CN114712617B - Infusion pump and assembly method thereof - Google Patents

Infusion pump and assembly method thereof Download PDF

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Publication number
CN114712617B
CN114712617B CN202210360312.8A CN202210360312A CN114712617B CN 114712617 B CN114712617 B CN 114712617B CN 202210360312 A CN202210360312 A CN 202210360312A CN 114712617 B CN114712617 B CN 114712617B
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China
Prior art keywords
infusion pump
pump body
storage device
liquid storage
shell
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CN202210360312.8A
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Chinese (zh)
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CN114712617A (en
Inventor
周贵
宋哲
陈宁宁
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Weitai Medical Device Hangzhou Co ltd
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Weitai Medical Device Hangzhou Co ltd
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Priority to CN202210360312.8A priority Critical patent/CN114712617B/en
Publication of CN114712617A publication Critical patent/CN114712617A/en
Priority to PCT/CN2023/086805 priority patent/WO2023193782A1/en
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Publication of CN114712617B publication Critical patent/CN114712617B/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142—Pressure infusion, e.g. using pumps
    • A61M5/145—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
    • A61M5/1452—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P21/00—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
    • H02K5/225—Terminal boxes or connection arrangements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3331—Pressure; Flow
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2207/00—Methods of manufacture, assembly or production

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Power Engineering (AREA)
  • Biomedical Technology (AREA)
  • Vascular Medicine (AREA)
  • Anesthesiology (AREA)
  • Mechanical Engineering (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

The invention discloses an infusion pump, which comprises an infusion pump body and a liquid reservoir, wherein the infusion pump body comprises an infusion pump upper shell component and an infusion pump lower shell component, and the infusion pump comprises: a sealing element is arranged between the upper infusion pump shell component and the lower infusion pump shell component; the upper shell and the lower shell of the infusion pump can be integrally disassembled, so that the battery can be conveniently replaced or maintained; the pump shell is internally provided with a gear box assembly, a transmission assembly, a circuit board assembly and a battery assembly.

