Blood drawing device for blood examination

Abstract

The blood drawing device comprises a bottom plate, a supporting plate is rotatably connected between the left side and the right side of the front end of the upper end of the bottom plate in a matched mode, a supporting frame is rotatably connected to the rear portions of the left side and the right side of the outer wall of the supporting plate, and a fixing plate is arranged at the upper end of the supporting frame from front to back in an inclined and downward mode; positioning grooves are formed in the left side and the right side of the upper end of the fixing plate oppositely and downwards, a blood collection needle tube is detachably connected between the two positioning grooves in a matched mode, a pressing assembly is rotationally connected to the position, on one side of each positioning groove, of the fixing plate, a buckle is arranged on one side of the lower end of each pressing assembly, and a fixing groove is formed in the other side of each positioning groove downwards; a fixing assembly is arranged in each fixing groove, and fixing clamps are arranged on the left side and the right side of the bottom of the outer wall of the fixing plate. The blood collection tube is easy to operate, the operation process of replacing the blood collection tube can be reduced to a certain extent, and a certain supporting effect can be achieved on the arm of a patient during blood collection, so that blood collection work is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a blood test and blood drawing device. Background Art

[0002] Blood tests usually involve venous blood. Except for items with special requirements, venous blood tests are generally required to be drawn in the morning. Before blood drawing, try to reduce the amount of exercise, do not eat food, and keep an empty stomach. You can drink a small amount of water, except for some laboratory results that must be interfered with by taking certain medicines on time. Before blood drawing, you should try to clean the skin at the blood drawing site. The amount of blood drawn is determined according to the different test contents and the number of items. Blood drawing requires a blood drawing device.

[0003] According to patent number CN111166353A, a blood drawing device for collecting blood samples includes a barrel body, and the upper and lower ends of the barrel body are respectively fixedly connected with an upper plugging cap and a lower plugging cap, the upper surface of the upper plugging cap is fixedly connected with a shunt block, and a shunt cavity is opened inside the shunt block, the blood inlet of the shunt cavity is movably connected with a first hose, and each bleeding outlet of the shunt cavity is movably connected with a third hose, the lower end of the third hose passes through the side wall of the upper plugging cap and extends to the interior of the chamber and is fixedly connected with a puncture needle, the lower end of the puncture needle is movably inserted into the interior of the blood collection tube, and a plurality of slide grooves are opened inside the upper plugging cap, and a flow stop rod is slidably connected to the interior of the slide groove. The present invention eliminates the process of pulling out the drainage device and replacing it after blood collection is completed, avoids the risk of frequent contact between the end of the blood collection device and the air, prevents the occurrence of blood contamination problems, and improves the accuracy of blood testing.

[0004] Although the above technical solution can save the process of pulling out the drainage device and replacing it after blood collection is completed, and can also avoid the risk of frequent contact between the blood collection device and the air, it is well known that during blood collection, each patient must replace a new blood collection device before continuing blood collection. This technical solution requires a large number of replacements of various blood collection components after blood collection, which is not only complicated to operate, but also will cause a large amount of waste and waste medical resources. Summary of the invention

[0005] The purpose of the present invention is to provide a blood test blood drawing device, which is easy to operate and can not only reduce the operation process of replacing blood collection tubes to a certain extent, but also provide a certain support for the patient's arm during blood collection to facilitate the blood collection work.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] The cam is connected with the support rod at the front end of the bottom plate, and the support rod is connected with the support rod at the front end of the bottom plate to support the support rod.

[0008] A U-shaped fixing buckle is provided on one side of each positioning groove of the fixing plate, and a pressing component that can rotate up and down and cooperate with the corresponding positioning groove is rotatably connected between the left and right sides of the inner wall of each fixing buckle. A torsion spring is provided between the left and right sides of the outer wall of each pressing component and the inner wall of the corresponding fixing buckle. A U-shaped, elastic and deformable buckle is provided on the side of the lower end of each pressing component away from the corresponding fixing buckle. A fixing groove is opened downward on the other side of each positioning groove, and a fixing component used in cooperation with the buckle is provided in each fixing groove. A blocking sheet that cooperates with it and allows the buckle to pass through is provided at the open end of each fixing groove. Fixing clamps corresponding to the positioning groove one by one and used for placing blood collection tubes are provided on the left and right sides of the bottom of the outer wall of the fixing plate.

