Blood collection auxiliary device for department of hematology

Abstract

The invention relates to the field of medical instruments, in particular to a blood collection auxiliary device for the department of hematology, which comprises a bottom plate and an arch-shaped electric drive guide rail, the bottom plate is a bearing carrier of the auxiliary device, the arch-shaped electric drive guide rail is fixedly mounted on the bottom plate, and the upper part of the arch-shaped electric drive guide rail is a downwards sunken arch-shaped guide rail; the blood sampling device further comprises a blood sampling cylinder, the blood sampling cylinder is rotationally installed in the arch-shaped electric drive guide rail in an electric drive mode, at least two finger through grooves are formed in the outer edge of a cylinder body of the blood sampling cylinder in the circumferential direction at intervals, and electric sliding rail frames are symmetrically and fixedly installed on the left side and the right side of the arch-shaped electric drive guide rail. The adsorption assembly is arranged in the blood sampling cylinder, the negative pressure cylinder and the vacuum pump are used for forming a negative pressure environment, the finger pulp skin of a blood sampling person is tightly adsorbed to a blood sampling opening, the pain feeling when a needle is punctured is reduced, meanwhile, the whole blood sampling process is completed in a closed environment, and the fear and tension feeling of the blood sampling person can be relieved.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and in particular to a blood collection auxiliary device for hematology. Background Art

[0002] In hematology, fingertip blood collection is a common and important diagnostic method. It is mainly used for rapid testing of blood sugar, blood gas analysis, blood routine tests, etc. Although this method is relatively simple to operate, there are still some challenges and inconveniences in practical applications, such as low standardization of operations, strong pain for patients, and risk of sample contamination.

[0003] The invention with authorization announcement number CN118356191B discloses a self-service fingertip blood collection device for a laboratory department, comprising a blood collection storage component, a blood collection puncture component, a blood collection gripping end, a supporting shell, a guide limit column and a blood collection cap, wherein the supporting shell is fixedly connected to the blood collection gripping end, the guide limit column is arranged on the blood collection gripping end, and the blood collection puncture component is arranged in the supporting shell. The structures such as the blood collection storage component and the blood collection puncture component of the above-mentioned fingertip blood collection device can realize rapid fingertip blood collection; however, in the actual blood collection process, especially when dealing with adolescents and children, since adolescents and children are prone to generate tension due to needle phobia, blood phobia or anticipated fear of pain during the blood collection process, they are prone to resisting behavior, which may affect the smooth progress of the blood collection process and increase the blood collection pressure of medical staff. Therefore, it is necessary to design a blood collection auxiliary device for hematology in view of the technical problems existing in the existing blood collection process, so as to reduce the fear and tension of adolescents and children during blood collection as much as possible and enable the blood collection process to proceed smoothly. Summary of the invention

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the present invention provides a blood collection auxiliary device for hematology.

[0005] The technical solution is as follows: A blood collection auxiliary device for hematology, comprising a base plate and an arched electric-driven guide rail, the base plate being the load-bearing carrier of the auxiliary device, the base plate being fixedly mounted with the arched electric-driven guide rail, the upper portion of the arched electric-driven guide rail being a downwardly concave arched guide rail; further comprising a blood collection cylinder, the blood collection cylinder being electrically driven and rotatably mounted in the arched electric-driven guide rail, the outer surface of the cylinder body of the blood collection cylinder being provided with at least two finger grooves at circumferential intervals, the finger grooves of the blood collection cylinder being provided for blood collection fingers to be placed in, electric slide rail frames being symmetrically and fixedly mounted on the left and right sides of the arched electric-driven guide rail; a blood collection assembly for blood collection is arranged between the electric slide rail frames, the blood collection assembly being located directly above the blood collection cylinder and having a covering member arranged on the periphery thereof, the blood collection assembly comprising a mounting plate electrically driven and slidably mounted between the electric slide rail frames on both sides, a disc frame being rotatably mounted on one side surface of the mounting plate, the mounting plate being away from the disc A stepper motor is fixedly installed on the side of the frame, and the output shaft of the stepper motor is connected to the rotating shaft of the disc frame. Six vacuum syringes are installed on the disc frame at intervals in the circumferential direction, and the vacuum syringes are all snap-on and detachably installed on the disc frame; an adsorption component for alleviating the pain of blood collection is provided on the cylinder body corresponding to each finger groove of the blood collection cylinder, and the adsorption component includes a negative pressure cylinder, a sealing member and a vacuum pump; the negative pressure cylinder is fixedly installed on the outer cylinder wall of the blood collection cylinder corresponding to the finger groove, the upper cylinder diameter of the negative pressure cylinder is adapted to the vacuum syringe, the vacuum syringe can slide tightly on the inner wall of the negative pressure cylinder, the lower cylinder diameter of the negative pressure cylinder gradually decreases, the bottom of the negative pressure cylinder is a blood collection port for blood collection by the needle of the vacuum syringe, a sealing member is provided inside the negative pressure cylinder, and the sealing member is used to block the blood collection port at the bottom of the negative pressure cylinder, a vacuum pump is provided on the outer wall of the negative pressure cylinder, and the vacuum pump is connected to the negative pressure cylinder through a conduit.

