Injection pen capable of automatically correcting vertical injection

Abstract

The utility model discloses an injection pen capable of automatically correcting vertical injection, which relates to the technical field of injection pens and comprises a shell, an electronic injection pen is fixedly mounted in the middle in the shell, a correcting module is fixedly connected between the injection pen and the inner wall of the shell in the shell, and a limiting module is fixedly connected to the top of the shell. In the application period of the technical scheme, through cooperation of the correction module and the angle detection prompting system, when 90-degree vertical injection is needed, the correction module is unfolded to form physical limiting, the angle detection sensor captures the angle in real time and feeds back deviation, the angle is guided and adjusted to the vertical standard, the angle is maintained to be stable in the injection process, and the problem that in the prior art, the vertical injection angle is prone to deviation is solved; when injection at any angle is needed, the connecting arm is manually pulled up to relieve limiting, the angle detection prompt system still feeds back the angle, manual adjustment is assisted, and the problems that in the prior art, injection angle adjustment is not flexible enough, and diversified requirements cannot be met are solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to injection pen technical field, especially related to a kind of injection pen of automatic correction vertical injection. BACKGROUND

[0002] In clinical application, the existing GLP-1 liquid preparation injection pen has technical defects, the core problem is lack of angle correction structure, cannot monitor and guide injection angle in real time, patients due to illness, physical condition or operation experience is insufficient, only by subjective judgment to determine injection site and angle, positioning deviation is prone to occur, which can lead to drug misentry muscle layer or deviate from ideal subcutaneous site, destroy drug absorption path, weaken hypoglycemic effect, cannot meet the needs of clinical standardization treatment, and urgently needs to improve design. UTILITY MODEL CONTENT

[0003] In order to solve the above problems, the utility model provides a kind of injection pen of automatic correction vertical injection, to more exactly solve the above-mentioned problems.

[0004] The utility model is realized by the following technical scheme:

[0005] The utility model provides a kind of injection pen of automatic correction vertical injection, including shell, the middle part fixed mounting of electronic injection pen in the shell, the correction module is fixedly connected between injection pen and shell inner wall in the shell, the top of the shell is fixedly connected with the limit module, the limit module and correction module are clamped, the outside of the shell is equipped with prompt mechanism;

[0006] The prompt mechanism includes machine box, angle detection sensor and voice broadcaster, the machine box is fixedly connected in the middle part of one side of shell, the inside of the machine box is equipped with single-chip microcomputer controller, the outside of the machine box is fixedly connected with display screen, the voice broadcaster is fixedly connected to the top side of shell, the angle detection sensor is fixedly connected to the lower end of one side of shell close to machine box.

[0007] Further, the top of the shell is fixedly connected with the charging socket away from the voice broadcaster side, the lower end of the side of the shell away from machine box is fixedly connected with bubble level.

[0008] Further, the front lower end of the electronic injection pen is provided with liquid observation window, and the bottom of the injection pen is screw-connected with pen cap.

[0009] Further, the correction module comprises a telescopic spring fixedly connected to the upper end in the shell and located between the inner wall of the shell and the electronic injection pen, the bottom of the telescopic spring is fixedly connected with a base ring, the bottom of the base ring is fixedly connected with a plurality of equidistantly arranged support columns in a ring shape, and the bottom of each support column is fixedly installed with a vertical correction ring.

[0010] Further, the limiting module comprises a sliding groove, the sliding groove is arranged in the middle of the top of the shell, the inside of the sliding groove is fixedly connected with a limiting spring, the end of the limiting spring is fixedly connected with a sliding block, the top of one side of the sliding block is fixedly installed with a limiting pin, and the end of the limiting pin is connected with the correction module.

[0011] Further, the correction module further comprises a strip-shaped groove, the strip-shaped groove is arranged on one side of the shell close to the liquid observation window, the inside of the strip-shaped groove is slidably connected with a connecting arm, the lower end of the connecting arm is fixedly connected with the outer side of the base ring, the upper end of the connecting arm is fixedly installed with a clasp, and the limiting pin is inserted into the inside of the clasp.

[0012] Further, the top of one side of the sliding block away from the limiting pin is fixedly connected with an adjusting pull ring, and the side surface of the sliding block and the cross section of the inner cavity of the sliding groove are both arranged in a convex shape.

