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Disposable portable visible negative-pressure adjusting, absorbing and collecting system

A portable, disposable technology, used in suction devices, wound drainage devices, etc., can solve the problems of drainage failure, unstable negative pressure, damage to surrounding tissues, etc., to achieve good safety and versatility, economical and controllable strong effect

Active Publication Date: 2012-07-25
SHANGHAI NINTH PEOPLES HOSPITAL SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the negative pressure it provides is unstable, and it cannot display the negative pressure level, and the controllability is poor
In clinical practice, the problem of excessive negative pressure is likely to occur, causing excessive suction of the suction port to damage the surrounding tissues; or the problem of too small negative pressure or even the disappearance of negative pressure, resulting in drainage failure, causing complications such as hematoma, seroma and even infection
The above problems limit the further development of portable vacuum suction

Method used

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  • Disposable portable visible negative-pressure adjusting, absorbing and collecting system
  • Disposable portable visible negative-pressure adjusting, absorbing and collecting system
  • Disposable portable visible negative-pressure adjusting, absorbing and collecting system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1: Adjustment of negative pressure.

[0037] 1. Put the needle plug 3 at the 0ml position of the needle tube, open the movable card 2, and open the flow regulator 6; connect the 12 heads of the drainage tube to the negative pressure treatment area of ​​the patient, and connect the connecting tube 5 to the negative pressure display device and the negative pressure maintenance device respectively. Negative pressure display device and drainage tube 12.

[0038] 2. Gradually pull out the needle plug 3 to generate negative pressure in the needle tube 4 . Through the connecting tube 5, the negative pressure is transmitted to the negative pressure display device. As the negative pressure in the dropper bottle 11 increases, the pressure difference on both sides of the latex airbag 8 makes the airbag 8 extend along the injection tube 10, because the elongation of the airbag 8 There is a linear relationship between the volume and the negative pressure value (see note ...

Embodiment 2

[0048] Example 2: Taking out drainage fluid and maintaining negative pressure.

[0049] It is applied when there is a lot of drainage fluid in the needle tube 4 and needs to be replaced, or when the negative pressure is insufficient and the negative pressure needs to be increased.

[0050] 1. Close the flow regulator 6 to make the negative pressure system airtight.

[0051] 2. Remove the needle tube 4 and record the drainage volume. Open the movable card 2, completely push out the drainage fluid or gas in the needle tube 4 and connect it to the connecting tube 5 again.

[0052] 3. Repeat steps 1-2 in Example 1 and Steps 1-2 in Example 2 until the negative pressure indicator airbag 8 reaches the required negative pressure level scale, then close the movable card 2 to fix the pintle handle 1 .

[0053] The simple negative pressure display device in this system can also be connected to different devices separately to indicate the general negative pressure level.

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PUM

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Abstract

The invention provides a disposable portable visible negative-pressure adjusting and absorbing system which is composed of a pressure adjusting device, a pressure maintaining device and a pressure collecting device, a pressure display device and a connecting and switching device, wherein, the pressure adjusting device, the pressure maintaining device and the pressure collecting device are composed of a needle tube and a syringe; the pressure display device is composed of a burette bottle and an injection tube; and the connecting and switching device is composed of a connecting pipe, a flow adjuster and a drainage tube and communicated with the pressure maintaining device, the pressure display device and the negative-pressure treatment position of a patient through the connecting pipe. Thedisposable portable visible negative-pressure adjusting and absorbing system of the invention has the following positive effects: (1) the system can display and adjust a negative-pressure value in real time and has strong controllability; (2) the system has convenient use, simple operation, no need of electricity, good safety and good generality and can be carried with a patient; and (3) the system is basically made of a plastic rubber material, thus being sanitary and having better economical efficiency.

Description

【Technical field】 [0001] The invention relates to a medical device, in particular to a disposable, portable negative pressure suction collection system which can display and adjust the negative pressure value in real time. 【Background technique】 [0002] At present, negative pressure suction therapy is widely used clinically. It includes various postoperative fluid drainage and negative pressure wound sealing drainage techniques. [0003] Clinically, wall negative pressure suction or small negative pressure pump suction system is usually used for negative pressure suction treatment: the negative pressure pipeline in the hospital center or small motor negative pressure pump generates continuous negative pressure suction, and the flow is shunted through the barometer and the negative pressure is displayed. After the treatment pressure is reached, it is connected to a negative pressure collection bag or a collection bottle; the other end of the collection bag or collection bot...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M1/00A61M27/00
Inventor 翁瑞李青峰郑永生
Owner SHANGHAI NINTH PEOPLES HOSPITAL SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE