阅读说明：本技术 一种具有复合型弱焊条的防漏液型聚丙烯输液袋 (Liquid leakage prevention type polypropylene infusion bag with composite weak welding rod ) 是由 喻强 朱仲强 刘文军 刘思川 谭鸿波 葛均友 罗雅兵 于 2020-07-27 设计创作，主要内容包括：本发明公开了一种具有复合型弱焊条的防漏液型聚丙烯输液袋,属于输液袋技术领域。包括袋体,袋体内设有容纳腔；弱焊条,设置在袋体上,将容纳腔分隔成若干个用于盛装液体或粉末的腔室,相邻的腔室之间通过两根弱焊条分隔；在两根弱焊条之间设有缓冲空腔,弱焊条包括一体成型的直线段和设置在直线段的两端的弯折段；弱焊点,弱焊点设置在缓冲空腔内的袋体上；口管,易折盖,易折盖一一对应的密封连接在口管上；口管和易折盖一体成型；尾灌部,尾灌部设置在袋体与口管相对的侧壁上,灌装前,尾灌部与腔室连通,罐装后,将尾灌部的袋体的两侧壁焊接密封。通过设置缓冲空腔以及弱焊点,可以进一步的降低输液袋在意外情况下被打开的几率。(The invention discloses a liquid leakage prevention type polypropylene infusion bag with a composite weak welding rod, and belongs to the technical field of infusion bags. Comprises a bag body, wherein an accommodating cavity is arranged in the bag body; the weak welding rods are arranged on the bag body, the containing cavity is divided into a plurality of cavities for containing liquid or powder, and the adjacent cavities are separated by two weak welding rods; a buffer cavity is arranged between the two weak welding rods, and each weak welding rod comprises a straight line section and bending sections, wherein the straight line sections are integrally formed, and the bending sections are arranged at the two ends of each straight line section; the weak welding points are arranged on the bag body in the buffer cavity; the mouth tube is provided with the easily-folded covers, and the easily-folded covers are in one-to-one correspondence and are hermetically connected to the mouth tube; the mouth tube and the easy-folding cover are integrally formed; the tail filling part is arranged on the side wall of the bag body opposite to the mouth pipe, the tail filling part is communicated with the cavity before filling, and after filling, the two side walls of the bag body of the tail filling part are welded and sealed. By arranging the buffer cavity and the weak welding points, the probability that the infusion bag is opened accidentally can be further reduced.)

1. The utility model provides a leak protection liquid type polypropylene infusion bag with compound weak welding rod which characterized in that: comprises that

The bag comprises a bag body (1), wherein an accommodating cavity is formed in the bag body (1);

the weak welding rods (3) are arranged on the bag body (1) and divide the containing cavity into a plurality of cavities (2) for containing liquid or powder, and the adjacent cavities (2) are separated by two weak welding rods (3); a buffer cavity (5) is arranged between the two weak welding rods (3); the weak welding rod (3) comprises a straight line section (14) and bending sections (13), wherein the straight line section (14) is integrally formed, and the bending sections (13) are arranged at two ends of the straight line section (14);

the weak welding points (4) are arranged on the bag body (1) in the buffer cavity (5);

the number of the mouth pipes (6) is in one-to-one correspondence with the number of the chambers (2), the mouth pipes (6) are arranged on the bag body (1), and the mouth pipes (6) are in one-to-one correspondence communication with the chambers (2);

the number of the easy-to-fold covers (7) is in one-to-one correspondence with the number of the mouth tubes (6), and the easy-to-fold covers (7) are in one-to-one correspondence and are hermetically connected to the mouth tubes (6); the mouth tube (6) and the easy-to-fold cover (7) are integrally formed;

the tail filling part (11) is arranged on the side wall, opposite to the mouth pipe (6), of the bag body (1), the tail filling part (11) is communicated with the cavity (2) before filling, and after filling, the two side walls of the bag body (1) of the tail filling part (11) are welded and sealed.

