A subcutaneous precise quantitative injection booster device and injection method

Abstract

The present invention relates to the technical field of subcutaneous injection, and in particular to a subcutaneous precise quantitative injection booster device and injection method, including a first semi-cylinder and a second semi-cylinder, etc., wherein the first semi-cylinder is hingedly connected to the second semi-cylinder on the right side, and the second semi-cylinder is covered on the first semi-cylinder to form a complete cylinder, and two syringe placement grooves are provided inside the first semi-cylinder and inside the second semi-cylinder, and needle placement grooves are provided on the left side of the first semi-cylinder and the top of the second semi-cylinder, and syringe limiting grooves are provided inside the first semi-cylinder and inside the second semi-cylinder. The present invention drives the screw to rotate through the output shaft of the stepper motor, thereby driving the push block to move to the left, and the push block pushes the push rod of the syringe to move to the left, so that the liquid medicine in the syringe flows out from the needle to perform subcutaneous injection, and the running time of the stepper motor can be set according to the required amount of medicine, and quantitative injection can be accurately performed to reduce the error of the amount of medicine.

Description

Technical Field

[0001] The present invention relates to the technical field of subcutaneous injection, and in particular to a subcutaneous precise quantitative injection booster device and an injection method. Background Art

[0002] When the drug needs to take effect quickly or is not suitable for oral administration, it is usually administered through subcutaneous injection to achieve the effect of treating the disease. During the injection process, a booster device is usually used to control the amount of drug for quantitative administration.

[0003] The existing electronic syringe booster device structure generally includes a drive motor, a screw, an injection needle bracket, a propulsion bracket, etc., and the parameter settings are mostly the number of injections. When calculating a single dose, the specification capacity of the syringe is divided by the number of times to obtain the single dose. When the amount of medicine in the syringe is inaccurate, it will also be calculated according to the specification capacity of the syringe, resulting in a large single dose error. At the same time, when the number of injections is used as a parameter setting, it is not conducive to the nurse's interruption of use during the injection process and the second use, because if the injection is stopped during the injection process, the accuracy of the amount of medicine will change. At the same time, when the nurse calculates the remaining number of uses by himself during the second use, there will be a large error. Summary of the invention

[0004] In order to overcome the disadvantages that when the amount of medicine in the syringe is inaccurate, it will also be calculated according to the specification capacity of the syringe, resulting in a large single dose error, and when the nurse calculates the remaining number of uses by himself when continuing to use it for the second time, there will also be a large error, the present invention provides a subcutaneous precise quantitative injection booster device and injection method.

[0005] The technical solution is: a subcutaneous precise quantitative injection booster device, including a first semi-cylinder, a second semi-cylinder, a mounting shell, a screw, a stepping motor, a moving block, a sliding shaft and an exhaust mechanism. The first semi-cylinder is hingedly connected to the second semi-cylinder on the right side, and the second semi-cylinder is covered on the first semi-cylinder to form a complete cylinder. Two syringe placement grooves are opened inside the first semi-cylinder and inside the second semi-cylinder, needle placement grooves are opened on the left side of the first semi-cylinder and the top of the second semi-cylinder, syringe limiting grooves are opened inside the first semi-cylinder and the second semi-cylinder, the bottom of the first semi-cylinder is connected to the mounting shell, the mounting shell is rotatably connected with the screw, the mounting shell is connected to the stepping motor, the output shaft of the stepping motor is connected to the screw, the moving block is connected to the screw by a thread, the top of the moving block is connected to the sliding shaft, the sliding shaft slides through the bottom of the first semi-cylinder, and the first semi-cylinder is provided with an exhaust mechanism for discharging excess air in the syringe.

