CN115054771A

CN115054771A - Can dismantle application formula insulin pump

Info

Publication number: CN115054771A
Application number: CN202210833353.4A
Authority: CN
Inventors: 刘祥华; 谭益民; 刘师宏; 章静; 杨超; 郑湘明; 陈一; 刘超
Original assignee: Hunan Qianshan Medical Apparatus And Instruments Co ltd
Current assignee: Hunan Qianshan Medical Apparatus And Instruments Co ltd
Priority date: 2022-07-14
Filing date: 2022-07-14
Publication date: 2022-09-16
Also published as: WO2024011691A1

Abstract

The invention discloses a detachable pasting type insulin pump, which comprises an injection assembly and a control main board assembly, wherein the control main board assembly is used for controlling the injection assembly to inject liquid medicine into a patient, and the control main board assembly is detachably arranged; according to the preferred embodiment of the invention, the detachable connection mode of the control main board assembly is adopted, so that the most expensive control main board assembly in the insulin pump can be replaced, the use cost of a patient is reduced, and the control main board assembly is more economical and environment-friendly and is beneficial to recycling resources.

Description

Can dismantle application formula insulin pump

Technical Field

The invention relates to the field of insulin pumps, in particular to a detachable pasting type insulin pump.

Background

The insulin pump can simulate a physiological insulin secretion mode and mediate the physiological insulin secretion according to the characteristics of different time insulin physiological secretion, so that the insulin pump is more humanized and more accords with the treatment of the physiological insulin secretion mode; the existing insulin pump is expensive, the pump body is mostly used for a single time, so that the use cost of a patient is overhigh, due to the high price, people who use the pump body mainly concentrate on people who suffer from type 1 diabetes, and patients who suffer from type 2 diabetes and patients who suffer from gestational diabetes basically refuse to use the pump body, so that the popularization of the insulin pump is not facilitated; meanwhile, most of the existing insulin pumps do not have a waterproof function, so that inconvenience is brought to the use of users in daily life; and the drive part in most insulin pumps adopts motor, encoder, reducing gear box, pipe etc. to constitute, leads to insulin pump bulky, and the position that can select to inject is less, and because bulky reason of growing up the pipe leads to carrying inconvenience, disguise poor, and suffer around the different eyesight easily, now designs a can dismantle application formula insulin pump to above-mentioned defect.

Disclosure of Invention

The invention provides a detachable application type insulin pump, which aims to solve the technical problem that the use cost is too high due to the disposable use of a main board component of the existing insulin pump.

The technical scheme adopted by the invention is as follows: the method comprises the following steps: the injection device comprises an injection assembly and a control main board assembly, wherein the control main board assembly is used for controlling the injection assembly to inject liquid medicine into a patient; the control mainboard assembly is detachably arranged.

Further, still include the shell, the shell is used for holding injection subassembly with control mainboard subassembly, the shell includes first casing and second casing, first casing with detachable the linking to each other between the second casing, first casing with the junction of second casing is equipped with waterproof subassembly.

Further, the method is described. The needle hole is used for the needle tube in the injection component to pass through, and one end of the needle hole is provided with a sealing body

Furthermore, the injection assembly comprises a liquid storage assembly, a needle tube assembly and a liquid pumping assembly, one end of the liquid storage assembly is connected with the liquid pumping assembly, the other end of the liquid storage assembly is connected with the needle tube assembly, and the liquid pumping assembly is used for injecting liquid medicine in the liquid storage assembly into the body of a patient through the needle tube assembly.

Furthermore, the liquid pumping assembly comprises an electromagnetic driving assembly and an executing assembly, wherein the electromagnetic driving assembly is used for driving the executing assembly in an electromagnetic driving mode to control the injecting assembly to inject liquid into a patient.

