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Adjustable positive and negative pressure conversion sealing filtering device

A filtering device, positive and negative pressure technology, applied in the direction of blood transfusion equipment, drug equipment, hypodermic injection equipment, etc., can solve the problems of supply difficulties, social burden, etc., and achieve the effect of simple and fast conversion, simple and fast separation

Pending Publication Date: 2018-04-17
德州健洁医疗器械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, clinical blood mainly comes from blood banks, and the supply of blood sources is becoming increasingly tight, especially the supply of rare blood types is more difficult. Cross-transmission may occur through blood transfusion. Infections caused by blood transfusion at home and abroad, including window period blood transfusion-transmitted virus accidents, are too numerous to enumerate. They are shocking, bring endless pain to patients, and also impose a heavy burden on society.

Method used

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  • Adjustable positive and negative pressure conversion sealing filtering device
  • Adjustable positive and negative pressure conversion sealing filtering device
  • Adjustable positive and negative pressure conversion sealing filtering device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] This implementation provides an adjustable tie rod sealing device as a gas passage, refer to figure 1 , said pull rod sealing device is made up of pull rod, support, spring and storage tank four parts. In this embodiment, the appearance and size of the pull rod and the support storage tank are only schematic, and the appearance and size shown therein do not constitute a limitation to the appearance and size of the parts of the invention patent.

[0037] The pull rod of this embodiment adopts a structural design different from that of traditional storage tanks, refer to figure 2 , the tie rod can be pulled up by other external parts, the surface of the tie rod is provided with longitudinal grooves and transverse grooves, the longitudinal grooves are used as channels for gas to flow through, and the transverse grooves are used as sealing rings for gas passages to ensure the positive and negative pressure of the storage tank Sealing under certain conditions; multiple ven...

Embodiment 2

[0049] This embodiment provides a practical application method of the positive and negative pressure conversion sealing filter device. In this embodiment, the upper part of the bracket fixes the battery, motor, crankshaft, vacuum pump, one-way valve, air bag, tee and micro-current switch respectively. Modules and other components, see Figure 4 . When in use, the reciprocating motion of the crank and crankshaft can be controlled by the control switch module and the motor to drive the vacuum pump. The airtight storage tank is connected to the vacuum pump through a hose, thereby forming a negative pressure inside the storage tank and achieving the effect of negative pressure sealing.

Embodiment 3

[0051] This embodiment provides another practical application method of the positive and negative pressure conversion sealing filter device. In this embodiment, the bracket can be embedded with a filter and a filter membrane, and a sealing ring is used between the filter and the bracket to achieve a sealing effect, and the gas The filter membrane on the filter enters and exits the storage tank. The filtering effect of the filter membrane ensures that the internal environment of the storage tank is not polluted by the outside air. Please refer to Figure 5 .

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Abstract

The invention discloses an adjustable positive and negative pressure conversion sealing filtering device. Sealing under the sealing condition and positive and negative pressure conversion can be achieved. The adjustable positive and negative pressure conversion sealing filtering device is composed of a pull rod, a support, a spring, a storage tank and the like. Longitudinal grooves are formed in the pull rod so that gas can pass, a transverse groove is formed between the longitudinal grooves in the pull rod so that a sealing ring can be assembled, the support is provided with a channel throughwhich the pull rod runs, a pipeline is provided with a vent hole so that gas can pass, the support can be in sealing fit with the storage tank through a sealing ring, a spring sleeve is arranged in an interval between the support channel and the outer surface of the pull rod, two pipe openings at the bottom of the storage tank are connected with an input guide pipe and an output guide pipe respectively and are adopted as channels through which liquid enters and exits from the storage tank, a filter net is arranged on the outer side of the input guide pipe opening, and input liquid achieves the filtering effect while passing through the filter net.

Description

Technical field [0001] The patent of the present invention relates to an adjustable positive and negative pressure conversion sealing filter device, which can easily and quickly realize medical purposes such as negative pressure suction, normal pressure release, filtration and sealing. Background technique [0002] Clinical use of blood is an important means for medical institutions to treat diseases, improve clinical efficacy, and save patients' lives. At present, clinical blood mainly comes from blood banks, and the supply of blood sources is becoming increasingly tight, especially the supply of rare blood types is more difficult. Cross-transmission may occur through blood transfusion. Infections caused by blood transfusion at home and abroad, including window-period blood transfusion-transmitted virus accidents, are too numerous to enumerate. They are shocking, bring endless pain to patients, and also impose a heavy burden on society. [0003] In addition to avoiding inf...

Claims

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Application Information

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IPC IPC(8): A61M1/00A61M1/02
CPCA61M1/0001A61M1/0023A61M1/0281A61M2202/0413A61M2205/75A61M1/79A61M1/88A61M2202/0021
Inventor 张梅赵瑞
Owner 德州健洁医疗器械有限公司
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