CN117205405A

CN117205405A - Injection device for automatic exhaust, exhaust control method, control device and electronic equipment

Info

Publication number: CN117205405A
Application number: CN202210626304.3A
Authority: CN
Inventors: 王勇; 余鹏; 任孺; 雷亚平; 高志军
Original assignee: Chongqing Jinsaixing Medical Technology Co ltd
Current assignee: Chongqing Jinsaixing Medical Technology Co ltd
Priority date: 2022-06-02
Filing date: 2022-06-02
Publication date: 2023-12-12

Abstract

The invention relates to the technical field of medicine injection, and provides an automatic exhaust injection device, an exhaust control method, a control device and electronic equipment, wherein the injection device comprises a main body, a medicine bin, a push injection component, a second pressure sensor and a controller; the main body is provided with a pushing outlet, the medicine bin is provided with a pushing inlet, the medicine bin is detachably connected with the main body, and the pushing outlet corresponds to the pushing inlet; the pushing assembly is arranged in the main body and corresponds to the pushing outlet; the second pressure sensor can acquire the pushing pressure of the pushing assembly when working; the controller is disposed within the body and electrically connected to the second pressure sensor and the bolus assembly. The resistance when pushing bottle plug discharge air and the discharge liquid medicine is different, and then leads to pushing pressure to appear changing, through the pushing pressure that detects pushing component, can distinguish exhaust state or flowing back state, can also judge whether the exhaust is accomplished, and then intelligent control injection device carries out the exhaust.

Description

Injection device for automatic exhaust, exhaust control method, control device and electronic equipment

Technical Field

The invention relates to the technical field of medicine injection, in particular to an automatic exhaust injection device, an exhaust control method, a control device and electronic equipment.

Background

Currently, in the treatment of some diseases, it is necessary to administer drugs (e.g., growth hormone, insulin, etc.) to the patient on time, and such drugs are usually administered by self-injection. The air and the liquid medicine exist in the injected medicine bottle, and the air in the needle tube is required to be discharged when the medicine bottle is used, so that the air is prevented from being injected into a patient. The related injection work is mostly operated by non-professional medical staff, and the exhaust operation of the traditional injection device is complex, so that the complete exhaust of gas is ensured, the liquid medicine is prevented from being sprayed out due to excessive exhaust, and the exhaust work of the injection device brings great trouble to patients with inconvenient actions or inflexible hands and feet.

Disclosure of Invention

The present invention is directed to solving at least one of the technical problems existing in the related art. Therefore, the injection device provided by the invention has the advantages that the injection component is connected with the second pressure sensor, the second pressure sensor can acquire the injection pressure of the injection component during working, and whether the air exhaust is finished is judged according to the injection pressure, so that the automatic air exhaust is realized, and the injection device is convenient to use. Meanwhile, the injection device can accurately control the exhaust process, so that the waste of liquid medicine is avoided, and the use cost of a user is reduced.

The embodiment of the invention also provides an exhaust control method.

The embodiment of the invention also provides a control device.

The embodiment of the invention also provides electronic equipment.

The embodiment of the invention also provides a non-transitory computer readable storage medium.

An embodiment according to a first aspect of the present invention provides an injection device comprising:

a main body formed with a push outlet;

the medicine bin is provided with a pushing inlet, the medicine bin is detachably connected to the main body, the pushing inlet corresponds to the pushing outlet, and a fixing seat suitable for placing a card bottle is arranged in the medicine bin;

a bolus assembly disposed within the body and corresponding to the bolus outlet;

the second pressure sensor is connected to one side of the push injection assembly, which is away from the push outlet;

and a controller disposed within the body and electrically connected to the bolus assembly and the second pressure sensor.

According to one embodiment of the invention, the bolus assembly comprises:

the bracket is arranged in the main body and is connected with the main body;

the driving motor is connected to the bracket and is electrically connected to the controller, a lead screw is formed at the output end of the driving motor, and the axis of the lead screw corresponds to the center of the pushing outlet;

The screw rod sleeve is rotationally connected with the screw rod and is positioned at one side of the driving motor facing the pushing outlet;

and the screw sleeve limiting piece is used for limiting the rotation of the screw sleeve.

According to one embodiment of the invention, the bolus assembly further comprises:

and the screw sleeve end cover is connected to one end of the screw sleeve, which is away from the driving motor.

the sliding resistance-changing component is in transmission connection with the screw sleeve and is electrically connected with the controller;

and/or an encoder connected to the driving motor and electrically connected to the controller.

According to one embodiment of the present invention, further comprising:

the prompt component is arranged in the main body and is electrically connected with the controller.

According to an embodiment of the second aspect of the present invention, there is provided an exhaust gas control method including:

acquiring the injection pressure of the injection assembly during working;

when the pushing pressure is determined to be smaller than a preset pressure threshold value, the pushing assembly is controlled to continuously push towards the direction of the fixing seat, and exhaust is carried out;

and when the pushing pressure is determined to be greater than or equal to the preset pressure threshold, controlling the pushing assembly to stop pushing.

According to one embodiment of the present invention, when the bolus pressure is determined to be equal to or greater than the preset pressure threshold, the controlling the bolus assembly to stop pushing further includes:

and sending out prompt information of exhaust end and/or preparation for injection.

