CN-122006008-A - Multi-flow-speed infusion pump with compact structure

CN122006008ACN 122006008 ACN122006008 ACN 122006008ACN-122006008-A

Abstract

A multi-flow-rate infusion pump with a compact structure comprises a protecting bottle, a flow rate regulator, an outer three-way joint, a liquid outlet joint and a protecting cap, wherein a sliding rod sleeve which is in sliding connection with an elastic liquid storage bag is arranged at the top of the flow rate regulator, a medicine adding hole and a liquid outlet hole are arranged at the bottom of the sliding rod sleeve, the liquid adding joint is connected with the medicine adding hole, a sliding rod is arranged in the sliding rod sleeve in a sliding manner, a liquid medicine filter is embedded in the flow rate regulator, a liquid inlet of the liquid medicine filter is connected with the liquid outlet hole, a liquid outlet of the liquid medicine filter is connected with an adjusting inlet of the flow rate regulator through a micro-hole pipe, and meanwhile, the liquid medicine filter is connected with the outer three-way joint through a flow limiting pipe and an automatic control component. The invention makes the liquid medicine pass through the liquid medicine filter before entering the microporous tube and the flow limiting tube, thereby avoiding the risk of blockage of the pipeline, embeds the liquid medicine filter in the flow speed regulator, and simultaneously sets the self-control component near the flow speed regulator, thereby shortening the pipeline, reducing the probability of collision or pulling in the moving process and improving the infusion safety.

Inventors

WANG JIANGHUA
QIU BO
RAO PINGHUA
ZHANG SHUWEN
ZOU LONGFEI

Assignees

江西洪达医疗器械集团有限公司

Dates

Publication Date: 20260512
Application Date: 20260326

Claims (10)

1. The utility model provides a compact structure's multi-flow-rate infusion pump, includes the bottle, locates the velocity of flow regulator of bottle bottom is protected to and through hose in proper order with outer three way connection, play liquid joint and the helmet of velocity of flow regulator connection, its characterized in that, the top of velocity of flow regulator is equipped with the slide bar cover with elastic liquid reservoir sliding connection, the bottom of slide bar cover is equipped with dosing hole and play liquid hole, the liquid feeding joint passes velocity of flow regulator is connected with dosing hole; a sliding rod is arranged in the sliding rod sleeve in a sliding way, one end of the elastic liquid storage bag is fixed at the bottom of the sliding rod sleeve, and the other end of the elastic liquid storage bag is fixed at the top of the sliding rod; the liquid inlet of the liquid medicine filter is connected with the liquid outlet hole, the liquid outlet of the liquid medicine filter is connected with the adjusting inlet of the flow rate regulator through a micro-hole pipe, and meanwhile, the liquid outlet of the liquid medicine filter is connected with the outer three-way joint through a flow limiting pipe and an automatic control component.
2. The compact multi-flow infusion pump of claim 1 wherein the drug solution filter has three outlet openings and the flow regulator inlet includes three inlet openings; one of the outlet holes is connected with the inner three-way joint, then is connected with the current-limiting pipe, and is simultaneously connected with one microporous pipe, the other two outlet holes are correspondingly connected with two microporous pipes, and the three microporous pipes are correspondingly connected with three inlet holes.
3. The compact multi-flow rate infusion pump of claim 1, wherein the drug solution filter is provided with four outlet holes, one of which is connected with the flow limiting tube, and the other three outlet holes are correspondingly connected with three microporous tubes.
4. The compact multi-flow rate infusion pump of claim 1 wherein the liquid medicine filter is provided with an outlet port connected to the inlet port of the inner three-way fitting, one outlet port of the inner three-way fitting being connected to the microporous tube and the other outlet port being connected to the flow restrictor tube.
5. The compact multi-flow infusion pump of claim 1 wherein the drug solution filter comprises a first housing and a second housing that are snap-fit together, and a filter membrane interposed between the first housing and the second housing; the first shell is provided with a liquid inlet, the second shell is provided with a liquid outlet, and the liquid outlet and the liquid inlet are respectively positioned at two ends of the liquid medicine filter.
6. The compact multi-flow infusion pump of claim 5 wherein a plurality of support ribs are provided in the second housing, the top of each support rib being in contact with the filter membrane.
7. The compact multi-flow rate infusion pump of claim 1, wherein the flow rate regulator comprises an upper seat and a base which are connected, a knob is rotatably connected to the bottom of the base, and a sealing gasket is embedded between the knob and the base; The upper seat is connected with the slide bar sleeve, and the liquid medicine filter is positioned between the upper seat and the base.
8. The compact multi-flow infusion pump of claim 7 wherein a support plate is provided in the upper housing, the support plate comprising a support groove and an annular wall connected to the wall of the support groove in an arcuate transition, the top edge of the annular wall being connected to the inner wall of the upper housing, the slide bar sleeve being mounted in the support groove.
9. The compact multi-flow rate infusion pump of claim 8, wherein the bottom of the bearing groove is provided with a mounting hole, and the side wall of the mounting hole is provided with a limit groove; the bottom side wall of the sliding rod sleeve is provided with a limiting convex rib, and the limiting convex rib is positioned in the limiting groove.
10. The compact multi-flow infusion pump of claim 8, wherein a support stand is provided inside the base, an accommodating space is formed between the support stand and the support plate, and the liquid medicine filter is clamped in the accommodating space.

