Pressure control system for a pressurized device

Abstract

The utility model belongs to the technical field of medical equipment, especially for the pressure control system of pressurizing equipment, including pressure detection unit and control module, the output of pressure detection unit is electrically connected with the input of control module, the output of control module is electrically connected with the input of pressurizing equipment, pressure detection unit includes the pressure sensor of being located in the output one side of conveying catheter, when having liquid flow in conveying catheter, the pressure sensor is caused pressure to make the pressure sensor detectable pressure change. The utility model can make the pressure value in conveying catheter keep to target pressure value, thereby ensure that atomization treatment process can satisfy the required atomization effect, and keep this atomization effect all the time, guarantee that pressurized atomization treatment effect is best.

Description

Technical Field

[0001] This utility model relates to the field of medical equipment technology, specifically to a pressure control system for pressurization equipment. Background Technology

[0002] A pressurized nebulizer is a medical device that atomizes drug solutions, emulsions, or suspensions into tiny particles and delivers them to the affected area (such as a tumor). Its nebulization principle primarily relies on a peristaltic pump (or other pressurizing device) to pressurize the drug solution, which is then sprayed onto the tumor through a specially designed nozzle.

[0003] However, neither pressurizing equipment nor peristaltic pumps can maintain a constant liquid pressure. If the pressure is unstable during nebulization treatment, it will affect the nebulization effect and thus the quality of nebulization.

[0004] Therefore, this technical solution proposes a pressure control system for pressurization equipment that can maintain stable atomization effect. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a pressure control system for pressurization equipment, which solves the problem of unstable liquid delivery pressure that easily occurs during existing pressurized nebulization therapy.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pressure control system for a pressurizing device, comprising a pressure detection unit and a control module, wherein the output terminal of the pressure detection unit is electrically connected to the input terminal of the control module, and the output terminal of the control module is electrically connected to the input terminal of the pressurizing device; The pressure detection unit includes a pressure sensor located on the output side of the delivery conduit. When liquid flows through the delivery conduit, it causes pressure to the pressure sensor, enabling the pressure sensor to detect pressure changes.

[0007] Preferably, it also includes an input module, the output of which is electrically connected to the input of the control module.

[0008] Preferably, the pressure detection unit further includes a pressure transmission part that is slidably connected between the pressure sensor and the delivery conduit.

[0009] Preferably, there are at least two pressure sensors and corresponding pressure transmission parts.

[0010] Preferably, the pressure sensor includes a Wheatstone bridge.

[0011] Preferably, the pressure detection unit further includes a housing, and the pressure sensor and the pressure transmission part are both disposed inside the housing.

[0012] Preferably, the pressure detection unit further includes a pressure output mechanism disposed on the delivery conduit, including a housing that communicates with the delivery conduit and a piston disposed inside the housing. When liquid flows in the delivery conduit, the liquid pressure drives the piston to squeeze the pressure sensor.

[0013] Preferably, the surface of the housing is sealed with a membrane to replace the piston.

[0014] The outer shell and the delivery conduit are integrally formed.

[0015] Preferably, it also includes a delivery conduit for the pressurizing device, comprising a conduit body and a clamp on the conduit body, the clamp engaging with the surface of the pressurizing device to secure the conduit body.

[0016] Preferably, it also includes a pressurizing device and a machine base, wherein the machine base is respectively provided with a slot for matching the clip and a groove for matching the pressure detection unit.

[0017] Compared with the prior art, the present invention provides a pressure control system for pressurizing equipment, which has the following advantages: The pressure control system for the pressurization equipment ensures that the pressure in the delivery tubing is maintained at the target pressure value, thereby ensuring that the required nebulization effect is met during nebulization treatment and maintaining this nebulization effect to guarantee the best effect of pressurized nebulization treatment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall assembly structure of the pressure detection unit in the pressure control system used in pressurization equipment. Figure 2 This is the control flow diagram of the pressure control system used in the pressurization equipment; Figure 3 This is an exploded structural diagram of the pressure detection unit in the pressure control system of this pressurization equipment; Figure 4 This is an exploded structural diagram of the pressure detection unit in the pressure control system of the pressurization equipment from another perspective, mainly showing the piston; Figure 5 This is a schematic diagram of the exploded structure of the pressure detection unit in this pressure control system from another perspective, mainly showing the membrane; Figure 6 This is a three-dimensional structural diagram of the machine tool, mainly showing the slots and grooves; Figure 7 This is a three-dimensional structural diagram of the pressurizing equipment.

