Adjustable insulin injection positioning equipment

Abstract

The invention discloses adjustable insulin injection positioning equipment which comprises a contact plate, a blood sampling cylinder, a piston rod, a sliding plate, a sliding plate, a matching piece, an inserting piece, a sliding block, a first adjusting piece and a rotating plate. A power part for driving the rotating plate to operate is arranged on the contact plate, the sliding plate is fixed to the blood sampling cylinder, the sliding block is matched with the piston rod through a matching part, and a second adjusting part is arranged between the sliding plate and the contact plate and used for adjusting the inclination angle of the sliding plate; the matching piece is used for being matched with the sliding block which slides in a reciprocating mode and the first adjusting piece to act, so that the blood sampling barrel and the piston rod move and are inserted into the body of a patient, then the piston rod is automatically pulled to complete blood sampling, and finally the blood sampling barrel and the piston rod are synchronously pulled out of the body of the patient. The device is simple in structure and convenient to use, needle inserting, blood sampling and separation after blood sampling can be completed without additional operation and device, the inserting inclination and the inserting depth of a blood sampling tube can be adaptively adjusted, and the device is high in applicability.

Description

Technical Field

[0001] This invention relates to the field of medical blood collection structure technology, specifically to an adjustable insulin injection positioning device. Background Technology

[0002] In current medical practice, accurate insulin injection is crucial for the treatment of diabetic patients. Traditional insulin injection methods mainly rely on manual operation by medical staff, which not only requires medical staff to have high operational skills, but is also easily affected by human factors, such as the accuracy of the injection site, the control of the injection depth, and the precision of the injection dosage. These factors can directly affect the patient's treatment effect and quality of life. With the development of medical technology, some adjustable insulin injection positioning devices have gradually appeared on the market. These devices are designed to assist medical staff in controlling the insulin injection process more accurately through mechanical means. However, existing adjustable insulin injection positioning devices still have some shortcomings in use. When using existing adjustable insulin injection positioning devices, the blood collection tube is first inserted into the patient's body by pushing the device, then the piston rod is pulled out by the pulling device to complete the blood collection, and finally the blood collection tube is retracted by pushing the device. The coordination of the pushing device and the pulling device is inconvenient to operate.

[0003] Therefore, we propose an adjustable insulin injection positioning device. Summary of the Invention

[0004] The purpose of this invention is to provide an adjustable insulin injection positioning device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides an adjustable insulin injection positioning device, including a contact plate, a blood collection tube on the contact plate, and a piston rod that is movably fitted inside the blood collection tube; It also includes a slide plate, a sliding plate, a mating part, and a plug-in part. A slider is slidably fitted on the slide plate. A first adjusting part that presses against the slider is slidably controlled on the slide plate. A rotating plate is rotatably connected to the side of the contact plate through the plug-in part. A power member that drives the rotating plate is provided on the contact plate. The slide plate is fixed to the blood collection tube. The slider and the piston rod are mated through the mating part. A second adjusting part is provided between the sliding plate and the contact plate. The second adjusting part is used to adjust the tilt angle of the sliding plate. The mating component is used to cooperate with the reciprocating sliding slider and the first adjusting component, so that the blood collection tube and the piston rod first move and insert into the patient's body, then automatically pull the piston rod to complete the blood collection, and finally the blood collection tube and the piston rod are synchronously pulled out from the patient's body.

[0006] Preferably, the first adjusting member includes a first wedge block and a threaded rod, the top of the first wedge block is connected to an adjusting plate, and the threaded rod is threadedly connected to both the first wedge block and the adjusting plate.

[0007] Preferably, a second wedge block is fixedly connected to the bottom of the slider, and a wedge groove is provided on the slide plate. Both the first wedge block and the second wedge block slide in cooperation with the wedge groove, and the bottom of the threaded rod passes through the first wedge block and is pressed and fixed against the bottom surface of the wedge groove.

[0008] Preferably, the power component includes a motor fixedly embedded in the contact plate, the output shaft of the motor is connected to a connecting plate, and the end of the connecting plate is rotatably connected to the end of the rotating plate.

[0009] Preferably, the connecting plate has multiple evenly distributed adjustment slots, and the output shaft of the motor is inserted and fixed to the adjustment slots.

[0010] Preferably, the connector includes a connector shaft and a connector post fixedly connected to the rotating plate. A rectangular rod is fixedly connected to the middle of the connector shaft and passes through the connector post. An elastic compression member is hung between the connector post and the connector shaft. A connector groove is opened on the side of the slider. Both the connector post and the connector shaft are located in the connector groove and can move.

[0011] Preferably, a friction plate is fixedly connected to the bottom of the sliding plate, and a friction groove is formed on the top surface of the sliding plate to slide and engage with the friction plate.

[0012] Preferably, the second adjusting member includes a first hinge plate and a second hinge plate rotatably connected to the contact plate. A T-slot is provided at the bottom of the sliding plate. A threaded rotating rod that passes through the T-slot is rotatably connected to the sliding plate. A rotating sliding block that is rotatably connected to the threaded rotating rod is fixedly connected to the end of the first hinge plate. A third hinge plate is hinged to the end of the second hinge plate. A movable sliding block that is threadedly connected to the threaded rotating rod is fixedly connected to the end of the third hinge plate.

[0013] Preferably, a connecting plate is fixedly connected to the end of the threaded rotating rod, and a pressing post that abuts against the sliding plate is inserted into the end of the connecting plate. A limiting groove is formed on the pressing post, and an elastic plate that abuts against the limiting groove is provided on the threaded rotating rod.

[0014] Preferably, the mating component includes a baffle that is rotatably connected to the slider via a torsion spring, a mating plate that is fixedly connected to the piston rod, and an L-shaped plate that is fixedly connected to one of the adjusting plates. The mating plate mates with the L-shaped plate and the baffle, and the top height of the L-shaped plate is lower than the bottom height of the baffle.

[0015] Compared with the prior art, the advantages of the present invention are as follows: First, the patient is fixed in place by an external clamping device. Then, the contact plate is attached to the patient's skin. The angles of the slide plate, sliding plate, and blood collection tube are adjusted by the second adjusting component so that the needle on the blood collection tube is aligned with the collection position at a suitable tilt angle, which facilitates subsequent insertion. Then, by activating the power component, the rotating plate drives the slider to reciprocate. It first touches and presses against one of the first adjusting components, thereby driving the slide plate to move, so that the blood collection tube and the piston rod move simultaneously, and the needle is inserted into the patient's body. Then the slider moves toward another first adjusting component, the baffle moves synchronously, driving the mating plate and piston rod to move, the blood collection tube remains in the inserted position, and the piston rod moves away from the blood collection tube; Finally, the slide, blood collection tube, and piston rod move synchronously, thereby removing the needle of the blood collection tube from the patient's body; This method is simple and convenient to operate, and can complete the needle insertion, blood collection, and removal of the needle without any additional operation or device. In addition, the device can adaptively adjust the insertion tilt and depth of the blood collection tube, making it highly applicable. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a top view of the overall structure of the present invention; Figure 3 This is a schematic diagram showing the disassembled structure of the first adjusting member and the second adjusting member of the present invention; Figure 4 This is a cross-sectional structural diagram of the second adjusting member and the connecting plate of the present invention; Figure 5 This is a schematic cross-sectional view of the sliding plate of the present invention; Figure 6 This is a schematic diagram of the disassembled structure of the second adjusting member of the present invention; Figure 7 This is a schematic diagram of the cooperation structure between the first adjusting member, the slider, and the sliding plate of the present invention; Figure 8 This is a schematic diagram showing the disassembled structure of the motor and connecting plate, blood collection tube and piston rod of the present invention; Figure 9 This is a schematic diagram of the disassembled structure of the connector of the present invention; Figure 10 This is a schematic diagram of the mating structure between the piston rod and the first adjusting member of the present invention; Figure 11 This is a schematic diagram of the split structure of the first adjusting member of the present invention.

[0017] In the diagram: 1. Contact plate; 2. Blood collection tube; 3. Piston rod; 4. Slide plate; 5. Sliding plate; 6. Sliding block; 7. Rotating plate; 8. First wedge block; 9. Threaded rod; 10. Adjusting plate; 11. Second wedge block; 12. Wedge groove; 13. Motor; 14. Connecting plate; 15. Adjusting groove; 16. Insert shaft; 17. Insert post; 18. Insert groove; 19. Friction plate; 20. Friction groove; 21. First hinge plate; 22. Second hinge plate; 23. T-slot; 24. Threaded rotating rod; 25. Rotating sliding block; 26. Third hinge plate; 27. Movable sliding block; 28. Baffle; 29. ​​Mating plate; 30. L-shaped plate; 31. Connecting plate; 32. Pressing post; 33. Limiting groove; 34. Elastic plate. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0019] Please see Figures 1-11 The present invention provides an adjustable insulin injection positioning device, including a contact plate 1 (which is stably attached to the patient's skin), a blood collection tube 2 on the contact plate 1, and a piston rod 3 that is movably fitted inside the blood collection tube 2; It also includes: a slide plate 4, a sliding plate 5, a mating part and a plug-in part. A slider 6 is slidably fitted on the slide plate 4. A first adjusting part that presses against the slider 6 is slidably controlled on the slide plate 4. A rotating plate 7 is rotatably connected to the side of the contact plate 1 through a plug-in part. A power component that drives the rotating plate 7 to operate is provided on the contact plate 1. The slide plate 4 is fixed to the blood collection tube 2. The slider 6 and the piston rod 3 are mated together through a mating part. A second adjusting part is provided between the sliding plate 5 and the contact plate 1. The second adjusting part is used to adjust the tilt angle of the sliding plate 5. The mating parts are used to cooperate with the reciprocating sliding slider 6 and the first adjusting parts, so that the blood collection tube 2 and the piston rod 3 move and insert into the patient's body first, then the piston rod 3 is automatically pulled out to complete the blood collection, and finally the blood collection tube 2 and the piston rod 3 are pulled out of the patient's body synchronously. The bottom of the contact plate 1 is provided with Velcro, through which pressure pieces of different thicknesses can be attached, so that the contact plate 1 can be pressed stably against the patient's skin, avoiding unevenness at the blood collection site, which would make it difficult to fix the contact plate 1 stably.

[0020] The operating procedure for this blood collection device is as follows: Step 1: Fix the patient using an external fixation clamp, which is a standard technique and will not be described in detail in this application; Step 2: Place the contact plate 1 onto the patient's skin, and adjust the angles of the slide plate 4, the sliding plate 5, and the blood collection tube 2 using the second adjusting component, so that the needle on the blood collection tube 2 is aligned with the collection position at a suitable tilt angle, making it easier to insert the needle later. Step 3: Start the power unit to make the end of the rotating plate 7 reciprocate. When the slider 6 located in the two first adjusting parts reciprocates, it first touches one of the first adjusting parts, thereby pressing against one of the first adjusting parts and driving the slide plate 4 to move. This causes the blood collection tube 2 and piston rod 3 on the slide plate 4 to move simultaneously, so that the needle on the blood collection tube 2 is inserted into the patient's body. During this process, the baffle 28 rotates adaptively. The baffle 28 is located on the L-shaped plate 30. Step 4: Under the action of the power component, the slider 6 performs a reset movement, moving away from one of the first adjusting components and towards the other first adjusting component. The baffle 28 moves synchronously, driving the mating plate 29 and piston rod 3 to move. Meanwhile, the slide plate 4 does not move under the friction limit of the sliding plate 5. The blood collection tube 2 remains stationary in the insertion position, and the piston rod 3 moves away from the blood collection tube 2, thus completing the blood collection. It is worth noting that during this process, the slider 6 has not yet come into contact with the other first adjusting component. Step 5: Under the action of the power component, the slider 6 contacts another first adjusting component, which drives the other first adjusting component to move the slide plate 4, blood collection tube 2, and piston rod 3 synchronously, thereby removing the needle of the blood collection tube 2 from the patient's body.