Furthermore, the executing assembly comprises a limiting device, a ratchet and pawl mechanism, a screw rod and a threaded sleeve, the ratchet and pawl mechanism comprises a ratchet wheel and a pawl, the limiting device is connected with the pawl and drives the pawl to reciprocate along the tangential direction of the ratchet wheel, the first end of the pawl is connected with the buckle, the ratchet wheel is connected with the screw rod, the screw rod is connected with a liquid pushing part in the injection assembly, the executing assembly drives the pawl to reciprocate by driving the electromagnetic driving assembly, and the pawl drives the ratchet wheel to rotate in a single direction so as to drive the screw rod to rotate in a stepping mode to push the liquid pushing part in the injection assembly to inject liquid medicine.

Furthermore, the needle tube assembly comprises a needle tube and a needle tube control device, the needle tube is connected with the liquid storage assembly, and the needle tube control device is used for driving the needle tube to be implanted into a patient or pulled out of the patient.

Furthermore, the needle tube control device comprises a slide block component, an elastic component and an inclined plane stop block component, wherein a sliding part on the slide block component is connected with the needle tube; the inclined plane stop block assembly forces the sliding block on the sliding block assembly to reset through the prepressing elastic force applied by the elastic assembly and drives the needle tube to be implanted into the patient; the inclined plane block component overcomes the prepressing elasticity of the elastic component through the cooperation of the inclined plane to push the sliding part on the sliding block component to drive the needle tube to be implanted into the patient.

Furthermore, the sliding block assembly comprises a first sliding block, a second sliding block and a sliding rail, the first sliding block is connected with the needle tube, a first conduction groove is formed in the first sliding block, a second conduction groove is formed in the second sliding block, the outer side of the needle tube is sleeved with the rubber tube, the rubber tube and the needle tube can be arranged in a displacement mode, the second conduction groove is used for containing the rubber tube, an adaptive cavity is formed in the second sliding block, a protruding positioning portion is arranged on the rubber tube, the positioning portion is adaptive to the adaptive cavity, the needle tube penetrates into the rubber tube through the positioning portion, a blocking hole is formed in one end of the first sliding block, a spring thimble is arranged on one side of the second sliding block, and the inclined plane block assembly is located between the first sliding block and the second sliding block.

Furthermore, a sealing body is sleeved at the end part of the rubber tube and is positioned at the joint of the rubber tube and the applying part.

The invention has the following beneficial effects:

(1) the most expensive control main board component is detachably connected in the shell, so that the most expensive control main board component in the insulin pump can be recycled, only the part except the control main board component is discarded as a disposable part, and the control main board component can be assembled with a new disposable part and reused, thereby reducing the use cost of a patient, being more economic and environment-friendly and being beneficial to recycling of resources; simultaneously, the patient only needs to spend few costs and purchases disposable part and replace and can normally use, has reduced the use cost of whole subsides application formula insulin pump of dismantling for most diabetes mellitus patients can both accept and use, do benefit to insulin pump's popularization.

(2) The front cover and the rear cover are well sealed, and the sealing assembly is arranged at the needle hole formed in the shell, so that a good waterproof effect is achieved, the body of a user can be used all the time when the body of the user needs to be in contact with water, frequent taking off and wearing are not needed, and the daily use of the user is facilitated.

(3) The invention does not have a long catheter, but adopts a pasting mode to inject insulin to a user, thereby preventing the phenomenon that the catheter is easy to hang and entangle with other objects due to overlong length and also avoiding the condition that the patient feels uncomfortable due to the long-time contact of the catheter and the body of the patient.

(4) The invention adopts an electromagnetic driving mode to provide pump hydraulic power, does not need to use a motor, a reducer and other devices, ensures that the device has smaller volume, can select more injection parts, such as abdomen, limbs and the like, can reduce the possibility of complications caused by always injecting the same part, is beneficial to the miniaturization of the device by adopting the electromagnetic driving mode, is convenient for hiding an insulin pump, effectively protects the privacy of a patient, simultaneously reduces the use cost of the patient because of not needing the motor, the reducer and other devices, is convenient for popularizing the patient for type 2 diabetes and gestational diabetes patients, ensures that the power output is more stable, direct and reliable by adopting the electromagnetic driving, is beneficial to accurately controlling the insulin injection amount of the patient, and ensures the health of the patient.