[0013] The beneficial effects of the present application are as follows:

[0014] 1、During the application of the technical solution, the correction module is matched with the angle detection prompting system, so that when 90-degree vertical injection is needed, the correction module can be smoothly unfolded and contacted with the skin to form physical limiting, and the angle detection sensor can capture the injection angle in real time, transmit the data to the single-chip microcomputer controller for analysis and processing, and if there is deviation, the deviation value can be displayed on the display screen and the prompt can be issued through the voice broadcaster, so as to guide the user to adjust the angle until the angle meets the 90-degree vertical standard, and the correction module can continuously adhere to the skin to maintain the angle stability during the injection process, thereby achieving the effect of automatically assisting the correction of 90-degree vertical injection, and solving the problems of lack of effective correction structure and easy deviation of the vertical injection angle caused by subjective judgment in the prior art.

[0015] 2. The technical scheme has the effect that the correction module can be manually controlled, and cooperates with the angle detection and prompting system, so that when an injection at an arbitrary angle is needed, the user can manually pull up the connecting arm of the correction module to release the limitation and constraint of the correction module on the angle, while the angle detection and prompting system still operates to detect and feed back the current injection angle in real time, and the user manually adjusts to the required angle according to the data and voice prompt of the display screen, thereby realizing the effect that the injection at an arbitrary angle is completed by manual operation and angle prompting, and solving the problem of insufficient flexibility of injection angle adjustment and inability to meet diversified injection requirements in the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present application;

[0017] Figure 2 is a schematic diagram of the side view structure of the present application;

[0018] Figure 3 is a schematic diagram of the top view structure of the present application;

[0019] Figure 4 is a schematic diagram of the extension state structure of the correction module of the present application;

[0020] Figure 5 is an enlarged structure schematic diagram of A of the present application; Figure 3

[0021] Figure 6 is a schematic diagram of the correction module structure of the present application.

[0022] In the figure: 1, shell; 2, electronic injection pen; 3, correction module; 31, extension spring; 32, base ring; 33, support column; 34, vertical correction ring; 35, strip-shaped groove; 36, connecting arm; 37, clasp; 4, limiting module; 41, sliding groove; 42, limiting spring; 43, sliding block; 44, limiting pin; 45, adjusting pull ring; 5, prompting mechanism; 51, machine box; 52, angle detection sensor; 53, voice broadcaster; 54, display screen; 55, charging socket; 56, level bubble; 6, liquid medicine observation window. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] Embodiment 1 ​

[0025] The injection pen can automatically correct the vertical injection, comprising a shell 1, an electronic injection pen 2 fixedly installed in the middle of the shell 1, a correction module 3 fixedly connected between the injection pen and the inner wall of the shell 1, a limiting module 4 fixedly connected to the top of the shell 1, the limiting module 4 and the correction module 3 are clamped, and a prompt mechanism 5 is arranged on the outer side of the shell 1.

[0026] The prompt mechanism 5 comprises a machine box 51, an angle detection sensor 52 and a voice broadcaster 53, the machine box 51 is fixedly connected to the middle of one side of the shell 1, the inside of the machine box 51 is provided with a single-chip microcomputer controller, the outer side of the machine box 51 is fixedly connected with a display screen 54, the voice broadcaster 53 is fixedly connected to the top of one side of the shell 1, and the angle detection sensor 52 is fixedly connected to the lower end of one side of the shell 1 close to the machine box 51. During the application of the device, the shell 1, the electronic injection pen 2, the correction module 3, the limiting module 4 and the prompt mechanism 5 are arranged, so that when in use, the limiting module 4 is first operated to release the clamping constraint of the correction module 3, then the correction module 3 can be unfolded and cooperate with the electronic injection pen 2 to assist the correction of the injection angle, at the same time, the angle detection sensor 52 in the prompt mechanism 5 can capture the injection angle information in real time, and transmit the information to the single-chip microcomputer controller in the inside of the machine box 51. After the single-chip microcomputer controller processes the information, on the one hand, the relevant data is displayed through the display screen 54 on the outer side of the machine box 51, and on the other hand, the voice broadcaster 53 on the top of one side of the shell 1 is controlled to issue a prompt to guide the user to adjust the injection angle, so as to ensure that the electronic injection pen 2 can complete the injection at a suitable angle. Such design enables the user to obtain angle feedback in real time during the injection process, reduces the injection problems caused by angle deviation by the synergistic effect of the correction module 3 and the prompt mechanism 5, improves the standardization and accuracy of the injection operation, and the clamping cooperation of the limiting module 4 and the correction module 3 can fix the correction module 3 in the non-use state, so as to avoid the influence of the random movement of the correction module 3 on the overall stability of the device. The arrangement of the prompt mechanism 5 makes the operation more intuitive and convenient, especially suitable for users who lack injection experience or have physical inconvenience, helping them more easily complete the GLP-1 liquid preparation injection operation.

