CN219001463U - Disposable insulin pump - Google Patents

Abstract

The utility model discloses a disposable insulin pump which comprises an injection assembly for injecting liquid medicine into a patient, a pushing screw rod fixedly connected with the injection assembly, a pushing assembly detachably connected with the pushing screw rod and used for driving the pushing screw rod to axially move so as to push the injection assembly to inject the liquid medicine into the patient, an electromagnetic driving assembly which is correspondingly arranged with the pushing assembly and used for driving the pushing assembly to work in an electromagnetic driving mode so as to drive the pushing screw rod to axially extend, and a control assembly which is electrically connected with the electromagnetic driving assembly and used for controlling the electromagnetic driving assembly to work, wherein the pushing assembly, the electromagnetic driving assembly and the control assembly are of an integral structure. The scheme realizes the reutilization of the control assembly, the electromagnetic driving assembly and the pushing assembly, and provides driving power in a manner of using electromagnetic driving, so that the device is beneficial to miniaturization, convenient to use and carry, and meanwhile, the energy conversion efficiency of electricity-generated magnetism is high relative to the energy conversion efficiency of electricity-generated heat, and the power consumption is low.

Description

Disposable insulin pump

Technical Field

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

Background

The insulin pump simulates a physiological insulin secretion mode to regulate the patient according to the characteristics of physiological insulin secretion at different times, so that the insulin pump is used for treating the diabetes patient, is more humanized and accords with the treatment mode of the physiological insulin secretion mode.

The existing insulin pump is generally provided with a control part, a driving part, a pushing part and an injection part, wherein the driving part is controlled by the control part to work so as to provide pushing power for the pushing part and further control the injection part to inject insulin into a patient, and according to the relevant regulations of medical equipment, the injection part needs to be abandoned in a proper treatment mode after the injection part completes the injection operation, however, in order to work stably and reliably in the using process, the insulin pump is designed by adopting an integral structure, thus leading to troublesome disassembly and assembly of the insulin pump, and because the injection part is generally provided with a liquid storage tube for storing liquid medicine and a piston arranged in the liquid storage tube, the execution part pushes the piston to move by adopting a screw rod capable of rotating in a stepping way so as to realize the injection of the liquid medicine, the screw rod stretches out in the process of injecting the liquid medicine, but the screw rod is troublesome to shrink and reset after the injection of the liquid medicine is completed, the existing insulin pump is equivalent to a disposable product, and can only be discarded after being used, one insulin pump at least needs forty-five thousands, more or even hundreds of thousands, the cost is mainly reflected on a control part, a driving part and an executing part, the repeated use is high in price, the use cost of a patient is greatly increased, the long-time use is high in price, the insulin pump is not accepted by type 2 diabetics and gestational diabetics, and the driving part in most insulin pumps adopts parts such as a motor, an encoder, a reduction gearbox and a catheter, so that the insulin pump is large in size, few in injection parts can be selected, inconvenient to carry and bad in concealment, and the peripheral abnormal vision is easily suffered; if the driving part in the existing insulin pump adopts memory alloy driving, the temperature of the memory alloy is changed through electric heating to control the deformation of the memory alloy so as to realize driving, but the loss of converting electric energy into heat energy is large, and in order to avoid the deformation of the memory alloy at normal temperature, the memory alloy with higher deformation temperature is often required to be selected, so that the driving mode has large power consumption and high use cost.

Disclosure of Invention

The utility model provides a disposable insulin pump, which solves the technical problems that the insulin pump can only be discarded after being used by a patient, is expensive for multiple uses and has large volume or large power consumption.

According to one aspect of the utility model, there is provided a disposable insulin pump comprising an injection assembly for injecting a medical fluid into a patient, a push screw fixedly connected with the injection assembly, a push assembly detachably connected with the push screw for driving the push screw to move axially so as to push the injection assembly to inject the medical fluid into the patient, an electromagnetic driving assembly correspondingly arranged with the push assembly and used for driving the push assembly to work in an electromagnetic driving manner so as to drive the push screw to extend axially, and a control assembly electrically connected with the electromagnetic driving assembly and used for controlling the electromagnetic driving assembly to work, wherein the push assembly, the electromagnetic driving assembly and the control assembly are of an integral structure.

