CN115054772A

CN115054772A - Detachable insulin pump

Info

Publication number: CN115054772A
Application number: CN202210834318.4A
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: WO2024011690A1

Abstract

The invention discloses a detachable insulin pump, a bottom plate, an injection assembly and an execution assembly are of an integral structure, a driving assembly, a control mainboard assembly and a shell are of an integral structure, firstly, the shell is connected with the bottom plate, the bottom plate is pasted on the body surface of a patient, then the driving assembly is controlled to work by the control mainboard assembly to drive the execution assembly to work, and further the injection assembly is driven to inject liquid medicine, after the liquid medicine injection is finished, the shell can be directly detached, the driving assembly and the control mainboard assembly which are relatively expensive can be recycled, the use cost of the patient is greatly reduced, the scheme can detachably connect the shell and the bottom plate, the parts which are expensive and convenient to disassemble and assemble are arranged on the shell, the parts which must be abandoned or troublesome to disassemble and assemble are arranged on the bottom plate, and the recycling of the driving assembly and the control mainboard assembly is realized by disassembling and assembling the shell, greatly reduces the use cost of the patient for multiple use, has strong practicability, and is suitable for wide popularization and application.

Description

Detachable insulin pump

Technical Field

The invention relates to the technical field of medical equipment, in particular to a detachable insulin pump.

Background

The insulin pump can regulate the patient according to the characteristics of physiological secretion of insulin at different time by simulating the physiological insulin secretion mode, 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 generally provided with a control part, a driving part, an execution part and an injection part, wherein the control part controls the driving part to work so as to drive the execution part to work, and further controls the injection part to inject insulin into a patient body, according to the relevant regulations of medical equipment, after the injection part finishes injection operation, the injection part needs to be discarded in a proper treatment mode, however, in order to work stably and reliably in the using process, the insulin pump is designed in an integral structure, so that the insulin pump is troublesome to disassemble and assemble, the existing insulin pump is equivalent to a disposable product and can only be discarded after being used, the using cost of the patient is greatly increased, one insulin pump at least needs forty-fifty thousand, more or even hundred thousand, the cost is mainly embodied on the control part and the execution part, and the cost is high after being used for many times, is not accepted by type 2 diabetics and gestational diabetics.

Disclosure of Invention

The invention provides a detachable insulin pump, which solves the technical problems that the existing insulin pump can only be discarded after being used by a patient and is expensive after being used for multiple times.

According to one aspect of the invention, the detachable insulin pump comprises a bottom plate which is attached to the body surface of a patient, an injection assembly which is arranged on the bottom plate and used for injecting liquid medicine into the body of the patient, an execution assembly which is arranged on the bottom plate and used for driving the injection assembly to inject the liquid medicine, a shell which is detachably connected with the bottom plate, a driving assembly which is arranged on the shell and corresponding to the execution assembly and used for driving the execution assembly to work so as to drive the injection assembly to inject the liquid medicine, and a control main board assembly which is arranged on the shell and electrically connected with the driving assembly and used for controlling the driving assembly to work.

As a further improvement of the above technical solution:

furthermore, a waterproof assembly is arranged at the joint of the shell and the bottom plate.

Further, the housing comprises a first protection piece covering the driving assembly; and/or the housing includes a second protector covering the control motherboard assembly.

Further, the injection assembly comprises a liquid storage assembly connected with the execution assembly and used for storing liquid medicine and a needle tube assembly communicated with the liquid storage assembly and used for injecting the liquid medicine.

Furthermore, the needle tube assembly comprises a needle tube communicated with the liquid storage assembly, a rubber tube sleeved outside the needle tube and a needle tube control assembly used for driving the needle tube to extend out of the rubber tube to be implanted into a patient body or to be pulled out of the patient body to be collected into the rubber tube.

Furthermore, the executing assembly comprises a supporting shell fixedly arranged on the bottom plate, a swinging piece movably arranged on the supporting shell and correspondingly arranged with the driving assembly and used for swinging along with the driving of the driving assembly, a ratchet mechanism rotatably arranged on the supporting shell and correspondingly arranged with the swinging piece and used for rotating along with the swinging of the swinging piece, a screw rod sleeve fixedly arranged in the ratchet mechanism and used for synchronously rotating along with the rotation of the ratchet mechanism, and a pushing screw rod which is in threaded connection with the screw rod sleeve and fixedly connected with the liquid storage assembly and used for axially extending along the screw rod sleeve along with the rotation of the screw rod sleeve to push the liquid storage assembly to inject liquid medicine.

