CN220792417U - Connector type sterile disconnecting device - Google Patents

Abstract

The utility model discloses a joint type sterile disconnecting device, which comprises: a first connector including a first housing, a first valve assembly, and an elastic driving member, forming a first flow path; a second connector including a second housing formed with a second flow path; a gap is provided between the first housing and the first valve assembly to accommodate the resilient drive member; the first connector and the second connector are in a communicating state and a separating state, when the first connector and the second connector are in the communicating state, a flow passage for feeding liquid to flow is formed by communication between the first flow passage and the second flow passage, the flow passage is isolated from a gap, and the elastic driving piece is in a compressed state; when the elastic driving piece is in a separation state, the flow channel is disconnected to prevent the flow of feed liquid, the flow channel is isolated from the gap, and the elastic driving piece is in an extension state; and a sealing element is arranged at the gap to isolate the flow passage from the gap. The elastic driving piece of the utility model can not be in direct contact with feed liquid, so that the sterility and cleanliness of the feed liquid are maintained, and the structure selection range of the second connector is large.

Description

Connector type sterile disconnecting device

Technical Field

The utility model belongs to the technical field of fluid coupling, and particularly relates to a joint type sterile disconnecting device.

Background

Biological fluid bags (e.g., sampling bags, stirred bags, or bioreactor bags, etc.) may include fluid transfer systems consisting of multiple pipes, pumps, containers, fittings, couplings, heat exchangers, sensors, filters, valves, seals, etc., for the ingress and egress of fluids and for the transport of fluids. In order to maintain sterility, the biological fluid bag is usually a disposable closed system, and after the exchange of the fluid in the biological fluid bag is completed, the interior of the biological fluid bag needs to be disconnected from the exterior in time so as to maintain the sterility of the environment in the biological fluid bag; therefore, it is usually implemented using a disconnector.

The current breaker structure with wide market application comprises two parts which are matched with each other, according to the structure disclosed in CN1035898C, the tip of the valve core and the tip of the valve core are mutually propped against each other to be matched, so that backward force is mutually exerted to open a fluid passage between the male connector and the female connector, and at the moment, the metal springs of the valve cores at the two sides are in a compressed state; however, because the metal springs of the valve cores at two sides are in direct contact with the feed liquid, the metal springs are easy to rust when being irradiated or sterilized from the outside, and the risk of polluting the feed liquid exists.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model provides the joint type sterile disconnecting device which can achieve the effect of avoiding the pollution of feed liquid caused by the direct contact of an elastic driving piece and the feed liquid.

The technical scheme adopted for solving the technical problems is as follows: a splice-type sterile disconnect device, comprising:

a first connector including a first housing, a first valve assembly, and an elastic driving member, the first valve assembly forming a first flow path;

a second connector detachably connected to the first connector, including a second housing formed with a second flow path;

a gap is formed between the first housing and the first valve assembly to accommodate the elastic driving member and provide an axial telescopic space thereof;

the first connector and the second connector have a communicating state and a separating state, when the first connector and the second connector are in the communicating state, a flow passage for flowing feed liquid is formed by communicating the first flow passage and the second flow passage, the flow passage is isolated from the gap, and the elastic driving piece is in a compressed state; when the elastic driving piece is in a separation state, the flow channel is disconnected to prevent the flow of feed liquid, the flow channel is isolated from the gap, and the elastic driving piece is in an extension state; and a sealing element is arranged at the gap to isolate the flow passage from the gap.

By adopting the technical scheme, a gap is formed between the first shell and the first valve component in the joint type sterile disconnecting device, and a sealing element is arranged at the gap and isolates the flow passage from the gap, so that the elastic driving element is isolated from the flow passage, namely the elastic driving element cannot be in direct contact with feed liquid, and the sterility and cleanliness of the feed liquid are maintained; because the gap is continuously extended, the gap is free of a blocking piece, so that the elastic driving piece can stretch and compress in the gap without blocking; along with the connection between the first connector and the second connector, the elastic driving piece is compressed, the first flow path and the second flow path between the first connector and the second connector are communicated to form a flow path for the flow of the feed liquid, and the feed liquid is isolated from the gap, so that the feed liquid is not contacted with the elastic driving piece, and the risk of pollution caused by the contact of the feed liquid with the elastic driving piece is avoided; along with the separation between the first connector and the second connector, the elastic driving piece stretches, the flow channel between the first connector and the second connector is disconnected, and feed liquid cannot flow between the first flow channel and the second flow channel, at the moment, the first flow channel in the first connector and the elastic driving piece still keep a mutually isolated state, namely the elastic driving piece cannot be in direct contact with the feed liquid, so that the sterility and the cleanliness of the feed liquid are maintained; the flow channel is isolated from the gap through the sealing element, so that the material liquid is effectively prevented from leaking to be contacted with the elastic driving element when the first connector is communicated with the second connector, and the material liquid adhered to the two connectors is prevented from leaking to the shell and flowing back to the gap to pollute the elastic driving element when the first connector is disconnected from the second connector; the first connector and the second connector may have the same or different structures; the gap is provided with the sealing element, so that the structure of the second connector is the same as or different from that of the first connector, the elastic driving element can be ensured to be in a relatively closed environment, the elastic driving element can not be in direct contact with feed liquid, and the structure selection range of the second connector is larger.

Further, the first valve assembly at least comprises a first main body and a first valve sleeve, the first main body is provided with a first hollow cavity and a first side opening communicated with the first hollow cavity, and the first valve sleeve is movably sleeved on the outer side of the first main body so as to form the gap among the first main body, the first valve sleeve and the first shell; when the first connector and the second connector are switched from the communicating state to the separating state, the elastic driving piece stretches to push the first valve sleeve to seal and block the first side opening, and the flow channel is disconnected.