Description

Infusion pump and assembly method thereof
Technical Field
The invention relates to the technical field of medical equipment, in particular to an infusion pump and an assembly method thereof.
Disclosure of Invention
The invention provides an infusion pump which is produced in a modularized manner, is convenient to mount and dismount and has excellent waterproof performance.
The invention adopts the following technical scheme: an infusion pump comprising an infusion pump body and a reservoir, the infusion pump body comprising an infusion pump upper housing assembly and an infusion pump lower housing assembly, wherein: a sealing element is arranged between the upper infusion pump shell component and the lower infusion pump shell component; the upper shell component of the infusion pump is connected with the lower shell component of the infusion pump through a detachable connecting structure.
Optionally, the sealing element is a first sealing ring; the infusion pump upper shell component and the infusion pump lower shell component are respectively provided with an infusion pump upper shell and an infusion pump lower shell, and the first sealing ring is positioned on the butt joint surface of the infusion pump lower shell and the infusion pump upper shell; the lower shell of the infusion pump is connected with the upper shell of the infusion pump through screws.
Optionally, the reservoir and the infusion pump body are L-shaped as a whole; the side is equipped with the guide rail of perpendicular to the high top surface of reservoir in the reservoir, the side is equipped with the track of perpendicular to the infusion pump body bottom surface in the infusion pump body, the guide rail with the mutual interlock of track to make the two can relative movement.
Optionally, the high top surface of the infusion pump body is provided with a clamping hook, and the low top surface of the liquid storage device is provided with a bayonet, wherein: the clamping hook is opposite to the bayonet; the inner side of the bayonet is provided with a bayonet lock which is used for being clamped with the clamping hook, and the bayonet lock is connected with a side push button arranged on the shell of the liquid storage device.
Optionally, the infusion pump upper housing assembly further comprises an antenna, a buzzer, a printed circuit board, a rechargeable battery, a gearbox assembly and a transmission assembly, wherein: the upper shell of the infusion pump is connected with the antenna, the printed circuit board, the rechargeable battery, the gear box assembly and the transmission assembly; the buzzer is arranged on the printed circuit board.
Optionally, the transmission assembly includes a sleeve, a screw, a pressure sensor, a nut push rod, a contact switch, wherein: the sleeve is positioned on the upper shell of the infusion pump; a nut push rod is arranged in the sleeve, a screw rod is positioned at the center of the nut push rod, and the screw rod is in threaded connection with the nut push rod; the gear box component is connected with the screw rod; the bottom of the screw rod is provided with a pressure sensor; the bottom of the stroke of the nut push rod is provided with a contact switch.
Optionally, a piston is arranged in the liquid storage device, and the infusion needle is connected with a cavity at the upper part of the piston through a pipeline; the piston is opposite to the nut push rod and is arranged at the top of the nut push rod.
Optionally, be equipped with waterproof ventilated membrane, vibrating motor, first connecting cap, second connecting cap, first spring needle connector, second spring needle connector, third spring needle connector, connector briquetting, restart switch on the infusion pump lower casing, wherein: the vibration motor is connected with the first connecting cap and the second connecting cap through wires respectively; the first connecting cap and the second connecting cap are respectively sleeved on the second spring needle connector and the third spring needle connector.
Optionally, the first spring pin connector, the first connection cap, and the second connection cap are respectively abutted with the printed circuit board.
Optionally, the gear box assembly comprises a motor and a reduction gear set, and the reduction gear set is connected with the screw rod.
Optionally, the gear reduction ratio of the reduction gear set is between 90 and 110, and the screw rod is between M2 and M3.
The invention also discloses an assembly method of the infusion pump, which is applied to the infusion pump, and aligns and buckles the track of the infusion pump body and the guide rail of the liquid storage device to push the track and the guide rail towards each other; and when the infusion pump is fast to the bottom, the clamping hook on the infusion pump body is buckled with the clamping pin of the liquid reservoir, and the liquid reservoir is installed.
Optionally, the assembly method comprises the step of spring needle connector connection: the step of spring needle connector connection specifically comprises: the first connecting cap and the second connecting cap are welded together with an outgoing line terminal of the vibration motor through a wire; sticking a vibration motor to a lower shell of the infusion pump; then the first connecting cap and the second connecting cap are respectively sleeved on the spring needle connector; the lower shell of the infusion pump and the upper shell of the infusion pump are connected by adopting screws; the first spring needle connector, the first connecting cap and the second connecting cap are respectively abutted with a printed circuit board of the upper shell component of the infusion pump.
According to the technical scheme of the invention, the infusion pump body comprises an infusion pump upper shell component and an infusion pump lower shell component, and a sealing piece is arranged between the infusion pump upper shell component and the infusion pump lower shell component; the upper shell component of the infusion pump is connected with the lower shell component of the infusion pump through a detachable connection structure, so that the battery is more convenient to detach and repair or replace.
