CN115054773A - Drive insulin pump that resets - Google Patents

Abstract

The invention discloses a drive reset insulin pump. After the injection of medicinal liquid is completed, the push screw rod is separated from the injection component, the energy component is connected with the charging part in the drive reset mechanism to store enough electric energy, and the executive component It is connected with the reset piece in the drive reset mechanism so that the push screw rod extends and pushes out and then retracts and resets, so as to restore the energy assembly, control assembly and execution assembly to the initial state and can be assembled with a new injection assembly; The reset mechanism realizes the recycling of energy components, control components and execution components, so that patients only need to replace the injection components during use, and the drive reset insulin pump can be used repeatedly, which greatly reduces the use cost of patients for long-term use. While meeting the needs of patients with type 1 diabetes, it is easy to popularize to patients with type 2 diabetes and gestational diabetes, has strong practicability, and is suitable for widespread promotion and application.

Description

drive reset insulin pump

technical field

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

Background technique

The insulin pump can adjust the patient according to the characteristics of the physiological insulin secretion at different times by simulating the physiological insulin secretion mode. Therefore, the insulin pump is a more humanized treatment that is more in line with the physiological insulin secretion mode.

The existing insulin pump usually has a control part, an execution part and an injection part. The control part controls the execution part of the work, and then controls the injection part to inject insulin into the patient's body. According to the relevant regulations of medical equipment, after the injection part completes the injection operation. , the injection part needs to be disposed of in a proper way. However, in order to work stably and reliably during use, the insulin pump is designed with an integral structure, which leads to troublesome disassembly and assembly of the insulin pump, and because the injection part usually has a storage liquid The liquid storage tube and the piston set in the liquid storage tube are used in the execution part to push the piston to move in a step-by-step manner to realize the injection of the liquid medicine. It is troublesome to shrink and reset after completion. Due to the above reasons, the existing insulin pump is equivalent to a disposable product, which can only be discarded after use, which greatly increases the use cost of the patient. Accepted in patients with gestational diabetes mellitus.

SUMMARY OF THE INVENTION

The present invention provides a drive reset insulin pump, so as to solve the technical problem that the existing insulin pump can only be discarded after being used by a patient and is expensive to use for a long time.

According to one aspect of the present invention, a drive reset insulin pump is provided, comprising an injection assembly for performing an injection operation on a patient, an execution assembly for controlling the injection assembly to inject the patient, a control assembly for controlling the operation of the execution assembly, An energy component for providing electrical energy to the control component and a drive reset mechanism detachably connected to the energy component and the execution component respectively, the energy component, the control component and the execution component are integral structures, and the execution component includes a detachable connection with the injection component. For the push screw rod extending out of the push-pull injection assembly to perform the injection operation on the patient, the drive reset mechanism includes a charging part for detachable connection with the energy source assembly to supplement electrical energy to the energy source assembly and a detachable connection with the execution assembly to A reset piece that retracts and resets after pushing the push screw rod out.

As a further improvement of the above technical solution:

Further, the actuator assembly includes a drive member, a support housing, a swing member movably arranged on the support housing and corresponding to the drive member, and a ratchet mechanism rotatably arranged on the support housing and corresponding to the swing member. and a screw sleeve fixedly arranged in the ratchet mechanism and sleeved on the outside of the push screw rod, the screw sleeve is threadedly connected with the push screw rod, the driving part is used to drive the swinging part to swing, and the ratchet mechanism is used to drive the screw sleeve to rotate , the screw sleeve is used to drive the push screw to extend or retract and reset, and the swing piece is used to push the ratchet mechanism to rotate in the forward direction to drive the screw sleeve to rotate in the forward direction, thereby driving the push screw to extend and push against the screw sleeve. In addition, the reset piece is used to be detachably connected with the pushing screw rod and the ratchet mechanism respectively to drive the ratchet mechanism to rotate in the reverse direction and then drive the screw sleeve to rotate in the reverse direction, so as to drive the pushing screw rod to shrink and reset in the screw sleeve.

Further, the ratchet mechanism includes a rotating shaft rotatably arranged on the support housing and fixedly sleeved outside the screw sleeve, a ratchet wheel unidirectionally rotatably sleeved outside the rotating shaft, and sequentially arranged along the circumferential direction of the ratchet. A plurality of ratchet teeth, the rotating shaft is detachably connected with the reset piece.

Further, the reset piece includes a reset motor, a connecting sleeve arranged on the output shaft of the reset motor and detachably connected to the rotating shaft, and a movable sleeve detachably connected with the push screw rod for preventing the push screw rod from rotating in the circumferential direction. cylinder.

Further, the driving member includes an electromagnet and a power supply member electrically connected to the electromagnet. The electromagnet includes two magnetic poles arranged at intervals and pointing in opposite directions. swing.