Furthermore, the driving assembly comprises an electromagnet and a power supply piece, the electromagnet is arranged corresponding to the swinging piece and used for electromagnetically driving the swinging piece to swing, the power supply piece is electrically connected with the electromagnet and the control main board assembly respectively, the electromagnet comprises two magnetic poles which are arranged at intervals and opposite in pointing direction, and the power supply piece is used for changing the magnetism and the pointing direction of the two magnetic poles according to a preset frequency so as to drive the swinging piece to swing back and forth in an extending area between the two magnetic poles.

Furthermore, the support shell comprises a connecting column arranged along the height direction of the support shell, the swinging piece is rotatably sleeved on the connecting column, and the swinging piece comprises a magnetic attraction part which is arranged in an extending area between the two magnetic poles and keeps a preset distance with the electromagnet and is used for swinging back and forth along with the change of the magnetism of the two magnetic poles and a pushing part which is used for pushing the ratchet mechanism to rotate along with the reciprocating swing of the magnetic attraction part.

Further, be equipped with on the lateral wall of support housing along a plurality of spacing archs that the width direction of support housing extended the formation, a plurality of spacing archs are laid along the length direction interval of support housing and are enclosed and close and form the spacing groove, the swing piece still includes along the thickness direction of swing piece set up and correspond the spacing hole of laying with the spacing groove and lay the stopper in the spacing hole, the spacing end of stopper stretches into the spacing inslot and is used for in the swing range of swing piece swing in-process with spacing protruding butt in order to restrict the swing piece.

Further, the tip that the portion was inhaled to the magnetism is kept away from to the support casing is equipped with a plurality of spacing posts of laying along the direction of height of support casing, and a plurality of spacing posts are laid along the length direction interval of support casing and are enclosed and close and form spacing clearance, and the tip of keeping away from the portion of inhaling magnetism on the swinging piece is equipped with and extends into the spacing portion that is used for in the spacing clearance with the swing range of restriction swinging piece butt with spacing post in the swinging piece swing in-process along the length direction extension formation of swinging piece.

Further, ratchet mechanism is including rotationally laying on supporting housing and fixed cover locate the axis of rotation outside the lead screw cover, fixed cover locate the ratchet outside the axis of rotation and along the circumference of ratchet a plurality of ratchets that arrange in proper order.

The invention has the following beneficial effects:

the invention relates to a detachable insulin pump, a bottom plate, an injection assembly and an execution assembly are of an integral structure, a driving assembly, a control mainboard assembly and a shell are of an integral structure, firstly, the shell is connected with the bottom plate, the bottom plate is pasted on the body surface of a patient, then the driving assembly is controlled to work by the control mainboard assembly so as to drive the execution assembly to work, and further drive the injection assembly to inject liquid medicine, after the liquid medicine injection is finished, the shell can be directly disassembled, the driving assembly and the control mainboard assembly which are relatively expensive can be recycled, the use cost of the patient is greatly reduced, the scheme can detachably connect the shell and the bottom plate, the parts which are expensive and convenient to disassemble are arranged on the shell, the parts which must be abandoned or troublesome to disassemble are arranged on the bottom plate, and the driving assembly and the control mainboard assembly are recycled by disassembling the shell, greatly reduces the use cost of the patient for multiple use, has strong practicability, and is suitable for wide popularization and application.

In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail below with reference to the drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:

FIG. 1 is a schematic perspective view of a detachable insulin pump in accordance with a preferred embodiment of the present invention;

FIG. 2 is a schematic diagram of the construction of a detachable insulin pump in accordance with a preferred embodiment of the present invention;

FIG. 3 is a schematic diagram of the structure of the actuating assembly of the detachable insulin pump in accordance with the preferred embodiment of the present invention;

FIG. 4 is an exploded schematic view of the actuator assembly of the detachable insulin pump in accordance with the preferred embodiment of the present invention;

FIG. 5 is a schematic view of a portion of the structure of an actuating assembly in the detachable insulin pump in accordance with the preferred embodiment of the present invention;

fig. 6 is a schematic view of the structure of the drive assembly in the detachable insulin pump in accordance with the preferred embodiment of the present invention.

Illustration of the drawings:

1. a base plate; 2. an injection assembly; 3. an execution component; 31. a support housing; 311. connecting columns; 312. a limiting bulge; 313. a limiting post; 32. a swinging member; 321. a magnetic part; 322. a pushing part; 323. a limiting block; 324. a limiting part; 33. a ratchet mechanism; 331. a rotating shaft; 332. a ratchet wheel; 34. a screw rod sleeve; 35. pushing the screw rod; 4. a housing; 5. a drive assembly; 51. an electromagnet; 52. a power supply member; 6. and controlling the mainboard assembly.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the accompanying drawings, but the invention can be embodied in many different forms, which are defined and covered by the following description.