By adopting the technical scheme, the motion process is as follows: when the feed liquid is transferred between the first connector and the second connector, the first connector and the second connector are in a communication state, the first shell and the second shell are in abutting joint at the moment, the elastic driving piece is in a compressed state, the first valve sleeve is forced to be separated from the first side opening, and the feed liquid flows in through the second flow path of the second shell and flows out to the first hollow cavity through the first side opening; when the first connector and the second connector are in a separated state, the compression on the elastic driving piece is eliminated along with the separation of the first connector and the second connector in a direction tending to be away from each other, and the first valve sleeve is pushed to seal the first side opening along with the elastic driving piece in the process of restoring the natural extension state, so that the first flow path and the second flow path are disconnected; the first side opening is sealed through the axial movement of single simple part as the sealing element, namely the first valve pocket, compare the mode of sealing the first side opening with other complicated parts or a plurality of part movements, first valve pocket simple structure and motion process are smooth and easy, avoid taking place to block or the driving force is not enough and cause first valve pocket not reach the sealing position in the motion process, reduced sealing process's accuracy and accuracy, lead to first side open-ended sealed effect inefficacy. In addition, as the elastic driving piece surrounds the outer peripheral surface of the first main body with the first hollow cavity, and when the first connector is connected with the second connector, the opening at the first side is sealed by the first valve sleeve, so that feed liquid flows in the sealed space isolated from the elastic driving piece and cannot contact with the elastic driving piece, the risk that the elastic driving piece contacts the feed liquid to pollute the feed liquid is avoided, and the sterility and the cleanliness of the feed liquid are maintained.

Further, the seal is located between the first housing and the first valve housing.

Through adopting above-mentioned technical scheme, the sealing member is located between first shell and the first valve pocket, when first valve assembly moves relative first shell, be in sealing state all the time between first shell and the first valve pocket, because first shell and first valve pocket can not form great dislocation, above-mentioned sealing state can effectively keep in whole activity in-process, avoid the feed liquid to permeate the clearance through the gap between first shell and the first valve pocket, avoid the risk that elastic drive piece contacted the feed liquid and pollute it, keep the sterility and the cleanliness factor of feed liquid.

Further, a sliding groove and a sliding block are arranged between the inner wall of the first shell and the outer wall of the first valve sleeve, the sliding block is connected in the sliding groove in an axial sliding manner so as to limit the circumferential rotation of the first valve sleeve and the first shell, and the sealing piece is positioned between the first shell and the first valve sleeve and corresponds to the outer portion of the sliding groove.

By adopting the technical scheme, the matching structure of the sliding block and the sliding groove is simple and effective, and the sliding block is connected in the sliding groove in a sliding way, so that the first valve sleeve can only axially translate relative to the first shell, the second valve sleeve can only axially translate relative to the second shell, circumferential deflection can not occur, the axial movement of the first valve sleeve relative to the first shell is ensured, the axial movement of the second valve sleeve relative to the second shell is ensured, shaking is not easy to occur, unstable connection state caused by misoperation or external vibration is avoided, and sterility in the connection state is ensured; the elastic driving piece can be abutted with the sliding block, so that the compression and extension strokes of the elastic driving piece are limited by the matching of the sliding block and the sliding groove, and the elastic driving piece is prevented from being excessively extended; the sealing element is positioned outside the chute, that is to say, the sealing position of the sealing element is positioned outside the chute, so that the sealing isolation of the gap cannot be adversely affected in the relative sliding process of the sliding block and the chute, the gap is ensured to be in an effective sealing state, the feed liquid cannot be leaked into the gap, the elastic driving element is prevented from being in direct joint contact with the feed liquid, and the sterility and cleanliness of the feed liquid are ensured.

Further, the first main body is provided with a first sealing end for sealing one end of the first hollow cavity; the second connector further comprises a second main body and a second valve sleeve sleeved outside the second main body, the second main body is provided with a second hollow cavity, a second side opening communicated with the second hollow cavity and a second sealing end used for sealing one end of the second hollow cavity, a second gap is formed among the second main body, the second valve sleeve and the second housing, and a second elastic driving piece is accommodated in the second gap and provides an axially telescopic space for the second elastic driving piece.

By adopting the technical scheme, the motion process is as follows: when the feed liquid is transferred between the first connector and the second connector, the first connector and the second connector are in a communication state, at the moment, the first shell and the second shell are abutted, one ends of the first valve sleeve and the second valve sleeve, which are close to each other, are abutted against each other, and are in a sealing connection state axially, at the moment, the runner is in a sealed state and isolated from the gap and the second gap, the elastic driving piece and the second elastic driving piece are in a compressed state, the first valve sleeve is forced to be separated from the first side opening and the second valve sleeve is separated from the second side opening, and the feed liquid flows out through the first side opening of the first hollow cavity and flows into the second hollow cavity through the second side opening; when the first connector and the second connector are in a separated state, the first valve sleeve and the second valve sleeve move in the direction approaching each other along with the separation of the first connector and the second connector in the direction approaching each other along with the withdrawal of the abutting between the first valve sleeve and the second valve sleeve, and meanwhile, the compression between the elastic driving piece and the second elastic driving piece is also eliminated, and along with the process that the elastic driving piece and the second elastic driving piece restore to the natural extension state, the first valve sleeve is respectively pushed to seal the first side opening and the second valve sleeve is respectively pushed to seal the second side opening, and a flow path between the first side opening and the second side opening is disconnected; the first side opening and the second side opening are respectively sealed through the axial movement of the single simple part serving as a sealing element, namely the first valve sleeve and the second valve sleeve, compared with the mode that the first side opening and the second side opening are sealed through the movement of other complex parts or a plurality of parts, the first valve sleeve and the second valve sleeve are simple in structure and smooth in movement process, the problem that the first valve sleeve and the second valve sleeve do not reach a sealing position due to the fact that clamping or insufficient pushing force occurs in the movement process is avoided, and the accuracy and precision of the sealing process are reduced, so that the sealing effect of the first side opening and the second side opening is invalid. In addition, as the elastic driving piece surrounds the outer peripheral surface of the first main body with the first hollow cavity, the second elastic driving piece surrounds the outer peripheral surface of the second main body with the second hollow cavity, and when the first connector is connected with the second connector, the first side opening is sealed by the first valve sleeve and the second side opening is sealed by the second valve sleeve, so that feed liquid flows in a sealed space isolated from the elastic driving piece and the second elastic driving piece and cannot contact with the elastic driving piece and the second elastic driving piece, the risk that the elastic driving piece contacts the feed liquid to pollute the feed liquid is avoided, and the sterility and the cleanliness of the feed liquid are maintained.