Further, the support shell includes a connecting column arranged along the height direction of the support shell, the swinging member is rotatably sleeved on the connecting column, and the swinging member includes an extension area disposed between the two magnetic poles and is preset with the electromagnet. The magnetic attraction part of the pitch is used for reciprocating swinging with the change of the magnetism of the two magnetic poles, and the abutting part is used for pushing against the rotation of the ratchet mechanism with the reciprocating swing of the magnetic attraction part.

Further, a plurality of limit protrusions extending along the width direction of the support shell are provided on the side walls of the support shell, and the plurality of limit protrusions are arranged at intervals along the length direction of the support shell to form limit grooves. , the swing piece also includes a limit hole opened along the thickness direction of the swing piece and corresponding to the limit slot and a limit block arranged in the limit hole, the limit end of the limit block extends into the limit slot for During the swinging process of the swinging member, it is in contact with the limiting protrusion to limit the swinging range of the swinging member.

Further, the end of the support housing away from the magnetic attraction portion is provided with a plurality of limit posts arranged along the height direction of the support housing, and the plurality of limit posts are arranged along the length direction of the support housing at intervals to form a limit gap. , the end of the swinging member away from the magnetic attraction portion is provided with an extension formed along the length direction of the swinging member and extending into the limit gap for abutting with the limit post during the swinging process of the swinging member to limit the swinging range of the swinging member the limit part.

Further, the oscillating member further includes an elastic member sleeved on the connecting column and used to press the oscillating member.

Further, the energy component includes a charging socket, and the charging member includes a charging base and a charging plug arranged on the charging base and used to be inserted into the charging socket.

The present invention has the following beneficial effects:

The drive reset insulin pump of the present invention provides working electrical energy to the control assembly through the energy assembly, so that the control assembly controls the execution assembly to work, so that the push screw rod of the execution assembly extends out of the push injection assembly to inject medicinal liquid into the patient In the body, after the injection of the medicinal liquid is completed, the push screw rod is separated from the injection assembly. At this time, the injection assembly is disposed of in a suitable manner. Connect the actuator assembly with the reset piece in the drive reset mechanism so that the push screw rod extends out and pushes out and then retracts and resets, so as to restore the energy source assembly, the control assembly and the execution assembly to the original state and can be assembled with a new injection assembly, and then It can be injected into the patient again, so that under the condition that the relevant regulations of medical equipment are met, only the injection components that must be discarded can be discarded, and the repeated use of the drive reset insulin pump can be realized, and the use cost of the patient can be reduced to the greatest extent; The scheme realizes the recycling of energy components, control components and actuator components by driving the reset mechanism, so that patients only need to replace the injection components during use, and the driven reset insulin pump can be used repeatedly, which greatly reduces the use of patients for a long time. Cost, while meeting the needs of patients with type 1 diabetes, it is easy to popularize to patients with type 2 diabetes and gestational diabetes, has strong practicability, and is suitable for widespread promotion and application.

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

Description of drawings

The accompanying drawings constituting a part of the present application are used to provide further understanding of the present invention, and the exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the attached image:

1 is a schematic structural diagram of a drive reset insulin pump according to a preferred embodiment of the present invention;

Fig. 2 is the partial structure schematic diagram of the drive reset insulin pump of the preferred embodiment of the present invention;

3 is an exploded schematic view of the drive reset insulin pump shown in FIG. 2;

Fig. 4 is the exploded schematic diagram of the partial structure in the drive reset insulin pump shown in Fig. 2;

FIG. 5 is a partial structural schematic diagram of a drive-reset insulin pump according to a preferred embodiment of the present invention.

illustration:

1. Injection assembly; 2. Execution assembly; 21, push screw; 22, drive part; 221, electromagnet; 222, power supply part; 23, support shell; 231, connecting column; 232, limit protrusion; 233, limit post; 24, swing piece; 241, magnetic attraction part; 242, push part; 243, limit hole; 244, limit block; 245, limit part; 246, elastic part; 25, ratchet mechanism ;251, rotating shaft; 252, ratchet; 26, screw sleeve; 3, control assembly; 4, energy assembly; 5, drive reset mechanism; 51, charging part; 511, charging base; 512, charging plug; 52, reset 521, reset the motor; 522, connect the sleeve.

Detailed ways

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways as defined and covered below.

Fig. 1 is the structural schematic diagram of the drive reset insulin pump of the preferred embodiment of the present invention; Fig. 2 is the partial structural schematic diagram of the drive reset insulin pump of the preferred embodiment of the present invention; Fig. 3 is the exploded schematic diagram of the drive reset insulin pump shown in Fig. 2; FIG. 4 is an exploded schematic view of a part of the structure of the drive-reset insulin pump shown in FIG. 2 ; FIG. 5 is a schematic view of a part of the structure of the drive-reset insulin pump according to a preferred embodiment of the present invention.