[0027] In combination Figures 1-4 As shown in the figure, a charging socket 55 is fixedly connected to the side of the top of the shell 1 away from the voice broadcaster 53, a bubble level 56 is fixedly connected to the lower end of the side of the shell 1 away from the machine box 51, a liquid observation window 6 is arranged at the lower end of the front of the electronic injection pen 2, and a pen cap is threadedly connected to the bottom of the injection pen.

[0028] The technical solutions in the embodiments of the application have the following advantages. During the application of the device, the power supply of the device is ensured through the charging socket 55, the normal operation of the prompting mechanism 5 is ensured, the horizontal state of the device is preliminarily judged by observing the bubble level 56, the liquid level in the electronic injection pen 2 is confirmed by observing the liquid observation window 6, the injection needle is exposed by removing the pen cap, the injection angle is adjusted by unfolding the correction module 3, the angle information is captured by the angle detection sensor 52 of the prompting mechanism 5, the data is displayed on the display screen 54 and the prompting is issued by the voice broadcaster 53 after the angle information is transmitted to the single-chip microcomputer controller and processed, the user is guided to adjust the angle to ensure that the electronic injection pen 2 is injected at a suitable angle, the user can make preparations such as power supply, angle prediction and liquid confirmation before injection, the angle feedback is obtained in real time during injection, the angle deviation problem is reduced, the operation standardization and accuracy are improved, the injection needle is protected by the pen cap when not in use, the correction module 3 is fixed by the limiting module 4 to ensure the stability of the device, the power supply is ensured to be continuous by the charging socket 55, the bubble level 56 and the liquid observation window 6 make the preparation work more convenient, and the device is especially suitable for users who lack experience or have physical disabilities and helps them easily complete GLP-1 liquid preparation injection.

[0029] Embodiment 2

[0030] In combination Figures 1-6 As shown in the figure, the correction module 3 includes a telescopic spring 31, the telescopic spring 31 is fixedly connected to the upper end in the shell 1 and located between the inner wall of the shell 1 and the electronic injection pen 2, the bottom of the telescopic spring 31 is fixedly connected with a base ring 32, the bottom of the base ring 32 is fixedly connected with a support column 33 in a ring shape at equal intervals, the bottom of the support column 33 is fixedly installed with a vertical correction ring 34, the vertical correction ring 34, the support column 33 and the base ring 32 are all slidingly connected between the inner wall of the shell 1 and the electronic injection pen 2, the limiting module 4 includes a sliding groove 41, the sliding groove 41 is opened in the middle of the top of the shell 1, the inside of the sliding groove 41 is fixedly connected with a limiting spring 42, the end of the limiting spring 42 is fixedly connected with a sliding block 43, the top of one side of the sliding block 43 is fixedly installed with a limiting pin 44, the end of the limiting pin 44 is connected with the correction module 3, the correction module 3 further includes a strip-shaped groove 35, the strip-shaped groove 35 is opened on one side of the shell 1 close to the liquid observation window 6, the inside of the strip-shaped groove 35 is slidingly connected with a connecting arm 36, the lower end of the connecting arm 36 is fixedly connected with the outside of the base ring 32, the upper end of the connecting arm 36 is fixedly installed with a clamping ring 37, the limiting pin 44 is inserted into the inside of the clamping ring 37, the side of the sliding block 43 far away from the limiting pin 44 is fixedly connected with an adjusting pull ring 45, the side surface shape of the sliding block 43 and the cross-sectional shape of the inner cavity of the sliding groove 41 are both set in a convex shape.

