A continuous and fast disposable blood collection needle automatic blood collection device

Abstract

The present invention provides a continuous and fast disposable blood collection needle automatic blood sampling device, comprising a base and a cover body, a raised connecting piece is arranged at one end of the base, the connecting piece is movably connected to a frame through a connecting shaft, and a circle of limiting holes is arranged on the frame, the frame is a hollow structure, the hollow inner cavity of the frame is a blood collection needle arrangement cavity, a plurality of disposable blood collection needles are arranged in sequence in the blood collection needle arrangement cavity, a spring pushing plate is arranged in the blood collection needle arrangement cavity, and the disposable blood collection needle is pushed to a feeding device, the head of the frame is a feeding circular hole, a feeding device is arranged in the feeding circular hole, a stepping motor is connected in the center hole of the feeding device, an ejection push rod and a discharge push rod are respectively arranged at the upper part of the feeding device; a blood collection hole and a discharge hole are respectively arranged at the lower part of the ejection push rod and the discharge push rod, a clamp is arranged at the other end of the base to clamp a finger, and a sensor is arranged below the clamp.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a continuous and fast disposable blood collection needle automatic blood collection device. Background Art

[0002] A disposable blood collection needle is a blood collection needle used to collect blood samples during medical examinations. It consists of a needle and a needle rod. The needle is located at the head of the needle rod, and a sheath is slidably connected to the needle rod. A reset spring is provided between the sheath and the needle rod, and the initial position of the sheath is located at the head of the needle and the needle rod. When the operator holds the needle tube and presses the head of the blood collection needle on the patient's limb, the sheath retracts under the elastic force of the skin, causing the needle to protrude and pierce the skin to cause minimal trauma. When the blood collection needle is removed, the sheath is reset under the action of the reset spring to cover the needle to prevent the needle from being exposed and contaminated or accidentally stabbing the human body.

[0003] In actual use, every time a patient comes, medical staff needs to take a blood collection needle and pierce the skin at the fingertips to collect blood. In addition, they need to pinch the skin at the collection site to make it bulge for easy needle puncture. Such operation will greatly affect work efficiency. Sometimes the blood collection needle may be forgotten to be replaced and used a second time, causing the risk of blood transmission of some diseases. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a continuous and fast disposable blood collection needle automatic blood collection device.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a continuous and fast disposable blood collection needle automatic blood collection device, comprising a base and a cover body, a raised connecting piece is arranged at one end of the base, the connecting piece is movably connected to the frame through a connecting shaft, and a circle of limiting holes is arranged on the frame, and the opening angle of the frame and the base is adjusted or fixed by rotating the limiting pin, the frame is a hollow structure, and the hollow inner cavity of the frame is a blood collection needle arrangement cavity, and a plurality of disposable blood collection needles are arranged in sequence in the blood collection needle arrangement cavity, and a spring propulsion plate is arranged in the blood collection needle arrangement cavity to propel the disposable blood collection needle to the feeding device, and the blood collection needle is placed on the frame. The head is a feeding circular hole, a feeding device is arranged in the feeding circular hole, a stepper motor is connected to the center hole of the feeding device, an ejector push rod and a discharge push rod are arranged on the upper part of the feeding device; a blood sampling hole and a discharge hole are arranged on the lower part of the ejector push rod and the discharge push rod, respectively, a clamp is arranged at the other end of the base to clamp the finger, a sensor is arranged under the clamp, a cover body is connected above the frame, the stepper motor, the ejector push rod and the discharge push rod are all arranged in the cover body, and a battery and a drive control board are arranged in the cover body, and the drive control board and the battery, the stepper motor, the ejector push rod and the discharge push rod and the sensor are electrically connected.

[0006] Preferably, the middle of the feeding device is a stepper motor connection hole, and its sides are semi-cylindrical groove structures, corresponding to which are the blood collection needle pushing station slot, the blood collection needle blood collection station slot and the blood collection needle dropping station slot.

[0007] Preferably, the disposable blood collection needle includes a shell, a push rod is arranged on the top of the shell, a pressure plate is connected under the push rod, and a spring is arranged on the push rod and fixed between the shell and the pressure plate, and a blood collection needle is arranged at the end of the push rod. After pressing the push rod, the blood collection needle can extend out of the shell and quickly retract into the shell under the action of the spring.

[0008] Preferably, the clamp is composed of two clamping plates fixed in a clamping groove on the base through two clamping plate springs.

[0009] Preferably, the sensor below the clamp is a photoelectric sensor.

[0010] Preferably, the rotation limit pin is composed of two upper and lower cylinders, and a convex strip is provided on the lower cylinder to match and connect with the connecting shaft.

