Needle taking structure and device for insulin pen

Abstract

The utility model relates to the technical field of medical equipment, in particular to a needle taking structure and equipment for an insulin pen, the needle taking structure for the insulin pen comprises a mounting rack and a needle taking mechanism, the needle taking mechanism is assembled on the mounting rack, the needle taking mechanism comprises a clamping assembly and a driving assembly, the clamping assembly is assembled on the mounting rack, and the driving assembly is assembled on the mounting rack. The clamping assembly is arranged on the mounting frame, penetrates out of the mounting frame and is used for clamping a needle head of the insulin pen, and the driving assembly is assembled on the mounting frame, is in transmission connection with the clamping assembly and is used for controlling the clamping assembly to rotate and taking down the needle head. The insulin pen needle taking device has the advantages that a needle of an insulin pen can be taken down automatically, conveniently and quickly, and after being taken down, the insulin pen needle taking device can reset automatically to facilitate next needle taking; and after the needle head is taken down, the needle head can be collected, and follow-up treatment is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, and in particular to a needle removal structure and equipment for an insulin pen. Background Technology

[0002] Insulin is a protein hormone secreted by pancreatic β cells in the pancreas in response to endogenous or exogenous substances such as glucose, lactose, ribose, arginine, glucagon, etc. Insulin is the only hormone in the body that lowers blood sugar and promotes the synthesis of glycogen, fat, and protein. Exogenous insulin is mainly used to treat diabetes. For some diabetic patients, exogenous insulin is needed, and exogenous insulin needs to be injected through an insulin pen.

[0003] Currently, there are several ways to separate insulin pen needles: 1. Unscrew the insulin pen needle by hand and throw it back into the sharps box; 2. Put the outer cover of the insulin pen needle back onto the insulin needle, covering the needle tip, and then unscrew the needle; 3. Use pliers to clamp the insulin needle and use hemostat to unscrew the needle. Since the insulin needle is super thin and short (0.25mm×5mm), it is very easy to cause needlestick injuries and iatrogenic infections when removing it by hand. When removing the needle by putting the outer cover back, the outer cover of the insulin needle is short, round, and not easy to put back onto the needle, which can easily cause needlestick injuries to the fingers. When clamping the needle with hemostat and rotating it to remove it, it is more troublesome because auxiliary equipment is needed. On the other hand, some patients do not have the corresponding pliers when injecting themselves, so they can only remove it by hand, which is easy to be stabbed. Contents of utility model

[0004] In view of this, the purpose of the utility model is to provide a needle removal structure and equipment for an insulin pen, which can automatically remove the needle of the insulin pen, conveniently and quickly, and can automatically reset after removal, so as to facilitate the next needle removal; after the needle is removed, the needle can also be collected for subsequent processing.

[0005] The utility model solves the above technical problems through the following technical means:

[0006] A needle removal structure for an insulin pen, comprising a mounting frame and a needle removal mechanism, the needle removal mechanism being mounted on the mounting frame, the needle removal mechanism comprising a clamping assembly and a driving assembly, the clamping assembly being mounted on the mounting frame and passing through the mounting frame, and being used to clamp the needle of the insulin pen, the driving assembly being mounted on the mounting frame, and being in transmission connection with the clamping assembly, and being used to control the rotation of the clamping assembly and remove the needle.

[0007] According to the above technical means, after the insulin pen is used, the insulin pen is placed at the needle-taking mechanism. Through the mutual cooperation of the clamping component and the driving component, the needle of the insulin pen can be automatically removed, which is convenient and fast. And after the removal, it can automatically reset, facilitating the next needle-taking.

[0008] On the basis of the above solution, the present application has also made the following improvements:

[0009] Further, the clamping component includes a mounting base, a clamping member and a needle-dropping cylinder. The mounting base is rotationally assembled on the mounting frame. The mounting base has a cavity. The needle-dropping cylinder is installed in the cavity and can move axially along the cavity. The clamping member is rotationally assembled on the mounting base. When the needle-dropping cylinder moves, it drives the clamping member to clamp or loosen the needle of the insulin pen.

[0010] According to the above technical means, through the mutual cooperation of the mounting base and the needle-dropping cylinder, the clamping member can clamp the needle of the insulin pen when the needle-dropping cylinder moves downward; and loosen the needle of the insulin pen when the needle-dropping cylinder moves upward, so that the needle can enter the needle-dropping cylinder.