[0021] The blood collection tube 2 is detachable and connected to the slide plate 4 for easy replacement and disassembly, facilitating operation.

[0022] The first adjusting component includes a first wedge block 8 and a threaded rod 9. The top of the first wedge block 8 is connected to an adjusting plate 10, and the threaded rod 9 is threadedly connected to both the first wedge block 8 and the adjusting plate 10. The slide plate 4 is provided with a scale groove. By sliding along the wedge groove 12 on the slide plate 4, the positions of the first wedge block 8 and the adjusting plate 10 are adjusted, and the adjusted positions are fixed with the threaded rod 9. At this time, the distance between the adjusting plate 10 and the slider 6 is adjusted, thereby adjusting the moving distance of the blood collection tube 2, that is, adjusting the insertion depth of the needle of the blood collection tube 2, and increasing the adjustability and applicability.

[0023] The mating parts include a baffle 28 that is rotatably connected to the slider 6 via a torsion spring, a mating plate 29 that is fixedly connected to the piston rod 3, and an L-shaped plate 30 that is fixedly connected to one of the adjusting plates 10 (to prevent the disc at the end of the piston rod 3 from going over the adjusting plate 10). The mating plate 29 mates with the L-shaped plate 30 and the baffle 28, and the top height of the L-shaped plate 30 is lower than the bottom height of the baffle 28. In step three, the slider 6 moves, and the baffle 28 first contacts the mating plate 29 on the piston rod 3, making an adaptive rotation, thereby adjusting the position of the baffle 28 from one side of the disc at the end of the piston rod 3 to the other side (that is, adjusting the position of the baffle 28 from one side of the mating plate 29 to the other side). Then the slider 6 contacts the adjusting plate 10, and the baffle 28 is located above the L-shaped plate 30. The slider 6 moves the slide plate 4 by pressing against the adjusting plate 10, thereby moving the blood collection tube 2 and the piston rod 3, so that the needle on the blood collection tube 2 is inserted into the patient's body. In step four, slider 6 performs a reset motion and moves towards another first adjusting component. Baffle 28 moves synchronously. Due to the constraint of slider 6 on the other end of baffle 28 and the action of torsion spring, baffle 28 presses against the other side of mating plate 29, causing piston rod 3 to move synchronously. Slide plate 4 remains stationary due to the cooperation of friction plate 19 and friction groove 20. The needle of blood collection tube 2 remains inserted, and piston rod 3 moves away from blood collection tube 2, thus completing blood collection.

[0024] Among them, the positions of baffle 28 and L-shaped plate 30 are staggered so that they will not touch; It is worth noting that the piston rod 3 can be rotated inside the blood collection tube 2, thereby rotating the mating plate 29, so as to facilitate the replacement of the piston rod 3 or the adjustment of the position of the piston rod 3 (so that the disc at the end of the piston rod 3 can pass over the adjusting plate 10), etc.

[0025] The bottom of the slider 6 is fixedly connected to a second wedge block 11. The slide plate 4 has a wedge groove 12. The first wedge block 8 and the second wedge block 11 are both slidably engaged in the wedge groove 12. The bottom of the threaded rod 9 passes through the first wedge block 8 and is pressed against the bottom surface of the wedge groove 12. The first wedge block 8 and the adjusting plate 10 are moved along the wedge groove 12 to adjust the distance between the adjusting plate 10 and the slider 6. After the positions of the first wedge block 8 and the adjusting plate 10 are determined, the threaded rod 9 is rotated to screw the threaded rod 9 along the adjusting plate 10 and the first wedge block 8. The threaded rod 9 passes through the first wedge block 8 and presses against the bottom surface of the wedge groove 12. Through the reaction, the first wedge block 8 moves upward along the wedge groove 12, so that the first wedge block 8 is tightly pressed against the wedge groove 12, thus completing the fixation of the positions of the first wedge block 8, the adjusting plate 10 and the slide plate 4. The two inclined surfaces of the first wedge block 8 and the inclined surface of the wedge groove 12 are mutually engaged friction surfaces.

