A portable booster suitable for a syringe

Abstract

The present invention relates to the field of medical device technology, specifically a portable booster adapted for a syringe, comprising a shell, a booster assembly disposed inside the shell, the booster assembly comprising a gear, a rack and a connecting plate, a clamping assembly disposed on one side of the connecting plate, a piston disposed on one side of the clamping assembly, the booster assembly being used to push and pull the piston to adjust the in and out of the liquid medicine, and the clamping assembly being used to fix the piston. In the present invention, the distance moved by the piston during the drug extraction process can be measured by a distance sensor, and combined with the time required for the injection of the liquid medicine, the controller can calculate the injection speed, thereby calculating the rotation speed of the output shaft of the servo motor, and the gear is driven to rotate by the output shaft of the servo motor, so that the rack drives the piston to move in a straight line through the clamping assembly connected to the connecting plate, so that the piston moves at a uniform speed, thereby ensuring the consistency of the injection speed throughout the process.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, in particular to a portable booster adapted for a syringe. Background Art

[0002] A syringe is a common medical device used to inject medicine, liquid or other substances into the human body or extract samples from the human body. A syringe usually consists of a syringe barrel, a piston, a needle and a protective cap. The syringe barrel is a hollow cylinder used to hold liquid medicine or other substances; the piston is the moving part in the barrel, which adjusts the flow of liquid medicine by pushing and pulling the piston; the needle is connected to one end of the barrel and is used to inject or extract liquid medicine; the protective cap is used to protect the needle and prevent contamination. Syringes are widely used in the medical field, and they are also used for sampling, experimental operations, etc. in laboratory environments.

[0003] When injecting a patient with a drug solution through a syringe, medical staff need to use the syringe to extract the correct dose of drug solution from the medicine bottle or medicine container, then insert the syringe needle with the drug solution extracted into the pre-sterilized injection site, and then slowly and steadily push the syringe piston to inject the drug solution into the patient's body. During the injection process, medical staff need to closely observe the patient's reaction and ensure that the speed and method of drug injection are correct.

[0004] Existing drug injection is mainly completed by manual injection by medical staff. During the manual injection of the syringe, the medical staff's hands need to maintain a fixed injection posture. Therefore, manual injection is easily affected by the operator's hand shaking or hand fatigue due to long injection time, resulting in unstable injection speed and difficulty in maintaining consistent flow and speed. Unstable injection speed, fast or slow, not only easily causes patients to feel additional pain or discomfort, but also affects the absorption and distribution of the drug solution, reduces the efficacy of the drug, and may increase the risk of local tissue damage during injection. In addition, the dosage control of manual injection is affected by the operator's skill level and hand stability, which is prone to dosage errors, resulting in inaccurate drug injection dosage. Summary of the invention

[0005] The object of the present invention is to provide a portable booster adapted for a syringe to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A portable booster adapted for a syringe comprises a shell: a booster assembly is arranged inside the shell, the booster assembly comprises a gear, a rack and a connecting plate, a clamping assembly is arranged on one side of the connecting plate, a piston is arranged on one side of the clamping assembly, the booster assembly is used to push and pull the piston to adjust the inflow and outflow of liquid medicine, and the clamping assembly is used to fix the piston;

[0008] A locking assembly is arranged inside the shell, and a syringe is sleeved on the outer surface of the piston. The locking assembly is used to lock the syringe.

[0009] Through the above technical solution, the syringe can be fixed inside the shell by using the locking assembly, and then the piston can be clamped by using the clamping assembly, and then the movement of the piston can be controlled by the boosting assembly, thereby adjusting the inflow and outflow of the drug solution.

[0010] Furthermore, a servo motor is installed inside the shell, the output shaft of the servo motor is connected to the gear, one side of the servo motor is connected to a driver, one side of the driver is connected to a controller, one side of the controller is provided with buttons, and a display screen is installed inside the shell, and the display screen is electrically connected to the controller.

[0011] Through the above technical solution, the controller controls the output shaft of the servo motor to rotate through the driver, and adjusts the rotation speed of the output shaft of the servo motor to meet the injection requirements of different injection speeds of different dosages of liquid medicine.

[0012] Furthermore, a notch is provided on one side of the shell, the notch is in a circular structure, and the diameter of the notch is larger than the diameter of the syringe.

[0013] With the above technical solution, the syringe can be passed through the notch to enter the interior of the shell, thereby facilitating the syringe to be fixed inside the shell through the locking assembly inside the shell.