[0006] Further explanation, the exhaust mechanism includes a sliding rod, a push block, a guide shell, a sliding column, a first spring, a connecting rod and a ball. The sliding shaft is slidably connected with the sliding rod, the sliding rod is connected with the push block, the upper end of the sliding shaft is connected with the guide shell, the sliding column is slidably connected in the guide shell, the first spring is connected between the sliding column and the guide shell, the sliding column is rotatably connected with the connecting rod, the connecting rod and the push block are rotatably connected, and the upper end of the sliding column is rotatably connected with the ball. After the second semi-cylinder is covered on the first semi-cylinder, the second semi-cylinder will push the ball to move downward, the ball drives the sliding column to move downward, the sliding column drives the push block to move to the left through the connecting rod, and the push block pushes the push rod of the syringe to discharge excess air in the syringe.

[0007] Further description, it also includes a limiting mechanism, which includes a guide rod, a connecting plate, a slide plate, a second spring, a first finger block, an arc plate, a limiting ring, a second finger block and a clamping assembly. Guide rods are connected to the front and rear sides of the mounting shell, the two guide rods are commonly connected to a connecting plate, the two guide rods are commonly slidably connected to a slide plate, a second spring is connected between the mounting shell and the slide plate, the first finger block is connected to the right side of the slide plate, the arc plate is connected to the left side of the slide plate, the limiting ring is connected to the arc plate, after the second semi-cylinder cover is on the first semi-cylinder, the limiting ring can be put on the first semi-cylinder and the second semi-cylinder to limit the second semi-cylinder, the second finger block is connected to the right side of the second semi-cylinder, and a clamping assembly for clamping the first finger block is provided on the mounting shell.

[0008] Further description, the locking assembly includes a fixed hook and an elastic hook. The mounting shell is connected with the fixed hook, and the first finger block is connected with the elastic hook. The fixed hook can hook the elastic hook to lock the first finger block.

[0009] Further description, it also includes an unlocking mechanism, which includes a pull block and a wedge block. The pull block is slidably connected to the first finger block, the top of the pull block is connected to the wedge block, and a protrusion is provided at the bottom of the elastic hook. The wedge block can push the protrusion on the elastic hook to move the elastic hook upward and disengage from the fixed hook.

[0010] Further description, it also includes a supporting mechanism, which includes a sliding frame, a supporting shaft and a fixing component. The sliding frame is slidably connected to the two guide rods, the top of the sliding frame is connected to the supporting shaft, and the mounting shell is provided with a fixing component for fixing the sliding frame.

[0011] Further description, the fixing assembly includes a vertical plate and a screw rod. The bottom of the mounting shell is connected to the vertical plate. Round holes are evenly spaced on the vertical plate. The sliding frame is connected to the screw rod through a thread. The screw rod can be inserted into the round hole to fix the sliding frame.

[0012] The present invention also provides a method for injecting a subcutaneous precise quantitative injection booster device, comprising the following steps:

[0013] S1: Place the syringe into the syringe placement slot, place the needle into the needle placement slot, and place the flange on the syringe into the syringe limiting slot;

[0014] S2: Cover the second half cylinder on the first half cylinder, and combine the first half cylinder and the second half cylinder into a complete cylinder, which wraps the syringe;

[0015] S3: The output shaft of the stepper motor drives the screw to rotate, the screw drives the moving block to move to the left, the moving block drives the push block to move to the left, the push block pushes the push rod of the syringe to move to the left, so that the liquid in the syringe flows out of the needle for subcutaneous injection.

[0016] Compared with the prior art, the present invention has the following advantages: 1. The present invention drives the screw to rotate through the output shaft of the stepper motor, thereby driving the push block to move to the left. The push block pushes the push rod of the syringe to move to the left, so that the medicine in the syringe flows out of the needle for subcutaneous injection. The running time of the stepper motor can be set according to the required amount of medicine, and quantitative injection can be performed accurately to reduce the error of the medicine amount.

[0017] 2. By pulling the first finger block to the right, the limiting ring can be driven to move to the right, so that the limiting ring is sleeved on the second semi-cylinder and the first semi-cylinder, thereby limiting the second semi-cylinder and preventing the second semi-cylinder from rotating upward.

[0018] 3. By placing the middle finger on the first finger block, the index finger on the second finger block, and the thumb on the support shaft, it is convenient for the nurse to hold the first half cylinder and the second half cylinder, which is convenient for the nurse to perform subcutaneous injection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional structural schematic diagram of the present invention is shown.