[0026] The power component includes a motor 13 fixedly embedded in the contact plate 1. The output shaft of the motor 13 is connected to a connecting plate 14. The end of the connecting plate 14 is rotatably connected to the end of the rotating plate 7. When the motor 13 moves, it drives the end of the connecting plate 14 to make a circular motion, thereby driving one end of the rotating plate 7 to make a circular motion. Since the other end of the rotating plate 7 slides along the slide plate 4 with the slider 6, the other end of the rotating plate 7 makes a reciprocating motion.

[0027] The connecting plate 14 has multiple evenly distributed adjustment slots 15. The output shaft of the motor 13 is inserted and fixed to the adjustment slots 15. By changing the adjustment slots 15 at different locations and inserting them into the output shaft of the motor 13, the circumference radius at the end of the connecting plate 14 changes, and the reciprocating distance of the rotating plate 7 changes. This allows for adjustment of the insertion depth of the needle on the blood collection tube 2. The adjustment slots 15 are cam-shaped, and the output shaft of the motor 13 is synchronously cam-shaped, thus ensuring that the output shaft of the motor 13 rotates the connecting plate 14 through the adjustment slots 15.

[0028] The connector includes a connector shaft 16 and a connector post 17 that is fixedly connected to the rotating plate 7. A rectangular rod that passes through the connector post 17 is fixedly connected to the middle of the connector shaft 16. An elastic compression member is hung between the connector post 17 and the connector shaft 16. A connector groove 18 is opened on the side of the slider 6. The connector post 17 and the connector shaft 16 are both located in the connector groove 18 and move. The power member drives the connecting plate 14 to rotate, so that one end of the rotating plate 7 makes a circular motion, and the other end of the rotating plate 7 moves back and forth along the slide plate 4. At the same time, the slider 6 moves back and forth along the slide plate 4. The other end of the rotating plate 7 moves back and forth at a certain angle relative to the slider 6. The connector post 17 and the connector shaft 16 are located in the connector groove 18 and move back and forth in the connector groove 18. When it is necessary to replace the adjustment slot 15 and make other adjustment slots 15 plugged and fixed with the output shaft of the motor 13, firstly, the movable connecting plate 14 is used to disengage the connecting plate 14 from the output shaft of the motor 13. At this time, the rotating plate 7 moves towards the slider 6, the plugging post 17 moves along the plugging slot 18, the elastic compression member is compressed, and the plugging post 17 slides with the rectangular rod. Then, the movable connecting plate 14 is used to make other adjustment slots 15 correspond to the output shaft of the motor 13, and the restriction on the connecting plate 14 is released. Under the action of the elastic compression member, the adjustment slot 15 is inserted into the output shaft of the motor 13, thereby completing the adjustment of the reciprocating distance of the slider 6. The plug post 17 and the plug shaft 16 are always located in the plug groove 18 and will not come off.

[0029] The bottom of the slide plate 4 is fixedly connected to a friction plate 19. The top surface of the sliding plate 5 is provided with a friction groove 20 that slides with the friction plate 19. Under the action of the power component, the slide plate 4 is driven to move along the sliding plate 5, thereby moving the blood collection tube 2. The needle at the end of the blood collection tube 2 is inserted into the patient's body. Through the sliding cooperation of the friction plate 19 and the friction groove 20, the smooth sliding of the slide plate 4 and the sliding plate 5 is ensured.