According to an embodiment of the third aspect of the present invention, there is provided a control device including:

the acquisition module is used for acquiring the pushing pressure of the pushing assembly during working;

the control module is used for controlling the pushing assembly to continuously push towards the direction of the fixed seat to exhaust when the pushing pressure is determined to be smaller than a preset pressure threshold value; and controlling the pushing component to stop pushing when the pushing pressure is determined to be greater than or equal to the preset pressure threshold.

An electronic device according to an embodiment of a fourth aspect of the present invention includes a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor implements the exhaust gas control method according to the embodiment of the second aspect of the present invention when executing the program.

A non-transitory computer readable storage medium provided according to an embodiment of the fifth aspect of the present invention has stored thereon a computer program which, when executed by a processor, implements the steps of the exhaust gas control method provided according to an embodiment of the second aspect of the present invention.

The above technical solutions in the embodiments of the present invention have at least one of the following technical effects:

an embodiment of the first aspect of the present invention provides an injection device comprising a body, a cartridge, a bolus assembly, a second pressure sensor, and a controller; the main body is provided with a pushing outlet, the medicine bin is provided with a pushing inlet, the medicine bin is detachably connected with the main body, and when the medicine bin is arranged on the main body, the pushing outlet corresponds to the pushing inlet; the pushing and injecting assembly is arranged in the main body and corresponds to the pushing and injecting outlet, and is used for pushing the card type bottle in the fixing seat so as to realize the exhaust of the card type bottle and the injection of the liquid medicine; the second pressure sensor is arranged on one side of the pushing assembly, which is away from the pushing outlet, and can acquire the pushing pressure of the pushing assembly when working; the controller is disposed within the body and electrically connected to the second pressure sensor and the bolus assembly. After the pushing injection assembly contacts the clamping bottle in the fixing seat, pushing injection pressure can be transmitted to the second pressure sensor. The resistance when pushing bottle plug discharge air and the discharge liquid medicine is different, and then leads to pushing pressure to appear changing, through the pushing pressure that detects pushing component, can distinguish exhaust state or flowing back state, can also judge whether exhaust is accomplished, and then intelligent control injection device exhausts, need not user's manual operation, and is comparatively convenient during the use. Meanwhile, the injection device can accurately control the exhaust process, so that the waste of liquid medicine is avoided, and the use cost of a user is reduced.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the related art, the drawings that are required to be used in the embodiments or the related technical descriptions will be briefly described, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.

FIG. 1 is a schematic illustration of a bolus assembly, second pressure sensor, provided by an embodiment of the present invention;

FIG. 2 is a perspective view of an injection device according to an embodiment of the present invention;

FIG. 3 is a second perspective view of an injection device according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view of an injection device according to an embodiment of the present invention;

FIG. 5 is a perspective view of a body provided by an embodiment of the present invention;

FIG. 6 is a perspective view of a cartridge provided by an embodiment of the present invention;

FIG. 7 is an internal schematic view of an injection device provided in an embodiment of the present invention;

FIG. 8 is an exploded view of an injection device provided by an embodiment of the present invention;

FIG. 9 is a flow chart of an exhaust control method provided by an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a control device according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.

Reference numerals:

100. a main body; 102. a push outlet; 103. a connecting piece; 1031. a first sliding groove; 1032. a second sliding groove; 1033. a locking groove;

120. a medicine bin; 1201. a chute; 1202. a second viewing window; 121. a boss; 122. a push inlet; 123. a leaf spring; 1232. an elastic protrusion; 124. a fixing seat; 1242. a through hole; 1244. an external thread; 1246. a first viewing window; 126. a clip-on bottle securing plug; 128. a liquid outlet;

140. a temperature sensor;

160. a controller; 162. a power key; 166. an injection key; 168. type C cover;

180. a prompting component; 182. a buzzer; 184. a display screen;

200. a card bottle; 202. a bottle body; 204. a bottle stopper;

220. a bolus assembly; 222. a bracket; 224. a driving motor; 225. a second pressure sensor; 226. a screw rod; 227. a screw sleeve end cover; 228. a screw sleeve; 229. a screw sleeve limiting piece; 230. a sliding resistance variable member;

240. a needle-hiding sleeve; 242. a slider; 244. an elastic member; 246. a toggle member;

260. And a third pressure sensor.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which would be apparent to one of ordinary skill in the art without making any inventive effort are intended to be within the scope of the invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In describing embodiments of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "coupled," and "connected" should be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present invention will be understood in detail by those of ordinary skill in the art.

In embodiments of the invention, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The related injection work is mostly operated by non-professional medical staff, and the exhaust operation of the traditional injection device is more complicated, so that the complete exhaust of gas is ensured, the liquid medicine is prevented from being sprayed out due to excessive exhaust, the waste of the liquid medicine is avoided, and the exhaust work of the injection device brings great trouble to patients with inconvenient actions or inflexible hands and feet.

Referring to fig. 1-8, an injection device for automatic venting is provided according to an embodiment of the first aspect of the present invention, which includes a main body 100, a cartridge 120, a second pressure sensor 225, a bolus assembly 220, and a controller 160.

