CN-224207175-U - PCA automatic control device

CN224207175UCN 224207175 UCN224207175 UCN 224207175UCN-224207175-U

Abstract

The utility model discloses a PCA automatic control device which comprises a pipeline, wherein the pipeline comprises a flow limiting pipe, a liquid storage bag and an elastic pipe which are sequentially communicated, a base is of a shell structure with an opening at the upper end face, a pipeline groove for placing the pipeline is formed in the base, a key is rotationally connected with the base, a downward extending shutoff plate is arranged on the left side of the key, a downward extending pressing part is arranged on the right side of the key, a reset component is used for providing reset force for counterclockwise rotation of the key, the locking component comprises a locking piece and an operating piece which are mutually connected, the locking component blocks the key from counterclockwise rotation, the shutoff plate is in a state of not extruding the elastic pipe, external force is applied to the operating piece, the locking piece releases the blocking of the key, the liquid storage bag is additionally added, the pressing part moves downwards, the key is clockwise, the liquid storage bag is extruded by the pressing part, and the shutoff plate is far away from the elastic pipe. The locking assembly of the present utility model protects the flexible tube from compression during storage during assembly for extended periods of time.

Inventors

SHI WENZHEN
TIAN PENGFEI
WANG QIANG
Li Dieying
YAN KEKE
LI ZHAOSEN
MA ZHENYUAN

Assignees

河南驼人医疗器械研究院有限公司

Dates

Publication Date: 20260508
Application Date: 20250630

Claims (10)

1. A PCA automatic control device, characterized by comprising the following steps: The pipeline comprises a flow limiting pipe, a liquid storage bag and an elastic pipe which are sequentially communicated; The base is of a shell structure with an opening at the upper end face, the base is provided with a pipeline groove which is arranged along the left-right direction, and the pipeline is arranged in the pipeline groove; The key is arranged at an opening above the base along the left-right direction, is provided with a rotary support and is rotationally connected with the base, a downward extending shutoff plate is arranged at the left side of the key rotation axis corresponding to the elastic tube, and a downward extending pressing part is arranged at the right side of the key rotation axis; the reset component is arranged between the base and the key and is used for providing reset force for counterclockwise rotation of the key; A locking assembly including a locking member and an operating member connected to each other; the locking component is arranged between the base and the key and used for blocking the key from rotating anticlockwise so that the shutoff plate is in a state of not extruding the elastic tube; Removing the operation piece, and releasing the blocking of the key by the locking piece; In the liquid medicine adding stage, the pressing part moves downwards, the key rotates clockwise, the pressing part presses the liquid storage bag, the shutoff plate is far away from the elastic pressing pipe, and the internal flow path of the elastic pipe is opened.
2. A PCA robot as in claim 1, wherein said return assembly is a spring; the base is provided with the first locating part with spring complex, the button is provided with the second locating part with spring complex, and first locating part and second locating part are used for prescribing a limit to reset the subassembly in the position of predetermineeing, prevent the spring skew.
3. A PCA robot as in claim 1, wherein said key cross-sectional profile is generally oval for ease of pressing.
4. A PCA robot as in claim 1, wherein the base is provided with a placement slot for engaging the locking assembly for limiting displacement of the locking assembly in a lateral direction, the locking assembly being placed in the placement slot during assembly.
5. The PCA robot of claim 4, wherein the placement slot includes a square slot in the base to the left of the axis of rotation of the key and extending downwardly from the upper face of the base; The locking assembly comprises a bolt, the bolt comprises a circular bolt handle, the bolt handle is fixedly connected with a strip-shaped bolt head, and the bolt head is inserted into the square groove and used for blocking the key from rotating anticlockwise, so that the shutoff plate is in a state of not extruding the elastic tube.
6. A PCA robot as in claim 1, wherein the base is provided with a swivel support, the swivel support being rotatably coupled to the swivel support.
7. The PCA robot as claimed in claim 6, wherein the rotation support has two rotation supports respectively disposed on the inner surface of the front wall and the inner surface of the rear wall of the base, and the two rotation supports are symmetrically disposed in front and rear, and a shaft hole is provided in the middle of the rotation support; The rotary support is of an L-shaped structure which downwards extends from the lower end of the key and has elastic deformation capability, the rotary support is arranged on the front side and the rear side of the key in a front-back symmetrical mode, the rotary support lower ends on the front side and the rear side of the key are respectively provided with a rotary shaft which downwards and forwards horizontally extends, and the shaft hole of the rotary support is sleeved on the rotary shaft and is in running fit with the rotary shaft.
8. A PCA robot as in claim 6, wherein the swivel support and swivel mount are connected by a snap fit connection during assembly.
9. The automatic control device for PCA as in claim 8, wherein a guide groove for facilitating the clamping of the rotary shaft of the key is arranged above the corresponding shaft hole of the rotary support, and a guide inclined plane is arranged on the upper end surface of the guide groove; the rotary shafts on the front side and the rear side of the key are respectively provided with a chamfer matched with the guide inclined plane.
10. A PCA robot as in any of claims 1-9, wherein the base is provided with an upwardly projecting protective shell for preventing false touches to the key to squeeze the key into the reservoir.