[0020] Figure 2 A three-dimensional structural schematic diagram of the syringe placement groove, the needle placement groove and the syringe limiting groove of the present invention is shown.

[0021] Figure 3 A cross-sectional view of a mounting housing of the present invention is shown.

[0022] Figure 4 A first stereoscopic structural schematic diagram of the exhaust mechanism of the present invention is shown.

[0023] Figure 5 A second three-dimensional structural schematic diagram of the exhaust mechanism of the present invention is shown.

[0024] Figure 6 A three-dimensional structural schematic diagram of the limiting mechanism of the present invention is shown.

[0025] Figure 7 A three-dimensional structural schematic diagram of the fixed hook and the elastic hook of the present invention is shown.

[0026] Figure 8 A three-dimensional structural schematic diagram of the unlocking mechanism of the present invention is shown.

[0027] Fig. 9 A three-dimensional structural schematic diagram of the support mechanism of the present invention is shown.

[0028] Explanation of the accompanying drawings: 1. first semi-cylinder, 2. second semi-cylinder, 3. syringe placement groove, 4. needle placement groove, 5. syringe limit groove, 6. mounting shell, 7. screw, 8. stepping motor, 9. moving block, 10. sliding shaft, 11. sliding rod, 12. pushing block, 13. guide shell, 14. sliding column, 15. first spring, 16. connecting rod, 17. ball, 18. guide rod, 19. connecting plate, 20. slide plate, 21. second spring, 22. first finger block, 23. arc plate, 24. limit ring, 25. second finger block, 26. fixed hook, 27. elastic hook, 28. pull block, 29. wedge block, 30. protrusion, 31. sliding frame, 32. support shaft, 33. vertical plate, 34. round hole, 35. screw. DETAILED DESCRIPTION

[0029] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0030] Example 1: Figure 1-Figure 5 As shown, a subcutaneous precise quantitative injection booster device includes a first semi-cylinder 1, a second semi-cylinder 2, a mounting shell 6, a screw rod 7, a stepping motor 8, a moving block 9, a sliding shaft 10 and an exhaust mechanism. The first semi-cylinder 1 is hingedly connected to the second semi-cylinder 2 on the right side, and the second semi-cylinder 2 is covered on the first semi-cylinder 1 to form a complete cylinder. Two syringe placement grooves 3 are opened inside the first semi-cylinder 1 and inside the second semi-cylinder 2, and needle placement grooves 4 are opened on the left side of the first semi-cylinder 1 and the top of the second semi-cylinder 2. Syringe limiting grooves 5 are provided inside the first semi-cylinder 1 and the second semi-cylinder 2. A mounting shell 6 is connected to the right side of the bottom of the first semi-cylinder 1. A screw rod 7 is rotatably connected inside the mounting shell 6. A stepper motor 8 is connected to the right side of the mounting shell 6. The output shaft of the stepper motor 8 is connected to the right end of the screw rod 7. A moving block 9 is connected to the screw rod 7 through a thread. A sliding shaft 10 is connected to the top of the moving block 9. The sliding shaft 10 slides through the bottom of the first semi-cylinder 1. An exhaust mechanism for exhausting excess air in the syringe is provided on the first semi-cylinder 1.

[0031] like Figure 1 , Figure 4 and Figure 5As shown, the exhaust mechanism includes a slide rod 11, a push block 12, a guide shell 13, a sliding column 14, a first spring 15, a connecting rod 16 and a ball 17. The slide rod 11 is slidably connected to the slide shaft 10, the left end of the slide rod 11 is connected to the push block 12, the upper end of the slide shaft 10 is connected to the guide shell 13, the sliding column 14 is slidably connected in the guide shell 13, the first spring 15 is connected between the bottom of the sliding column 14 and the bottom of the guide shell 13, the front and rear sides of the sliding column 14 are rotatably connected to the connecting rod 16, the left end of the connecting rod 16 is rotatably connected to the right side of the push block 12, and the upper end of the sliding column 14 is rotatably connected to the ball 17.