[0031] The technical scheme in the embodiment of the application has the following advantages: during application, the adjusting pull ring 45 is pulled first to drive the sliding block 43 to slide in the sliding groove 41 and compress the limiting spring 42, so that the limiting pin 44 is extracted from the clamping ring 37 to release the constraint on the correction module 3, the elastic force of the extension spring 31 is released to push the base ring 32 to move downward, the base ring 32 drives the support column 33 and the vertical correction ring 34 to slide synchronously, the connecting arm 36 moves along the strip-shaped groove 35 following the base ring 32, and the vertical correction ring 34 can assist in correcting the injection angle in cooperation with the electronic injection pen 2 after reaching the appropriate position, the connecting arm 36 is pushed to drive the base ring 32 to move upward after the injection is completed, the extension spring 31 is compressed to the initial position, the adjusting pull ring 45 is released, the limiting spring 42 pushes the sliding block 43 to reset, and the limiting pin 44 is reinserted into the clamping ring 37 to fix the correction module 3, the design makes the unfolding and resetting operations of the correction module 3 more orderly, the vertical correction ring 34 can stably assist in controlling the injection angle and reducing the angle deviation, the limiting module 4 ensures stable sliding and prevents falling off through the cooperation of the convex-shaped sliding block 43 and the sliding groove 41, the adjusting pull ring 45 makes the limiting operation more convenient, the clamping cooperation of the clamping ring 37 and the limiting pin 44 can firmly fix the correction module 3 to avoid random movement when not in use, the overall structure is closely matched, the stability and operation standardization during use of the device are improved, and the user can more accurately complete the injection preparation and angle correction.

[0032] The use principle and advantages of the utility model are as follows: during application, before use, the internal electrical components are powered through the charging socket 55 of the device to ensure that the angle detection sensor 52, the single-chip microcomputer controller, the display screen 54 and the voice broadcaster 53 can normally operate, and the angle detection and prompting functions are prevented from being invalid due to insufficient power; then the bubble level 56 is observed to preliminarily judge whether the device is in a substantially horizontal state to reduce the subsequent angle adjustment range; then the liquid observation window 6 is observed to confirm that the liquid amount meets the injection requirement; then the pen cap is rotated and removed to expose the injection needle; finally, the adjusting pull ring 45 is manually pulled, the sliding block 43 can stably slide in the sliding groove 41 and will not fall off due to the specific shape design of the sliding block 43 and the sliding groove 41, the limiting spring 42 is compressed during sliding, the limiting pin 44 is extracted from the clamping ring 37 to release the limiting of the correction module 3, the limiting module 4 composed of the adjusting pull ring 45, the limiting spring 42, the sliding block 43 and the limiting pin 44 makes the operation convenient, and the user can quickly complete the preparation work;

[0033] After the limit is released, the connecting arm 36 in the correction module 3 can freely slide in the strip-shaped groove 35, the originally compressed elastic spring 31 releases the elastic potential energy, pushes the base ring 32 to move downward along the specific gap, the base ring 32 drives the support column 33 to move downward synchronously, and then the vertical correction ring 34 moves downward until it contacts the skin of the injection site, and the expansion of the correction module 3 is completed; after the vertical correction ring 34 contacts the skin, the angle deviation of the device can be preliminarily limited, which creates conditions for subsequent accurate angle adjustment, and the entire expansion process does not require complex operation, through the cooperation of the elastic spring 31, the base ring 32, the support column 33 and the vertical correction ring 34, the expansion of the correction module 3 is smooth, and the use convenience of the device is further improved; during the injection, the vertical correction ring 34 is attached to the patient's skin, at this time, the shell 1 is pushed hard, the elastic spring 31 is compressed, the needle of the electronic injection pen 2 slides inside the base ring 32, the support column 33 and the vertical correction ring 34, and then the needle of the electronic injection pen 2 pierces the patient's skin, and since the vertical correction ring 34 is stably attached to the patient's skin, it can play a good angle limiting correction function;

[0034] During use, the angle detection sensor 52 is started, which detects the injection angle of the device in real time and transmits the data to the single-chip microcomputer controller, which analyzes and processes the data; if the angle deviates from the vertical standard, the deviation information will be transmitted to the display screen 54 to display the deviation angle in digital form, and the voice broadcaster 53 will issue a prompt to inform the user of the deviation; the user adjusts the angle of the device according to the data on the display screen 54 or the voice prompt to achieve self-adaptive adjustment, and during the entire adjustment process, the angle detection sensor 52 continuously detects to ensure that the angle prompt meets the standard, and when the angle meets the vertical requirement, the single-chip microcomputer controller controls the display screen 54 to display vertical qualification and the voice broadcaster 53 to issue an angle correct prompt, through the cooperation of the angle detection sensor 52, the single-chip microcomputer controller, the display screen 54 and the voice broadcaster 53, the monitoring and guidance of the injection angle can be performed in real time, which helps the user to accurately control the injection angle;

