CN111297683B

CN111297683B - Safe type liquid medicine translator

Info

Publication number: CN111297683B
Application number: CN202010202914.1A
Authority: CN
Inventors: 黄继鹏; 陈振鹏; 张景州; 秦宏平; 张庆军; 王书华
Original assignee: Jiangsu Suyun Medical Materials Co Ltd
Current assignee: Jiangsu Suyun Medical Materials Co Ltd
Priority date: 2020-03-20
Filing date: 2020-03-20
Publication date: 2021-05-07
Anticipated expiration: 2040-03-20
Also published as: CN111297683A; WO2021184568A1

Abstract

The invention relates to the field of medical equipment, in particular to a safe liquid medicine transfer device which comprises a body and a lower cover of a connecting piece, wherein a needle-shaped body is arranged on the body, and an air channel and a liquid channel are respectively arranged in the needle-shaped body; an exhaust cavity communicated with the gas channel is arranged in the body and is communicated with the atmosphere through the breathable water-blocking film body; the connecting piece lower cover is provided with a connecting part connected with the injector, and the connecting part is provided with a sealing structure which deforms under the extrusion of the injector to be communicated with the injector and the cavity. The safe liquid medicine transfer device can enable clinical dispensing personnel to simply and safely carry out dispensing and dosing work, the air exhaust design including the air exhaust cavity and the air-permeable water-blocking film body can skillfully balance the air pressure inside and outside the container, and meanwhile, the sealed design is realized by matching with the sealing structure, so that the liquid medicine can be effectively prevented from being sprayed outside, the waste of medicine is avoided, and the safety of the dispensing personnel is also protected.

Description

Safe type liquid medicine translator

Technical Field

The invention relates to the field of medical equipment, in particular to a safe liquid medicine transfer device.

Background

At present, a liquid medicine transfer device or a medicine adding device used clinically has a single function and only plays a role in transferring liquid medicine, but the problem that liquid medicine is sprayed out due to unbalanced internal and external air pressure during medicine preparation at present occurs, and potential threats exist to the health of medical care medicine dispensing personnel.

In view of the above, the inventor of the present invention has made extensive research and innovation based on practical experience and professional knowledge in many years of engineering application of such products and with the application of theory, in order to create a safe liquid medicine transfer device, which is more practical.

Disclosure of Invention

The invention aims to provide a safe liquid medicine transfer device, thereby effectively solving the problems in the background art.

In order to achieve the purpose, the invention adopts the technical scheme that:

a safety medical fluid transfer device comprising: the connector comprises a body and a lower cover of the connector, wherein a needle-shaped body is arranged on the body, and a gas channel and a liquid channel are respectively arranged in the needle-shaped body;

an exhaust cavity communicated with the gas channel is arranged in the body, and the exhaust cavity is communicated with the atmosphere through a breathable water-blocking film body;

the body with be provided with the cavity between the connecting piece lower cover, the cavity with liquid channel UNICOM, the connecting piece lower cover has the connecting portion of being connected with the syringe, connecting portion department is provided with seal structure, seal structure is in deformation and UNICOM under the extrusion of syringe and cavity.

Further, the body include with the installation department that the spicule is connected, and be used for realizing the major structure of installation department, the tip of major structure is provided with inside sunken one-level step face, the step face with the connecting piece lower cover is connected.

Furthermore, the periphery of the main body structure is an annular surface of a circular truncated cone.

Furthermore, the sealing structure comprises an elastic sealing gasket and a needling structure, both of which are rotating bodies and are coaxially arranged with the connecting part;

the needle structure is provided with a puncture needle with an internal through channel, the elastic sealing gasket moves towards the puncture needle under the extrusion of the syringe, the puncture needle penetrates through the elastic sealing gasket to communicate the cavity and the syringe, and the syringe drives the elastic sealing gasket to be away from the puncture needle when removed;

and a liquid collecting cavity is arranged between the elastic sealing gasket and the needling structure.

Further, the elastic sealing gasket comprises a bowl-shaped main body with a groove and a protrusion arranged at the bottom of the groove of the bowl-shaped main body, the protrusion and the bowl-shaped main body are coaxially arranged, and the protrusion is inserted into the end part of the syringe in the process of connecting the protrusion and the syringe.

Further, the protrusion extends gradually in a converging manner from a connection with the bowl-shaped body.

Further, the side wall of the bowl-shaped main body is of a curved surface structure.

Further, the needling structure comprises a mounting plate and a fixing structure protruding out of the surface of the mounting plate;

the puncture needle is arranged on the mounting plate, and the fixing structure extrudes and fixes the convex edge arranged on the edge of the elastic sealing gasket.

Furthermore, the fixed knot constructs for the tubbiness structure, and with the laminating of connecting piece lower cover inner wall.

Further, the needle-shaped body is sleeved with a safety sheath, and the end part of the safety sheath is abutted to the mounting part.