Further, a connecting piece is arranged on the first valve sleeve; when the first connector and the second connector are in a communicating state, the first sealing end and the second sealing end are enclosed in the connecting piece, and the connecting piece is positioned in the first shell and the second shell; when the first connector and the second connector are in a disconnected state, the connecting piece is positioned outside the first shell and the second shell and is used for receiving feed liquid;

the connecting piece is integrally connected with the first valve sleeve; or the connecting piece is divided into two parts and is respectively connected with one end of the first valve sleeve and one end of the second valve sleeve, which are close to each other.

By adopting the technical scheme, when the flow paths between the first connector and the second connector are communicated, the first valve sleeve, the connecting piece and the second valve sleeve are integrally and directly contacted with feed liquid, the connecting piece surrounds the peripheries of the first sealing end and the second sealing end, so that the feed liquid is prevented from leaking, the feed liquid is prevented from being contacted with the elastic driving piece and the second elastic driving piece, and the sterility and the cleanliness of the feed liquid are ensured; when the flow path between the first connector and the second connector is disconnected, the elastic driving piece moves towards the stretching state to push the first valve sleeve, the connecting piece and the second valve sleeve to move towards the approaching direction to seal the first side opening and the second side opening, so that one connecting piece is connected to one of the first valve sleeve or the second valve sleeve, the inner surface of the connecting piece at the part where the first valve sleeve and the second valve sleeve are close to each other can receive feed liquid, the residual feed liquid is prevented from being scattered randomly when the first connector and the second connector are disconnected, and the feed liquid is prevented from leaking to pollute the external environment; the structures of the first main body and the second main body can be the same or different, when the structures of the first main body and the second main body are the same, the connecting piece is divided into two parts, the two parts are respectively connected with the end parts of the first valve sleeve and the second valve sleeve, which are close to each other, integrally, the two parts of the connecting piece are respectively used for receiving residual feed liquid of the first connector and residual feed liquid of the second connector, the feed liquid receiving effect is better, the structures of the two parts of the connecting piece are the same, and the butting precision is high; when the structures of the first body and the second body are different, the connecting piece can be integrally connected to the first valve sleeve, at the moment, the connecting piece can relatively more effectively receive the residual feed liquid of the first connector, and of course, the connecting piece can also be relatively inclined when the first connector and the second connector are disconnected, so that the residual feed liquid in the second connector without the connecting piece flows to the connecting piece.

Further, a sealing element is arranged between the connecting element and the first housing and/or the second housing.

By adopting the technical scheme, when the axial length of the first valve sleeve or the second valve sleeve is relatively short, the part of the connecting piece corresponds to the first shell or the second shell, and the sealing piece is arranged between the connecting piece and the first shell or the second shell, so that the sealing state between the shell and the connecting piece can be ensured all the time, the liquid is prevented from penetrating into a gap through a gap between the shell and the connecting piece, the risk of pollution caused by the elastic driving piece contacting the liquid is avoided, and the sterility and the cleanliness of the liquid are maintained; the connecting piece is located at a position closer to the joint of the first shell and the second shell, and a sealing piece is arranged between the connecting piece and the first shell and/or the second shell, so that double sealing is realized, and the sealing effect is better.

Further, the connector axially overlaps at least a portion of the first valve sleeve or/and the second valve sleeve to form an overlapping seal disposed about the axis and extending in the axial direction.

Through adopting above-mentioned technical scheme, when the flow path intercommunication between first connector and the second connector, the connecting piece forms the overlap seal district with the one end that the valve pocket is close to each other, and sealed effect is better for both junction can bear great pressure, avoids the junction to take place to leak, and the overlap seal district of here encircles the axis and sets up complete round, also can be complete multiturn certainly, its structural strength is high, sealed effectual, avoids first valve pocket and second valve pocket to take place to leak because of receiving the feed liquid pressure in hookup location department.

Further, the seal is an elastic seal.

Through adopting above-mentioned technical scheme, because first main part and first valve pocket are the injection molding, for the problem that leakproofness is not enough and reveal can appear in the sealed form of contact between the rigid material between the injection molding, the sealed form between elastic sealing piece and the injection molding can seal the department of sealing along with elastic sealing piece deformation, can totally shutoff first main part and first valve pocket between the clearance of contact department, and sealed effectual avoids revealing.

Further, an abutting seal is formed between the second housing and the first housing along the axial direction of the breaker.