The main body 100 is a driving and controlling part of the injection device, and is internally provided with a controller 160, a bolus unit 220, and the like, and can perform electric bolus operation on the liquid medicine in the cartridge 200. The main body 100 is formed with a pushing outlet 102, and the pushing component 220 can perform telescopic movement at the pushing outlet 102, so as to realize injection of liquid medicine.

The cartridge 120 is formed with a push inlet 122, and the cartridge 120 is detachably connected to the main body 100, and the push inlet 122 corresponds to the push outlet 102. The medicine compartment 120 is provided with a fixing seat 124, the fixing seat 124 is a tubular structure with two through ends, and the fixing seat 124 is suitable for placing the card bottle 200. One end of the holder 124 corresponds to the push inlet 122, and the tail of the cartridge 200 may be in contact with the bolus assembly 220, with the other end of the holder 124 facing away from the push inlet 122 for mounting a needle or the like.

In order to precisely control the injection operation of the medical fluid, the injection apparatus further includes a push injection assembly 220 provided in the main body 100, the push injection assembly 220 corresponding to the push outlet 102 and electrically connected to the controller 160 for pushing the cartridge 200 in the holder 124 to discharge air or medical fluid.

A second pressure sensor 225 is coupled to a side of the bolus assembly 220 facing away from the bolus outlet 102, the second pressure sensor 225 being configured to obtain a bolus pressure at which the bolus assembly 220 is operated.

The controller 160 is disposed within the body 100 and is electrically connected to the bolus assembly 220 and the second pressure sensor 225.

In some embodiments, the controller 160 includes a master PCBA, a central processor mounted on the master PCBA, and the like.

According to the injection device provided by the embodiment of the invention, when the push injection assembly 220 performs telescopic movement, the card bottle 200 in the fixing seat 124 can be pushed to discharge gas or liquid medicine. The cartridge 200 includes a body 202 and a stopper 204, and when the gas and the liquid medicine are discharged, the body 202 has different resistances to the stopper 204. Bolus assembly 220 is operated to undergo a change in bolus pressure. The second pressure sensor 225 is a highly sensitive pressure sensor, and can detect a minute pressure change, and by determining the magnitude of the injection pressure, the stress state of the stopper 204 can be determined, and thus whether the stopper is in the air-release state or whether the air release is completed.

Controller 160 obtains the bolus pressure detected by second pressure sensor 225, compares the bolus pressure to a preset pressure threshold, and determines a subsequent operating state of bolus assembly 220 based on the comparison.

In the first case, the bolus pressure is zero, and at this time, the bolus assembly 220 has not yet contacted the stopper 204 of the cartridge 200, and the bolus assembly 220 is controlled to continue pushing in the direction of the holder 124.

In the second case, the injection pressure is less than the preset pressure threshold, and the injection assembly 220 is still in the exhaust state when the injection assembly 220 is not yet discharged, so as to control the injection assembly 220 to continue pushing in the direction of the fixing seat 124 for exhausting.

In the third case, the injection pressure is greater than or equal to the preset pressure threshold, and at this time, the exhaust of the injection assembly 220 is completed, the liquid discharge is started, and the injection assembly 220 is controlled to stop the injection immediately, so that the waste of the liquid medicine is avoided.

In some embodiments, bolus assembly 220 includes a holder 222, a drive motor 224, a lead screw housing 228, and a lead screw housing limiter 229.

The bracket 222 is disposed in the main body 100 and is connected to an inner wall of the main body 100. The driving motor 224 is mounted on the bracket 222 and electrically connected with the controller 160, and the controller 160 can control the rotation speed and the rotation angle of the driving motor 224, so as to precisely control the injection process of the liquid medicine.

The output end of the driving motor 224 is formed with a screw rod 226, and the axis of the screw rod 226 corresponds to the center of the pushing outlet.

The screw rod sleeve 228 is rotatably connected to the screw rod 226, and the screw rod sleeve 228 is located at one side of the driving motor 224 near the pushing outlet 102, and is used for pushing the bottle stopper 204 to discharge gas or liquid medicine.

In some embodiments, the lead screw 226 is directly connected to the drive motor 224, and the lead screw 226 moves in synchronization with the drive motor 224.

In other embodiments, the lead screw 226 is coupled to the drive motor 224 via a speed reducer that reduces the speed of the drive motor 224 while increasing the rotational torque of the lead screw 226, thereby miniaturizing the drive motor 224.

The screw housing 228 is further connected to a screw housing stopper 229, the screw housing stopper 229 is connected to the bracket 222 or the inner wall of the main body 100, and the screw housing stopper 229 can rotate the screw housing 228 relative to the screw 226, but limits the rotation of the screw housing 228 itself. When the driving motor 224 rotates, the screw rod 226 rotates, and the screw rod sleeve 228 moves back and forth relative to the screw rod 226. The screw housing 228 may be used to inject the drug solution in the cartridge 200 into the patient when the screw housing is positioned adjacent to the push outlet 102 and the push inlet 122.