[0009] By adopting the above technical solution, when using the device, first put it on the blood collection operating table of the medical staff and fix the bottom plate, place one side of the support plate towards the person whose blood is to be collected, then rotate the support plate upward to a suitable position angle, and then rotate the support rod to support and fix the support plate, and then the person whose blood is to be collected can place his arm behind the support plate and the upper end of the bottom plate, and then the medical staff will place two blood collection tubes on the fixing frame respectively and fix them, and then rotate the support frame forward and let the front end of the fixing plate contact the skin of the person whose blood is to be collected. After the blood collection work is ready, the blood collection needle can be used. The needle is inserted into the vein of the person whose blood is being drawn, and then two catheters are inserted into the blood collection tube to start drawing blood. At this time, the medical staff can free their hands and mark the information of the person whose blood is being drawn on the blood collection tube. If multiple tubes of blood need to be drawn, rotate the pressing component to compress the catheter in the positioning groove, and let the front buckle extend into the fixing groove and contact and fix it with the fixing component. After replacing the new blood collection tube, press the pressing component again to disengage the buckle from the fixing component, and then continue blood collection. After the blood collection is completed, the blood collection needle and tube are discarded to draw blood from the next person whose blood is being drawn.

[0010] The present invention is further configured as follows: a plurality of suction cups distributed in an array are installed at the bottom of the base plate.

[0011] By adopting the above technical solution, when placing the device, it can be quickly fixed by the suction cup without the need for additional auxiliary fixing.

[0012] The present invention is further configured as follows: a notch is downwardly provided at the front end of the upper end of the bottom plate, and fixing teeth are relatively provided on the left and right sides of the inner wall of the notch along its length direction, and a positioning rod is provided at the lower end of the support rod for use with the fixing teeth.

[0013] By adopting the above technical solution, it is not only convenient for medical staff to adjust the inclination angle of the support plate, but also convenient to store the support rod when not in use, so that the support plate and the bottom plate are flat and fit together.

[0014] The present invention is further configured as follows: the pressing assembly includes a rotating shaft, a connecting rod arranged on the outer wall of the rotating shaft, and a pressing block arranged on one side of the lower end of the connecting rod.

[0015] The present invention is further configured as follows: the fixing assembly includes a fixing rod, a fixing block which is arranged at the upper end of the outer wall of the fixing rod and is trapezoidal in shape and is small at the top and large at the bottom, and a sliding block which is slidably connected to the lower end of the outer wall of the fixing rod and is trapezoidal in shape and is large at the top and small at the bottom. In an initial state, a gap is left between the sliding block and the bottom of the fixing rod.

[0016] By adopting the above technical solution, it is easy to realize the snap-on fixation of the buckle. When the downward pressure continues and the buckle contacts the slider, the buckle will drive the slider upward and when it contacts the lower end of the fixed block, the buckle will disengage from the fixed block to release the fixing effect.

[0017] The present invention is further configured as follows: the fixing clamp comprises a pull rod arranged in an arc shape, and a fixing ring arranged at the rear end of the pull rod and having an elastic upper end and an open shape.

[0018] The present invention is further configured as follows: a U-shaped buckle is provided at the front end of one side of the outer wall of the support plate, a strap passing through the buckle is provided at the front end of the other side of the outer wall of the support plate, a suede Velcro is provided on the outer wall of the strap, and a hook Velcro is provided on the outer wall of the free end of the outer wall of the strap to cooperate with the suede Velcro.

[0019] By adopting the above technical solution, the arm of the person whose blood is being drawn can be fixed, so as to avoid the person's arm shaking during the blood drawing process, causing the needle to fall off and affecting the smooth progress of the blood drawing work.

[0020] In summary, the present invention has the following beneficial effects:

[0021] First, the present invention is easy to operate, which can not only reduce the operation process of replacing blood collection tubes to a certain extent, but also provide a certain support for the patient's arm during blood collection, making it easier to carry out blood collection;

[0022] Secondly, the present invention can facilitate medical staff to collect multiple tubes of blood at one time, which can reduce the number of times of changing blood collection tubes and free the hands of medical staff, making it convenient for medical staff to perform other operations or mark blood collection tubes;

[0023] Thirdly, the combination of the buckle and the fixing assembly of the present invention can facilitate medical personnel to timely block the flow of blood in the catheter to replace the blood collection tube, and can also quickly release the blocking effect on the catheter. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is mainly used to show the position and connection relationship of each component;

[0026] Figure 3 is a schematic structural diagram of a pressing assembly of the present invention;

[0027] Figure 4 It is a structural schematic diagram of the blood collection needle tube of the present invention;

[0028] Figure 5 It is a schematic diagram of the state in which the buckle of the present invention is fixedly engaged with the fixing assembly;

[0029] Figure 6 It is a schematic diagram of the state in which the buckle of the present invention is separated from the fixing component.

