CN108785081A - Pedal control reciprocating suction type dispensing device and dispensing method - Google Patents

Abstract

The existing powder injection dispensing device has a complicated dispensing needle and a main body, and the switch of the main body must be manually touched. On the one hand, it increases the burden on the hands of nurses, and on the other hand, it is easy to cause hand contamination. The device is composed of a host (1), a pedal control switch (4) and a special dispensing needle (3) (hereinafter referred to as a dispensing needle). The host (1) is mainly composed of a motor, a control circuit board and a pump head that can move forward and backward ( 2) Composition, the pedal control switch (4) is bi-directionally used to control the forward and reverse peristalsis of the pump head (2) of the main engine, and the dispensing needle (3) is composed of a peristaltic hose (3B) with two ends being puncture needles (3A). Stepping on the foot control switch (4) can realize the forward and reverse peristalsis of the pump head (2) of the main machine to complete the transfer of the liquid medicine between the liquid bag (B) and the medicine bottle (b), and the operator only needs to constantly puncture and replace the medicine bottle with both hands (b) The dispensing operation can be carried out continuously. The device can greatly improve the efficiency and speed of dispensing through the dispensing method of using both hands and feet, and reduce the contamination of hands from the outside world. It is especially suitable for the dispensing needs of hospitals for centralized, rapid and large-scale dispensing and aseptic purification.

Description

A pedal-controlled reciprocating suction type dispensing device and dispensing method

Technical field

The invention relates to the field of medical equipment, and provides a pedal-controlled reciprocating suction type dispensing device and a dispensing method for dispensing powder injection medicine.

Background technique

The dispensing referred to in medical treatment refers to the transfer of medicinal liquid or powder into a liquid bag for intravenous infusion. In the past, the dispensing method was usually completed by using a syringe. The applicant once disclosed a dispensing device for powder injection (patent number: 201120293036.5) and a reversible pump head peristaltic pump (patent number: 201320250922.9), which can be used to replace the syringe to realize automatic dispensing, and maximize the It can reduce the waste of medicine and the chance of drug contamination, but the dispensing needle and the main unit of the device have complicated structures, and the switch of the main unit must be manually touched. The structure of the needle and the host and the dispensing method free the operator's hands for puncture operations only, avoiding direct contact with the host and contamination, and will better meet the hospital's centralized, rapid, large-scale dispensing and aseptic purification of dispensing.

Contents of the invention

The object of the present invention is to provide a pedal-controlled back-and-forth suction type dispensing device and method for powder injections that are simple to operate and can reduce hand pollution.

The technical scheme adopted by the present invention is: the device is composed of a host, a pedal control switch and a special dispensing needle (hereinafter referred to as a dispensing needle). The switch is bidirectional to control the positive and negative peristalsis of the pump head of the host machine, and the dispensing needle is composed of a peristaltic hose with puncture needles at both ends. Step on the right switch of the foot control switch, the pump head of the main engine is peristaltic to the dispensing needle, and the peristaltic hose injects the liquid in the liquid bag into the medicine bottle. After the medicine powder is dissolved, step on the left switch of the foot control switch, the pump head of the main engine The reverse peristaltic dispensing needle peristaltic hose sucks the medicine liquid in the medicine bottle back into the liquid bag to complete the medicine dispensing. The drug dispensing device drug dispensing needle is only composed of a peristaltic hose and a puncture needle. The structure is simple, the cost can be greatly reduced, and it is convenient for one-time use; The transfer of the liquid medicine between the bottles completes the whole process of dispensing; the operator only needs to puncture and replace the medicine bottles with both hands to continue the dispensing operation. The device can greatly improve the efficiency and speed of dispensing through the dispensing method of hands and feet, and reduce the contamination of hands from the outside world. It is especially suitable for the dispensing needs of hospitals for centralized, rapid and large-scale dispensing and aseptic purification.

The present invention is further described below in conjunction with accompanying drawing:

Description of drawings

Figure 1 and Figure 2 are schematic diagrams of an existing dispensing device for powder injections

Fig. 3 is a schematic diagram of the dispensing needle of the present invention

Figure 4 is a schematic diagram of the forward suction work of the liquid of the present invention

Figure 5 is a schematic diagram of the pumping work of the liquid medicine of the present invention

In the figure: 1. Host 2. Pump head 3. Dispensing needle 3A, puncture needle 3B, peristaltic hose 4, pedal control switch 4A, pedal right switch 4B, pedal left switch B, liquid bag b, medicine bottle

specific implementation plan

Figure 1 and Figure 2 are schematic diagrams of an existing dispensing device for powder injections. The two-channel dispensing needle establishes the communication between the medicine bottle and the liquid bag. When dispensing, insert one end of the dispensing needle into the liquid bag (B) and the other end into the medicine At the end of the bottle (b), at the beginning, the liquid bag (B) is on the top, and the medicine bottle (b) is on the bottom. The host drives the hose so that the liquid in the liquid bag (B) enters the medicine bottle (b) through the more complicated dual-channel dispensing needle. end, manually press the switch of the host, the pump head of the host is turned over, so that the liquid bag (B) is on the bottom, the medicine bottle (b) is on the top, and the liquid in the medicine bottle (b) is sucked back into the liquid bag (B) to complete the dispensing. The dispensing device and dispensing process are relatively complicated, and the dispensing needle has a double-channel structure, which results in a relatively large diameter of the dispensing needle, which makes it difficult to puncture the stoppers of the liquid bag (B) and the medicine bottle (b).