As a further improvement of the above technical scheme:

further, the disposable insulin pump comprises a first shell and a second shell which is detachably assembled and connected with the first shell along the axial direction of the pushing screw rod, the injection assembly is arranged in the first shell, and the pushing assembly, the electromagnetic driving assembly and the control assembly are arranged in the second shell.

Further, the pushing assembly comprises a mounting shell, a ratchet mechanism rotatably arranged on the mounting shell, a screw rod sleeve axially slidably arranged in the ratchet mechanism and sleeved outside the pushing screw rod, a locking mechanism fixedly arranged on the ratchet mechanism and used for fixing or loosening the screw rod sleeve, and a swinging member rotatably arranged on the mounting shell and correspondingly arranged with the ratchet mechanism, wherein the swinging member is correspondingly arranged with the electromagnetic driving assembly, and the screw rod sleeve is in threaded connection with the pushing screw rod.

Further, the electromagnetic driving assembly comprises an electromagnet which is arranged corresponding to the swinging piece and used for driving the swinging piece to swing and a power supply piece which is electrically connected with the electromagnet and the control 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 installation shell comprises a connecting column which is arranged along the height direction of the installation 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 in a stepping way along with the reciprocal swing of the magnetic attraction part.

Further, the end part of the installation 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 installation shell, the limit posts are distributed at intervals along the length direction of the installation shell and form limit gaps, 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 and stretches into the limit gaps 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 installation shell, a ratchet wheel which is fixedly sleeved outside the rotating shaft and a plurality of ratchets which are sequentially arranged along the circumferential direction of the ratchet wheel, and a sliding cavity which is in sliding connection with the screw rod sleeve is axially formed in the rotating shaft.

Further, the locking mechanism comprises a locking screw rod which is radially penetrated through the rotating shaft along the rotating shaft and used for extending into the sliding cavity to press the fixed screw rod sleeve, and the locking screw rod is in threaded connection with the rotating shaft.

Further, a fixing groove which is in plug-in fit with the locking screw rod is formed in the outer wall of the screw rod sleeve along the radial direction.

Further, the pushing assembly comprises a mounting shell, a ratchet mechanism rotatably arranged on the mounting shell, a screw rod sleeve fixedly arranged in the ratchet mechanism and sleeved outside the pushing screw rod, and a swinging piece rotatably arranged on the mounting shell and correspondingly arranged with the ratchet mechanism, wherein the swinging piece is correspondingly arranged with the electromagnetic driving assembly, and the screw rod sleeve comprises a threaded driving part which is in threaded connection with the pushing screw rod and is used for driving the pushing screw rod to axially move through a threaded structure, and a sliding part which is in sliding connection with the pushing screw rod and is used for sliding out of the screw rod sleeve.

The utility model has the following beneficial effects:

when the disposable insulin pump needs to inject liquid medicine into a patient, the electromagnetic driving assembly is controlled by the control assembly to work at first so as to drive the pushing assembly to work in an electromagnetic driving mode, and then the pushing screw rod extends out to push the injection assembly to inject the liquid medicine into the patient, so that the liquid medicine injection treatment of the patient is realized, after the liquid medicine injection is finished, the pushing screw rod and the pushing assembly are separated, the control assembly, the electromagnetic driving assembly, the pushing assembly and other relatively expensive parts can be detached together, the patient only needs to purchase the pushing screw rod and the injection assembly for assembly and can normally use, the disposable insulin pump is economical and environment-friendly, the recycling of resources is facilitated, the pushing screw rod and the injection assembly after use are abandoned in a proper treatment mode, the control assembly, the electromagnetic driving assembly and the pushing assembly are connected in a detachable mode, driving power is provided in a mode by using the electromagnetic driving mode, compared with the existing driving part, a motor, a speed reducer and other driving devices are not needed, the disposable insulin pump is beneficial to miniaturization of the device, convenient to use and carrying, the electromagnetic driving power output is more stable, the disposable electromagnetic driving power is controlled directly, the heat is easy to control, the insulin pump is convenient to use, the insulin pump is high in energy consumption is high, and the insulin pump is suitable for the patient to be converted to the patient with the health, and has high energy consumption and is convenient for the patient to use time.