[0006] Preferably, the sealing component includes a micro-cylinder, a connecting plate, a sleeve and a sealing gasket. The micro-cylinder is fixedly installed in the lower cylinder cavity of the negative pressure cylinder. A connecting plate is fixedly provided on the piston rod of the micro-cylinder. The bottom surface of the end of the connecting plate is fixedly connected with a sleeve. The sleeve is for the needle of the vacuum syringe to pass through. The end of the sleeve away from the connecting plate is an opening. A sealing gasket is provided at the blood collection port of the negative pressure cylinder. An opening for adapting to the sleeve is opened inside the sealing gasket, and the sealing gasket is used to seal and fit the blood collection port of the negative pressure cylinder.

[0007] Preferably, a finger pad is provided in each finger slot of the blood collection cylinder, the finger pad corresponds to the position of the negative pressure cylinder of the finger slot, the finger pad is an arc support pad and has an opening facing the finger insertion port of the finger slot, the finger pad can provide stable support when the blood collection finger is inserted, and a ring-shaped disinfectant sponge is provided at the finger insertion port of each finger slot, medical disinfectant alcohol is adsorbed in the disinfectant sponge, and the disinfectant sponge is used to provide disinfection when the blood collection finger is inserted for blood collection.

[0008] Preferably, the outer wall of the blood sampling cylinder is embedded with liquid storage bags at circumferential intervals, and the liquid storage bags correspond to each finger slot of the blood sampling cylinder respectively. The liquid storage bags are elastic and are used to store medical disinfectant alcohol. A one-way valve is provided on the top of the liquid storage bag, and the one-way valve only allows gas to flow into the liquid storage bag in one direction. A rubber valve is provided at the bottom of the liquid storage bag, and the rubber valve passes through the wall of the blood sampling cylinder through a pipeline and is connected to the disinfectant sponge in the corresponding finger slot.

[0009] Preferably, an extrusion frame is fixedly connected between the frames of the two electric slide rail frames, and the extrusion frame is located directly above the blood collection cylinder. The extrusion frame is provided with a protrusion for squeezing the liquid storage bag. When the blood collection cylinder rotates to switch to a new finger slot, the protrusion of the extrusion frame can automatically press the liquid storage bag on the blood collection cylinder, so that the liquid storage bag adds a certain amount of medical disinfecting alcohol to the disinfecting sponge in the corresponding finger slot.

[0010] Preferably, the covering member includes an accordion cover, a connecting shaft and a slider. A slide groove is provided on the side wall of the electric slide rail frame. The slide grooves of the two electric slide rail frames are slidably connected with accordion covers through sliders. The accordion covers are retractable, symmetrically arranged in an arch shape and connected to each other through a connecting shaft. The accordion covers cover the blood collection components between the electric slide rail frames.

[0011] Preferably, a connecting frame is provided between the top shells of the arched electric drive guide rails, the connecting frame is located on the front side of the blood sampling cylinder, a ring adapted to the finger slot of the blood sampling cylinder is provided in the middle of the connecting frame, and a hemostatic tape is detachably mounted on the top buckle of the ring of the connecting frame. The hemostatic tape is used to wrap the tourniquet around the blood collection finger and remove it when the finger is extended out of the finger slot after blood collection is completed, so that the blood collection personnel can stop bleeding independently and conveniently.

