Convenient disposable safety blood collecting device

Abstract

The invention discloses a convenient disposable safety blood collecting device, which consists of a rubber sleeve, a bottle penetrating needle, rubber cap, a puncture needle hub, a puncture needle, a spring and an outer sleeve. When the device is used, the puncture needle hub is pushed by hand to a right position, a handle on the puncture needle hub then is pushed to allow the puncture needle to extend out of the outer sleeve forward till the handle on the puncture needle hub and a fastening platform on the outer sleeve are fastened together, and thus, a 'Z-shaped' blood collecting channel which consists of the puncture needle, the puncture needle hub, the rubber cap, a bottle penetrating needle hub and the bottle penetrating needle and has a gap in the middle is formed for collecting blood under the action of a negative pressure blood collecting pipe. When blood collection is accomplished, and the puncture needle is pulled out from the body of a patient, the handle on the puncture needle hub is pulled to break the fastening of the handle and the outer sleeve; and at the same time, through the inclination action of an inclined plane on the puncture needle hub and the spring and the slotted bottom face of the outer sleeve, the puncture needle hub deflects when returning to factory settings, and the tip of the puncture needle points to a direction deflecting from a round hole in the outer sleeve and is prevented from extending out freely.

Description

technical field [0001] The invention relates to a medical blood collection device, which is a convenient and safe disposable blood collection device with the function of blood collection. technical background [0002] The convenient disposable safety blood collection device of the present invention is mainly used for medical purposes. Through the puncture technique, the patient's blood sample is collected into a specific container, which plays a huge role in the process of laboratory testing and disease treatment. Indispensable medical equipment. However, with the development of natural diseases and the mutation of viruses and bacteria, cross-infection and disease transmission caused by contact with blood or body fluids are becoming more and more serious (such as: common or repeated use of injection equipment by drug addicts, resulting in rapid spread of diseases, In addition, in daily medical behaviors, iatrogenic infections caused by injections aimed at medical staff due ...

AI Technical Summary

Problems solved by technology

[0003] 1. The blood collection device is directly integrated with the blood collection tube, which seems to be an improvement on the surface, but in fact it will not be able to meet the operational needs of collecting multiple blood samples at one time

[0004] 2. It is necessary to use a special component (inner jacket or fixed retaining ring) to start the protective action of the puncture needle, so the structure is complicated

[0005] 3. It is necessary to re-protect unused puncture needles, that is, to increase the components of the device, and to increase the operation link for medical staff to remove the puncture needle protective cap

[0006] Therefore, at present, there is no technical solution for a single-use blood collection device with a simpler structure, easier manufacture and more convenient operation in China.

Images