CN211835630U - Have subassembly and autonomic automatically controlled formula pump that relieves pain of imbibition and notes liquid concurrently - Google Patents

Abstract

The utility model discloses a have subassembly of imbibition and notes liquid concurrently, include: the liquid absorbing part comprises a liquid absorbing tank and a liquid absorbing pipe, wherein the top of the liquid absorbing tank is provided with a liquid inlet and a liquid outlet; simultaneously, the autonomous electric control type pain relieving pump comprises a component with liquid suction and liquid injection functions, and further comprises a display device, an input device, a controller component and a power supply component, and solves the problems that the existing pain relieving pump needs to continuously take medicines, cannot perform intermittent administration to cause titration difficulty, and cannot firstly give a large safe load dosage when explosive pain occurs so that a patient can rapidly eliminate the pain and can ensure the safety.

Description

Have subassembly and autonomic automatically controlled formula pump that relieves pain of imbibition and notes liquid concurrently

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a have subassembly and the automatically controlled formula pump that relieves pain of imbibition and notes liquid concurrently.

Background

In the course of cancer treatment, pain relief and palliative treatment are of great significance, and strong opioids are the main drugs for treating cancer pain. Before strong opioid analgesics are used, the NCCN guidelines recommend fast morphine titration, and morphine titration includes two methods, i.e., oral immediate release morphine titration and intravenous morphine titration, and studies show that intravenous morphine titration has short completion time and few adverse reactions, and is more suitable for clinical treatment, and PCA (patient controlled analgesia) is an important analgesic means in non-oral analgesic administration. PCA is a pain treatment technology which is preset by medical staff according to the physical condition and pain degree of a patient and then is self-managed by the patient, and has the following advantages: during the treatment period, the peak blood concentration of the analgesic is low, the fluctuation of the blood concentration is small, the occurrence rate of respiratory depression is low, and the side effect of over-sedation during the treatment process is reduced; the analgesic effect is good; can overcome individual difference of pharmacokinetics and pharmacodynamics of analgesic, and can realize administration according to needs; the time for waiting for the medical staff to handle when the patient is painful is reduced; satisfactory results can be achieved at lower analgesic doses; reducing the workload of medical care personnel.

The PCA device is a new analgesic drug delivery device that the patient wears a controller through which a single dose of analgesic drug is injected into the body when pain is perceived, thereby achieving the goal of analgesia. The existing analgesic pump generally considers a mechanical analgesic pump, and the following two administration modes are mainly adopted: the pure PCA mode is that the patient is completely self-controlled, and when the patient is painful, the patient presses a control device of the pain relieving pump to give a single dose; the background infusion + bolus regimen, i.e., a patient who is on pain increases a bolus dose based on a continuous infusion of a drug. The disadvantages of the two existing methods are that: continuous medication is required, and the medication can not be carried out at certain time intervals, so that the medicine can not be well converted into oral sustained-release tablets to relieve pain after titration; and in order to maintain a certain blood concentration and not produce excessive sedation, the dosage of single administration, namely the dosage of the drug added when the pain of the patient is not eliminated or the pain recurs, must be smaller, so that the patient can not firstly give a larger safe load dosage according to the titration principle of the cancer pain relief during the pain so as to quickly eliminate the pain and ensure the safety of the patient.

SUMMERY OF THE UTILITY MODEL

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract of the specification and the title of the application to avoid obscuring the purpose of this section, the abstract of the specification and the title of the application, and such simplifications or omissions are not intended to limit the scope of the invention.

In view of the above-mentioned problems of the existing pain-relieving pump, the utility model is provided.

Therefore, the utility model provides a technical problem be: the problems that the existing pain-relieving pump needs to continuously take medicine, the titration is difficult due to the fact that the medicine can not be taken at intervals, and a large safe load medicine dose can not be given firstly when the explosive pain occurs, so that the pain of a patient can be rapidly eliminated, and the safety can be ensured are solved.

In order to solve the technical problem, the utility model provides a following technical scheme: a combination pipetting and injection assembly comprising: the liquid suction piece comprises a liquid medicine pool and a liquid suction pipe, wherein the top of the liquid medicine pool is provided with a liquid inlet and a liquid outlet, and the liquid suction pipe is communicated with the liquid inlet; annotate the liquid spare, annotate the liquid spare include with the notes liquid pipe of liquid outlet intercommunication.