[0019] In the picture: 1. Pressure detection unit; 11. Pressure sensor; 12. Pressure transmission part; 13. Encapsulation shell; 14. Pressure output mechanism; 141. Housing; 142. Piston; 143. Diaphragm; 2. Control module; 3. Input module; 31. Touch screen; 4. Delivery catheter; 41. Catheter body; 42. Clamp; 5. Machine base; 51. Slot; 52. Groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1: Please see Figure 1-2 The present invention provides the following technical solution: a pressure control system for a pressurizing device, comprising a pressure detection unit 1 and a control module 2, wherein the output end of the pressure detection unit 1 is electrically connected to the input end of the control module 2, and the output end of the control module 2 is electrically connected to the input end of the pressurizing device; The pressure detection unit 1 includes a pressure sensor 11 located on the output side of the delivery conduit 4. When liquid flows in the delivery conduit 4, it causes pressure to the pressure sensor 11, so that the pressure sensor 11 can detect the pressure change.

[0022] As an optional implementation of this utility model, a target pressure value is preset for the control module 2 before nebulization treatment to determine the nebulization effect required for the nebulization treatment process. After the liquid is pressurized by the pressurizing device, it flows into the output end of the delivery conduit 4. At this time, the pressure change of the liquid will apply pressure to the pressure sensor 11, so that the pressure sensor 11 can sense the pressure change of the liquid in the delivery conduit 4 and detect the pressure value in the delivery conduit 4. If the detected pressure value is lower or higher than the target pressure value, the control module 2 outputs an electrical signal to control the pressurizing device to accelerate or decelerate, so that the pressure value in the delivery conduit 4 is adjusted to the target pressure value, thereby ensuring that the required nebulization effect can be met during the nebulization treatment and maintaining this nebulization effect to ensure the best effect of pressurized nebulization treatment.

[0023] The above structure ensures that the pressure in the delivery catheter 4 is maintained at the target pressure value, thereby ensuring that the required nebulization effect is met during nebulization treatment and that this nebulization effect is maintained, thus guaranteeing the best effect of pressurized nebulization treatment.

[0024] like Figure 2 As shown, it also includes an input module 3, the output of which is electrically connected to the input of the control module 2.

[0025] As an optional implementation of this utility model, it is convenient to pre-input the target pressure value, thereby facilitating the setting of the desired atomization effect.

[0026] Preferably, control module 2 can adopt the following... Figure 7 The touchscreen 31 shown.

[0027] As an optional implementation of this utility model, since the particle size varies under different pressure conditions, but medical staff cannot observe the nebulization quality inside the body, the touch screen 31 can display the pressure value in real time, allowing medical staff to understand the nebulized particle size and thus the real-time nebulization quality, and also facilitates the input of the target pressure value.

[0028] like Figure 3 As shown, the pressure detection unit 1 also includes a pressure transmission part 12 that is slidably connected between the pressure sensor 11 and the delivery conduit 4.

[0029] As an optional embodiment of this utility model, the pressure transmission part 12 can transmit the pressure change of the delivery conduit 4 to the sensor. Therefore, in the actual detection process, the pressure sensor 11 does not need to directly detect the pressure value. It also provides a tighter assembly, avoiding the pressure change sensed by the pressure sensor 11 due to the shaking of the delivery conduit 4, which would affect the pressure detection accuracy.

[0030] like Figure 3 As shown, there are at least two pressure sensors 11 and corresponding pressure transmission parts 12.

[0031] As an optional implementation of this utility model, each pressure sensor 11 corresponds to a pressure transmission part 12. Its main function is to avoid the detection accuracy being affected by the different micro-deformations generated at different surfaces of the delivery conduit 4. Therefore, setting at least two detection points can perform compensation calculations to improve the detection accuracy.

[0032] like Figure 3 As shown, pressure sensor 11 includes a Wheatstone bridge.

[0033] As an optional implementation of this utility model, the Wheatstone bridge is a device that can sense very small pressure values. It is particularly suitable for detecting micro-deformation on the surface of the infusion tubing in this technical solution. Furthermore, this method can directly output an electrical signal of the pressure value, which is fast and the detection value is very accurate, making the atomization effect more stable.

[0034] like Figure 3 As shown, the pressure detection unit 1 also includes a housing 13, and the pressure sensor 11 and the pressure transmission part 12 are both disposed inside the housing 13.

[0035] As an optional implementation of this utility model, the encapsulation shell 13 integrates the pressure sensor 11 and the pressure transmission part 12 into one unit, forming a modular structure that is easy to disassemble, install, debug and perform other operations.

[0036] like Figure 3-4 As shown, the pressure detection unit 1 also includes a pressure output mechanism 14 disposed on the delivery conduit 4, including a housing 141 that communicates with the delivery conduit 4 and a piston 142 disposed in the housing 141. When there is liquid flowing in the delivery conduit 4, the liquid pressure drives the piston 142 to squeeze the pressure sensor 11.

[0037] As an optional implementation of this utility model, compared with directly obtaining the liquid pressure value by detecting the micro-deformation of the infusion tubing, this pressure output mechanism 14 reflects the actual pressure change by the change of the liquid pressure on the piston 142. It has the advantages of a larger contact area, thus ensuring lower loss in the force transmission process, and more accurate detected pressure value.