Through adopting above-mentioned technical scheme, first shell and second shell butt are sealed, guarantee the whole sealing performance of disconnect, and it can utilize sticky strip etc. to realize, avoids the maloperation to lead to the separation of first connector and second connector.

The beneficial effects of the utility model are as follows:

1) The gap is arranged between the first shell and the first valve component of the joint type sterile disconnecting device, and the gap is provided with the sealing piece which isolates the runner from the gap, so that the elastic driving piece is isolated from the runner, namely the elastic driving piece cannot be in direct contact with feed liquid, and therefore the sterility and the cleanliness of the feed liquid are maintained; because the gap is continuously extended, the gap is free of a blocking piece, so that the elastic driving piece can stretch and compress in the gap without blocking; along with the connection between the first connector and the second connector, the elastic driving piece is compressed, the first flow path and the second flow path between the first connector and the second connector are communicated to form a flow path for the flow of the feed liquid, and the feed liquid is isolated from the gap, so that the feed liquid is not contacted with the elastic driving piece, and the risk of pollution caused by the contact of the feed liquid with the elastic driving piece is avoided; along with the separation between the first connector and the second connector, the elastic driving piece stretches, the flow channel between the first connector and the second connector is disconnected, and feed liquid cannot flow between the first flow channel and the second flow channel, at the moment, the first flow channel in the first connector and the elastic driving piece still keep a mutually isolated state, namely the elastic driving piece cannot be in direct contact with the feed liquid, so that the sterility and the cleanliness of the feed liquid are maintained; the flow channel is isolated from the gap through the sealing element, so that the material liquid is effectively prevented from leaking to be contacted with the elastic driving element when the first connector is communicated with the second connector, and the material liquid adhered to the two connectors is prevented from leaking to the shell and flowing back to the gap to pollute the elastic driving element when the first connector is disconnected from the second connector; the first connector and the second connector may have the same or different structures; the gap is provided with the sealing element, so that the structure of the second connector is the same as or different from that of the first connector, the elastic driving element can be ensured to be in a relatively closed environment, the elastic driving element can not be in direct contact with feed liquid, and the structure selection range of the second connector is wider;

2) The sealing piece is arranged outside the chute, the matching structure of the sliding block and the chute is simple and effective, and the sliding block is connected in the chute in a sliding way, so that the first valve sleeve can only axially translate relative to the first shell, the second valve sleeve can only axially translate relative to the second shell, circumferential deflection can not occur, the axial movement of the first valve sleeve relative to the first shell is ensured, the axial movement of the second valve sleeve relative to the second shell is ensured, shaking is not easy to occur, unstable connection state caused by misoperation or external vibration is avoided, and sterility in the connection state is ensured; the elastic driving piece can be abutted with the sliding block, so that the compression and extension strokes of the elastic driving piece are limited by the matching of the sliding block and the sliding groove, and the elastic driving piece is prevented from being excessively extended; the sealing element is positioned outside the chute, that is to say, the sealing position of the sealing element is positioned outside the chute, so that the sealing isolation of the gap cannot be adversely affected in the relative sliding process of the sliding block and the chute, the gap is ensured to be in an effective sealing state, the feed liquid cannot be leaked into the gap, the elastic driving element is prevented from being in direct contact with the feed liquid, and the sterility and the cleanliness of the feed liquid are ensured;

3) The sealing element is an elastic sealing element, and the first main body and the first valve sleeve are injection molding elements, so that the problem of leakage caused by insufficient sealing performance can occur in a sealing mode of contact between rigid materials between the injection molding elements, the sealing mode between the elastic sealing element and the injection molding elements can seal a sealing part along with deformation of the elastic sealing element, gaps of the contact part between the first main body and the first valve sleeve can be completely blocked, and the sealing effect is good, so that leakage is avoided.

Drawings

Fig. 1 is a perspective view of a splice-type sterile disconnect device in accordance with a first embodiment of the present utility model.

Fig. 2 is a front view illustrating the first connector and the second connector according to the first embodiment of the present utility model, wherein the first connector and the second connector are in a separated state.

Fig. 3 is a split cross-sectional view of a first connector and a second connector according to a first embodiment of the present utility model, where the first connector and the second connector are in a separated state.

Fig. 4 is a cross-sectional view of a splice-type sterile disconnect device according to a first embodiment of the present utility model, with the first connector and the second connector in a connected state.

Fig. 5 is a schematic structural diagram of a first body according to a first embodiment of the present utility model.

Fig. 6 is a schematic structural view of a first valve housing according to a first embodiment of the present utility model.

Fig. 7 is a schematic structural diagram of a first housing according to a first embodiment of the utility model.

Fig. 8 is a perspective cross-sectional view of a connector-type sterile disconnection device according to a second embodiment of the present utility model, in which the first connector and the second connector are in a connected state.

Fig. 9 is a cross-sectional view of a connector-type sterile disconnection device according to a second embodiment of the present utility model, in which the first connector and the second connector are in a connected state.

Fig. 10 is a split cross-sectional view of a first connector and a second connector according to a third embodiment of the present utility model, where the first connector and the second connector are in a separated state.

Fig. 11 is a cross-sectional view of a connector-type sterile disconnection device according to a fourth embodiment of the present utility model, in which the first connector and the second connector are in a connected state.

Fig. 12 is a cross-sectional view of a connector-type sterile disconnection device according to a fourth embodiment of the present utility model, in which the first connector and the second connector are in a disconnected state.

Fig. 13 is a perspective cross-sectional view of a first connector according to a fourth embodiment of the present utility model.

Fig. 14 is a perspective cross-sectional view of a second connector according to a fourth embodiment of the present utility model.