As shown in FIG. 1 , the drive reset insulin pump of this embodiment includes an injection assembly 1 for injecting a patient, an execution assembly 2 for controlling the injection assembly 1 to inject a patient, and an execution assembly 2 for controlling the operation of the execution assembly 2 The control assembly 3, the energy assembly 4 for providing electrical energy to the control assembly 3, and the drive reset mechanism 5 detachably connected to the energy assembly 4 and the execution assembly 2 respectively, the energy assembly 4, the control assembly 3 and the execution assembly 2 are integral Structure, the execution assembly 2 includes a push screw rod 21 detachably connected with the injection assembly 1 for pushing the injection assembly 1 to perform an injection operation on the patient, and the drive reset mechanism 5 includes a detachable connection with the energy source assembly 4 to inject into the patient. The energy source assembly 4 has a charging member 51 for supplementing energy, and a reset member 52 for detachably connecting with the execution assembly 2 so that the pushing screw 21 is extended and retracted after being pushed back. Specifically, the drive-reset insulin pump of the present invention provides working electrical energy to the control assembly 3 through the energy source assembly 4, so that the control assembly 3 controls the execution assembly 2 to work, thereby causing the push screw 21 of the execution assembly 2 to extend and push The injection assembly 1 is used to inject the medicinal liquid into the patient's body. After the medicinal liquid injection is completed, the push screw 21 is separated from the injection assembly 1. At this time, the injection assembly 1 is disposed of in a suitable manner, and the energy assembly 4 and the drive The charging member 51 in the reset mechanism 5 is connected to store enough electrical energy, and the actuator assembly 2 is connected with the reset member 52 in the drive reset mechanism 5 to make the push screw 21 stretch out and push back and then shrink and reset, so as to restore the energy assembly. 4. The control assembly 3 and the execution assembly 2 can be assembled with a new injection assembly 1 when they are restored to their original state, and then they can be injected into the patient again, so that only the injection assemblies that must be disposed of are discarded under the condition that the relevant regulations of medical equipment are met. 1, the repeated use of the drive reset insulin pump can be realized, and the cost of use of the patient is reduced to the greatest extent; this scheme realizes the recycling of the energy component 4, the control component 3 and the execution component 2 through the drive reset mechanism 5, so that the The patient only needs to replace the injection component 1 during use, and the drive reset insulin pump can be used repeatedly, which greatly reduces the use cost of the patient for a long time. While meeting the needs of type 1 diabetes patients, it is convenient for type 2 diabetes patients and pregnant women It is popular among diabetic patients, has strong practicability, and is suitable for wide promotion and application. It should be understood that patients with type 1 diabetes are seriously ill, so they need to use insulin pumps with good efficacy for treatment. Patients with type 2 diabetes and gestational diabetes are relatively mildly ill and have a variety of treatment options, while general insulin pumps are expensive. Moreover, it is troublesome to use, and is not accepted by patients with type 2 diabetes and gestational diabetes, while the driving reset insulin pump in this application can greatly reduce the cost of use for a long time, the price is relatively low, and it is easy to carry and use, even if it is used for 2 Type diabetes and gestational diabetes are popularized.

As shown in FIG. 2 and FIG. 5 , in this embodiment, the execution assembly 2 includes a driving member 22 , a supporting housing 23 , a swinging member 24 movably arranged on the supporting housing 23 and correspondingly arranged with the driving member 22 , and a movable member 24 . The ratchet mechanism 25 is rotatably arranged on the support housing 23 and corresponding to the swinging member 24, and the screw sleeve 26 is fixedly arranged in the ratchet mechanism 25 and sleeved on the outside of the pushing screw 21. The push screw rod 21 is threadedly connected, the driving member 22 is used to drive the swing member 24 to swing, the ratchet mechanism 25 is used to drive the screw rod sleeve 26 to rotate, and the screw rod sleeve 26 is used to drive the push screw rod 21 to extend and push or shrink and reset. The swinging member 24 is used to push the ratchet mechanism 25 to rotate in the forward direction to drive the screw sleeve 26 to rotate in the forward direction, thereby driving the pusher screw 21 to extend and push outside the screw sleeve 26, and the reset member 52 is used to respectively connect with the pusher screw 21 and the ratchet mechanism 25 are detachably connected to drive the ratchet mechanism 25 to rotate in the reverse direction, thereby driving the screw sleeve 26 to reversely rotate, so as to drive the pushing screw 21 to retract and reset into the screw sleeve 26 . Specifically, the swing member 24 , the ratchet mechanism 25 , the screw sleeve 26 and the pushing screw 21 are stably supported by the support housing 23 to ensure the swing member 24 , the ratchet mechanism 25 , the screw sleeve 26 and the pushing screw rod The reliability of the mutual movement between 21 and 21, when the liquid medicine is injected, the driving member 22 drives the swing member 24 to swing back and forth, so as to drive the ratchet mechanism 25 to rotate in a stepwise forward direction, thereby driving the screw sleeve 26 to rotate in a stepwise forward direction. , so as to drive the push screw 21 to step out and push, and inject the medicinal liquid into the patient's body. After the medicinal liquid injection is completed, the ratchet mechanism 25 and the push screw 21 are connected to the reset member 52, so that the The reset member 52 drives the ratchet mechanism 25 to rotate in the reverse direction, which in turn drives the screw sleeve 26 to rotate in the reverse direction, thereby driving the pusher screw 21 to retract and reset into the screw sleeve 26, so that the actuator assembly 2 can push the next injection assembly 1. , to complete the injection of the next injection component 1. It should be understood that the push screw 21 and the injection assembly 1 or the reset member 52 are detachably connected, and when the ratchet mechanism 25 drives the screw sleeve 26 to rotate, the push screw 21 can only move in the axial direction to complete the injection assembly 1 The injection operation or axial movement realizes shrinkage and reset, but cannot rotate synchronously with the rotation of the screw sleeve 26, that is, the push screw 21 is fixed in the circumferential direction.

