CN216456365U

CN216456365U - Special syringe of configuration hematology department chemotherapy medicine

Info

Publication number: CN216456365U
Application number: CN202122432010.0U
Authority: CN
Inventors: 魏雯婷; 付阿丹; 王红祥; 许琍文; 王莉; 丁婷; 易兰; 陈莉
Original assignee: Central Hospital of Wuhan
Current assignee: Central Hospital of Wuhan
Priority date: 2021-10-10
Filing date: 2021-10-10
Publication date: 2022-05-10
Anticipated expiration: 2031-10-10

Abstract

The utility model discloses a special injector for preparing a hematology chemotherapy drug, which comprises an outer sleeve and a plurality of partition plates axially arranged in the outer sleeve, wherein the partition plates are mutually crossed and divide the interior of the outer sleeve into a mixing chamber and a plurality of suction chambers, the suction chambers are communicated with the mixing chamber through mixing holes, and the mixing holes are provided with one-way valve mechanisms; the mixing chamber is internally provided with a first piston, the end part of the mixing chamber penetrates through the outer sleeve to be connected with an injection needle, the suction chamber is internally provided with a second piston, the end part of the suction chamber penetrates through the outer sleeve to be connected with a suction tubule, and the suction tubule is provided with a sealing valve. Utility model is provided with a plurality of suction chambers and a mixing chamber inside the cylinder, and multiple liquid sets up respectively in sucking the chamber to circulate to mixing chamber in from sucking the chamber through the check valve and mix, and directly pour into the human body into after the misce bene, realized medicine configuration and the relative seal of mixing, reduced the probability that the medicine exposes in the air.

Description

Special syringe of configuration hematology department chemotherapy medicine

Technical Field

The utility model relates to the technical field of injectors, in particular to a special injector for preparing a hematology chemotherapy drug.

Background

Chemotherapy drugs are mostly cytotoxic drugs, and these drugs can inhibit or kill tumor cells during the growth and reproduction of tumor cells, and also have an effect on normal cells. When medical staff dispenses and injects medicines, the sealing performance of a dispenser or an injector is not enough, so that some medicine particles escape, aerosol or aerosol containing toxic particles is formed in the air, and the medicine particles are easily absorbed by respiratory tract or skin in an exposed environment, so that the health of the medical staff is greatly influenced.

The existing chemotherapy drug preparation technology can adopt a sealed injector. The sealed injector is generally provided with a sealing valve at the tip end of the injector, the sealing valve is closed after liquid is extracted, so that the probability of volatilization of the medicine is reduced, but the medicine is required to be injected into solid medicine or liquid medicine and then mixed uniformly, the mixture is extracted out through the injector, and trace solution is inevitably splashed out in the operation of mixing the sealing valve with multiple times of injection, so that medical care personnel are affected.

Disclosure of Invention

The utility model aims to provide a special syringe for preparing a hematology chemotherapy drug, which aims to solve the technical problem of poor sealing property of the drug in the preparation process in the prior art.

In order to solve the technical problems, the utility model specifically provides the following technical scheme:

the utility model provides a special injector for preparing a hematology chemotherapy drug, which comprises an outer-layer sleeve and a plurality of partition plates axially arranged in the outer-layer sleeve, wherein the partition plates are mutually crossed and divide the interior of the outer-layer sleeve into a mixing chamber and a plurality of suction chambers, the suction chambers are communicated with the mixing chamber through mixing holes, and the mixing holes are provided with one-way valve mechanisms;

mixing chamber inside is provided with first piston and tip and passes outer muffjoint has the syringe needle, it all passes all to be provided with second piston and tip inside the suction chamber outer muffjoint has the absorption tubule, be provided with the seal valve on the absorption tubule, work as the second piston slides extremely when absorbing the tubule the check valve mechanism is opened under pressure the mixing hole.

In a preferred embodiment of the present invention, the total volume of the mixing chamber is greater than the sum of the volumes of all the drawing chambers.

