Pneumatic continuous needle-free syringe adopting control of pneumatically-controlled slide column valve

A needle-free syringe and valve control technology, applied in the field of syringes, can solve the problems of increased manufacturing cost, inconvenient use, low yield, etc., and achieve the effects of rapid firing, automatic firing, rapid firing, and effective control of yield

Active Publication Date: 2015-03-11
武汉市正华精机技术发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 3. Because the plunger pump body is an integral structure, the yield of the production process is not high, thereby increasing the manufacturing cost
[0006] 4. Poor repeatability of multiple injections
[0007] 5. It is inconvenient to use, and sometimes the liquid medicine is wasted due to misfiring

Method used

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  • Pneumatic continuous needle-free syringe adopting control of pneumatically-controlled slide column valve
  • Pneumatic continuous needle-free syringe adopting control of pneumatically-controlled slide column valve
  • Pneumatic continuous needle-free syringe adopting control of pneumatically-controlled slide column valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] The pneumatic continuous needle-free injector controlled by the air control spool valve provided in Example 1 has a structure such as Figure 1 to Figure 21 As shown, there is a main body, a pilot valve and an air control spool valve, wherein the main body includes a power source, a liquid medicine storage device, a cylinder block assembly 2, an air storage tank 1, a liquid plunger pump, a microporous jet nozzle 9, and a ring 13 , trigger and handle. Except for the power air source, all other components are integrated and installed on the cylinder block assembly 2 to form an integrated pneumatic continuous needle-free injector controlled by a hand-held air control spool valve.

[0064] The pilot valve is a two-position three-way valve controlled by manpower. Through manual control, its conduction state is changed to inflate or deflate the front end or rear end of No. 1 spool 60 or No. 2 spool 74 . No. 1 pilot valve can be used ( Figure 7 , Figure 14 , Figure 18 )...

Embodiment 2

[0091] The pneumatic continuous needle-free injector controlled by the air-operated spool valve provided in Embodiment 2 is provided with a No. 1 pilot valve, a No. 1 air-operated spool valve, and a main body with the same structure as in Embodiment 1. details as follows:

[0092] See Figure 7 , Figure 14 , Figure 18 , there are internal threads at the front and rear ends of the control valve housing 29, and the internal threads at the rear end of the control valve housing 29 are connected with the external threads of the No. 1 control valve plug screw 65, so that the No. 1 control valve plug screw 65 is installed At the rear end of the valve housing 29, the No. 1 control valve plugging screw 65 is provided with a No. 1 control valve plugging screw air hole 66 which communicates with the atmosphere.

[0093] See Figure 18 , Figure 19 , the No. 1 pilot valve can be composed of: No. 1 pilot valve housing 84, No. 1 pilot valve body 83, No. 1 pilot valve spring 86, No. ...

Embodiment 3

[0128] The pneumatic continuous needle-free injector controlled by the air control spool valve provided in Example 3 is provided with a No. 2 pilot valve, a No. 2 air control spool valve, a No. 2 trigger 16, and a No. 2 handle 17, which are different in structure from that of Example 2. , No. 2 trigger return spring 69, No. 2 handle return spring 78, and other main parts with the same structure as in Embodiment 1. details as follows:

[0129] See Figure 7 , Figure 16 , there are internal threads at the front and rear ends of the control valve housing 29, the internal threads at the front end of the control valve housing 29 are connected with the external threads of the No. 2 control valve plugging screw 71, and the No. sealed.

[0130] See Figure 20 , the No. 2 pilot valve can be composed of: No. 2 pilot valve housing 100, No. 2 pilot valve spring seat 98, No. 2 pilot valve body 104, No. 2 pilot valve spool 109, garden head nut 88, No. 2 pilot valve Pilot valve spring...

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PUM

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Abstract

The invention relates to a pneumatic continuous needle-free syringe adopting control of a pneumatically-controlled slide column valve. The pneumatic continuous needle-free syringe comprises a main body part, a pilot valve and the pneumatically-controlled slide column valve, wherein the pneumatically-controlled slide column valve is arranged in a control valve casing (29) of the main body part, the pilot valve is triggered to control compressed air to drive the pneumatically-controlled slide column valve, and an air cylinder is driven by the pneumatically-controlled slide column valve to drive a plunger pump to pressurize a medicine liquor. When the pilot valve is triggered by a trigger, the quick shooting is realized; when the pilot valve is triggered by a handle, the quick shooting and automatic shooting are realized. The pneumatic continuous needle-free syringe has the characteristics that the shooting is quick, the flow jetting parameter is stable, the continuous transfusion repetitiveness is good, and the safety and reliability in use are realized; the medicine liquor can be accurately, quantitatively and quickly transfused into bodies of people and animals in a high pressure liquid column jetting way; when the people and the animals are transfused, the transfusion is completed through automatic shooting when a microporous jetting spray head is in effective contact with the people and animals and is in certain pressing state.

Description

technical field [0001] The invention relates to a syringe, in particular to a continuous needle-free syringe which uses an air-operated spool valve to control a cylinder to drive a plunger pump to pressurize a drug solution. , Pneumatic needle-free injector that can work continuously. Background technique [0002] The current continuous needle-free syringe with similar functions uses a manual valve to control the cylinder to drive the plunger pump to pressurize the drug solution. Jet flow parameters are unstable, and the repeatability of multiple injections is poor, especially when injecting animals. Due to the slow firing of the manual valve, the injected receptors do not cooperate and are easy to move, making the injection operation difficult. In addition, there are following defects due to structural problems: [0003] 1. Because the valve body integrated with the cylinder body is used, the manufacturing process of the sealing surface of the spool valve seat is relative...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/303A61M5/20A61M5/31A61D7/00
CPCA61D7/00A61M5/20A61M5/30A61M5/31A61M2005/2006
Inventor 肖雅俊肖长正
Owner 武汉市正华精机技术发展有限公司
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