According to the technical scheme of the invention, the vibration motor is respectively connected with the first connecting cap and the second connecting cap through wires; the first connecting cap and the second connecting cap are respectively sleeved on the spring needle connector. The first spring needle connector, the first connecting cap and the second connecting cap are respectively abutted with the printed circuit board. The invention adopts modularized assembly, the vibration motor is connected with the printed circuit board of the upper shell component of the infusion pump through the spring needle connector, so that the assembly is more convenient, the waterproof performance is excellent, and the IPX8 can be prevented from being water.
The upper shell and the lower shell of the infusion pump can be integrally disassembled, and the battery can be conveniently replaced or maintained.
Drawings
For purposes of illustration and not limitation, the invention will now be described in accordance with its preferred embodiments, particularly with reference to the accompanying drawings, in which:
FIG. 1 is a schematic diagram of an infusion pump;
FIG. 2 is an exploded view of an infusion pump according to an embodiment of the present invention;
FIG. 3 is a front view of an infusion pump according to an embodiment of the present invention;
FIG. 4 is a rear view of an infusion pump according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of the structure of a reservoir according to an embodiment of the present invention;
FIG. 6 is a schematic view of the structure of an infusion pump body according to an embodiment of the present invention;
FIG. 7 is a schematic illustration of a snap-fit connection of a reservoir to an infusion pump according to an embodiment of the present invention;
FIG. 8 is a schematic structural view of a gearbox assembly of an embodiment of the present invention;
FIG. 9 is a schematic structural view of an infusion pump lower housing assembly according to an embodiment of the present invention;
FIG. 10 is a schematic structural view of an infusion pump upper housing assembly according to an embodiment of the present invention;
FIG. 11 is an exploded view of an infusion pump upper housing assembly according to an embodiment of the present invention;
FIG. 12 is a schematic view of the drive mechanism in the upper housing assembly of the infusion pump in accordance with the embodiments of the present invention;
FIG. 13 is a schematic view of the transmission mechanism of an embodiment of the present invention;
fig. 14 is a schematic view showing a structure in which a connection cap and a pogo pin connector of the embodiment of the present invention are abutted against a printed circuit board.
In the figure, 1-the upper housing of the infusion pump; a 2-antenna; 3-a printed circuit board; 4-a rechargeable battery; a 5-gearbox assembly; 51-a motor; 52-a reduction gear set; 6-vibrating motor; 7-a waterproof breathable film; 8-assembling screws; 9-an infusion pump lower housing; 10-connector compacts; 11-a piston; 12-a reservoir; 13-a buzzer; 14-track; 15-a guide rail; 16-clamping hooks; 17-a first sealing ring; 18-a first connection cap; 19-a second connection cap; 20-a first spring pin connector; 21-a second spring pin connector; 22-a third spring pin connector; 24-sleeve; 25-a second sealing ring; 26-nut push rod; 27-a screw rod; 28-contact switch; 29-a buckle; 30-a pressure sensor; 31-exhaust port; 32-restarting the switch; 40-reservoir; 50-infusing a pump body; 111-reservoir bottom; 112-a first L-shaped side of the reservoir; 113-reservoir long sides; 114-a second L-shaped side of the reservoir; 115-reservoir Gao Dingmian; 116-sides in the reservoir; 117-reservoir low top surface; 118—reservoir short side; 121-infusion pump body high top surface; 122-an infusion pump body first L-shaped side; 123-infusion pump long sides; 124-an infusion pump body second L-shaped side; 125-infusion pump bottom surface; 126-infusion pump medial side; 127-infusion pump body low top surface; 128-infusion pump short sides; 130-bayonet; 131-side push buttons; 132-bayonet.
Detailed Description
In the embodiment of the invention, the liquid reservoir is connected with the infusion pump body in a buckling way, and all the parts are produced in a modularized way, so that the assembly and the disassembly are convenient, and the invention is specifically described below.
As shown in fig. 3 to 7: in the embodiment of the invention, the infusion pump comprises a liquid storage device 12 and an infusion pump body, and the liquid storage device 12 and the infusion pump body are L-shaped as a whole.
A guide rail 15 is arranged on the middle side surface 116 of the liquid storage device, a track 14 is arranged on the middle side surface 126 of the infusion pump body, wherein: the guide rail 15 and the rail 14 are engaged with each other so that the two can be moved relatively.
The infusion pump body high top surface 121 is provided with a clamping hook 16, and the liquid storage device low top surface 117 is provided with a bayonet 132, wherein: the clamping hook 16 is opposite to the bayonet 132; the bayonet 132 is provided with a bayonet 130 for engaging with the hook 16, the bayonet 130 being connected to a side push button 131 provided in the reservoir housing.
In the embodiment of the invention, the liquid storage device moves downwards, after the track 14 on the infusion pump body is buckled with the guide rail 15 of the liquid storage device, the clamping hook 16 on the infusion pump body is buckled with the clamping pin 130 of the liquid storage device, the liquid storage device 12 is installed, and when the liquid storage device 12 is replaced, the liquid storage device can be replaced by pressing a side button. The embodiment of the invention is more convenient to disassemble and has strong affinity to people.