[0014] Furthermore, the rack and the connecting plate form an inverted "L"-shaped structure, the upper end of the connecting plate is fixedly connected with a slider, and the slider is connected to the housing in a sliding manner.

[0015] Through the above technical solution, the rack drives the connecting plate to move synchronously, and the slider connected to the connecting plate guides and limits the rack and the connecting plate, thereby ensuring that the rack and the connecting plate move horizontally and linearly.

[0016] Furthermore, a distance sensor is fixedly mounted on one side of the connecting plate, a fixing plate is provided on one side of the distance sensor, and the fixing plate is fixedly connected to the housing.

[0017] Through the above technical solution, when the syringe draws the medicine, the piston will slide inside the syringe barrel and slide a certain distance. The fixed plate serves as a position reference. The distance sensor measures the distance between the distance sensor and the fixed plate to obtain the distance of the piston movement, and then the required injection speed can be obtained by inputting the injection time value.

[0018] Furthermore, the clamping assembly includes a fixed block, a driving disk and a fixed disk, the driving disk is located between the fixed block and the fixed disk, and the connection between the fixed block and the slider is a fixed connection.

[0019] Through the above technical solution, the piston can be fixed and clamped by the clamping assembly, and then the piston can be driven to move by the clamping assembly, so as to extract or inject the medicine liquid.

[0020] Furthermore, a worm wheel is arranged inside the fixed block, a connecting shaft is connected in the middle of the worm wheel, a worm is connected to one side of the worm wheel, a driving shaft is fixedly connected to the upper end of the worm, a through groove is opened on the upper surface of the shell, and the driving shaft passes through the through groove.

[0021] Through the above technical solution, the rotating drive shaft can drive the worm to rotate, and then the worm drives the worm wheel to rotate, so that the worm wheel drives the connecting shaft to rotate.

[0022] Furthermore, a limit groove is provided inside the driving disk, and the limit groove is an arc-shaped structure. A driven rod is arranged inside the limit groove. There are four driven rods, and the driven rods are distributed at equal angles with respect to the center of the driving disk. The connecting shaft passes through the driving disk, and the connection method between the connecting shaft and the driving disk is a fixed connection.

[0023] Through the above technical solution, the connecting shaft drives the driving disk to rotate, and the driving disk causes the driven rod to slide inside the limiting groove during the rotation process.

[0024] Furthermore, a slide groove is opened inside the fixed disk, a slide plate is arranged inside the slide groove, the slide plate is fixedly connected to the driven rod, one end of the slide plate is fixedly connected to a locking block, springs are arranged at equal distances inside the locking block, the other end of the spring is connected to the locking plate, and a cam shaft is fixedly connected to the other side of the fixed disk.

[0025] Through the above technical solution, the driven rod drives the slide plate to slide inside the slide groove, so that the slide plate drives the locking block to move linearly, and then the locking block is tightly connected to the piston and clamps it, thereby meeting the clamping requirements of pistons of different sizes.

[0026] Furthermore, the locking assembly includes a clamping block, a screw rod and a guide shaft pass through the interior of the clamping block, the clamping block is symmetrically distributed about the transverse center line of the injection barrel, one side of the clamping block is a "V"-shaped structure, and a knob is fixedly connected to the upper end of the screw rod.

[0027] Through the above technical solution, the rotating knob can drive the screw to rotate, and the screw drives the clamping block to rise and fall through rotation. The clamping block clamps the syringe to fix it inside the shell, and because one side of the clamping block is in a "V" shape, the clamping block can easily meet the clamping requirements of syringes of different sizes.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] Firstly, in the present invention, the distance moved by the piston during the drug extraction process can be measured by a distance sensor, and combined with the time required for drug injection, the controller can calculate the injection speed, thereby calculating the rotation speed of the servo motor output shaft, and the gear is driven to rotate by the output shaft of the servo motor, and then the rack drives the piston to move in a straight line through the clamping assembly connected to the connecting plate, so that the piston moves at a uniform speed, thereby avoiding the medical staff manually pushing the syringe piston and ensuring the consistency of the injection speed throughout the process.

[0030] Secondly, in the present invention, after pressing the button, the controller can receive the injection signal, thereby controlling the output shaft of the servo motor to rotate through the driver to control the injection work. During the injection process, if the patient feels uncomfortable, the medical staff can press the button. At this time, the controller will receive the stop signal and control the output shaft of the servo motor to stop rotating through the driver, thereby interrupting the injection work.

