Hydroxypropionic acid methylcellulose hollow capsule

Abstract

The utility model belongs to the field of empty capsules, and particularly relates to a methylcellulose hydroxypropionate empty capsule which comprises a capsule cap, a capsule body, a limiting ring table, an isosceles trapezoid ring, a concave ring groove, a limiting ring sleeve, a convex ring sleeve, an isosceles trapezoid groove, a first notch ring groove and a second notch ring groove. An isosceles trapezoid ring is arranged on the top of the limiting ring table, and a concave ring groove is formed in the inner wall of the capsule cap. According to the methylcellulose hydroxypropionate empty capsule, through unique structural design, such as matching of the limiting ring table and the limiting ring sleeve, embedding of the isosceles trapezoid ring and the isosceles trapezoid groove and nesting of the convex ring sleeve and the concave ring groove, multiple sealing defense lines are formed. In the use process of the capsule, external moisture can be effectively prevented from entering the capsule no matter in the storage link or the transportation link, medicine is prevented from being affected with damp and going bad, meanwhile, medicine leakage can be prevented, and the effectiveness and safety of the medicine are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to hollow capsule technical field, concretely is a kind of methylcellulose of hydroxypropionic acid hollow capsule. BACKGROUND

[0002] Hollow capsule plays a key role in modern pharmaceutical preparations, as a carrier of drugs, its performance directly affects the stability of drug, release characteristics and the use experience of patients. Traditional hollow capsule is mainly with gelatin as raw material, but gelatin has many limitations. The source of gelatin depends on animal resources, its supply is affected by animal breeding scale, disease and other factors, and its stability and consistency are difficult to guarantee. In high temperature and high humidity environment, gelatin capsule is prone to crosslinking reaction, resulting in hard and brittle capsule shell, reduced drug dissolution, and affected drug absorption and efficacy. With the development of society, the vegetarian group is expanding, and the demand for non-animal source products is increasing due to religious beliefs and other factors, so it is urgent to find a substitute for gelatin. As a synthetic polymer material, methylcellulose of hydroxypropionic acid has good physical and chemical properties and biocompatibility, and becomes a new material in the field of hollow capsule.

[0003] At present, the existing methylcellulose of hydroxypropionic acid hollow capsule still has some deficiencies in structure design, such as the connection between the capsule cap and the capsule body is not tight enough, the sealing performance is poor, which can easily lead to drug leakage or moisture deterioration. In view of this, we propose a kind of methylcellulose of hydroxypropionic acid hollow capsule. UTILITY MODEL CONTENT

[0004] The main purpose of the utility model is to provide a kind of methylcellulose of hydroxypropionic acid hollow capsule, which can solve the problems raised in the above background.

[0005] To achieve the above purpose, the methylcellulose of hydroxypropionic acid hollow capsule provided by the utility model, including capsule cap, capsule body, limit ring table, isosceles ladder ring, concave ring groove, limit ring sleeve, convex ring sleeve, isosceles ladder groove, gap ring groove one, gap ring groove two, the capsule body is set in the capsule cap, the inner wall of the capsule cap is provided with limit ring table, the top of the limit ring table is provided with isosceles ladder ring, the inner wall of the capsule cap is provided with concave ring groove, the top of the capsule body is provided with limit ring sleeve, the outer wall of the limit ring sleeve is provided with convex ring sleeve, the limit ring sleeve is provided with isosceles ladder groove, the outer wall of the capsule cap is provided with gap ring groove one, the outer wall of the capsule body is provided with gap ring groove two.

[0006] Preferably, the cross-sectional shape of the limit ring table is L-shaped, and the limit ring table and the capsule cap are of an integrated structure. This integrated design enhances the integrity and stability of the structure.

[0007] Preferably, the limiting ring sleeve and the capsule body are integrated structure, the limiting ring sleeve is matched in the limiting ring table, the integrated design enhances the integrity and stability of the structure.

[0008] Preferably, the concave ring groove is provided with two groups, and the isosceles ladder ring is matched in the isosceles ladder groove.

[0009] Preferably, the convex ring sleeve is provided with two groups, and the convex ring sleeve can be matched in the concave ring groove.

[0010] Preferably, the capsule cap and the capsule body are made of hydroxypropionic methyl cellulose.

[0011] The utility model provides a kind of hydroxypropionic methyl cellulose hollow capsule.It has the following beneficial effects:

[0012] (1), the hydroxypropionic methyl cellulose hollow capsule is sealed by the cooperation of limiting ring table and limiting ring sleeve, the inlaying of isosceles ladder ring and isosceles ladder groove and the nesting of convex ring sleeve and concave ring groove, which forms multiple sealing lines.In the use process of capsule, whether in storage or transportation link, it can effectively prevent external moisture from entering the capsule, avoid drug dampness metamorphism, and also can prevent drug leakage, ensure the effectiveness and safety of drug.The design of this sealing structure greatly improves the reliability of sealing compared with traditional hollow capsule, and provides more stable storage environment for drug.

[0013] (2), the hydroxypropionic methyl cellulose hollow capsule capsule cap and capsule body are made of hydroxypropionic methyl cellulose, which has certain mechanical strength.The overall structural design makes the capsule evenly disperse stress when subjected to external force, and is not easy to break.In production, packaging, transportation and patient taking process, it can better maintain integrity, reduce drug waste and quality problems caused by capsule breakage, and improve the overall quality and reliability of product. ACCURACY

[0014] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawings needed to be used in embodiment or prior art description, obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to the structure shown in these drawings without creative labor.