[0012] Preferably, a support plate is fixedly connected to the front side of the top shell of the arched electric drive guide rail, and a plurality of elastic pads are arranged in an array at intervals on the top plate surface of the support plate. The support plate provides effective support to the palms and wrists of the blood collector through the elastic pads thereon, thereby avoiding fatigue of the blood collector when the hands are suspended in the air during blood collection.

[0013] The present invention has the following advantages:

[0014] 1. The present invention arranges an adsorption component in the blood collection cylinder, and uses a negative pressure cylinder and a vacuum pump to form a negative pressure environment, so that the fingertips of the blood collector are tightly adsorbed on the blood collection port, reducing the pain when the needle is inserted. At the same time, the entire blood collection process is completed in a closed environment, which helps to reduce the fear and tension of the blood collector.

[0015] 2. The present invention can ensure that the fingers can be effectively disinfected before each blood collection through the disinfection sponge in each finger groove and the liquid storage bag system, thereby reducing the risk of infection. In addition, the design of the seal further improves the sealing during the blood collection process to prevent cross contamination.

[0016] 3. The present invention can also provide support for the palm and wrist through the elastic pad on the support plate, avoiding fatigue caused by the hand hanging in the air; the hemostatic tape facilitates self-hemostasis after blood collection, thereby improving the user's overall experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0018] Figure 2 This is a connection diagram of the bottom plate, the arched electric drive guide rail, the blood sampling cylinder and other components of the present invention.

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the specific components of the blood collection assembly of the present invention.

[0020] Figure 4 It is a schematic diagram of the coordination relationship among the blood collection cylinder, the adsorption assembly and the vacuum syringe of the present invention.

[0021] Figure 5 It is a schematic diagram of the negative pressure cylinder, sealing member, vacuum pump and blood collection cylinder of the present invention.

[0022] Figure 6 It is a schematic diagram of the coordination relationship among the vacuum syringe, negative pressure cylinder and vacuum pump of the present invention.

[0023] Figure 7 The figure is a positional relationship diagram of the blood collection cylinder, disinfection sponge, liquid storage bag and extrusion frame of the present invention.

[0024] Figure 8 The figure is a connection diagram of the disinfection sponge, the liquid storage bag, the one-way valve and the rubber valve of the present invention.

[0025] Fig. 9 The figure is a connection relationship diagram of the electric slide rail frame, the accordion cover, the connecting shaft and the slider of the present invention.

[0026] Fig.10 It is a schematic diagram of the connecting frame, hemostatic tape, supporting plate and elastic pad of the present invention.