(5) The invention adopts the mode that the needle tube is inserted into the subcutaneous part of the patient when in use and is pulled out of the body of the patient when not in use to carry out the needle implantation operation on the user, thereby avoiding the phenomenon that the body of the user is severely painful due to the long-term storage of the needle head in the body of the patient and effectively reducing the possibility of the occurrence of complications caused by the long-term storage of the needle head in the body of the patient.

In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a first perspective view of a preferred embodiment of the present invention;

FIG. 2 is a second perspective view of the preferred embodiment of the present invention

FIG. 3 is a front view of the preferred embodiment of the present invention with the housing removed

FIG. 4 is a schematic diagram of the syringe control device of the preferred embodiment of the present invention.

The reference numbers illustrate:

a first shell 11, a second shell 12, a liquid storage component 20, an electromagnetic driving component 30 and an applying component 13

A needle tube control device 40, a control main board component 50, an energy component 60, a liquid storage cylinder 21, an execution component 22,

A needle tube 41, a rubber tube 42, a mounting rack 43, an elastic component 44, a slide block component 45,

Ramp block assembly 46, block 461, screw 441, herringbone arm 442, torsion spring 443,

a first link 4421, a second link 4422, a first slider 451, a second slider 452, a first slider,

Positioning portion 421, blocking hole 454, spring ejector 453, mounting case 31, bracket 32,

The buckle 33, the pawl 221, the ratchet wheel 222, the ratchet wheel sleeve 223, the sealing body 422,

A flexible wiring board 70.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to fig. 1 and 2, a preferred embodiment of the present invention provides a detachable patch type insulin pump, which comprises a housing, wherein a cavity is formed in the housing to accommodate and mount various components, an injection assembly and a control main board assembly 50 are formed in the housing, and when in use, the injection assembly is controlled by the control main board assembly 50 to inject liquid medicine into a patient; the control main board assembly 50 is installed in the housing in a detachable connection manner; the injection subassembly includes stock solution subassembly 20, needle tubing assembly and pump liquid subassembly, stock solution subassembly 20 is used for storing and providing the liquid medicine for patient's injection, pump liquid subassembly is connected to stock solution subassembly 20's one end, the needle tubing assembly is connected to stock solution subassembly 20's the other end, the during operation pump liquid subassembly provides the driving force and injects the patient health through injection subassembly with the liquid medicine in the stock solution subassembly 20, still can be equipped with in the shell to pump liquid subassembly, the energy component 60 that control mainboard subassembly 50 provided the energy.

Referring to fig. 1, the housing includes a first housing 11 and a second housing 12, and the first housing 11 and the second housing 12 can jointly form a cavity for accommodating and mounting components.

Referring to fig. 1 and 2, the detachable connection mode between the control main board assembly and the housing can be screw connection, because the control main board assembly 50 is screw connection, the process of mounting and dismounting the device is simple, and the most expensive control main board assembly 50 can be dismounted for reuse after the disposable assembly is used, compared with the prior art, the reuse mode of the device greatly reduces the use cost of the equipment, reduces the medical expense of patients, improves the universality of the insulin pump, is more economic and environmentally friendly, and avoids the waste of resources.

The mode of dismantling the connection between control mainboard subassembly and the shell also can be for the plug connection, the plug connection is preferred to be equipped with a plurality of column archs in first shell, be equipped with a plurality of can with the protruding complex card section of thick bamboo of column simultaneously in the second shell (also can make the protruding whole settings of column in the second shell or partial column protruding setting in first shell, partial column protruding setting is in the second shell), the column arch can be inserted and carry out sealing connection in the card section of thick bamboo, the mode of adopting the plug connection can make the outside of shell perfectly integrative, there is not the hole, the difficult shell begins cracked phenomenon from the hole, simultaneously because the shell surface does not have any hole because of connected mode causes, further guaranteed the good leakproofness of shell to its interior spare part, good waterproof dustproof effect has been played.