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 diagram of the structure of a disposable insulin pump according to a preferred embodiment of the present utility model;

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

FIG. 3 is an exploded schematic view of a disposable insulin pump according to a preferred embodiment of the present utility model;

FIG. 4 is an exploded view of a portion of the components of the disposable insulin pump of the preferred embodiment of the present utility model;

FIG. 5 is an exploded view of a portion of the components of the disposable insulin pump of the preferred embodiment of the present utility model;

fig. 6 is an exploded view of the disposable insulin pump of the preferred embodiment of the present utility model.

Legend description:

1. an injection assembly; 2. pushing the screw rod; 3. a pushing assembly; 31. a mounting shell; 311. a connecting column; 312. a limit column; 32. a ratchet mechanism; 321. a rotating shaft; 322. a ratchet wheel; 33. a screw rod sleeve; 331. a fixing groove; 34. a locking mechanism; 35. a swinging member; 351. a magnetic attraction part; 352. a pushing part; 353. a limit part; 4. an electromagnetic drive assembly; 41. an electromagnet; 42. a power supply member; 5. a control assembly; 6. a first housing; 7. and a second housing.

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 diagram of the structure of a disposable insulin pump according to a preferred embodiment of the present utility model; FIG. 2 is a schematic diagram of the structure of a disposable insulin pump according to a preferred embodiment of the present utility model; FIG. 3 is an exploded schematic view of a disposable insulin pump according to a preferred embodiment of the present utility model; FIG. 4 is an exploded view of a portion of the components of the disposable insulin pump of the preferred embodiment of the present utility model; FIG. 5 is an exploded view of a portion of the components of the disposable insulin pump of the preferred embodiment of the present utility model; fig. 6 is an exploded view of the disposable insulin pump of the preferred embodiment of the present utility model.

As shown in fig. 1-3, the disposable insulin pump of this embodiment includes an injection component 1 for injecting a liquid medicine into a patient, a pushing screw 2 fixedly connected with the injection component 1, a pushing component 3 detachably connected with the pushing screw 2 for driving the pushing screw 2 to move axially so as to push the injection component 1 to inject the liquid medicine into the patient, an electromagnetic driving component 4 correspondingly arranged with the pushing component 3 for driving the pushing component 3 to work by electromagnetic driving so as to drive the pushing screw 2 to extend axially, and a control component 5 electrically connected with the electromagnetic driving component 4 for controlling the electromagnetic driving component 4 to work, wherein the pushing component 3, the electromagnetic driving component 4 and the control component 5 are of an integral structure. Specifically, when the disposable insulin pump disclosed by the utility model needs to inject liquid medicine into a patient, the electromagnetic driving assembly 4 is controlled to work through the control assembly 5 at first, so that the pushing assembly 3 is driven to work through an electromagnetic driving mode, and then the pushing screw rod 2 stretches out to push against the injection assembly 1 to inject the liquid medicine into the patient, thereby realizing the injection treatment of the liquid medicine of the patient, after the injection of the liquid medicine is finished, the pushing screw rod 2 and the pushing assembly 3 are separated, relatively expensive parts such as the control assembly 5, the electromagnetic driving assembly 4 and the pushing assembly 3 can be detached together, the patient only needs to spend little cost to purchase the pushing screw rod 2 and the injection assembly 1 to assemble for normal use, the disposable insulin pump is economical and environment-friendly, the pushing screw rod 2 and the injection assembly 1 after use are abandoned through a proper processing mode, the disposable scheme realizes the reutilization of the control assembly 5, the electromagnetic driving assembly 4 and the pushing assembly 3 through the electromagnetic driving mode, compared with the existing driving parts, the driving devices such as a motor, a speed reducer and the like are not needed, the disposable insulin pump is beneficial to the fact that the disposable insulin pump is convenient to use, the disposable insulin pump is convenient to take the heat and has high power consumption, and has the advantages of being more stable and stable, and has the energy consumption and high and is suitable for the patient to use, and has the health and the energy.

As shown in fig. 1, in this embodiment, the disposable insulin pump includes a first housing 6 and a second housing 7 detachably assembled and connected with the first housing 6 along the axial direction of the pushing screw 2, the injection assembly 1 is disposed in the first housing 6, and the pushing assembly 3, the electromagnetic driving assembly 4 and the control assembly 5 are disposed in the second housing 7. Specifically, through assembling second casing 7 on first casing 6 along the axial of pushing the lead screw 2 to make pushing lead screw 2 and pushing component 3 detachable connection, after assembling, can inject the liquid medicine to the patient in vivo, after the injection is accomplished, along pushing the axial split first casing 6 and the second casing 7 of lead screw 2, realize the recycle to second casing 7. Optionally, a waterproof rubber ring is arranged between the first shell 6 and the second shell 7. Optionally, the outer end face of the first housing 6 and/or the second housing 7 is provided with an application plate for application to the body surface of the patient.