[0011] Further, the clamping member includes a clamping base and at least two clamping arms. The clamping base is fixedly installed on the mounting base. All the clamping arms are rotationally installed on the clamping base and are evenly arranged for stable clamping.

[0012] According to the above technical means, by setting at least two clamping arms, the needle can be stably clamped, facilitating the removal of the needle.

[0013] Further, the clamping arm includes a clamping end, a mounting end and a transmission end. One end of the mounting end is fixedly connected to the clamping end, and the other end is fixedly connected to the transmission end. The mounting end is rotationally installed on the clamping base. The clamping end is used to clamp the needle of the insulin pen. The transmission end is located on the outer wall of the needle-dropping cylinder. When the needle-dropping cylinder moves, it drives the clamping end to clamp or loosen through the transmission end.

[0014] According to the above technical means, on the one hand, it is convenient to movably assemble the clamping arm between the clamping base and the needle-dropping cylinder, and on the other hand, it is convenient to clamp the needle.

[0015] Further, the driving component includes a first power source, a driving member and a lifting member. The first power source is fixedly assembled on the mounting frame. One end of the driving member is assembled on the output shaft of the first power source, and the other end is fixedly connected to the lifting member. The lifting member is connected to the clamping component and is used to drive the clamping component to lift.

[0016] According to the above technical means, through the mutual cooperation of the first power source, the driving member and the lifting member, the lifting member can drive the clamping component to lift during operation, so that the clamping component can clamp or loosen the needle.

[0017] Further, the driving member includes a connecting portion, a driving portion, and a transmission portion. The connecting portion is fixedly connected to the output shaft of the first power source. The connecting portion is fixedly connected to the driving portion. The transmission portion is fixedly connected to the lifting member. The driving portion has an external thread, and the transmission portion has an internal thread, and the external thread is threadedly connected to the internal thread.

[0018] According to the above technical means, when the first power source operates, it can drive the driving portion to rotate through the connecting portion, and under the cooperation of the threads, a transmission similar to a lead screw is formed, enabling the transmission portion and the lifting member to rise or fall.

[0019] Further, the lifting member includes a lifting seat and a fixing portion. The lifting seat is movably assembled on the mounting frame. The fixing portion is fixedly assembled between the lifting seat and the clamping assembly for fixedly connecting the lifting seat and the clamping assembly.

[0020] According to the above technical means, on the one hand, it is convenient for the installation of the driving member, and on the other hand, it can be used to cooperate with driving the clamping assembly to rise and fall.

[0021] Further, the driving assembly further includes a transmission assembly. The transmission assembly includes a second power source and a driving portion. The second power source is fixedly assembled on the mounting frame. The driving portion is connected between the output shaft of the second power source and the clamping assembly for driving the clamping assembly to rotate.

[0022] According to the above technical means, through the cooperation of the second power source and the driving portion, the clamping assembly can be driven to rotate. When the clamping assembly clamps the needle, the needle can be removed.

[0023] Further, the needle-taking mechanism further includes a limit switch. The limit switch is assembled on the mounting frame and is electrically connected to the driving assembly.

[0024] According to the above technical means, the limit switch is used to control the rising distance of the needle dropping cylinder, thereby forming a reverse control of the second power source.

[0025] The present application also discloses a needle-taking device for an insulin pen, including the above-mentioned needle-taking structure for an insulin pen, and further including an upper housing and a lower housing. The upper housing is fixedly assembled on the mounting frame. The upper housing is internally assembled with a feeding portion, and the feeding portion is directly opposite to the clamping assembly. The lower housing is fixedly assembled on the mounting frame. A sharp instrument box is detachably placed inside the lower housing, and the sharp instrument box corresponds to the clamping assembly.

[0026] According to the above technical means, through the upper housing, the lower housing, the feeding portion, the mounting frame, the needle-taking mechanism, and the sharp instrument box, a complete needle-taking device is formed, enabling the needle to automatically fall into the sharp instrument box after being removed, facilitating subsequent processing.

