阅读说明：本技术 一种大容量药物储存混合多腔输液袋 (Large capacity drug storage mixes multicavity infusion bag ) 是由 张国荣 张晁玮 魏玉辉 秦红岩 周燕 张建萍 王晓华 武新安 何忠芳 于 2019-10-21 设计创作，主要内容包括：本发明公开一种大容量药物储存混合多腔输液袋。本结构包括输液袋和液路装置,所述液路装置包括加药管和输液管；所述输液袋与输液管之间设置有针筒状混药结构；所述针筒状混药结构由针筒状外管及与其紧密配合的两端未封闭的活塞式内管组成。本发明袋体各腔室之间设有虚焊分隔,采用严实、密封的分隔,不会产生因虚焊不严导致的容易开裂,或者虚焊太牢固导致的挤压时不易开裂问题；且加药口采用螺母式连接附属加药管,能够依据药液的不同性质,灵活方便地大剂量灌装注入相应腔室,供临用前混合使用,还能够提前预灌入基础需求的药液,临用前根据病情个体化补充加入,节约配制时间,提高工作效率。(The invention discloses a large-capacity medicine storage and mixing multi-cavity infusion bag. The structure comprises an infusion bag and a liquid path device, wherein the liquid path device comprises a dosing pipe and an infusion pipe; a syringe-shaped medicine mixing structure is arranged between the infusion bag and the infusion tube; the needle-shaped medicine mixing structure consists of a needle cylinder-shaped outer tube and a piston-type inner tube which is tightly matched with the needle cylinder-shaped outer tube and has two unsealed ends. Due to the fact that the cold solder joints are arranged among the cavities of the bag body, tight and sealed separation is adopted, the problem that the bag body is easy to crack due to poor cold solder joints or is difficult to crack during extrusion due to too firm cold solder joints is solved; and the medicine feeding port is connected with the auxiliary medicine feeding pipe in a nut type, so that large-dose filling can be flexibly and conveniently carried out into corresponding cavities according to different properties of liquid medicines, the liquid medicines can be mixed and used before use, the liquid medicines with basic requirements can be pre-filled in advance, the liquid medicines can be added according to individual patient conditions before use, the preparation time is saved, and the working efficiency is improved.)

1. The utility model provides a mixed multicavity infusion bag is stored to large capacity medicine, includes infusion bag (1) and liquid way device, its characterized in that: the liquid path device comprises a medicine feeding pipe (29-1) and a transfusion pipe (29); a needle-shaped medicine mixing structure is arranged between the infusion bag (1) and the infusion tube (29); the syringe-shaped medicine mixing structure consists of a syringe-shaped outer tube (12) and a piston-type inner tube (18) which is tightly matched with the syringe-shaped outer tube and has two unsealed ends;

the infusion bag (1) is divided into an I chamber (2), a II chamber (3) and a III chamber (6) by two welding lines (5);

the wall of the needle cylinder-shaped outer tube (12) is provided with a right opening (7) and a left opening (13) which are symmetrical at two sides, the left opening (13) is communicated with the first chamber (2), the right opening (7) is communicated with the third chamber (6), and the needle cylinder-shaped outer tube (12) with a closed top end can be communicated with the second chamber (3); an inner pipe opening (8) is formed in the side wall of the piston type inner pipe (18);

needle-shaped outer tube opening pieces are arranged at the top end of the needle-shaped outer tube (12) and the top of the piston-type inner tube (18).

2. A large volume medication storage mixing multi-chamber infusion bag according to claim 1, wherein: the needle cylinder-shaped outer tube opening part comprises a needle cylinder-shaped outer tube (12), wherein the lower surface of the top end of the needle cylinder-shaped outer tube is provided with an annular virtual tangent (19) which is virtually cut in a circular ring shape, and the annular virtual tangent (19) is provided with a pull ring (20) which is fixed on the lower surface of the annular virtual tangent (19); the annular top end of the piston type inner tube (18) is provided with a protruding drag hook (21), and the protruding drag hook (21) and the pull ring (20) can be mutually matched and nested.

3. A large volume medication storage mixing multi-chamber infusion bag according to claim 1, wherein: the needle cylinder-shaped outer tube opening part comprises a circular virtual tangent line (19) which is arranged on the lower surface of the top end of the needle cylinder-shaped outer tube (12) in a virtual cutting mode, an arc-shaped convex thorn (21-1) is arranged on the circular top end of the piston type inner tube (18) in an extending mode, and the arc-shaped convex thorn (21-1) corresponds to the circular virtual tangent line (19).

4. A large volume medication storage mixing multi-chamber infusion bag according to claim 1, wherein: an inner tube horn-shaped handle (10) is arranged at the bottom of the piston type inner tube (18), an inner tube spiral screw thread (9) is arranged at the bottom of the inner tube horn-shaped handle (10), an outer tube horn-shaped handle (11) is arranged on the outer wall of the tail end of the needle tube-shaped outer tube (12), a first annular guide rail (14) and a second annular guide rail (15) which are sunken are arranged on the inner wall of the tail end of the needle tube-shaped outer tube (12), and a linear guide rail (16) communicated with the first annular guide rail (14) and the second annular guide rail (15) are arranged on the;

and the outer wall of the lower part of the piston type inner pipe (18) is provided with a convex guide point (17), and the guide point (17) can smoothly slide along the linear guide rail (16), the first annular guide rail (14) and the second annular guide rail (15).