[0032] The nurse puts the syringe into the syringe placement slot 3, the needle into the needle placement slot 4, the flange on the syringe into the syringe limiting slot 5, the syringe limiting slot 5 can limit the syringe, and rotates the second semi-cylinder 2 downward, covers the second semi-cylinder 2 on the first semi-cylinder 1, and combines into a complete cylinder, the cylinder wraps the syringe, and at the same time, the second semi-cylinder 2 will push the ball 17 to move downward, the ball 17 drives the sliding column 14 to move downward, the first spring 15 is compressed, the sliding column 14 drives the connecting rod 16 to rotate downward, the connecting rod 16 drives the push block 12 to move to the left, and the push block 12 pushes the push rod of the syringe to move to the left to discharge the excess air in the syringe, and then the nurse moves the syringe as needed. The running time of the stepper motor 8 is set according to the dosage, and quantitative injection is performed accurately to reduce the error of the dosage. The output shaft of the stepper motor 8 drives the screw rod 7 to rotate, and the screw rod 7 drives the moving block 9 to move to the left. The moving block 9 drives the sliding shaft 10 to move to the left. The sliding shaft 10 drives the sliding rod 11 and the pushing block 12 to move to the left. The pushing block 12 pushes the push rod of the syringe to move to the left, so that the liquid medicine in the syringe flows out of the needle for subcutaneous injection. The sliding shaft 10 can also drive the guide shell 13 to move to the left, and the guide shell 13 drives the sliding column 14 to move to the left. The sliding column 14 drives the ball 17 to move to the left, and the ball 17 rolls on the second semi-cylinder 2, thereby reducing friction and avoiding wear of the second semi-cylinder 2.

[0033] Embodiment 2: Based on embodiment 1, Figure 1 , Figure 6 and Figure 7As shown, it also includes a limiting mechanism, which includes a guide rod 18, a connecting plate 19, a slide plate 20, a second spring 21, a first finger block 22, an arc plate 23, a limiting ring 24, a second finger block 25 and a clamping assembly. The front and rear sides of the mounting shell 6 are connected to the guide rods 18, the left ends of the two guide rods 18 are commonly connected to the connecting plate 19, the two guide rods 18 are commonly slidably connected to the slide plate 20, the guide rods 18 are sleeved with the second spring 21, the two ends of the second spring 21 are respectively connected to the mounting shell 6 and the slide plate 20, the first finger block 22 is connected to the lower right side of the slide plate 20, the arc plate 23 is connected to the upper left side of the slide plate 20, the limiting ring 24 is connected to the left side of the arc plate 23, the second finger block 25 is connected to the upper right side of the second semi-cylinder 2, and the mounting shell 6 is provided with a clamping assembly for clamping the first finger block 22.

[0034] like Figure 7 As shown, the locking assembly includes a fixed hook 26 and an elastic hook 27 . The lower left portion of the mounting shell 6 is connected to the fixed hook 26 , and the upper portion of the first finger block 22 is connected to the elastic hook 27 .

[0035] like Figure 1 and Figure 8 As shown, an unlocking mechanism is also included, which includes a pull block 28 and a wedge block 29. The pull block 28 is slidably connected to the upper part of the first finger block 22, and the wedge block 29 is connected to the right side of the top of the pull block 28. A protrusion 30 is provided at the bottom of the elastic hook 27.

[0036] like Figure 1 and Fig. 9 As shown, a supporting mechanism is also included, which includes a sliding frame 31, a supporting shaft 32 and a fixing component. The sliding frame 31 is slidably connected to the two guide rods 18, the supporting shaft 32 is connected to the top right side of the sliding frame 31, and a fixing component for fixing the sliding frame 31 is provided on the mounting shell 6.

[0037] like Fig. 9 As shown, the fixing assembly includes a vertical plate 33 and a screw rod 35. The bottom of the mounting shell 6 is connected to the vertical plate 33. Round holes 34 are evenly spaced on the vertical plate 33. The left part of the sliding frame 31 is connected to the screw rod 35 through a thread.

