CN104800079A - Sealed medicine transfer device - Google Patents

Abstract

The airtight drug transfer device disclosed by the invention includes a clamping cap for clamping the mouth of the vial and a joint for connecting with the liquid outlet of the needle-free syringe. When the clamping cap is connected to the vial and the joint is connected to the needleless When the liquid outlet of the syringe is used, the inner cavity of the drug transfer device forms a liquid medicine channel for the liquid to enter and exit. When the needle-free syringe is separated from the joint, the liquid medicine channel is closed, and it also has an air channel to balance the pressure inside and outside the vial. The device is used in dispensing to avoid drug splashing and protect medical staff to a certain extent; there is no needle in the process of drug preparation, so that medical staff are prevented from being stabbed by injection needles; after the drug preparation is completed, the vial is in a sealed state and can be stored airtight For other patients to use, to avoid drug waste.

Description

A kind of airtight drug transfer device

technical field

The invention relates to a medical device, in particular to a drug transfer device.

technical background

At present, the dispensing mode of intravenous infusion in most hospitals in China adopts the traditional dispensing method: use a syringe with a needle to draw an appropriate amount of injection liquid, squeeze the rubber stopper of the vial with the inclined surface of the needle tip upwards, and then verticalize the syringe to puncture the rubber stopper , inject the injection solution, shake until completely dissolved. Limited by time and space, nurses usually dispense medicines in open treatment rooms with incomplete air purification devices. However, for high-risk drugs, such as chemotherapy drugs (antibiotics, anti-tumor drugs, etc.), any tiny drug Liquid spillage will cause serious injury to the health of medical staff. With the traditional method of dispensing, even in a biological safety cabinet, the risk of drug droplet overflow and injection needle injury cannot be avoided, especially in the process of cytotoxic drug preparation, if powder mist is generated (the spilled drug may produce aerosol / vaporization), surgical masks have no protective effect on it, and will cause certain harm to medical staff.

Contents of the invention

The purpose of the present invention is to provide a closed drug transfer device, which can realize the closed needle-free transfer process from the medicine bottle to the syringe and from the syringe to the medicine bottle, prevent the medicine from splashing and escaping, and reduce the harm to the medical staff.

The purpose of the present invention is achieved through the following technical solutions: a closed drug transfer device, including a clamping cap for clamping the mouth of a vial, a joint for connecting with the outlet of a needle-free syringe, when the clamping cap When the vial is connected and the connector is connected to the liquid outlet of the needle-free syringe, a drug solution channel for liquid in and out is formed in the inner cavity of the drug transfer device. When the needle-free syringe is separated from the connector, the drug solution channel is closed, and it also has the function of balancing the internal and external pressure of the vial. air channel.

As a preferred method, the clamping cap and the outer wall of the puncturer are integrally structured, and the puncturer is plunged into the vial after clamping the vial; The upper part of the device is glued together. There is a core rod in the inner cavity of the upper cover. The upper part of the core rod is the joint sealing part. It is the connection part of the puncture device, which is inserted into the drug channel of the puncture device. There is a boss on the core rod between the joint sealing part and the connection part of the puncture device to cooperate with the inner cavity wall of the upper cover, and the elastic part is arranged between the boss and the puncture device. At the top, the drug channel in the center of the core rod leads to the small hole and the drug channel of the trocar.

Further, the elastic component is a spring.

Further, the air channel is provided on the piercer, and an air filter is provided at the air contact end of the air channel.

Further, a cap is provided outside the air channel.

The advantage of the present invention is that the use of the airtight drug transfer device of the present invention can avoid drug splashing and play a certain protective role for medical staff; there is no needle in the process of drug preparation, so that medical staff can be prevented from being stabbed by injection needles; after the drug preparation is completed, The vial is in an airtight state and can be stored airtightly for use by other patients to avoid drug waste.

Description of drawings

Fig. 1 is a cross-sectional view of the airtight drug transfer device of the present invention.

Fig. 2 is a cross-sectional view of the airtight drug transfer device of the present invention during use.

In the figure, 1 upper cover, 11 joint, 2 core rod, 21 joint sealing part, 22 small hole, 23 drug channel, 24 boss, 25 puncture device connection part, 3 spring, 4 puncture device, 41 air filter valve, 42 drug channels, 43 air channels, 5 snap-on covers.