As shown in FIG. 3 , in this embodiment, the ratchet mechanism 25 includes a rotating shaft 251 rotatably arranged on the support housing 23 and fixedly sleeved on the outside of the screw sleeve 26 , and unidirectionally rotatably sleeved on the rotating shaft The ratchet wheel 252 outside 251 and a plurality of ratchet teeth arranged in sequence along the circumferential direction of the ratchet wheel 252 are detachably connected to the rotating shaft 251 and the reset member 52 . Specifically, when the liquid medicine needs to be injected, the ratchet teeth are pushed by the swinging member 24 to drive the ratchet wheel 252 to rotate in the forward direction. At this time, the ratchet wheel 252 drives the rotation shaft 251 to rotate in the forward direction, thereby driving the screw sleeve 26 to rotate in the forward direction. Realize the extension and push of the push screw 21; when the reset member 52 drives the rotating shaft 251 to rotate in the opposite direction, the rotating shaft 251 rotates in the opposite direction relative to the ratchet wheel 252, that is, the ratchet wheel 252 is fixed differently, and will not be different from the swing member 24. When abutting interference occurs, the rotating shaft 251 drives the screw sleeve 26 to rotate in the reverse direction, thereby driving the pushing screw 21 to move axially, shrink and return to the inside of the screw sleeve 26 . Optionally, the rotating shaft 251 adopts an internally hollow sleeve structure.

As shown in FIG. 1 , in this embodiment, the reset member 52 includes a reset motor 521 , a connecting sleeve 522 arranged on the output shaft of the reset motor 521 and detachably connected to the rotating shaft 251 , and a detachable connection to the push screw 21 . The movable sleeve is used to prevent the push screw 21 from rotating in the circumferential direction. Specifically, the reset motor 521 works to drive the output shaft to rotate, which in turn drives the connection sleeve 522 to rotate, thereby drives the rotation shaft 251 to rotate, and finally drives the screw sleeve 26 to rotate, and the movable sleeve prevents the push screw 21 from rotating in the circumferential direction. , so that the pushing screw 21 moves axially relative to the screw sleeve 26 to realize the retraction and reset of the pushing screw 21 . Optionally, the movable sleeve includes a movable sleeve arranged coaxially with the pushing screw 21 , a movable sleeve movably arranged in the movable sleeve in the axial direction and detachably connected with the protruding end of the pushing screw 21 . The limit block and the support base supporting the movable sleeve from the bottom are connected with the push screw 21 through the movable limit block to prevent the push screw 21 and the screw sleeve 26 from rotating in the circumferential direction synchronously.

As shown in FIG. 5 , in this embodiment, the driving member 22 includes an electromagnet 221 and a power supply member 222 that is electrically connected to the electromagnet 221 . The electromagnet 221 includes two magnetic poles arranged at intervals and pointing in opposite directions. The frequency is set to change the magnetism and orientation of the two magnetic poles to drive the swinging member 24 to swing back and forth. Specifically, the current is transmitted to the electromagnet 221 through the power supply member 222 , so that the electromagnet 221 generates two magnetic poles that are magnetic and point in opposite directions, and then one attracts and one repels the swinging member 24 , so that the swinging member 24 moves closer under the action of the magnetic force. The direction of one of the magnetic poles swings. At this time, the power supply member 222 changes the direction of the two magnetic poles by changing the positive and negative poles of the current output, so that the swinging member 24 swings in the direction close to the other magnetic pole under the action of the magnetic force. Based on the above Working principle, the power supply member 222 changes the direction of the two magnetic poles according to the preset frequency, so that the swing member 24 swings back and forth in the extension area between the two magnetic poles with the change of the direction of the two magnetic poles, thereby driving the push screw 21 to extend and push , thereby driving the injection component 1 to inject the medicinal liquid, and the electromagnetic drive makes the power output more stable, direct and reliable, which is conducive to the precise control of the amount of insulin injected to the patient and ensures the health of the patient. At the same time, the energy conversion efficiency of electromagnetism is relatively The energy conversion efficiency for electric heat generation is high, the power consumption is low, and the use time is long under the same power condition, which is convenient for patients to use for a long time. It should be understood that the preset frequency determines the frequency of the reciprocating swing of the oscillating member 24, which in turn determines the injection speed of the medicinal liquid, which can be adaptively adjusted according to the needs of the patient. Optionally, the preset frequency is 5 milliseconds/time, that is, the current flow direction of the power supply member 222 is changed every 5 milliseconds to change the directions of the two magnetic poles of the electromagnet 221, thereby realizing rapid injection of the medicinal liquid. Optionally, the shape of the electromagnet 221 is arranged in a “U” shape, and the two magnetic poles are respectively arranged at both ends of the open end of the electromagnet 221 . It should be understood that when the electromagnet 221 is at rest, the magnetic pole pointing north is called the north pole, and the magnetic pole pointing south is called the south pole, and the power supply member 222 changes the direction of the magnetic pole, which means changing the north pole to the south pole and the south pole to the north pole. . It should be understood that when the power supply member 222 provides current to the electromagnet 221, the electromagnet 221 has magnetism and generates a magnetic force that attracts and repels the swing member 24, thereby driving the push screw 21 to extend and push; when the power supply member 222 does not When current is supplied to the electromagnet 221, the electromagnet 221 stops working, and accordingly, the push screw 21 cannot work. It should be understood that, in another embodiment, the driving member 22 uses a memory alloy to drive the oscillating member 24 to oscillate.