[0038] After the second semi-cylinder 2 is covered on the first semi-cylinder 1, the first finger block 22 is pulled to the right, and the first finger block 22 drives the slide plate 20 to move to the right, the second spring 21 is compressed, and the slide plate 20 drives the arc plate 23 to move to the right, and the arc plate 23 drives the limiting ring 24 to move to the right, and the limiting ring 24 is sleeved on the second semi-cylinder 2 and the first semi-cylinder 1, thereby limiting the second semi-cylinder 2 to prevent the second semi-cylinder 2 from rotating upward. The first finger block 22 can also drive the elastic hook 27 to move to the right when moving to the right. The elastic hook 27 will contact the fixed hook 26 during the process of moving to the right, and the fixed hook 26 will block the elastic hook 27, so that the elastic hook 27 rotates upward. After the elastic hook 27 passes over the fixed hook 26, the elastic hook 27 rotates downward, and the fixed hook 26 can hook the elastic hook 27 to fix the first finger block 22, thereby fixing the limiting ring 24, and the nurse can move the sliding frame 31 left and right, driving the support shaft 32 left and right The nurse then places the middle finger on the first finger block 22, the index finger on the second finger block 25, and the thumb on the support shaft 32, so that the nurse can hold the first semi-cylinder 1 and the second semi-cylinder 2 for subcutaneous injection. After the injection is completed, the nurse pulls the pull block 28 to the left, and the pull block 28 drives the wedge block 29 to move to the left. The wedge block 29 pushes the protrusion 30 on the elastic hook 27 to rotate the elastic hook 27 upward, so that the elastic hook 27 and the fixed hook 26 are disengaged, and the fixed hook 26 no longer hooks the elastic hook 27. Under the action of the second spring 21, the slide plate 20 moves to the left, and the slide plate 20 drives the arc plate 23 to move to the left, and the arc plate 23 drives the limit ring 24 to move to the left, and the limit ring 24 no longer limits the second semi-cylinder 2.

[0039] The present invention also provides a method for injecting a subcutaneous precise quantitative injection booster device, comprising the following steps:

[0040] S1: Place the syringe into the syringe placement slot 3, place the needle into the needle placement slot 4, and place the flange on the syringe into the syringe limiting slot 5;

[0041] S2: Cover the second semi-cylinder 2 on the first semi-cylinder 1, and combine the first semi-cylinder 1 and the second semi-cylinder 2 into a complete cylinder, which wraps the syringe;

[0042] S3: The output shaft of the stepper motor 8 drives the screw rod 7 to rotate, the screw rod 7 drives the moving block 9 to move leftward, the moving block 9 drives the push block 12 to move leftward, the push block 12 pushes the push rod of the syringe to move leftward, so that the liquid medicine in the syringe flows out from the needle for subcutaneous injection.

