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Vacuum assistant type hemostix

A vacuum-assisted, blood-collecting device technology, applied in sensors, blood sampling devices, medical science and other directions, can solve the problems of difficult to apply to mass consumption, extremely high material requirements, difficult to disposable products, etc., and achieve simple and large-scale processing and manufacturing. Selective, pain-relieving effects

Inactive Publication Date: 2017-09-29
雷鸣 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, piercing the skin deeper will also bring a greater risk of infection to the patient
[0004] The present invention is different from the U.S. patent "vacuum painless blood collection system" (application number: US: 2011020104: W, VACUUM ASSISTED LANCING SYSTEM AND METHOD FOR BLOOD EXTRACTION WITH MINIMAL PAIN). Vacuum, this method is ingenious and simple, but it has extremely high requirements on materials, the cost is difficult to apply to mass consumption, and it is even more difficult to form disposable products

Method used

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  • Vacuum assistant type hemostix
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  • Vacuum assistant type hemostix

Examples

Experimental program
Comparison scheme
Effect test

Embodiment (1

[0030] Embodiment (1): Reusable vacuum-assisted blood collection device

[0031] see figure 1 , in an embodiment of the present invention, a reusable vacuum-assisted blood collection device includes a protective housing (1), an ejection cylinder (2), a vacuum cylinder (3), a blood collection needle (4), and a blood collection needle holder (8 ), spring (9), locking structure (5), one-way plug (10) and pull rod (6).

[0032] When starting to use ( image 3 ), you can unscrew the protective shell, insert the blood collection needle into the blood collection needle seat, continue to push the blood collection needle and the needle seat to compress the spring, and slide the blood collection needle seat backward until the locking structure locks the needle seat and the spring to form a launch Locked state, and then screw on the protective case ( Figure 4 ). At this time, the one-way plug at the rear end of the needle seat can seal the vacuum cylinder.

[0033] The locking stru...

Embodiment (2

[0038] Embodiment (2): Disposable vacuum-assisted blood collection device

[0039] 1. Disposable vacuum-assisted blood collection device uses the same principle, but the structure is simpler, easy to carry and use. In the initial state, the disposable vacuum cartridge is kept in a vacuum state, and the spring is in a compressed state to be fired. When in use, the user presses the blood collection device at the site where blood is to be collected, and only needs to press the trigger button (15) to activate the needle to shoot, and at the same time, the spikes at the lower end of the trigger button can pierce the sealing film, so that the inside of the blood collection device is in a negative pressure state. The disposable needle punctures the skin, and at the same time, the negative pressure in the blood collection device can achieve sufficient blood collection volume under the condition of puncturing very shallow skin. During the blood collection process, the finger should al...

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Abstract

The invention discloses a painless blood collection device based on acupuncture in a negative pressure environment. The principle is to pre-set a vacuum environment before triggering the puncture needle. When preparing to take blood, the skin and the ejection shell form a closed space. When the puncture needle is triggered, the vacuum chamber and the closed space are connected to form a negative pressure environment. The blood collection needle only needs to puncture a very shallow area The skin, with the assistance of negative pressure, can achieve the required blood collection volume. After the finger releases the locking structure, the connected air hole can eliminate the negative pressure state and complete the blood collection process. This article provides two embodiments, one is a reusable negative pressure painless blood collection device, and the other is a disposable negative pressure painless blood collection device.

Description

technical field [0001] The invention relates to the technical field of human body trace blood collection in medical equipment, in particular, a vacuum device is used to assist blood collection, which can be used in medical institutions and households, such as the daily blood sugar measurement of diabetics. Background technique [0002] Blood collection devices are widely used in medical diagnosis and family personal blood glucose testing. Blood collection devices on the market generally use ejection blood collection needles to puncture the fingertips to collect blood, and the fingertips feel many nerves, which easily bring pain to the patient. Especially for diabetics, blood sugar needs to be monitored frequently. The pain in the blood collection process makes patients unwilling to test blood sugar, making blood sugar control more difficult. [0003] When the ordinary ejection blood collection needle punctures the skin of the finger, it must be pierced to a certain depth to...

Claims

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Application Information

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IPC IPC(8): A61B5/15A61B5/151
CPCA61B5/150099A61B5/150022A61B5/15113A61B5/15142
Inventor 雷鸣孙战强
Owner 雷鸣
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