CN219001462U - Detachable insulin pump - Google Patents

Abstract

The utility model discloses a detachable insulin pump, wherein a bottom plate, an injection assembly and an execution assembly are of an integral structure, a driving assembly, a control main board assembly and a shell are of an integral structure, the shell is firstly connected with the bottom plate, the bottom plate is attached to the body surface of a patient, then the driving assembly is controlled to work through the control main board assembly so as to drive the execution assembly to work, and then the injection assembly is driven to inject liquid medicine.

Description

Detachable insulin pump

Technical Field

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

Background

The insulin pump can simulate the physiological insulin secretion mode so as to regulate the patient according to the characteristics of physiological insulin secretion at different times, 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 executing part and an injecting part, wherein the driving part is controlled by the control part to work so as to drive the executing part to work and further control the injecting part to inject insulin into a patient, and the injecting part needs to be disposed of in a proper treatment mode according to the relevant regulations of medical equipment after the injecting part finishes the injection operation.

Disclosure of Invention

The utility model 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 for multiple times of use.

According to one aspect of the utility model, a detachable insulin pump is provided, which comprises a bottom plate, an injection assembly, an execution assembly, a shell, a driving assembly and a control main board assembly, wherein the bottom plate is used for being attached to the body surface of a patient, the injection assembly is arranged on the bottom plate and used for injecting liquid medicine into the patient, the execution assembly is arranged on the bottom plate, the movable end of the execution assembly is connected with the injection assembly and used for driving the injection assembly to inject the liquid medicine, the shell is detachably connected with the bottom plate, the driving assembly is arranged on the shell and corresponds 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 the control main board assembly is arranged on the shell and is electrically connected with the driving assembly and used for controlling the driving assembly to work.

As a further improvement of the above technical scheme:

further, a waterproof component is arranged at the joint of the shell and the bottom plate.

Further, the housing comprises a first protection piece covered on the driving assembly; and/or the shell comprises a second protection piece covered on the control main board 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.

Further, 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 or pulled out of the patient to be received in the rubber tube.

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

Further, the driving assembly comprises an electromagnet which is arranged corresponding to the swinging piece and used for electromagnetically driving the swinging piece to swing and a power supply piece which 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 are opposite in direction, and the power supply piece is used for changing the magnetism and the direction of the two magnetic poles according to preset frequency so as to drive the swinging piece to swing back and forth in an extension area between the two magnetic poles.

Further, the support shell comprises a connecting column which is 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 two magnetic poles and keeps a preset distance with the electromagnet and is used for swinging reciprocally along with the change of magnetism of the two magnetic poles, and a pushing part which is used for pushing the ratchet mechanism to rotate along with the reciprocal swing of the magnetic attraction part.

Further, a plurality of limit protrusions extending along the width direction of the support shell are arranged on the side wall of the support shell, the limit protrusions are distributed at intervals along the length direction of the support shell to form limit grooves, the swinging piece further comprises limit holes which are formed along the thickness direction of the swinging piece and correspond to the limit grooves, and limit blocks which are distributed in the limit holes, and the limit ends of the limit blocks extend into the limit grooves and are used for being abutted with the limit protrusions in order to limit the swinging range of the swinging piece in the swinging process of the swinging piece.

Further, the end part of the support shell, which is far away from the magnetic attraction part, is provided with a plurality of limit posts which are distributed along the height direction of the support shell, the limit posts are distributed at intervals along the length direction of the support shell to form a limit gap, and the end part of the swinging piece, which is far away from the magnetic attraction part, is provided with a limit part which extends along the length direction of the swinging piece to form and stretches into the limit gap and is used for being abutted with the limit posts to limit the swinging range of the swinging piece in the swinging process of the swinging piece.

Further, the ratchet mechanism comprises a rotating shaft which is rotatably arranged on the support shell and fixedly sleeved outside the screw rod sleeve, a ratchet wheel fixedly sleeved outside the rotating shaft and a plurality of ratchets which are sequentially arranged along the circumferential direction of the ratchet wheel.