As shown in fig. 4 to 5, in the present embodiment, the pushing assembly 3 includes a mounting housing 31, a ratchet mechanism 32 rotatably disposed on the mounting housing 31, a screw rod sleeve 33 axially slidably disposed in the ratchet mechanism 32 and sleeved outside the pushing screw rod 2, a locking mechanism 34 fixedly disposed on the ratchet mechanism 32 for fixing or releasing the screw rod sleeve 33, and a swinging member 35 rotatably disposed on the mounting housing 31 and disposed corresponding to the ratchet mechanism 32, wherein the swinging member 35 is disposed corresponding to the electromagnetic driving assembly 4, and the screw rod sleeve 33 is in threaded connection with the pushing screw rod 2. Specifically, the locking mechanism 34 fixes the screw rod sleeve 33, so that the ratchet mechanism 32 and the screw rod sleeve 33 are fixedly connected through the locking mechanism 34, the electromagnetic driving assembly 4 drives the swinging piece 35 to swing in an electromagnetic driving mode, so that the ratchet mechanism 32 is driven to rotate in a stepping mode, and the screw rod sleeve 33 is driven to rotate synchronously, and the pushing screw rod 2 is fixedly connected with the injection assembly 1, so that the pushing screw rod 2 axially stretches out to push the injection assembly 1 to inject liquid medicine into a patient relative to the screw rod sleeve 33 in a circumferential direction, after the injection of the liquid medicine is completed, the locking mechanism 34 releases the screw rod sleeve 33, and the screw rod sleeve 33 can axially slide out of the ratchet mechanism 32, so that the pushing assembly 3, the electromagnetic driving assembly 4 and the control assembly 5 are dismounted.

As shown in fig. 3, in the present embodiment, the electromagnetic driving assembly 4 includes an electromagnet 41 disposed corresponding to the swinging member 35 for electromagnetically driving the swinging member 35 to swing, and a power supply member 42 electrically connected to the electromagnet 41 and the control assembly 5, respectively, the electromagnet 41 includes two magnetic poles disposed at intervals and directed oppositely, and the power supply member 42 is used for changing the magnetism and the direction of the two magnetic poles at a preset frequency to drive the swinging member 35 to swing reciprocally in an extension region between the two magnetic poles. Specifically, the current is transmitted to the electromagnet 41 through the power supply member 42, so that the electromagnet 41 generates two magnetic poles with opposite directions, and then one repulsive swing member 35 is attracted, so that the swing member 35 swings in a direction close to one of the magnetic poles under the action of magnetic force, at this time, the power supply member 42 changes the directions of the two magnetic poles by changing the positive and negative poles of the current output, so that the swing member 35 swings in a direction close to the other magnetic pole under the action of magnetic force, based on the working principle, the power supply member 42 changes the directions of the two magnetic poles according to a preset frequency, so that the swing member 35 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 2 to extend and push, so that the injection assembly 1 is driven to inject medicine liquid. It should be understood that the preset frequency determines the frequency of the reciprocating oscillation of the oscillating member 35, and thus the injection speed of the liquid medicine, so as to be adaptively adjusted according to the use requirement of the patient. Optionally, the preset frequency is 5 ms/time, that is, the current flow direction of the power supply member 42 is changed every 5 ms, so as to change the directions of the two magnetic poles of the electromagnet 41, thereby realizing rapid injection of the liquid medicine. Alternatively, the electromagnet 41 is arranged in a U shape, and two magnetic poles are respectively arranged at two ends of the opening end of the electromagnet 41. It will be appreciated that when the electromagnet 41 is in a stationary state, the north-pointing pole is called north pole and the south-pointing pole is called south pole, and that the power supply 42 changes the pointing direction of the pole, meaning that the north pole changes to south pole and the south pole changes to north pole. It will be appreciated that when the power supply 42 supplies an electric current to the electromagnet 41, the electromagnet 41 is magnetically provided and generates a magnetic force that attracts and repels the oscillating piece 35, thereby driving the pushing screw 2 to extend against it; when the power supply member 42 does not supply current to the electromagnet 41, the electromagnet 41 stops operating, and accordingly, the pushing screw 2 also fails to operate.