In some embodiments, the outer profile of the screw sleeve 228 is prismatic, the screw sleeve limiter 229 is formed with a prismatic limiting aperture, and the screw sleeve 228 is threaded into the limiting aperture. When the screw 226 rotates, the screw sleeve 228 can move back and forth in the limiting hole, but cannot rotate.

In other embodiments, the screw sleeve limiter 229 is a limiting block disposed on an outer side wall of the screw sleeve 228, and the bracket 222 is provided with a limiting groove, where the limiting block is slidably connected to the limiting groove. When the screw rod 226 rotates, the screw rod sleeve 228 moves back and forth relative to the bracket 222, the limiting block slides relative to the limiting groove, and the screw rod sleeve 228 cannot rotate.

In some embodiments, bolus assembly 220 further comprises a lead screw housing end cap 227, lead screw housing end cap 227 connected to an end of lead screw housing 228 facing away from drive motor 224, lead screw housing end cap 227 for direct contact with stopper 204 of cartridge bottle 200.

First, the end of the screw sleeve 228 is blocked by the screw sleeve end cover 227, so that external impurities can be prevented from entering the screw sleeve 228, the screw 226 and the screw sleeve 228 are prevented from being interfered by the impurities when rotating, and the injection precision of the push injection assembly 220 is improved. Secondly, the screw sleeve end cover 227 can prevent water or electrolyte solution from entering the screw sleeve 228, so that the screw 226 and the screw sleeve 228 are prevented from being corroded, and the service life of the injection device is prolonged. Furthermore, the screw sleeve end cover 227 has a larger friction coefficient towards one end of the cartridge bottle 200, can be stably contacted with the bottle stopper 204 of the cartridge bottle 200, can ensure that the bottle stopper 204 stably moves in the bottle body 202, improves the stability of the injection process, and can accurately control the injection quantity of the medicine.

Where bolus assembly 220 includes a support 222, a drive motor 224, a lead screw 226, a lead screw sleeve 228, and a lead screw sleeve limiter 229, second pressure sensor 225 is mounted at the rear of drive motor 224, i.e., at the end remote from lead screw 226.

When the screw housing 228 contacts the stopper 204 of the cartridge 200, pressure generated upon contact is transmitted to the second pressure sensor 225 along the screw housing 228, the screw 226, and the driving motor 224. The resistance of the stopper 204 when squeezing air and chemical liquid is different, and the air in the cartridge 200 can be discharged by differentiating between the resistance when squeezing air and chemical liquid.

It should be noted that, the second pressure sensor 225 is disposed between the driving motor 224 and the inner wall of the main body 100, the driving motor 224 may slide back and forth relative to the inner wall of the main body 100, and the second pressure sensor 225 may obtain the injection pressure between the screw sleeve 228 and the bottle stopper 204.

In the first case, the driving motor 224 is fixedly connected to the bracket 222, and the bracket 222 can slide relative to the inner wall of the main body 100, so as to transmit the pressure between the screw sleeve 228 and the bottle stopper 204.

In the second case, the driving motor 224 is slidably connected to the bracket 222, the bracket 222 is fixedly connected to the inner wall of the main body 100, and the driving motor 224 can transmit the pressure between the screw sleeve 228 and the bottle stopper 204.

In a third aspect, the drive motor 224 is slidably coupled to the support 222, the second pressure sensor 225 is coupled to the drive motor 224 and the support 222, the support 222 provides support for the second pressure sensor 225, and the drive motor 224 is configured to transmit the bolus pressure between the lead screw housing 228 and the stopper 204.

In the injection process, firstly, the screw rod sleeve 228 rapidly advances to search for the bottle stopper 204 and exhaust, when the screw rod sleeve 228 contacts the bottle stopper 204, the speed is reduced, the driving motor 224 drives the screw rod sleeve 228 to rotate for two circles and back for 1.4mm, the contact pressure between the bottle stopper 204 and the screw rod sleeve 228 is removed, the bottle stopper 204 can be restored to a natural form, the realization of exhaust work is facilitated, the waste of liquid medicine caused by overshoot can be prevented, and whether the exhaust is completed can be judged according to resistance information when the bottle stopper 204 advances; next, after the exhaust is completed, the screw housing 228 advances at a set speed to inject the chemical into the human body.

According to the embodiment of the present invention, the controller 160 is electrically connected to the driving motor 224, and can precisely control the rotation speed and rotation angle of the driving motor 224.

In some embodiments, bolus assembly 220 further includes a sliding resistance variable member 230, sliding resistance variable member 230 drivingly coupled to lead screw housing 228 and electrically coupled to controller 160.

It will be appreciated that the sliding resistance variable member 230 includes a resistance variable structure, and that the resistance value of the sliding resistance variable member 230 may be changed by changing the position of the screw housing 228 as it moves. Through early experiments and accurate calculations, the controller 160 may determine the position of the screw housing 230 according to the resistance value of the sliding resistance variable member 230, thereby controlling the injection process.

The sliding varistor part 230 includes a sliding varistor PCBA electrically connected to the main PCBA through FPC flexible flat cables.

In other embodiments, bolus assembly 220 further includes an encoder coupled to drive motor 224 and electrically coupled to controller 160.