[0027] The present application adopting the above solution has the following beneficial effects:

[0028] 1. By providing a needle-taking mechanism on the mounting bracket, the needle-taking mechanism can automatically remove the needle of the insulin pen, which is convenient and fast, and the needle-taking mechanism can automatically reset, facilitating the next needle-taking;

[0029] 2. By the cooperation of the clamping assembly and the driving assembly to form a needle-taking mechanism, when the driving assembly works, it can not only drive the clamping assembly to clamp or loosen the needle, but also drive the clamping assembly to rotate, so as to remove the needle, with a high degree of automation, convenient to use and strong practicability;

[0030] 3. Through the mutual cooperation of the needle-taking mechanism with the upper shell, the lower shell, the feeding part and the sharp tool box, a complete needle-taking device is constituted, so that after the needle is removed, it can automatically fall into the sharp tool box, facilitating subsequent processing and having strong practicability. Description of the Drawings

[0031] The present utility model can be further illustrated by the non-limiting embodiments given in the drawings;

[0032] Figure 1 is a schematic structural diagram of the needle-taking structure for an insulin pen in an embodiment of the present application;

[0033] Figure 2 is one of the sectional structural diagrams of the needle-taking structure for an insulin pen in an embodiment of the present application;

[0034] Figure 3 is another sectional structural diagram of the needle-taking structure for an insulin pen in an embodiment of the present application;

[0035] Figure 4 is a partial structural diagram of the clamping assembly and the driving assembly in the needle-taking structure for an insulin pen in an embodiment of the present application;

[0036] Figure 5 is a partial assembly structural diagram of the lifting seat in the needle-taking structure for an insulin pen in an embodiment of the present application;

[0037] Figure 6 is a schematic structural diagram of the needle-taking device for an insulin pen in use in an embodiment of the present application;

[0038] Figure 7 is a sectional structural diagram of the needle-taking device for an insulin pen in an embodiment of the present application;

[0039] Figure 8 is a partial installation structural diagram of the needle-taking device for an insulin pen in an embodiment of the present application;

[0040] Description of the Main Symbol Elements:

[0041] 1. Mounting bracket

[0042] 2. Clamping assembly; 20. Mounting base; 21. Base body; 22. Sleeve; 23. Annular limiting sleeve; 24. Spring; 25. Clamping member; 251. Clamping seat; 252. Rotating shaft; 253. Clamping arm; 2531. Clamping end; 25311. Weight reduction groove; 25312. Groove; 2532. Mounting end; 2533. Driving end; 26. Cylinder body; 261. First ear plate; 262. Second ear plate; 263. Card slot

[0043] 3. Driving assembly; 30. First power source; 301. Motor bracket; 31. Connecting part; 32. Driving part; 33. Transmission part; 331. Connecting plate; 34. Lifting seat; 341. Connecting ring; 342. Retaining ring; 35. Fixing part; 36. Second power source; 361. Driving part; 362. First gear; 363. Second gear; 364. Pad; 37. Limit switch

[0044] 4. First housing; 41. Second housing; 411. Cover plate; 42. Feeding seat; 421. Sliding column; 43. Compression spring; 44. Control switch

[0045] 5. Lower housing; 6. Sharp tool box Specific embodiments

[0046] The following specific embodiments are used to illustrate the implementation manners of the present utility model. Those skilled in the art can understand the advantages and effects of the present utility model from the content disclosed in this specification. It should be noted that the drawings provided in the following embodiments are only for illustrative purposes, showing only schematic diagrams, not physical diagrams, and should not be construed as limitations on the present invention. In order to better illustrate the embodiments of the present invention, some components in the drawings will be omitted, enlarged or reduced, which do not represent the dimensions of the actual products; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted

[0047] The same or similar numbers in the figures of the embodiments of the present invention correspond to the same or similar parts. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc. indicating the orientation or position relationship, it is based on the orientation or position relationship shown in the figure, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the figure are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances. In the description of this application, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0048] It should be noted that the diagrams provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and the diagrams only show the components related to the present invention rather than the number, shape and size of the components in actual implementation. The type, quantity and proportion of each component in actual implementation may be changed at will, and the layout of the components may also be more complicated.

[0049] If Figure 1-5 As shown, the embodiment of the present application discloses a needle removal structure for an insulin pen, including a mounting frame 1 and a needle removal mechanism. The needle removal mechanism is assembled on the mounting frame 1, so that the mounting frame 1 can provide a mounting base for the needle removal mechanism. By arranging the needle removal mechanism on the mounting frame 1, the needle removal mechanism can automatically remove the needle of the insulin pen, which is convenient and quick, and the needle removal mechanism can automatically reset to facilitate the next needle removal. It is not only suitable for personal needle removal, but also suitable for large-scale needle removal in medical institutions.