As shown in fig. 4 and 5, in the present embodiment, the ratchet mechanism 32 includes a rotation shaft 321 rotatably disposed on the mounting housing 31, a ratchet 322 fixedly sleeved outside the rotation shaft 321, and a plurality of ratchet teeth sequentially disposed along the circumferential direction of the ratchet 322, and a sliding cavity slidably connected with the screw rod sleeve 33 is axially provided in the rotation shaft 321. Specifically, when the medical liquid needs to be injected into the patient, the screw rod sleeve 33 is inserted into the rotating shaft 321, the locking mechanism 34 locks the screw rod sleeve 33, the ratchet is pushed against by the swinging piece 35 to drive the ratchet 322 to rotate step by step, at this time, the ratchet 322 drives the rotating shaft 321 to rotate step by step, and then the screw rod sleeve 33 is driven to rotate step by step, so that the extending pushing of the pushing screw rod 2 is realized.

As shown in fig. 3, in this embodiment, the locking mechanism 34 includes a locking screw radially penetrating the rotating shaft 321 along the rotating shaft 321 and configured to extend into the sliding cavity to press against the fixed screw sleeve 33, where the locking screw is screwed with the rotating shaft 321. Specifically, the locking screw rotates relative to the rotating shaft 321, so as to extend into the sliding cavity along the radial direction of the rotating shaft 321 to press the fixed screw sleeve 33, the rotating shaft 321 can drive the screw sleeve 33 to synchronously rotate, or extend out of the rotating shaft 321 along the radial direction of the rotating shaft 321 to release the screw sleeve 33, and the screw sleeve 33 can slide out of the rotating shaft 321.

As shown in fig. 3, in this embodiment, a fixing groove 331 is formed on the outer wall of the screw sleeve 33 along the radial direction, and is in plug-in fit with the locking screw. Specifically, the locking screw rotates relative to the rotation shaft 321 to extend into the sliding cavity along the radial direction of the rotation shaft 321 and insert into the fixing groove 331, and the rotation shaft 321 can drive the screw sleeve 33 to rotate synchronously.

As shown in fig. 4, in the present embodiment, the mounting housing 31 includes a connection post 311 disposed along a height direction of the mounting housing 31, the swinging member 35 is rotatably sleeved on the connection post 311, and the swinging member 35 includes a magnetic attraction portion 351 disposed in an extension region between two magnetic poles and keeping a predetermined distance from the electromagnet 41 for reciprocating with a change in magnetism of the two magnetic poles, and a pushing portion 352 for pushing the ratchet mechanism 32 to rotate stepwise with the reciprocating swing of the magnetic attraction portion 351. Specifically, the electromagnet 41 drives the magnetic attraction part 351 to swing repeatedly, so as to drive the pushing part 352 to swing repeatedly, and then push the ratchet mechanism 32, so that the ratchet mechanism 32 rotates in a stepping manner, and the pushing screw rod 2 is driven to extend axially to push the injection assembly 1, and injection operation is completed. Alternatively, the magnetic attraction portion 351 is made of a ferromagnetic material. Alternatively, the magnetic attraction portion 351 is an electromagnet. It should be understood that, since the magnetic attraction portion 351 maintains a preset distance from the electromagnet 41, the magnetic attraction portion 351 of the swinging member 35 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 larger the current supplied by the power supply member 42, the larger the magnetic force of the two poles on the electromagnet 41, and the faster the swing speed of the magnetic attraction portion 351. 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 pushing assembly 3.