FIG. 1 is a schematic perspective view of a detachable insulin pump in accordance with a preferred embodiment of the present invention; FIG. 2 is a schematic diagram of the construction of a detachable insulin pump according to the preferred embodiment of the present invention; FIG. 3 is a schematic diagram of the structure of the actuating assembly of the detachable insulin pump in accordance with the preferred embodiment of the present invention; FIG. 4 is an exploded schematic view of the actuator assembly of the detachable insulin pump in accordance with the preferred embodiment of the present invention; FIG. 5 is a schematic view of a portion of the structure of an actuating assembly in the detachable insulin pump in accordance with the preferred embodiment of the present invention; fig. 6 is a schematic view of the structure of the drive assembly in the detachable insulin pump in accordance with the preferred embodiment of the present invention.

As shown in fig. 1 and fig. 2, the detachable insulin pump of this embodiment includes a bottom plate 1 for being attached to the body surface of a patient, an injection assembly 2 disposed on the bottom plate 1 for injecting a liquid medicine into the body of the patient, an execution assembly 3 disposed on the bottom plate 1 and having a movable end connected to the injection assembly 2 for driving the injection assembly 2 to inject the liquid medicine, a housing 4 detachably connected to the bottom plate 1, a driving assembly 5 disposed on the housing 4 and corresponding to the execution assembly 3 for driving the execution assembly 3 to operate so as to drive the injection assembly 2 to inject the liquid medicine, and a control main board assembly 6 disposed on the housing 4 and electrically connected to the driving assembly 5 for controlling the operation of the driving assembly 5. Specifically, the detachable insulin pump of the invention, the bottom plate 1, the injection component 2 and the execution component 3 are of an integral structure, the driving component 5, the control mainboard component 6 and the shell 4 are of an integral structure, firstly, the shell 4 is connected with the bottom plate 1, the bottom plate 1 is pasted on the body surface of a patient, then the driving component 5 is controlled to work by the control mainboard component 6 to drive the execution component 3 to work, and further drive the injection component 2 to inject the liquid medicine, after the liquid medicine injection is completed, the shell 4 can be directly detached, the driving component 5 and the control mainboard component 6 which are relatively expensive can be recycled, the use cost of the patient is greatly reduced, the scheme detachably connects the shell 4 and the bottom plate 1, the parts which are expensive and convenient to disassemble are arranged on the shell 4, the parts which must be abandoned or troublesome to disassemble are arranged on the bottom plate 1, and the shell 4 is disassembled, the driving assembly 5 and the control main board assembly 6 are repeatedly utilized, the use cost of repeated use of a patient is greatly reduced, the practicability is high, and the device is suitable for wide popularization and application. It should be understood that, compared with the prior art, the way of recycling the housing 4, the driving assembly 5 and the control main board assembly 6 reduces the use cost of the insulin pump, reduces the medical expense of the patient, improves the universality of the insulin pump, is economical and environmentally friendly, and avoids the waste of resources. Optionally, the detachable connection between the housing 4 and the bottom plate 1 may be a plug connection, the plug connection is preferably provided with a plurality of clamping portions on the bottom plate 1, meanwhile, the housing 4 is provided with a plurality of clamping portions which are matched with the clamping portions in an inserting manner, each clamping portion is a columnar protrusion and one or more of clamping cylinders, each clamping portion is one or more of the columnar protrusion and the clamping cylinder, the columnar protrusion can be inserted into the clamping cylinder to be hermetically connected, the outer side of the housing 4 can be integrated in a perfectly integrated manner by adopting the plug connection, no hole exists, the phenomenon that the housing 4 starts to break from the hole is not easy to occur, meanwhile, the surface of the housing 4 does not have any hole caused by the connection manner, good sealing performance of the housing 4 to internal parts is further ensured, and a good waterproof and dustproof effect is achieved.

In this embodiment, a waterproof assembly is disposed at the joint of the housing 4 and the bottom plate 1. Particularly, play good water-proof effects through waterproof assembly, waterproof assembly can be for in waterproof rubber ring, sealing ring, waterproof sticky tape or the waterproof membrane etc. to also need not frequent taking off and wearing when the patient body needs the contact water in daily life, provide very big facility for patient's use.

