CN108210332A - A kind of chemotherapeutics mixing arrangement - Google Patents

Abstract

A kind of chemotherapeutics mixing arrangement, including annular connecting seat, upper contact pin, lower contact pin, flow valve, from top to bottom there are one through-holes in the middle part of connecting seat, upper contact pin, lower contact pin are separately mounted to annular connecting seat middle through-hole upper and lower ends, laterally there are one cylindrical grooves in the middle part of connecting seat, flow valve includes spring, piston, push rod, installation lid, handle, from top to bottom there are one through-hole in the middle part of piston, spring is placed in cylindrical groove left end, and push rod left part is mounted on piston right end, installation lid is mounted on the right end of cylindrical groove, and taper knob is on push rod right-hand end.The utility model product, which are packed into sterile bag, to be preserved for use, due to all being made of medical grade sterilizable material, can prevent material from causing health effect to patient in itself.In admixing medical solutions, medicinal powder whole process, when upper and lower contact pin conveying liquid, is not exposed in air, it is therefore prevented that pollution of the outside air bacterium to drug mixture, and grasp medicinal liquid flow can be facilitated, based on above-mentioned, so with good application prospect.

Description

A kind of chemotherapeutic drug mixing device

technical field

The invention relates to the field of medical equipment, in particular to a chemotherapeutic drug mixing device.

Background technique

In the medical field, when treating tumors and conventional diseases, it is often necessary to mix therapeutic powder and liquid medicine, and then inject the mixed medicine into the human body through a syringe or an infusion set. The existing method of mixing medicinal liquid and medicinal powder is mainly to extract the medicinal liquid from the medicinal liquid bottle through a syringe, and then inject the medicinal liquid into the medicinal powder bottle for mixing and dilution; since the amount of medicinal liquid drawn by the syringe is limited each time, when it is necessary to When a large dose of medicinal liquid is drawn out and input into the powder bottle, it often requires several cumbersome operations to meet the needs; in fact, due to the particularity of the medical industry, the requirement for sterility is very high. There is a big disadvantage of the liquid, because the injection needle will be exposed to the air before being inserted into the powder bottle after pumping the medicine liquid, which will easily cause the injection needle to be infected by bacteria in the surrounding air. After the injection needle is inserted into the powder box, the mixed medicine in the powder box will be contaminated. Bacterial infection, which leads to an increase in the risk of infection of harmful bacteria after the mixed medicine is injected into the patient's body. When the injection needle repeatedly draws the medicine and injects it into the powder box, the probability of bacterial infection in the patient's body is even greater.

Contents of the invention

In order to overcome the disadvantage that there is no suitable tool in the medical field, which can conveniently mix the medicine powder in the medicine powder box and the medicine liquid in the medicine liquid box, which will cause the patient to be infected with harmful bacteria, the invention provides a method for mixing medicine powder and medicine liquid in the medicine powder box When the medicine is in the box, insert the lower pin into the medicine powder box and the upper pin into the medicine liquid box, the medicine liquid in the medicine liquid box can automatically flow into the medicine powder box, and it is also convenient to control the flow of medicine powder by controlling the flow valve The dosage of the liquid medicine in the box can not only meet the requirement of not contacting the outside air when the liquid medicine and the powder are mixed, reduce the risk of the patient being infected with harmful bacteria, but also facilitate the control of the amount of liquid medicine flowing into the medicine powder box. device.

The technical solution adopted by the present invention to solve its technical problems is:

A chemotherapeutic drug mixing device, which is characterized in that it includes an annular connecting seat, an upper pin, a lower pin, and a flow valve. There is a through hole in the middle of the connecting seat from top to bottom. The upper and lower ends of the through hole in the middle of the seat, the inner openings of the upper pin and the lower pin are connected with the through hole in the middle of the connecting seat from top to bottom. There is a cylindrical groove in the middle of the connecting seat, and the right part of the cylindrical groove is open Structure, the inside of the right end of the cylindrical groove has an internal thread, the upper and lower ends of the middle of the cylindrical groove have an opening respectively, the upper and lower ends of the middle of the cylindrical groove communicate with the through hole in the middle of the connecting seat from top to bottom, and the flow valve Including spring, piston, push rod, installation cover, handle, there is a through hole in the middle of the piston from top to bottom, there is an opening in the middle of the installation cover, the left end of the installation cover has external threads, and the spring is placed in the left end of the cylindrical groove. The left part of the push rod is installed on the right end of the piston, the right part of the push rod passes through the opening in the middle of the installation cover, and the external thread on the left part of the installation cover is screwed into the internal thread on the inner side of the right end of the cylindrical groove, and the installation cover is installed in the cylindrical groove The right end of the handle is set on the right end of the push rod.

The annular connecting seat, the piston of the flow valve, the push rod, the installation cover and the handle are made of medical grade silicone material.

The upper pin, the lower pin and the flow valve spring are made of stainless steel.

The upper part to the middle of the upper pin is a bevel structure, and the lower part to the middle of the lower pin is a bevel structure.