Description

Multi-flow-speed infusion pump with compact structure Technical Field The invention relates to the technical field of infusion pumps, in particular to a multi-flow-rate infusion pump with a compact structure. Background In the prior art, publication number CN120053809a discloses an infusion pump with adjustable flow rate and a flow rate regulator thereof, although different flow rate regulation can be realized, the flow path design is that the liquid medicine flows through the microporous tube first and then passes through the liquid medicine filter, and under the design, particles possibly existing in the liquid medicine have the risk of blocking the microporous tube, so that the long-term stability of the infusion flow rate is affected. In addition, the liquid medicine filter and the automatic control component are both positioned in the pipeline at positions deviating from the protective bottle, so that the pipeline is longer, and is easy to collide or pull in the moving process, thereby influencing the infusion safety. Disclosure of Invention Based on the above, the invention aims to provide a multi-flow-rate infusion pump with a compact structure, so as to avoid the risk of blockage of a pipeline, improve the integration level, shorten the pipeline and facilitate carrying. The utility model provides a compact structure's multi-flow-rate infusion pump, includes the bottle, locates the velocity of flow regulator of bottle bottom is protected to and through hose in proper order with outer three way connection, play liquid joint and the helmet of velocity of flow regulator connection, the top of velocity of flow regulator is equipped with the slide bar cover with elastic liquid reservoir sliding connection, the bottom of slide bar cover is equipped with dosing hole and play liquid hole, the liquid feeding joint passes velocity of flow regulator with dosing hole connection; a sliding rod is arranged in the sliding rod sleeve in a sliding way, one end of the elastic liquid storage bag is fixed at the bottom of the sliding rod sleeve, and the other end of the elastic liquid storage bag is fixed at the top of the sliding rod; the liquid inlet of the liquid medicine filter is connected with the liquid outlet hole, the liquid outlet of the liquid medicine filter is connected with the adjusting inlet of the flow rate regulator through a micro-hole pipe, and meanwhile, the liquid outlet of the liquid medicine filter is connected with the outer three-way joint through a flow limiting pipe and an automatic control component. Preferably, the liquid medicine filter is provided with three outlet holes, and the adjusting inlet of the flow rate regulator comprises three inlet holes; one of the outlet holes is connected with the inner three-way joint, then is connected with the current-limiting pipe, and is simultaneously connected with one microporous pipe, the other two outlet holes are correspondingly connected with two microporous pipes, and the three microporous pipes are correspondingly connected with three inlet holes. Preferably, the liquid medicine filter is provided with four outlet holes, one of which is connected with the flow limiting pipe, and the other three outlet holes are correspondingly connected with three microporous pipes. Preferably, the liquid medicine filter is provided with an outlet, the outlet is connected with a liquid inlet of the inner three-way joint, one liquid outlet of the inner three-way joint is connected with the microporous pipe, and the other liquid outlet is connected with the current-limiting pipe. Preferably, the liquid medicine filter comprises a first shell, a second shell and a filtering membrane, wherein the first shell and the second shell are connected in a buckled mode, and the filtering membrane is embedded between the first shell and the second shell; the first shell is provided with a liquid inlet, the second shell is provided with a liquid outlet, and the liquid outlet and the liquid inlet are respectively positioned at two ends of the liquid medicine filter. Preferably, a plurality of supporting ribs are arranged in the second shell, and the top of each supporting rib is in contact with the filtering membrane. Preferably, the flow speed regulator comprises an upper seat and a base which are connected, the bottom of the base is rotationally connected with a knob, and a sealing gasket is embedded between the knob and the base; The upper seat is connected with the slide bar sleeve, and the liquid medicine filter is positioned between the upper seat and the base. Preferably, the upper seat is provided with a supporting plate, the supporting plate comprises a supporting groove and an annular wall connected with the groove wall of the supporting groove in an arc transition mode, the top edge of the annular wall is connected with the inner wall of the upper seat, and the sliding rod sleeve is installed in the supporting groove. Preferably, the bottom of the bearing groove is