In this embodiment, the housing 4 includes a first protector covering the driving unit 5; and/or the housing 4 includes a second protective member covering the control board assembly 6. Specifically, the driving assembly 5 is protected by the first protection piece, so that the driving assembly 5 is prevented from colliding and wearing in the process of assembling and disassembling the shell 4 and the bottom plate 1, and the driving assembly 5 is repeatedly utilized; through second protection piece protection control mainboard subassembly 6 to prevent that control mainboard subassembly 6 from taking place the wearing and tearing that collide with at

shell

4 and 1 dismouting in-process of bottom plate, realize drive assembly 5's reuse. Optionally, the first protector is one of a protective film and a protective shell. Optionally, the second protector is one of a protective film and a protective case. Optionally, the first protector and the second protector are integrally formed protective films or protective cases. Optionally, in another embodiment, a partition plate for separating the driving assembly 5 and the actuating assembly 3 is disposed on the housing 4, and the driving assembly 5 and the actuating assembly 3 are separated by the partition plate, so as to protect the driving assembly 5 and realize recycling of the driving assembly 5. Optionally, the first protector and the second protector are assembled by a male-female fit.

In this embodiment, the injection assembly 2 includes a liquid storage assembly connected to the actuator assembly 3 for storing a liquid medicine and a needle assembly communicated with the liquid storage assembly for injecting the liquid medicine. Specifically, the liquid medicine is stored through the liquid storage assembly, then the liquid medicine is injected through the needle tube assembly, and the executing assembly 3 conveys the liquid medicine stored in the liquid storage assembly into the needle tube assembly for liquid medicine injection. Optionally, the liquid storage assembly comprises a liquid storage cylinder for containing liquid medicine and a piston installed in the liquid storage cylinder in a matching mode, the liquid medicine in the piston can be pushed out into the needle tube assembly when the piston moves in the liquid storage cylinder, and the piston is connected with the execution assembly 3.

In this embodiment, the needle tube assembly includes a needle tube communicated with the liquid storage assembly, a rubber tube sleeved outside the needle tube, and a needle tube control assembly for driving the needle tube to extend out of the rubber tube to be implanted into the patient or to be pulled out of the patient to be received in the rubber tube. Specifically, the needle tube is communicated with the liquid storage assembly through the hose, liquid is supplied to the needle tube by the liquid storage assembly, the needle tube and the rubber tube can move relatively, and when a patient needs to be injected, the needle tube control device controls a needle head extending out of the needle tube to extend out of the rubber tube so as to inject liquid medicine; after the injection is finished, the needle tube control device controls the needle head of the needle tube to be pulled out of the body of the patient to be collected into the rubber tube, so that the pain of the patient caused by the fact that the needle head is stored in the body for a long time is reduced. Optionally, the needle of the needle cannula is made of stainless steel to minimize the risk of bacterial infection. Optionally, the needle tube control device comprises a mounting frame, a sliding block component, an inclined plane block component and an elastic component, the mounting frame is arranged in the housing 4, the elastic component comprises a screw, one end of the mounting frame is provided with the screw, the outer side of the screw is sleeved with a torsion spring, the outer side of the screw is rotatably connected with a herringbone arm, the two arms of the herringbone arm are rotatably connected, the rotation of the torsion spring can drive the herringbone arm to extend or contract, the herringbone arm comprises a first connecting rod rotatably connected with the outer side of the screw and a second connecting rod rotatably connected with the first connecting rod, the outer end of the second connecting rod is rotatably connected with a sliding part on the sliding block component, the sliding component comprises a first sliding block, a second sliding block and a sliding rail, the outer end of the second connecting rod can drive the first sliding block to slide on the sliding rail of the sliding block component, the inclined plane block component penetrates through the housing 4, and one end of the inclined plane block component, which is positioned in the housing 4, is connected with the block, the check block is positioned between the first sliding block and the second sliding block and is divided into two using states, one is that when the inclined plane check block component is pulled outwards, the check block is pulled away from the space between the first sliding block and the second sliding block, and at the moment, the torsional spring rotates to reset and drives the inverted-V-shaped arm to extend in the resetting process so as to push the first sliding block and the second sliding block to move on the sliding rail; when the inclined plane stop block assembly is pressed down, the stop block pushes the first sliding block to reset, so that the contact position of the stop block and the first sliding block is in inclined plane fit, the first sliding block is convenient to reset, when the stop block pushes the first sliding block to completely reset, the stop block is positioned between the first sliding block and the second sliding block to separate the first sliding block and the second sliding block, at the moment, the torsion spring is twisted, and the torsion spring has the tendency of resetting to push the first sliding block to move, so that the force is accumulated for pushing the first sliding block next time; be equipped with first conduction groove on the first slider, be equipped with the second conduction groove on the second slider, the second conduction groove is used for holding the rubber tube, is equipped with the adaptation chamber on the second slider, is equipped with salient in the location portion of rubber tube on the rubber tube, and location portion adaptation is in the adaptation intracavity, and the needle tubing penetrates in the rubber tube through this location portion. Optionally, after the injection is completed, the rubber tube is retained in a reserved tube on the skin of the patient, the needle tube retracts into the housing 4, so as to avoid the problem of complications caused by the fact that the needle is retained in the body of the patient, a blocking hole is formed in one end, away from the first slider, of the second slider, a spring thimble is correspondingly arranged on the first housing, after the second slider slides to a certain position, the spring thimble is ejected and inserted into the blocking hole, the second slider is fixed, so that the rubber tube cannot be driven to retract, the first slider resets and retracts under the retraction effect of the herringbone arm, the needle tube is finally retracted into the rubber tube, and when the next injection is performed, the needle tube is pushed out by pushing the first slider to move through the operation of the button. When detecting that the patient needs to pour into insulin into, the restriction to first slider is removed to control inclined plane dog subassembly, and the needle tubing subassembly inserts the patient subcutaneously, then starts drive assembly 5 and provides power for execute subassembly 3 for the liquid medicine in the stock solution subassembly passes through the needle tubing subassembly and pours into the patient's health into, and after the injection was accomplished, inclined plane dog subassembly promoted first slider and resets, and first slider drives the needle tubing and extracts from the patient is internal, and the next implantation of being convenient for is used.