[0027] Explanation of the reference numerals: 1: bottom plate, 2: arched electric drive guide rail, 3: blood collection cylinder, 31: finger slot, 4: electric slide rail frame, 41: slide slot, 5: blood collection assembly, 51: mounting plate, 52: disc frame, 53: stepping motor, 54: vacuum syringe, 541: needle, 6: adsorption assembly, 61: negative pressure cylinder, 62: sealing member, 621: micro cylinder, 622: connecting plate, 623: sleeve, 624: sealing pad, 63: vacuum pump, 631: catheter, 7: finger pad, 8: disinfection sponge, 9: liquid storage capsule, 91: one-way valve, 92: rubber valve, 10: extrusion frame, 11: cover, 111: accordion cover, 112: connecting shaft, 113: slider, 12: connecting frame, 121: hemostatic tape, 13: support plate, 131: elastic pad. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Embodiment 1: A blood collection auxiliary device for hematology, such as Figure 1-Figure 5As shown, it includes a base plate 1 and an arched electric drive guide rail 2. The base plate 1 is the load-bearing carrier of the auxiliary device. The base plate 1 is fixedly installed with the arched electric drive guide rail 2, and the upper part of the arched electric drive guide rail 2 is an arched guide rail that is concave downwards; it also includes a blood sampling cylinder 3, which is electrically driven and rotatably installed in the arched electric drive guide rail 2. Six finger grooves 31 are circumferentially spaced apart along the outer edge of the cylinder body of the blood sampling cylinder 3. The finger grooves 31 of the blood sampling cylinder 3 are for blood sampling fingers to be placed in. Electric slide rail frames 4 are symmetrically fixedly installed on the left and right sides of the arched electric drive guide rail 2; a blood sampling assembly 5 for blood sampling is arranged between the electric slide rail frames 4, the blood sampling assembly 5 is located directly above the blood sampling cylinder 3 and is provided with a covering member 11 on the periphery, and the blood sampling assembly 5 includes an electrically driven sliding member 12 and a covering member 11 on the periphery thereof. A mounting plate 51 is provided between the electric slide rail frames 4, and a disc frame 52 is rotatably mounted on one side of the mounting plate 51. A stepper motor 53 is fixedly mounted on the side of the mounting plate 51 away from the disc frame 52. The output shaft of the stepper motor 53 is connected to the rotating shaft of the disc frame 52. Six vacuum syringes 54 are installed on the disc frame 52 at circumferential intervals. The vacuum syringes 54 are all snap-on and detachably mounted on the disc frame 52. An adsorption component 6 for alleviating the pain of blood collection is provided on the cylinder body of the blood collection cylinder 3 corresponding to each finger groove 31. The adsorption component 6 includes a negative pressure cylinder 61, a sealing member 62 and a vacuum pump 63. The negative pressure cylinder 61 is fixedly mounted on the outer cylinder wall of the blood collection cylinder 3 corresponding to the finger groove 31, and the upper cylinder diameter of the negative pressure cylinder 61 is adapted to the vacuum syringe. 54, the vacuum syringe 54 can slide tightly on the inner wall of the negative pressure cylinder 61, the diameter of the lower part of the negative pressure cylinder 61 gradually decreases, the bottom of the negative pressure cylinder 61 is a blood collection port for the needle 541 of the vacuum syringe 54 to collect blood, and a sealing member 62 is arranged inside the negative pressure cylinder 61, and the sealing member 62 is used to block the blood collection port at the bottom of the negative pressure cylinder 61, and a vacuum pump 63 is arranged on the outer wall of the negative pressure cylinder 61, and the vacuum pump 63 is connected to the negative pressure cylinder 61 through a conduit 631, and the arched electric drive guide rail 2 drives a finger groove 31 in the blood collection cylinder 3 to vertically align with a vacuum syringe 54 on the disc frame 52, and the blood collector's fingertip extends upward into the finger groove 31 aligned with the vacuum syringe 54, and at this time, the blood collector's fingertip will be close to the blood collection at the bottom of the negative pressure cylinder 61 The electric slide frame 4 drives the vacuum syringe 54 on the disc frame 52 to initially extend into the negative pressure cylinder 61. At the same time, the sealing member 62 seals the blood collection port at the bottom of the negative pressure cylinder 61, so that a relatively sealed cylinder cavity is formed at the lower part of the negative pressure cylinder 61. The vacuum pump 63 then draws the cylinder cavity at the lower part of the negative pressure cylinder 61 into a negative pressure, so that the fingertips of the blood collector's skin are tightly adsorbed at the blood collection port. Finally, the electric slide frame 4 continues to drive the needle 541 of the vacuum syringe 54 to quickly pierce the epidermis of the blood collector's finger, and uses the negative pressure in the negative pressure cylinder 61 to suck out the blood from the fingertips, and then cooperates with the needle 541 of the vacuum syringe 54 to complete automatic blood collection, thereby reducing the pain during blood collection, and the entire blood collection process is completed in the blood collection cylinder 3, reducing the fear and tension during blood collection.