As shown in fig. 4, in the present embodiment, the end of the mounting housing 31 away from the magnetic attraction portion 351 is provided with a plurality of limiting posts 312 arranged along the height direction of the mounting housing 31, the plurality of limiting posts 312 are arranged at intervals along the length direction of the mounting housing 31 and form a limiting gap, and the end of the swinging member 35 away from the magnetic attraction portion 351 is provided with a limiting portion 353 extending along the length direction of the swinging member 35 and extending into the limiting gap for abutting against the limiting posts 312 during the swinging of the swinging member 35 to limit the swinging range of the swinging member 35. Specifically, during the swinging process of the swinging member 35, the limiting portion 353 swings synchronously, and the limiting portion 353 stretches into the limiting gap to be limited by the abutting of the limiting post 312, so that the swinging range of the swinging member 35 can be limited correspondingly, the swinging range of the swinging member 35 is prevented from being too large, the abutting portion 352 is prevented from being separated from the abutting area of the ratchet, and further the locking is possibly caused by interference of the ratchet, so that the movement stability and reliability of the swinging member 35 are ensured.

As shown in fig. 4, in this embodiment, a plurality of limiting protrusions extending along the width direction of the mounting housing 31 are disposed on the side wall of the mounting housing 31, and a plurality of limiting protrusions are disposed at intervals along the length direction of the mounting housing 31 to form a limiting groove, the swinging member 35 further includes a limiting hole disposed along the thickness direction of the swinging member 35 and corresponding to the limiting groove, and a limiting block disposed in the limiting hole, and the limiting end of the limiting block extends into the limiting groove to be abutted with the limiting protrusions during the swinging of the swinging member 35 to limit the swinging range of the swinging member 35. Specifically, in the swinging process of the swinging member 35, the limiting block swings synchronously, and the limiting end of the limiting block stretches into the limiting groove to be limited by the abutting joint of the limiting protrusion, so that the swinging range of the swinging member 35 can be limited correspondingly, the swinging range of the swinging member 35 is prevented from being too large, the abutting part 352 is prevented from being separated from the abutting area of the ratchet, and further the blocking caused by interference of the ratchet can be prevented, 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 mounting housing 31, and the length direction of the mounting housing 31 is the same as the swing direction of the magnetic attraction portion 351, so that the limiting block is slidably disposed in the limiting groove along the swing direction, and the swing range of the swing member 35 is properly increased by sliding the limiting block in the limiting groove, so that the swing range of the swing member 35 is prevented from being too small, and the pushing process of the pushing portion 352 is prevented from being too small, so that the rotation speed of the ratchet 322 is too slow, and the injection speed of the injection assembly 1 is further affected. It should be understood that the preset distance can be adaptively adjusted according to the use requirement of the product, and the swing of the magnetic attraction part 351 can be realized.

As shown in fig. 6, in this embodiment, the pushing assembly 3 includes a mounting housing 31, a ratchet mechanism 32 rotatably disposed on the mounting housing 31, a screw sleeve 33 fixedly disposed in the ratchet mechanism 32 and sleeved outside the pushing screw 2, and a swinging member 35 rotatably disposed on the mounting housing 31 and correspondingly disposed with the ratchet mechanism 32, wherein the swinging member 35 is correspondingly disposed with the electromagnetic driving assembly 4, and the screw sleeve 33 includes a threaded driving portion in threaded connection with the pushing screw 2 for driving the pushing screw 2 to axially move through a threaded structure, and a sliding portion in sliding connection with the pushing screw 2 for sliding the pushing screw 2 out of the screw sleeve 33. Specifically, the electromagnetic driving assembly 4 drives the swinging member 35 to swing in an electromagnetic driving manner, so as to drive the ratchet mechanism 32 to rotate step by step, and further drive the screw sleeve 33 to rotate synchronously, and as the pushing screw rod 2 is fixedly connected with the injection assembly 1, the pushing screw rod 2 is circumferentially fixed differently relative to the screw sleeve 33, the screw driving portion drives the pushing screw rod 2 to axially move through the screw thread structure, so that the injection of the liquid medicine of the injection assembly 1 is realized, until the pushing screw rod 2 axially moves to the sliding portion, at the moment, the liquid medicine is correspondingly injected, the pushing screw rod 2 can slide out of the screw sleeve 33 through the sliding portion, and the pushing assembly 3, the electromagnetic driving assembly 4 and the control assembly 5 are dismounted.