As shown in fig. 2, 9, 10, 11, 14, the infusion pump body includes an infusion pump upper housing assembly and an infusion pump lower housing assembly. The upper casing component of the infusion pump comprises an antenna 2, a buzzer 13, a printed circuit board 3, a rechargeable battery 4, a gear box component 5 and a transmission component, and the upper casing 1 of the infusion pump is connected with the antenna 2, the printed circuit board 4, the rechargeable battery 4, the gear box component 5 and the transmission component; the buzzer 13 is soldered to the printed circuit board 3.
The assembly method of the upper shell component of the infusion pump comprises the following steps: fitting the antenna 2 into the upper infusion pump housing 1 (the antenna 2 is double-sided adhesive to the upper infusion pump housing); the buzzer 13 is soldered to the printed circuit board 3, and then the buzzer 13 and the printed circuit board 3 are assembled to corresponding positions in the upper housing 1 of the infusion pump, and the rechargeable battery 4 is sequentially loaded, and then the gear box assembly 5 is loaded.
The infusion pump lower shell 9 is provided with a waterproof and breathable film 7, a vibration motor 6, a first connecting cap 18, a second connecting cap 19, a first spring needle connector 20, a second spring needle connector 21, a third spring needle connector 22, a connector pressing block 10 and a restarting switch 32, wherein: the vibration motor 6 is respectively connected with a first connecting cap 18 and a second connecting cap 19 through wires; the first connecting cap 18 and the second connecting cap 19 are respectively sleeved on the spring needle connector.
The assembly method of the lower shell component of the infusion pump comprises the following steps: assembling the waterproof and breathable membrane 7 into the lower infusion pump housing 9, then assembling the vibration motor 6 into the lower infusion pump housing 9, welding the first connecting cap 18 and the second connecting cap 19 with the outgoing terminals of the vibration motor 6 together by wires, then adhering the vibration motor 6 to the lower infusion pump housing 9, and sleeving the first connecting cap 19 and the second connecting cap 19 on the second spring needle connector 21 and the third spring needle connector 22 respectively; the connector compact 10 and the restart switch 32 are fitted into the infusion pump lower case 9.
The butt joint surface of the upper infusion pump shell 1 and the lower infusion pump shell 9 is provided with a first sealing ring 17, and the lower infusion pump shell 9 and the upper infusion pump shell 1 are connected through screws. The first pogo pin connector 20, the first connection cap 18, and the second connection cap 19 are respectively abutted against the printed circuit board 3.
The embodiment of the invention adopts the assembly screw 8 and the upper shell for assembly, thereby achieving the purpose of more convenient disassembly and maintenance or battery replacement. The assembly is more convenient by adopting modularized assembly, namely, the vibration motor is connected with the printed circuit board of the upper shell component of the infusion pump through the spring needle connector.
As shown in fig. 8, 12 and 13, the transmission assembly comprises a sleeve 24, a screw rod 27, a pressure sensor 30, a nut push rod 26 and a contact switch 28, wherein the sleeve 24 is positioned on the upper shell 1 of the infusion pump, the nut push rod 26 is arranged in the sleeve 24, the screw rod 27 is positioned at the center of the nut push rod 26, and the screw rod 27 is in threaded connection with the nut push rod 26; the gear box assembly 5 is connected with a screw rod 27; the bottom of the screw rod 27 is provided with a pressure sensor 30; the bottom of the travel of the nut push rod 26 is provided with a contact switch 28.
A piston 11 is arranged in the liquid storage 12, and an exhaust port 31 is connected with a cavity at the upper part of the piston 11 through a pipeline; the piston 11 is disposed on top of the nut pushrod 26 opposite the nut pushrod 26.
The working principle of the screw rod part is as follows: when the screw rod 27 rotates clockwise, the nut push rod 26 is pushed upwards, and at the same time, the screw rod 27 moves downwards, touches the pressure sensor 30, and along with the upward movement of the nut push rod 26, touches the piston 11, and pushes the piston 11 to move. When the nut pushrod touches the piston, the pressure of the pressure sensor 30 increases, triggering an infusion command, suggesting that infusion may be performed. When an infusion is performed, and when a blockage occurs, and the pressure of the pressure sensor 30 reaches a threshold value, the system prompts a user to generate the blockage; when the screw rod 27 rotates counterclockwise, the nut push rod 26 moves back downward, and when the contact switch 28 is moved, a stop command is triggered, and the screw rod 27 and the nut push rod 26 stop moving. Here with the top of the screw rod up.
The method for installing the sleeve comprises the following steps: the second sealing ring 25 is arranged in the sleeve 24, the sleeve 24 is penetrated from the hole of the upper shell 1 of the infusion pump, and then the sleeve is fixed by a screw. The sleeve is assembled by the screw and the shell, so that the sleeve can be disassembled and maintained conveniently, and the whole installation is compact and reasonable.
The whole infusion pump assembly according to the embodiment is realized by the scheme, and the rear shell can be integrally disassembled for battery replacement or maintenance.
The gear box assembly 5 includes a motor 51 and a reduction gear set 52, the reduction gear set 52 being connected to the lead screw 27. Gear box assembly theory of operation: the motor provides power and drives the screw rod to rotate through the reduction gear set; the screw rod rotates to push the nut push rod, so that the upward or downward movement of the nut push rod is completed.
The above embodiments do not limit the scope of the present invention. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives can occur depending upon design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention.

