Superficial vein blood vessel fixing device and fixing mechanism

Abstract

The invention relates to a superficial vein blood vessel fixing device and fixing mechanism. The superficial vein blood vessel fixing device comprises the fixing mechanism for fixing blood vessel anda driving mechanism for driving the fixing mechanism. The superficial vein blood vessel fixing device is characterized in that the fixing mechanism comprises a fixing sheet and pressing sheets arranged on two sides of the fixing sheet, the bottom surface of the fixing sheet is provided with a notch for positioning the blood vessel, one end of each pressing sheet is connected with the fixed sheet,and the other end of each pressing sheet is provided with a friction ball; and after the notch of the fixing sheet is aligned with the blood vessel needing to be fixed, the fixing mechanism is drivenby the driving mechanism to approach the skin and fix the blood vessel. Compared with the prior art, the fixing device has the advantages that the skin can be stretched towards the two sides of the blood vessel through the pressing sheets on two sides of the fixing sheet and the friction balls, so that wrinkles are avoided; and an independent mechanism is adopted for fixation, and it is guaranteedthat the fixing sheet is not changed in position along with tiny movement of the arm of a patient, so that the vein blood vessel cannot deviate, and the fixing effect is improved.

Description

technical field [0001] The invention relates to a puncture injection auxiliary device, in particular to a superficial vein blood vessel fixation device and a fixation mechanism. Background technique [0002] Venous puncture therapy is very common in the current human treatment. However, due to the hardening and thinning of the blood vessels of some patients or the reduction of the subcutaneous fat layer due to age, and the lack of technical proficiency of the operator, venipuncture is often performed. The phenomenon that the blood vessel slides under the skin results in unsuccessful puncture and increases the pain of the patient. [0003] Chinese patent CN201692401U discloses a superficial blood vessel fixation belt, including a fixation sheet, a snap button and a fixation elastic band, which is used to fix veins higher than the skin, but the device still needs to manually identify the vein and then fix it, and then puncture. However, it is difficult to align the notch with...

AI Technical Summary

Problems solved by technology

[0002] Venous puncture therapy is very common in the current human treatment. However, due to the hardening and thinning of the blood vessels of some patients or the reduction of the subcutaneous fat layer due to age, and the lack of technical proficiency of the operator, venipuncture is often performed. The phenomenon of blood vessels sliding under the skin leads to unsuccessful puncture and increases the pain of the patient

[0003] Chinese patent CN201692401U discloses a superficial blood vessel fixation belt, including a fixation sheet, a snap button and a fixation elastic band, which is used to fix veins higher than the skin, but the device still needs to manually identify the vein and then fix it, and then puncture. However, it is difficult to align the notch with the blood vessel by manual operation, and the operation is cumbersome and complicated. In addition, the fixing device will still move with the sliding of the skin when the fixing belt is tightly wrapped around the arm, and the position of the blood vessel cannot be accurately controlled. Without puncture robots, the full automation of the puncture process cannot be realized

But the device still needs to manually identify the veins and fix them

The operation is cumbersome; and the venous blood vessels are not fixed along the radial direction, so the blood vessels can still slide along the radial direction

In addition, the device is tied to the arm with an elastic band, and the overall device will still move with the sliding of the skin, resulting in the inability to accurately locate the blood vessel, so the device is only suitable for artificial venipuncture

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