In this embodiment, the detachable insulin pump further comprises an energy component disposed on the housing and connected to the control main board component 6. Specifically, the control main board assembly 6 is powered by the power supply assembly to ensure the normal operation of the control main board assembly 6. Optionally, the energy component can be an energy supply piece which is convenient to miniaturize, such as a button cell and the like, 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 can also be an external power supply, so that the space occupied by the energy component is saved.

As shown in fig. 3-5, in the present embodiment, the actuating assembly 3 includes a supporting housing 31 fixedly disposed on the bottom plate 1, a swinging member 32 movably disposed on the supporting housing 31 and disposed corresponding to the driving assembly 5 for swinging along with the driving of the driving assembly 5, a ratchet mechanism 33 rotatably disposed on the supporting housing 31 and disposed corresponding to the swinging member 32 for rotating along with the swinging of the swinging member 32, a screw sleeve 34 fixedly disposed in the ratchet mechanism 33 for synchronously rotating along with the rotation of the ratchet mechanism 33, and a pushing screw 35 fixedly connected with the screw sleeve 34 and fixedly connected with the liquid storage assembly for extending out along the axial direction of the screw sleeve 34 along with the rotation of the screw sleeve 34 to push the liquid storage assembly for injecting the liquid medicine. Specifically, the support shell 31 is used for stably supporting the swinging piece 32, the ratchet mechanism 33, the screw rod sleeve 34 and the abutting and pushing screw rod 35 so as to ensure the reliability of mutual movement among the swinging piece 32, the ratchet mechanism 33, the screw rod sleeve 34 and the abutting and pushing screw rod 35, when liquid medicine injection is carried out, the driving assembly 5 drives the swinging piece 32 to swing so as to drive the ratchet mechanism 33 to rotate in a stepping forward direction and further drive the screw rod sleeve 34 to rotate in a stepping forward direction, so as to drive the abutting and pushing screw rod 35 to stretch out in a stepping manner and abut and push a piston, so that liquid medicine is injected into a patient, and after the liquid medicine injection is finished. It should be understood that the thrust screw 35 is detachably connected to the injection assembly 2, and when the ratchet mechanism 33 drives the screw sleeve 34 to rotate, the thrust screw 35 can only move axially to complete the injection operation of the injection assembly 2, but cannot rotate along with the rotation of the screw sleeve 34, i.e. the thrust screw 35 is circumferentially fixed.