[0050] In some embodiments, such as Figure 1 As shown, the needle removal mechanism includes a clamping assembly 2 and a driving assembly 3. The clamping assembly 2 is assembled on the mounting frame 1 and passes through the mounting frame 1 to clamp the needle of the insulin pen. The driving assembly 3 is assembled on the mounting frame 1 and is in transmission connection with the clamping assembly 2 to control the rotation of the clamping assembly 2 and remove the needle.

[0051] In this embodiment, if Figure 2-3 As shown in FIG. 1 , the clamping assembly 2 includes a mounting seat 20, a clamping member 25 and a needle dropper. The mounting seat 20 is rotatably mounted on the mounting frame 1. The mounting seat 20 has a cavity. The needle dropper is installed in the cavity and can move axially along the cavity. The clamping member 25 is rotatably mounted on the mounting seat 20. When the needle dropper moves, it drives the clamping member 25 to clamp or release the needle of the insulin pen.

[0052] In this embodiment, if Figure 2 ​​As shown, the mounting base 20 includes a base body 21 and a sleeve 22. The base body 21 and the sleeve 22 are fixedly connected. The needle dropping cylinder is assembled inside the sleeve 22 and passes through the sleeve 22, enabling the needle dropping cylinder to rise or fall inside the sleeve 22. A circular limiting sleeve 23 is fixedly arranged at the lower end of the inner wall of the sleeve 22. The cross-section of the circular limiting sleeve 23 is in an inverted L shape, which is used to limit the lateral movement of the needle dropping cylinder and has a certain guiding effect, avoiding a large difference between the opening of the needle dropping cylinder and the clamping position of the clamping member 25, resulting in the needle getting stuck horizontally or obliquely in the needle dropping cylinder when it falls.

[0053] In this embodiment, as Figure 2 shown, the needle dropping cylinder includes a cylinder body 26, a first ear plate 261, and a second ear plate 262. The cylinder body 26 is hollow. The first ear plate 261 is fixedly arranged at the upper part of the cylinder body 26, and the connection part between the first ear plate 261 and the cylinder body 26 is an inclined surface, which is beneficial to the falling of the needle. The second ear plate 262 is fixedly arranged on the outer wall of the cylinder body 26 and forms an annular installation space with the first ear plate 261, which can be used to provide a connection position 31 for the clamping member 25. Thus, when the needle dropping cylinder moves up and down, it can drive the clamping member 25 to clamp or loosen the needle.

[0054] In some embodiments, a spring 24 is sleeved on the outer wall of the needle dropping cylinder. One end of the spring 24 abuts against the circular limiting sleeve 23, and the other end abuts against the second ear plate 262, which can form a buffer, making the lifting and lowering of the needle dropping cylinder more stable and also facilitating the preliminary installation of the needle dropping cylinder.

[0055] In this embodiment, as Figure 2-3 shown, the clamping member 25 includes a clamping base 251 and at least two clamping arms 253. The clamping base 251 is fixedly installed on the mounting base 20 by bolts or welding. The number of the clamping base 251 is the same as that of the clamping arms 253, so that each clamping arm 253 is installed on a clamping base 251. The number of the clamping arms 253 is at least two, and can also be three or four, which can be selected according to the actual situation. In this embodiment, the clamping arms 253 are preferably three, and the three clamping arms 253 are evenly arranged on three evenly arranged clamping bases 251 for stably clamping the needle.

[0056] In this embodiment, the clamping arm 253 includes a clamping end 2531, a mounting end 2532, and a transmission end 2533. One end of the mounting end 2532 is fixedly connected to the clamping end 2531, and the other end is fixedly connected to the transmission end 2533. The mounting end 2532 is rotatably mounted on the clamping seat 251 through a rotating shaft 252, enabling the clamping arm 253 to rotate on the clamping seat 251. In some embodiments, the clamping end 2531, the mounting end 2532, and the transmission end 2533 are integrally formed, which can improve the structural strength of the clamping arm 253. The upper part of the clamping end 2531 has a groove 25312, which can better clamp the needle of the insulin pen. The clamping end 2531 has a weight-reducing groove 25311 for reducing the weight of the clamping arm 253. The end of the transmission end 2533 is spherical and is located in the annular mounting space on the outer wall of the needle dropping cylinder. When the needle dropping cylinder moves, the clamping end 2531 can be driven to clamp or loosen through the transmission end 2533, so that the three clamping arms 253 can clamp or loosen the needle simultaneously.