Under the circumstances that the mainboard subassembly of control adopted foretell connection mode of dismantling, can set up waterproof component in the seam crossing of first casing 11 and second casing 12, and both can make the rubber ring rigid coupling in one of them side of first casing 11 or second casing 12, also can make the rubber ring divide into two sets of settings respectively at the kneck of first casing 11 or second casing 12, one of them is a set of draw-in groove waterproof component that the surface set up the recess, another a set of protruding waterproof component for can inserting in the recess, thereby it is complete to seal the seam of first casing 11 and second casing 12, further improve the waterproof performance of this device.

The control mainboard assembly 50 can be connected with the APP through Bluetooth or a wireless network, the operation control of the patient on the invention is facilitated through the operation of the APP, and meanwhile, the control mainboard assembly can also be controlled through a control panel on the shell; and the shell can be internally provided with components such as a flexible circuit board 70 which can be communicated with the control mainboard assembly 50, the energy source assembly 60 and the pumping assembly, so that the normal operation of the circuit system of the device is ensured.

Referring to fig. 1 and 2, the joint of the first shell 11 and the second shell 12 can be provided with a waterproof assembly to achieve a good waterproof effect, and the waterproof assembly can be a waterproof rubber ring, a sealing ring, a waterproof adhesive tape or a waterproof film, so that the patient does not need to frequently take off and wear when the body of the patient needs to be in contact with water in daily life, and great convenience is provided for the patient to use.

Referring to fig. 2, one side of the housing, which is to be attached to the body of a patient, is provided with an application part 13, the application part 13 can be arranged in a sheet shape to increase the application area, the application part 13 and the housing are provided with pinholes which are aligned with each other and are communicated, so that a needle head on the needle tube 41 can penetrate through the pinholes to inject medicine to the patient, the application mode replaces the use of a long catheter, and the phenomena that the catheter rubs against the body of the user when the long catheter is used, the long catheter is possibly hung on other objects, and the like, so that the user feels uncomfortable are avoided.

One end of the pinhole is provided with a sealing body 422, the sealing body 422 has the waterproof and dustproof effects on the pinhole, and the sealing body 422 can be made of materials such as silica gel or rubber; can be equipped with sealed bush between needle tubing 41 and the last syringe needle for seal the clearance between needle tubing 41 and the syringe needle, thereby cooperation seal 422 plays dual water-proof effects to the waterproof of pinhole, and the sweat infiltration that also can effectual prevention and cure patient's health produced is favorable to guaranteeing insulin pump's normal use.

Referring to fig. 3, the liquid storage assembly 20 includes a liquid storage cylinder 21 for containing a liquid medicine and a piston (not shown) fitted in the liquid storage cylinder 21, and the piston can push the liquid medicine in the liquid storage cylinder 21 out into the needle tube assembly when moving in the liquid storage cylinder.

Referring to fig. 1 and 3, the pumping assembly includes an electromagnetic driving assembly 30 and an actuating assembly 22, one end of the actuating assembly 22 is connected to the electromagnetic driving assembly 30, and the other end of the actuating assembly 22 is connected to a piston in the liquid storage cylinder 21, and in an operating state, the electromagnetic driving assembly 30 provides power for the actuating assembly 22 so that the end of the actuating assembly 22 connected to the piston pushes the piston to inject the liquid medicine into the patient through the needle tube assembly for treatment. Optionally, in another embodiment, the pumping assembly includes a memory alloy driving assembly and an executing assembly 22, one end of the executing assembly 22 is connected to the memory alloy driving assembly, the other end of the executing assembly 22 is connected to a piston in the liquid storage cylinder 21, and in the operating state, the memory alloy driving assembly provides power for the executing assembly 22 so that the end of the executing assembly 22 connected to the piston pushes the piston to inject the liquid medicine into the patient through the needle tube assembly for treatment. It should be understood that the memory alloy driving assembly deforms or recovers the memory alloy through temperature change to provide the driving power, and the specific structure of the memory alloy driving assembly is well known to those skilled in the art and will not be described in detail herein.