As a preferable scheme of the present invention, the one-way valve mechanism includes a baffle plate hinged to the partition plate, the baffle plate is disposed in the mixing chamber, the baffle plate is provided with a rubber ring, and the rubber ring is clamped and disposed inside an edge of the mixing hole.

As a preferred scheme of the present invention, the first piston includes a first rubber head disposed inside the mixing chamber, the first rubber head is sleeved with a first piston rod, the first piston rod is axially and vertically disposed inside the mixing chamber, one end of the first piston rod penetrates through the mixing chamber and is provided with a first handle, and the first rubber head sleeved on the other end of the first piston rod is matched with the radial shape of the inner wall of the mixing chamber.

As a preferable scheme of the present invention, the second piston includes a second rubber head disposed inside the suction chamber, the second rubber head is sleeved with a second piston rod, the second piston rod is axially and vertically disposed inside the suction chamber, one end of the second piston rod penetrates through the suction chamber and is provided with a second handle, and the second rubber head sleeved on the other end of the second piston rod is matched with the radial shape of the inner wall of the suction chamber.

As a preferable aspect of the present invention, the mixing hole is provided in an end portion of the mixing chamber where the injection needle is mounted.

Compared with the prior art, the utility model has the following beneficial effects:

the utility model is characterized in that a plurality of suction chambers for sucking liquid medicine and a mixing chamber for mixing the liquid medicine are arranged in a needle cylinder of the injector, each suction chamber is provided with a piston and a communicating pipe with a sealing function, a single mixing chamber is provided with a piston and an injection needle, each suction chamber is connected with the mixing chamber through a one-way valve, the one-way valves are closed when the plurality of suction chambers suck the liquid and are opened when the suction chambers release the liquid, a plurality of liquids are circulated to the mixing chambers to be mixed, and are directly injected into a human body through the piston and the injection needle after being uniformly mixed, in the injector, the suction, mixing and injection of the medicine are all arranged in the same sealed needle cylinder, so that the relative sealing of the configuration and mixing of the medicine is realized, the probability of exposing the medicine in the air is reduced, and the health of medical care personnel is protected.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

FIG. 1 is a schematic diagram of a special syringe for dispensing chemotherapeutic agents according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a one-way valve mechanism according to an embodiment of the present invention.

The reference numerals in the drawings denote the following, respectively:

1-an outer sleeve; 2-a partition plate; 3-a mixing chamber; 4-a suction chamber; 5-mixing holes; 6-one-way valve mechanism; 7-a first piston; 8-syringe needle; 9-a second piston; 10-sucking thin tube; 11-a sealing valve;

601-a baffle; 602-a rubber ring; 701-a first glue head; 702-a first piston rod; 703-a first handle; 901-a second glue head; 902-a second piston rod; 903-second handle.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 and 2, the present invention provides a special syringe for dispensing a hemo-therapy drug, comprising an outer sleeve 1 and a plurality of partition plates 2 axially disposed in the outer sleeve 1, wherein the partition plates 2 are mutually crossed and divide the interior of the outer sleeve 1 into a mixing chamber 3 and a plurality of suction chambers 4, the suction chambers 4 are communicated with the mixing chamber 3 through mixing holes 5, and a one-way valve mechanism 6 is disposed on each of the mixing holes 5;

mixing chamber 3 is inside to be provided with first piston 7 and tip and passes outer sleeve 1 is connected with syringe needle 8, it all passes all to be provided with second piston 9 and tip inside to absorb chamber 4 outer sleeve 1 is connected with absorbs tubule 10, it is being close to absorb tubule 10 setting the one end of syringe needle 8, be provided with seal valve 11 on the absorption tubule 10, work as second piston 9 slides extremely when absorbing tubule 10 check valve mechanism 6 opens under pressure mixing hole 5.