[0015] Figure 1 It is the whole three-dimensional structure schematic diagram of the utility model;

[0016] Figure 2 It is the capsule cap and capsule body part explosion section structure schematic diagram of the utility model;

[0017] Figure 3 Structure diagram of the utility model Figure 2 Enlarged diagram of A;

[0018] Figure 4 Structure diagram of the utility model Figure 2 Enlarged diagram of B.

[0019] Explanation of reference numerals: 1, capsule cap; 2, capsule body; 3, limiting ring table; 4, isosceles ladder ring; 5, concave ring groove; 6, limiting ring sleeve; 7, convex ring sleeve; 8, isosceles ladder groove; 9, notch ring groove I; 10, notch ring groove II.

[0020] The utility model realizes the purpose, functional characteristics and advantages, which will be further described in combination with embodiments and with reference to the drawings. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model. Apparently, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] Please refer to Figure 1 - Figure 4 The utility model provides a kind of hydroxypropionic acid methyl cellulose hollow capsule, including capsule cap 1, capsule body 2, limiting ring table 3, isosceles ladder ring 4, concave ring groove 5, limiting ring sleeve 6, convex ring sleeve 7, isosceles ladder groove 8, notch ring groove I 9, notch ring groove II 10, capsule body 2 is set in capsule cap 1, both cooperate closely, the inner wall of capsule cap 1 is provided with limiting ring table 3, the top of limiting ring table 3 is provided with isosceles ladder ring 4, the inner wall of capsule cap 1 is provided with concave ring groove 5, the top of capsule body 2 is provided with limiting ring sleeve 6, the outer wall of limiting ring sleeve 6 is provided with convex ring sleeve 7, limiting ring sleeve 6 is provided with isosceles ladder groove 8, the outer wall of capsule cap 1 is provided with notch ring groove I 9, the outer wall of capsule body 2 is provided with notch ring groove II 10, the design of these notch ring grooves is favorable to better fixed capsule in the production process of capsule, such as surface treatment, printing mark operation, etc., improve production efficiency and quality.

[0023] In the utility model, the cross section shape of the limiting ring table 3 is L-shaped, the limiting ring table 3 and the capsule cap 1 are integrated structure, the integrated design enhances the integrity and stability of structure, the limiting ring sleeve 6 and the capsule body 2 are integrated structure, the limiting ring sleeve 6 is fitted in the limiting ring table 3, by making limiting ring sleeve 6 fit in limiting ring table 3, guarantee the accuracy and firmness of capsule cap 1 and capsule body 2 connection, realize accurate positioning and good connection stability, recessed ring groove 5 is provided with two groups, isosceles ladder ring 4 is fitted in isosceles ladder groove 8, convex ring sleeve 7 is provided with two groups, convex ring sleeve 7 can fit in recessed ring groove 5, further enhance the sealing effect, prevent medicine leakage, capsule cap 1 and capsule body 2 are made of hydroxypropionic acid methyl cellulose.

[0024] The above only is the preferred embodiment of the utility model, and does not limit the patent range of the utility model, and the equivalent structure transformation of the contents of the utility model specification and drawings under the inventive concept of the utility model, or direct / indirect application in other related technical fields are included in the patent protection range of the utility model.

Claims

1. A hydroxypropyl methylcellulose empty capsule, characterized in that: The capsule includes a capsule cap (1), a capsule body (2), a limiting ring platform (3), an isosceles trapezoidal ring (4), a concave ring groove (5), a limiting ring sleeve (6), a convex ring sleeve (7), an isosceles trapezoidal groove (8), a notched ring groove one (9), and a notched ring groove two (10). The capsule body (2) is fitted inside the capsule cap (1). The inner wall of the capsule cap (1) is provided with a limiting ring platform (3). The top of the limiting ring platform (3) is provided with an isosceles trapezoidal ring (4). The inner wall of the capsule cap (1) is provided with a concave ring groove (5). The top of the capsule body (2) is provided with a limiting ring sleeve (6). The outer wall of the limiting ring sleeve (6) is provided with a convex ring sleeve (7). The limiting ring sleeve (6) is provided with an isosceles trapezoidal groove (8). The outer wall of the capsule cap (1) is provided with a notched ring groove one (9). The outer wall of the capsule body (2) is provided with a notched ring groove two (10).

2. The hydroxypropyl methylcellulose empty capsule according to claim 1, characterized in that: The limiting ring platform (3) has an L-shaped cross-section, and the limiting ring platform (3) and the capsule cap (1) are an integral structure.

3. The hydroxypropyl methylcellulose empty capsule according to claim 1, characterized in that: The limiting ring sleeve (6) and the capsule body (2) are an integral structure, and the limiting ring sleeve (6) is fitted in the limiting ring platform (3).

4. The hydroxypropyl methylcellulose empty capsule according to claim 1, characterized in that: The concave annular groove (5) is provided in two sets, and the isosceles trapezoidal ring (4) is fitted in the isosceles trapezoidal groove (8).

5. A hydroxypropyl methylcellulose empty capsule according to claim 1, characterized in that: The convex ring sleeve (7) is provided in two sets, and the convex ring sleeve (7) can be fitted into the concave ring groove (5).

6. The hydroxypropyl methylcellulose empty capsule according to claim 1, characterized in that: Both the capsule cap (1) and the capsule body (2) are made of methyl hydroxypropionate.

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