Wherein the 1-first connector, 11-first housing, 2-second connector, 21-second housing, 3-first valve assembly, 31-first body, 311-first hollow cavity, 312-first side opening, 313-first sealing end, 3131-first detent, 314-first recess, 32-first valve housing, 321-first land, 322-slider, 323-annular ledge, 4-elastic drive, 51-second body, 511-second hollow cavity, 512-second side opening, 513-second sealing end, 5131-second detent, 514-second recess, 52-second valve housing, 521-second land, 6-second elastic drive, 71-gap, 710-seal, 72-second gap, 8-flow channel, 81-first flow channel, 82-second flow channel, 9-connector, 91-overlap sealing zone.

Detailed Description

In order to make the present utility model better understood by those skilled in the art, the following description of the technical solutions of the present utility model will be made in detail, but not all embodiments of the present utility model are apparent to some embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

Example 1

As shown in fig. 1 to 7, a joint-type aseptic disconnection device includes a first connector 1, and a second connector 2 detachably connected to the first connector 1, the first connector 1 and the second connector 2 being different in structure; the first connector 1 includes a first housing 11, a first valve assembly 3, and an elastic driving member 4, the first valve assembly 3 being formed with a first flow path 81; the second connector 2 includes a second housing 21, and the second housing 21 is formed with a second flow path 82. There is a gap 71 between the first housing 11 and the first valve assembly 3, which gap 71 is adapted to accommodate the resilient driver 4 and to provide space for its axial expansion. In the present embodiment, the axial direction refers to a direction in which the first connector 1 and the second connector 2 are engaged and the flow of the feed liquid is allowed, specifically, a direction in which the O line in fig. 2 extends.

The first connector 1 and the second connector 2 have a communication state and a separation state, and when the first and second connectors are in the communication state, the first and second flow paths 81 and 82 communicate with each other to form a flow path 8, the flow path 8 is supplied with a liquid flow, and the flow path 8 is isolated from the gap 71, and the elastic driving member 4 is in a compressed state.

When the first connector 1 and the second connector 2 are in the separated state, the flow channel 8 is disconnected, thereby preventing the flow of the feed liquid, and the flow channel 8 is isolated from the gap 71, and the elastic driving member 4 is in the extended state. The flow channel 8 is isolated from the gap 71, and the flow channel 8 is a broad concept, and the positions through which the feed liquid passes can be all the flow channels, which include not only the feed liquid in the flow channel but also the feed liquid flowing out of the flow channel, that is, the feed liquid in the first flow channel 81 is isolated from the gap 71, and also the feed liquid outside the flow channel 8 is isolated from the gap 71.

The flow passage 8 may be isolated from the gap 71 by sealing the internal structure of the first valve component 3, and is not particularly limited. Of course, the gap 71 may be provided with the sealing member 710, so that the separation between the flow channel 8 and the gap 71 is achieved, and compared with the sealing separation through the internal structure of the first valve assembly 3, the sealing member 710 is provided at the gap 71, so that the leakage of the feed liquid when the first connector 1 and the second connector 2 are communicated and the contact with the elastic driving member 4 can be effectively avoided, and the leakage of the feed liquid adhered to the two connectors to the housing and the backflow of the feed liquid into the gap 71 to pollute the elastic driving member 4 when the first connector 1 and the second connector 2 are disconnected can be avoided. In this embodiment, the seal 710 is an elastomeric seal.

The gap 71 in the joint type sterile disconnecting device of the utility model is positioned between the first housing 11 and the first valve component 3, namely the elastic driving piece 4 is not in direct contact with feed liquid; since the gap 71 is continuously extending, meaning that the gap 71 is free of a barrier, the elastic drive 4 can expand and compress without a barrier within the gap 71; as the elastic driving member 4 is compressed when the first connector 1 and the second connector 2 are connected, the first flow path 81 and the second flow path 82 between the first connector 1 and the second connector 2 are communicated to form the flow path 8 for the flow of the liquid, and the liquid is separated from the gap 71 by the flow path 8, so that the liquid is not contacted with the elastic driving member 4, and the risk of pollution caused by the contact of the liquid with the elastic driving member 4 is avoided; with the separation between the first connector 1 and the second connector 2, the elastic driving member 4 stretches, the flow channel 8 between the first connector 1 and the second connector 2 is disconnected, and the feed liquid cannot flow between the first flow channel 81 and the second flow channel 82, and at this time, the first flow channel 81 and the elastic driving member 4 in the first connector 1 still keep a state of being isolated from each other, that is, the elastic driving member 4 cannot be in direct contact with the feed liquid, so that the sterility and cleanliness of the feed liquid are maintained. The flow channel 8 is isolated from the gap 71 by the sealing element 710, so that the material liquid is effectively prevented from leaking to be contacted with the elastic driving element 4 when the first connector 1 is communicated with the second connector 2, and the material liquid adhered to the two connectors is prevented from leaking to the shell and flowing back to the gap 71 to pollute the elastic driving element 4 when the first connector 1 is disconnected from the second connector 2.

As shown in fig. 3 and 4, the first valve assembly 3 includes at least a first body 31 and a first valve housing 32, the first body 31 having a first hollow cavity 311 and a first side opening 312 communicating with the first hollow cavity 311; the first valve sleeve 32 is movably sleeved outside the first body 31 so as to move in a gap 71 formed between the first body 31, the first valve sleeve 32 and the first housing 11. The elastic driving member 4 is circumferentially sleeved outside the first main body 31, is located in the gap 71, and two ends of the elastic driving member are respectively abutted against the first main body 31 and the first valve sleeve 32. When the first connector 1 and the second connector 2 are switched from the communicating state to the disconnecting state, the elastic driving member 4 is extended, thereby pushing the first valve sleeve 32 to seal and close the first side opening 312, and the flow passage 8 is disconnected.