The syringe is used as follows:

1. opening the closed valve 11, respectively placing the end parts of the suction tubules 10 in medicine bottles of various medicines, respectively stretching the second pistons 9, and respectively sucking a proper amount of medicines into the suction chambers 4;

2. the airtight valve 11 that will absorb on the tubule 10 seals, extrudees second piston 9 after sealing for the medicine flows out from mixing hole 5, draws open first piston 7 simultaneously, makes in the medicine gets into mixing chamber 3, and the vibration mixes, and final second piston 9 resumes to initial condition:

3. keeping the position of the second piston 9 unchanged, the injection needle 8 is injected into the patient, and the first piston 7 is pressed, so that the mixed medicine enters the patient from the injection needle 8 from the mixing chamber 3.

In this embodiment, in order to ensure that the medicine in the mixing chamber 3 has a sufficient volume to be stored, the mixing chamber 3 may be surrounded by the drawing chambers 4, or may be arranged side by side, and the total volume of the mixing chamber 3 is greater than the sum of the volumes of all the drawing chambers 4.

In this embodiment, in order to ensure that the medicine in the suction chamber 4 smoothly enters the mixing chamber 3, and the medicine in the mixing chamber 3 cannot flow back from the mixing hole 5, the one-way valve mechanism 6 includes a baffle 601 hinged to the partition plate 2, the baffle 601 is disposed in the mixing chamber 3, a rubber ring 602 is disposed on the baffle 601, and the rubber ring 602 is engaged with and disposed inside the edge of the mixing hole 5.

When the suction chamber 4 sucks the medicine, the rubber ring 602 is in an initial state, namely, the rubber ring is clamped in the mixing hole 5, and when the second piston 9 is pulled, the air pressure in the suction chamber 4 is reduced, so that the suction of the rubber ring 602 and the mixing hole 5 is tighter; when the suction chamber 4 delivers liquid to the mixing chamber 3, the medicine in the suction chamber 4 impacts the rubber ring 602 under the pressure of the second piston 9, so that the rubber ring 602 is pulled out from the inside of the mixing hole 5, the baffle 601 is separated from the partition plate 2, and the mixing hole 5 is opened; when mixing chamber 3 injection liquid, second piston 9 in the suction chamber 4 receives the extrusion to get back to initial position, sets up during outer sleeve 1 bottom, and the liquid content in the mixing chamber 3 reaches the biggest, extrudes first piston 7, and the baffle 601 of the liquid extrusion perk in the mixing chamber 3 for rubber circle 602 is inside returning to mixing hole 5 under the extrusion, prevents the liquid medicine backward flow.

In this embodiment, the first piston 7 includes a first glue head 701 disposed inside the mixing chamber 3, the first glue head 701 is sleeved with a first piston rod 702, the first piston rod 702 is axially and vertically disposed inside the mixing chamber 3, one end of the first piston rod 702 penetrates through the mixing chamber 3 to be installed with a first handle 703, and the first glue head 701 sleeved on the other end of the first piston rod 702 is matched with the radial shape of the inner wall of the mixing chamber 3.

When the suction chamber 4 sucks liquid, the first rubber head 701 is arranged at the bottom of the mixing chamber 3, which is the initial state of the first piston rod 702, and the first rubber head 701 extrudes the baffle 601 at the moment, so that the rubber ring 602 is firmly adsorbed on the mixing hole 5, and the liquid medicine is prevented from being influenced by each other.

In this embodiment, the second piston 9 includes a second glue head 901 disposed inside the suction chamber 4, the second glue head 901 is sleeved with a second piston rod 902, the second piston rod 902 is axially and vertically disposed inside the suction chamber 4, one end of the second piston rod 902 penetrates through the suction chamber 4 and is provided with a second handle 903, and the second glue head 901 sleeved on the other end of the second piston rod 902 is matched with the radial shape of the inner wall of the suction chamber 4.