[0030] The second adjusting component includes a first hinge plate 21 and a second hinge plate 22 rotatably connected to the contact plate 1. A T-slot 23 is provided at the bottom of the sliding plate 5. A threaded rotating rod 24, passing through the T-slot 23, is rotatably connected to the sliding plate 5. A rotating sliding block 25, rotatably connected to the threaded rotating rod 24, is fixedly connected to the end of the first hinge plate 21. A third hinge plate 26 is hinged to the end of the second hinge plate 22. A movable sliding block 27, threadedly connected to the threaded rotating rod 24, is fixedly connected to the end of the third hinge plate 26. Rotating the threaded rotating rod 24 causes it to rotate relative to the original position of the sliding plate 5. Due to the rotation of the sliding block... When the moving block 25 and the non-threaded section of the threaded rotating rod 24 rotate, the rotating sliding block 25 will not slide along the threaded rotating rod 24, but will only rotate on its original position on the threaded rotating rod 24. The rotation of the threaded rotating rod 24 will drive the threaded sliding block to move along the T-slot 23, thereby driving the third hinge plate 26 to move. The third hinge plate 26 and the second hinge plate 22 will rotate, thereby causing the first hinge plate 21 and the contact plate 1 to rotate. The second hinge plate 22 and the contact plate 1 will rotate, causing the tilt angle of the threaded rotating rod 24 to change, thereby changing the tilt angle of the sliding plate 5 and the slide plate 4, and the corresponding angle of the blood collection tube 2 to change. As the angles of the sliding plate 5 and the sliding plate 4 change, the position of the rotating plate 7 also changes, and the depth of insertion can be adjusted by adjusting the position of the second wedge block 11. It is worth noting that the shapes of the rotating sliding block 25 and the threaded sliding block fit into the T-slot 23, so that the rotating sliding block 25 and the threaded sliding block will not rotate in the T-slot 23, but will only slide in the T-slot 23.

[0031] A connecting plate 31 is fixedly connected to the end of the threaded rotating rod 24. A pressing post 32, which abuts against the sliding plate 5, is inserted into the end of the connecting plate 31. A limiting groove 33 is provided on the pressing post 32. An elastic plate 34, which abuts against the limiting groove 33, is provided on the threaded rotating rod 24. When it is necessary to adjust the tilt angle of the sliding plate 5 and the sliding plate 4 to facilitate the blood collection tube 2 to be inserted into the patient's body at a specific angle, the pressing post 32 is pulled away from the sliding plate 5. The elastic plate 34 deforms, and the pressing post 32 makes a circular motion, thereby causing the connecting plate 31 to make a circular motion. The threaded rotating rod 24 then... The threaded rotating rod 24 rotates relative to the position of the sliding plate 5, causing the movable sliding block 27 to slide along the T-slot 23, causing the third hinge plate 26 to rotate relative to the second hinge plate 22, and the first hinge plate 21 and the second hinge plate 22 to rotate, causing the sliding plate 5 and the slide plate 4 to tilt, thereby adjusting the angle of the blood collection tube 2. Finally, the pressure column 32 is released, and under the action of the elastic plate 34, the pressure column 32 presses against the sliding plate 5, thereby fixing the threaded rotating rod 24 and fixing the angle of the blood collection tube 2. An anti-slip pad can be provided at the end of the pressure column 32 to enhance the fixing effect.

[0032] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "setting," and "forming" should be interpreted broadly; for example, they can refer to fixed connections or settings, detachable connections or settings, or integrated structures; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium, or internal connections between two components; those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0034] In the description of this invention, references to terms such as “embodiment,” “specific example,” or “practical application” indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment is included in at least one embodiment or example of the invention; the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example, and the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] The above embodiments are only used to illustrate the technical solutions of the present invention. Those skilled in the art should understand that the above embodiments do not limit the present invention in any way. All technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of the present invention.