The utility model has the following beneficial effects:

the detachable insulin pump comprises a base plate, an injection assembly, an execution assembly, a driving assembly, a control main board assembly and a shell, wherein the base plate, the injection assembly and the execution assembly are of an integral structure, the driving assembly, the control main board assembly and the shell are firstly connected with the base plate, the base plate is attached to the body surface of a patient, then the control main board assembly controls the driving assembly to work so as to drive the execution assembly to work, the injection assembly is driven to inject liquid medicine, the shell can be directly detached after the injection of the liquid medicine is completed, the relatively expensive driving assembly and the control main board assembly can be reused, and the use cost of the patient is greatly reduced.

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

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 is a schematic perspective view of a removable insulin pump according to a preferred embodiment of the present utility model;

FIG. 2 is a schematic view of the structure of a detachable insulin pump according to a preferred embodiment of the present utility model;

FIG. 3 is a schematic view of the construction of the actuating assembly in the removable insulin pump of the preferred embodiment of the present utility model;

FIG. 4 is an exploded view of the actuating components of the removable insulin pump of the preferred embodiment of the present utility model;

FIG. 5 is a schematic view of a portion of the construction of an actuator assembly in a removable insulin pump according to a preferred embodiment of the present utility model;

fig. 6 is a schematic view of the structure of the driving assembly in the detachable insulin pump according to the preferred embodiment of the present utility model.

Legend description:

1. a bottom plate; 2. an injection assembly; 3. an execution component; 31. a support housing; 311. a connecting column; 312. a limit protrusion; 313. a limit column; 32. a swinging member; 321. a magnetic attraction part; 322. a pushing part; 323. a limiting block; 324. a limit 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 main board assembly.

Detailed Description

Embodiments of the utility model are described in detail below with reference to the attached drawing figures, but the utility model can be practiced in a number of different ways, as defined and covered below.

FIG. 1 is a schematic perspective view of a removable insulin pump according to a preferred embodiment of the present utility model; FIG. 2 is a schematic view of the structure of a detachable insulin pump according to a preferred embodiment of the present utility model; FIG. 3 is a schematic view of the construction of the actuating assembly in the removable insulin pump of the preferred embodiment of the present utility model; FIG. 4 is an exploded view of the actuating components of the removable insulin pump of the preferred embodiment of the present utility model; FIG. 5 is a schematic view of a portion of the construction of an actuator assembly in a removable insulin pump according to a preferred embodiment of the present utility model; fig. 6 is a schematic view of the structure of the driving assembly in the detachable insulin pump according to the preferred embodiment of the present utility model.

As shown in fig. 1 and 2, the detachable insulin pump of this embodiment includes a base plate 1 for applying to a body surface of a patient, an injection component 2 disposed on the base plate 1 for injecting a liquid medicine into the patient, an execution component 3 disposed on the base plate 1 and having a movable end connected with the injection component 2 for driving the injection component 2 to inject the liquid medicine, a housing 4 detachably connected with the base plate 1, a driving component 5 disposed on the housing 4 and corresponding to the execution component 3 for driving the execution component 3 to operate so as to drive the injection component 2 to inject the liquid medicine, and a control main board component 6 disposed on the housing 4 and electrically connected with the driving component 5 for controlling the operation of the driving component 5. Specifically, the detachable insulin pump provided by the utility model has the advantages that the bottom plate 1, the injection assembly 2 and the execution assembly 3 are of an integral structure, the driving assembly 5, the control main board assembly 6 and the shell 4 are of an integral structure, the shell 4 is firstly connected with the bottom plate 1, the bottom plate 1 is attached to the body surface of a patient, then the control main board assembly 6 controls the driving assembly 5 to work so as to drive the execution assembly 3 to work, further the injection assembly 2 is driven to inject liquid medicine, after the injection of the liquid medicine is completed, the shell 4 can be directly detached, the relatively expensive driving assembly 5 and the control main board assembly 6 can be recycled, and the use cost of the patient is greatly reduced. It should be appreciated that the manner in which the housing 4, drive assembly 5 and control motherboard assembly 6 are reused reduces the cost of use of the insulin pump, reduces the medical expense for the patient, increases the universality of the insulin pump, is economical and environmentally friendly, and avoids waste of resources, as compared to the prior art. Optionally, the mode of detachable connection between shell 4 and bottom plate 1 can be plug connection, plug connection is preferable to be equipped with a plurality of block portion on bottom plate 1, be equipped with a plurality of and block portion grafting complex buckle portion simultaneously on shell 4, the block portion is one or more in columnar bulge and the card section of thick bamboo, buckle portion is one or more in columnar bulge and the card section of thick bamboo, columnar bulge can insert the card section of thick bamboo and carry out sealing connection, the mode of plug connection can make the outside of shell 4 unified, there is not the hole, the difficult phenomenon that shell 4 begins to break from the hole because the shell 4 surface does not have any hole because of the connected mode causes simultaneously, the good leakproofness of shell 4 to its interior spare part has further been guaranteed, good waterproof dustproof effect has been played.