Through the technical scheme, the invention has the beneficial effects that:

the safe liquid medicine transfer device can enable clinical dispensing personnel to simply and safely carry out dispensing and dosing work, the air exhaust design including the air exhaust cavity and the air-permeable water-blocking film body can skillfully balance the air pressure inside and outside the container, and meanwhile, the sealed design is realized by matching with the sealing structure, so that the liquid medicine can be effectively prevented from being sprayed outside, the waste of medicine is avoided, and the safety of the dispensing personnel is also 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 is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a safety liquid medicine transfer device according to the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a cross-sectional view of a safety-type medical fluid transfer device;

FIG. 4 is an enlarged view of a portion of FIG. 3 at B;

FIG. 5 is an enlarged view of a portion of FIG. 3 at C;

FIG. 6 is a schematic view of the connection of the body and the needle;

FIG. 7 is an enlarged view of a portion of FIG. 3 at D;

FIG. 8 is a schematic view of the connection of the body and the needle;

FIG. 9 is a schematic view of the connector lower cover at a first angle;

FIG. 10 is a schematic view of the connector lower cover of FIG. 9 at a second angle;

FIG. 11 is a schematic structural view of a sealing structure at a first angle;

FIG. 12 is a schematic structural view of the seal of FIG. 11 at a second angle;

FIG. 13 is a cross-sectional view of the seal structure;

FIG. 14 is a cross-sectional view of the seal configuration after optimization;

reference numerals: the air-permeable water-blocking membrane type gas-liquid separator comprises a body 1, an air exhaust cavity 11, an air-permeable water-blocking membrane body 12, a connecting piece lower cover 2, a connecting part 21, a needle-shaped body 3, a gas channel 31, a liquid channel 32, a cavity 4, a sealing structure 5, an elastic sealing gasket 51, a bowl-shaped main body 51a, a protrusion 51b, a convex edge 51c, a puncture needle 52, a liquid collection cavity 53, a mounting plate 54, a fixing structure 55 and a safety sheath 6.

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.

In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

This embodiment is written in a progressive manner.

As shown in fig. 1 to 6, a safety type medical solution transfer device includes: the connecting piece comprises a body 1 and a connecting piece lower cover 2, wherein a needle-shaped body 3 is arranged on the body 1, and an air channel 31 and a liquid channel 32 are respectively arranged in the needle-shaped body 3; an exhaust cavity 11 communicated with the gas channel 31 is arranged in the body 1, and the exhaust cavity 11 is communicated with the atmosphere through a breathable water-blocking film body 12; a cavity 4 is arranged between the body 1 and the connecting piece lower cover 2, the cavity 4 is communicated with the liquid channel 32, the connecting piece lower cover 2 is provided with a connecting part 21 connected with the injector, a sealing structure 5 is arranged at the connecting part 21, and the sealing structure 5 deforms under the extrusion of the injector to be communicated with the injector and the cavity 4.

As shown in fig. 1 to 6, when the syringe is connected to the connecting portion 21, the sealing structure 5 is automatically compressed to form a liquid transfer passage communicating the liquid passage 32 and the cavity 4, through which the liquid medicine can flow in or out, wherein the air exhaust cavity 11 of the transfer device body 1 and the air passage 31 of the needle 3 can balance the air pressure inside and outside the liquid medicine transfer device, and the air-permeable water-blocking film body 12 blocks external contaminants from entering the liquid medicine container. The safe liquid medicine transfer device can enable clinical dispensing personnel to simply and safely dispense and add medicine, the exhaust design including the exhaust cavity 11 and the breathable water-blocking film body 12 can ingeniously balance the air pressure inside and outside the container, and meanwhile, the sealed design is realized by matching with the sealing structure, so that the liquid medicine can be effectively prevented from being sprayed outside, and the like, the medicine waste is avoided, and the safety of the dispensing personnel is also protected.

Preferably, the body 1 includes a mounting portion 13 connected to the needle-shaped body 3, and a main structure 14 for implementing the mounting portion 13, an end of the main structure 14 is provided with a stepped surface 15 recessed inwards, the stepped surface 15 is connected to the lower cover 2 of the connecting piece, and the body 1 and the lower cover 2 of the connecting piece can be connected together by means of bonding or screw joint. The mode that body 1 and connecting piece lower cover 2 are connected is provided among the preferred scheme, because need set up seal structure 5 between the two, consequently the installation that seal structure 5 can be guaranteed to this kind of components of a whole that can function independently mode of setting is more convenient, and step face 15 makes the location between the two more accurate to can ensure seal structure 5's sealed and the realization that the action of sealed removing can be more accurate.

Wherein, the peripheral cyclic annular face that is the round platform of major structure 14 to provide the application of force part of establishing being connected translator and syringe, the operator only needs to hold the cyclic annular face here with thumb and forefinger, can exert force with the help of the slope of cyclic annular face, thereby quick realization installation.