[0031] Thirdly, in the present invention, the syringe barrel can be fixed by the locking assembly so that the syringe barrel is fixed inside the shell, and the piston can be clamped by the clamping assembly, so that it is convenient to adjust the inflow and outflow of the liquid medicine by pushing and pulling the piston, and the locking assembly and the clamping assembly can meet the fixing and clamping requirements of syringe barrels and pistons of different sizes, so that the booster is adapted to syringes of different sizes, and the overall structure of the booster is compact to improve the convenience of the booster. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 It is a schematic cross-sectional structural diagram of the housing in the present invention;

[0034] Figure 3 It is a schematic diagram of the connection structure between the rack and the connecting plate in the present invention;

[0035] Figure 4 It is a schematic diagram of the position structure of the connecting plate and the distance sensor in the present invention;

[0036] Figure 5 It is a schematic diagram of the connection structure between the slide plate and the locking block in the present invention;

[0037] Figure 6 It is a schematic cross-sectional structural diagram of the fixing block in the present invention;

[0038] Figure 7 It is a schematic diagram of the connection structure between the fixed plate and the convex shaft in the present invention;

[0039] Figure 8 It is a schematic diagram of the connection structure between the driving disk and the fixed disk in the present invention;

[0040] Fig. 9 It is a schematic cross-sectional structural diagram of the locking block in the present invention.

[0041] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0042] 1. Housing; 2. Servo motor; 3. Gear; 4. Rack; 5. Connecting plate; 6. Slider; 7. Distance sensor; 8. Fixed plate; 9. Fixed block; 10. Worm gear; 11. Connecting shaft; 12. Worm; 13. Driving shaft; 14. Through slot; 15. Driving disk; 16. Limiting slot; 17. Follower rod; 18. Fixed disk; 19. Slide slot; 20. Slide plate; 21. Locking block; 22. Spring; 23. Locking plate; 24. Cam shaft; 25. Piston; 26. Syringe; 27. Driver; 28. Controller; 29. ​​Button; 30. Display screen; 31. Clamping block; 32. Screw rod; 33. Knob; 34. Guide shaft; 35. Notch. DETAILED DESCRIPTION

[0043] 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.

[0044] The present invention provides a technical solution:

[0045] like Figure 1 - Figure 3 A portable booster adapted for a syringe as shown comprises a housing 1: a booster assembly is arranged inside the housing 1, the booster assembly comprises a gear 3, a rack 4 and a connecting plate 5, a clamping assembly is arranged on one side of the connecting plate 5, a piston 25 is arranged on one side of the clamping assembly, the booster assembly is used to push and pull the piston 25 to adjust the inflow and outflow of the liquid medicine, and the clamping assembly is used to fix the piston 25;

[0046] The function of the booster assembly is to control the movement of the piston 25 through the booster assembly, thereby adjusting the inflow and outflow of the liquid medicine, and by adjusting the movement speed of the booster assembly, the injection speed of the liquid medicine can be controlled.

[0047] See also Figure 2 - Fig. 9The clamping assembly includes a fixed block 9, a driving disk 15 and a fixed disk 18. The driving disk 15 is located between the fixed block 9 and the fixed disk 18. The fixed block 9 is connected to the slider 6 in a fixed connection. A worm gear 10 is arranged inside the fixed block 9. A connecting shaft 11 is connected to the middle of the worm gear 10. A worm 12 is connected to one side of the worm gear 10. A driving shaft 13 is fixedly connected to the upper end of the worm 12. A through groove 14 is provided on the upper surface of the housing 1. The driving shaft 13 passes through the through groove 14. A limiting groove 16 is provided inside the driving disk 15. The limiting groove 16 has an arc-shaped structure. The limiting groove 16 is arranged inside There is a driven rod 17, four of which are arranged, and the driven rods 17 are distributed at equal angles about the center of the driving disk 15. The connecting shaft 11 passes through the driving disk 15, and the connection mode between the connecting shaft 11 and the driving disk 15 is a fixed connection. A slide groove 19 is provided inside the fixed disk 18, and a slide plate 20 is arranged inside the slide groove 19. The slide plate 20 is fixedly connected to the driven rod 17, and a locking block 21 is fixedly connected to one end of the slide plate 20. Springs 22 are arranged at equal distances inside the locking block 21, and the other end of the spring 22 is connected to a locking plate 23. A convex shaft 24 is fixedly connected to the other side of the fixed disk 18.