Specifically, the seal 710 is positioned between the first housing 11 and the first valve housing 32 to provide a sealed separation of the gap 71. At the same time, an abutting seal is formed between the first housing 11 and the second housing 21 in the axial direction of the disconnect. Specifically, the end surfaces of the first housing 11 and the second housing 21 that are close to each other may abut against each other, and any one of the end surfaces may be provided with a sealing position, so as to ensure sealing performance of the abutting end surfaces.

In order to further secure the connection between the first housing 11 and the second housing 21, a removable stop bar (not shown) may be provided at the junction of the two. The removable limit bar may be an adhesive bar, avoiding that a malfunction leads to a separation of the first connector 1 and the second connector 2.

In order to ensure the stability of the axial movement of the first valve sleeve 32 relative to the first housing 11, in particular, the stability of the axial movement of the first valve sleeve 32 in the first housing 11, as shown in fig. 4 to 7, a sliding groove 113 and a sliding block 322 are provided between the inner wall of the first housing 11 and the outer wall of the first valve sleeve 32, in this embodiment, the sliding groove 113 is provided on the inner wall of the first housing 11, the sliding block 322 is provided on the outer wall of the first valve sleeve 32, the sliding block 322 protrudes outwards in the radial direction of the first valve sleeve 32, and is slidingly connected in the sliding groove 113 in the axial direction, thereby limiting the circumferential rotation of the first valve sleeve 32 and the first housing 11, and realizing the rotation-stopping fit of the first valve sleeve 32 and the first housing 11. More specifically, the seal 710 is located between the first housing 11 and the first valve housing 32, outside of the corresponding chute 113.

At the same time as the sliding blocks 322 are arranged, the outer wall of the first valve sleeve 32 can also form an annular convex edge 323 which connects the sliding blocks 322 into a whole, and the annular convex edge 323 can also abut against the elastic driving piece 4. Specifically, a plurality of sliding grooves 113 are arranged on the inner wall of the first housing 11 at intervals, and the annular convex edges 323 connect the sliding blocks 322 which are arranged at intervals and are matched with the sliding grooves 113 in number into a whole.

Example two

The present embodiment is different from the first embodiment in that, as shown in fig. 8 and 9, on the basis of the structure of the first embodiment, a connecting member 9 is integrally connected to the first valve housing 32, and extends in the axial direction toward the second connector 2, and the end surface of the connecting member 9 abuts against the end surface of the second connector 2.

Other structures are the same as those of the first embodiment, and will not be described again.

Example III

As shown in fig. 10, in the present embodiment, based on the structure of the second embodiment, the second connector 2 includes, in addition to the second housing 21, a second body 51 and a second valve sleeve 52 sleeved outside the second body 51, the second body 51 having a second hollow cavity 511, a second side opening 512 communicating with the second hollow cavity 511, and a second sealing end 513 sealing one end of the second hollow cavity 511; the second valve housing 52 is movably sleeved outside the second body 51 so as to move in a second gap 72 formed between the second body 51, the second valve housing 52 and the second housing 21. The second elastic driving member 6 is circumferentially sleeved outside the second main body 51, is located in the second gap 72, extends along the axial direction, and two ends are respectively abutted against the second main body 51 and the second valve sleeve 52.

Accordingly, the first body 31 has a first sealing end 313 that seals one end of the first hollow cavity 311.

When the first connector 1 and the second connector 2 are in the communication state, the first housing 11 and the second housing 21 abut, the ends of the first valve sleeve 32 and the second valve sleeve 52 which are close to each other abut against each other and are in the sealing connection state in the axial direction, the flow passage 8 is in the sealed state, and at the same time, the elastic driving member 4 and the second elastic driving member 6 are compressed by being pushed by the first valve sleeve 32 and the second valve sleeve 52. The first valve sleeve 32 is separated from the first side opening 312, and the second valve sleeve 52 is separated from the second side opening 512, i.e. the first side opening 312 is opened, and the second side opening 512 is opened, so that the first hollow cavity 311 and the second hollow cavity 511 are mutually communicated through the first side opening 312 and the second side opening 512, the communication between the first flow path 81 and the second flow path 82 forms a flow channel 8 for feeding liquid to flow, the liquid enters the first hollow cavity 311 of the first connector 1, flows out from the first side opening 312, flows to the second side opening 512, then enters the second hollow cavity 511, and finally flows out of the second connector 2, i.e. the liquid flows along the direction indicated by the arrow in fig. 4. The whole runner 8 is in a state of being isolated from the gap 71 and the second gap 72, so that the feed liquid is prevented from contacting the elastic driving piece 4 and the second elastic driving piece 6, and the sterility and the cleanliness of the feed liquid are maintained.

At this time, in the present embodiment, the first sealing end 313 and the second sealing end 513 are in point contact, and when the flow path between the first connector 1 and the second connector 2 is communicated, the feed liquid is directly contacted with the first sealing end 313 and the second sealing end 513 in the process of flowing to the second side opening 512 through the first side opening 313, so that the sides of the first sealing end 313 and the second sealing end 513 close to each other are attracted together by the action of the surface tension of the liquid, and when the flow path between the first connector 1 and the second connector 2 is disconnected, the first sealing end 313 and the second sealing end 513 are difficult to be quickly separated in a short time; when the sides of the first sealing end 313 and the second sealing end 513 close to each other are in point contact, the contact area between the first sealing end 313 and the second sealing end 513 is minimized, so that the liquid can be rapidly separated in a short time, the liquid can be prevented from being exposed to be polluted, or the liquid can be prevented from being excessively attached to the first sealing end 313 and the second sealing end 513 to pollute the environment, etc.