[0030] like Figure 5 and Figure 6As shown, the sealing member 62 includes a micro cylinder 621, a connecting plate 622, a sleeve 623 and a sealing gasket 624. The micro cylinder 621 is fixedly installed in the lower cylinder cavity of the negative pressure cylinder 61. The connecting plate 622 is fixedly provided on the piston rod of the micro cylinder 621. The end bottom surface of the connecting plate 622 is fixedly connected with a sleeve 623. The sleeve 623 is for the needle 541 of the vacuum syringe 54 to pass through. The end of the sleeve 623 away from the connecting plate 622 is an opening. The blood collection port of the negative pressure cylinder 61 is provided with a sealing gasket 624. The end tube opening of the sleeve 623 An air vent is left between the sealing gasket 624, and an opening for adapting the sleeve 623 is opened inside the sealing gasket 624. The sealing gasket 624 is used to seal the blood collection port of the negative pressure cylinder 61. The blood collection finger in the finger slot 31 of the blood collection cylinder 3 will block the opening of the sealing gasket 624, so that the cylinder cavity between the vacuum syringe 54 in the negative pressure cylinder 61 and the sealing gasket 624 is sealed. When blood is collected, the micro cylinder 621 drives the sleeve 623 through the connecting plate 622 to press the sealing gasket 624 downward and fit it to the blood collection finger to prevent blood from overflowing from the finger during blood collection.

[0031] like Figure 5 and Figure 8 As shown, a finger pad 7 is provided in each finger slot 31 of the blood sampling cylinder 3. The finger pad 7 corresponds to the location of the negative pressure cylinder 61 of the finger slot 31. The finger pad 7 is an arc support pad and its opening faces the finger insertion port of the finger slot 31. The finger pad 7 can provide stable support when the blood sampling finger is inserted. A ring-shaped disinfectant sponge 8 is provided at the finger insertion port of each finger slot 31. Medical disinfectant alcohol is adsorbed in the disinfectant sponge 8. The disinfectant sponge 8 is used to provide disinfection when the blood sampling finger is inserted for blood collection.

[0032] Before using the present device for auxiliary blood collection, the medical staff first assembles the vacuum syringe 54 for blood drawing onto the disc frame 52 in sequence. When collecting blood, the arched electric drive guide rail 2 is first activated. The arched electric drive guide rail 2 drives the blood collection cylinder 3 to rotate accurately along the arched track until the negative pressure cylinder 61 of the finger slot 31 of the blood collection cylinder 3 is vertically aligned with the vacuum syringe 54 on the disc frame 52. Then the blood collector's palm faces up and selects any finger (usually the middle finger or ring finger) to insert into the upper part of the blood collection cylinder 3 to align with the finger slot 31 of the vacuum syringe 54. After the blood collector's finger is correctly inserted into the finger slot 31, it will be stably supported by the finger pad 7. At this time, the fingertip will fit against the sealing pad 624 of the blood collection port at the bottom of the negative pressure cylinder 61, so that the negative pressure cylinder 61 is shaped The electric slide rails 4 on both sides are simultaneously activated, and the electric slide rails 4 drive the mounting plate 51 to move downward slowly. The mounting plate 51 drives the vacuum syringe 54 at the bottom vertical on the disc frame 52 to be inserted into the upper part of the negative pressure cylinder 61 at a constant speed until the outer wall of the vacuum syringe 54 and the inner wall of the upper part of the negative pressure cylinder 61 are precisely fitted and the airtightness is ensured. Then the electric slide rails 4 stop driving the mounting plate 51, and then the vacuum pump 63 is activated. The vacuum pump 63 sucks the air in the lower chamber of the negative pressure cylinder 61 through the conduit 631, so that the air pressure in the negative pressure cylinder 61 drops to a preset negative pressure value. At this time, the skin of the fingertips of the blood collector is evenly adsorbed on the surface of the sealing pad 624 of the blood collection port of the negative pressure cylinder 61 under the action of negative pressure. The local skin of the blood collection finger becomes thinner due to the increased tension, and the subcutaneous The sensitivity of nerve endings is reduced, and at the same time, the capillaries are dilated to facilitate subsequent puncture. The micro cylinder 621 in the negative pressure cylinder 61 is activated again, and the piston rod of the micro cylinder 621 pushes the sleeve 623 downward through the connecting plate 622. The end of the downward sleeve 623 is pressed on the silicone sealing pad 624, so that the opening of the sealing pad 624 can fit the belly of the blood collection finger at the blood collection port of the negative pressure cylinder 61, so as to prevent the blood flowing out of the wound on the belly of the finger from escaping outward during subsequent blood collection. Then the electric slide frame 4 is activated again, and the electric slide frame 4 drives the mounting plate 51 at high speed to drive the disc frame 52 and the vacuum syringe 54 to rush down rapidly with a preset acceleration, so that the needle 541 of the vacuum syringe 54 instantly penetrates and pierces the epidermis of the adsorption area of ​​the fingertip, and the needle 541 penetrates to a depth of The travel encoder of the slide frame is used for precise control to ensure that only the superficial layer of the skin is penetrated to avoid touching the deep pain-sensitive tissue. Then, the blood on the punctured finger is quickly sucked out by the negative pressure in the negative pressure cylinder 61, and is synchronously sucked into the vacuum syringe 54 by the needle 541. After the blood collection is completed, the vacuum pump 63 supplies air to the negative pressure cylinder 61 through the catheter 631, so that the negative pressure cylinder 61 contacts the negative pressure state and loosens the finger of the blood collector. Finally, the electric slide frame 4 drives the vacuum syringe 54 that has completed the blood collection to detach from the current negative pressure cylinder 61, and then drives the disc frame 52 to rotate and switch to a new blood drawing vacuum syringe 54 through the stepper motor 53, so as to quickly carry out the next blood drawing operation. During the entire blood collection process, the blood collector cannot see the finger being drawn, thereby reducing the fear and pressure of the blood collector.