The encoder may record the rotation speed and the number of rotations of the driving motor 224, and the controller 160 may control the injection speed and the injection amount by controlling the rotation speed and the number of rotations of the driving motor 224. When the sliding resistance variable member 230 is used at the same time, the sliding resistance variable member 230 can provide position feedback, thereby realizing closed-loop control, and improving injection precision.

In some embodiments, the injection device further includes a reminder assembly 180, the reminder assembly 180 being disposed within the body 100 and electrically connected to the controller 160, the reminder assembly 180 being capable of sending reminder information including in progress of the exhaust, end of the exhaust, ready for injection, and the like.

In some embodiments, the prompt component 180 includes at least one of a buzzer 182 and a display 184, the buzzer 182 may alert the user to the progress of the evacuation or the end of the evacuation by vibration or sound, and the display 184 may alert the user to the progress of the evacuation and the end of the evacuation by color, symbol, and content.

In the related art, the injection device can detect the temperature of the liquid medicine, and when the temperature exceeds a set value, the injection device gives an alarm, so that the medicine can be in a set range during injection. However, the related injection device can only measure the ambient temperature, and cannot detect the temperature of the liquid medicine, so that the measurement result is inaccurate.

According to the embodiment of the invention, the injection device further comprises a temperature sensor 140, the temperature sensor 140 is arranged in the main body 100 and is installed at the pushing outlet 102, the temperature sensor 140 comprises a sensing end, and when the main body 100 is connected with the medicine compartment 120, the sensing end can be abutted against the card bottle 200 in the fixing seat 124, so that the temperature of the card bottle 200 and the medicine liquid can be directly detected.

The controller 160 is electrically connected to the temperature sensor 140, and the controller 160 can acquire temperature information of the cartridge 200 and the chemical solution.

The prompt component 180 can send out prompt information to remind the user of paying attention to the temperature of the liquid medicine, and avoid the temperature of the liquid medicine exceeding the preset use temperature, thereby affecting the curative effect of the liquid medicine.

In the case where the prompt unit 180 includes the buzzer 182 and the display 184, the buzzer 182 prompts the user to notice the temperature state of the medicine liquid by vibration and sound, and the display 184 prompts the user to notice the temperature state of the medicine liquid by color, symbol, and contents. Meanwhile, the display screen 184 can accurately display the dosage of the residual liquid medicine in real time, the injection dosage can be set before injection, and when the set injection dosage is larger than the residual dosage, the display screen 184 can give a prompt to cancel the injection or continue the injection. If the injection is selected to continue, the display 184 also indicates how many doses are not being injected, and the card bottle 200 needs to be replaced to complete the injection, so as to ensure the accuracy of the injected doses. After replacement of the cartridge 200, the display 184 displays the remaining dose for subsequent use. In addition, the display 184 may display information such as the remaining power, injection speed, and status.

The display 184 may be controlled by a key or by touch.

The medical fluid needs to be refrigerated at a low temperature, and after the injection is completed, the user may forget to detach the medicine compartment 120 and put it into the refrigerator. The temperature sensor 140 may directly detect the temperature of the cartridge 200 and the medical fluid and transmit temperature information to the controller 160. The controller 160 gives an instruction to the prompt unit 180, and the prompt unit 180 prompts the user to put the medicine compartment 120 back to the refrigerator for preservation through sound, vibration, color or text information, and the injection operation can be prohibited.

The prompt information comprises first prompt information, second prompt information and the like, wherein the first prompt information is used for reminding a user that the liquid medicine temperature meets the requirements, and the second prompt information is used for reminding the user that the liquid medicine temperature does not meet the requirements.

According to the embodiment of the invention, the temperature sensor 140 is directly contacted with the card bottle 200 in the fixing seat 124, so that the temperature of the card bottle 200 and the liquid medicine can be directly detected, instead of the ambient temperature, the measurement result is accurate, and the condition that the curative effect of the liquid medicine changes can be avoided.

In some embodiments, the fixing base 124 is a cylindrical structure with two ends penetrating, a card bottle accommodating cavity is formed in the fixing base 124, a through hole 1242 communicating with the card bottle accommodating cavity is formed in the fixing base 124, and the temperature sensor 140 is disposed through the through hole 1242.

The sensing end of the temperature sensor 140 is abutted against the cartridge bottle 200 in the fixing seat 124, so that the temperature of the cartridge bottle 200 and the liquid medicine can be directly detected.

The liquid outlet 128 is formed on one side of the medicine bin 120 away from the pushing inlet 122, the external thread 1244 suitable for connecting a needle is formed on one end of the fixing seat 124 facing the liquid outlet 128, the assembling process of the medicine bin 120, the card bottle 200 and the needle is simple, and the installation efficiency is high.

The clip bottle 200 comprises a bottle body 202 and a bottle stopper 204, wherein an opening is formed at the tail of the bottle body 202, the bottle stopper 204 is inserted into the opening, and the bottle stopper 204 is used for plugging the liquid medicine in the bottle body 202.

It should be noted that, the bottle stopper 204 has a flexible structure, and the injection assembly 220 may inject the liquid medicine into the human body when pushing the bottle stopper 204 into the bottle body 202.