In this embodiment, the injection assembly 1 includes a liquid storage member fixedly connected to the push screw 2 for storing a liquid medicine and an injection member communicated with the liquid storage member for injecting the liquid medicine into a patient. Specifically, the lead screw 2 is pushed to push the liquid medicine of the liquid storage part into the injection part, and then the liquid medicine is injected into a patient through the injection part, so that the liquid medicine injection is realized. Optionally, the injection part comprises a needle tube, a rubber tube and a needle tube control mechanism for driving the needle implantation and extraction of the needle tube, wherein the needle of the needle tube is preferably a stainless steel needle, so that bacterial infection possibly caused is reduced, the needle tube is connected with the liquid storage part through a hose, and the liquid storage part supplies liquid for the needle tube; the rubber tube cover is located the outside of needle tubing, and the needle tubing can take place relative motion with the rubber tube between, when needs carry out the injection to the patient, and the syringe needle of needle tubing is stretched out outside the rubber tube to needle tubing control mechanism control needle tubing, accomplishes the injection back, and the syringe needle control mechanism control needle on the needle tubing is received in the rubber tube again, reduces the patient because of the syringe needle is stored the misery that produces in the body for a long time. Optionally, the base plate pastes to patient's health one side and is equipped with the piece of applying, has seted up the pinhole on the piece of applying and can supply the syringe needle on the needle tubing to pass and implement the medicine injection to the patient, has replaced the use of long pipe through this kind of mode of applying, has avoided the pipe to rub with user's health when using long pipe, long pipe probably hangs on other objects etc. and leads to the phenomenon emergence of patient's discomfort. Optionally, the needle tube control mechanism 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, the elastic assembly comprises a screw, a torsion spring is installed at one end of the mounting frame, the outside of the screw is sleeved with the 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 connecting rod 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 inclined surface stop block assembly, one end of the inclined surface stop block assembly, which is positioned in the shell, is connected with a stop block between the first sliding block and the second sliding block, and the stop block is in two use states, and the stop block is separated into two use states when the inclined surface stop block assembly is pulled outwards, the first sliding block and the second sliding block rotates and the second sliding block and the reset arm is rotationally and reset, and the second sliding block is driven to move on the sliding rail and the first sliding block and the sliding block; 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. Preferably, after 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, so that the problem of complications caused by the needle remaining in the patient is avoided, specifically, a blocking hole is formed in one end of the second slider, which is far away from the first slider, a spring thimble is correspondingly arranged on the front cover, after the second slider slides to a certain position, the spring thimble pops up and is inserted into the blocking hole, the second slider is fixed, so that the rubber tube cannot be driven to retract, the first slider is reset and retracted 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 operation of the button piece is performed, the first slider is pushed to move so as to push the needle tube out.

In this embodiment, the liquid storage member includes a liquid storage housing and a piston disposed in the liquid storage housing, and a connecting groove fixedly connected with the pushing screw 2 is concavely disposed on an end surface of the piston facing the pushing screw 2. Specifically, the pushing screw rod 2 is fixedly connected through the connecting groove, so that the pushing assembly 3 drives the pushing screw rod 2 to extend out to push, and the liquid medicine in the liquid storage shell is led into the injection part. Optionally, a first end of the pushing screw rod 2 is provided with a first external thread in threaded connection with the pushing assembly 3, a second end of the pushing screw rod 2 is provided with a second external thread, the rotation directions of the first external thread and the second external thread are opposite, and the inner wall of the connecting groove is provided with an internal thread in threaded connection with the second external thread.

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 utility model provides a throwable insulin pump, a serial communication port, including being used for to the internal injection subassembly (1) of injection liquid medicine of patient, with injection subassembly (1) fixed connection's promotion lead screw (2), be used for driving promotion lead screw (2) axial displacement with promote the promotion subassembly (3) of injection subassembly (1) to the internal injection liquid medicine of patient with promoting the detachable connection of lead screw (2), be used for through electromagnetic drive's mode drive promotion subassembly (3) work with the corresponding arrangement of promotion subassembly (3) in order to drive the electromagnetic drive subassembly (4) of promotion lead screw (2) axial extension and be connected with electromagnetic drive subassembly (4) be used for controlling electromagnetic drive subassembly (4) work control subassembly (5), promotion subassembly (3), electromagnetic drive subassembly (4) and control subassembly (5) are monolithic structure.

2. The disposable insulin pump according to claim 1, characterized in that the disposable insulin pump comprises a first shell (6) and a second shell (7) which is detachably assembled and connected with the first shell (6) along the axial direction of the pushing screw rod (2), the injection assembly (1) is arranged in the first shell (6), and the pushing assembly (3), the electromagnetic driving assembly (4) and the control assembly (5) are arranged in the second shell (7).