As shown in FIG. 3 , in this embodiment, the support casing 23 includes a connecting column 231 arranged along the height direction of the supporting casing 23 , the swinging member 24 is rotatably sleeved on the connecting column 231 , and the swinging member 24 includes The extending area between the two magnetic poles and maintaining a preset distance from the electromagnet 221 is a magnetic attraction portion 241 for reciprocating swing with the change of the magnetic properties of the two magnetic poles, and a magnetic attraction portion 241 for pushing the ratchet mechanism 25 with the reciprocating swing of the magnetic attraction portion 241 The rotating abutting portion 242 . Specifically, the electromagnet 221 drives the magnetic attraction portion 241 to swing repeatedly, so as to drive the push portion 242 to swing repeatedly, and then push the ratchet mechanism 25 to realize the stepwise rotation of the ratchet mechanism 25, thereby driving the push rod 21 to extend Push the injection assembly 1 to complete the injection operation. Optionally, the magnetic attraction part 241 is made of ferromagnetic material. Optionally, the magnetic attraction part 241 is an electromagnet. It should be understood that since the magnetic attraction portion 241 and the electromagnet 221 maintain a preset distance, the magnetic attraction portion 241 of the swing member 24 will not be hindered or interfered by the magnetic poles during the swing process, and the swing range is large, so that the structure covered by the swing portion In order to facilitate the simplified and lightweight design, the self-gravity of the swinging part can be ignored for the driving force of the driving member 22, so that with the different postures of the insulin pump during use, or the posture changes, the driving force of the driving member 22 Small impact. It should be understood that, the greater the current provided by the power supply member 222, the greater the magnetic force of the two magnetic poles on the electromagnet 221, and the faster the swing speed of the magnetic attraction portion 241. It should be understood that the extension area between the two magnetic poles refers to the area where the middle area of the two magnetic poles extends toward the actuator assembly 2 .

As shown in FIG. 3 , in this embodiment, a plurality of limit protrusions 232 extending along the width direction of the support case 23 are provided on the side wall of the support case 23 . The plurality of limit protrusions 232 extend along the support case The length direction of the body 23 is spaced and enclosed to form limiting grooves. The swinging member 24 also includes a limiting hole 243 opened along the thickness direction of the swinging member 24 and corresponding to the limiting groove, and a limiting hole 243 arranged in the limiting hole 243. Block 244, the limit end of the limit block 244 extends into the limit groove for abutting with the limit protrusion 232 during the swing of the swing member 24 to limit the swing range of the swing member 24. Specifically, during the swinging process of the swinging member 24, the limit block 244 swings synchronously. Since the limit end of the limit block 244 protrudes into the limit groove and is limited by the abutment of the limit protrusion 232, it can only be limited in the limit. The swinging range of the swinging member 24 is correspondingly limited, so as to avoid that the swinging range of the swinging member 24 is too large and the pushing portion 242 is separated from the pushing area of the ratchet, which may be blocked and interfered by the ratchet. , to ensure the stable and reliable movement of the magnetic parts. Optionally, the limit slot is arranged along the length direction of the support shell 23, and the length direction of the support shell 23 is the same as the swing direction of the magnetic attraction part 241, so that the limit block 244 is slidably arranged in the limit block along the swing direction. In the groove, the limit block 244 slides in the limit groove to appropriately increase the swing range of the swing piece 24 to prevent the swing range of the swing piece 24 from being too small and the pushing stroke of the pushing portion 242 to be too small, so that the The rotation speed of the ratchet wheel 252 is too slow, thereby affecting the injection speed of the injection assembly 1 . It should be understood that the preset distance can be adaptively adjusted according to the production requirements of the product, as long as the swing of the magnetic attraction part 241 can be realized.