[0035] After confirming the angle is qualified, the electronic injection pen 2 is operated to inject the GLP-1 liquid preparation, and the vertical correction ring 34 is always in contact with the skin during the injection process to maintain the stability of the device and ensure that the injection angle remains vertical; if vertical injection is not required, the connecting arm 36 is simply pulled up, and then the injection angle can be flexibly adjusted manually according to the prompt of the prompt mechanism 5; if vertical injection is required, the limiting module 4 is simply released, and the vertical correction ring 34 is caused to adhere to the skin for injection; after the injection is completed, the connecting arm 36 is manually pushed upward to drive the base ring 32, the support 33 and the vertical correction ring 34 to move upward, the base ring 32 compresses the extension spring 31 to the initial position, the adjusting pull ring 45 is released, the limiting spring 42 pushes the sliding block 43 to reset, and the limiting pin 44 is reinserted into the clamping ring 37 to limit the correction module 3, and finally the pen cap is reconnected to the bottom of the electronic injection pen 2 to protect the needle, the whole resetting process is simple and orderly, and through the cooperation of the above structures, the electronic injection pen 2 can accurately adjust the injection dose when the device is used, and the vertical injection angle is matched to accurately inject the GLP-1 liquid preparation into the appropriate tissue layer under the skin, which meets the operation standard of the relevant guidelines and avoids injecting the GLP-1 liquid preparation into the muscle layer or deviating from the ideal injection site, prevents the drug absorption path from being damaged, ensures the hypoglycemic effect of the GLP-1 liquid preparation, and solves the problem of low drug absorption efficiency and poor hypoglycemic effect caused by angle deviation of the existing injection pen; at the same time, the limiting module 4 is convenient to operate, and the problem of inconvenient operation caused by the patient's illness or lack of experience is solved, the setting of the vertical correction ring 34 avoids the problem that the angle of the existing injection pen is easy to deviate due to the lack of physical limiting structure, the angle detection and prompting system allows the user to not rely on subjective perception to judge the angle, ensures the accuracy of angle adjustment, and the orderliness of the resetting process further reflects the operation stability of the device, meets the clinical standardized treatment needs, and even if the user forgets to charge during the injection, the level bubble 56 can be used to intuitively judge the angle, and the use flexibility is improved;

[0036] The electronic injection pen 2 is the existing electronic injection pen 2, which has the functions of replacing the medicine bin and the injection needle, and is internally integrated with a battery for auxiliary power supply;

[0037] The controller selected in the technical solution is an STM32F103C8T6 single-chip microcomputer installed in the machine box 51, and the display screen 54 interface integrated on the controller is used to connect the 12864 type LCD display screen 54 (resolution 128*64, working voltage 3.3V-5V);

[0038] The angle detection sensor 52 selects an MPU6050 module (working voltage 3.3V, measurement range ±2g acceleration, ±250° / s angular velocity), the SDA and SCL pins of which are connected with the I2C interface (PB7, PB6) of the single-chip microcomputer; the voice broadcaster 53 selects a SYN6288 voice module (working voltage 3.3V-5V, baud rate 9600bps), the TX pin of which is connected with the USART1_RX pin (PA10) of the single-chip microcomputer; the electronic injection pen 2 selects an INSUPEN-S type electronic injection pen 2 (working voltage 3.3V-5V, injection dose adjustment range 1U-60U, step 1U, maximum injection speed 0.5U / s-1U / s), the control pin of which is connected with the GPIO pin (PA4-PA6) of the single-chip microcomputer through a wire, and receives the dose adjustment and injection trigger instructions sent by the single-chip microcomputer;

[0039] The power supply system adopts a 3.7V / 1000mAh-2000mAh lithium battery, the lithium battery is charged by a charging port 55 (MicroUSB type, input voltage 5V / 1A) connected with a lithium battery charging management chip TP4056 (charging current 0.1A-1A), and the output end of the lithium battery is stabilized by an AMS1117-3.3V voltage stabilizing chip (output voltage 3.3V±1%, output current 0-1A) to supply power to the single-chip microcomputer, the angle detection sensor 52, the voice broadcaster 53, the display screen 54 and the electronic injection pen 2; in the circuit connection, the single-chip microcomputer outputs control signals through the GPIO pin (PA0-PA3), the angle detection sensor 52 collects angle data in real time and transmits to the single-chip microcomputer, the single-chip microcomputer processes the data, on the one hand, drives the display screen 54 to display angle information and injection dose through the display screen 54 interface, on the other hand, sends control instructions to the voice broadcaster 53 through the USART interface to realize voice prompting, and sends instructions to the electronic injection pen 2 through the GPIO pin (PA4-PA6) to realize dose adjustment and injection control, the whole circuit system realizes centralized control of each electronic component through the single-chip microcomputer, without motor components, and without the configuration of a gear box reducer and an encoder;