According to the injection device provided by the embodiment of the invention, the medicine compartment 120 and the main body 100 are in a detachable structure, the medicine compartment 120 and the card bottle 200 are installed together, the medicine compartment 120 and the card bottle 200 can be placed in a refrigerator together for refrigeration, and electronic elements in the main body 100 cannot be interfered by moisture in the refrigerator.

In some embodiments, a carafe fixing plug 126 is detachably connected to an end of the fixing base 124 facing the push inlet 122, and the carafe fixing plug 126 is adapted to limit the carafe 200 from falling out of the fixing base 124.

The medicinal liquid in the cartridge 200 is required to be placed in a refrigerator for cold storage treatment to ensure its medicinal effect. In use, the medicine compartment 120 is taken out of the refrigerator and loaded with the outer body 100, so that the injection of medicine liquid can be performed. To prevent the cartridge 200 from falling off when it is taken out or loaded, a cartridge fixing stopper 126 is mounted on the fixing base 124.

According to an embodiment of the present invention, a liquid outlet 128 is formed at one end of the medicine compartment 120 facing away from the injection inlet 122, and a needle is mounted at one end of the fixing base 124 facing toward the liquid outlet 128.

In some embodiments, the injection device includes a hidden needle assembly for shielding the needle prior to injection, the hidden needle assembly including a hidden needle sleeve 240, a slider 242, a resilient member 244, and a toggle member 246.

The outer diameter of the hidden needle sleeve 240 matches the inner diameter of the liquid outlet 128, and the hidden needle sleeve 240 is slidably coupled to the liquid outlet 128 and can be extended or retracted relative to the drug cartridge 120.

The sliding member 242 is connected to the inner wall of the medicine compartment 120, and the extending direction of the sliding member 242 is the same as the sliding direction of the hidden needle sleeve 240. The number of sliders 242 is at least one for stabilizing the movement of the hidden needle sleeve 240.

In some embodiments, the sliding member 242 may be a groove formed on the inner wall of the drug cartridge 120, and a sliding block is formed on the outer wall of the hidden needle sleeve 240, and the sliding block is in matching connection with the groove.

In other embodiments, the slider 242 includes a guide cylinder, the hidden needle sleeve 240 is connected to a guide post, and the guide post is movably inserted into the guide cylinder. When the hidden needle sleeve 240 extends or contracts relative to the medicine compartment 120, the hidden needle sleeve is limited by the liquid outlet 128 and the guide cylinder, and the movement process is stable.

An elastic member 244 is further provided between the drug cartridge 120 and the hidden needle sleeve 240, the elastic member 244 being adapted to move the hidden needle sleeve 240 in a direction away from the drug cartridge 120. In the natural state, the hidden needle sleeve 240 extends out relative to the medicine bin 120 to shield the needle.

A chute 1201 is formed in the sidewall of the cartridge 120, and a driver 246 is slidably coupled to the chute 1201 and drivingly coupled to the needle-retracting sleeve 240.

It should be noted that, the sliding direction of the toggle member 246 in the sliding slot 1201 is the same as the extending direction of the hidden needle sleeve 240, and the user may control the extension and retraction of the hidden needle sleeve 240 through the toggle member 246.

When the sliding member 242 includes a guide cylinder and a guide post, the elastic member 244 is a spring, and the spring is disposed in the guide cylinder and connected to the guide post.

When the toggle member 246 is moved away from the outlet 128, the needle exposes the outlet 128 and the exposed needle pierces the skin of the patient for injection. When the toggle piece 246 is close to the liquid outlet 128, the needle hiding sleeve 240 shields the position of the needle, so that the user cannot see the needle, fear can be eliminated, and skin injury caused by accident can be avoided.

In some embodiments, the holder 124 has a first viewing window 1246 formed thereon and the cartridge 120 has a second viewing window 1202 formed thereon, the first viewing window 1246 corresponding to the second viewing window 1202.

When the liquid medicine is injected, a user can directly see the injection condition and the retention condition of the liquid medicine in the card bottle 200 through the first observation window 1246 and the second observation window 1202, and the use is more convenient. Transparent windows made of glass or plastic can be arranged at the first observation window 1246 and the second observation window 1202, so that the external environment interference is reduced, and mark information such as scales can be arranged on the transparent windows, thereby facilitating the user to know the injection condition of the liquid medicine.

In some embodiments, the first viewing window 1246 and the second viewing window 1202 are greater than 23mm in length, greater than 8mm in width, greater than 95% light transmittance of the transparent window, and greater than 3H in surface hardness.

According to an embodiment of the present invention, the body 100 is detachably connected to the cartridge 120, and the push outlet 102 corresponds to the push inlet 122.

In some embodiments, the pushing outlet 102 is provided with a connecting piece 103, and the connecting piece 103 is movably inserted into the pushing inlet 122.

The outer side wall of the connection member 103 is formed with a first sliding groove 1031 and a second sliding groove 1032 which are communicated with each other, an included angle is formed between the first sliding groove 1031 and the second sliding groove 1032, and the first sliding groove 1031 extends to an edge position of the connection member 103.

The inner wall of the medicine compartment 120 is formed with a boss 121, and the boss 121 is matched with the first and second sliding grooves 1031 and 1032.