Claims (7)

1. An infusion pump comprising an infusion pump body and a reservoir (12), wherein the infusion pump body comprises an infusion pump upper housing assembly and an infusion pump lower housing assembly, wherein:
the whole body of the liquid storage device (12) and the infusion pump body is L-shaped;
the first L-shaped side surface (112), the long side surface (113), the second L-shaped side surface (114) and the short side surface (118) of the liquid storage device encircle the side surface of the liquid storage device (12), the middle side surface (116) of the liquid storage device is positioned between the long side surface (113) and the short side surface (118) of the liquid storage device, the bottom surface (111) of the liquid storage device and the low top surface (117) of the liquid storage device are adjacent to the middle side surface (116), and the low top surface (117) of the liquid storage device is positioned between the bottom surface (111) of the liquid storage device and the Gao Dingmian (115) of the liquid storage device;
the infusion pump body comprises an infusion pump body first L-shaped side surface (122), an infusion pump body long side surface (123), an infusion pump body second L-shaped side surface (124) and an infusion pump body short side surface (128), wherein the infusion pump body middle side surface (126) is positioned between the infusion pump body long side surface (123) and the infusion pump body short side surface (128), the infusion pump body high top surface (121) and the infusion pump body low top surface (127) are adjacent to the infusion pump body middle side surface (126), and the infusion pump body low top surface (127) is positioned between the infusion pump body high top surface (121) and the infusion pump body bottom surface (125);
the side surface (116) in the liquid storage device is provided with a guide rail (15) perpendicular to the liquid storage device Gao Dingmian (115), and the side surface (126) in the infusion pump body is provided with a track (14) perpendicular to the bottom surface (125) of the infusion pump body;
the guide rail (15) is meshed with the track (14) so as to enable the guide rail and the track to move relatively;
a sealing element is arranged between the upper infusion pump shell component and the lower infusion pump shell component;
the upper shell component of the infusion pump is connected with the lower shell component of the infusion pump through a detachable connecting structure;
the infusion pump body high top surface (121) is equipped with pothook (16), and reservoir low top surface (117) are equipped with bayonet socket (132), wherein:
the clamping hook (16) is opposite to the bayonet (132);
a bayonet (130) for being clamped with the clamping hook (16) is arranged on the inner side of the bayonet (132), and the bayonet (130) is connected with a side push button (131) arranged on the liquid reservoir shell;
the sealing element is a first sealing ring (17);
the infusion pump upper shell component and the infusion pump lower shell component are respectively provided with an infusion pump upper shell (1) and an infusion pump lower shell (9), and the first sealing ring (17) is positioned on the butt joint surface of the infusion pump lower shell (9) and the infusion pump upper shell (1);
the lower infusion pump shell (9) is connected with the upper infusion pump shell (1) through screws;
the upper shell component of the infusion pump further comprises an antenna (2), a buzzer (13), a printed circuit board (3), a rechargeable battery (4), a gear box component (5) and a transmission component, wherein:
the infusion pump upper shell (1) is connected with the antenna (2), the printed circuit board (3), the rechargeable battery (4), the gear box component (5) and the transmission component;
the buzzer (13) is attached to the inner side of the upper shell (1) of the infusion pump and is connected with the printed circuit board (3);
the transmission assembly comprises a sleeve (24), a screw rod (27), a pressure sensor (30), a nut push rod (26) and a contact switch (28), wherein:
the sleeve (24) is positioned on the upper shell (1) of the infusion pump;
a nut push rod (26) is arranged in the sleeve (24), a screw rod (27) is positioned at the center of the nut push rod (26), and the screw rod (27) is in threaded connection with the nut push rod (26);
the gear box assembly (5) is connected with the screw rod (27);
the bottom of the screw rod (27) is provided with a pressure sensor (30);
a contact switch (28) is arranged at the bottom of the stroke of the nut push rod (26);
a piston (11) is arranged in the liquid storage device (12), and an infusion needle (31) is connected with a cavity at the upper part of the piston (11) through a pipeline;
the piston (11) is opposite to the nut push rod (26) and is arranged at the top of the nut push rod (26).
2. Infusion pump according to claim 1, characterized in that the infusion pump lower housing (9) is provided with a waterproof and breathable membrane (7), a vibration motor (6), a first connection cap (18), a second connection cap (19), a first spring needle connector (20), a second spring needle connector (21), a third spring needle connector (22), a connector press (10), a restart switch (32), wherein:
the vibration motor (6) is respectively connected with the first connecting cap (18) and the second connecting cap (19) through leads;
the first connecting cap (18) and the second connecting cap (19) are respectively sleeved on the spring needle connector.
3. Infusion pump according to claim 2, characterized in that the first spring needle connector (20), the first connection cap (18), the second connection cap (19) are in abutment with the printed circuit board (3), respectively.
4. Infusion pump according to claim 1, characterized in that the gearbox assembly (5) comprises a motor (51) and a reduction gear set (52), the reduction gear set (52) being connected with a screw (27).
5. The infusion pump of claim 4, wherein the reduction gear set (52) has a gear reduction ratio of between 90 and 110 and a lead screw of between M2 and M3.
6. A method of assembling an infusion pump as claimed in claim 3, wherein the rails (14) of the infusion pump body and the rails (15) of the reservoir (12) are aligned and snapped together, pushing them towards each other;
when the infusion pump reaches the bottom, the clamping hook (16) on the infusion pump body is buckled with the clamping pin (130) of the liquid reservoir (12), and the liquid reservoir (12) is installed.
7. The method of assembling of claim 6, wherein the method of assembling includes the step of spring pin connector connection: the step of spring needle connector connection specifically comprises:
the first connecting cap (18) and the second connecting cap (19) are welded with the outgoing terminal of the vibration motor (6) through wires;
adhering a vibration motor (6) to a lower shell (9) of the infusion pump;
then the first connecting cap (18) and the second connecting cap (19) are respectively sleeved on the spring needle connector;
the lower shell (9) of the infusion pump and the upper shell (1) of the infusion pump are connected by screws;
the first spring needle connector (20), the first connecting cap (18) and the second connecting cap (19) are respectively abutted with the printed circuit board (3) of the upper shell assembly of the infusion pump.
CN202210360312.8A 2022-04-07 2022-04-07 Infusion pump and assembly method thereof Active CN114712617B (en)