As have a preferred scheme of subassembly of imbibition and notes liquid concurrently, wherein: still include pressure driving spare, pressure driving spare includes cylindric sealed shell, be provided with along the direction that is on a parallel with the bottom surface in the sealed shell and follow its inside wall extending direction free gliding promotion piece, it will to promote the piece sealed shell divide into upper and lower two, and upper portion forms the liquid medicine pond, just go into the liquid mouth with the liquid outlet set up in the sealed shell top.

As have a preferred scheme of subassembly of imbibition and notes liquid concurrently, wherein: the liquid inlet and the liquid outlet are respectively provided with a liquid inlet one-way valve and a liquid outlet one-way valve, the liquid suction pipe is communicated with the liquid inlet through the liquid inlet one-way valve, and the liquid injection pipe is communicated with the liquid outlet through the liquid outlet one-way valve.

As have a preferred scheme of subassembly of imbibition and notes liquid concurrently, wherein: still include motor drive spare, motor drive spare is including the column screw rod that is provided with the external screw thread, sealed shell upper portion terminal surface is provided with the recess, sealed shell lower part reaches it is provided with first through-hole and second through-hole respectively to promote the piece, the screw rod passes first through-hole with the second through-hole, and the embedding of upper end the recess, lower extreme connection polished rod extend first through-hole with set up in the gear train of sealed shell below is connected, the screw rod is on a parallel with the sealed shell medial surface sets up, it is provided with the internal thread to promote the piece inside, with screw rod threaded connection, the gear train with set up in the driving motor of sealed shell one side is connected.

As have a preferred scheme of subassembly of imbibition and notes liquid concurrently, wherein: the edge of the pushing block is symmetrically provided with flanges, two sliding grooves are symmetrically arranged on the inner side surface of the sealing shell along the screw rod direction, and the flanges can freely slide along the sliding grooves in the vertical direction.

In order to solve the technical problem, the utility model discloses still provide following technical scheme: an autonomous electrically controlled pain-relieving pump comprising the assembly for both imbibing and infusing as described above, further comprising a display device, an input device, a controller assembly and a power supply assembly.

As an optimized scheme of autonomic automatically controlled formula pump that relieves pain, wherein: the power supply assembly comprises a power supply and a power supply management module, and the power supply is controlled by the power supply management module; the input device comprises a power supply confirmation key, an exhaust setting key, an upturning adjusting key, a downturning adjusting key, an automatic control key and a liquid suction key; the controller assembly comprises a timing device, an infusion dosage control device, an infusion time limit device and an error alarm device; the display device comprises basic analgesic information, automatic control analgesic information of explosive pain and an alarm device, wherein the basic analgesic information comprises single drug infusion dosage, time interval and infusion time limit, and the automatic control analgesic information of explosive pain comprises single analgesic dosage of explosive pain, automatic control minimum time interval of secondary drug administration and automatic control total analgesic frequency calculated according to the basic dosage.

As an optimized scheme of autonomic automatically controlled formula pump that relieves pain, wherein: the controller assembly is connected with the display device, the motor driving piece and the power supply assembly, collects the instruction of the input device, displays the instruction on the display device and controls the motor driving piece to operate.

As an optimized scheme of autonomic automatically controlled formula pump that relieves pain, wherein: the input device is a touch screen keyboard, and the display device is a liquid crystal display screen.

The utility model has the advantages that: the utility model improves the existing small-dose continuous pain relief as the regular quantitative infusion, which is beneficial to converting into oral sustained-release tablets to relieve pain according to the proportion after the titration is finished, quickly completes the titration time of moderate and severe cancer pain and improves the treatment quality of patients; for the explosive pain, a larger safe load medicament quantity is firstly given according to the basic dose and the explosive cancer pain relieving titration principle, so that the pain of a patient can be rapidly eliminated and the safety can be ensured; simultaneously the utility model discloses non-disposable device, repeatedly usable after the disinfection has practiced thrift patient's medical spending, has alleviateed medical insurance's pressure, is favorable to using widely.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor. Wherein:

fig. 1 is an overall schematic view of the appearance of the assembly with both liquid suction and injection provided by the present invention;