[0030] In the figure: 1. bottom plate; 11. suction cup; 12. notch; 13. fixing tooth; 14. support plate; 15. support rod; 16. positioning rod; 17. cushion layer; 18. buckle; 19. strap; 2. velvet Velcro; 21. hook Velcro; 22. support frame; 23. fixing plate; 24. positioning slot; 25. blood collection needle tube; 26. three-way tube; 27. liquid inlet tube; 28. needle; 29. ​​liquid guide tube; 3. fixing buckle; 31. pressing assembly; 32. rotating shaft; 33. connecting rod; 34. pressing block; 35. torsion spring; 36. buckle; 37. fixing slot; 38. fixing assembly; 39. fixing rod; 4. fixing block; 41. slider; 42. baffle; 43. fixing clamp; 44. pull rod; 45. fixing ring. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0032] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “front”, “back”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0033] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0034] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "disposed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] Example, see Figure 1-6 A blood test blood drawing device comprises a bottom plate 1, a plurality of suction cups 11 arranged in an array are installed at the bottom of the bottom plate 1, a support plate 14 which can be rotated up and down is connected between the left and right sides of the front end of the upper end of the bottom plate 1, a notch 12 is downwardly provided at the front end of the upper end of the bottom plate 1, and a fixed tooth 13 is arranged on the left and right sides of the inner wall of the notch 12 along its length direction, a support rod 15 which can be rotated up and down is connected to the front end of the bottom of the support plate 14, and a support rod 15 which can be rotated up and down is arranged at the lower end of the support rod 15. The teeth 13 are used in conjunction with a positioning rod 16 that fixes and supports the support plate 14. A U-shaped buckle 18 is provided at the front end of one side of the outer wall of the support plate 14, and a strap 19 passing through the buckle 18 is provided at the front end of the other side of the outer wall of the support plate 14. The outer wall of the strap 19 is provided with a layer of suede Velcro 2, and the outer wall of the free end of the outer wall of the strap 19 is provided with a hook Velcro 21 that cooperates with the suede Velcro 2. A cushion layer 17 that cooperates with it is provided at the upper end of the support plate 14 and the rear of the upper end of the bottom plate 1.

[0036] The left and right sides of the outer wall of the support plate 14 are rotatably connected to a support frame 22 that can rotate forward and backward and is arranged in a U shape at the rear of the support plate 14. A fixing plate 23 is arranged on the upper end of the support frame 22 tilted downward from the front to the rear. A positioning groove 24 is relatively opened on the left and right sides of the upper end of the fixing plate 23. A blood collection needle tube 25 that matches with it is detachably connected between the two positioning grooves 24. The blood collection needle tube 25 includes a three-way tube 26, a liquid inlet tube 27 connected to one end of the three-way tube 26, a needle 28 connected to the front end of the liquid inlet tube 27, and two respectively arranged on the three-way tube. The tube 26 has two ends and is connected to the liquid guide tube 29, and a U-shaped fixing buckle 3 is provided on one side of each positioning groove 24 on the fixing plate 23, and a pressing component 31 that can rotate up and down and cooperates with the corresponding positioning groove 24 is rotatably connected between the left and right sides of the inner wall of each fixing buckle 3, and the pressing component 31 includes a rotating shaft 32, a connecting rod 33 arranged on the outer wall of the rotating shaft 32, and a pressing block 34 arranged on one side of the lower end of the connecting rod 33, and a torsion spring 35 that is sleeved on the rotating shaft 32 is provided between the left and right sides of the outer wall of each rotating shaft 32 and the inner wall of the corresponding fixing buckle 3.

