CN-224207173-U - Micro infusion pump

CN224207173UCN 224207173 UCN224207173 UCN 224207173UCN-224207173-U

Abstract

The utility model discloses a micro-infusion pump which comprises a micro-infusion pump component, a liquid storage component and a connecting component, wherein the micro-infusion pump component is provided with a mounting bin, the liquid storage component is detachably arranged in the mounting bin, the connecting component limits the liquid storage component in the mounting bin through a clamping part, the connecting component is communicated with the liquid storage component, and the connecting component is connected with a needle seat through an infusion tube. The utility model has the advantages of reasonable structure, repeated use of the liquid storage device, convenient separation of the push rod and convenient installation of the connecting seat.

Inventors

QIN JIAN
SU YUHANG
CAO HUA
HAN XIAO
FENG CHAO

Assignees

顶点医疗器械(江苏)有限公司

Dates

Publication Date: 20260508
Application Date: 20241231

Claims (8)

1. The micro-infusion pump is characterized by comprising a micro-infusion pump component, a liquid storage component and a connecting component, wherein the micro-infusion pump component is provided with a mounting bin, the liquid storage component is detachably arranged in the mounting bin, the connecting component limits the liquid storage component in the mounting bin through a clamping part, the connecting component is communicated with the liquid storage component, and the connecting component is connected with a needle seat through an infusion tube; The clamping part comprises at least one section of single-wire thread and a thread groove matched with the single-wire thread, wherein the thread groove is arranged at the end part of the inner wall of the mounting bin, and the single-wire thread is arranged on the outer wall of the connecting component; or the clamping part comprises at least one section of single thread and a thread groove matched with the single thread, wherein the single thread is arranged at the end part of the inner wall of the mounting bin, and the thread groove is arranged on the outer wall of the connecting component.
2. The micro-infusion pump according to claim 1, wherein the micro-infusion pump assembly comprises a shell, a control part, a battery and a driving part, wherein the shell is provided with a mounting bin, the driving part is arranged at the bottom of the mounting bin, the control part and the battery are arranged in the shell, the battery is communicated with the control part and the driving part, and the control part drives the driving part to operate or stop.
3. The micro-infusion pump according to claim 2, wherein the driving part comprises a micro motor, a screw rod and a thread sleeve, the battery and the control part are both connected with the micro motor, the output end of the micro motor is fixedly connected with the screw rod, the screw rod is driven to rotate clockwise or anticlockwise, the thread sleeve is arranged on the screw rod, and the micro motor drives the thread sleeve to be close to or far away from the liquid storage component.
4. A microinjection pump according to claim 3, wherein the reservoir assembly includes a cylinder having a receiving chamber therein, a piston, a pushrod, and a stationary seal head sealing an end of the receiving chamber, the piston sealing the other end of the receiving chamber, the piston pushing within the receiving chamber, the pushrod or threaded sleeve pushing the piston to reciprocate within the receiving chamber.
5. The micro infusion pump according to claim 4, wherein the piston is detachably connected with the push rod through threads, the bottom of the piston is provided with internal threads, the top of the push rod is provided with an external thread sleeve, and at least one deformation groove penetrating through the external thread sleeve is formed in the external thread sleeve.
6. The micro-infusion pump according to claim 5, wherein the connecting assembly comprises a connecting sleeve, a needle, a mounting hole, a limiting groove and a rotating protrusion, the rotating protrusion is vertically fixed at the top of the connecting sleeve in a sheet shape, the mounting hole penetrates through the rotating protrusion and is arranged on the connecting sleeve, the needle is fixed in the mounting hole from the bottom of the mounting sleeve and is communicated with the mounting hole, the limiting groove is formed in the inner wall of the connecting sleeve, and single-thread threads or thread grooves are formed in the outer wall of the connecting sleeve.
7. The micro-infusion pump according to claim 6, wherein the outer wall of the fixed sealing head is provided with a limiting protrusion, and the limiting protrusion is clamped and fixed with the limiting groove.
8. The micro-infusion pump of claim 7, wherein said needle pierces said stationary seal head to communicate with the receiving chamber.