As shown in FIG. 3 , in this embodiment, the end of the support housing 23 away from the magnetic attraction portion 241 is provided with a plurality of limit posts 233 arranged along the height direction of the support housing 23 . The length direction of the housing 23 is arranged at intervals to form a limit gap, and the end of the swing member 24 away from the magnetic attraction portion 241 is provided with a length of the swing member 24 and extends into the limit gap. The limiting portion 245 abuts against the limiting post 233 during the swinging process of the swinging member 24 to limit the swinging range of the swinging member 24 . Specifically, during the swinging process of the oscillating member 24, the limiting portion 245 oscillates synchronously. Since the limiting portion 245 extends into the limiting gap and is limited by the abutment of the limiting post 233, it can only swing within the limiting gap. The swinging range of the swinging member 24 is correspondingly limited, so as to avoid that the swinging range of the swinging member 24 is too large and the pushing portion 242 is separated from the pushing area of the ratchet, which may be blocked by the interference of the ratchet, ensuring that the swinging member 24 is blocked. The movement is stable and reliable.

As shown in FIG. 3 , in this embodiment, the swinging member 24 further includes an elastic member 246 sleeved on the connecting column 231 and used to press the swinging member 24 . Specifically, the elastic member 246 presses the swinging member 24, so that the pushing portion 242 on the swinging member 24 can always be at the same level as a ratchet tooth on the ratchet wheel 252, and thus can always push a ratchet tooth along the direction of the ratchet wheel 252. The step-by-step movement in the tangential direction realizes the step-by-step rotation of the ratchet wheel 252 . Optionally, the elastic member 246 is a compression spring.

As shown in FIG. 4 , in this embodiment, a plurality of ratchet wheels 252 are arranged along the axial direction of the rotating shaft 251 , and the pushing portions 242 are arranged in a one-to-one correspondence with the ratchet wheels 252 . Specifically, the two abutting portions 242 are respectively arranged on opposite sides of the magnetic attracting portion 241 on the magnetic attraction member. During the reciprocating swing of the magnetic attracting portion 241 , the two pushing portions 242 push the two ratchets 252 back and forth in sequence. The ratchet teeth greatly increase the rotation speed of the ratchet wheel 252. It should be understood that when the magnetic attraction part 241 moves in a direction close to one of the magnetic poles, the pushing part 242 close to the magnetic pole pushes against the ratchet teeth on the corresponding ratchet wheel 252, thereby making the ratchet wheel 252 rotate; When the 241 moves toward the other magnetic pole, the pushing portion 242 near the other magnetic pole pushes against the ratchet teeth on the corresponding ratchet wheel 252, thereby making the ratchet wheel 252 rotate. Since the two ratchet wheels 252 rotate synchronously through the rotating shaft 251, That is, one ratchet wheel 252 rotates, and the other ratchet wheel 252 also rotates synchronously. The magnetic attraction part 241 swings back and forth once, the ratchet wheel 252 can be rotated twice, and the rotation speed of the ratchet wheel 252 is greatly increased.

As shown in FIG. 1 , in this embodiment, the energy component 4 includes a charging socket, and the charging member 51 includes a charging base 511 and a charging plug 512 disposed on the charging base 511 for inserting into the charging socket. Specifically, after the injection of the injection assembly 1 is completed, the execution assembly 2 is separated from the injection assembly 1 , and then the charging socket and the charging plug 512 are plugged and matched to charge the energy source assembly 4 . Optionally, the charging member 51 includes a charging cable, and the charging plug 512 is arranged on the movable end of the charging cable.

In this embodiment, the drive reset insulin pump also includes a casing and a base plate detachably connected to the casing. The energy component 4 , the control assembly 3 and the execution assembly 2 are fixedly arranged on the casing, and the injection assembly 1 is fixedly arranged on the base plate. Specifically, after the injection assembly 1 injects the medicinal liquid, the casing and the bottom plate are separated, and then the bottom plate and the injection assembly 1 fixed on the bottom plate are disposed of in a reasonable manner, and the casing and the energy source assembly 4 fixed on the casing are disposed of. , the control component 3 and the execution component 2 are recycled and reused.

In this embodiment, the injection assembly 1 includes a liquid storage assembly and a needle tube assembly. The liquid storage assembly is used to store and provide medicinal liquid for the patient's injection. One end of the liquid storage assembly is connected to the execution assembly 2, and the other end of the liquid storage assembly is connected to the needle tube assembly. , the actuator assembly 2 can deliver the medical liquid in the liquid storage assembly to the needle tube assembly and finally inject the medical liquid into the patient through the needle tube assembly for treatment.

In this embodiment, a waterproof rubber ring for waterproofing is provided at the joint between the casing and the bottom plate, so as to have a good waterproofing effect. Optionally, the liquid storage assembly includes a liquid storage cylinder for holding medicinal liquid and a piston fitted in the liquid storage cylinder. When the piston moves in the liquid storage cylinder, the medicinal liquid in it can be pushed out into the needle tube assembly. .