Referring to fig. 1 and 3, the electromagnetic driving assembly 30 includes a mounting box 31 and an electromagnetic coil assembly, the mounting box 31 is used for accommodating the electromagnetic coil assembly, the electromagnetic coil assembly includes an electromagnetic coil, a magnet and a bracket, the magnet includes two opposite magnets respectively disposed at two ends of the mounting box, the electromagnetic coil is fixed in the mounting box 31, the bracket is disposed at the top of the electromagnetic coil, a buckle 33 is disposed on the bracket 32, the buckle 33 is used for connecting one end of the actuating assembly 22, when the electromagnetic coil is powered on, the actuating assembly 22 is provided with a driving force through the bracket 32 and the buckle 33 (the magnetic field moves together with a conductor, this action is called "electromagnetic driving", when the magnet rotates, the N pole of the magnet is disposed at the radius Oa of the metal disc at a certain time, according to lenz's law, an eddy current as shown in the figure will be generated on the disc at this time, as a result, an induced current flowing from a to O is formed at the radius, the induced current is in the rotating magnetic field and is subjected to the action of the magnetic field, the force generates a moment for driving the metal disc to rotate in the rotating direction of the magnetic field, at the moment, the moment generated by the force of the induced current generated at the S pole of the magnet also drives the metal disc to rotate in the rotating direction of the magnetic field, and as a result, the metal disc rotates in the rotating direction of the magnetic field, but if the rotating speed of the disc reaches the same rotating speed of the magnetic field, the relative speed of the disc and the magnetic field is zero, the induced current cannot be generated, and at the moment, the electromagnetic driving action disappears, so that the rotating speed of the metal disc is always smaller than that of the magnet or the magnetic field under the electromagnetic driving action, or the rotating speeds of the disc and the magnet or the magnetic field are always asynchronous motor, and the induction motor (asynchronous motor) is manufactured according to the principle), and then make executive component 22 pass through the piston and promote the liquid medicine, this kind of electromagnetic drive's mode is for adopting expensive motor drive not only effectual use cost of having saved among the prior art, the whole miniaturization of this device of also being convenient for simultaneously, because electromagnetic drive's insulin pump is small, be convenient for hide, it can avoid the different eyesight of normal crowd to be difficult to discover, can supply the position that the patient selected to inject more after the miniaturization of insulin pump volume simultaneously, for example position such as belly and four limbs, and this kind of insulin pump cost is lower, make sick crowd can afford corresponding price, consequently make the insulin pump not only can use in type 1 diabetes crowd, and can enlarge type 2 diabetes and gestational diabetes crowd, have higher universality.

