Venous blood collection apparatus under variable-angle endoscope
An angle-changing and endoscopic technology, applied in the field of medical devices, can solve problems such as difficulty, physical and energy-consuming, venous blood vessel penetration, etc., and achieve the effect of ensuring smooth progress
Pending Publication Date: 2018-02-16
UNIV OF JINAN
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Problems solved by technology
The current blood collection method is to use tweezers to clamp the needle tube of the blood collection needle. Due to the complicated distribution of organs in the body and the small diameter of the venous blood vessels, it is easy to penetrate the venous blood vessels and cause blood loss. Therefore, the blood collection process is difficult and consumes a lot of money. stamina and energy
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Embodiment Construction
[0018] In order to clearly illustrate the technical features of the solution, the solution will be described below through specific implementation modes.
[0019] Such as figure 1 Shown is a variable-angle endoscopic venous blood collection device, including a sleeve 1 and a blood collection needle 2 .
[0020] The blood collection needle 2 includes a stainless steel needle tube 201 slidably connected in the sleeve, and a connecting part 202, a front hose 203, a hard tube 204, a rear hose 205 and a Luer connector 206 sequentially connected from the needle tube 201. The outer diameter of the connecting part 202 is larger than the outer diameter of the needle tube, the front end surface of the connecting part 202 , that is, the end face connected with the needle tube is a curved surface, and the diameter of the front hose 203 is not larger than the outer diameter of the connecting part 202 .
[0021] The sleeve 1 includes a hollow tube 102 slidably connected with the needle tub...
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The invention relates to a venous blood collection apparatus under a variable-angle endoscope. The venous blood collection apparatus comprises a cannula and a blood collection needle, the blood collection needle comprises a needle tubing slidably connected in the cannula and a connecting part, a front hose, a rigid tube and a rear hose which are sequentially connected from the needle tubing, and the outer diameter of the connecting part is larger than that of the needle tubing; the cannula comprises a hollow tube and a needle guiding part fixedly connected to the front end of the hollow tube,a leading surface extending to the axis of the hollow tube is arranged on the needle guiding part, a straight slot matched with the needle tubing is formed in the leading surface, two sides of the straight slot are provided with leading walls, and the space of the leading walls on two sides are matched with the outer diameter of the connecting part. When the needle tubing is inserted into the body, the hollow tube is utilized for protection, accidentally injure to other organs is avoided, the direction of the needle tubing is charged through the leading surface during inserting of the needle tubing, the needle tubing is allowed to be inserted into the blood vessel obliquely, penetrating of the blood vessel is avoided, and smooth operation in blood collection is guaranteed.
Description
technical field [0001] The invention relates to the field of medical appliances, in particular to a venous blood collection device under a variable-angle endoscope. Background technique [0002] Clinically, in order to understand the condition more clearly, it is necessary to collect blood from the internal organs. The current blood collection method is to use tweezers to clamp the needle tube of the blood collection needle. Due to the complicated distribution of organs in the body and the small diameter of the venous blood vessels, it is easy to penetrate the venous blood vessels and cause blood loss. Therefore, the blood collection process is difficult and consumes a lot of money. of physical strength and energy. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the present invention provides a venous blood collection device under a variable-angle laparoscope, which facilitates venous blood collection for internal organs and greatly reduces...
Claims
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IPC IPC(8): A61B5/153
CPCA61B5/15003A61B5/150572A61B5/150748A61B5/153
Inventor 赵东刘少壮陈月辉万敏魏军李庆雨胡三元
Owner UNIV OF JINAN