[0040] The application protection content does not involve the improvement of device equipment electronic components, therefore, the working principles of various electronic components are not described in detail here, the electronic components of the application are all conventional electronic components applied in the prior art, which all belong to conventional technical means of the prior art, and the application of the prior art is very mature, therefore, no further description is made here.

[0041] Of course, the utility model also can have other various implementation manners, based on the present implementation manner, other implementation manners obtained by the ordinary skilled in the art without any creative labor all belong to the range protected by the utility model.

Claims

1. An auto-correctable vertically injected injection pen, characterized by: Including the shell (1), the middle fixed installation of the shell (1) inside electronic injection pen (2), the fixed connection between the shell (1) inside located injection pen and shell (1) inner wall has correction module (3), the top of shell (1) is fixedly connected with limiting module (4), the limiting module (4) and correction module (3) are clamped, the outside of shell (1) is equipped with prompting mechanism (5); The prompting mechanism (5) includes a machine box (51), an angle detection sensor (52) and a voice broadcaster (53), the machine box (51) is fixedly connected to the side of the middle of the shell (1), the inside of the machine box (51) is provided with a single-chip microcomputer controller, the outside of the machine box (51) is fixedly connected with a display screen (54), the voice broadcaster (53) is fixedly connected to the top side of the shell (1), the angle detection sensor (52) is fixedly connected to the side of the lower end of the shell (1) close to the machine box (51).

2. An auto-correctable vertically injected pen as claimed in claim 1, wherein: The top of the shell (1) is fixedly connected with a charging socket (55) away from the voice broadcaster (53), the lower end of the side of the shell (1) away from the machine box (51) is fixedly connected with a bubble level (56).

3. An auto-correctable vertically injected pen as claimed in claim 1, wherein: The front lower end of the electronic injection pen (2) is provided with a liquid observation window (6), and the bottom of the injection pen is threadedly connected with a pen cap.

4. An auto-correctable vertically injected pen as claimed in claim 3, wherein: The correction module (3) includes a telescopic spring (31), which is fixedly connected to the upper end of the shell (1) and located between the inner wall of the shell (1) and the electronic injection pen (2), the bottom of the telescopic spring (31) is fixedly connected with a base ring (32), the bottom of the base ring (32) is fixedly connected with a support (33) in a ring shape at equal intervals, the bottom of the support (33) is fixedly connected with a vertical correction ring (34), the vertical correction ring (34), the support (33) and the base ring (32) are all slidingly connected between the inner wall of the shell (1) and the electronic injection pen (2).

5. An auto-correctable vertically injected pen as claimed in claim 4, wherein: The limiting module (4) includes a sliding groove (41), which is provided in the middle of the top of the shell (1), the inside of the sliding groove (41) is fixedly connected with a limiting spring (42), the end of the limiting spring (42) is fixedly connected with a sliding block (43), the top side of the sliding block (43) is fixedly connected with a limiting pin (44), the end of the limiting pin (44) is clamped with the correction module (3).

6. An auto-correctable vertically injected pen as claimed in claim 5, wherein: The correction module (3) further includes a strip-shaped groove (35), which is provided on the side of the shell (1) close to the liquid observation window (6), the inside of the strip-shaped groove (35) is slidingly connected with a connecting arm (36), the lower end of the connecting arm (36) is fixedly connected with the outside of the base ring (32), the upper end of the connecting arm (36) is fixedly connected with a clamping ring (37), and the limiting pin (44) is inserted into the inside of the clamping ring (37).

7. An auto-correctable vertically injected pen as claimed in claim 6, wherein: The top of the sliding block (43) is fixedly connected with an adjusting pull ring (45) away from the limiting pin (44), and the side surface shape of the sliding block (43) and the cross-sectional shape of the internal cavity of the sliding groove (41) are both convexly arranged.

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