[0057] The clamping arm 253 can be made of aluminum alloy material or ABS resin with high strength performance. In other embodiments, the clamping member 25 can also be an electric gripper, an electric robotic arm, or other devices capable of clamping. The clamping assembly 2 can also be set as an electric gripper, an electric robotic arm, or other devices capable of clamping, and a suitable clamping device can be selected according to the actual situation.

[0058] In some embodiments, as Figure 2-3 shown, the driving assembly 3 includes a first power source 30, a driving member, and a lifting member. The first power source 30 is fixedly assembled on the mounting frame 1 through bolts. One end of the driving member is assembled on the output shaft of the first power source 30, and the other end is fixedly connected to the lifting member. The lifting member is connected to the clamping assembly 2. When the first power source 30 works, it can drive the lifting member to move up and down through the driving member, so that the lifting member can drive the clamping assembly 2 to lift, and then clamp or loosen the needle.

[0059] In this embodiment, the first power source 30 is set as a motor, which can be a servo motor, a reduction motor, etc. The motor is fixedly installed on the mounting frame 1 through a motor bracket 301 and bolts. The number of motors can be two or four. When there are two motors, the two motors are symmetrically arranged; when there are four motors, the four motors are evenly arranged. Of course, the number and power of the motors can also be selected according to the actual situation. The number of driving members is the same as the number of motors to enable better driving.

[0060] In some embodiments, as Figure 2As shown in the figure, the driving member includes a connecting portion 31, a driving portion 32, and a transmission portion 33. The connecting portion 31 is fixedly connected to the output shaft of the first power source 30 by a spline. The connecting portion 31 is fixedly connected to the driving portion 32 for connecting the two into an integral body. The transmission portion 33 is fixedly connected to the lifting member. The driving portion 32 has an external thread, and the transmission portion 33 has an internal thread. The external thread is threadedly connected to the internal thread to form a lead screw drive. When the motor operates, it drives the connecting portion 31 and the driving portion 32 to rotate. When the driving portion 32 rotates, due to the effect of the thread, the transmission portion 33 rises or falls, thereby driving the lifting member to rise or fall.

[0061] In this embodiment, the connecting portion 31 and the driving portion 32 are integrally formed and have a connecting channel inside for fixedly connecting to the output shaft of the motor by a spline. The transmission portion 33 is hollow, and the inner wall of the hollow has an internal thread. The outer wall of the transmission portion 33 has a connecting plate 331, and the connecting plate 331 is fixedly connected to the lifting member by bolts, so that when the motor operates, it can drive the lifting member to rise or fall. In some other embodiments, the driving member can be set as an electric telescopic rod, a small cylinder, a hydraulic cylinder and other devices with lifting functions, or can also be set as a device with a lifting function such as an electric hinge, and appropriate lifting equipment can also be selected according to the actual situation.

[0062] In some embodiments, as Figure 2-5 shown, the lifting member includes a lifting seat 34 and a fixing portion 35. The lifting seat 34 is movably assembled on the mounting frame 1, so that the lifting seat 34 can move up and down relative to the mounting frame 1. And due to the connection between the internal thread and the external thread, the lifting seat 34 can be stably located below the mounting frame 1. The middle part of the lifting seat 34 is hollow, so that the needle dropping cylinder can pass through the lifting seat 34. The fixing portion 35 is fixedly assembled between the lifting seat 34 and the clamping assembly 2 for fixedly connecting the lifting seat 34 and the clamping assembly 2. When the first power source 30 operates, it can drive the lifting seat 34 to rise and fall, thereby driving the needle dropping cylinder to rise and fall. When the needle dropping cylinder rises and falls, it can drive the clamping arm 253 to clamp or loosen the needle.