When the cartridge 120 is loaded on the main body 100, the pushing inlet 122 corresponds to the pushing outlet 102, the boss 121 first enters the first sliding groove 1031, and the connector 103 is inserted into the pushing inlet 122. After the connector 103 is completely inserted into the pushing inlet 122, the medicine cartridge 120 or the main body 100 is rotated, and the boss 121 enters the second sliding groove 1032.

It should be noted that, the first sliding groove 1031 and the second sliding groove 1032 have an included angle, and the second sliding groove 1032 can form a limiting effect on the boss 121, so as to prevent the drug storage 120 from falling off along the main body 100, and is more stable in use.

In some embodiments, the inner wall of the cartridge 120 is provided with a leaf spring 123, the leaf spring 123 is formed with an elastic protrusion 1232, and the outer sidewall of the connection member 103 is provided with a locking groove 1033.

When the medicine cartridge 120 is loaded, a certain force is applied to the main body 100 and the medicine cartridge 120, and the boss 121 enters the first sliding groove 1031 and then enters the second sliding groove 1032. When the boss 121 reaches the end of the second sliding groove 1032, the elastic protrusion 1232 enters the locking groove 1033, and the elastic protrusion 1232 and the locking groove 1033 bring the body 100 and the cartridge 120 into a locked state, and they are not automatically released. The medicine compartment 120 and the main body 100 are rotated by force, the elastic protrusions 1232 are separated from the locking grooves 1033, so that the main body 100 and the medicine compartment 120 can be detached, and the stability between the main body 100 and the medicine compartment 120 is high.

In some embodiments, a first pressure sensor is provided at the push outlet 102, the first pressure sensor being electrically connected to the controller 160.

The stable connection of the main body 100 and the medicine bin 120 is a precondition for developing injection work, and related to the problems of circuit connection, injection precision and the like, the stable connection of the main body 100 and the medicine bin 120 needs to be ensured before the injection of medicine liquid, so that the situation of midway falling off or power failure is avoided. A first pressure sensor is provided at the push outlet 102, and is configured to obtain a pressure when the main body 100 contacts the drug cartridge 120, and after receiving the pressure information when the main body 100 is locked with the drug cartridge 120, the controller 160 starts an injection operation.

When the connecting piece 103 is arranged at the pushing outlet 102, the first pressure sensor is used for acquiring pressure information of the boss 121 at the tail end of the second sliding groove 1032, so that the medicine compartment 120 is locked with the main body 100.

The cartridge 200 includes a liquid medicine and a part of gas, and the gas needs to be exhausted during injection to avoid the injection of the gas into the human body, so that the operation of exhausting the gas before injection is required.

In the related art, under the operation of non-professional medical staff, the injection device may be started earlier before injection or be abnormally separated from the patient during the injection, so that the liquid medicine is wasted, and the injection of the expected dosage cannot be completed. At the same time, there may be a concern that premature repositioning of bolus assembly 220 may result in flashback.

In some embodiments, a third pressure sensor 260 is disposed at the liquid outlet 128, and the third pressure sensor 260 is electrically connected to the controller 160, so as to obtain pressure information between the liquid outlet 128 and the skin, and further determine the contact state of the injection device with the skin.

The third pressure sensor 260 is mounted on the medicine compartment 120, the controller 160 is mounted in the main body 100, the circuit between the two is in a detachable connection structure, for example, the circuit is connected through a Pogo pin connector, an electrode is arranged at the pushing outlet 102 of the main body 100, the electrode is connected to the controller 160, a Pogo pin connector is arranged at the pushing inlet 122 of the medicine compartment 120, and the Pogo pin connector is electrically connected to the third pressure sensor 260. After the main body 100 and the cartridge 120 are loaded together, the third pressure sensor 260 is electrically connected to the controller 160 under the elastic action of the Pogo pin connector.

When the pressure information acquired by the third pressure sensor 260 is zero, there is no contact between the injection device and the skin, so that it is necessary to prompt the user or stop the injection operation.

When the pressure information acquired by the third pressure sensor 260 is small, the contact between the injection device and the skin is unstable, and it is necessary to prompt the user or stop the injection operation.

When the pressure information acquired by the third pressure sensor 260 meets a certain threshold value, the contact between the injection device and the skin is stable, and normal injection operation can be performed.

According to the injection device provided by the embodiment of the invention, the controller 160 comprises a main PCBA, a sliding rheostat PCBA and a Type C PCBA, and the sliding rheostat PCBA and the Type C PCBA are connected to the main PCBA through FPC soft cables. The main PCBA is connected with a central processing unit, a buzzer, a motor connecting end and other components, and the three PCBA are connected to the bracket 222.

The main body 100 is formed with a plurality of mounting holes for mounting the Type C interface, the power key 162, the reset key, the injection key 166, etc., and the user interacts with the injection device through the display 184 and a plurality of function keys, so as to realize intelligent control of the injection process. The display 184 is mounted to the main PCBA by a display bracket and the display cover is attached to the main body 100 by a backing adhesive.

In addition, the Type C cover 168 is inserted at the Type C interface, and the Type C cover 168 can prevent water from entering the main body 100, so that the safety of the injection device is improved.