[0011] Compared with the prior art, the advantages and positive effects of the present invention are:

[0012] The present invention can continuously load multiple blood collection needles. The patient only needs to put his finger into the clamp of the base, and the sensor can control the action of the push rod to quickly knock the blood collection needle downward to complete the blood collection function. After sampling a patient, the device of the present invention automatically sends the used blood collection needle to the discharge hole for discharge, and then replaces it with the next new blood collection needle to wait for the next blood collection. The present application saves the trouble of medical staff having to frequently replace blood collection needles, and does not require manual puncture, which effectively improves the efficiency of blood collection, and also avoids the reuse of blood collection needles due to human errors, avoiding the risk of disease transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of an exploded view of the present invention;

[0014] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention;

[0015] Figure 3 It is a side cross-sectional view of the present invention;

[0016] Figure 4 is a schematic diagram of a feeding device of the present invention;

[0017] Figure 5 This is a schematic diagram of the structure of the disposable blood collection needle of the present invention;

[0018] Figure 6 It is an enlarged schematic diagram of the rotary limit pin and the connecting shaft of the present invention;

[0019] Figure 7 It is an enlarged schematic diagram of the clamp of the present invention.

[0020] Legend:

[0021] 1 base, 2 connecting piece, 3 spring push plate, 4 connecting shaft, 5 rotation limit pin, 6 limit hole, 7 blood collection needle arrangement cavity, 8 frame, 9 feeding circular hole, 10 battery, 11 drive control board, 12 cover body, 13 disposable blood collection needle, 14 feeding device, 15 ejection push rod, 16 stepping motor, 17 discharge push rod, 18 blood collection hole, 19 discharge hole, 20 clamp, 21 sensor, 22 clamping groove, 131 shell, 132 push rod, 133 pressure plate, 134 spring, 135 blood collection needle, 141 blood collection needle push-in station slot, 142 blood collection needle blood collection station slot, 143 blood collection needle drop station slot, 201 clamp spring, 202 clamp, 501 convex strip. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0024] Embodiment 1, as Figure 1-7As shown, a continuous and fast disposable blood collection needle automatic blood collection device includes a base 1 and a cover body 12, a protruding connector 2 is provided at one end of the base 1, the connector 2 is movably connected to the frame 8 through a connecting shaft 4, and a circle of limiting holes 6 is provided on the frame 8, and the opening angle of the frame 8 and the base 1 is adjusted or fixed by rotating the limiting pin 5, the frame 8 is a hollow structure, and the hollow inner cavity of the frame 8 is a blood collection needle arrangement cavity 7, and a plurality of disposable blood collection needles 13 are arranged in sequence in the blood collection needle arrangement cavity 7, and a spring pushing plate 3 is provided in the blood collection needle arrangement cavity 7 to push the disposable blood collection needle 13 to the feeding device 14, and a feeding circular hole 9 is provided at the head of the frame 8, and a feeding device 1 is provided in the feeding circular hole 9. 4. A stepper motor 16 is connected to the center hole of the feeding device 14, and an ejector push rod 15 and a discharge push rod 17 are respectively arranged on the upper part of the feeding device 14; a blood sampling hole 18 and a discharge hole 19 are respectively arranged at the lower part of the ejector push rod 15 and the discharge push rod 17, a clamp 20 is arranged at the other end of the base 1 to clamp the finger, and a sensor 21 is arranged below the clamp 20, and the cover body 12 is connected to the upper part of the frame 8, the stepper motor 16, the ejector push rod 15 and the discharge push rod 17 are all arranged in the cover body 12, and a battery 10 and a drive control board 11 are arranged in the cover body 12, and the drive control board 11 and the battery 10, the stepper motor 16, the ejector push rod 15 and the discharge push rod 17 and the sensor 21 are electrically connected.

[0025] In this embodiment, the middle of the feeding device 14 is a stepper motor connection hole 144, and its side surfaces are semi-cylindrical groove structures, corresponding to which are provided a blood collection needle pushing station groove 141, a blood collection needle blood collection station groove 142 and a blood collection needle dropping station groove 143.

[0026] In this embodiment, the disposable blood collection needle 13 includes a shell 141, a push rod 132 is arranged on the top of the shell 131, a pressure plate 133 is connected below the push rod, and a spring 134 is arranged on the push rod 133 to be fixed between the shell and the pressure plate, and a blood collection needle 135 is arranged at the end of the push rod 132. After pressing the push rod 132, the blood collection needle 135 can extend out of the shell 131 and quickly retract into the shell under the action of the spring 134.

[0027] In this embodiment, the clamp 20 is composed of two clamping plates 202 fixed in a clamping groove 22 on the base 1 through two clamping plate springs 201 .

[0028] In this embodiment, the sensor 21 below the clamp 20 is a photoelectric sensor.

