CN213911387U

CN213911387U - Dispensing device

Info

Publication number: CN213911387U
Application number: CN202022638279.XU
Authority: CN
Inventors: 曹明; 闫跃华; 郭文远; 陈琳; 邓杰; 于洋
Original assignee: Henan Shuguang Huizhikang Biotechnology Co ltd
Current assignee: Henan Shuguang Huizhikang Biotechnology Co ltd
Priority date: 2020-11-13
Filing date: 2020-11-13
Publication date: 2021-08-10
Anticipated expiration: 2030-11-13

Abstract

The utility model provides a pair of dispensing device, include: a puncture needle having a through hole penetrating an axial direction thereof; one end of the filter is communicated with the puncture needle, and the other end of the filter is provided with a liquid inlet which is suitable for being matched with the injector; the first protective sleeve is detachably sleeved on the puncture needle, and the second protective sleeve is detachably plugged at the liquid inlet; the outer wall of the puncture needle close to the tip end is provided with an annular blocking surface which is suitable for being abutted against the outer end surface of the bottle stopper. The filter of the utility model can effectively filter particles in the Chinese patent medicine and cut off the ampoule bottle to generate glass broken slag; the puncture needle pierces the bottle plug and injects the liquid medicine into the medicine bottle, dispenses, and the annular stop face is spacing with the outer terminal surface butt of bottle plug this moment, avoids the puncture needle to stretch into the overlength and leads to annotating, get the liquid resistance great.

Description

Dispensing device

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to dispensing device.

Background

The dispensing device is one of the products with the largest clinical use amount, and is matched with a syringe for dispensing liquid. The ampoule bottle is generally used for containing liquid medicines, and the medicine bottle with the bottle stopper is generally used for containing powder medicines; in the process of dispensing, liquid medicine and powdered medicine need to be mixed, after a puncture needle of the dispensing device firstly sucks the liquid medicine in an ampoule bottle, the puncture needle penetrates through a bottle stopper again to inject the liquid medicine into a medicine bottle with the bottle stopper and mix the liquid medicine with the powdered medicine, and the mixed liquid medicine is sucked out through the puncture needle again.

In the dispensing process, the length of the puncture needle penetrating through the bottle stopper and extending into the medicine bottle is difficult to control, and the extending part is too long or too short, so that the medicine liquid is difficult to inject and take.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the length that the pjncture needle of the dispensing device among the prior art pierces the bottle plug and stretches into in the medicine bottle and is difficult to control, appears injecting easily and gets the hard defect of liquid medicine to a dispensing device is provided.

In order to solve the technical problem, the utility model provides a dispensing device, include:

a puncture needle having a through hole penetrating an axial direction thereof;

one end of the filter is communicated with the puncture needle, and the other end of the filter is provided with a liquid inlet which is suitable for being matched with an injector;

the protective sleeve is provided with a first protective sleeve and a second protective sleeve, the first protective sleeve is detachably sleeved on the puncture needle, and the second protective sleeve is detachably plugged at the liquid inlet;

an annular blocking surface is arranged on the outer wall of the puncture needle close to the tip end of the puncture needle, and the annular blocking surface is suitable for being abutted against the outer end face of the bottle stopper.

Preferably, the puncture needle is of a stepped structure and is provided with a first needle section, a second needle section and a third needle section which are sequentially arranged towards the tip end of the puncture needle, the outer diameter of the second needle section is larger than that of the third needle section and smaller than that of the first needle section, and the annular blocking surface is formed at the joint of the second needle section and the third needle section.

Preferably, the outer wall of the first needle section of the puncture needle is of a conical structure, the outer diameter of the first needle section gradually decreases towards the tip direction of the puncture needle, and an inner conical surface which is sleeved and tightly attached to the first needle section is arranged inside the first protective sleeve.

Preferably, the filter includes:

the first cover body is internally provided with a first accommodating cavity, the first accommodating cavity is provided with a first opening end and a second opening end which are communicated with each other, and the first opening end is integrally formed on the puncture needle;

the filter membrane is positioned in the first accommodating cavity and is connected between the first opening end and the second opening end in a covering mode;

the second cover body is internally provided with a second accommodating cavity, the second accommodating cavity is provided with a third opening end and a liquid inlet which are communicated with each other, and the second cover body is connected with the second opening end cover of the first cover body through the third opening end.

Preferably, the filter membrane has a plurality of filter pores, and the pore diameter of the filter pores is 0.5 to 20 μm.

As a preferable scheme, a connecting column is arranged on one side of the second cover body, which is far away from the third opening end, and the liquid inlet penetrates through the axial direction of the connecting column and is communicated with the second accommodating cavity.

Preferably, the second protective sleeve is provided with an accommodating groove with an opening at one end, a plug extending outwards is vertically arranged at the center of the accommodating groove, and the outer diameter of the plug is equal to the inner diameter of the liquid inlet.