FIG. 2 is a front view of the assembly for both liquid suction and injection and a sectional view in the directions A-A and B-B;

fig. 3 is a schematic view of an outline of a pushing block of the assembly for both liquid suction and injection provided by the present invention;

fig. 4 is an overall schematic view of the appearance of the autonomous electronically controlled pain relieving pump provided by the present invention;

fig. 5 is an operation flow chart of the autonomous electronically controlled pain relieving pump provided by the present invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person having ordinary skill in the art without creative efforts shall belong to the protection scope of the present invention.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the specific details set forth herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Furthermore, the references herein to "one embodiment" or "an embodiment" refer to a particular feature, structure, or characteristic that may be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

The present invention will be described in detail with reference to the drawings, and in order to describe the embodiments of the present invention in detail, the cross-sectional view showing the structure of the device will not be enlarged partially according to the general scale, and the drawings are only examples, which should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.

Meanwhile, in the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper, lower, inner and outer" and the like are based on the directions or positional relationships shown in the drawings, and are only for convenience of description of the present invention and simplification of description, but do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention. Furthermore, the terms first, second, or third are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The terms "mounted, connected and connected" in the present application are to be understood broadly, unless otherwise explicitly stated or limited, for example: can be fixedly connected, detachably connected or integrally connected; they may be mechanically, electrically, or directly connected, or indirectly connected through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

Referring to fig. 1, a first embodiment of the assembly for both liquid suction and injection provided by the present invention is shown: a combination pipetting and injection assembly comprising: the liquid absorbing part 100 comprises a liquid inlet and a liquid outlet, the liquid absorbing part 100 comprises a liquid medicine pool 101 and a liquid suction pipe 102, the top of the liquid medicine pool is provided with the liquid inlet and the liquid outlet, and the liquid suction pipe 102 is communicated with the liquid inlet; the liquid injection member 200 includes a liquid injection pipe 201 communicating with the liquid outlet.

Wherein, the liquid absorbing part 100 absorbs morphine injection into the liquid medicine pool 101 through the liquid absorbing pipe 102; the liquid injection piece 200 injects the liquid medicine stored in the liquid medicine pool 101 into an external human body injection device through the liquid injection pipe 201, and finally injects the liquid medicine into the body of a patient to play a role in relieving pain.

Example 2

Referring to fig. 1-3, a second embodiment of the assembly for both liquid suction and injection according to the present invention is different from the first embodiment in that: the device further comprises a pressure driving piece 300, wherein the pressure driving piece 300 comprises a cylindrical sealing shell 301, a pushing block 302 capable of freely sliding along the extending direction of the inner side wall of the sealing shell 301 is arranged in the sealing shell 301 along the direction parallel to the bottom surface, the sealing shell 301 is divided into an upper part and a lower part by the pushing block 302, a liquid medicine pool 101 is formed at the upper part, and a liquid inlet and a liquid outlet are formed in the top of the sealing shell 301; a liquid inlet check valve 303 and a liquid outlet check valve 304 are respectively arranged on the liquid inlet and the liquid outlet, the liquid suction pipe 102 is communicated with the liquid inlet through the liquid inlet check valve 303, and the liquid injection pipe 201 is communicated with the liquid outlet through the liquid outlet check valve 304; the sealing device further comprises a motor driving part 400, the motor driving part 400 comprises a columnar screw 401 provided with external threads, a groove is formed in the end face of the upper portion of the sealing shell 301, a first through hole and a second through hole are formed in the lower portion of the sealing shell 301 and the pushing block 302 respectively, the screw 401 penetrates through the first through hole and the second through hole, the upper end of the screw is embedded into the groove, the lower end of the screw 401 is connected with the polish rod 402 and extends out of the first through hole to be connected with a gear set 403 arranged below the sealing shell 301, the screw 401 is arranged in parallel to the inner side face of the sealing shell 301, internal threads are formed in the pushing block 302 and are in threaded connection with; and the edge of the pushing block 302 is symmetrically provided with a flange 302a, the inner side surface of the sealing shell 301 is symmetrically provided with two sliding grooves 301a along the direction of the screw 401, and the flange 302a can freely slide along the sliding grooves 301a in the vertical direction.