As shown in fig. 6, in the present embodiment, the driving assembly 5 includes an electromagnet 51 disposed corresponding to the swinging member 32 and configured to electromagnetically drive the swinging member 32 to swing, and a power supply element 52 electrically connected to the electromagnet 51 and the control main board assembly 6, where the electromagnet 51 includes two magnetic poles disposed at intervals and having opposite directions, and the power supply element 52 is configured to change the magnetism and the direction of the two magnetic poles according to a preset frequency to drive the swinging member 32 to swing back and forth in an extending region between the two magnetic poles. Specifically, the current is transmitted to the electromagnet 51 through the power supply element 52, so that the electromagnet 51 generates two magnetic poles with magnetism and opposite directions, and further attracts and repels the oscillating element 32, so that the oscillating element 32 oscillates in a direction close to one of the magnetic poles under the action of the magnetic force, at this time, the power supply element 52 changes the directions of the two magnetic poles by changing the positive and negative poles of the current output, so that the oscillating element 32 oscillates in a direction close to the other magnetic pole under the action of the magnetic force, based on the above working principle, the directions of the two magnetic poles are changed by the power supply element 52 according to a preset frequency, so that the oscillating element 32 oscillates in a reciprocating manner in an extending area between the two magnetic poles along with the change of the directions of the two magnetic poles, and further drives the abutting screw rod 35 to extend and abut against, so as to drive the injection assembly 2 to inject the liquid medicine, the power output is more stable, direct and reliable by adopting electromagnetic driving, which is favorable for accurately controlling the injection amount of the insulin to the patient, the health of a patient is guaranteed, meanwhile, the electromagnetic energy conversion efficiency is high relative to the electrothermal energy conversion efficiency, the power consumption is low, the service life is long under the condition of the same electric power, and the patient can use the electromagnetic energy conversion device for a long time conveniently. It should be understood that the preset frequency determines the frequency of the reciprocating swing of the swing member 32, and thus the injection speed of the liquid medicine, and can be adaptively adjusted according to the use requirements of the patient. Alternatively, the preset frequency is 5 milliseconds/time, that is, the current flowing direction of the power supply 52 is changed every 5 milliseconds, so as to change the orientation of the two magnetic poles of the electromagnet 51, thereby realizing the rapid injection of the liquid medicine. Alternatively, the electromagnet 51 is disposed in a "U" shape, and two magnetic poles are disposed at two end portions of the opening end of the electromagnet 51. It should be understood that when the electromagnet 51 is in the rest state, the magnetic pole pointing north is called north, the magnetic pole pointing south is called south, and the power supply 52 changes the orientation of the magnetic pole, meaning changing north to south and south to north. It should be understood that when the power supply 52 supplies current to the electromagnet 51, the electromagnet 51 is magnetic and generates magnetic force that attracts and repels the swinging member 32, thereby driving the pushing screw 35 to extend and push; when the power supply 52 does not supply current to the electromagnet 51, the electromagnet 51 stops operating, and accordingly, the pushing screw 35 also fails to operate. It should be understood that, through electromagnetic drive's mode provides injection power, power take off is more stable, direct and reliable, is favorable to the accurate control to patient's insulin injection volume, guarantees patient's healthy, and drive assembly 5 and executive component 3 can not direct contact, easy dismounting is convenient for drive assembly 5 and the cyclic utilization of control mainboard subassembly 6. Alternatively, in another embodiment, the driving assembly 5 is driven by a memory alloy, and the memory alloy is deformed or restored by the temperature change, so as to drive the swinging member 32 to swing. It should be understood that the specific structure of the memory alloy driver is well known to those skilled in the art and will not be described in detail herein.

As shown in fig. 4, in the present embodiment, the supporting housing 31 includes a connecting column 311 disposed along the height direction of the supporting housing 31, the swinging member 32 is rotatably sleeved on the connecting column 311, and the swinging member 32 includes a magnetic attraction portion 321 disposed in the extending region between the two magnetic poles and keeping a predetermined distance from the electromagnet 51 for swinging back and forth along with the change of the magnetic properties of the two magnetic poles, and a pushing portion 322 for pushing against the rotation of the ratchet mechanism 33 along with the back and forth swinging of the magnetic attraction portion 321. Specifically, the electromagnet 51 drives the magnetic part 321 to swing repeatedly to drive the abutting part 322 to swing repeatedly, and further abut against the ratchet mechanism 33, so as to realize the step-by-step rotation of the ratchet mechanism 33, and further drive the abutting screw 35 to extend out of the abutting injection assembly 2, thereby completing the injection operation. Optionally, the magnetic part 321 is made of ferromagnetic material. Optionally, the magnetic attraction portion 321 is an electromagnet. It should be understood that, since the magnetic attraction portion 321 and the electromagnet 51 maintain a preset distance, the magnetic attraction portion 321 of the oscillating member 32 will not be hindered and interfered by the magnetic pole during the oscillating process, the oscillating range is large, so that the oscillating portion has a small covering structure, and the design is simplified and light-weighted, and the self gravity of the oscillating portion can be neglected and ignored for the driving power of the driving member, so that the influence on the driving member is small along with the different postures or posture changes of the insulin pump during use. It should be understood that the larger the current supplied by the power supply 52, the larger the magnetic force of the two magnetic poles on the electromagnet 51, and the faster the swing speed of the magnetic attraction part 321. It should be understood that the extension area between the two poles refers to the area in which the middle area of the two poles extends towards the actuating assembly 3.