2. The leakage-proof polypropylene infusion bag with the composite weak welding rod as claimed in claim 1, wherein: weak welding point (4) are the easy isolation point that tears that forms through the welding between two lateral walls of the bag body (1), the welding power that easily tears between isolation point and the bag body (1) is less than the pulling force that receives when pulling open two lateral walls of the bag body (1) to opposite direction.

3. The leakage-proof polypropylene infusion bag with the composite weak welding rod as claimed in claim 2, wherein: the number of the weak welding spots (4) is multiple, the weak welding spots (4) are arranged in a zigzag shape, and the distances between the adjacent weak welding spots (4) are equal.

4. The liquid leakage prevention type polypropylene infusion bag with the composite weak welding rod as claimed in claim 1 or 2, wherein: weak welding rod (3) are the easy division bar that tears that forms through the welding between two lateral walls of the bag body (1), easily tear the welding power between division bar and the bag body (1) and be less than with the bag body (1) along the length direction who easily tears the division bar when curling pressing, easily tear the pressure that receives between division bar and the bag body (1).

5. The leakage-proof polypropylene infusion bag with the composite weak welding rod as claimed in claim 3, wherein: the welding patterns of the easy-to-tear isolating strips and the easy-to-tear isolating points are a plurality of diamond welding lines.

6. The leakage-proof polypropylene infusion bag with the composite weak welding rod as claimed in claim 1, wherein: the tail irrigation part (11) is provided with a hanging hole (12); the bag body (1) on the two sides of the tail irrigation part (11) is provided with first handheld holes (9), and the first handheld holes (9) are distributed on the two sides of the hanging hole (12).

7. The leakage-proof polypropylene infusion bag with the composite weak welding rod as claimed in claim 1, wherein: the widths of the straight line section (14) and the bending section (13) are equal, and the included angle between the straight line section (14) and the bending section (13) is 30-50 degrees.

8. The leakage-proof polypropylene infusion bag with the composite weak welding rod as claimed in claim 1, wherein: the bag body (1) is provided with a bag head body at one side provided with the mouth pipe (6), the bag head body is provided with a plurality of second hand-held holes (8), and the second hand-held holes (8) are distributed on the bag head bodies at two sides of the mouth pipe (6).

9. The leakage-proof polypropylene infusion bag with the composite weak welding rod as claimed in claim 1, wherein: the periphery of the bag body (1) is provided with a leakage-proof isolation layer (10).

10. The leakage-proof polypropylene infusion bag with the composite weak welding rod as claimed in claim 1, wherein: the four top corners of the bag body (1) are provided with fillets.

Technical Field

The invention relates to the technical field of infusion bags, in particular to a liquid leakage prevention type polypropylene infusion bag with a composite weak welding rod.

Background

In recent years, more and more attention is paid to nutrition infusion in clinical application, and particularly, patients with critical diseases or patients after surgical treatment need to be supplemented with nutrition in time to be well recovered; the existing nutritional infusion products mainly comprise glucose, amino acid, fat emulsion and the like, and the packaging mode mainly comprises the following steps: single-bag glass bottles and single-bag soft bag products, wherein the glass bottles are mainly used; the nutrition required by the human body can meet the requirements of the human body not only by a single product but also by the mutual matching of a plurality of nutrient substances.

Disclosure of Invention

The invention aims to provide a leakage-proof polypropylene infusion bag with a composite weak welding rod, aiming at solving the technical problems in the background technology.

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

a liquid leakage prevention type polypropylene infusion bag with a composite weak welding rod comprises a bag body, wherein an accommodating cavity is arranged in the bag body; the weak welding rods are arranged on the bag body, the containing cavity is divided into a plurality of cavities for containing liquid or powder, and the adjacent cavities are separated by two weak welding rods; a buffer cavity is arranged between the two weak welding rods; the weak welding rod comprises a straight line section and bending sections, wherein the straight line section is integrally formed, and the bending sections are arranged at two ends of the straight line section; the weak welding points are arranged on the bag body in the buffer cavity; the number of the mouth pipes corresponds to that of the chambers one by one, the mouth pipes are arranged on the bag body, and the mouth pipes are communicated with the chambers one by one; the number of the easy-to-fold covers is in one-to-one correspondence with the number of the mouth tubes, and the easy-to-fold covers are in one-to-one correspondence and are hermetically connected to the mouth tubes; the mouth tube and the easy-to-break cover are integrally formed; the tail filling part is arranged on the side wall of the bag body opposite to the mouth pipe, the tail filling part is communicated with the cavity before filling, and after filling, the two side walls of the bag body of the tail filling part are welded and sealed.