[0037] A U-shaped, elastic and deformable buckle 36 is provided on one side of the lower end of each pressing component 31 away from the corresponding fixing buckle 3. A fixing groove 37 is downwardly opened on the other side of each positioning groove 24. A fixing component 38 used in conjunction with the buckle 36 is provided in each fixing groove 37. The fixing component 38 includes a fixing rod 39, a fixing block 4 arranged at the upper end of the outer wall of the fixing rod 39 and having a trapezoidal shape with a small top and a large bottom, and a sliding block 41 slidably connected to the lower end of the outer wall of the fixing rod 39 and having a trapezoidal shape with a large top and a small bottom. The slider 41 is consistent in size with the fixed block 4. In the initial state, there is a gap between the slider 41 and the bottom of the fixed block 4 and the fixed rod 39. The open end of each fixed groove 37 is provided with a baffle 42 that cooperates with it and allows the buckle 36 to pass through. The left and right sides of the bottom of the outer wall of the fixed plate 23 are provided with a fixing clamp 43 that corresponds to the positioning groove 24 and is used to place the blood collection tube. The fixing clamp 43 includes an arc-shaped pull rod 44 and a fixing ring 45 that is arranged at the rear end of the pull rod 44 and has an elastic upper end with an open shape.

[0038] Usage: When using, first place the device on the operating table where the medical staff draws blood, fix the bottom plate 1 through the suction cup 11, place one side of the support plate 14 toward the person whose blood is being drawn, then rotate the support plate 14 upward to a suitable position angle, and then rotate the support rod 15, so that the positioning rod 16 is engaged with the fixed teeth 13 on both sides of the inner wall of the notch 12 to support and fix the support plate 14, and the inclination angle of the support rod 15 can be adjusted to achieve the function of controlling the inclination angle of the support plate 14, and then the person whose blood is being drawn can place his arm on the support plate 1 4 and the rear of the upper end of the bottom plate 1, and then the medical staff pulls the strap 19 to make it contact with the arm of the person whose blood is being drawn, and then sticks the hook-surface Velcro 21 on the velvet Velcro 2 to simply fix it. The cushion block can improve the comfort of the person whose blood is being drawn. Then the medical staff places the two blood collection tubes on the fixing frame respectively, and allows the fixing ring 45 on the pull rod 44 to clamp and fix the blood collection tubes. Then, the support frame 22 is rotated forward and the front end of the fixing plate 23 is in contact with the skin of the person whose blood is being drawn. After the blood collection work is ready, the blood collection work can be carried out.

[0039] Use the needle 28 on the blood collection needle tube 25 to pierce the vein of the person whose blood is being collected, and then insert the two catheters 29 into the blood collection tube to start drawing blood. After passing through the three-way pipe 26, the blood flows into the blood collection tube from the two catheters 29 respectively. Since the fixing plate 23 is set at an angle, it can facilitate the flow of blood. At this time, the medical staff can free their hands and mark the information of the person whose blood is being collected or other operations on the blood collection tube. If multiple tubes of blood need to be drawn, turn the pressing component 31 in the fixing buckle 3 downward to allow the pressing block 34 on the connecting rod 33 to press the catheter 29 in the positioning groove 24 to stop the blood flow, and allow the front end buckle 36 to pass through the baffle 42 and extend into the fixing groove 37 to contact the fixing component 38 and be clamped and fixed. In this process, the inner wall of the buckle 36 will first contact the outer wall of the fixing block 4 on the fixing rod 39, and in the process of continuing to press down, the buckle 36 will be deformed to open it.

[0040] When the lower end of the buckle 36 is located below the fixed block 4, the buckle 36 returns to its initial state and is fixedly engaged with the bottom of the fixed block 4, and the torsion spring 35 on the rotating shaft 32 will improve the stability between the buckle 36 and the fixed block 4 through its own resilience. After replacing the new blood sampling tube, the pressing assembly 31 is pressed downward again to make the buckle 36 contact the outer wall of the slider 41 and allow the buckle 36 to deform during the continued downward pressure and then return to its initial state. The buckle 36 is engaged with the slider 41, and then the connecting rod 33 is rotated upward and the slider 41 is driven by the buckle 36 to slide up along the fixed rod 39 to the lower end of the fixed block 4. Continuing to rotate upward can disengage the buckle 36 from the slider 41 and the fixed block 4, and then the blood sampling work can be continued. After the blood sampling is completed, the blood sampling needle tube 25 is discarded and the next person to be blood sampled can be blood sampled.

[0041] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. After reading this specification, those skilled in the art can make creative modifications to this embodiment as needed, but as long as it is within the scope of the claims of the present invention, it will be protected by the patent law.

