Blood sampling device allowing controllable puncturing depth

Abstract

The invention discloses a blood sampling device allowing controllable puncturing depth. The blood sampling device comprises a body, a blood sampling needle and a braking device. The body is provided with an operating end and an acting end. The end surface of the acting end is provided with a puncturing hole to be communicated with the body. The blood sampling needle and the braking device are arranged in the body. The blood sampling needle penetrates the braking device outside to form the puncturing hole. The end surface of the acting end is provided with at least one depth controlling element comprising at least one abutting protrusion. The abutting protrusions, protruded by the end surface of the acting end and arranged on spaced positions of the puncturing hole, are provided with extended abutting ends. The part of human body for blood sampling can be directly abutted against the end surface of the acting end of the body, or be placed on the extended abutting ends of the abutting protrusions, and various spacing distances are formed between the part of the human body and the puncturing hole, in this way, at the premise of simplest structure and lowest cost, practical advancement and better industry use benefits in rapid control of puncturing depth of the blood sampling are achieved.

Description

technical field [0001] The invention relates to a blood sampling device, in particular to a blood sampling device capable of controlling the puncture depth. Background technique [0002] Press, the blood collection device usually has a housing, a puncture needle arranged inside the housing, and a trigger member for driving the puncture needle. When the blood collection device is in use, the housing is pressed against the skin of the human body, and then the blood collection device The detent member drives a puncture needle inside to quickly rush out of the end face of the housing and then rebound, so that it can penetrate the human skin to form a very small needle wound to smoothly collect blood samples; however, due to the conventional blood collection The punching distance of the puncture needle of the device is fixed, so the following problems still exist in the actual use experience, probably because the thickness of the skin layer of each person is different, so if the ...

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Problems solved by technology

[0002] Press, the blood collection device usually has a housing, a puncture needle arranged inside the housing, and a trigger member for driving the puncture needle. When the blood collection device is in use, the housing is pressed against the skin of the human body, and then the blood collection device The detent member drives a puncture needle inside to quickly rush out of the end face of the housing and then rebound, so that it can penetrate the human skin to form a very small needle wound to smoothly collect blood samples; however, due to the conventional blood collection The punching distance of the puncture needle of the device is fixed, so the following problems still exist in the actual use experience, probably because the thickness of the skin layer of each person is different, so if the punching distance of the puncture needle is fixed, it may not be able to penetrate People with thicker skin layer, resulting in the dilemma of insufficient blood collection or even no bleeding. However, if the needle rushing distance is set to be able to penetrate people with thicker skin layer to ensure that blood can be collected from all people, then People with thin skin will have too deep puncture depth and increase their pain. In view of this, in order to make the blood collection process more smooth and perfect for people with various skin thicknesses, some people in the industry have developed a A blood collection device capable of adjusting the puncture depth in response to

[0003] Continuing from the above, the known blood collection device can refer to the invention patent cases of Taiwan Certificate No. I374728 and No. I346545. The structure is to change the structure of the traditional blood collection device by adding new components inside or outside the shell. , so as to be able to adjust and control the puncture depth of the puncture needle, but relatively make the structure of the blood collection device more complex and precise, which greatly increases the difficulty of manufacturing and assembly and increases the cost. It takes time and energy to adjust the action, so there are still shortcomings that are not convenient enough and do not meet the actual needs. It is necessary to improve and break through

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