Referring to fig. 9, an exhaust gas control method according to an embodiment of the second aspect of the present invention includes:

s300, obtaining the pushing pressure of the pushing assembly during working.

And S310, when the pushing pressure is determined to be smaller than a preset pressure threshold, controlling the pushing assembly to continuously push towards the direction of the fixing seat so as to exhaust.

And S320, controlling the pushing assembly to stop pushing when the pushing pressure is greater than or equal to the preset pressure threshold.

In the third case, the injection pressure is greater than or equal to the preset pressure threshold, and at this time, the exhaust of the injection component 220 is finished, the liquid discharge is started, and the injection component 220 is controlled to stop the injection, so that the waste of the pharmaceutical industry is avoided.

In some embodiments, controlling the bolus assembly to stop pushing when the bolus pressure is determined to be greater than or equal to the preset pressure threshold further comprises:

s330, sending out prompt information of exhaust end and/or preparation for injection.

It will be appreciated that after the venting of the infusion assembly 220 is completed, the stopper 204 begins to push the liquid medicine to be discharged, and at this time, the resistance of the stopper 204 increases, the infusion pressure of the infusion assembly 220 changes, and the infusion operation is stopped in time. The prompt component 180 sends out prompt information to remind the patient of the exhaust end and/or the information of preparing injection, and the patient can timely process the prompt information after receiving the prompt information, so as to avoid the denaturation failure of the liquid medicine caused by overlong waiting time.

Referring to fig. 10, a control device provided according to an embodiment of the third aspect of the present invention includes:

And an acquisition module 410, configured to acquire a bolus pressure when the bolus assembly is operated.

And the control module 420 is configured to control the injection assembly to continuously push in a direction where the fixing seat is located when the injection pressure is determined to be less than a preset pressure threshold value, so as to perform exhaust.

The control module 420 is further configured to control the bolus assembly to stop pushing when the bolus pressure is determined to be greater than or equal to the preset pressure threshold.

Referring to fig. 11, an electronic device provided according to an embodiment of the fourth aspect of the present invention may include: processor 810 (processor), communication interface 820 (Communications Interface), memory 830 (memory) and communication bus 840, wherein processor 810, communication interface 820, memory 830 accomplish communication with each other through communication bus 840. Processor 810 may invoke logic instructions in memory 830 to perform an exhaust gas control method comprising: acquiring the injection pressure of the injection assembly during working; when the pushing pressure is determined to be smaller than a preset pressure threshold value, the pushing assembly is controlled to continuously push towards the direction of the fixing seat, and exhaust is carried out; and when the pushing pressure is determined to be greater than or equal to the preset pressure threshold, controlling the pushing assembly to stop pushing.

Further, the logic instructions in the memory 830 described above may be implemented in the form of software functional units and may be stored in a computer-readable storage medium when sold or used as a stand-alone product. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method of the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory 830 (RAM, random Access Memory), a magnetic disk or an optical disk, or other various media capable of storing program codes.

Further, an embodiment of the present invention discloses a computer program product, which includes a computer program stored on a non-transitory computer readable storage medium, the computer program including program instructions, which when executed by a computer, can perform the exhaust gas control method provided in the above method embodiments, the method including: acquiring the injection pressure of the injection assembly during working; when the pushing pressure is determined to be smaller than a preset pressure threshold value, the pushing assembly is controlled to continuously push towards the direction of the fixing seat, and exhaust is carried out; and when the pushing pressure is determined to be greater than or equal to the preset pressure threshold, controlling the pushing assembly to stop pushing.

In another aspect, embodiments of the present invention also provide a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, is implemented to perform the exhaust gas control method provided in the above embodiments, the method including: acquiring the injection pressure of the injection assembly during working; when the pushing pressure is determined to be smaller than a preset pressure threshold value, the pushing assembly is controlled to continuously push towards the direction of the fixing seat, and exhaust is carried out; and when the pushing pressure is determined to be greater than or equal to the preset pressure threshold, controlling the pushing assembly to stop pushing.

The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.

From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.

Claims

1. An automatic exhaust injection device, comprising:

a main body formed with a push outlet;

2. The self-venting injection device of claim 1, wherein the bolus assembly comprises:

the bracket is arranged in the main body and is connected with the main body;

3. The self-venting injection device of claim 2, wherein the bolus assembly further comprises:

4. The self-venting injection device of claim 2, wherein the bolus assembly further comprises:

5. The self-venting injection device of any one of claims 1-4, further comprising:

6. An exhaust gas control method of the automatic exhaust injection device according to any one of claims 1 to 5, comprising:

acquiring the injection pressure of the injection assembly during working;

7. The exhaust gas control method according to claim 6, wherein when the bolus pressure is determined to be equal to or higher than the preset pressure threshold, the bolus assembly is controlled to stop pushing, further comprising:

8. A control apparatus, characterized by comprising:

9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the exhaust gas control method of claim 6 or 7 when executing the program.

10. A non-transitory computer readable storage medium having stored thereon a computer program, which when executed by a processor, implements the steps of the exhaust gas control method according to claim 6 or 7.