The second is glued first 901 and is setting up when absorbing cavity 4 bottom, for the state of setting for first, and the side of this moment second gluey head 901 is stifled to be established on mixing hole 5, when absorbing cavity 4 and injecting liquid to mixing cavity, promote second piston rod 902 and make the second glue head 901 slowly to impel to the cavity bottom, absorb the inside liquid medicine of cavity 4 and flow into mixing cavity 3, when mixing cavity 3's first piston rod 702 stimulates to the biggest, the second is glued first 901 and is stifled to be established on mixing hole 5, further prevent when injecting the liquid medicine to the human body that the liquid medicine refluxes to absorbing cavity 4.

In this embodiment, the mixing hole 5 is provided in the end of the mixing chamber 3 where the injection needle 8 is mounted.

Through the special syringe of configuration chemotherapy medicine of this embodiment, can realize the airtight extraction of multiple liquid medicine to and airtight mixing under the condition of contacting external circulating air, and directly inject the human body by piston and syringe needle after mixing, in this syringe, absorption, the mixture and the injection of medicine all set up in same inclosed syringe, realized medicine configuration and mixed closed relatively, reduced the probability that the medicine exposes in the air, the protection medical personnel are healthy.

The above embodiments are only exemplary embodiments of the present application, and are not intended to limit the present application, and the protection scope of the present application is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present application and such modifications and equivalents should also be considered to be within the scope of the present application.

Claims

1. The special injector for preparing the chemotherapy drugs for hematology is characterized by comprising an outer-layer sleeve (1) and partition plates (2) axially arranged in the outer-layer sleeve (1), wherein the partition plates (2) are mutually crossed and divide the interior of the outer-layer sleeve (1) into a mixing chamber (3) and an absorbing chamber (4), the absorbing chamber (4) is communicated with the mixing chamber (3) through mixing holes (5), and a plurality of mixing holes (5) are provided with one-way valve mechanisms (6);

mixing chamber (3) inside is provided with first piston (7) and tip and passes outer sleeve (1) is connected with injection needle (8), it all passes all to be provided with second piston (9) and tip inside chamber (4) to absorb outer sleeve (1) is connected with and absorbs tubule (10), it is provided with seal valve (11) on tubule (10) to absorb, works as second piston (9) slide extremely when absorbing tubule (10) one-way valve mechanism (6) is opened under pressure mixing hole (5).

2. A special syringe for dispensing haematological chemotherapeutic agents according to claim 1, characterised in that the total volume of said mixing chamber (3) is greater than the volume of said aspiration chamber (4).

3. The special syringe for dispensing hematology chemotherapy drugs according to claim 1, characterized in that the one-way valve mechanism (6) comprises a baffle (601) hinged on the separation plate (2), the baffle (601) is disposed in the mixing chamber (3), a rubber ring (602) is disposed on the baffle (601), and the rubber ring (602) is disposed inside the edge of the mixing hole (5) in a snap fit manner.

4. The special syringe for collocating the chemotherapy drugs in the hematology department according to the claim 1, characterized in that the first piston (7) comprises a first glue head (701) arranged inside the mixing chamber (3), the first glue head (701) is sleeved with a first piston rod (702), the first piston rod (702) is axially and vertically arranged inside the mixing chamber (3), one end of the first piston rod (702) penetrates through the mixing chamber (3) to be installed with a first handle (703), and the first glue head (701) sleeved on the other end of the first piston rod (702) is matched with the radial shape of the inner wall of the mixing chamber (3).

5. The special syringe for dispensing chemotherapy drugs in hematology department according to claim 1, characterized in that the second piston (9) comprises a second rubber head (901) disposed inside the suction chamber (4), the second rubber head (901) is sleeved with a second piston rod (902), the second piston rod (902) is axially and vertically disposed inside the suction chamber (4), one end of the second piston rod passes through the suction chamber (4) and is installed with a second handle (903), and the second rubber head (901) sleeved on the other end of the second piston rod (902) is matched with the radial shape of the inner wall of the suction chamber (4).

6. A special syringe for dispensing haematological chemotherapy drugs according to claim 1, characterized in that said mixing hole (5) is provided in the end of said mixing chamber (3) where said injection needle (8) is mounted.