Preferably, one end of the puncture needle, which is far away from the filter, is provided with a first inclined plane, and the through hole penetrates through the first inclined plane; the two sides of the first inclined plane are respectively provided with a second inclined plane, and the two second inclined planes and the first inclined plane are converged into a point at the tip end.

Preferably, the included angle between the second chamfer surface and the first chamfer surface is 15 degrees +/-10 degrees.

Preferably, the puncture needle is made of hard plastic.

The utility model discloses technical scheme has following advantage:

1. the utility model provides a medicine dispensing device, the liquid inlet of which is connected with an injector, and a puncture needle extends into an ampoule bottle and a medicine bottle with a bottle plug to dispense liquid; the filter can effectively filter particles in the Chinese patent medicine and cut the ampoule bottle to generate glass broken slag; the pjncture needle pierces through the bottle plug and pours into the liquid medicine into to the medicine bottle, dispenses, and the annular stops that the face is spacing with the outer terminal surface butt of bottle plug this moment, and the medical personnel of being convenient for control pjncture needle gets into the length in the medicine bottle, avoids the pjncture needle to stretch into the overlength and leads to annotating to get, the liquid resistance is great.

2. The utility model provides a dispensing device, first needle section cup joint, paste tight cooperation with a protective sheath conical surface, and the accident of first protective sheath drops when avoiding not using, and convenient operation is connected to the plug.

3. The utility model provides a dispensing device, the first lid and the pjncture needle integrated into one piece of filter avoid taking place the liquid medicine between filter and the pjncture needle and reveal.

4. The utility model provides a dispensing device, the setting of second scarf has reduced the resistance that the pjncture needle stretched into the bottle plug.

5. The utility model provides a dispensing device, dispensing device belong to the consumer, and the pjncture needle adopts the rigid plastic material, but regeneration.

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 embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a front sectional view of the dispensing device provided in the present invention.

Fig. 2 is a schematic perspective view of the puncture needle.

Fig. 3 is a schematic perspective view of the puncture needle at the tip.

Fig. 4 is a perspective view of a second cover of the filter.

Description of reference numerals:

1. puncturing needle; 2. a first needle section; 3. a second needle section; 4. a third needle section; 5. an annular blocking surface; 6. a first chamfer; 7. a second chamfer; 8. a first cover body; 9. a second cover body; 10. a filter membrane; 11. connecting columns; 12. a liquid inlet; 13. a first protective sheath; 14. a second protective cover; 15. a plug; 16. a flange; 17. and a through hole.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships 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 is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

The dispensing device that this embodiment provided includes: puncture needle 1, filter and protective sheath.

As shown in fig. 1 and 2, the puncture needle 1 is made of a rigid plastic material, the rigid plastic material may be ABS (acrylonitrile, butadiene, and styrene terpolymer), PC (polycarbonate), or rigid PVC (polyvinyl chloride), and a through hole 17 is formed in the puncture needle 1 and penetrates through the interior thereof in the axial direction. The puncture needle 1 is of a step-shaped structure and is provided with a first needle section 2, a second needle section 3 and a third needle section 4 which are sequentially arranged towards the tip end, and the outer diameter of the second needle section 3 is larger than that of the third needle section 4 and smaller than that of the first needle section 2; and an annular blocking surface 5 is formed at the joint of the second needle section 3 and the third needle section 4, and in the liquid distribution process, the annular blocking surface 5 can block and abut against the outer end surface of the bottle stopper. The outer wall of the third needle segment 4 is in a tapered structure, and the outer diameter of the third needle segment 4 gradually decreases towards the tip direction of the puncture needle 1.

As shown in fig. 3, the puncture needle 1 has a first chamfer 6 at the end away from the filter, and the through hole 17 penetrates through the first chamfer 6; two sides of the first inclined plane 6 are respectively provided with a second inclined plane 7, and the two second inclined planes 7 and the first inclined plane 6 meet at a point at the tip end; the included angle between the second chamfer plane 7 and the first chamfer plane 6 is 15 degrees +/-10 degrees.

As shown in fig. 1 and 4, the filter includes: a first cover body 8, a second cover body 9 and a filter membrane 10; the first cover body 8 is internally provided with a first through accommodating cavity, the first accommodating cavity is provided with a first opening end and a second opening end which are oppositely arranged, and the first cover body 8 is integrally formed on the puncture needle 1 through the first opening end. A through second accommodating cavity is formed in the second cover body 9, and the second accommodating cavity is provided with a third opening end and a connecting column 11 which are oppositely arranged; the connecting column 11 extends perpendicularly outwards and deviates from the second cover body 9, a liquid inlet 12 penetrating through the connecting column 11 in the axial direction is formed in the connecting column 11, and the liquid inlet 12 is communicated with the second accommodating cavity; the third opening end of the second cover body 9 is embedded into the second opening end of the first cover body 8, so that the second cover body 9 and the first cover body 8 are connected and fixed; the outer wall of the end of the connecting column 11, which is far away from the second cover body 9, is provided with a protruding circumferential flange 16, the flanges 16 are provided with two groups which are radially symmetrical, and the flange 16 is provided with a double-head external thread. The filter membrane 10 is located in the first accommodating cavity of the first cover body 8, and is covered and connected between the first opening end and the second opening end, and the liquid medicine enters the injector from the liquid inlet 12 after penetrating through the filter membrane 10; the filtering membrane 10 is provided with a plurality of filtering holes, and the aperture of each filtering hole is 0.5-20 μm; the filter membrane 10 is generally made of a nuclear pore membrane, polyethersulfone or nylon material.