[0063] In this embodiment, as Figure 5 shown, the fixing portion 35 is set as a hoop. The lower outer wall of the needle dropping cylinder has an annular clamping groove 263, and the hoop is clamped in the clamping groove 263 and then fixedly connected to the lifting seat 34 by bolts, thereby fixedly connecting the lifting seat 34 and the needle dropping cylinder. In some other embodiments, the fixing portion 35 can also be set as other connecting parts such as a gasket ring, and appropriate parts can also be selected according to the actual situation.

[0064] In this embodiment, a connecting ring 341 is provided between the lifting seat 34 and the hoop. The hoop and the connecting ring 341 are fixedly connected by bolts. A retaining ring 342 is fixedly installed on the lifting seat 34 by bolts. The retaining ring 342 abuts against the upper part of the connecting ring 341, so as to fixedly connect the lifting seat 34, the connecting ring 341, the retaining ring 342 and the needle dropping cylinder. When the first power source 30 works, the needle dropping cylinder can be driven to lift and lower by the lifting seat 34.

[0065] In some embodiments, as Figure 2-3 shown, the driving assembly 3 further includes a transmission assembly. The transmission assembly includes a second power source 36 and a driving part 361. The second power source 36 is fixedly assembled on the mounting frame 1 by bolts. The driving part 361 is connected between the output shaft of the second power source 36 and the clamping assembly 2. When the second power source 36 works, the mounting seat 20 can be driven to rotate through the driving part 361, so as to drive the clamping member 25 to rotate. When the clamping member 25 rotates, since the transmission end 2533 of the clamping arm 253 is located in the annular mounting space on the outer wall of the needle dropping cylinder, the needle dropping cylinder will not rotate, and thus the needle can be rotated and removed, and the needle will fall into the needle dropping cylinder.

[0066] In this embodiment, the second power source 36 is also set as a motor, and the motor can also be a servo motor, a reduction motor, etc. The driving part 361 is set as a transmission belt. The transmission belt is tensioned between the output shaft of the second power source 36 and the sleeve 22. When the second power source 36 works, the sleeve 22 can be driven to rotate through the transmission belt, so as to drive the mounting seat 20 to rotate, and further drive the clamping member 25 to rotate.

[0067] To make the transmission of the second power source 36 smoother, a first gear 362 is installed on the output shaft of the second power source 36 by splines. A second gear 363 is sleeved on the outer wall of the sleeve 22. The second gear 363 and the mounting seat 20 are fixedly connected by bolts. The driving part 361 can be set as a belt, and the belt is tensioned between the first gear 362 and the second gear 363. When the second gear 363 is installed, a cushion block 364 is installed on the mounting frame 1. The cushion block 364 is annular, and the lower end of the second gear 363 is in contact with the cushion block 364, so as to make the installation of the second gear 363 more stable.

[0068] In some other embodiments, the transmission assembly may also include a second power source 36, a third gear, and a fourth gear. The second power source 36 is fixedly installed on the mounting frame 1 by bolts. The third gear is fixedly installed on the output shaft of the second power source 36 by splines. The fourth gear is fixedly sleeved on the sleeve 22 by bolts. The third gear meshes with the fourth gear, so that when the second power source 36 works, it can drive the third gear and the fourth gear to rotate, thereby driving the mounting seat 20 to rotate, and further driving the clamping member 25 to rotate, realizing the rotation and loosening of the clamped needle. In actual situations, a device with a rotating function such as a pneumatic motor can also be used, and a suitable device can also be selected according to the actual situation.

[0069] When taking the needle, the user can insert the insulin pen by hand and hold the insulin pen, so that the needle of the insulin pen is located between the three clamping arms 253. Then, the first power source 30 works, driving the lifting member to descend a certain distance, so that the three clamping arms 253 clamp the needle. After clamping, the first power source 30 stops working; then the second power source 36 works, driving the clamping member 25 to rotate. During this process, the user can move the insulin pen upward, so that the needle can be rotated and removed, or the first power source 30 can work again, driving the lifting member to move downward, so that while the three clamping arms 253 are further clamped, they can move downward in the direction of the axis of the cylinder 26, thus forming a rotating downward movement, and further enabling the needle to be removed. After the needle is removed, it can fall along the cylinder after being released.

