Sterile connector without male-female two-stage buckle separation

Abstract

The utility model relates to the technical field of sterile connectors, and discloses a male-female two-stage buckle-free sterile connector which comprises a first connector body, a second connector body and two semi-open protective covers, a first sealing column is sleeved on the inner side of the middle of the first connector body, and a second sealing column is sleeved on the inner side of the middle of the second connector body. The inner side of the middle part of the second connector body is sleeved with a second sealing column which can be aligned with the first sealing column. According to the utility model, the first limiting block, the second limiting block, the first combined groove, the second combined groove, the third combined groove and the fourth combined groove which are matched with each other, and the third limiting block and the fourth limiting block which are matched with each other form a multi-clamping assembly structure; the first sterile connector and the second sterile connector can enter a preliminary clamping assembly state and a complete clamping assembly state respectively, the connection strength of the first sterile connector and the second sterile connector is fully improved, the probability of buckle failure is reduced, and meanwhile sterile butt joint is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of aseptic connectors, in particular to an aseptic connector with two-level buckles that are not divided into male and female. Background Art

[0002] As a device for transferring liquids under sterile conditions, a sterile connector works by connecting two containers or pipes so that the liquid can be transferred without being contaminated by outside air, bacteria, yeast or mold, ensuring that the liquid remains sterile during the transfer process. It is widely used in medical, pharmaceutical, bioprocessing and other fields. With the improvement of usage requirements and the increase in demand for use, researchers in related fields are constantly improving sterile connectors. For example, the patent document with application number 202320252592.0 proposes that "by setting an easy-tear edge, the sealing film can be torn off more easily. By setting a snap-fit ​​structure, when the sterile connector is mated, the two sealing films can be removed synchronously, thereby better ensuring the local sterile environment of the connector."

[0003] However, during the actual use of the sterile connector, the applicant discovered that the sealing film of the sterile connector is difficult to tear off for reasons other than those disclosed in the above-mentioned prior art. In addition, the assembly of two sterile connectors only has a single-time snap-on assembly effect. Therefore, when the assembly is very complete, the gap for tearing off the sealing film must be small, making it difficult to remove. Secondly, the sealing film currently used is a single-layer structure, and the force is not easy to control, and it is easy to tear. Furthermore, most of the existing sterile connectors are single-time snap-on assemblies, the connection strength is average, and the probability of snap failure is high. Utility Model Content

[0004] The utility model provides a male-female two-stage buckle aseptic connector, which solves the problems raised in the above background technology.

[0005] The utility model provides the following technical solution: a male-female two-stage buckle aseptic connector, comprising a first connector body, a second connector body and two semi-open protective covers, wherein a first sealing column is sleeved on the inner side of the middle part of the first connector body, a second sealing column that can be aligned with the first sealing column is sleeved on the inner side of the middle part of the second connector body, and a first bacteria-blocking covering film and a second bacteria-blocking covering film are detachably installed at the open end of the first sealing column and the open end of the second sealing column respectively;

[0006] A first limit block and a second limit block are arranged on one side of the first connector body, a first combination groove and a second combination groove are opened on one side of the second connector body, the first combination groove and the second combination groove can be assembled and connected with the first limit block and the second limit block respectively, a third combination groove and a fourth combination groove are opened on the other side of the first connector body, a third limit block and a fourth limit block are arranged on the other side of the second connector body, the third limit block and the fourth limit block can be assembled and connected with the third combination groove and the fourth combination groove respectively.

[0007] Preferably, the two semi-open protective covers can be respectively assembled with the first connector body and the second connector body, and the inner walls of the open ports of the two semi-open protective covers are fixedly connected with a fifth limit block, and the fifth limit block can perform contact limit on the first connector body or the second connector body. The two semi-open protective covers can respectively cover the second connector body and the first connector body to prevent dust, so as to avoid the first connector body and the second connector body from being contaminated before use.

[0008] Preferably, during the assembly of the first connector body and the second connector body, the second combination groove and the second limiting block are snap-fitted and assembled before the first limiting block and the first combination groove are snap-fitted and assembled.

[0009] Preferably, during the assembly process of the first connector body and the second connector body, the third limiting block is snap-fitted and assembled with the third combination groove before the fourth limiting block is snap-fitted and assembled with the fourth combination groove.

[0010] Preferably, annular assembly spaces are provided on both sides of the first connector body and both sides of the second connector body, the second limit block and the first limit block are respectively fixedly mounted on the inner wall of the inner circle and the inner wall of the outer circle of the annular assembly space on one side of the first connector body, and the third combination groove and the fourth combination groove are respectively opened in the inner wall of the inner circle and the inner wall of the outer circle of the annular assembly space on the other side of the first connector body.