Furthermore, the pressure driving member 300 provides the support for the liquid absorbing member 100 and the liquid injecting member 200 to realize the assisting power of the liquid absorbing and injecting function, due to the sealing arrangement of the sealing shell 301, when the push block 302 is moved downwards in the direction of extension of its inner side wall, so that the volume of the cavity containing the liquid medicine on the upper layer of the sealing shell 301 is increased and negative pressure is formed, at the moment, the liquid outlet is closed, after the liquid inlet is opened, with the intervention of pressure, the pipette 102 can autonomously suck the liquid medicine from the outside into the liquid medicine pool 101, when the liquid medicine is stored in the liquid medicine pool 101, when the pushing block 302 moves upwards along the extending direction of the inner side wall, so that the volume of the cavity containing the liquid medicine on the upper layer of the sealing shell 301 is reduced and positive pressure is formed, at the moment, the liquid outlet is opened, after the liquid inlet is closed, with the intervention of pressure, the liquid injection tube 201 can suck the stored liquid medicine from the liquid medicine pool 101 into the external human body injection device.

Furthermore, a liquid inlet check valve 303 and a liquid outlet check valve 304 are respectively arranged at the liquid inlet and the liquid outlet, wherein the liquid inlet check valve 303 only allows the liquid medicine to flow into the liquid medicine tank 101, the liquid outlet check valve 304 only allows the liquid medicine to flow out of the liquid medicine tank 101, the check valves are automatically opened and closed under corresponding conditions through circuit control, and the independent and smooth operation of the pressure driving member 300 is ensured.

And in consideration of the automation of the mechanical device, a motor driver 400 is provided to cooperate with the pressure driver 300 to realize the automatic operation of the liquid absorbing member 100 and the liquid injecting member 200. Wherein, the recess that the external screw thread screw rod 401 that motor drive 400 set up seamlessly in series connection sealed shell 301 upper portion terminal surface in proper order set up and sealed shell 301 lower part and promote the first through-hole and the second through-hole that piece 302 set up respectively, can realize rotating, and owing to promote the inside internal thread that is provided with of piece 302, with screw rod 401 threaded connection, make screw rod 401 drive when realizing self original place rotation and promote piece 302 and realize the top and bottom spiral rotation on screw rod 401, finally realize the pressure variation in the pharmaceutical industry pond 101, controlling means imbibition and notes liquid. It should be noted that: the polish rod 402 connected with the lower end of the screw 401 extends out of a first through hole to be connected with the gear set 403 arranged below the sealing shell 301, the gear set 403 is connected with the driving motor 404 arranged on one side of the sealing shell 301, the driving motor 404 operates to drive the gear set 403 to operate, the synchronous rotation of the screw 401 fixedly connected with the polish rod 402 is driven by the synchronous rotation of the polish rod 402, the driving motor 404 rotates positively, the pushing block 302 moves downwards, the driving motor 404 rotates reversely, the pushing block 302 moves upwards, the moving speed of the pushing block 302 is adjusted by the output rotating speed of the driving motor 404, and the difficulty of realizing complete sealing performance is higher and the cost is higher if the lower parts of the screw 401 and the sealing shell 301 are in threaded connection, so that the lower end of the screw 401 is designed into the form of the polish rod, the process is simple and effective, and the height of the liquid medicine pool 101 is not more than, to ensure the smooth operation of the device; and the edge of the pushing block 302 is symmetrically provided with a flange 302a, the inner side surface of the sealing shell 301 is symmetrically provided with two sliding grooves 301a along the direction of the screw rod 401, the flange 302a can freely slide along the sliding grooves 301a in the vertical direction, in order to reduce the damage of the precision instruments of the screw rod 401 and the pushing rod 302 and improve the practical period, the ball screw rod connection in the prior art is designed through the connection between the pushing block 302 and the screw rod 401, and the rotary motion of the pushing block 302 is converted into linear motion.

The structure thereof was identical to that of example 1.

Example 3

Referring to fig. 4 and 5, a first embodiment of the autonomous electrically controlled pain relieving pump of the present invention is shown: an autonomous electrically controlled pain-relieving pump, comprising the assembly for both imbibing and infusing as in the above examples 1 and 2, further comprising a display device 500, an input device 600, a controller assembly 700 and a power supply assembly 800; the power supply assembly 800 comprises a power supply 801 and a power supply management module 802, the power supply 801 is controlled by the power supply management module 802, the input device 600 comprises a power supply confirmation key 601, an exhaust setting key 602, an upturning adjustment key 603, a downturning adjustment key 604, an automatic control key 605 and a liquid suction key 606, the controller assembly 700 comprises a timing device, an infusion dose control device, an infusion time limit device and an error alarm device, the display device 500 comprises basic analgesic information, explosive pain automatic control analgesic information and an alarm device, wherein the basic analgesic information comprises a medicament single infusion dose 501, a time interval 502 and an infusion time limit 503, and the explosive pain automatic control analgesic information comprises an explosive pain single analgesic dose 504, a secondary automatic control medicament use minimum time interval 505 and an automatic control analgesic total number 506 which are calculated according to the basic dose; the controller assembly 700 is connected to the display device 500, the motor driver 400 and the power supply assembly 800, and the controller assembly 700 collects the command of the input device 600, displays the command on the display device 500, and controls the motor driver 400 to operate; the input device 600 is a touch panel keyboard, and the display device 500 is a liquid crystal display.