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CN202210360312.8A CN114712617B (en) 2022-04-07 2022-04-07 Infusion pump and assembly method thereof
PCT/CN2023/086805 WO2023193782A1 (en) 2022-04-07 2023-04-07 Infusion device, assembly method therefor, and use thereof

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Application Number Priority Date Filing Date Title
CN202210360312.8A CN114712617B (en) 2022-04-07 2022-04-07 Infusion pump and assembly method thereof

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CN114712617B true CN114712617B (en) 2023-07-04

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WO2023193782A1 (en) * 2022-04-07 2023-10-12 微泰医疗器械(杭州)股份有限公司 Infusion device, assembly method therefor, and use thereof
CN115779188A (en) * 2023-02-07 2023-03-14 微泰医疗器械(杭州)股份有限公司 Infusion pump and assembling method thereof

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CN103212139B (en) * 2013-03-25 2014-09-17 苏州泽德医疗器械有限公司 Calibrating method of scale length of syringe push pump
CN104436362B (en) * 2014-12-09 2018-03-13 杨利波 A kind of infusion pump
CN215134788U (en) * 2020-12-09 2021-12-14 微泰医疗器械(杭州)股份有限公司 Drug delivery transmission system and insulin pump
CN114082046A (en) * 2021-11-15 2022-02-25 袁妮 Positionable insulin injection equipment for endocrinology department

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