In this embodiment, the needle tube assembly includes a needle tube, a rubber tube, and a needle tube control device for driving the implantation and withdrawal of the needle in the needle tube. The needle of the needle tube is preferably a stainless steel needle to reduce possible bacterial infection. The liquid component is supplied by the liquid storage component for the needle tube; the rubber tube is sleeved on the outside of the needle tube, and the needle tube can move relative to the rubber tube. When the patient needs to be injected, the needle tube control device controls the needle of the needle tube to stick out of the rubber tube , After the injection is completed, the needle tube control device controls the needle on the needle tube to be re-entered into the rubber tube, so as to reduce the pain caused by the long-term existence of the needle in the body of the patient. Optionally, a patch sheet is provided on the side of the bottom plate that is attached to the patient's body, and the patch sheet is provided with a needle hole for the needle on the needle tube to pass through to perform drug injection on the patient. It avoids the phenomenon that the catheter rubs against the user's body when the long catheter is used, and the long catheter may hang on other objects, which may cause discomfort to the patient.

In this embodiment, the needle tube control device includes a mounting frame, a slider assembly, an inclined surface block assembly, and an elastic assembly, which is installed and erected in the housing, and the elastic assembly includes a screw. The outer side of the screw is rotatably connected to the herringbone arm, and the two arms of the herringbone arm are rotatably connected, and the rotation of the torsion spring can drive the herringbone arm to expand or contract. A second connecting rod is rotatably connected with a connecting rod. The outer end of the second connecting rod is rotatably connected with the sliding part on the slider assembly. The sliding assembly includes a first slider, a second slider and a sliding rail. The outer end is rotatably connected with the first sliding block, and the second connecting rod can drive the first sliding block to slide on the sliding rail of the sliding block assembly. A sloped block assembly passes through the shell, and the sloped block assembly is located at one end inside the shell. A block is connected, the block is located between the first sliding block and the second sliding block, and the block is divided into two use states. The second sliders are pulled apart. At this time, the torsion spring rotates and resets and drives the herringbone arm to stretch during the reset process, thereby pushing the first slider and the second slider to move on the slide rail; the other is when the inclined plane When the block assembly is pressed down, the block pushes the first sliding block to reset, so that the contact position between the block and the first sliding block is a slope fit, which is convenient for the reset of the first sliding block. When the block pushes the first sliding block to reset completely When the block is located between the first slider and the second slider to separate the two, the torsion spring is twisted, and the torsion spring has a tendency to reset and push the first slider to move, which is the next time to push the first slider. The slider stores the force; the first slider is provided with a first conducting groove, the second sliding block is provided with a second conducting groove, the second conducting groove is used to accommodate the rubber hose, and the second sliding block is provided with a fitting The rubber tube is provided with a positioning part protruding from the rubber tube, the positioning part is adapted to the fitting cavity, and the needle tube penetrates into the rubber tube through the positioning part. Preferably, after the injection is completed, the rubber tube remains in the reserved tube on the patient's skin, and the needle tube is retracted into the housing to avoid complications caused by the needle remaining in the patient's body. Specifically, the second slider is far away from the first slider. One end of the block is provided with a blocking hole, and a spring thimble is correspondingly provided on the front cover. After the second slider slides to a certain position, the spring thimble pops out and is inserted into the blocking hole to fix the second slider, so that the hose will not be blocked. Drive to retract, and the first slider is reset and retracted under the contraction of the herringbone arm, and the needle tube is finally retracted into the rubber tube. When the next injection is performed, the first slider is pushed to move the needle through the operation of the button. The tube can be pushed out. Optionally, the energy component 4 can be a button battery and other energy supply components that are convenient for miniaturization, so as to better fit the design points of the present invention and facilitate the overall miniaturization design of the present invention. At the same time, the energy component 4 can also be an external power supply, saving energy. Space occupied by energy components 4.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. A drive reset insulin pump, characterized in that it comprises an injection assembly (1) for performing an injection operation on a patient, an execution assembly (2) for controlling the injection assembly (1) to inject the patient, and an injection assembly (2) for controlling the injection of the patient. A control assembly (3) for working with the execution assembly (2), an energy assembly (4) for supplying electrical energy to the control assembly (3), and a drive reset mechanism detachably connected to the energy assembly (4) and the execution assembly (2) respectively (5), the energy assembly (4), the control assembly (3) and the execution assembly (2) are of an integral structure, and the execution assembly (2) includes a detachable connection with the injection assembly (1) for extending and pushing the injection assembly (1) A push screw (21) for performing an injection operation on a patient, and the drive reset mechanism (5) includes a charging member (51) for detachably connecting with the energy component (4) to supplement electrical energy to the energy component (4). ) and a reset piece (52) for detachably connecting with the actuator assembly (2) to make the push screw rod (21) stretch out and push back and then retract and reset. 