[0033] Embodiment 2: Based on embodiment 1, Figure 2 and Figure 8 As shown, the outer wall of the blood sampling cylinder 3 is embedded with liquid storage capsules 9 at intervals in the circumferential direction. The liquid storage capsules 9 correspond to each finger slot 31 of the blood sampling cylinder 3. The liquid storage capsules 9 are elastic and are used to store medical disinfectant alcohol. A one-way valve 91 is provided on the top of the liquid storage capsule 9. The one-way valve 91 only allows gas to flow into the liquid storage capsule 9 in one direction. A rubber valve 92 is provided at the bottom of the liquid storage capsule 9. The rubber valve 92 passes through the wall of the blood sampling cylinder 3 through a pipeline and is connected to the disinfection sponge 8 in the corresponding finger slot 31. When the blood collection finger is placed in the newly replaced finger slot 31 for blood collection, by pressing the liquid storage bag 9, the one-way valve 91 on the liquid storage bag 9 cannot be exhausted, so that the medical disinfecting alcohol in the liquid storage bag 9 breaks through the rubber valve 92 under the action of air pressure and flows into the disinfecting sponge 8 from the pipe of the rubber valve 92, so that the disinfecting sponge 8 can be soaked in the medical disinfecting alcohol to disinfect the inserted finger. After releasing the liquid storage bag 9, the one-way valve 91 on the liquid storage bag 9 is pressed to inhale air and balance the air pressure in the bag.

[0034] like Figure 7 and Figure 8 As shown, an extrusion frame 10 is fixedly connected between the frames of the two electric slide rail frames 4. The extrusion frame 10 is located directly above the blood sampling cylinder 3. A convex block for squeezing the liquid storage bag 9 is provided on the extrusion frame 10. When the blood sampling cylinder 3 rotates to switch to a new finger slot 31, the convex block of the extrusion frame 10 can automatically press the liquid storage bag 9 on the blood sampling cylinder 3, so that the liquid storage bag 9 adds a certain amount of medical disinfecting alcohol to the disinfecting sponge 8 in the corresponding finger slot 31.

[0035] like Figure 1 and Fig. 9 As shown, the covering member 11 includes an accordion cover 111, a connecting shaft 112 and a slider 113. A slide groove 41 is opened on the side wall of the electric slide rail frame 4. The slide grooves 41 of the two electric slide rail frames 4 are slidably connected with the accordion cover 111 through the slider 113. The accordion cover 111 is retractable. The accordion cover 111 is symmetrically arranged in an arch shape and is interconnected through the connecting shaft 112. The accordion cover 111 covers the blood collection assembly 5 between the electric slide rail frames 4. The vacuum syringe 54 and the needle 541 on the blood collection assembly 5 are telescopically covered and visually blocked by the accordion cover 111, which further reduces the pressure and fear of the blood collector during blood collection.