Furthermore, weak welding point is the easy isolation point that tears that forms through the welding between two lateral walls of the bag body, the welding power that easily tears between isolation point and the bag body is less than the pulling force that receives when pulling open two lateral walls of the bag body to opposite direction.

Furthermore, the weak welding points are arranged in a plurality of zigzag shapes, and the distances between the adjacent weak welding points are equal.

Further, weak welding rod is the easy division bar that tears that forms through the welding between two lateral walls of the bag body, easily tear the welding power between division bar and the bag body and be less than with the bag body along the length direction who easily tears the division bar when curling and pressing, easily tear the pressure that receives between division bar and the bag body.

Furthermore, the welding patterns of the easy-to-tear isolating strips and the easy-to-tear isolating points are a plurality of diamond welding lines.

Further, the tail irrigation part is provided with a hanging hole; first handheld holes are formed in the bag bodies on the two sides of the tail irrigation portion, and the first handheld holes are distributed on the two sides of the hanging hole.

Further, the widths of the straight line section and the bending section are equal, and the included angle between the straight line section and the bending section is 30-50 degrees.

Furthermore, a bag head body is arranged on one side of the bag body, which is provided with the mouth pipe, a plurality of second hand-held holes are formed in the bag head body, and the second hand-held holes are distributed in the bag head bodies on the two sides of the mouth pipe.

Furthermore, the periphery of the bag body is provided with a leakage-proof isolation layer.

Furthermore, four vertex angles of the bag body are provided with fillets. Compared with the prior art, the invention has the beneficial effects that:

1. the invention has novel structure and strong practicability. The bag body is provided with the two weak welding rods, so that a double-insurance effect is achieved, and even if a single weak welding rod is opened under an abnormal condition, the liquid or powder contained in the two cavities cannot be mixed when the two cavities are used abnormally. Greatly improves the safety of medication. The infusion bag with the weak welding rod is convenient to open.

2. By arranging the buffer cavity and the weak welding points, the probability that the infusion bag is opened under unexpected conditions (such as transportation bump, high-altitude falling, impact and the like) can be further reduced.

3. The infusion bag provided by the invention is filled in a tail filling mode, so that the situation that welding scraps fall into the cavity is avoided.

4. The weak welding rod provided by the invention is provided with the bending sections at the two ends of the straight line section, and when the weak welding rod is curled and pressed, the stress direction of the weak welding rod at the joint of the straight line section and the bending sections is changed, so that the weak welding rod at the joint is most easily opened when the weak welding rod is curled and pressed, therefore, the weak welding rod becomes an easy-tearing point when the weak welding rod is correctly curled and pressed to be opened, and the success rate of one-time opening when the weak welding rod is curled and pressed to be opened is effectively improved.

Drawings

Fig. 1 is a schematic structural diagram of a leakage-proof polypropylene infusion bag with a composite weak welding rod.

The labels in the figure are: the packaging bag comprises a bag body 1, a chamber 2, a weak welding rod 3, a weak welding point 4, a buffer cavity 5, a mouth pipe 6, an easy-to-fold cover 7, a second holding hole 8, a first holding hole 9, a leakage-proof isolating layer 10, a tail filling part 11, a hanging hole 12, a bending section 13 and a straight line section 14.

Detailed Description

The present invention will be further described with reference to the following examples, which are intended to illustrate only some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, other embodiments used by those skilled in the art without any creative effort belong to the protection scope of the present invention.