As shown in fig. 1 and 4, the protective sheath includes: a first protective sheath 13 and a second protective sheath 14; the first protective sleeve 13 is provided with a cavity with an opening at one end, and the inner wall of the cavity close to the opening end is an inner conical surface matched with the outer wall of the third needle section 4; the first protective sleeve 13 is sleeved on the puncture needle 1 and is in close fit with the outer wall of the third needle section 4. The second protective sleeve 14 is provided with a containing groove with an opening at one end, an inner thread is arranged on the inner side wall of the containing groove, a plug 15 which extends vertically outwards is arranged at the center of the containing groove, and the outer diameter of the plug 15 is equal to the inner diameter of the liquid inlet 12; the end cap 15 is stuffed in behind the inlet 12, the external screw thread of holding tank inner wall with the double-end external screw thread of spliced pole 11 carries out threaded connection, realizes dual protection, the pollution of avoiding of inlet 12 to can prevent that the accident before using from droing.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. A dispensing device, comprising:

a puncture needle (1) having a through hole (17) penetrating in the axial direction thereof;

one end of the filter is communicated with the puncture needle (1), and the other end of the filter is provided with a liquid inlet (12) which is suitable for being matched with an injector;

the protective sleeve is provided with a first protective sleeve (13) and a second protective sleeve (14), the first protective sleeve (13) is detachably sleeved on the puncture needle (1), and the second protective sleeve (14) is detachably plugged at the liquid inlet (12);

an annular blocking surface (5) is arranged on the outer wall of the puncture needle (1) close to the tip end of the puncture needle, and the annular blocking surface (5) is suitable for being abutted against the outer end face of the bottle stopper.

2. The dispensing device according to claim 1, wherein the puncture needle (1) is of a step-like structure and has a first needle section (2), a second needle section (3) and a third needle section (4) which are arranged in sequence towards the tip end of the puncture needle, the outer diameter of the second needle section (3) is larger than that of the third needle section (4) and smaller than that of the first needle section (2), and the annular blocking surface (5) is formed at the joint of the second needle section (3) and the third needle section (4).

3. The dispensing device according to claim 2, characterized in that the outer wall of the first needle section (2) of the puncture needle (1) is a conical structure, the outer diameter of the first needle section (2) gradually decreases towards the tip direction of the puncture needle (1), and the inside of the first protective sleeve (13) is provided with an inner conical surface which is sleeved and tightly attached with the first needle section (2).

4. A dispensing device as recited in claim 1, wherein said filter comprises:

the first cover body (8) is internally provided with a first accommodating cavity, the first accommodating cavity is provided with a first opening end and a second opening end which are communicated with each other, and the first opening end is integrally formed on the puncture needle (1);

the filter membrane (10) is positioned in the first accommodating cavity and is connected between the first open end and the second open end in a covering mode;

the second cover body (9) is internally provided with a second accommodating cavity, the second accommodating cavity is provided with a third opening end and a liquid inlet (12) which are communicated with each other, and the second cover body (9) is connected with the second opening end cover of the first cover body (8) through the third opening end.

5. A dispensing device according to claim 4, characterized in that said filter membrane (10) has a plurality of filter holes, the diameter of said filter holes being between 0.5 μm and 20 μm.

6. A dispensing device according to claim 4, characterized in that the second cover body (9) has a connecting column (11) on the side facing away from the third open end, and the liquid inlet (12) extends through the connecting column (11) in the axial direction and communicates with the second receiving cavity.

7. Dispensing device according to claim 6, characterized in that the second protective sleeve (14) has a receiving groove open at one end, which receiving groove has a vertically outwardly extending stopper (15) in the centre, the outer diameter of the stopper (15) being equal to the inner diameter of the liquid inlet (12).

8. A dispensing device according to any of the claims 1-7, characterized in that the piercing needle (1) has a first chamfer (6) at its end remote from the filter, the through hole (17) extending through the first chamfer (6); the two sides of the first inclined plane (6) are respectively provided with a second inclined plane (7), and the second inclined plane (7) and the first inclined plane (6) are converged into a point at the tip end.

9. Dispensing device according to claim 8, characterized in that the second chamfer (7) forms an angle of 15 ° ± 10 ° with the first chamfer (6).

10. A dispensing device according to any of the claims 1-7 or 9, characterized in that the piercing needle (1) is made of a rigid plastic material.