Description

Micro infusion pump Technical Field The utility model relates to the field of medical equipment, in particular to a micro-infusion pump. Background The basic purpose of the insulin pump in the infusion pump is to simulate the secretion function of pancreas, continuously push insulin into the skin of a user according to the dosage required by a human body, and keep the blood sugar stable throughout the day so as to achieve the aim of controlling diabetes. The prior art reservoir devices for storing insulin are usually disposable and replaceable consumable materials, i.e. the stored insulin is consumed completely, and the reservoir, the connector and the infusion line need to be replaced. For safety reasons, the connection head and the infusion line are replaced at a prescribed time due to prolonged contact with the outside, but are reusable since the reservoir is mounted inside the infusion pump. The reservoir is also a significant expense to the user as a disposable consumable, and is also wasteful of resources, thus a reusable reservoir is needed in the marketplace. In the test process, the fact that 1, the connector with full threads needs to be screwed tightly, namely a plurality of turns can be used for completing fixation is inconvenient for users who are relatively old or cannot perform fine operations on hands, and 2, when the liquid storage device is taken down and the rotary push rod is connected with the piston, the user usually connects the push rod with the piston as tightly as possible due to operation habit, so that after the liquid medicine is extracted by the piston, the reverse rotation push rod is separated from the piston, and the piston rotates in the cylinder body to be separated from the push rod due to the fact that the assembly is too tightly performed and the piston rotates reversely. Disclosure of utility model In order to solve the problems, the utility model aims to provide the micro-infusion pump and the liquid reservoir thereof, which have reasonable structure, can be repeatedly used, are convenient for the push rod to separate from and are convenient for the connecting seat to be installed. According to one aspect of the utility model, a micro-infusion pump is provided, which comprises a micro-infusion pump component, a liquid storage component and a connecting component, wherein the micro-infusion pump component is provided with a mounting bin, the liquid storage component is detachably arranged in the mounting bin, the connecting component limits the liquid storage component in the mounting bin through a clamping part, the connecting component is communicated with the liquid storage component, and the connecting component is connected with a needle seat through an infusion tube. The liquid storage component is convenient to perfuse the liquid storage component again after the liquid medicine is used up through the detachable setting liquid storage component, and then the use cost is reduced, and quick and convenient connection is convenient to carry out through the connecting component. In some embodiments, the micro-infusion pump assembly comprises a shell, a control part, a battery and a driving part, wherein a mounting bin is arranged on the shell, the driving part is mounted at the bottom of the mounting bin, the control part and the battery are both mounted in the shell, the battery is communicated with the control part and the driving part, and the control part drives the driving part to operate or stop. The liquid storage component is convenient to install through the installation bin. In some embodiments, the driving part comprises a micro motor, a screw rod and a thread sleeve, wherein the battery and the control part are both connected with the micro motor, the output end of the micro motor is fixedly connected with the screw rod, the driving screw rod rotates clockwise or anticlockwise, the thread sleeve is arranged on the screw rod, and the micro motor drives the thread sleeve to be close to or far away from the liquid storage component. The screw rod is driven by an undetermined motor to rotate forwards and reversely, so that the movement of the threaded sleeve is realized, and the function that the threaded sleeve pushes the piston to perform micro infusion is realized. In some embodiments, the clamping portion comprises at least one section of single-wire threads and a thread groove matched with the single-wire threads, wherein the thread groove is arranged at the end part of the inner wall of the mounting bin, and the single-wire threads are arranged on the outer wall of the connecting assembly. The arrangement of at least one section of single-line thread can realize rapid assembly and disassembly by only rotating one section of thread distance when a user installs the connecting assembly. In some embodiments, the clamping portion comprises at least one section of single-wire threads and a thread groove matched with the single-wire threads, the single-wire t