When the upper pin and the lower pin are respectively installed at the upper and lower ends of the through hole in the middle of the ring connection seat, the lower end of the upper pin is inserted into the upper end of the through hole in the middle of the ring connection seat while it is heated, and the upper end of the lower pin is inserted in a heated state. The lower end of the through hole in the middle of the annular connection seat, the lower end of the upper pin, the upper end of the lower pin and the through hole in the middle of the annular connection seat are in an interference fit state,

The right end of the flow valve piston has a circular installation groove, the left part of the push rod is a circular structure, the outer diameter of the circular structure on the left part of the push rod is larger than the inner diameter of the circular installation groove at the right end of the piston, and the left part of the push rod is circular. The shape part is set in the circular mounting groove at the right end of the piston, and the circular part at the left part of the push rod and the circular mounting groove at the right end of the piston are in an interference fit state.

There is an opening in the middle of the handle of the flow valve, and the outer diameter of the right end of the push rod is larger than the outer diameter of the opening in the middle of the handle. When the handle is heated, the opening is placed on the right side of the push rod, and there is an interference between the handle and the push rod. Mate state.

The beneficial effects of the invention are: the finished product of the new type is put into an aseptic bag and stored for use, and since it is all made of medical-grade aseptic materials, it can prevent the materials themselves from causing health effects on patients. When in use, after unpacking the aseptic bag, insert the upper pin into the rubber cover at the lower end of the liquid medicine box, insert the lower pin into the rubber cover at the upper end of the powder box; then press the handle of the flow valve to the left with your fingers, when After the middle part of the piston passes through the through hole from top to bottom and the through hole in the middle part of the connecting seat, the liquid medicine in the liquid medicine box will flow into the powder box through the through hole in the middle part of the connecting seat, the through hole in the middle part of the piston, and the upper and lower pins. After the liquid medicine is suitable, the operator releases the handle, so under the elastic force of the spring, the piston moves to the right, the through hole in the middle of the piston no longer communicates with the through hole in the middle of the connecting seat, and the liquid medicine no longer flows into the powder at the lower end. In the box, the amount of liquid medicine required by the operator is reached. During the whole process of the new model, the upper and lower pins will not be exposed to the air when transporting the liquid medicine, which effectively prevents the pollution of the medicine mixture by bacteria in the outside air, and can easily control the flow of the liquid medicine. Based on the above, the new model has good application prospect.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing and embodiment.

Figure 1 is a schematic diagram of the overall structure of the present invention.

Fig. 2 is a schematic diagram of the structure of the present invention, the powder box and the liquid medicine box.

Fig. 3 is a structural schematic diagram of the piston, push rod and handle of the flow valve of the present invention.

Detailed ways

As shown in Figures 1, 2, and 3, a chemotherapeutic drug mixing device includes an annular connecting seat 1, an upper pin 2, a lower pin 3, and a flow valve 4. There is a through hole 1 in the middle of the connecting seat 1 from top to bottom. -1, the upper pin 2 and the lower pin 3 are respectively installed at the upper and lower ends of the through hole 1-1 in the middle of the circular connection seat, the upper pin 2 and the lower pin 3 have internal openings and the middle part of the connecting seat from top to bottom. The hole 1-1 is connected, and there is a cylindrical groove 1-2 in the middle of the connecting seat. The right part of the cylindrical groove 1-2 is an open structure, and the inner side of the right end of the cylindrical groove 1-2 has an internal thread. There are openings 1-3 and 1-4 at the upper and lower ends of the middle part respectively. The openings 1-3 and 1-4 at the upper and lower ends of the middle part of the cylindrical groove communicate with the through hole 1-1 from top to bottom in the middle part of the connecting seat. The valve includes a spring 4-1, a piston 4-2, a push rod 4-3, an installation cover 4-4, and a handle 4-5. The middle part of the piston 4-1 has a through hole 4-6 from top to bottom, and the installation cover 4- There is an opening in the 4 middle part, the left end of the mounting cover 4-4 has an external thread, the spring 4-1 is placed in the left end of the cylindrical groove 1-2, and the left end of the push rod 4-3 is installed on the right end of the piston 4-2. The right part of the push rod 4-3 passes through the opening in the middle part of the mounting cover 4-4, and the external thread on the left part of the mounting cover 4-4 is screwed into the internal thread on the inner side of the right end of the cylindrical groove 1-2, and the mounting cover 4-4 Be installed in the right end of cylindrical groove 1-2, and handle 4-5 is enclosed within on the right end of push rod 4-3.