[0038] like Figure 3 As shown, the outer shell 141 and the delivery conduit 4 are integrally formed.

[0039] As an optional implementation of this utility model, the one-piece molding method means that the delivery catheter 4 does not need to be assembled during actual treatment, so it will not generate more non-treatment operations, thus saving treatment time, and it is also difficult to generate leakage problems and thus avoid various effects.

[0040] Example 2: The difference compared to Example 1 is as follows: like Figure 5 As shown, a membrane 143 is sealed to the surface of the housing 141 to replace the piston 142 in Embodiment 1.

[0041] As an optional implementation of this utility model, since the piston 142 needs to be sealed, usually by a damped annular sealing ring, the actual pressure value will have a certain deviation. Therefore, the method of using the diaphragm 143 to reflect the actual liquid pressure change requires additional compensation calculations to achieve a more accurate pressure detection purpose. Moreover, the structure is simpler and the production cost is lower.

[0042] Example 3: Please see Figure 4-6It also includes a delivery conduit for the pressurizing equipment, including a conduit body 41 and a clip 42 on the conduit body 41, the clip 42 engaging with the surface of the pressurizing equipment to secure the conduit body 41.

[0043] As an optional implementation of this utility model, the use of clip 42 allows the delivery conduit 4 to be fixed on the pressurizing equipment. It not only prevents the delivery conduit 4 from moving randomly during the pressurization process, thus affecting the pressurization efficiency, but also prevents the delivery conduit 4 from being radially and / or axially offset due to inaccurate positioning during the pressure detection process, thus affecting the accuracy of the pressure detection.

[0044] Example 4: Please see Figure 7 It also includes a pressurizing device and a machine base 5, which is provided with a slot 51 for matching the clip and a groove 52 for matching the pressure detection unit 1.

[0045] As an optional implementation of this utility model, the slot 51 and the groove 52 make it more convenient to install and remove the delivery conduit 4 and the pressure detection unit 1 on the pressurizing equipment.

[0046] The working principle and usage process of this utility model are as follows: Before nebulization therapy, a target pressure value is preset in the control module 2 to determine the nebulization effect required for the nebulization therapy process; after the liquid is pressurized by the pressurizing device, it flows into the output end of the delivery conduit 4. At this time, the pressure change of the liquid will apply pressure to the pressure sensor 11, so that the pressure sensor 11 can sense the pressure change of the liquid in the delivery conduit 4 and detect the pressure value in the delivery conduit 4; if the detected pressure value is lower or higher than the target pressure value, the control module 2 outputs an electrical signal to control the pressurizing device to accelerate or decelerate, so that the pressure value in the delivery conduit 4 is adjusted to the target pressure value, thereby ensuring that the required nebulization effect can be met during the nebulization therapy process and maintaining this nebulization effect to ensure the best effect of pressurized nebulization therapy.

[0047] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A pressure control system for a pressurizing device, comprising a pressure detection unit and a control module, wherein the output terminal of the pressure detection unit is electrically connected to the input terminal of the control module, and the output terminal of the control module is electrically connected to the input terminal of the pressurizing device, characterized in that: The pressure detection unit includes a pressure sensor located on the output end side of the delivery conduit. When liquid flows in the delivery conduit, it causes pressure to the pressure sensor, enabling the pressure sensor to detect pressure changes. The pressure detection unit also includes a pressure transmission part that is slidably connected between the pressure sensor and the delivery conduit; The pressure detection unit also includes a pressure output mechanism disposed on the delivery conduit, including a housing that communicates with the delivery conduit and a piston disposed inside the housing. When liquid flows in the delivery conduit, the liquid pressure drives the piston to squeeze the pressure sensor.

2. The pressure control system for pressurizing equipment according to claim 1, characterized in that, It also includes an input module, the output of which is electrically connected to the input of the control module.

3. The pressure control system for pressurizing equipment according to claim 1, characterized in that, The pressure sensor and the corresponding pressure transmission part are provided in at least two.

4. The pressure control system for pressurizing equipment according to claim 1, characterized in that, The pressure detection unit also includes a housing, and the pressure sensor and pressure transmission part are both located inside the housing.

5. The pressure control system for pressurizing equipment according to claim 1, characterized in that, The surface of the outer casing is sealed with a membrane to replace the piston.

6. The pressure control system for a pressurizing device according to claim 1, characterized in that, The outer shell and the delivery conduit are integrally formed.

7. The pressure control system for a pressurizing device according to any one of claims 1-6, characterized in that, It also includes a delivery conduit for a pressurizing device, comprising a conduit body and a clamp on the conduit body, the clamp engaging with the surface of the pressurizing device to secure the conduit body.

8. The pressure control system for a pressurizing device according to claim 7, characterized in that, It also includes a pressurizing device and a machine base, wherein the machine base is provided with a slot for matching the clip and a groove for matching the pressure detection unit.

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