[0048] The principle of clamping the piston 25 is that after the syringe is placed inside the housing 1, when the end of the piston 25 abuts against the convex shaft 24, it means that the syringe has been accurately placed in the installation position, and then the drive shaft 13 is rotated, the drive shaft 13 drives the worm 12 to rotate, and then the worm 12 drives the worm wheel 10 to rotate, and the worm wheel 10 drives the drive disk 15 to rotate through the connecting shaft 11. During the rotation of the drive disk 15, the driven rod 17 slides inside the limit groove 16, and the driven rod 17 The slide plate 20 is driven to slide inside the slide groove 19, so that the slide plate 20 drives the locking block 21 to move in a straight line. The locking blocks 21 move toward the direction of the piston 25, are tightly connected with the curved surface of the piston 25 and clamp it. One side of the piston 25 is tightly fitted with the cam 24, and the other side of the piston 25 is tightly fitted with the locking plate 23. The purpose of clamping the piston 25 is achieved through the mutual cooperation of the locking block 21, the locking plate 23 and the cam 24, and it is beneficial to meet the clamping requirements of pistons 25 of different sizes.

[0049] See also Figure 2 - Figure 3 A locking assembly is provided inside the housing 1, and a syringe 26 is sleeved on the outer surface of the piston 25. The locking assembly is used to lock the syringe 26. The locking assembly includes a clamping block 31. A screw rod 32 and a guide shaft 34 are passed through the interior of the clamping block 31. The clamping block 31 is symmetrically distributed about the transverse center line of the syringe 26. One side of the clamping block 31 is in a "V"-shaped structure. A knob 33 is fixedly connected to the upper end of the screw rod 32. A notch 35 is opened on one side of the housing 1. The notch 35 is in a circular structure, and the diameter of the notch 35 is larger than the diameter of the syringe 26.

[0050] The principle of fixing the syringe 26 is that the syringe 26 can be passed through the slot 35 to enter the interior of the shell 1. When the end of the piston 25 abuts against the cam 24, it means that the syringe has been accurately placed in the installation position. Then, the knob 33 is rotated to drive the screw rod 32 to rotate. The screw rod 32 drives the clamping block 31 to rise and fall through rotation. The clamping block 31 fits tightly with the syringe 26 and clamps it, so that the syringe 26 is fixed inside the shell 1. Since one side of the clamping block 31 is in a "V" shape, the clamping block 31 can meet the clamping requirements of syringes 26 of different sizes.

[0051] See also Figure 1 - Figure 4 A servo motor 2 is installed inside the shell 1, and the output shaft of the servo motor 2 is connected to the gear 3. A driver 27 is connected to one side of the servo motor 2, and a controller 28 is connected to one side of the driver 27. A button 29 is provided on one side of the controller 28. A display screen 30 is installed inside the shell 1, and the display screen 30 is electrically connected to the controller 28. The rack 4 and the connecting plate 5 form an inverted "L"-shaped structure. A slider 6 is fixedly connected to the upper end of the connecting plate 5, and the slider 6 is connected to the shell 1 in a sliding manner. A distance sensor 7 is fixedly installed on one side of the connecting plate 5, and a fixing plate 8 is provided on one side of the distance sensor 7, and the fixing plate 8 is fixedly connected to the shell 1.

[0052] The principle of using the booster is that, first, the medical staff can pass the syringe through the slot 35 to make it enter the interior of the housing 1. The syringe consists of a syringe barrel 26 and a piston 25. Then, the syringe barrel 26 is fixed by a locking assembly so that the syringe barrel 26 is fixed inside the housing 1, and the piston 25 is clamped by a clamping assembly. Then, the needle on one side of the syringe barrel 26 is inserted into the medicine container, and then the button 29 is pressed. After the controller 28 receives the start signal, it controls the output shaft of the servo motor 2 to rotate through the driver 27, and the output shaft of the servo motor 2 drives the gear 3 to rotate. The gear 3 drives the rack 4 to move by rotating, and the rack 4 drives the connecting plate 5 to move horizontally and linearly. The connecting plate 5 drives the piston 25 to move linearly through the clamping assembly. The piston 25 extracts the liquid medicine by sliding, so that the liquid medicine enters the interior of the syringe 26. When the specified dose of liquid medicine is extracted, the button 29 is pressed again. At this time, after the controller 28 receives the stop signal, it will control the output shaft of the servo motor 2 to stop rotating through the driver 27. At this time, the drug extraction work is completed. In this process, the connecting plate 5 drives the distance sensor 7 to move synchronously. After the distance sensor 7 stops moving, it will measure The distance between the fixed plate 8 and the horizontal distance between the distance sensor 7 and the fixed plate 8 is the distance moved by the piston 25 during the drug extraction process, and the distance sensor 7 transmits the measured distance data to the controller 28. Then the medical staff inputs the time required for the injection of the drug solution through the display screen 30. After obtaining the required injection time, the controller 28 calculates the injection speed, thereby calculating the rotation speed of the output shaft of the servo motor 2. Then, the medical staff can insert the syringe needle that has been extracted with the drug solution into the pre-sterilized injection site. After inserting to a suitable depth, the button 29 can be pressed, and the controller 28 receives the injection. After receiving the injection signal, the output shaft of the servo motor 2 will be controlled by the driver 27 to rotate in the opposite direction, and the rotation speed is the calculated rotation speed. The gear 3 drives the rack 4 to move by rotating, and the rack 4 drives the piston 25 to move synchronously through the clamping assembly connected by the connecting plate 5, so that the piston 25 moves toward the inside of the syringe 26, thereby injecting the drug solution. During this process, if the patient feels uncomfortable, the medical staff can press the button 29. At this time, after the controller 28 receives the stop signal, it will control the output shaft of the servo motor 2 to stop rotating through the driver 27, thereby interrupting the injection work.