5. A large volume medication storage mixing multi-chamber infusion bag according to claim 1, wherein: the needle-shaped medicine mixing structure is matched with a locking structure, and the locking structure comprises a clamping piece and a screw rod (25) matched with the clamping piece; the clamping piece comprises an annular sleeve clamp (22) connected with the screw rod (25) through an upper nut (24) and a nut-shaped sleeve (28) connected with the screw rod (25) through a lower nut (26).

6. A large-volume medication-storing mixing multi-chamber infusion bag according to claim 5, wherein: the annular sleeve clamp (22) can be clamped with the needle cylinder-shaped outer tube (12), and the spiral thread (9) of the inner tube is matched and screwed with the nut-shaped sleeve (28).

7. A large volume medication storage mixing multi-chamber infusion bag according to claim 1, wherein: a spiral thread (27) is arranged on the lower side of the nut-shaped sleeve (28), and the spiral thread (27) is externally connected with an infusion tube (29) or an auxiliary medicine adding connecting tube interface (30); the auxiliary dosing connecting pipe interface (30) is provided with 3 clip-shaped switches (34); the 3 clip-shaped switches (34) are respectively connected with the first dosing tube (31), the second dosing tube (32) and the third dosing tube (33).

8. A large-volume medication-storing mixing multi-chamber infusion bag according to claim 5, wherein: and a rotating handle (23) is arranged at the top of the screw rod (25).

9. A large volume medication storage mixing multi-chamber infusion bag according to claim 1, wherein: the center of the top of the bag body (1) is provided with a hook hole (4).

10. A large volume medication storage mixing multi-chamber infusion bag according to claim 1, wherein: a sealing ring is arranged between the needle cylinder-shaped outer tube (12) and the piston type inner tube (18).

Technical Field

The invention relates to the technical field of medicine packaging, in particular to a mixing and blending device for multiple medicines with different properties before use, and specifically relates to a high-capacity medicine storage mixing multi-cavity infusion bag.

Background

At present, high-capacity infusion, particularly parenteral nutrition support treatment, is more and more paid more attention by clinical attention, and as parenteral nutrition prescriptions are usually composed of more than ten kinds of medicines, in order to prevent the compatibility change of the medicines of various components with different chemical properties after premixing and storing, the medicines are often temporarily arranged in a high-capacity disposable intravenous nutrition infusion bag according to the physicochemical properties of the medicines before use. There are also medicine enterprises for improving configuration work efficiency, according to the energy demand scheme of standard weight patient, adopt to adorn the medicine of different properties in advance respectively in rosin joint divided multicavity bag as the base solution, solve this kind of problem through extrusion temporary mixing during the use, but this method can not satisfy different diseases, the clinical patient individualized nutritional demand of different weights.

The invention patent of China with the publication number of CN 204864006U (application number of 201520613822.7) provides a folding liquid-liquid double-cavity bag, and the invention patent with the publication number of CN 103932887A (application number of 201410159714.7) also provides a large-capacity multi-cavity infusion bag with medicine feeding and medicine discharging ports at the bottom and mutually isolated by adopting cold-solder strips. However, the multi-cavity bag has high requirements on the cold joint technology, the cold joint is too firm, and the medicines in the adjacent cavities are difficult to be mixed by cracking the cold welding rod through extrusion when in use; the weak welding is too weak, and the welding rod is easy to crack due to extrusion in the transportation process, so that the medicines are mixed too early and are interacted with each other to deteriorate and lose efficacy. In addition, the multi-cavity bag is provided with a small medicine adding opening, so that a large amount of nutritional ingredients such as glucose, amino acid and the like which are supplemented according to personalized medicine requirements are difficult to supplement and add quickly, and leakage pollution is easily caused by multiple times of puncture through frequent medicine adding of a disposable syringe.

Disclosure of Invention

The invention aims to provide a large-capacity medicine storage and mixing multi-cavity infusion bag which is simple in structure, safe, reliable, convenient to transport and capable of flexibly and conveniently adding various required medicines according to individual requirements of patients during use.

In order to achieve the purpose, the high-capacity medicine storage mixing multi-cavity infusion bag comprises an infusion bag and a liquid path device, wherein the liquid path device comprises a medicine feeding pipe and an infusion pipe; a syringe-shaped medicine mixing structure is arranged between the infusion bag and the infusion tube; the needle-shaped medicine mixing structure consists of a needle cylinder-shaped outer tube and a piston-type inner tube which is tightly matched with the needle cylinder-shaped outer tube and has two unsealed ends;

the infusion bag is divided into a first chamber, a second chamber and a third chamber by two welding lines;

the needle cylinder-shaped outer tube is provided with a right opening and a left opening which are symmetrical at two sides, the left opening is communicated with the first chamber, the right opening is communicated with the third chamber, and the needle cylinder-shaped outer tube with the closed top end can be communicated with the second chamber; an inner pipe opening is formed in the side wall of the piston type inner pipe;

and needle-shaped outer tube opening pieces are arranged at the top end of the needle-shaped outer tube and the top of the piston type inner tube.