[0029] In this embodiment, the rotation limit pin 5 is composed of two upper and lower cylinders, and a convex strip 501 is provided on the lower cylinder to match and connect with the connecting shaft 4.

[0030] Working principle of the present invention: before use, open the cover 12, insert several disposable blood collection needles 13, and the spring on the spring push plate 3 is in a compressed state. Figure 4 As shown, when the disposable blood collection needle 13 enters the blood collection needle push-in station slot 141, the stepper motor 16 turns the disposable blood collection needle on the blood collection needle push-in station slot 141 to the blood collection needle blood collection station slot 142. When the finger is inserted and detected by the sensor 21, the ejector push rod 15 above the blood collection needle blood collection station slot 142 is actuated to quickly impact the disposable blood collection needle 13 downward to pierce the finger skin, and blood collection is completed. After the blood collection is completed, the stepper motor 16 continues to rotate and turns the blood collection needle to the blood collection needle drop station slot 143. The discharge push rod 17 on the blood collection needle drop station slot 143 is actuated to push the used disposable blood collection needle 13 away and drop it, and the work is cyclically performed in sequence. The clamp 20 provided on the base 1 can make the blood collection part protrude, which is convenient for blood collection. When the opening angle of the device needs to be adjusted, it is only necessary to pull out the rotation limit pin 5 a little, and then after adjusting the angle, reinsert the rotation limit pin 5 into the limit hole 6 to fix it.

[0031] It should be noted that the control of the ejection push rod, stepper motor and discharge push rod in the present invention can be achieved through existing drive circuits, and the control of the photoelectric sensor for detecting whether a finger is inserted can be achieved by those skilled in the art based on commonly used control circuits.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in other forms. Any technician familiar with the profession may use the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes and apply them to other fields. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A continuous and fast disposable blood collection needle automatic blood collection device, comprising a base (1) and a cover (12), characterized in that: A protruding connecting member (2) is provided at one end of the base (1), the connecting member (2) is movably connected to the frame (8) via a connecting shaft (4), and a circle of limiting holes (6) is provided on the frame (8), and the opening angle of the frame (8) and the base (1) is adjusted by rotating the limiting pin (5); the frame (8) is a hollow structure, and the hollow inner cavity of the frame (8) is a blood collection needle arrangement cavity (7), and a plurality of disposable blood collection needles (13) are arranged in sequence in the blood collection needle arrangement cavity (7); a spring pushing plate (3) is provided in the blood collection needle arrangement cavity (7), and the disposable blood collection needle (13) is pushed into the blood collection needle arrangement cavity (7). The feeding device (14) is provided at the head of the frame (8) as a feeding circular hole (9), the feeding device (14) is arranged in the feeding circular hole (9), the center hole of the feeding device (14) is connected to a stepping motor (16), the upper part of the feeding device (14) is provided with an ejection push rod (15) and a discharge push rod (17), respectively; the lower parts of the ejection push rod (15) and the discharge push rod (17) are provided with a blood sampling hole (18) and a discharge hole (19), respectively, the other end of the base (1) is provided with a clamp (20) to clamp the finger, and a sensor (21) is provided below the clamp (20). The frame (8) is connected to a cover body (12) above, the stepper motor (16), the ejection push rod (15) and the discharge push rod (17) are all arranged in the cover body (12), and a battery (10) and a drive control board (11) are arranged in the cover body (12), and the drive control board (11) and the battery (10), the stepper motor (16), the ejection push rod (15) and the discharge push rod (17) and the sensor (21) are electrically connected; the middle of the feeding device (14) is a stepper motor connection hole (144), and the side surfaces thereof are respectively semi-cylindrical groove structures, corresponding to which a blood collection needle push rod is arranged The disposable blood collection needle (13) comprises a housing (131), a push rod (132) is arranged on the top of the housing (131), a pressure plate (133) is connected under the push rod, and a spring (134) is arranged on the push rod (133) to be fixed between the housing and the pressure plate, and a blood collection needle (135) is arranged at the end of the push rod (132). After pressing the push rod (132), the blood collection needle (135) can extend out of the housing (131) and quickly retract into the housing under the action of the spring (134).

2. A continuous and fast disposable blood collection needle automatic blood collection device according to claim 1, characterized in that: The clamp (20) is composed of two clamping plates (202) fixed in a clamping groove (22) on the base (1) via two clamping plate springs (201).

3. A continuous and fast disposable blood collection needle automatic blood collection device according to claim 1, characterized in that: The sensor (21) below the clamp (20) is a photoelectric sensor.

4. A continuous and fast disposable blood collection needle automatic blood collection device according to claim 1, characterized in that: The rotation limit pin (5) is composed of two upper and lower cylinders, and a convex strip (501) is provided on the lower cylinder to match and connect with the connecting shaft (4).

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