Claims

1. An adjustable insulin injection positioning device, comprising: A contact plate (1) is provided on the contact plate (1), and a blood collection tube (2) is provided inside the blood collection tube (2). A piston rod (3) is movably fitted inside the blood collection tube (2). The invention is characterized by further comprising: a sliding plate (4), a sliding plate (5), a mating component, and a plug-in component. A slider (6) is slidably fitted on the sliding plate (4). A first adjusting component that presses against the slider (6) is slidably controlled on the sliding plate (4). A rotating plate (7) is rotatably connected to the side of the contact plate (1) through the plug-in component. A power component that drives the rotating plate (7) is provided on the contact plate (1). The sliding plate (4) is fixed to the blood collection tube (2). The slider (6) and the piston rod (3) are mated through the mating component. A second adjusting component is provided between the sliding plate (5) and the contact plate (1). The second adjusting component is used to adjust the tilt angle of the sliding plate (5). The fitting component is used to cooperate with the reciprocating sliding slider (6) and the first adjusting component, so that the blood collection tube (2) and the piston rod (3) first move and insert into the patient's body, then automatically pull the piston rod (3) to complete blood collection, and finally the blood collection tube (2) and the piston rod (3) are simultaneously pulled out from the patient's body.

2. The adjustable insulin injection positioning device according to claim 1, characterized in that: The first adjusting component includes a first wedge block (8) and a threaded rod (9). An adjusting plate (10) is connected to the top of the first wedge block (8), and the threaded rod (9) is threadedly connected to both the first wedge block (8) and the adjusting plate (10).

3. The adjustable insulin injection positioning device according to claim 2, characterized in that: The bottom of the slider (6) is fixedly connected to a second wedge block (11), and a wedge groove (12) is provided on the slide plate (4). The first wedge block (8) and the second wedge block (11) are both slidably engaged with the wedge groove (12). The bottom of the threaded rod (9) passes through the first wedge block (8) and is pressed against the bottom surface of the wedge groove (12).

4. The adjustable insulin injection positioning device according to claim 1, characterized in that: The power component includes a motor (13) fixedly embedded in the contact plate (1), and the output shaft of the motor (13) is connected to a connecting plate (14), the end of the connecting plate (14) being rotatably connected to the end of the rotating plate (7).

5. An adjustable insulin injection positioning device according to claim 4, characterized in that: The connecting plate (14) has multiple evenly distributed adjustment slots (15), and the output shaft of the motor (13) is inserted and fixed to the adjustment slots (15).

6. The adjustable insulin injection positioning device according to claim 1, characterized in that: The connector includes a connector shaft (16) and a connector post (17) that is fixedly connected to the rotating plate (7). A rectangular rod that passes through the connector post (17) is fixedly connected to the middle of the connector shaft (16). An elastic compression member is hung between the connector post (17) and the connector shaft (16). A connector groove (18) is opened on the side of the slider (6). The connector post (17) and the connector shaft (16) are both located in the connector groove (18) and move.

7. The adjustable insulin injection positioning device according to claim 1, characterized in that: The bottom of the slide plate (4) is fixedly connected to a friction plate (19), and the top surface of the slide plate (5) is provided with a friction groove (20) that slides with the friction plate (19).

8. An adjustable insulin injection positioning device according to claim 1, characterized in that: The second adjusting component includes a first hinge plate (21) and a second hinge plate (22) rotatably connected to the contact plate (1). A T-slot (23) is provided at the bottom of the sliding plate (5). A threaded rotating rod (24) that passes through the T-slot (23) is rotatably connected to the sliding plate (5). A rotating sliding block (25) that is rotatably connected to the threaded rotating rod (24) is fixedly connected to the end of the first hinge plate (21). A third hinge plate (26) is hinged to the end of the second hinge plate (22). A movable sliding block (27) that is threadedly connected to the threaded rotating rod (24) is fixedly connected to the end of the third hinge plate (26).

9. An adjustable insulin injection positioning device according to claim 2, characterized in that: The mating components include a baffle (28) rotatably connected to the slider (6) via a torsion spring, a mating plate (29) fixedly connected to the piston rod (3), and an L-shaped plate (30) fixedly connected to one of the adjusting plates (10). The mating plate (29) mates with the L-shaped plate (30) and the baffle (28), and the top height of the L-shaped plate (30) is lower than the bottom height of the baffle (28).

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