2 . The drive reset insulin pump according to claim 1 , wherein the actuator assembly ( 2 ) comprises a drive member ( 22 ), a support housing ( 23 ), and is movably arranged on the support housing ( 23 ) and is movably arranged on the support housing ( 23 ). A swinging member (24) arranged corresponding to the driving member (22), a ratchet mechanism (25) rotatably arranged on the support housing (23) and correspondingly arranged with the swinging member (24), and a ratchet mechanism (25) fixedly arranged in the ratchet mechanism (25) ) and sleeved on the outside of the push screw rod (21) with a screw sleeve (26), the screw sleeve (26) is threadedly connected with the push screw rod (21), and the driving member (22) is used to drive the swing member ( 24) Swing, the ratchet mechanism (25) is used to drive the screw sleeve (26) to rotate, and the screw sleeve (26) is used to drive the pushing screw (21) to move axially through the thread and extend to push or shrink to reset, The swinging member (24) is used to push the ratchet mechanism (25) to rotate in the forward direction to drive the screw sleeve (26) to rotate in the forward direction, thereby driving the pushing screw rod (21) to extend to achieve pushing, and the reset member (52) is used for Removably connected with the push screw (21) and the ratchet mechanism (25) respectively to drive the ratchet mechanism (25) to rotate in the reverse direction, thereby driving the screw sleeve (26) to rotate in the reverse direction, thereby driving the push screw (21) to shrink and recover. Located in the screw sleeve (26). 3. The drive reset insulin pump according to claim 2, characterized in that the ratchet mechanism (25) comprises a rotary rotatably arranged on the support housing (23) and fixedly sleeved outside the screw sleeve (26) A shaft (251), a ratchet wheel (252) rotatably sleeved outside the rotation shaft (251), and a plurality of ratchet teeth arranged in sequence along the circumferential direction of the ratchet wheel (252), the rotation shaft (251) and the reset member (52) Detachable connection. 4. The drive reset insulin pump according to claim 3, wherein the reset member (52) comprises a reset motor (521), is arranged on the output shaft of the reset motor (521) and is detachable from the rotating shaft (251) A connecting sleeve (522) connected in a driving manner and a movable sleeve detachably connected with the pushing screw rod (21) for preventing the circumferential rotation of the pushing screw rod (21). 5. The drive reset insulin pump according to claim 2, wherein the drive member (22) comprises an electromagnet (221) and a power supply member (222) electrically connected to the electromagnet (221), and the electromagnet (221) The power supply member (222) is used to change the magnetism and direction of the two magnetic poles according to a preset frequency to drive the swing member (24) to swing back and forth. 6 . The drive reset insulin pump according to claim 5 , wherein the support housing ( 23 ) comprises a connecting column ( 231 ) arranged along the height direction of the support housing ( 23 ), and the swing piece ( 24 ) is rotatable. 7 . The oscillating member (24) includes an extension area arranged between the two magnetic poles and maintaining a preset distance from the electromagnet (221) and used for reciprocating swinging with the change of the magnetic properties of the two magnetic poles. The magnetic attraction part (241) and the abutting part (242) for pushing the ratchet mechanism (25) to rotate with the reciprocating swing of the magnetic attraction part (241). 7 . The drive reset insulin pump according to claim 6 , wherein a plurality of limit protrusions ( 232), a plurality of limit protrusions (232) are arranged at intervals along the length direction of the support housing (23) to form limit grooves, and the swinging member (24) further includes openings along the thickness direction of the swinging member (24) and connecting with it. The limit slot corresponds to a limit hole (243) arranged in the limit hole (243) and a limit block (244) arranged in the limit hole (243), and a limit end of the limit block (244) extends into the limit slot for swinging The swinging member (24) is in contact with the limiting protrusion (232) during the swinging process to limit the swinging range of the swinging member (24). 8. The drive reset insulin pump according to claim 6, characterized in that, the end of the support housing (23) away from the magnetic attraction part (241) is provided with a plurality of Limiting columns (233), a plurality of limiting columns (233) are arranged at intervals along the length direction of the support housing (23) to form a limiting gap, and the end of the swinging member (24) that is away from the magnetic attraction portion (241) The swinging member (24) is provided with an extension formed along the length direction of the swinging member (24) and extending into the limiting gap for abutting with the limiting column (233) during the swinging process of the swinging member (24) to limit the swinging of the swinging member (24). Range limit (245). 9 . The drive reset insulin pump according to claim 6 , wherein the swing member ( 24 ) further comprises an elastic member ( 246 ) sleeved on the connecting column ( 231 ) and used to press against the swing member ( 24 ). 10 . . 10. The drive reset insulin pump according to any one of claims 1-9, characterized in that the energy component (4) comprises a charging socket, the charging member (51) comprises a charging base (511) and is arranged on the charging base ( 511) on the charging plug (512) for inserting into the charging socket.

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