[0036] like Figure 1 and Fig.10As shown, a connecting frame 12 is arranged between the top shells of the arched electric drive guide rail 2, and the connecting frame 12 is located on the front side of the blood sampling cylinder 3. A circular ring adapted to the finger slot 31 of the blood sampling cylinder 3 is arranged in the middle of the connecting frame 12, and a hemostatic tape 121 is detachably mounted on the top buckle of the circular ring of the connecting frame 12. The hemostatic tape 121 is used to wrap the tourniquet on the hemostatic tape 121 around the blood sampling finger and remove it when the finger is extended out of the finger slot 31 after the blood sampling is completed, so that the blood sampling personnel can stop the bleeding independently and conveniently.

[0037] like Figure 1 and Fig.10 As shown, a support plate 13 is fixedly connected to the front side of the top shell of the arched electric drive guide rail 2, and a plurality of elastic pads 131 are arranged in an array at intervals on the top surface of the support plate 13. The support plate 13 provides effective support to the palms and wrists of the blood collector through the elastic pads 131 thereon, thereby avoiding fatigue of the blood collector when the hands are suspended in the air during blood collection by fingers.

[0038] When the arched electric drive guide rail 2 drives the blood sampling cylinder 3 to rotate and switch to a new finger slot 31, the convex block of the extrusion frame 10 accurately presses the corresponding liquid storage capsule 9, and the medical alcohol pre-stored in the capsule breaks through the rubber valve 92 under pressure and is injected into the disinfectant sponge 8 along the pipeline. The disinfectant sponge 8 is quickly soaked. When the liquid storage capsule 9 rebounds after being pressed, the one-way valve 91 on the top of the liquid storage capsule 9 automatically inhales air and restores the shape of the capsule after the pressure is released. When the blood sampling personnel puts the blood sampling finger into the finger slot 31 of the blood sampling cylinder 3, the finger will pass through the disinfectant sponge 8 soaked with medical alcohol in the finger slot 31, so that the finger is disinfected before blood collection. After the finger is inserted into the finger slot 31 of the blood sampling cylinder 3, The palm facing upward can be placed flat on the support plate 13, and the wrist naturally fits into the arc-shaped depression of the elastic pad 131, ensuring that the arm is stable and free of hanging fatigue during the subsequent blood collection process. During the blood collection process, the medical staff slides and pulls up the accordion cover 111 between the electric slide rails 4 on both sides, so that the arched accordion cover 111 is in an extended state and completely covers the blood collection component 5 and the blood collection area, thereby preventing the blood collector from looking directly at the sharp parts. After the blood collection is completed, when the blood collector withdraws his finger from the finger slot 31, he can wrap the hemostatic tape 121 around the finger wound and tear it off. The pre-cut sutures of the hemostatic tape 121 are disconnected under the action of friction, and the user only needs to press lightly to complete the bleeding.

[0039] The above description is only an example of the present invention and is not intended to limit the present invention. Any equivalent substitutions made within the principles of the present invention should be included in the protection scope of the present invention. The contents not elaborated in detail in the present invention belong to the existing technologies known to those skilled in the art.

Claims

1. A blood collection auxiliary device for hematology, comprising a base plate (1) and an arched electric drive guide rail (2), wherein the arched electric drive guide rail (2) is fixedly mounted on the base plate (1); It is characterized in that The blood sampling cylinder (3) is electrically driven and rotatably installed in the arched electric drive guide rail (2). No less than two finger through grooves (31) are arranged at intervals in the circumferential direction of the blood sampling cylinder (3). Electric slide rail frames (4) are symmetrically fixed on both sides of the arched electric drive guide rail (2). A blood sampling assembly (5) is arranged between the electric slide rail frames (4), comprising a mounting plate (51) slidably mounted between the electric slide rail frames (4) on both sides, a disc frame (52) rotatably mounted on the mounting plate (51), a stepping motor (53) is fixedly arranged on the side of the mounting plate (51) away from the disc frame (52), an output shaft of the stepping motor (53) is connected to a rotating shaft of the disc frame (52), and no less than two vacuum syringes (54) are installed at intervals in the circumferential direction of the disc frame (52), and a covering member (11) is arranged on the periphery of the blood sampling assembly (5); The blood sampling cylinder (3) is provided with an adsorption assembly (6), which comprises a negative pressure cylinder (61), a sealing member (62) and a vacuum pump (63). The negative pressure cylinder (61) is fixedly mounted on the outer wall of the blood sampling cylinder (3) corresponding to the finger slot (31). The bottom of the negative pressure cylinder (61) is a blood sampling port for a needle (541) of a vacuum syringe (54) to collect blood. The negative pressure cylinder (61) is provided with a sealing member (62) for blocking the blood sampling port of the negative pressure cylinder (61). The negative pressure cylinder (61) is provided with a vacuum pump (63), which is connected to the negative pressure cylinder (61) through a conduit (631).