Wherein, the power source 801 is controlled by the power management module 802 to supply power to each component; a power supply confirmation key 601 included in an input device 600 of a touch screen keyboard realizes the turning on and off of a power supply, an exhaust setting key 602 realizes the exhaustion of air possibly remained in a liquid medicine pool 101 after liquid absorption of a liquid absorption piece 100, an upturning adjusting key 603 and a downturning adjusting key 604 realize the effect increase and decrease of each function, an automatic control key 605 realizes the selection of each function in the device when an infusion specification is formulated in the early period, the injection control of liquid medicine is realized when the liquid medicine is infused in the later period, and a liquid absorption key 606 realizes the operation of the liquid absorption piece 100; the liquid crystal display device 500 displays the following information: a drug single infusion dose 501, a time interval 502, an infusion time limit 503, a single analgesic dose for blast pain 504 calculated from a base dose, a re-self-controlled minimum time interval 505 for medication, a total number of self-controlled analgesia 506, and an alarm message; the controller assembly 700 includes a timing device, an infusion dose control device, an infusion timing device, and a false alarm device. The controller assembly 700 is connected to the display device 500, the motor driver 400 and the power supply assembly 800, and the controller assembly 700 collects commands from the input device 600, displays the commands on the display device 500, and controls the motor driver 400 to operate.

Specifically, the medical staff can select various functions in the device through the self-control key 605 in the input device 600 and the touch screen according to the actual situation of the patient, and can select: the timing function, the infusion dose selection function and the infusion time limit function can display corresponding numerical values in the liquid crystal display device 500 after the corresponding functions are selected, increase and decrease of the effects of the functions are realized according to the upturning adjusting key 603 and the downturning adjusting key 604 in the input device 600, and finally the operation of the motor driving part 400 is realized through the controller assembly 700, wherein the alarm function automatically alarms through the patient or the machine.

And (3) working process: the power source 801 is turned on, and the medical staff selects various functions in the device through the self-control keys 605 in the input device 600 according to the actual conditions of the patient through the touch screen, so that the selection can be as follows: the timing function, the infusion dose selection function and the infusion time limit function can display corresponding numerical values in the liquid crystal display device 500 after the corresponding functions are selected, wherein the numerical values comprise a medicament single infusion dose 501, a time interval 502, an infusion time limit 503, an explosive pain single analgesic dose 504 calculated according to a basic dose, a self-control medicament use minimum time interval 505 and a self-control total analgesic frequency 506 again, the increase and decrease of the effects of each function are realized according to an upturning adjusting key 603 and a downturning adjusting key 604 in the input device 600, after the infusion parameters are set, the device starts to operate, the driving motor 404 rotates forwards, the pushing block 302 moves downwards to realize the formation of negative pressure in the liquid medicine pool 101, external liquid medicine is sucked into the liquid medicine pool 101, the air exhaust setting key 602 is opened, the controller assembly 700 controls the driving motor 404 to rotate backwards to push the pushing block 302 to move upwards to form positive pressure, air possibly remaining in the liquid medicine pool 101 in the liquid sucking process is exhausted to the greatest extent, when the liquid injection pipe 201 has liquid medicine overflow, the air in the liquid medicine pool 101 is proved to be exhausted, the liquid injection pipe 201 is installed in the injection device, when a patient feels pain in the treatment process, the automatic control key 605 is pressed to realize single-dose infusion, the device records specific time information and infusion information, when the patient feels the explosive pain, the patient continuously presses the automatic control key 605 twice, the device firstly gives a larger safe load medicament quantity according to the explosive cancer pain relieving titration principle to quickly eliminate the pain and ensure the safety of the patient, and records specific information, so that the morphine titration is realized.