Referring to fig. 3, the executing component 22 includes a limiting device, a ratchet-pawl mechanism, a screw rod and a threaded sleeve, as shown in fig. 3, the housing is further provided with a limiting device, a pawl 221 on the ratchet-pawl mechanism is installed in cooperation with the limiting device, the displacement of the pawl is controlled by the limiting device, meanwhile, the limiting device limits that the pawl 221 can only reciprocate and translate along the tangential direction of the ratchet wheel 222, the housing is internally provided with a threaded sleeve, the threaded sleeve is internally connected with the screw rod in a matching manner, the screw rod is connected with a piston in the liquid storage cylinder 21 through a liquid medicine push rod, one side of the liquid medicine push rod can be provided with a displacement sensor for monitoring the displacement of the push rod, so as to monitor the output quantity of the liquid medicine and ensure the high reliability of the whole system, the screw rod can drive the piston to move in the liquid storage cylinder when rotating so as to inject the liquid medicine into the patient, the roller is rotatably arranged in the housing, one end of the screw rod is connected with the roller, the other end of the screw rod is connected with the piston, the screw rod can be driven to rotate through the rotation of the roller to provide a driving force for the piston, the ratchet wheel and pawl mechanism comprises a pawl 221, a ratchet wheel 222, a ratchet wheel sleeve 223 and the roller, the ratchet wheel sleeve 223 is sleeved on the outer side of the roller, and preferably, the ratchet wheel sleeves 223 are sleeved on two end portions of the roller respectively; the outside of the roller may also be fitted with one ratchet sleeve 223 or with more ratchet sleeves 223, e.g. three, four, etc.; ratchet wheel 222 is installed on the outer side of the ratchet wheel sleeve, a pawl 221 is arranged on the outer side of the ratchet wheel 222, a first end of the pawl 221 is connected with a buckle 33, the electromagnetic driving assembly 20 can drive the pawl 221 to reciprocate along the tangential direction of the ratchet wheel through a support and the buckle 33 when in operation, the other end of the pawl 221 corresponds to a plurality of ratchet wheels 222 and is in a double-claw or multi-claw shape, so that the pawl 221 is meshed with the corresponding ratchet wheels 222 respectively, the transmission process is more stable and the transmission amount is more accurate when the pawl is meshed with the ratchet wheels, the ratchet wheels can drive a screw rod to rotate quantitatively through a rolling shaft, the liquid medicine injection amount of a patient is accurately controlled, and meanwhile, due to the unidirectional transmission mechanism of the ratchet wheels and the pawl, the screw rod can only perform unidirectional transmission, and the liquid medicine can be pushed out through a control piston.

Referring to fig. 3 and 4, the needle tube assembly comprises a needle tube 41, a rubber tube 42 and a needle tube control device 40 for driving the implantation and extraction of a needle head in the needle tube assembly, the needle head of the needle tube 41 is preferably a stainless steel needle head to reduce possible bacterial infection, the needle tube 41 is connected with the liquid storage assembly 20 through a hose, and the liquid is supplied to the needle tube by the liquid storage assembly 20; the rubber tube 42 is sleeved outside the needle tube 41, the needle tube 41 and the rubber tube 42 can move relatively, when the injection of a patient is needed, the needle tube control device 40 controls the needle head of the needle tube 41 to extend out of the rubber tube 42, after the injection is completed, the needle tube control device 40 controls the needle head on the needle tube 41 to be retracted into the rubber tube 42 again, and the pain of the patient caused by the fact that the needle head exists in the body for a long time is reduced.

Referring to fig. 4, the syringe control apparatus 40 includes a mounting frame 43, a slider assembly 45, a bevel stopper assembly 46, and an elastic assembly 44, wherein the mounting frame 43 is disposed inside the housing, the elastic assembly 44 includes a screw 441, a screw 441 is mounted at one end of the mounting frame 43, a torsion spring 443 is sleeved outside the screw 441, a herringbone arm 442 is rotatably connected to an outer side of the screw 441, two arms of the herringbone arm 442 are rotatably connected, rotation of the torsion spring drives the herringbone arm 442 to extend or retract, the herringbone arm 442 includes a first link 4421 rotatably connected to an outer side of the screw 441, a second link 4422 rotatably connected to the first link 4421, an outer end of the second link 4422 is rotatably connected to a sliding portion of the slider assembly 45, the slider assembly 45 includes a first slider 451, a second slider 452 and a sliding track, an outer end of the second link 4422 is rotatably connected to the first slider 451, the second link 4422 drives the first slider 451 to slide on the sliding track of the slider assembly, a bevel stop block assembly 46 penetrates through the shell, a stop block 461 is connected to one end, located inside the shell, of the bevel stop block assembly 46, the stop block 461 is located between the first sliding block and the second sliding block, and the stop block is divided into two using states, namely when the bevel stop block assembly 46 is pulled outwards, the stop block 461 is pulled away from between the first sliding block 451 and the second sliding block 452, and at the moment, the torsion spring is rotated to reset, and in the resetting process of the torsion spring, the herringbone arm is driven to extend so as to push the first sliding block 451 and the second sliding block 452 to move on the sliding rail; when the inclined surface stopper assembly 46 is pressed down, the stopper 461 pushes the first slider 451 to reset, so that the contact position of the stopper 461 and the first slider 451 is inclined surface fit, which is convenient for resetting the first slider 451, when the stopper pushes the first slider to completely reset, the stopper 461 is positioned between the first slider 451 and the second slider 452 to separate the two, at this time, the torsion spring is twisted, and the torsion spring has a tendency of pushing the first slider 451 to move in a resetting manner, and stores power for pushing the first slider 451 next time; the first slider 451 is provided with a first conduction groove, the second slider 452 is provided with a second conduction groove, the second conduction groove is used for accommodating the rubber tube 42, the second slider 452 is provided with an adaptation cavity, the rubber tube 42 is provided with a positioning part 421 protruding out of the rubber tube 42, the positioning part 421 is adapted in the adaptation cavity, and the needle tube 41 penetrates into the rubber tube 42 through the positioning part 421.