2. A blood collection auxiliary device for hematology according to claim 1, characterized in that: The sealing member (62) comprises a micro cylinder (621), a connecting plate (622), a sleeve (623) and a sealing gasket (624); the micro cylinder (621) is fixedly installed in the lower cylinder cavity of the negative pressure cylinder (61); a connecting plate (622) is fixedly provided on the piston rod of the micro cylinder (621); a sleeve (623) is fixedly connected to the bottom surface of the end of the connecting plate (622); the sleeve (623) is for the needle (541) of the vacuum syringe (54) to pass through; the end of the sleeve (623) away from the connecting plate (622) is open; a sealing gasket (624) is provided at the blood collection port of the negative pressure cylinder (61); an opening for adapting to the sleeve (623) is provided inside the sealing gasket (624).

3. A blood collection auxiliary device for hematology according to claim 2, characterized in that: A finger pad (7) is arranged in each finger slot (31) of the blood sampling cylinder (3), the finger pad (7) corresponds to the location of the negative pressure cylinder (61) of the finger slot (31), and a circular disinfection sponge (8) is arranged at the finger insertion entrance of each finger slot (31).

4. A blood collection auxiliary device for hematology according to claim 3, characterized in that: Liquid storage bags (9) are embedded in the outer wall of the blood sampling cylinder (3) at intervals in the circumferential direction. The liquid storage bags (9) correspond to each finger slot (31) of the blood sampling cylinder (3). The liquid storage bags (9) are elastic and are used to store medical disinfectant alcohol. A one-way valve (91) is arranged on the top of the liquid storage bag (9). The one-way valve (91) only allows gas to flow into the liquid storage bag (9) in one direction. A rubber valve (92) is arranged on the bottom of the liquid storage bag (9). The rubber valve (92) penetrates the wall of the blood sampling cylinder (3) through a pipeline and is connected to the disinfectant sponge (8) in the corresponding finger slot (31).

5. A blood collection auxiliary device for hematology according to claim 4, characterized in that: An extrusion frame (10) is fixedly connected between the frame bodies of the two electric slide rail frames (4). The extrusion frame (10) is located directly above the blood sampling cylinder (3). A convex block for extruding the liquid storage bag (9) is provided on the extrusion frame (10).

6. A blood collection auxiliary device for hematology according to claim 5, characterized in that: The cover (11) comprises an accordion cover (111), a connecting shaft (112) and a slider (113); a slide groove (41) is provided on the side wall of the electric slide rail frame (4); the slide grooves (41) of the two electric slide rail frames (4) are slidably connected with the accordion cover (111) via the slider (113); the accordion cover (111) is retractable; the accordion cover (111) is symmetrically arranged in an arch shape and is connected to each other via the connecting shaft (112); the accordion cover (111) covers the blood collection assembly (5) between the electric slide rail frames (4).

7. A blood collection auxiliary device for hematology according to claim 6, characterized in that: A connecting frame (12) is arranged between the top shells of the arched electric drive guide rail (2), the connecting frame (12) is located at the front side of the blood sampling cylinder (3), a circular ring adapted to the finger slot (31) of the blood sampling cylinder (3) is arranged in the middle of the connecting frame (12), and a hemostatic tape (121) is installed at the top of the circular ring of the connecting frame (12).

8. The blood collection auxiliary device for hematology according to claim 7, characterized in that: A support plate (13) is fixedly connected to the front side of the top shell of the arched electric drive guide rail (2), and a plurality of elastic pads (131) are arranged in an array at intervals on the top plate surface of the support plate (13).

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