As shown in fig. 7 to 10, the sealing structure 5 of the above embodiment preferably includes an elastic sealing gasket 51 and a needle structure, both of which are rotating bodies and are disposed coaxially with the connecting portion 21; the needle structure is provided with a puncture needle 52 with an internal through channel, the elastic sealing gasket 51 moves towards the puncture needle 52 under the extrusion of the syringe, the puncture needle 52 communicates the cavity 4 and the syringe through the elastic sealing gasket 51, and the syringe drives the elastic sealing gasket 51 away from the puncture needle 52 when being removed; a liquid collecting cavity 53 is arranged between the elastic sealing gasket 51 and the needling structure. In the using process of the sealing structure 5, the elastic sealing gasket 51 does not play a role of sealing obstruction when being penetrated by the puncture needle 52, the syringe realizes the transfer of the liquid medicine through the inner through channel of the puncture needle 52, the cavity 4 and the liquid channel 32, when the extrusion of the syringe is released, the elastic sealing gasket 51 is reset, the part penetrated by the puncture needle 52 can automatically realize the sealing and reestablish the sealing due to the elastic characteristic, in the resetting process, the preferred scheme has the functions of collecting the liquid medicine and sealing the liquid medicine in the liquid collecting cavity 53, in particular, after the liquid medicine transfer is finished, a small amount of liquid medicine is inevitably remained in the cavity 4 and the liquid channel 32, and due to the arrangement of the air exhaust cavity 11 and the air-permeable water-blocking film body 12, the partial liquid medicine can flow out in the subsequent processing process of the liquid medicine transfer device, thereby bringing the safety threat to related people, however, in the present invention, when the needle 52 contacts the elastic sealing gasket 51, the liquid collecting cavity 53 is sealed, and during the process that the elastic sealing gasket 51 is pressed by the syringe, the pressure in the liquid collecting cavity 53 is increased, and such pressure increase will form negative pressure after the syringe is removed to suck a small amount of liquid medicine remaining in the cavity 4 and the liquid channel 32 through the inner through channel of the needle 52, and seal the sucked liquid medicine in the liquid collecting cavity 53 to avoid leakage.

In the actual use process, because the residual liquid medicine amount is small, the end part of the puncture needle 52 can be quickly sealed after being quickly sucked into the liquid collecting cavity 53. Preferably, the flow area of the through-channel of the spike 52 is equal to the flow area of the fluid channel 32, or the flow area of the through-channel of the spike 52 is greater than the flow area of the fluid channel 32.

In the process of connecting the syringe and the medical fluid transfer device, the elastic sealing gasket 51 is attached to the end of the syringe to achieve sealing, and in order to further improve the sealing effect, as shown in fig. 11 to 13, the elastic sealing gasket 51 includes a bowl-shaped main body 51a having a groove, and a protrusion 51b provided at the bottom of the groove of the bowl-shaped main body 51a, the protrusion 51b is coaxially provided with the bowl-shaped main body 51a, and the protrusion 51b is inserted into the end of the syringe in the process of connecting the syringe with the syringe. In the process of connecting the syringe and the liquid medicine transfer device, the bulge 51b is inserted into the hole at the end part of the syringe to realize sealing, and the liquid medicine can be transferred more effectively after the bulge and the hole are connected in a sealing way.

As shown in fig. 14, as a preferred embodiment, the protrusion 51b gradually shrinks from the connection with the bowl-shaped body 51a, so that the syringe can be guided, the syringe can be better abutted against the protrusion 51b, the syringe is embedded in the groove body of the bowl-shaped body 51a, and the force can be more conveniently applied, so that the elastic sealing gasket 51 is quickly punctured by the puncture needle 52 to realize the circulation of the liquid medicine.

Through the arrangement of the projection 51b, another function is provided, namely, during the process of separating the syringe from the elastic sealing gasket 51, the projection 51b can be effectively removed from the puncture needle 52 through the friction force between the elastic sealing gasket 51 and the syringe, so as to avoid the occurrence of liquid leakage.

Preferably, the side wall of the bowl-shaped body 51a is of a curved structure, and the curved structure allows the protrusion 51b to obtain a larger moving space during the process of pressing the elastic sealing gasket 51, so as to ensure that the puncture needle 52 can effectively puncture the protrusion 51b, and the curved structure has a larger elasticity, so that the protrusion 51b can be better attached to the syringe and can be removed from the puncture needle 52 during the process of removing the syringe from the medical fluid transfer device.