[0053] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable booster adapted for a syringe, comprising a housing (1): characterized in that: A boosting assembly is arranged inside the housing (1), the boosting assembly comprising a gear (3), a rack (4) and a connecting plate (5), a clamping assembly is arranged on one side of the connecting plate (5), a piston (25) is arranged on one side of the clamping assembly, the boosting assembly is used to push and pull the piston (25) to adjust the inflow and outflow of the liquid medicine, and the clamping assembly is used to fix the piston (25); A locking assembly is arranged inside the housing (1); a syringe (26) is sleeved on the outer surface of the piston (25); and the locking assembly is used to lock the syringe (26); A servo motor (2) is installed inside the housing (1), an output shaft of the servo motor (2) is connected to a gear (3), one side of the servo motor (2) is connected to a driver (27), one side of the driver (27) is connected to a controller (28), one side of the controller (28) is provided with a button (29), and a display screen (30) is installed inside the housing (1), the display screen (30) is electrically connected to the controller (28); The rack (4) and the connecting plate (5) form an inverted "L"-shaped structure; the upper end of the connecting plate (5) is fixedly connected to a slider (6); the slider (6) is connected to the housing (1) in a sliding manner; A distance sensor (7) is fixedly mounted on one side of the connection plate (5), a fixing plate (8) is provided on one side of the distance sensor (7), and the fixing plate (8) is fixedly connected to the housing (1); The clamping assembly comprises a fixed block (9), a driving disk (15) and a fixed disk (18), wherein the driving disk (15) is located between the fixed block (9) and the fixed disk (18), and the fixed block (9) and the slider (6) are connected in a fixed manner; A worm wheel (10) is disposed inside the fixed block (9), a connecting shaft (11) is connected in the middle of the worm wheel (10), a worm (12) is connected to one side of the worm wheel (10), a drive shaft (13) is fixedly connected to the upper end of the worm (12), a through slot (14) is formed on the upper surface of the housing (1), and the drive shaft (13) passes through the through slot (14); A limiting groove (16) is provided inside the driving disk (15), the limiting groove (16) is in an arc-shaped structure, a driven rod (17) is provided inside the limiting groove (16), four driven rods (17) are provided, and the driven rods (17) are distributed at equal angles with respect to the center of the driving disk (15), the connecting shaft (11) passes through the driving disk (15), and the connecting shaft (11) and the driving disk (15) are connected in a fixed manner; A slide groove (19) is provided inside the fixed disk (18), a slide plate (20) is provided inside the slide groove (19), the slide plate (20) is fixedly connected to the driven rod (17), one end of the slide plate (20) is fixedly connected to a locking block (21), springs (22) are provided inside the locking block (21) at equal distances, the other end of the spring (22) is connected to a locking plate (23), and the other side of the fixed disk (18) is fixedly connected to a convex shaft (24); The locking assembly comprises a clamping block (31), a screw rod (32) and a guide shaft (34) passing through the interior of the clamping block (31), the clamping block (31) being symmetrically distributed about the transverse center line of the injection cylinder (26), one side of the clamping block (31) being in a "V"-shaped structure, and the upper end of the screw rod (32) being fixedly connected to a knob (33).

2. A portable booster adapted for a syringe according to claim 1, characterized in that: A notch (35) is provided on one side of the housing (1); the notch (35) is in a circular structure; and the diameter of the notch (35) is greater than the diameter of the injection cylinder (26).

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