[0011] Preferably, the third limit block and the fourth limit block are respectively fixedly mounted on the inner wall of the inner ring and the inner wall of the outer ring of the annular assembly space on one side of the second connector body, and the first combination groove and the second combination groove are respectively opened in the inner wall of the inner ring and the inner wall of the outer ring of the annular assembly space on the other side of the second connector body.

[0012] The first antibacterial covering film and the second antibacterial covering film have the same structure and are both multi-layer film structures to ensure the strength of their own structures. One end of the first antibacterial covering film is installed at the open port of the first sealing column by welding, and one end of the second antibacterial covering film is also installed at the open port of the second sealing column by welding to facilitate subsequent removal operations.

[0013] Preferably, the other end of the first antibacterial covering film can extend from the connecting gap between the first connector body and the semi-open protective cover to the outside of the first connector body after the first connector body and the semi-open protective cover are in a fitted state, and the other end of the second antibacterial covering film can extend from the connecting gap between the second connector body and the other semi-open protective cover to the outside of the first connector body after the second connector body and the other semi-open protective cover are in a fitted state, thereby facilitating the pulling and removal of the first antibacterial covering film and the second antibacterial covering film.

[0014] The utility model has the following beneficial effects:

[0015] 1. The first limit block and the second limit block provided in the utility model are matched with the first combination groove and the second combination groove, and the third combination groove and the fourth combination groove are matched with the third limit block and the fourth limit block to form a multiple snap-fit ​​assembly structure, which is then used in combination with the first aseptic connector composed of the first connector body, the first sealing column and the first antibacterial covering film, and the second aseptic connector composed of the second connector body, the second sealing column and the second antibacterial covering film. The second limit block on one side of the first connector body and the second combination groove on one side of the second connector body, and the fourth combination groove on the other side of the first connector body and the fourth limit block on the other side of the second connector body can enter a snap-fit ​​state, so that the first connector body and the second connector body enter a preliminary snap-fit ​​assembly state. When the first antibacterial covering film and the second antibacterial covering film between the first connector body and the second connector body have a relatively loose gap space, the first antibacterial covering film and the second antibacterial covering film can be stably and easily removed, thereby solving the problem that the sealing film in the prior art is difficult to remove and easy to tear.

[0016] 2. The utility model forms a multiple snap-on assembly structure through the first limit block, the second limit block and the matching first combination groove, the second combination groove, the third combination groove, the fourth combination groove and the matching third limit block, the fourth limit block. In the assembly process of the above-mentioned first sterile connector and the second sterile connector, the two can be respectively put into a preliminary snap-on assembly state and a complete snap-on assembly state, which fully improves the connection strength between the first sterile connector and the second sterile connector, reduces the probability of snap failure and realizes aseptic docking.

[0017] 3. The utility model is provided with a multiple snap-on assembly structure and a two-stage snap-on, providing double protection. If the second-stage snap-on fails, there is still the first-stage snap-on for protection, which is safer and more reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a cross-sectional schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a front view schematic diagram of the first connector body of the utility model structure;

[0020] Figure 3 It is a top view schematic diagram of the first connector body of the utility model structure;

[0021] Figure 4 It is a bottom view schematic diagram of the second connector body of the utility model structure;

[0022] Figure 5 It is an enlarged schematic diagram of the semi-open protective cover of the utility model structure;

[0023] Figure 6 This is a schematic diagram of the preliminary assembly of the structure of the utility model;

[0024] Figure 7 This is a schematic diagram of the complete assembly of the utility model structure.

[0025] In the figure: 1. first connector body; 2. second connector body; 3. first sealing column; 4. second sealing column; 5. first antibacterial covering film; 6. second antibacterial covering film; 7. first limit block; 8. second limit block; 9. first combination groove; 10. second combination groove; 11. third combination groove; 12. fourth combination groove; 13. third limit block; 14. fourth limit block; 15. semi-open protective cover; 16. fifth limit block. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-7A non-male and female two-stage aseptic connector, comprising a first connector body 1, a second connector body 2 and two semi-open protective covers 15, a first sealing column 3 is sleeved on the inner side of the middle of the first connector body 1, a second sealing column 4 that can be aligned with the first sealing column 3 is sleeved on the inner side of the middle of the second connector body 2, and a first anti-bacteria covering film 5 and a second anti-bacteria covering film 6 are detachably installed at the open end of the first sealing column 3 and the open end of the second sealing column 4 respectively;