[0070] In some embodiments, as Figure 4 shown, the needle taking mechanism further includes a limit switch 37. The limit switch 37 is fixedly assembled at the lower part of the mounting frame 1 by bolts and is electrically connected to the first power source 30, so that when the lifting seat 34 rises to a certain height, the lifting seat 34 can touch the limit switch 37, thereby reversely controlling the switch of the first power source 30. As for the control circuit between the limit switch 37 and the first power source 30, it is prior art and will not be elaborated here.

[0071] As Figure 6-8 shown, the embodiment of the present application also discloses a needle taking device for an insulin pen, including the above-mentioned needle taking structure for an insulin pen, and further including an upper housing and a lower housing 5. The upper housing is fixedly assembled on the mounting frame 1 by bolts. A feeding part is assembled in the upper housing, and the feeding part corresponds to the clamping assembly 2, so that when the insulin pen is inserted into the feeding part, the needle of the insulin pen is located at the middle position of the three clamping arms 253, and when the three clamping arms 253 clamp, they can clamp the needle. The lower housing 5 is fixedly assembled at the lower part of the mounting frame 1 by bolts. A sharp instrument box 6 is detachably placed in the lower housing 5, and the sharp instrument box 6 corresponds to the lower end of the needle dropping cylinder, so that after the needle is removed, it can fall into the sharp instrument box 6 along the needle dropping cylinder.

[0072] In this embodiment, as Figure 7 shown, the upper housing includes a first housing 4 and a second housing 41. The first housing 4 is disposed on the second housing 41. The first housing 4 has an opening, and a cover plate 411 is rotatably disposed at the opening. The feeding portion is assembled on the second housing 41 and is located below the cover plate 411. After the cover plate 411 is opened, the insulin pen can be inserted into the feeding portion, and the needle of the insulin pen is located between the three clamping arms 253.

[0073] In this embodiment, the feeding portion includes a feeding base 42, a sliding column 421, a compression spring 43, and a control switch 44. The feeding base 42 is slidably installed in the upper housing. The sliding columns 421 are symmetrically disposed in the upper housing and are located on both sides of the feeding base 42 and penetrate through the feeding base 42. The compression spring 43 is sleeved on the sliding column 421. One end of the compression spring 43 is connected to the bottom of the feeding base 42, and the other end is connected to the upper housing. When the insulin pen is inserted into the feeding base 42, the feeding base 42 can be pushed downward, so that the needle of the insulin pen enters between the three clamping arms 253. During this process, the user can hold the insulin pen to prevent the insulin pen from rotating when the needle is rotated and removed. In addition, a clamping structure, such as a buckle or a clamping block, can be provided at the feeding base 42 to clamp the body of the insulin pen tightly to prevent the insulin pen from rotating when the needle is rotated and removed.

[0074] In this embodiment, the control switch 44 is fixedly installed in the upper housing by bolts and is located at the lower rear side of the feeding base 42. When the feeding base 42 is driven by the insulin pen to descend, the control switch 44 can be triggered. The control switch 44 is electrically connected to the first power source 30 and the second power source 36. Thus, the first power source 30 works first to clamp the needle of the insulin pen by the three clamping arms 253, and then the second power source 36 works to rotate the three clamping arms 253 to rotate and remove the needle. After the needle is removed, the second power source 36 stops working, and the output shaft of the first power source 30 rotates in the reverse direction, so that the three clamping arms 253 are reset for the next clamping.

[0075] In this embodiment, a lithium battery can be disposed in the lower housing 5 to supply power to the entire device. An interface can also be provided on the outer wall of the lower housing 5. The interface can be a round hole, a topological interface, etc. for connecting an external power source.

[0076] The above provides a detailed introduction to a needle-taking structure and device for an insulin pen provided by the present application. The description of the specific embodiments is only used to help understand the method and its core idea of the present application. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

[0077] It should be noted that phrases such as "an embodiment", "embodiments", "some alternative embodiments", "exemplary embodiments", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include specific features, structures or characteristics, but not necessarily every embodiment includes such specific features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. Moreover, when combining a specific feature, structure or characteristic with an embodiment, it is within the knowledge scope of those skilled in the art to implement such a feature, structure or characteristic in combination with other embodiments, whether explicitly or implicitly described.

[0078] The above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the gist and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention. The technologies, shapes and structures not detailedly described in the present invention are all well-known technologies.