Fig. 3 is a schematic diagram of the dispensing needle of the present invention. The dispensing needle (3) is a single channel, which is composed of a peristaltic hose (3B) and a puncture needle (3A). The simple structure can greatly reduce the cost, and the puncture needle (3A) is thinner to facilitate puncture. Suitable for single use.

Fig. 4 is a schematic diagram of the forward pumping operation of the liquid of the present invention. This device is composed of a host (1), a dispensing needle (3) and a pedal control switch (4), and the pump head of the host machine (2) is regulated by the pedal control switch (4). ) forward and reverse peristaltic dispensing needle (3) flexible tube (3B) can complete the transfer of medicinal liquid. When dispensing medicine, first install the peristaltic hose (3B) of the dispensing needle (3) in the pump head (2) of the main machine (1), and then insert the puncture needle (3A) of the dispensing needle (3) into the liquid bag (B) and the end of the powder injection medicine bottle (b), step on the right switch (4A) of the foot pedal, the main unit (1) will move the peristaltic hose (3B) of the dispensing needle (3) forward, and put the liquid bag in the direction indicated by the arrow in the figure The liquid in (B) is sucked into the medicine bottle (b), and the medicine powder is dissolved into the medicine liquid.

Fig. 5 is a schematic diagram of the liquid back-suction work of the present invention, the left switch (4B) is stepped on, and the pump head (2) of the host machine reversely moves the peristaltic hose (3B) of the dispensing needle (3), as shown in the flow direction of the arrow in the figure Suck back the medicinal liquid in the medicine bottle (b) into the liquid bag (B) to complete the dispensing. The operator only needs to continuously puncture and replace the medicine bottle (b) with both hands to perform the dispensing operation continuously.

The above-mentioned dispensing device and dispensing method can greatly improve the dispensing efficiency and speed by using hands and feet together, and reduce hand contamination from the outside world, especially suitable for the dispensing needs of hospitals for centralized, rapid and large-scale dispensing and aseptic purification.

Claims (3)

1. the round-trip drawing-in type dispensation apparatus of the foot-operated control of one kind and dosage, it is characterized in that：The present apparatus by host (1), make up a prescription Needle (3) and pedal control switch (4) are constituted, and when making up a prescription, liquid bottles are inserted into respectively with dispensing needle (3) both ends piercing needle (3A) (B) it is placed in host pump head (2) with medicine bottle (b) end, dispensing needle (3) wriggling hose (3B), foot steps on the right side of pedal control switch (4) It switchs (4A), the liquid in fluid bag (B) is pumped to medicine bottle by host pump head (2) forward direction wriggling dispensing needle wriggling hose (3B) (b) in, after medicinal powder dissolving, foot steps on the left-handed opening (4B) of pedal control switch (4), and host pump head (2) is reversely wriggled dispensing needle Wriggling hose (3B) will can be completed in liquid (b) resorption to fluid bag (B) and make up a prescription；Operator's both hands are only needed constantly to puncture and be replaced Medicine bottle (b) can be carried out continuously dispensing operation；This semi-automatic dispensation apparatus of using both hands and feet, can greatly simplify dispensing operation, improve Dispensing efficiency and speed reduces hand by outside contamination, and being suitble to hospital to concentrate, rapid, high volume makes up a prescription and sterile purification makes up a prescription Demand.

2. a kind of ride according to claim 1 controls round-trip drawing-in type dispensation apparatus and dosage, it is characterized in that：Foot It steps on control switch (4) to be made of right switch (4A) and left-handed opening, for this switch by foot control switches break-make, foot steps on right switch (4A) The positive wriggling of host (1) is controlled, foot steps on left-handed opening (4B) control host and reversely wriggles, and stepping on pedal control switch (4) by foot can Realize that forward and reverse wriggling of host pump head (2) completes liquid transfer of the fluid bag (B) between medicine bottle (b).

3. a kind of ride according to claim 1 controls round-trip drawing-in type dispensation apparatus and dosage, it is characterized in that：Match What medicine needle (3) was only made of wriggling hose (3B) and both ends piercing needle (3A), it is simple in structure, it is of low cost, convenient for disposable It uses.