As shown in fig. 4, in this embodiment, a plurality of limiting protrusions 312 extending along the width direction of the supporting housing 31 are disposed on the side wall of the supporting housing 31, the limiting protrusions 312 are disposed at intervals along the length direction of the supporting housing 31 to form limiting grooves, the swinging member 32 further includes limiting holes disposed along the thickness direction of the swinging member 32 and corresponding to the limiting grooves, and limiting blocks 323 disposed in the limiting holes, and the limiting ends of the limiting blocks 323 extend into the limiting grooves and are used for abutting against the limiting protrusions 312 to limit the swinging range of the swinging member 32 during the swinging process of the swinging member 32. Specifically, in the swinging process of the swinging member 32, the limiting block 323 swings synchronously, and the limiting end of the limiting block 323 extends into the limiting groove and is abutted and limited by the limiting protrusion 312, so that the swinging member can only swing in the limiting groove, the swinging range of the swinging member 32 is correspondingly limited, the situation that the pushing part 322 is separated from the pushing area of the ratchet due to the overlarge swinging range of the swinging member 32 is avoided, and the magnetic member is possibly blocked and interfered by the interference of the ratchet, and the movement stability and reliability of the magnetic member are ensured. Optionally, the limiting groove is disposed along the length direction of the supporting housing 31, the length direction of the supporting housing 31 is the same as the swinging direction of the magnetic attracting portion 321, so that the limiting block 323 is slidably disposed in the limiting groove along the swinging direction, and the limiting block 323 slides in the limiting groove to properly increase the swinging range of the swinging member 32, thereby avoiding that the swinging range of the swinging member 32 is too small and the pushing stroke of the pushing portion 322 is too small, so that the rotation speed of the ratchet 332 is too slow, and further the injection speed of the injection assembly 2 is affected. It should be understood that the preset distance may be adaptively adjusted according to the production requirement of the product, and the magnetic attraction portion 321 may swing.

As shown in fig. 4, in this embodiment, the end of the support housing 31 far away from the magnetic attraction portion 321 is provided with a plurality of limiting posts 313 arranged along the height direction of the support housing 31, the plurality of limiting posts 313 are arranged at intervals along the length direction of the support housing 31 to form a limiting gap, and the end of the oscillating element 32 far away from the magnetic attraction portion 321 is provided with a limiting portion 324 extending along the length direction of the oscillating element 32 and extending into the limiting gap, for abutting against the limiting posts 313 to limit the oscillating range of the oscillating element 32 in the oscillating process of the oscillating element 32. Specifically, in the swinging process of the swinging member 32, the limiting portion 324 swings synchronously, and since the limiting portion 324 extends into the limiting gap and is abutted and limited by the limiting post 313, the swinging member can only swing in the limiting gap, so that the swinging range of the swinging member 32 is correspondingly limited, and the situation that the abutting portion 322 is separated from the abutting area of the ratchet due to the overlarge swinging range of the swinging member 32, and is possibly interfered and jammed by the interference of the ratchet is avoided, and the stable and reliable movement of the swinging member 32 is ensured.

As shown in fig. 4, in the present embodiment, the swinging member 32 further includes an elastic member sleeved on the connecting column 311 for pressing the swinging member 32. Specifically, the elastic member presses against the swinging member 32, so that the pressing portion 322 on the swinging member 32 can always be in the same horizontal plane with a ratchet on the ratchet 332, and further can always press a ratchet to move step by step along the tangential direction of the ratchet 332, thereby realizing the step by step rotation of the ratchet 332. Optionally, the resilient member is a compression spring.

As shown in fig. 5, in the present embodiment, the ratchet mechanism 33 includes a rotating shaft 331 rotatably disposed on the supporting housing 31 and fixedly sleeved outside the screw sleeve 34, a ratchet 332 fixedly sleeved outside the rotating shaft 331, and a plurality of ratchet teeth sequentially arranged along the circumferential direction of the ratchet 332. Specifically, the two pushing portions 322 are respectively disposed on two opposite sides of the magnetic attracting portion 321 of the magnetic attracting member, and in the process of the reciprocating swing of the magnetic attracting portion 321, the two pushing portions 322 sequentially and reciprocally push the ratchets on the two ratchets 332, so as to greatly increase the rotation speed of the ratchets 332. It should be understood that when the magnetic part 321 moves toward a direction close to one of the magnetic poles, the pushing part 322 close to the magnetic pole pushes the corresponding ratchet teeth on the ratchet wheel 332, so as to rotate the ratchet wheel 332; when the magnetic part 321 moves towards the direction close to the other magnetic pole, the pushing part 322 close to the other magnetic pole pushes the corresponding ratchet on the ratchet 332, so that the ratchet 332 rotates, because the two ratchet 332 rotate synchronously through the rotating shaft 331, i.e. one ratchet 332 rotates, the other ratchet 332 also rotates synchronously, the magnetic part 321 swings back and forth once, so that the ratchet 332 rotates twice, and the rotating speed of the ratchet 332 is greatly improved.