It should be noted that: the circuit control in the device belongs to the prior common technology, and the automatic operation of the device is realized through the prior technology.

It should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims (9)

1. An assembly for both aspirating and injecting liquids, comprising:

the liquid absorbing piece (100) comprises a liquid medicine pool (101) with a liquid inlet and a liquid outlet at the top and a liquid absorbing pipe (102), wherein the liquid absorbing pipe (102) is communicated with the liquid inlet;

annotate liquid spare (200), annotate liquid spare (200) including with annotate liquid pipe (201) of liquid outlet intercommunication.

2. The assembly for both liquid suction and injection according to claim 1, further comprising a pressure driving member (300), wherein the pressure driving member (300) comprises a cylindrical sealing shell (301), a pushing block (302) capable of freely sliding along the extending direction of the inner side wall of the sealing shell is arranged in the sealing shell (301) along a direction parallel to the bottom surface, the pushing block (302) divides the sealing shell (301) into an upper portion and a lower portion, the upper portion forms the liquid medicine pool (101), and the liquid inlet and the liquid outlet are arranged at the top of the sealing shell (301).

3. The assembly for both liquid suction and liquid injection according to claim 2, wherein the liquid inlet and the liquid outlet are respectively provided with a liquid inlet check valve (303) and a liquid outlet check valve (304), the liquid suction pipe (102) is communicated with the liquid inlet through the liquid inlet check valve (303), and the liquid injection pipe (201) is communicated with the liquid outlet through the liquid outlet check valve (304).

4. The assembly of both pipetting and injection as recited in claim 2 or 3 further comprising a motor drive (400), the motor driving part (400) comprises a columnar screw rod (401) provided with an external thread, a groove is arranged on the end face of the upper part of the sealing shell (301), a first through hole and a second through hole are respectively arranged on the lower part of the sealing shell (301) and the pushing block (302), the screw rod (401) passes through the first through hole and the second through hole, the upper end of the sealing shell is embedded into the groove, the lower end of the sealing shell is connected with a polish rod (402) and extends out of the first through hole to be connected with a gear set (403) arranged below the sealing shell (301), the screw rod (401) is arranged in parallel with the inner side surface of the sealing shell (301), the pushing block (302) is internally provided with internal threads, and the gear set (403) is connected with a driving motor (404) arranged on one side of the sealing shell (301).

5. The assembly for both liquid suction and liquid injection according to claim 4, wherein the pushing block (302) has flanges (302a) symmetrically disposed on its edge, and the sealing shell (301) has two sliding grooves (301a) symmetrically disposed on its inner side along the direction of the screw (401), and the flanges (302a) can freely slide along the sliding grooves (301a) in the vertical direction.

6. An autonomous, electronically controlled analgesic pump comprising the combination imbibing and infusing pump of claim 5, further comprising a display device (500), an input device (600), a controller assembly (700), and a power supply assembly (800).

7. The autonomous, electronically controlled analgesic pump of claim 6,

the power supply assembly (800) comprises a power supply (801) and a power management module (802), the power supply (801) being controlled by the power management module (802);

the input device (600) comprises a power supply confirmation key (601), an exhaust setting key (602), an up-turning adjusting key (603), a down-turning adjusting key (604), an automatic control key (605) and a liquid suction key (606);

the controller assembly (700) comprises a timing device, an infusion dosage control device, an infusion time limit device and an error alarm device;

the display device (500) comprises basic analgesic information, automatic control analgesic information of outbreak pain and an alarm device, wherein the basic analgesic information comprises a single drug infusion dose (501), a time interval (502) and an infusion time limit (503), and the automatic control analgesic information of the outbreak pain comprises a single analgesic dose (504) of the outbreak pain calculated according to the basic dose, a minimum time interval (505) of automatic controlled drug administration and a total automatic control analgesic frequency (506).

8. The autonomous, electronically controlled analgesic pump according to claim 7, characterized in that said controller assembly (700) is connected to said display device (500), said motor drive (400) and said power supply assembly (800), and said controller assembly (700) collects commands from said input device (600), displays them on said display device (500), and controls the operation of said motor drive (400).

9. The autonomous, electronically controlled pain-relieving pump according to any of claims 6-8, characterized in that said input device (600) is a touch screen keyboard and said display device (500) is a liquid crystal display.

Images