When the first connector 1 and the second connector 2 are switched from the connected state to the disconnected state, at this time, as the first connector 1 and the second connector 2 are separated in the direction tending to move away from each other, the abutment between the first valve sleeve 32 and the second valve sleeve 52 is cancelled and the direction tending to move closer to each other, the compression between the elastic driving member 4 and the second elastic driving member 6 is eliminated, the elastic driving member 4 is stretched to push the first valve sleeve 32 to seal-close the first side opening 312 with its natural state restored, the second elastic driving member 6 is stretched to push the second valve sleeve 52 to seal-close the second side opening 512 with its natural state restored, and the flow passage 8 is opened. At this time, the flow path of the first valve assembly 3 is still kept isolated from the first gap 71, and the flow path of the second connector 2 is still kept isolated from the second gap 72, that is, the feed liquid is not in contact with the elastic driving member 4 and the second elastic driving member 6, so that the sterility and cleanliness of the feed liquid are maintained.

The first valve sleeve 32 is further provided with a connecting piece 9, when the first connector 1 and the second connector 2 are in a communicating state, the first sealing end 313 and the second sealing end 513 are positioned in the connecting piece 9, and the connecting piece 9 is positioned in the first housing 11 and the second housing 21; the connector 9 is located outside the first housing 11 and the second housing 21 for receiving the feed liquid when the first connector 1 and the second connector 2 are in the disconnected state.

Specifically, in the present embodiment, the connecting member 9 is integrally connected to the first valve sleeve 32, which extends in the axial direction toward the direction in which the second valve sleeve 52 is located, and the end surface of the connecting member 9 abuts against the end surface of the second valve sleeve 52. Of course, in other embodiments, the connecting member 9 may be integrally connected to the second valve sleeve 52 and axially extend toward the first valve sleeve 32, and the end surface of the connecting member 9 abuts against the end surface of the first valve sleeve 32.

In order to further increase the sealing properties, there are now also seals 710 between the connection piece 9 and the second valve sleeve 52, in other words the number of seals 710 is three, one set of seals at the gap 71, another set of seals between the connection piece 9 and the second valve sleeve 52, and one set of seals between the second valve sleeve 52 and the second housing 21.

Of course, in other embodiments, the connecting member 9 may be divided into two parts, and the two parts are respectively connected to the ends of the first valve sleeve 32 and the second valve sleeve 52 that are close to each other. At this time, the first connector 1 and the second connector 2 have the same structure, which is convenient for processing and manufacturing. At this time, a seal 710 is further provided between the portion of the connector 9 and the first valve sleeve 32, and a seal 710 is also provided between the portion of the connector 9 and the second valve sleeve 52.

Alternatively, in other embodiments, the connector 9 is provided separate from the first valve sleeve 32 and the second valve sleeve 52, i.e. the connector 9 is not connected to either the first valve sleeve 32 or the second valve sleeve 52, which is a separate component.

When the connecting piece 9 is assembled and connected with the first valve sleeve 32 and the second valve sleeve 52, the first convex end surface of the first valve sleeve 32 abuts against one end of the limiting convex rib, the second convex end surface of the second valve sleeve 52 abuts against the other end of the limiting convex rib, namely, one ends, close to each other, of the first valve sleeve 32 and the second valve sleeve 52 abut against two ends of the limiting convex rib respectively, so that the elastic driving piece 4 and the second elastic driving piece 6 are pressed to be in a compressed state respectively.

Example IV

As shown in fig. 11 to 14, in order to ensure a sealing engagement between the connector 9 and the first valve assembly 3 in the connected state of the first connector 1 and the second connector 2 on the basis of the structure in which the connector 9 is integrally connected to the first valve housing 32, at least part of the connector 9 and the second valve housing 52 are overlapped in the axial direction, thereby forming an overlapped sealing area 91 surrounding in the axial direction; when the flow paths between the first connector 1 and the second connector 2 are communicated, the ends, close to each other, of the connecting piece 9 and the second valve sleeve 52 are abutted tightly and sealed, at the moment, the ends, close to each other, of the connecting piece 9 and the second valve sleeve 52 are mutually overlapped to form an overlapped sealing area 91 encircling along the axis direction of the overlapped sealing area 91, and the overlapped sealing area 91 is arranged for a complete circle around the axis, so that the sealing effect is good, and leakage of the first valve sleeve 32 and the second valve sleeve 52 due to the pressure of feed liquid at the connecting position is avoided. Of course, in other embodiments, the overlapping sealing area 91 may be provided with a multi-turn structure, which has high structural strength and better sealing effect.

In this embodiment, the structures of the first connector 1 and the second connector 2 are substantially the same except for the portion of the connecting member 9, when the first connector 1 and the second connector 2 are in the communicating state, the flow channel 8 is simultaneously isolated from the gap 71 and the second gap 72, the elastic driving member 4 and the second elastic driving member 6 are both in the compressed state, and the elastic driving member 4 and the second elastic driving member 6 are not in direct contact with the feed liquid, so that the risk of contamination of the feed liquid contacting the elastic driving member is avoided.

When the first connector 1 and the second connector 2 are in the separated state, the flow channel 8 is disconnected, so that the flow of the feed liquid is prevented, the first flow channel 81 is isolated from the first gap 71, the second flow channel 82 is isolated from the second gap 72, the elastic driving piece 4 and the second elastic driving piece 6 are in the stretched state, and the elastic driving piece 4 and the second elastic driving piece 6 are not in direct contact with the feed liquid, so that the risk of contamination of the feed liquid contacting the elastic driving piece is avoided.