[0028] A first limit block 7 and a second limit block 8 are provided in one side of the first connector body 1, a first combination groove 9 and a second combination groove 10 are provided in one side of the second connector body 2, and the first combination groove 9 and the second combination groove 10 can be assembled and connected with the first limit block 7 and the second limit block 8 respectively, a third combination groove 11 and a fourth combination groove 12 are provided in the other side of the first connector body 1, and a third limit block 13 and a fourth limit block 14 are provided in the other side of the second connector body 2, and the third limit block 13 and the fourth limit block 14 can be assembled and connected with the third combination groove 11 and the fourth combination groove 12 respectively;

[0029] During the assembly of the first connector body 1 and the second connector body 2, the second combination groove 10 and the second limit block 8 are assembled before the first limit block 7 and the first combination groove 9 are assembled. During the assembly of the first connector body 1 and the second connector body 2, the third limit block 13 and the third combination groove 11 are assembled before the fourth limit block 14 and the fourth combination groove 12 are assembled.

[0030] Both sides of the first connector body 1 and both sides of the second connector body 2 are provided with annular assembly spaces, the second limit block 8 and the first limit block 7 are respectively fixedly mounted on the inner wall of the inner ring and the inner wall of the outer ring of the annular assembly space on one side of the first connector body 1, the third combination groove 11 and the fourth combination groove 12 are respectively opened in the inner wall of the inner ring and the inner wall of the outer ring of the annular assembly space on the other side of the first connector body 1, the third limit block 13 and the fourth limit block 14 are respectively fixedly mounted on the inner wall of the inner ring and the inner wall of the outer ring of the annular assembly space on one side of the second connector body 2, and the first combination groove 9 and the second combination groove 10 are respectively opened in the inner wall of the inner ring and the inner wall of the outer ring of the annular assembly space on the other side of the second connector body 2;

[0031] The two half-open protective covers 15 can be respectively mounted on the first connector body 1 and the second connector body 2, and the inner walls of the open ports of the two half-open protective covers 15 are fixedly connected with fifth limit blocks 16, and the fifth limit blocks 16 can contact and limit the first connector body 1 or the second connector body 2 in the mounted state with the corresponding half-open protective covers 15. The two half-open protective covers 15 can respectively cover the second connector body 2 and the first connector body 1 to prevent dust, so as to prevent the first connector body 1 and the second connector body 2 from being contaminated before use;

[0032] The first bacteria-barrier covering film 5 and the second bacteria-barrier covering film 6 have the same structure and are both multi-layer film structures to ensure the strength of their own structures. One end of the first bacteria-barrier covering film 5 is installed at the open end of the first sealing column 3 by welding, and one end of the second bacteria-barrier covering film 6 is also installed at the open end of the second sealing column 4 by welding. The welding method controls the welding temperature and pressure to achieve semi-fusion and thus disassembly, which is convenient for subsequent removal operations. The other end of the first bacteria-barrier covering film 5 can extend from the connection gap between the first connector body 1 and a semi-open protective cover 15 to the outside of the first connector body 1 after the first connector body 1 and a semi-open protective cover 15 are in a fitted state. The other end of the second bacteria-barrier covering film 6 can extend from the connection gap between the second connector body 2 and the other semi-open protective cover 15 to the outside of the first connector body 1 after the second connector body 2 and the other semi-open protective cover 15 are in a fitted state, thereby facilitating the pulling and removal of the first bacteria-barrier covering film 5 and the second bacteria-barrier covering film 6.

[0033] Working principle: When in use, remove the semi-open protective cover 15 covering the surface of the first connector body 1 and the semi-open protective cover 15 covering the surface of the second connector body 2, then assemble and snap-fit ​​the bottom of the first connector body 1 and the top of the second connector body 2 until the second limit block 8 on one side of the first connector body 1 and the second combination groove 10 on one side of the second connector body 2, and the fourth combination groove 12 on the other side of the first connector body 1 and the fourth limit block 14 on the other side of the second connector body 2 enter the snap-fit ​​state. After completion, the first connector body 1 and the second connector body 2 are in a preliminary snap-fit ​​assembly state;