The needling structure includes a mounting plate 54 and a fixing structure 55 protruding from the surface of the mounting plate 54; the puncture needle 52 is mounted on the mounting plate 54, and the fixing structure 55 presses and fixes the convex edge 51c provided on the edge of the elastic sealing gasket 5. Through the arrangement of the mounting plate 54 and the fixing structure 55 and the extrusion fixing of the fixing structure 55 to the convex edge 51c, the mounting plate 54, the fixing structure 55 and the elastic sealing gasket 51 can form a stable structure, and the relatively integral structure is more convenient in the mounting process. When the end of the body structure 14 is provided with an inwardly recessed step face, the securement may be achieved by the pressing of the step face against the mounting plate 54.

Preferably, the fixing structure 55 is a barrel-shaped structure and is attached to the inner wall of the lower cover 2 of the connector, so as to squeeze and position the whole range of the convex edge 51c and prevent the liquid in the liquid collecting cavity 53 from leaking.

As shown in figure 3, the needle-shaped body 3 is sleeved with the safety sheath 6, the end part of the safety sheath 6 is abutted against the mounting part 13, the safety sheath is made of rubber or silica gel materials, and the safety sheath 6 can avoid the needle stick injury of medical personnel before and after use.

It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A safety type liquid medicine transfer device is characterized by comprising: the connecting piece comprises a body (1) and a connecting piece lower cover (2), wherein a needle-shaped body (3) is arranged on the body (1), and a gas channel (31) and a liquid channel (32) are respectively arranged in the needle-shaped body (3); an exhaust cavity (11) communicated with the gas channel (31) is formed in the body (1), and the exhaust cavity (11) is communicated with the atmosphere through a breathable water-blocking film body (12); a cavity (4) is arranged between the body (1) and the connecting piece lower cover (2), the cavity (4) is communicated with the liquid channel (32), the connecting piece lower cover (2) is provided with a connecting part (21) connected with an injector, a sealing structure (5) is arranged at the connecting part (21), and the sealing structure (5) deforms under the extrusion of the injector to communicate the injector with the cavity (4);

the sealing structure (5) comprises an elastic sealing gasket (51) and a needling structure, both of which are rotating bodies and are coaxially arranged with the connecting part (21); the needle structure is provided with a puncture needle (52) with an internal through channel, the elastic sealing gasket (51) moves towards the puncture needle (52) under the extrusion of the syringe, the puncture needle (52) penetrates through the elastic sealing gasket (51) to communicate the cavity (4) and the syringe, and the syringe drives the elastic sealing gasket (51) to be away from the puncture needle (52) when being removed; a liquid collecting cavity (53) is arranged between the elastic sealing gasket (51) and the needling structure;

when the puncture needle (52) is contacted with the elastic sealing gasket (51), the liquid collecting cavity (53) is sealed, and the pressure in the liquid collecting cavity (53) is increased in the process that the elastic sealing gasket (51) is squeezed by a syringe, so that negative pressure is formed after the syringe is removed, liquid medicine remained in the cavity (4) and the liquid channel (32) is sucked through the internal through channel of the puncture needle (52), and the sucked liquid medicine is sealed in the liquid collecting cavity (53).

2. The safety type liquid medicine transfer device according to claim 1, wherein the body (1) comprises a mounting portion (13) connected with the needle-shaped body (3) and a main structure (14) for realizing the mounting portion (13), an end of the main structure (14) is provided with a primary step surface (15) which is concave inwards, and the step surface (15) is connected with the lower cover (2) of the connecting piece.

3. The safety medical liquid transfer device according to claim 2, wherein the periphery of the main body structure (14) is a circular truncated annular surface.

4. The safety medical fluid transfer device according to claim 1, wherein the elastic sealing gasket (51) comprises a bowl-shaped body (51 a) with a groove, and a protrusion (51 b) arranged at the bottom of the groove of the bowl-shaped body (51 a), the protrusion (51 b) is arranged coaxially with the bowl-shaped body (51 a), and the protrusion (51 b) is inserted into the end of the syringe during the connection with the syringe.

5. The safety medical fluid transfer device according to claim 4, wherein the protrusion (51 b) extends gradually converging from the junction with the bowl-shaped body (51 a).

6. The safety medical fluid transfer device according to claim 4, wherein the side wall of the bowl-shaped body (51 a) is of a curved structure.

7. The safety medical fluid transfer device according to claim 1, wherein the needle structure comprises a mounting plate (54) and a fixing structure (55) protruding from a surface of the mounting plate (54);

the puncture needle (52) is arranged on the mounting plate (54), and the fixing structure (55) extrudes and fixes a convex edge (51 c) arranged on the edge of the elastic sealing gasket (51).

8. The safety type medical liquid transfer device according to claim 7, wherein the fixing structure (55) is a barrel-shaped structure and is attached to the inner wall of the lower cover (2) of the connector.

9. The safety liquid medicine transfer device according to claim 2, wherein the needle-shaped body (3) is sheathed with a safety sheath (6), and the end of the safety sheath (6) is abutted with the mounting part (13).