Preferably, after the injection is completed, the rubber tube 42 is retained in a reserved tube on the skin of the patient, the needle tube 41 is retracted into the housing, so as to avoid the problem of complications caused by the needle remaining in the patient, specifically, a blocking hole 454 is formed in one end of the second slider 452, which is away from the first slider 451, a spring ejector pin 453 is correspondingly arranged on the first housing 11, after the second slider 452 slides to a certain position, the spring ejector pin 453 is ejected and inserted into the blocking hole 454, the second slider 452 is fixed, so that the rubber tube 42 is not driven to retract, the first slider 451 is reset and retracted under the contraction action of the herringbone arm, the needle tube 41 is finally retracted into the rubber tube 42, and when the next injection is performed, the needle tube 41 is pushed out by pushing the first slider 451 through the operation of the button 46.

When detecting that the patient needs to inject insulin, the inclined plane stop block assembly is controlled to remove the limitation on the first sliding block, the needle tube assembly is inserted into the subcutaneous part of the patient, then the electromagnetic driving assembly 20 is started to provide power for the execution assembly 22, so that the liquid medicine in the liquid storage assembly 20 is injected into the body of the patient through the needle tube assembly, after injection is completed, the inclined plane stop block assembly pushes the first sliding block to reset, the first sliding block drives the needle tube to be pulled out of the body of the patient, and the next injection is convenient.

The energy component 60 can be a button cell or other energy supply member which is convenient for miniaturization, so that the design key points of the invention are more fit, the integral miniaturization design of the invention is convenient, and meanwhile, the energy component 60 can also be an external power supply, so that the space occupied by the energy component is saved.

It is worth mentioning that the position close to the end of the rubber tube 42 is sleeved with a sealing body 422, the sealing body 422 is preferably sealing colloid, the sealing body 422 is positioned at the inner end of the pinhole opened on the shell, the sealing body 422 is positioned at the joint of the rubber tube 42 and the applying part 13, and the arrangement of the sealing body 422 can prevent liquid from flowing into the shell, so that a good waterproof effect is achieved.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A detachable insulin pump is characterized in that the pump comprises

The injection device comprises an injection assembly and a control main board assembly (50), wherein the control main board assembly (50) is used for controlling the injection assembly to inject liquid medicine into a patient;

the control main board assembly (50) is detachably arranged.

2. The detachable patch type insulin pump of claim 1, further comprising a housing for accommodating said injection assembly and said control main board assembly (50), said housing comprising a first housing (11) and a second housing (12), said first housing (11) and said second housing (12) being detachably connected, and a waterproof assembly is disposed at the connection between said first housing (11) and said second housing (12).