The needle cylinder-shaped outer tube opening part comprises a circular virtual tangent line with a circular virtual cut arranged on the lower surface of the top end of the needle cylinder-shaped outer tube, and a pull ring fixed on the lower surface of the circular virtual tangent line is arranged on the circular virtual tangent line; the annular top end of the piston type inner tube is provided with a protruding drag hook, and the protruding drag hook and the pull ring can be mutually matched and nested.

The needle cylinder-shaped outer tube opening part comprises an annular virtual tangent line, wherein the annular virtual tangent line is arranged on the lower surface of the top end of the needle cylinder-shaped outer tube, an arc-shaped convex thorn is arranged on the annular top end of the piston-type inner tube in an extending mode, and the arc-shaped convex thorn corresponds to the annular virtual tangent line.

The bottom of the piston type inner tube is provided with an inner tube horn-shaped handle, the bottom of the inner tube horn-shaped handle is provided with an inner tube spiral screw thread, the outer wall of the tail end of the needle tube-shaped outer tube is provided with an outer tube horn-shaped handle, and the inner wall of the tail end of the needle tube-shaped outer tube is provided with a first annular guide rail and a second annular guide rail which are sunken and a linear guide rail communicated with the first annular guide rail and the second annular guide rail;

and the outer wall of the lower part of the piston type inner pipe is provided with a convex guide point, and the guide point can smoothly slide along the linear guide rail, the first annular guide rail and the second annular guide rail.

The needle-shaped medicine mixing structure is matched with a locking structure, and the locking structure comprises a clamping piece and a screw rod matched with the clamping piece; the clamping piece comprises an annular sleeve clamp connected with the screw rod through an upper nut and a nut-shaped sleeve connected with the screw rod through a lower nut;

the annular sleeve clamp can be tightly clamped with the needle cylinder-shaped outer tube, and the spiral thread of the inner tube is matched and screwed with the nut-shaped sleeve.

The lower side of the nut-shaped sleeve is provided with a spiral screw thread which is externally connected with an infusion tube or an auxiliary dosing connecting tube interface; the interface of the auxiliary dosing connecting pipe is provided with 3 clip-shaped switches; the 3 clip-shaped switches are respectively connected with the first dosing tube, the second dosing tube and the third dosing tube.

The top of the screw rod is provided with a rotating handle.

The center of the top of the bag body is provided with a hook hole.

And a sealing ring is arranged between the needle cylinder-shaped outer tube and the piston-type inner tube.

The auxiliary dosing connecting pipe interface is provided with 3 buckling switches, which is convenient for flexibly controlling the opening and closing states of each pipeline.

The shape of the annular virtual tangent is an ellipse or a circular ring, and in order to avoid blocking the piston type inner tube, the area of the annular virtual tangent is absolutely smaller than the surface area of the end opening of the piston type inner tube.

The shape of the annular virtual tangent is circular, and the circle center of the circular ring should deviate from the circle center of the upper surface of the needle cylinder-shaped outer tube.

The invention discloses a large-capacity medicine storage mixing multi-cavity infusion bag, which has the beneficial effects that:

1. the chambers of the bag body are not separated by the cold solder joint, and the problems of easy cracking caused by the untight cold solder joint or difficult extrusion mixing caused by the too firm cold solder joint can be solved by adopting the tight and sealed separation;

2. the medicine feeding port is connected with the auxiliary medicine feeding pipe in a nut mode, large-dose filling and injecting into corresponding cavities can be flexibly and conveniently carried out according to different properties of liquid medicines for mixing use before use, liquid medicines with basic requirements can also be pre-filled in advance, the liquid medicines are added in a personalized and supplementary mode according to the state of an illness before use, the preparation time is saved, and the working efficiency is improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a view of the syringe-like mixing structure and locking device of the present invention;

FIG. 4 shows a syringe-like medicine mixing structure and a locking device according to the present invention;

FIG. 5 is an auxiliary medicated connection tube according to the present invention;

in the figure: 1-transfusion bag, 2-first chamber, 3-second chamber, 4-hook hole, 5-welding line, 6-third chamber, 7-right opening, 8-inner tube opening, 9-inner tube spiral thread, 10-inner tube horn handle, 11-outer tube horn handle, 12-syringe outer tube, 13-left opening, 14-first annular guide rail, 15-second annular guide rail, 16-linear guide rail, 17-guide point, 18-piston inner tube, 19-annular virtual tangent line, 20-pull ring, 21-convex drag hook, 21-1 arc convex thorn, 22-annular sleeve clamp, 23-rotary handle, 24-upper nut, 25-screw rod, 26-lower nut, 27-spiral thread, 28-nut-shaped sleeve, 29-infusion tube, 29-1-upper-end dosing port, 30-auxiliary dosing connecting tube port, 31-first dosing tube, 32-second dosing tube, 33-third dosing tube and 34-clip-shaped switch.

Detailed Description