; 7, first support column; 8, second support column; 9, return spring; 10, linkage plate; 11, rubber mold; 12, baffle plate; 13, mounting bolt; 14, threaded groove. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model.
[0022] Please refer to Figures 1-4 , the present utility model provides a technical solution:
[0023] Embodiment 1: A medical one-way valve includes a valve housing 1. The valve housing 1 provides overall structural support and protection, enclosing the internal components in a relatively stable space to prevent external factors from interfering with normal operation. One end of the valve housing 1 is provided with a front-end fluid passage 2, and the front-end fluid passage 2 is the inlet passage for fluid to enter the one-way valve. The other end of the valve housing 1 is provided with a rear-end fluid passage 3, and the rear-end fluid passage 3 serves as the outlet passage for the fluid. Moreover, an accommodation cavity 4 is also provided inside the valve housing 1 to provide installation and movement space for other components inside the one-way valve. An elastic component is provided inside the accommodation cavity 4 opened in the valve housing 1. The elastic component includes a first support column 7, a second support column 8, and a return spring 9. One end of the second support column 8 is slidably connected to the inside of the first support column 7, and the cooperation between the second support column 8 and the first support column 7 realizes the effect of a damping rod and the effect of reset. At the same time, the return spring 9 is arranged on the outer diameters of the first support column 7 and the second support column 8, and the cooperation between the return spring 9, the first support column 7, and the second support column 8 realizes the functions of buffering and reset.
[0024] Embodiment 2: The difference between this embodiment and Embodiment 1 is that two mounting blocks 5 are fixedly installed on the inner diameter of the valve housing 1 to connect and fix other components through the mounting blocks 5. And on one side of the outside of the two mounting blocks 5, an L-shaped filter plate 6 is fixedly installed. The L-shaped design helps to improve the flow stability of the fluid. The left side of the L-shaped filter plate 6 is fixedly connected to the other end of the first support column 7, and they are tightly connected to each other. And the left side of the L-shaped filter plate 6 is also fixedly connected to one end of the return spring 9, and they are tightly connected to each other. The other end of the second support column 8 and the return spring 9 are fixedly connected to a linkage plate 10. The right displacement of the linkage plate 10 is realized by the fluid pressing on the linkage plate 10, and at the same time, the left displacement of the linkage plate 10 also prevents the backflow of the fluid. At the same time, a rubber mold 11 is arranged on the left side of the outside of the linkage plate 10. When the fluid flows forward, the rubber mold 11 deforms under the action of the fluid pressure and then cooperates with the linkage plate 10 to allow the fluid to pass through; while when the fluid flows backward, the rubber mold 11 closely adheres to the baffle 12 to prevent the backflow of the fluid. Two baffles 12 are arranged on the left side of the linkage plate 10 and the rubber mold 11 to block the linkage plate 10 and the rubber mold 11 through the baffles 12. And the two baffles 12 are fixedly installed on the inner diameter of the valve housing 1 and are tightly connected to each other. Installation bolts 13 are arranged on the outer diameters of the front-end fluid passage 2 and the rear-end fluid passage 3 to facilitate installation through the installation bolts 13. And threaded grooves 14 are opened inside the two installation bolts 13 to facilitate quick connection through the opened threaded grooves 14.
[0025] Working principle: In actual use, the device first needs to be stably installed through the mounting bolts 13 at both ends of the valve housing 1. Threaded grooves 14 are provided inside both mounting bolts 13, and the threaded grooves 14 facilitate installation. Subsequently, the fluid enters from the direction of the front fluid passage 2 and flows towards the rubber mold 11 and the linkage plate 10. Due to the input pressure of the liquid, the return spring 9 will be compressed. Inside the return spring 9, there are also a first support column 7 and a second support column 8. At the same time, the second support column 8 slides inside the first support column 7. Subsequently, the linkage plate 10 and the rubber mold 11 will move to the right. At this time, the fluid will flow through the accommodation cavity 4 and the L-shaped filter plate 6 and flow to the right. At the same time, the rubber mold 11 is made of medical silicone with high chemical stability, corrosion resistance, and anti-aging properties. The surface of the selected rubber mold 11 is treated to enhance its anti-adhesion property, reduce the attachment of impurities in different fluids, and improve the sealing performance and service life. Finally, it flows out through the rear fluid passage 3. When the liquid flows back, due to the restoring force between the first support column 7, the second support column 8, and the return spring 9, the linkage plate 10 and the rubber mold 11 will move to the left. At the same time, the linkage plate 10 and the rubber mold 11 will move to the positions of two baffles 12 on the inner diameter of the valve housing 1. The linkage plate 10 and the rubber mold 11 are limited by the two baffles 12, thereby achieving the blocking of the fluid and the effect of preventing backflow. Through this technical solution, it can better adapt to medical fluids with different viscosities and chemical properties and can be used in various different medical scenarios. Whether it is dealing with blood, medicine, tissue fluid, or gas, it can play a good one-way control role, which will greatly improve the versatility of the one-way valve and reduce the need for medical institutions for multiple different types of one-way valves.
[0026] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.
Claims
1. A medical one-way valve, characterized in that: It includes a valve housing (1). One end of the valve housing (1) is provided with a front-end fluid passage (2), and the other end of the valve housing (1) is provided with a rear-end fluid passage (3). Moreover, an accommodation cavity (4) is also provided inside the valve housing (1). An elastic component is provided inside the accommodation cavity (4) opened in the valve housing (1). The elastic component includes a first support column (7), a second support column (8) and a return spring (9). One end of the outer diameter of the second support column (8) is slidably connected inside the first support column (7), and at the same time, the return spring (9) is arranged on the outer diameters of the first support column (7) and the second support column (8).
2. The medical one-way valve according to claim 1, characterized in that: Two mounting blocks (5) are fixedly installed on the inner diameter of the valve housing (1), and an L-shaped filter plate (6) is fixedly installed on the outer side of the two mounting blocks (5).
3. The one-way valve for medical use according to claim 2, wherein: The left side of the L-shaped filter plate (6) is fixed to the other end of the first support column (7), and the left side of the L-shaped filter plate (6) is also fixed to one end of the return spring (9).
4. A medical one-way valve according to claim 1, characterized in that: The other end of the second support column (8) and the return spring (9) are fixedly connected to a linkage plate (10), and at the same time, a rubber mold (11) is arranged on the left side of the outer part of the linkage plate (10).
5. The medical one-way valve according to claim 4, characterized in that: Two baffles (12) are arranged on the left side of the linkage plate (10) and the rubber mold (11), and the two baffles (12) are fixedly installed on the inner diameter of the valve housing (1).
6. The medical one-way valve according to claim 1, wherein: Mounting bolts (13) are arranged on the outer diameters of the front-end fluid passage (2) and the rear-end fluid passage (3), and threaded grooves (14) are opened inside the two mounting bolts (13).