[0034] When the first connector body 1 and the second connector body 2 are in a preliminary snap-fit ​​assembly state, the first antibacterial covering film 5 and the second antibacterial covering film 6 between the first connector body 1 and the second connector body 2 have a relatively loose gap space. Then, the other end of the first antibacterial covering film 5 and the other end of the second antibacterial covering film 6 are held and pulled synchronously and quickly. Subsequently, the first connector body 1 and the second connector body 2 are immediately further pressed to make the first limit block 7 on one side of the first connector body 1 and the first combination groove 9 on one side of the second connector body 2, and the third combination groove 11 on the other side of the first connector body 1 and the third limit block 13 on the other side of the second connector body 2 enter a snap-fit ​​state. After completion, the first connector body 1 and the second connector body 2 are in a completely snap-fit ​​assembly state, thereby realizing the complete assembly and connection of the first connector body 1 and the second connector body 2, ready for use.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. At the same time, in the drawings of the present utility model, the fill pattern is only for distinguishing the layers, without any other limitation.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A non-male and female two-stage aseptic connector, comprising a first connector body (1), a second connector body (2) and two half-open protective covers (15), characterized in that: A first sealing column (3) is sleeved on the inner side of the middle part of the first connector body (1), a second sealing column (4) which can be aligned with the first sealing column (3) is sleeved on the inner side of the middle part of the second connector body (2), and a first bacteria-blocking covering film (5) and a second bacteria-blocking covering film (6) are detachably mounted at the open end of the first sealing column (3) and the open end of the second sealing column (4), respectively; A first limit block (7) and a second limit block (8) are arranged on one side of the first connector body (1); a first combination groove (9) and a second combination groove (10) are provided on one side of the second connector body (2); the first combination groove (9) and the second combination groove (10) can be assembled and connected with the first limit block (7) and the second limit block (8) respectively; a third combination groove (11) and a fourth combination groove (12) are provided on the other side of the first connector body (1); a third limit block (13) and a fourth limit block (14) are provided on the other side of the second connector body (2); the third limit block (13) and the fourth limit block (14) can be assembled and connected with the third combination groove (11) and the fourth combination groove (12) respectively.

2. The aseptic connector with two-stage buckle that does not distinguish between male and female according to claim 1, characterized in that: The two semi-open protective covers (15) can be respectively mounted on the first connector body (1) and the second connector body (2), and the inner walls of the open ports of the two semi-open protective covers (15) are fixedly connected with fifth limit blocks (16), and the fifth limit blocks (16) can perform contact limit on the first connector body (1) or the second connector body (2).

3. The aseptic connector with two-stage buckle and no male or female distinction according to claim 1, characterized in that: During the assembly process of the first connector body (1) and the second connector body (2), the second combination groove (10) and the second limit block (8) are snap-fitted and assembled before the first limit block (7) and the first combination groove (9) are snap-fitted and assembled.

4. The aseptic connector with two-stage buckle that does not distinguish between male and female according to claim 1, characterized in that: During the assembly process of the first connector body (1) and the second connector body (2), the third limit block (13) and the third combination slot (11) are snap-fitted and assembled before the fourth limit block (14) and the fourth combination slot (12) are snap-fitted and assembled.

5. The aseptic connector with two-stage buckle and no male or female distinction according to claim 1, characterized in that: Annular assembly spaces are provided on both sides of the first connector body (1) and on both sides of the second connector body (2); the second limit block (8) and the first limit block (7) are respectively fixedly mounted on the inner wall of the inner circle and the inner wall of the outer circle of the annular assembly space on one side of the first connector body (1); and the third combination groove (11) and the fourth combination groove (12) are respectively opened in the inner wall of the inner circle and the inner wall of the outer circle of the annular assembly space on the other side of the first connector body (1).

6. The aseptic connector with two-stage buckle that does not distinguish between male and female according to claim 5, characterized in that: The third limit block (13) and the fourth limit block (14) are respectively fixedly mounted on the inner wall of the inner ring and the inner wall of the outer ring of the annular assembly space on one side of the second connector body (2), and the first combination groove (9) and the second combination groove (10) are respectively opened in the inner wall of the inner ring and the inner wall of the outer ring of the annular assembly space on the other side of the second connector body (2).

7. The aseptic connector with two-stage buckle and no male or female distinction according to claim 1, characterized in that: The first bacteria-blocking covering film (5) and the second bacteria-blocking covering film (6) have the same structure and are both multi-layer film structures. One end of the first bacteria-blocking covering film (5) is installed at the open end of the first sealing column (3) by welding, and one end of the second bacteria-blocking covering film (6) is also installed at the open end of the second sealing column (4) by welding.

8. The aseptic connector with two-stage buckle and no male or female distinction according to claim 1, characterized in that: The other end of the first antibacterial covering film (5) can extend from a connection gap between the first connector body (1) and the semi-open protective cover (15) to the outside of the first connector body (1) after the first connector body (1) and the semi-open protective cover (15) are in a fitted state, and the other end of the second antibacterial covering film (6) can extend from a connection gap between the second connector body (2) and the other semi-open protective cover (15) to the outside of the first connector body (1) after the second connector body (2) and the other semi-open protective cover (15) are in a fitted state.

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