3. The disposable insulin pump according to claim 1, wherein the pushing assembly (3) comprises a mounting shell (31), a ratchet mechanism (32) rotatably arranged on the mounting shell (31), a screw rod sleeve (33) axially slidably arranged in the ratchet mechanism (32) and sleeved outside the pushing screw rod (2), a locking mechanism (34) fixedly arranged on the ratchet mechanism (32) and used for fixing or loosening the screw rod sleeve (33), and a swinging member (35) rotatably arranged on the mounting shell (31) and correspondingly arranged with the ratchet mechanism (32), wherein the swinging member (35) is correspondingly arranged with the electromagnetic driving assembly (4), and the screw rod sleeve (33) is in threaded connection with the pushing screw rod (2).

4. A disposable insulin pump according to claim 3, wherein the electromagnetic driving assembly (4) comprises an electromagnet (41) which is arranged corresponding to the swinging member (35) and is used for electromagnetically driving the swinging member (35) to swing, and a power supply member (42) which is electrically connected with the electromagnet (41) and the control assembly (5) respectively, the electromagnet (41) comprises two magnetic poles which are arranged at intervals and are opposite in direction, and the power supply member (42) 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 (35) to swing back and forth in an extension area between the two magnetic poles.

5. The disposable insulin pump according to claim 4, wherein the mounting housing (31) includes a connection post (311) disposed along a height direction of the mounting housing (31), the swinging member (35) is rotatably sleeved on the connection post (311), the swinging member (35) includes a magnetic attraction portion (351) disposed in an extension region between the two magnetic poles and maintaining a predetermined distance from the electromagnet (41) for reciprocating with a change in magnetism of the two magnetic poles, and a pushing portion (352) for pushing the ratchet mechanism (32) to rotate stepwise with the reciprocating of the magnetic attraction portion (351).

6. The disposable insulin pump according to claim 5, wherein the end of the mounting housing (31) away from the magnetic attraction part (351) is provided with a plurality of limit posts (312) arranged along the height direction of the mounting housing (31), the plurality of limit posts (312) are arranged at intervals along the length direction of the mounting housing (31) and form a limit gap, and the end of the swinging member (35) away from the magnetic attraction part (351) is provided with a limit part (353) which is formed by extending along the length direction of the swinging member (35) and extends into the limit gap and is used for abutting against the limit posts (312) during the swinging of the swinging member (35) so as to limit the swinging range of the swinging member (35).

7. A disposable insulin pump according to claim 3, wherein the ratchet mechanism (32) comprises a rotating shaft (321) rotatably arranged on the mounting housing (31), a ratchet wheel (322) fixedly sleeved outside the rotating shaft (321) and a plurality of ratchet teeth sequentially arranged along the circumferential direction of the ratchet wheel (322), and a sliding cavity in sliding connection with the screw rod sleeve (33) is axially formed in the rotating shaft (321).

8. The disposable insulin pump according to claim 7, wherein the locking mechanism (34) comprises a locking screw penetrating the rotating shaft (321) along the radial direction of the rotating shaft (321) and used for extending into the sliding cavity to press against the fixed screw sleeve (33), and the locking screw is in threaded connection with the rotating shaft (321).

9. The disposable insulin pump according to claim 8, wherein a fixing groove (331) which is in plug-in fit with the locking screw is formed in the outer wall of the screw rod sleeve (33) in the radial direction.

10. The disposable insulin pump according to any one of claims 1 to 2, wherein the pushing assembly (3) comprises a mounting housing (31), a ratchet mechanism (32) rotatably arranged on the mounting housing (31), a screw sleeve (33) fixedly arranged in the ratchet mechanism (32) and sleeved outside the pushing screw (2), and a swinging member (35) rotatably arranged on the mounting housing (31) and correspondingly arranged with the ratchet mechanism (32), the swinging member (35) is correspondingly arranged with the electromagnetic driving assembly (4), and the screw sleeve (33) comprises a threaded driving part which is in threaded connection with the pushing screw (2) and is used for driving the pushing screw (2) to axially move through a threaded structure, and a sliding part which is in sliding connection with the pushing screw (2) and is used for sliding out of the screw sleeve (33).

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