In this embodiment, a waterproof component is provided at the junction of the housing 4 and the base plate 1. Specifically, play good water-proof effects through waterproof component, waterproof component can be waterproof rubber ring, sealing ring, waterproof sticky tape or one of the waterproof membrane etc. to patient also need not frequent taking off and wearing when the health needs the contact water in daily life, for patient's use provides very big facility.

In this embodiment, the housing 4 includes a first protection member covering the driving assembly 5; and/or the housing 4 includes a second protector over the control motherboard assembly 6. Specifically, the driving assembly 5 is protected by the first protection piece, so that the driving assembly 5 is prevented from being knocked and worn in the process of disassembling and assembling the shell 4 and the bottom plate 1, and the driving assembly 5 is reused; the control main board assembly 6 is protected by the second protection piece to prevent the control main board assembly 6 from being knocked and worn in the process of dismounting the shell 4 and the bottom plate 1, so that the driving assembly 5 can be repeatedly utilized. Optionally, the first protection member is one of a protection film and a protection shell. Optionally, the second protection member is one of a protection film and a protection shell. Optionally, the first protection member and the second protection member are an integrally formed protection film or protection shell. Optionally, in another embodiment, a partition board for separating the driving component 5 and the executing component 3 is arranged on the casing 4, and the driving component 5 and the executing component 3 are separated by the partition board, so that the driving component 5 is protected, and the driving component 5 is recycled. Optionally, the first protection piece and the second protection piece are assembled by concave-convex matching.

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

In this embodiment, the needle tube assembly includes a needle tube in communication with the reservoir assembly, a tube disposed over the needle tube, and a needle tube control assembly for driving the needle tube to extend out of the tube for implantation into a patient or to be withdrawn from the patient for retraction into the tube. Specifically, the needle tube is communicated with the liquid storage assembly through a hose, the liquid storage assembly supplies liquid to the needle tube, the needle tube and the rubber tube can move relatively, and when a patient needs to be injected, the needle tube control device controls the needle head extending out of the needle tube to extend out of the rubber tube so as to perform liquid medicine injection; after the injection is finished, the needle tube control device controls the needle head of the needle tube to be pulled out from the body of the patient to be received in the rubber tube, so that the pain of the patient caused by the long-term storage of the needle head in the body 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 assembly, an inclined surface stop block assembly and an elastic assembly, wherein the mounting frame is arranged in the shell 4, the elastic assembly comprises a screw, one end of the mounting frame is provided with the screw, the outside of the screw is sleeved with a torsion spring, the outside of the screw is rotationally connected with a herringbone arm, two arms of the herringbone arm are rotationally connected, the rotation of the torsion spring can drive the herringbone arm to extend or retract, the herringbone arm comprises a first connecting rod rotationally connected with the outside of the screw, a second connecting rod rotationally connected with the first connecting rod, the outer end of the second connecting rod is rotationally connected with a sliding part on the sliding block assembly, the sliding assembly comprises a first sliding block, a second sliding block and a sliding rail, the outer end of the second connecting rod is rotationally connected with the first sliding block, the second sliding block can drive the first sliding block to slide on the sliding rail of the sliding block assembly, the inclined surface stop block assembly penetrates through the shell 4, one end of the inclined surface stop block assembly, and the stop block is located between the first sliding block and the second sliding block, and the stop block is in two use states, when the inclined surface stop block assembly is pulled outwards, the sliding block is separated from the first sliding block and the second sliding block and the sliding block is rotationally moved on the sliding rail in the reset process; when the inclined surface 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 surface fit, the first sliding block is convenient to reset, when the stop block pushes the first sliding block to reset completely, the stop block is positioned between the first sliding block and the second sliding block to separate the first sliding block from the second sliding block, at the moment, the torsion spring is twisted, and the torsion spring has a tendency of restoring to push the first sliding block to move, so that the first sliding block is pushed for the next time; the first sliding block is provided with a first conduction groove, the second sliding block is provided with a second conduction groove, the second conduction groove is used for accommodating a rubber tube, the second sliding block is provided with an adaptation cavity, the rubber tube is provided with a positioning part protruding out of the rubber tube, the positioning part is adapted to the adaptation cavity, and the needle tube penetrates into the rubber tube through the positioning part. Optionally, after the injection is completed, the rubber tube is reserved in a reserved tube on the skin of a patient, the needle tube is retracted into the shell 4, so that the problem of complications caused by the needle remaining in the patient is avoided, a blocking hole is formed in one end of a specific second sliding block, which is far away from the first sliding block, a spring thimble is correspondingly arranged on the first shell, after the second sliding block slides to a certain position, the spring thimble pops up and is inserted into the blocking hole, and the second sliding block is fixed, so that the rubber tube cannot be driven to retract, the first sliding block is reset to retract under the contraction action of the lambdoidal 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 movement of the first sliding block. When detecting that the patient needs to inject insulin, the control inclined plane dog subassembly removes the restriction to first slider, and the needle tubing subassembly inserts under the patient skin, then starts drive assembly 5 and provide power for executing assembly 3 for the liquid medicine in the stock solution subassembly is through needle tubing subassembly injection patient's health, after the injection is accomplished, and inclined plane dog subassembly promotes first slider and resets, and first slider drives the needle tubing and extracts from the patient, and the planting needle of the next time of being convenient for uses.

In this embodiment, the detachable insulin pump further comprises an energy source assembly disposed on the housing and connected to the control main board assembly 6. Specifically, the control main board assembly 6 is provided with energy through the energy assembly to ensure the normal operation of the control main board assembly 6. Optionally, the energy component can be an energy supply part such as a button battery which is convenient for miniaturization, so that the design key point of the utility model is more attached, the whole miniaturization design of the utility model 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 to 5, in the present embodiment, the executing assembly 3 includes a support housing 31 fixedly disposed on the base plate 1, a swinging member 32 movably disposed on the support 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 support 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 screwed with the screw sleeve 34 and fixedly connected with the liquid storage assembly for extending along the axial direction of the screw sleeve 34 to push the liquid storage assembly for injecting liquid medicine along with the rotation of the screw sleeve 34. Specifically, the swing member 32, the ratchet mechanism 33, the screw rod sleeve 34 and the pushing screw rod 35 are stably supported through the support shell 31, so that the reliability of mutual movement among the swing member 32, the ratchet mechanism 33, the screw rod sleeve 34 and the pushing screw rod 35 is ensured, when the liquid medicine injection is carried out, the driving assembly 5 drives the swing member 32 to swing so as to drive the ratchet mechanism 33 to rotate forwards in a stepping manner, and then drive the screw rod sleeve 34 to rotate forwards in a stepping manner, so that the pushing screw rod 35 is driven to stretch out of the pushing piston in a stepping manner, the liquid medicine is injected into a patient, and after the liquid medicine injection is completed. It should be appreciated that the push screw 35 is detachably connected to the injection assembly 2, and that when the ratchet mechanism 33 rotates the screw sleeve 34, the push screw 35 can only move axially to complete the injection operation of the injection assembly 2, but cannot rotate with the rotation of the screw sleeve 34, i.e. the push 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 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 includes two magnetic poles disposed at intervals and directed opposite to each other, and the power supply member 52 is configured to change the magnetism and the direction of the two magnetic poles at a predetermined frequency to drive the oscillating member 32 to oscillate reciprocally in an extension region between the two magnetic poles. Specifically, the current is transmitted to the electromagnet 51 through the power supply member 52, so that the electromagnet 51 generates two magnetic poles with opposite directions, and then one repulsive swing member 32 is attracted, so that the swing member 32 swings in a direction close to one of the magnetic poles under the action of magnetic force, at this time, the power supply member 52 changes the directions of the two magnetic poles by changing the positive and negative poles of the current output, so that the swing member 32 swings in a direction close to the other magnetic pole under the action of magnetic force, based on the above working principle, the power supply member 52 changes the directions of the two magnetic poles according to a preset frequency, so that the swing member 32 swings reciprocally along with the change of the directions of the two magnetic poles in an extending area between the two magnetic poles, and further drives the pushing screw rod 35 to extend to push, so as to drive the injection assembly 2 to inject the liquid medicine, and the electromagnetic driving is adopted to enable the power output to be more stable, direct and reliable, thereby being beneficial to accurately controlling the insulin injection amount of the patient, guaranteeing the physical health of the patient, and meanwhile, the energy conversion efficiency of the generated electromagnetic magnetic energy conversion efficiency is high relative to the energy conversion efficiency, the power consumption is low, the service time is long, and the patient is convenient for the patient to use for a long time under the same power condition. It should be appreciated that the predetermined frequency determines the frequency of the reciprocating oscillation of the oscillating member 32, and thus the injection rate of the liquid medicine, which can be adaptively adjusted according to the use requirements of the patient. Optionally, the preset frequency is 5 ms/time, that is, the current flow direction of the power supply 52 is changed every 5 ms, so as to change the directions of the two magnetic poles of the electromagnet 51, thereby realizing rapid injection of the liquid medicine. Optionally, the electromagnet 51 is arranged in a U shape, and two magnetic poles are respectively arranged at two ends of the opening end of the electromagnet 51. It will be appreciated that when electromagnet 51 is stationary, the north-pointing pole is called north pole and the south-pointing pole is called south pole, and that power supply 52 changes the orientation of the poles, meaning that the north pole changes to south pole and the south pole changes to north pole. It should be appreciated that when the power supply 52 supplies current to the electromagnet 51, the electromagnet 51 is magnetically provided and generates a magnetic force that attracts and repels the oscillating piece 32, thereby driving the push screw 35 to extend out for push; when the power supply member 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 the injection power is provided through an electromagnetic driving mode, the power output is more stable, direct and reliable, the insulin injection quantity of a patient is controlled accurately, the physical health of the patient is guaranteed, the driving assembly 5 and the executing assembly 3 are not in direct contact, the disassembly and assembly are convenient, and the driving assembly 5 and the control main board assembly 6 are convenient to recycle. Alternatively, in another embodiment, the driving component 5 is driven by using a memory alloy, and the memory alloy is deformed or restored by the change of temperature, so as to drive the swinging member 32 to swing. It should be appreciated that the specific structure of the memory alloy actuation 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 connection post 311 arranged along the height direction of the supporting housing 31, the swinging member 32 is rotatably sleeved on the connection post 311, and the swinging member 32 includes a magnetic attraction portion 321 arranged in an extension region between two magnetic poles and keeping a predetermined distance from the electromagnet 51 for reciprocating 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 reciprocating swing of the magnetic attraction portion 321. Specifically, the electromagnet 51 drives the magnetic attraction part 321 to swing repeatedly, so as to drive the pushing part 322 to swing repeatedly, and then push the ratchet mechanism 33, so that the stepping rotation of the ratchet mechanism 33 is realized, and the pushing screw rod 35 is driven to extend out of the pushing injection assembly 2, and the injection operation is completed. Alternatively, the magnetic attraction portion 321 is made of ferromagnetic material. Alternatively, the magnetic attraction portion 321 is an electromagnet. It should be understood that, since the magnetic attraction portion 321 maintains a preset distance from the electromagnet 51, the magnetic attraction portion 321 of the swinging member 32 is not hindered and interfered by the magnetic pole in the swinging process, and the swinging range is large, so that the structure covered by the swinging portion is small, the design is simplified and light, the self gravity of the swinging portion can be ignored for the driving power of the driving member, and the influence on the driving member is small along with the different postures or the posture change of the insulin pump in use. It should be understood that the greater the current supplied by the power supply 52, the greater the magnetic force of the two poles on the electromagnet 51 and the faster the swing speed of the magnetic attraction portion 321. It should be understood that the extension area between the two poles refers to the area where the middle area of the two poles extends towards the actuator 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, and the plurality of limiting protrusions 312 are disposed at intervals along the length direction of the supporting housing 31 to form a limiting groove, the swinging member 32 further includes a limiting hole disposed along the thickness direction of the swinging member 32 and corresponding to the limiting groove, and a limiting block 323 disposed in the limiting hole, wherein a limiting end of the limiting block 323 extends into the limiting groove and is used for abutting against the limiting protrusions 312 during the swinging of the swinging member 32 to limit the swinging range of the swinging member 32. Specifically, during the swinging process of the swinging member 32, the limiting block 323 swings synchronously, and the limiting end of the limiting block 323 stretches into the limiting groove to be limited by the abutting of the limiting boss 312, so that the swinging range of the swinging member 32 can be limited correspondingly, the swinging range of the swinging member 32 is prevented from being too large, the abutting portion 322 is separated from the abutting area of the ratchet, and further the blocking caused by interference of the ratchet is possibly caused, and the stability and reliability of the movement of the magnetic attraction member are ensured. Optionally, the limiting groove is disposed along the length direction of the supporting housing 31, and the length direction of the supporting housing 31 is the same as the swing direction of the magnetic attraction portion 321, so that the limiting block 323 is slidably disposed in the limiting groove along the swing direction, and the swing range of the swing member 32 is properly increased by sliding the limiting block 323 in the limiting groove, so that the swing range of the swing member 32 is prevented from being too small, and the pushing process of the pushing portion 322 is prevented from being too small, so that the rotation speed of the ratchet 332 is too slow, and the injection speed of the injection assembly 2 is further affected. It should be understood that the preset distance can be adaptively adjusted according to the production requirement of the product, and the swing of the magnetic attraction portion 321 can be realized.

As shown in fig. 4, in the present embodiment, the end of the supporting housing 31 away from the magnetic attraction portion 321 is provided with a plurality of limiting posts 313 arranged along the height direction of the supporting housing 31, the plurality of limiting posts 313 are arranged at intervals along the length direction of the supporting housing 31 to form a limiting gap, and the end of the swinging member 32 away from the magnetic attraction portion 321 is provided with a limiting portion 324 extending along the length direction of the swinging member 32 and extending into the limiting gap for abutting against the limiting posts 313 during the swinging process of the swinging member 32 to limit the swinging range of the swinging member 32. Specifically, during the swinging process of the swinging member 32, the limiting portion 324 swings synchronously, and the limiting portion 324 stretches into the limiting gap to be limited by the abutting of the limiting post 313, so that the swinging range of the swinging member 32 can be limited correspondingly, the swinging range of the swinging member 32 is prevented from being too large, the abutting portion 322 is prevented from being separated from the abutting area of the ratchet, and further the swinging member 32 is prevented from being blocked by interference of the ratchet, so that the movement stability and reliability of the swinging member 32 are ensured.

As shown in fig. 4, in the present embodiment, the swinging member 32 further includes an elastic member sleeved on the connecting post 311 for pressing the swinging member 32. Specifically, the elastic member presses the swinging member 32, so that the pressing portion 322 on the swinging member 32 can be always at the same level as a ratchet on the ratchet 332, and further can always press a ratchet to move stepwise along the tangential direction of the ratchet 332, thereby realizing the stepwise rotation of the ratchet 332. Optionally, the elastic 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 support 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 disposed along the circumferential direction of the ratchet 332. Specifically, the two pushing parts 322 are respectively arranged at two opposite sides of the magnetic part 321 on the magnetic part, and in the process of reciprocating swing of the magnetic part 321, the two pushing parts 322 sequentially and reciprocally push the ratchet teeth on the two ratchet wheels 332, so that the rotation speed of the ratchet wheels 332 is greatly improved. It should be understood that when the magnetic attraction portion 321 moves in a direction approaching one of the magnetic poles, the pushing portion 322 approaching the magnetic pole pushes the corresponding ratchet teeth on the ratchet 332, so as to rotate the ratchet 332; when the magnetic attraction portion 321 moves in the direction close to the other magnetic pole, the pushing portion 322 close to the other magnetic pole pushes the corresponding ratchet teeth on the ratchet 332, so that the ratchet 332 rotates, and as the two ratchet gears 332 synchronously rotate through the rotating shaft 331, that is, one ratchet gear 332 rotates, the other ratchet gear 332 correspondingly synchronously rotates, and the magnetic attraction portion 321 swings back and forth once, the ratchet gears 332 rotate twice, and the rotating speed of the ratchet gears 332 is greatly improved.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. The detachable insulin pump is characterized by comprising a bottom plate (1) which is used for being attached to the body surface of a patient, an injection component (2) which is arranged on the bottom plate (1) and used for injecting liquid medicine into the body of the patient, an execution component (3) which is arranged on the bottom plate (1) and is connected with the injection component (2) at the movable end and used for driving the injection component (2) to inject the liquid medicine, a shell (4) which is detachably connected with the bottom plate (1), a driving component (5) which is arranged on the shell (4) and is correspondingly arranged with the execution component (3) and used for driving the execution component (3) to work so as to drive the injection component (2) to inject the liquid medicine, and a control main board component (6) which is arranged on the shell (4) and is electrically connected with the driving component (5) and used for controlling the driving component (5) to work.

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

3. The detachable insulin pump according to claim 1, characterized in that the housing (4) comprises a first protection piece covering the drive assembly (5); and/or

The shell (4) comprises a second protection piece covered on the control main board assembly (6).

4. The detachable insulin pump according to claim 1, characterized in that the injection assembly (2) comprises a liquid storage assembly connected with the execution assembly (3) for storing the liquid medicine and a needle tube assembly communicated with the liquid storage assembly for injecting the liquid medicine.

5. The removable insulin pump of claim 4, wherein the syringe assembly comprises a syringe in communication with the reservoir assembly, a tubing sleeved outside the syringe, and a syringe control assembly for driving the syringe out of the tubing for implantation into a patient or out of the patient for retraction into the tubing.

6. The detachable insulin pump according to claim 5, wherein the actuating assembly (3) comprises a supporting shell (31) fixedly arranged on the bottom plate (1), a swinging member (32) movably arranged on the supporting shell (31) and 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 corresponding to the swinging member (32) and used for rotating along with the swinging of the swinging member (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 pushing the liquid storage assembly to inject liquid medicine along the axial extension of the screw rod sleeve (34) along with the rotation of the screw rod sleeve (34).

7. The detachable insulin pump according to claim 6, wherein the driving assembly (5) comprises an electromagnet (51) which is arranged corresponding to the swinging member (32) and is used for electromagnetically driving the swinging member (32) to swing, and a power supply member (52) which is electrically connected with the electromagnet (51) and the control main board assembly (6) respectively, the electromagnet (51) comprises two magnetic poles which are arranged at intervals and are opposite in direction, and the power supply member (52) is used for changing the magnetism and the direction of the two magnetic poles according to a preset frequency so as to drive the swinging member (32) to swing back and forth in an extension area between the two magnetic poles.

8. The detachable insulin pump according to claim 7, wherein the support housing (31) includes a connection post (311) disposed along a height direction of the support housing (31), the swing member (32) is rotatably sleeved on the connection post (311), the swing member (32) includes a magnetic attraction portion (321) disposed in an extension region between the two magnetic poles and maintaining a predetermined distance from the electromagnet (51) for reciprocating with a change in magnetism of the two magnetic poles, and a pushing portion (322) for pushing the ratchet mechanism (33) to rotate with the reciprocating swing of the magnetic attraction portion (321).

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

10. The detachable insulin pump according to claim 8, wherein the end part of the support housing (31) far from the magnetic attraction part (321) is provided with a plurality of limit posts (313) distributed along the height direction of the support housing (31), the limit posts (313) are distributed at intervals along the length direction of the support housing (31) to form limit gaps, the end part of the swinging member (32) far from the magnetic attraction part (321) is provided with limit parts (324) which are formed by extending along the length direction of the swinging member (32) and extend into the limit gaps and are in abutting contact with the limit posts (313) to limit the swinging range of the swinging member (32) in the swinging process of the swinging member (32).

Images