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. The utility model provides a can dismantle insulin pump, a serial communication port, including bottom plate (1) that is used for applying in the patient body surface, lay injection unit (2) that are used for to the internal injection liquid medicine of patient on bottom plate (1), lay on bottom plate (1) and moving end and injection unit (2) be connected be used for drive injection unit (2) injection liquid medicine executive component (3), can dismantle shell (4) of being connected with bottom plate (1), lay on shell (4) and correspond drive executive component (3) that is used for that lay and drive executive component (3) work in order to drive injection unit (2) injection liquid medicine drive assembly (5) and lay on shell (4) and with drive component (5) electricity be connected be used for controlling main board subassembly (6) work.

2. The detachable insulin pump according to claim 1, characterized in that the connection of the housing (4) and the base plate (1) is provided with a water-proof assembly.

3. The detachable insulin pump according to claim 1, wherein the housing (4) comprises a first protector covering the drive assembly (5); and/or

The housing (4) includes a second protector covering the control main board assembly (6).

4. The detachable insulin pump of claim 1, wherein the injection assembly (2) comprises a reservoir assembly connected to the actuator assembly (3) for storing a liquid medicine and a needle assembly communicating with the reservoir assembly for injecting the liquid medicine.

5. The detachable insulin pump of claim 4, wherein the needle tube assembly comprises a needle tube communicating with the liquid storage assembly, a rubber tube sleeved outside the needle tube, and a needle tube control assembly for driving the needle tube to extend out of the rubber tube for implantation into the patient or to be pulled out of the patient for retraction into the rubber tube.

6. The detachable insulin pump of claim 5, the executing assembly (3) comprises a supporting shell (31) fixedly arranged on the bottom plate (1), a swinging piece (32) movably arranged on the supporting shell (31) and arranged corresponding to the driving assembly (5) and used for swinging along with the driving of the driving assembly (5), a ratchet mechanism (33) rotatably arranged on the supporting shell (31) and arranged corresponding to the swinging piece (32) and used for rotating along with the swinging of the swinging piece (32), a screw rod sleeve (34) fixedly arranged in the ratchet mechanism (33) and used for synchronously rotating along with the rotation of the ratchet mechanism (33), and a pushing screw rod (35) which is in threaded connection with the screw rod sleeve (34) and fixedly connected with the liquid storage assembly and used for extending out along the axial direction of the screw rod sleeve (34) to push the liquid storage assembly to inject liquid medicine along with the rotation of the screw rod sleeve (34).

7. The detachable insulin pump of claim 6, wherein the driving assembly (5) comprises an electromagnet (51) disposed corresponding to the oscillating member (32) for electromagnetically driving the oscillating member (32) to oscillate, and a power supply member (52) electrically connected to the electromagnet (51) and the control main board assembly (6), respectively, the electromagnet (51) comprises two poles disposed at intervals and pointing oppositely, and the power supply member (52) is configured to change the magnetic property and pointing direction of the two poles at a predetermined frequency to drive the oscillating member (32) to oscillate back and forth in the extending region between the two poles.

8. The detachable insulin pump of claim 7, wherein the supporting housing (31) comprises a connecting post (311) disposed along a height direction of the supporting housing (31), the swinging member (32) is rotatably sleeved on the connecting post (311), the swinging member (32) comprises a magnetic attraction portion (321) disposed in an extending region between the two magnetic poles and keeping a predetermined distance from the electromagnet (51) for swinging reciprocally with the change of magnetism of the two magnetic poles, and a pushing portion (322) for pushing the ratchet mechanism (33) to rotate with the reciprocal swinging of the magnetic attraction portion (321).

9. The detachable insulin pump of claim 8, wherein the side wall of the supporting housing (31) is provided with a plurality of limiting protrusions (312) extending along the width direction of the supporting housing (31), the limiting protrusions (312) are arranged along the length direction of the supporting housing (31) at intervals to form limiting grooves, the swinging member (32) further comprises limiting holes arranged along the thickness direction of the swinging member (32) and corresponding to the limiting grooves, and limiting blocks (323) arranged in the limiting holes, and the limiting ends of the limiting blocks (323) extend into the limiting grooves and are used for abutting against the limiting protrusions (312) to limit the swinging range of the swinging member (32) in the swinging process of the swinging member (32).

10. The detachable insulin pump of claim 8, wherein the end of the support housing (31) away from the magnetic part (321) is provided with a plurality of limiting posts (313) arranged along the height direction of the support housing (31), the plurality of limiting posts (313) are arranged along the length direction of the support housing (31) at intervals to form a limiting gap, and the end of the oscillating member (32) away from the magnetic part (321) is provided with a limiting part (324) which is formed by extending along the length direction of the oscillating member (32) and extends into the limiting gap and is used for abutting against the limiting posts (313) to limit the oscillating range of the oscillating member (32) in the oscillating process of the oscillating member (32).