As shown in Figures 1, 2, and 3, the annular connecting seat 1, the piston 4-2 of the flow valve, the push rod 4-3, the mounting cover 4-4, and the handle 4-5 are made of medical grade silicone. The upper pin 2, the lower pin 3 and the flow valve spring 4-1 are made of stainless steel. The upper part to the middle of the upper pin 2 is a slope structure, and the lower part to the middle of the lower pin 3 is a slope structure. When the upper pin 2 and the lower pin 3 are respectively installed at the upper and lower ends of the through hole 1-1 in the middle of the ring connector, the lower end of the upper pin 2 is inserted into the upper end of the through hole 1-1 in the middle of the ring connector when it is heated, and the lower pin The upper end of the needle 3 is inserted into the lower end of the through hole 1-1 in the middle of the annular connection seat under heating, and the lower end of the upper pin 2, the upper end of the lower pin 3 and the through hole 1-1 in the middle of the annular connection seat are in an interference fit state , The right end of the flow valve piston 4-2 has a circular installation groove 4-7, the left part of the push rod 4-3 is a circular structure, and the outer diameter of the circular structure part on the left part of the push rod 4-3 is circular than the right end of the piston The inner diameter of the installation groove 4-7 is 1mm larger, the circular part of the left part of the push rod 4-3 is set in the circular installation groove 4-7 at the right end of the piston, and the circular part of the left part of the push rod 4-3 and the circular part of the right end of the piston are installed Grooves 4-7 are in an interference fit state. There is an opening in the middle of the handle 4-5 of the flow valve, and the outer diameter of the right end of the push rod 4-3 is larger than the outer diameter of the opening in the middle of the handle 4-5. On the side end, the handle 4-5 and the push rod 4-3 are in an interference fit state.

As shown in Figures 1, 2, and 3, the finished product of the present invention is stored in a sterile bag and stored for use. Since it is all made of medical-grade sterile materials, it can prevent the materials themselves from causing health effects on patients. When in use, after disassembling the aseptic bag, insert the upper pin 2 into the rubber cover at the lower end of the liquid medicine box 5, and insert the lower pin 3 into the rubber cover at the upper end of the powder box 6; 4-5 is pressed to the left, and the piston 4-2 overcomes the elastic force of the spring 4-1 and moves to the left. The liquid medicine in the liquid medicine box 5 will flow into the medicine powder box 6 through the through hole 1-1 in the middle part of the connecting seat, the through hole 4-6 in the middle part of the piston, the upper pin 2, and the lower pin 3. In actual operation, the operator's left hand Squeeze the liquid medicine box 5, and the liquid medicine in the liquid medicine box 5 will flow out into the medicine powder box 6. Since the lower end of the lower pin 3 and the medicine powder in the medicine powder box 6 and the height of the flowing medicine liquid are separated by a certain distance, the medicine powder The liquid medicine in the box 6 will not flow back into the liquid medicine box 5. When the liquid medicine at the lower end of the powder box 6 is suitable, the operator releases the handle 4-5, so, under the elastic force of the spring 4-1, the piston 4-2 moves to the right, the through hole 4-6 in the middle part of the piston no longer communicates with the through hole 1-1 in the middle part of the connecting seat, and the medicinal solution no longer flows into the medicine powder box 6 at the lower end, reaching the required medicinal solution amount of the operator. When the operator needs to extract the mixed medicine powder and liquid medicine in the medicine powder box, insert the syringe needle or infusion needle into the rubber lower cover at the bottom of the medicine box to extract the mixed medicine powder and medicine liquid in the medicine powder box. During the whole process of the new model, the upper and lower pins will not be exposed to the air when transporting the liquid medicine, which effectively prevents the pollution of the medicine mixture by bacteria in the outside air, and can easily control the flow of the liquid medicine. Based on the above, the new model has good application prospect.

It should be noted that this embodiment is a preferred example of the present invention, and is not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. within the scope of the principle of the present invention should be included in the protection scope of the present invention .

Claims (4)

1. A chemotherapeutic drug mixing device, characterized in that it includes an annular connection seat, an upper pin, a lower pin, and a flow valve. There is a through hole in the middle of the connecting seat from top to bottom, and the upper pin and the lower pin are respectively installed on the The upper and lower ends of the through hole in the middle of the ring-shaped connecting seat have a horizontal cylindrical groove in the middle of the connecting seat. The right part of the cylindrical groove is an open structure. There is an opening, the upper and lower ends of the middle of the cylindrical groove communicate with the through hole in the middle of the connecting seat from top to bottom, the flow valve includes a spring, piston, push rod, installation cover, handle, and there is a middle part of the piston from top to bottom. Through hole, there is an opening in the middle of the installation cover, the left end of the installation cover has an external thread, the spring is placed in the left end of the cylindrical groove, the left part of the push rod is installed on the right end of the piston, and the right part of the push rod passes through the opening in the middle of the installation cover hole, the mounting cover is installed on the right end of the cylindrical groove, and the handle is sleeved on the right end of the push rod. 2. A chemotherapeutic drug mixing device according to claim 1, characterized in that the annular connecting seat, the piston of the flow valve, the push rod, the installation cover, and the handle are made of medical grade silicone. 3. A chemotherapeutic drug mixing device according to claim 1, characterized in that the upper pin, the lower pin and the flow valve spring are made of stainless steel. 4 . The chemotherapeutic drug mixing device according to claim 1 , characterized in that the upper part to the middle of the upper needle is a slope structure, and the lower part to the middle of the lower needle is a slope structure.