In order to reduce the overall size of the decoupler, under the condition of ensuring that an effective overlapped sealing area 91 is formed between the first valve sleeve 32 and the connecting piece 9, when the first valve assembly 3 and the second valve sleeve 52 are pushed mutually, the first valve sleeve 32 can move smoothly along the axial direction, a part of the first valve sleeve 32 protrudes towards the central axis direction of the first main body 31 to form a first convex position 321, a first concave position 314 is formed at the position of the first main body 31 corresponding to the first side opening 312 along the axial direction, and the first convex position 321 can move axially in the first concave position 314.

The first sealing end 313 has a first locking portion 3131 at its outer periphery, and when the first valve sleeve 32 seals the first side opening 312, the first protruding portion 321 is in sealing engagement with the first locking portion 3131 to form a seal.

Similarly, a portion of the second valve sleeve 52 protrudes toward the central axis of the second body 51 to form a second convex portion 521, and a second concave portion 514 is formed in the second body 51 corresponding to the second side opening 512 in the axial direction, and the second convex portion 521 can axially move in the second concave portion 514.

The second sealing end 513 has a second detent 5131 on its outer periphery, and the second tab 521 sealingly engages the second detent 5131 to form a seal when the second valve sleeve 52 seals the second side opening 512.

Of course, in order to further increase the sealing performance, a seal 710 may also be provided between the first housing 11 and the first valve sleeve 32. Alternatively, the sealing member 710 may be disposed between the connector 9 and the first housing 11, and the specific location is not limited.

The foregoing detailed description is provided to illustrate the present utility model and not to limit the utility model, and any modifications and changes made to the present utility model within the spirit of the present utility model and the scope of the appended claims fall within the scope of the present utility model.

Claims (10)

1. A splice-type sterile disconnect device, comprising:

a first connector including a first housing, a first valve assembly, and an elastic driving member, the first valve assembly forming a first flow path;

a second connector detachably connected to the first connector, including a second housing formed with a second flow path;

it is characterized in that the method comprises the steps of,

a gap is formed between the first housing and the first valve assembly to accommodate the elastic driving member and provide an axial telescopic space thereof;

the first connector and the second connector have a communicating state and a separating state, when the first connector and the second connector are in the communicating state, a flow passage for flowing feed liquid is formed by communicating the first flow passage and the second flow passage, the flow passage is isolated from the gap, and the elastic driving piece is in a compressed state; when the elastic driving piece is in a separation state, the flow channel is disconnected to prevent the flow of feed liquid, the flow channel is isolated from the gap, and the elastic driving piece is in an extension state; and a sealing element is arranged at the gap to isolate the flow passage from the gap.

2. The terminal-type sterile disconnect device of claim 1, wherein: the first valve assembly at least comprises a first main body and a first valve sleeve, wherein the first main body is provided with a first hollow cavity and a first side opening communicated with the first hollow cavity, and the first valve sleeve is movably sleeved on the outer side of the first main body so as to form the gap among the first main body, the first valve sleeve and the first shell; when the first connector and the second connector are switched from the communicating state to the separating state, the elastic driving piece stretches to push the first valve sleeve to seal and block the first side opening, and the flow channel is disconnected.

3. The terminal-type sterile disconnect device of claim 2, wherein: the seal is located between the first housing and the first valve housing.

4. A splice-and-break aseptic device as claimed in claim 3 wherein: the sliding block is connected in the sliding groove in an axial sliding manner so as to limit the first valve sleeve and the first housing to circumferentially rotate, and the sealing piece is positioned between the first housing and the first valve sleeve and corresponds to the outer portion of the sliding groove.

5. The terminal-type sterile disconnect device of claim 2, wherein: the first main body is provided with a first sealing end for sealing one end of the first hollow cavity; the second connector further comprises a second main body and a second valve sleeve sleeved outside the second main body, the second main body is provided with a second hollow cavity, a second side opening communicated with the second hollow cavity and a second sealing end used for sealing one end of the second hollow cavity, a second gap is formed among the second main body, the second valve sleeve and the second housing, and a second elastic driving piece is accommodated in the second gap and provides an axially telescopic space for the second elastic driving piece.

6. The terminal-type sterile disconnect device of claim 5, wherein: the first valve sleeve is provided with a connecting piece; when the first connector and the second connector are in a communicating state, the first sealing end and the second sealing end are enclosed in the connecting piece, and the connecting piece is positioned in the first shell and the second shell; when the first connector and the second connector are in a disconnected state, the connecting piece is positioned outside the first shell and the second shell and is used for receiving feed liquid;

the connecting piece is integrally connected with the first valve sleeve or the second valve sleeve; or the connecting piece is divided into two parts and is respectively connected with one end of the first valve sleeve and one end of the second valve sleeve, which are close to each other; alternatively, the connector is provided separately from the first and second valve housings.

7. The splice-and-aseptic disconnection apparatus of claim 6, wherein: a seal is provided between the connector and the first housing and/or the second housing.

8. The splice-and-aseptic disconnection apparatus of claim 6, wherein: the connector axially overlaps at least a portion of the first valve sleeve or/and the second valve sleeve to form an overlapping seal disposed about the axis and extending in the axial direction.

9. A splice-and-break aseptic device according to any of claims 1-8, characterized in that: the seal is an elastomeric seal.

10. The terminal-type sterile disconnect device of claim 9, wherein: an abutting seal is formed between the second housing and the first housing along the axial direction of the joint type sterile disconnection device.