Claims

1. A needle removal structure for an insulin pen, characterized in that: The invention comprises a mounting frame (1) and a needle removal mechanism, wherein the needle removal mechanism is mounted on the mounting frame (1), and comprises a clamping assembly (2) and a driving assembly (3), wherein the clamping assembly (2) is mounted on the mounting frame (1) and passes through the mounting frame (1) and is used to clamp the needle of the insulin pen, and the driving assembly (3) is mounted on the mounting frame (1) and is transmission-connected with the clamping assembly (2) and is used to control the rotation of the clamping assembly (2) and remove the needle; The driving assembly (3) comprises a first power source (30), a driving member and a lifting member. The first power source (30) is fixedly mounted on the mounting frame (1). One end of the driving member is mounted on the output shaft of the first power source (30), and the other end is fixedly connected to the lifting member. The lifting member is connected to the clamping assembly (2) and is used to drive the clamping assembly (2) to rise and fall.

2. The needle removal structure for an insulin pen according to claim 1, characterized in that: The clamping assembly (2) comprises a mounting seat (20), a clamping member (25) and a needle drop cylinder. The mounting seat (20) is rotatably mounted on the mounting frame (1). The mounting seat (20) has a cavity. The needle drop cylinder is mounted in the cavity and can move axially along the cavity. The clamping member (25) is rotatably mounted on the mounting seat (20). When the needle drop cylinder moves, it drives the clamping member (25) to clamp or release the needle of the insulin pen.

3. The needle removal structure for an insulin pen according to claim 2, characterized in that: The clamping member (25) comprises a clamping seat (251) and at least two clamping arms (253); the clamping seat (251) is fixedly mounted on the mounting seat (20); all the clamping arms (253) are rotatably mounted on the clamping seat (251) and are evenly arranged for stable clamping.

4. The needle removal structure for an insulin pen according to claim 3, characterized in that: The clamping arm (253) comprises a clamping end (2531), a mounting end (2532) and a transmission end (2533); one end of the mounting end (2532) is fixedly connected to the clamping end (2531), and the other end is fixedly connected to the transmission end (2533); the mounting end (2532) is rotatably mounted on the clamping seat (251); the clamping end (2531) is used to clamp the needle of the insulin pen; the transmission end (2533) is located on the outer wall of the needle drop cylinder; when the needle drop cylinder moves, the clamping end (2531) is driven to clamp or release via the transmission end (2533).

5. The needle removal structure for an insulin pen according to claim 1, characterized in that: The driving member comprises a connecting portion (31), a driving portion (32) and a transmission portion (33); the connecting portion (31) is fixedly connected to the output shaft of the first power source (30); the connecting portion (31) is fixedly connected to the driving portion (32); the transmission portion (33) is fixedly connected to the lifting member; the driving portion (32) has an external thread; the transmission portion (33) has an internal thread; the external thread is threadedly connected to the internal thread.

6. The needle removal structure for an insulin pen according to claim 1, characterized in that: The lifting member comprises a lifting seat (34) and a fixing portion (35); the lifting seat (34) is movably mounted on the mounting frame (1); and the fixing portion (35) is fixedly mounted between the lifting seat (34) and the clamping assembly (2) for fixedly connecting the lifting seat (34) and the clamping assembly (2).

7. The needle removal structure for an insulin pen according to claim 1 or 6, characterized in that: The driving assembly (3) further comprises a transmission assembly, wherein the transmission assembly comprises a second power source (36) and a driving part (361), wherein the second power source (36) is fixedly mounted on the mounting frame (1), and the driving part (361) is connected between the output shaft of the second power source (36) and the clamping assembly (2) for driving the clamping assembly (2) to rotate.

8. The needle removal structure for an insulin pen according to claim 1, characterized in that: The needle removal mechanism also includes a limit switch (37), which is mounted on the mounting frame (1) and is electrically connected to the drive assembly (3).

9. A needle removal device for an insulin pen, characterized in that: The invention comprises the needle removal structure for an insulin pen as described in any one of claims 1 to 8, and further comprises an upper shell and a lower shell (5), wherein the upper shell is fixedly mounted on a mounting frame (1), a feed portion is mounted inside the upper shell, and the feed portion corresponds to the clamping assembly (2), and the lower shell (5) is fixedly mounted on the mounting frame (1), a sharp tool box (6) is detachably placed inside the lower shell (5), and the sharp tool box (6) corresponds to the clamping assembly (2).

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