Detailed ways

This example provides a preferred embodiment of the present invention, but the present invention is not limited thereto, and simple structural changes made by those skilled in the art according to the concept of the present invention are within the protection scope of the present invention.

The present invention is described with reference to FIG. 1 and FIG. 2 . The airtight drug transfer device includes an upper cover 1, a core rod 2, a spring 3, a piercer 4, and a clamping cover 5. The clamping cap 5 and the outer wall of the puncture device 4 are integrally structured, and the puncture device 4 is plunged into the vial after clamping the vial. The upper cover 1 and the upper part of the piercer 4 are glued together, the joint 11 connected with the liquid outlet of the needle-free syringe is arranged on the top of the upper cover 1 , and the core rod 2 is arranged in the inner cavity of the upper cover 1 . The upper part of the mandrel 2 is a joint sealing part 21, and the joint sealing part 21 is provided with a transverse small hole 22, which can be inserted into the inner cavity of the joint 11 to cooperate with the inner cavity wall of the joint 11, and the lower part of the mandrel 2 is a trocar connecting part 25, which is inserted into the trocar In the drug channel 42 of 4, the core rod between the joint sealing part 21 and the puncturer connecting part 25 is provided with a boss 24 that cooperates with the inner cavity wall of the upper cover 1, and the spring 3 is arranged on the top of the boss 24 and the puncturer 4 , the drug channel 23 in the center of the mandrel leads to the small hole 22 and the drug channel 42 of the trocar.

The piercer 4 is provided with an air channel 43 , an air filter 41 is provided at the air contact end of the air channel 43 , and a cap is provided outside the air filter 41 .

When dispensing medicine, insert the piercer 4 into the rubber stopper of the vial, clamp the cap 5 to clamp the bottle mouth, and then connect the syringe to the joint 11 on the upper cap 1, at this time the spring 3 is compressed, and the core rod 2 is pushed in Inside the cavity of the upper cover 1, the cavity part inside the upper cover 1 forms a passage with the small hole 22 on the core rod 2, the drug channel 23, and the drug channel 42 on the puncturer, and can be sucked and injected by pushing and pulling the syringe The liquid medicine, the air channel 43 and the air filter valve 41 play the role of filtering air and balancing internal and external pressure. After dispensing, the syringe is separated from the joint 11, and the core rod 2 is reset under the action of the spring 3, the sealing part 21 of the joint enters the inner cavity of the joint 11, and the passage is closed. The air filter 41 is provided with a cap to seal the vial, which is convenient for the preservation of the medicinal solution and is applied to other patients.

Claims (6)

1. A kind of airtight drug transfer device, it is characterized in that: comprise the clamp cap that is used for clamping with vial bottleneck, the joint that is used to be connected with the liquid outlet of needleless syringe, when clamp cap connects vial, joint When the liquid outlet of the needle-free syringe is connected, a drug solution channel for liquid in and out is formed in the inner cavity of the drug transfer device. When the needle-free syringe is separated from the joint, the drug solution channel is closed, and it also has an air channel to balance the pressure inside and outside the vial. 2. The airtight drug transfer device according to claim 1, characterized in that: the clamping cap and the outer wall of the puncturer are integrally structured, and the puncturer is inserted into the vial after clamping the vial; it is connected to the liquid outlet of the needle-free syringe The joint is set on the top of the upper cover, and the upper cover and the upper part of the trocar are glued together. There is a core rod in the inner cavity of the upper cover. The upper part of the core rod is the joint sealing part. The inner cavity cooperates with the inner cavity wall of the joint, and the lower part of the mandrel is the connecting part of the trocar, which is inserted into the drug channel of the trocar, and the core rod is provided with a protrusion that cooperates with the inner cavity wall of the upper cover between the sealing part of the joint and the connecting part of the trocar. platform, the elastic component is arranged on the top of the boss and the trocar, and the drug channel in the center of the core rod leads to the small hole and the drug channel of the trocar. 3. The airtight drug transfer device according to claim 2, wherein the elastic member is a spring. 4. The airtight drug transfer device according to claim 2, characterized in that: the air channel is arranged on the piercer. 5. The airtight drug transfer device according to claim 4, characterized in that: an air filter is provided at the air contact end of the air channel. 6. The airtight drug transfer device according to claim 4, characterized in that: a cap is arranged outside the air channel.