Description

PCA automatic control device Technical Field The utility model relates to the technical field of infusion pump automatic control pipelines, in particular to a PCA automatic control device. Background Patient self-controlled analgesia (Patient controlled analgesia, PCA) is a pain management technique by which medical personnel preset the dosage of analgesic drugs according to the pain degree and physical condition of the patient and then deliver the analgesic drugs to the patient for "self-management". The disposable infusion pump is a common infusion tool for postoperative analgesia in clinic at the present stage, and achieves micro and accurate infusion by using the elastic retractive force of the silica gel liquid storage bag as power and utilizing the accurate current limiting device, thereby ensuring accurate dosage and safely entering the patient. The liquid medicine in the infusion pump is delivered to the patient through two pipelines, one is to continuously input the anesthetic liquid at a constant speed, and the other is to automatically adjust through the self-control handle to increase the input of the anesthetic liquid when the patient feels painful, so that pain is relieved, and an analgesic effect is achieved. However, in the use process of the device, the tip part contacted with the elastic tube possibly has the phenomenon that the pipeline does not rebound in the process of extruding the pipeline for a long time, so that the internal flow path of the pipeline is not communicated, and secondly, the contact pressing area of the self-control handle and fingers is small, so that the device does not conform to the human engineering and is not easy to press. Disclosure of utility model The utility model aims to solve the problem that the automatic control pipeline of the infusion pump in the prior art is extruded by the handle for a long time so as to influence the on-off of an internal flow path. The utility model further solves the problems that the connection of the self-control drug delivery pipeline is complicated, the leakage of liquid is easy to occur and the safety of patients is endangered in the prior art. The utility model further solves the problems of small pressing area of the self-control handle contacted with fingers, non-compliance with human engineering and difficult pressing operation in the prior art. In order to solve the technical problems, the utility model adopts the following technical scheme: A PCA robot comprising: The pipeline comprises a flow limiting pipe, a liquid storage bag and an elastic pipe which are sequentially communicated; The base is of a shell structure with an opening at the upper end face, and is provided with a pipeline groove which is arranged along the left-right direction and used for placing the pipeline; The key is arranged at an opening above the base along the left-right direction, is provided with a rotary support and is rotationally connected with the base, a downward extending shutoff plate is arranged at the left side of the key rotation axis corresponding to the elastic tube, and a downward extending pressing part is arranged at the right side of the key rotation axis; the reset component is arranged between the base and the key and is used for providing reset force for counterclockwise rotation of the key; A locking assembly including a locking member and an operating member connected to each other; The locking component is arranged between the base and the key and used for blocking the key from rotating anticlockwise, so that the shutoff plate is in a state of not extruding the elastic tube; Removing the operation piece, and releasing the blocking of the key by the locking piece; In the liquid medicine adding stage, the pressing part moves downwards, the key rotates clockwise, the pressing part presses the liquid storage bag, the shutoff plate is far away from the elastic pressing pipe, and the internal flow path of the elastic pipe is opened. Preferably, the reset component is a spring; the base is provided with the first locating part with spring complex, the button is provided with the second locating part with spring complex, and first locating part and second locating part are used for prescribing a limit to reset the subassembly in the position of predetermineeing, prevent the spring skew. Preferably, the key cross-sectional profile is generally oval for ease of pressing. Preferably, the base is provided with a placing groove matched with the locking component, and the placing groove is used for limiting the locking component to shift along the left-right direction, and the locking component is placed in the placing groove during assembly. Preferably, the placing groove comprises a square groove which is positioned on the left side of the rotation axis of the key and extends downwards from the upper end surface of the base; The locking assembly comprises a bolt, the bolt comprises a circular bolt handle, the bolt handle is fixedly co