3. The insulin pump of claim 2, wherein the housing is provided with an application member (13), the application member (13) and the housing are provided with a through needle hole, the needle hole is used for a needle tube in the injection assembly to pass through, and one end of the needle hole is provided with a sealing body (422).

4. The detachable patch type insulin pump of claim 3, wherein the injection assembly comprises a liquid storage assembly, a needle tube assembly and a liquid pumping assembly, one end of the liquid storage assembly is connected with the liquid pumping assembly, the other end of the liquid storage assembly is connected with the needle tube assembly, and the liquid pumping assembly is used for injecting the liquid medicine in the liquid storage assembly into the body of the patient through the needle tube assembly.

5. The detachable application type insulin pump of claim 4, wherein the pump liquid assembly comprises an electromagnetic driving assembly (30) and an executing assembly (22), the electromagnetic driving assembly (30) is used for driving the executing assembly (22) in an electromagnetic driving manner to control the injecting assembly to inject the patient.

6. The detachable application type insulin pump of claim 5, the executing component (22) comprises a limiting device, a ratchet wheel and pawl mechanism, a screw rod and a thread sleeve, the ratchet wheel and pawl mechanism comprises a ratchet wheel (222) and a pawl (221), the limiting device is connected with the pawl (221) and drives the pawl (221) to reciprocate and translate along the tangential direction of the ratchet wheel (222), the first end of the pawl (221) is connected with the buckle (33), the ratchet wheel (222) is connected with the screw rod, the screw rod is connected with the liquid pushing part in the injection assembly, by driving the electromagnetic driving component (30) to enable the executing component (22) to drive the pawl to make reciprocating translation, the pawl (221) drives the ratchet wheel (222) to rotate in a single direction so as to drive the screw to rotate in a stepping mode to push the liquid pushing portion in the injection assembly to further perform liquid medicine injection.

7. The removable application type insulin pump according to claim 4, wherein said needle tube assembly comprises a needle tube (41) and a needle tube control device (40), said needle tube (41) is connected to said reservoir assembly (20), said needle tube control device (40) is used for driving said needle tube (41) to be implanted into or removed from the patient.

8. The removable application type insulin pump of claim 7, wherein said needle tube control device (40) comprises a slider assembly (45), an elastic assembly (44) and a bevel block assembly (46), the sliding part of said slider assembly (45) is connected with the needle tube (41); the inclined plane block assembly (46) forces the slide block on the slide block assembly (45) to reset through the pre-pressing elastic force applied by the elastic assembly (44) and drives the needle tube (41) to be implanted into the patient; the inclined plane block component (46) overcomes the pre-pressing elasticity of the elastic component (44) through the cooperation of the inclined plane and pushes the sliding part on the sliding block component (45) to drive the needle tube (41) to be implanted into the body of a patient.

9. The insulin pump of claim 8, wherein the slider assembly (45) comprises a first slider (451), a second slider (452) and a slide rail, the first slider (451) is connected with the needle tube (41), the first slider (451) is provided with a first conduction groove, the second slider (452) is provided with a second conduction groove, the needle tube (41) is sleeved with a rubber tube (42) and the needle tube (41) can be relatively displaced, the second conduction groove is used for accommodating the rubber tube (42), the second slider (452) is provided with an adaptation cavity, the rubber tube (42) is provided with a protruding positioning part (421), the positioning part (421) is adapted to the adaptation cavity, the needle tube (41) penetrates into the rubber tube (42) through the positioning part (421), one end, far away from the first sliding block (451), of the second sliding block (452) is provided with a blocking hole (454), one side of the second sliding block (452) is provided with a spring ejector pin (453), and the inclined plane block assembly (46) is located between the first sliding block (451) and the second sliding block (452).

10. The removable application type insulin pump according to the claim, wherein the sealing body (422) is sleeved outside one end of the rubber tube (42) close to the application part (13), and the sealing body (422) is located at the joint of the rubber tube (42) and the application part (13).