Claims

1. A blood test blood drawing device, comprising a base plate (1), characterized in that: A support plate (14) that can rotate up and down is rotatably connected between the left and right sides of the front end of the upper end of the base plate (1); a support rod (15) that can rotate up and down and cooperates with the base plate (1) to support and fix it is rotatably connected to the front end of the bottom of the support plate (14); a cushion layer (17) that cooperates with it is provided at the upper end of the support plate (14) and behind the upper end of the base plate (1); a support frame (22) that can rotate forward and backward and is arranged in a U shape is rotatably connected between the left and right sides of the outer wall of the support plate (14) and behind the support plate (14); A fixing plate (23) is arranged at the upper end of the support frame (22) in an inclined manner downward from the front to the rear, and positioning grooves (24) are provided on the left and right sides of the upper end of the fixing plate (23) facing downward relatively, and a blood collection needle tube (25) matching with the fixing plate (23) is detachably connected between the two positioning grooves (24), and the blood collection needle tube (25) comprises a three-way tube (26), a liquid inlet tube (27) connected to one end of the three-way tube (26), a needle head (28) connected to the front end of the liquid inlet tube (27), and liquid guide tubes (29) respectively arranged at both ends of the three-way tube (26) and both connected thereto; A U-shaped fixing buckle (3) is arranged on one side of each positioning groove (24) on the fixing plate (23); a pressing component (31) that can rotate up and down and cooperate with the corresponding positioning groove (24) is rotatably connected between the left and right sides of the inner wall of each fixing buckle (3); a torsion spring (35) is arranged between the left and right sides of the outer wall of each pressing component (31) and the inner wall of the corresponding fixing buckle (3); and a U-shaped elastic spring (35) is arranged on the side of the lower end of each pressing component (31) away from the corresponding fixing buckle (3). A buckle (36) is deformable, a fixing groove (37) is downwardly opened on the other side of each positioning groove (24), a fixing component (38) used in conjunction with the buckle (36) is arranged in each fixing groove (37), a blocking piece (42) is arranged at the open end of each fixing groove (37) and is matched with the buckle (36) and allows the buckle (36) to pass through, and fixing clips (43) corresponding to the positioning grooves (24) and used for placing blood collection tubes are arranged on the left and right sides of the bottom of the outer wall of the fixing plate (23).

2. A blood test blood drawing device according to claim 1, characterized in that: A plurality of suction cups (11) distributed in an array are installed at the bottom of the base plate (1).

3. A blood test blood drawing device according to claim 1, characterized in that: A notch (12) is provided downwardly at the front end of the upper end of the bottom plate (1), and fixing teeth (13) are arranged on the left and right sides of the inner wall of the notch (12) along the length direction thereof, and a positioning rod (16) for use with the fixing teeth (13) is arranged at the lower end of the support rod (15).

4. A blood test blood drawing device according to claim 1, characterized in that: The pressing assembly (31) comprises a rotating shaft (32), a connecting rod (33) arranged on the outer wall of the rotating shaft (32), and a pressing block (34) arranged on one side of the lower end of the connecting rod (33).

5. A blood test blood drawing device according to claim 1, characterized in that: The fixing assembly (38) comprises a fixing rod (39), a fixing block (4) arranged at the upper end of the outer wall of the fixing rod (39) and having a trapezoidal shape with a small top and a large bottom, and a sliding block (41) slidably connected to the lower end of the outer wall of the fixing rod (39) and having a trapezoidal shape with a large top and a small bottom. In an initial state, a gap is left between the sliding block (41) and the fixing block (4) and the bottom of the fixing rod (39).

6. A blood test blood drawing device according to claim 1, characterized in that: The fixing clamp (43) comprises a pull rod (44) arranged in an arc shape, and a fixing ring (45) arranged at the rear end of the pull rod (44) and having an elastic upper end and an open shape.

7. A blood test blood drawing device according to claim 1, characterized in that: A U-shaped buckle (18) is provided at the front end of one side of the outer wall of the support plate (14), a strap (19) passing through the buckle (18) is provided at the front end of the other side of the outer wall of the support plate (14), a velvet Velcro (2) is provided on the outer wall of the strap (19), and a hook Velcro (21) matching the velvet Velcro (2) is provided on the outer wall of the free end of the outer wall of the strap (19).

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