[0043] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A subcutaneous precise quantitative injection booster device, comprising a first semi-cylinder (1) and a second semi-cylinder (2), wherein the first semi-cylinder (1) is hingedly connected to the second semi-cylinder (2) on the right side, and the second semi-cylinder (2) covers the first semi-cylinder (1) to form a complete cylinder, characterized in that: The device also comprises a mounting shell (6), a screw rod (7), a stepping motor (8), a moving block (9), a sliding shaft (10) and an exhaust mechanism. Two syringe placement grooves (3) are respectively provided inside the first semi-cylinder (1) and inside the second semi-cylinder (2). A needle placement groove (4) is respectively provided on the left side of the first semi-cylinder (1) and the top of the second semi-cylinder (2). A syringe limiting groove (5) is respectively provided inside the first semi-cylinder (1) and inside the second semi-cylinder (2). The bottom of the first semi-cylinder (1) is connected to a mounting shell (6). A screw rod (7) is rotatably connected inside the mounting shell (6). The mounting shell (6) is connected to a stepping motor (8). The output shaft of the stepping motor (8) is connected to the screw rod (7). The moving block (9) is connected to the screw rod (7) via a thread. The top of the moving block (9) is connected to a sliding shaft (10). The sliding shaft (10) slides through the bottom of the first semi-cylinder (1). The first semi-cylinder (1) is provided with an exhaust mechanism for exhausting excess air in the syringe. The exhaust mechanism comprises a slide rod (11), a push block (12), a guide shell (13), a slide column (14), a first spring (15), a connecting rod (16) and a ball (17); the slide rod (11) is slidably connected to the slide shaft (10); the push block (12) is connected to the slide rod (11); the upper end of the slide shaft (10) is connected to the guide shell (13); the slide column (14) is slidably connected inside the guide shell (13); the first spring (15) is connected between the slide column (14) and the guide shell (13); the slide column (14) ) is rotatably connected to a connecting rod (16), the connecting rod (16) and the push block (12) are rotatably connected, and the upper end of the sliding column (14) is rotatably connected to a ball (17). After the second semi-cylinder (2) is covered on the first semi-cylinder (1), the second semi-cylinder (2) pushes the ball (17) to move downward, and the ball (17) drives the sliding column (14) to move downward. The sliding column (14) drives the push block (12) to move to the left through the connecting rod (16), and the push block (12) pushes the push rod of the syringe to discharge excess air in the syringe; The invention also includes a limiting mechanism, which includes a guide rod (18), a connecting plate (19), a slide plate (20), a second spring (21), a first finger block (22), an arc plate (23), a limiting ring (24), a second finger block (25) and a positioning assembly. The front and rear sides of the mounting shell (6) are connected to the guide rods (18), the two guide rods (18) are commonly connected to the connecting plate (19), the two guide rods (18) are commonly slidably connected to the slide plate (20), and the second spring (21) is connected between the mounting shell (6) and the slide plate (20). ), a first finger block (22) is connected to the right side of the slide plate (20), an arc plate (23) is connected to the left side of the slide plate (20), a limiting ring (24) is connected to the arc plate (23), after the second semi-cylinder (2) covers the first semi-cylinder (1), the limiting ring (24) can be sleeved onto the first semi-cylinder (1) and the second semi-cylinder (2) to limit the second semi-cylinder (2), a second finger block (25) is connected to the right side of the second semi-cylinder (2), and a locking assembly for locking the first finger block (22) is provided on the mounting shell (6).

2. A subcutaneous precise quantitative injection booster device according to claim 1, characterized in that: The locking assembly comprises a fixed hook (26) and an elastic hook (27); the mounting shell (6) is connected to the fixed hook (26); the first finger block (22) is connected to the elastic hook (27); the fixed hook (26) can hook the elastic hook (27) to lock the first finger block (22).

3. A subcutaneous precise quantitative injection booster device according to claim 2, characterized in that: The invention also comprises an unlocking mechanism, which comprises a pull block (28) and a wedge block (29), wherein the pull block (28) is slidably connected to the first finger block (22), the top of the pull block (28) is connected to the wedge block (29), and a protrusion (30) is provided at the bottom of the elastic hook (27), and the wedge block (29) can push the protrusion (30) on the elastic hook (27), so that the elastic hook (27) moves upward and is out of contact with the fixed hook (26).

4. A subcutaneous precise quantitative injection booster device according to claim 1, characterized in that: The invention also comprises a support mechanism, which comprises a sliding frame (31), a support shaft (32) and a fixing assembly, wherein the two guide rods (18) are slidably connected to the sliding frame (31), the top of the sliding frame (31) is connected to the support shaft (32), and the mounting shell (6) is provided with a fixing assembly for fixing the sliding frame (31).

5. A subcutaneous precise quantitative injection booster device according to claim 4, characterized in that: The fixing assembly comprises a vertical plate (33) and a screw rod (35). The bottom of the mounting shell (6) is connected to the vertical plate (33). Round holes (34) are evenly spaced on the vertical plate (33). The sliding frame (31) is connected to the screw rod (35) via a thread. The screw rod (35) can be inserted into the round hole (34) to fix the sliding frame (31).

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