• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:

    公开号:FR3017687A1
    申请号:FR1451184
    申请日:2014-02-14
    公开日:2015-08-21
    发明作者:Florian Blake；Jeremy Gibelin
    申请人:Sartorius Stedim FMT SAS；
    IPC主号:
    专利说明:

    [0001] The invention relates to fluidic connectors, in particular for connections or fluid connections for connecting a female connector to a male connector, for connecting a fluid line to another conduit or container, in the field of biopharmaceutical applications.
    [0002] More specifically, in the field of biopharmaceutics, flexible pipes or tubes and containers or containers are used, which serve to transport and contain various biopharmaceutical substances, most often with the necessary precautions of asepsis.
    [0003] In the case of use of certain substances, it may be necessary to guarantee sufficient sterility conditions after the connection of the various components (pipes and / or containers) has been made. To this end, it is convenient to use male-female connections that can not be dismounted after mating, thereby ensuring that undesired decoupling can not disrupt the sterility conditions. Moreover, this kind of connection must be obtained by a simple and fast coupling. In practice, preference is given to solutions where the coupling is achieved by an axial translational movement without rotation for the insertion of the male connector into the female connector. According to the purpose sought here, the coupling, once obtained, must be final, the latter point effectively excluding all unlockable connector solutions used in the biopharmaceutical field.
    [0004] It is known, for example from EP-A-0566889, to use an intermediate locking piece radially interposed between the male end and the female connector, this intermediate piece having the shape of a collar. It is also known, for example from document US5573279, to arrange flexible plastic tabs inside the female connector, integrally formed with the latter, said flexible tabs being bent behind a bead of the male end for prevent any withdrawal. However, the known solutions have various drawbacks, in particular the complexity of the shapes of the elements which contribute to the locking of the male endpiece in the female connector, the poor radial and / or axial compactness of these locking elements. There is therefore the need to propose an improvement intended to overcome, at least in part, the aforementioned disadvantage of the known prior art. Hereinafter, a description of the invention as characterized in the claims. According to a first aspect, the invention relates to a female connector, for fluid connection, adapted and intended to receive a male connector having an outer retaining rim retaining, the female connector comprising a body with an X-axis bore, and a slider housing (for example a slot) extending generally in a transverse plane YZ perpendicular to the X axis, the housing comprising two parallel lateral grooves and the housing being opening at at least one of its ends in the direction Z slide, the female connector comprising a locking deformable ring, distinct from the body and reported, adapted to be inserted into the housing and to lock the male connector in the coupling position, the locking ring comprising two concave first arcuate portions seen 20 of the X axis, diametrically opposed, and two second arcuate portions, with inverted curvature, namely convex seen from the X axis, diametrically opposed and each interposed between two first arcuate portions, the second arcuate portions being able to flex outwardly upon insertion of the male connector and able to abut on the outer annular retaining rim to prevent the removal of the male connector; whereby, after locking the male connector in the female connector, a final locking is achieved, it is no longer possible to unlock the connection by manipulation or pressure on the locking ring. Thanks to these arrangements, a locking ring of very small size in the axial direction, and of very good compactness in the radial direction, is obtained. In addition, the shape of the locking ring is particularly simple, which allows to obtain a very advantageous cost. It should be noted that the connection is indémontable and will obtain a visible proof if the locking has been violated, for example by the materialization of the deterioration of the locking ring.
    [0005] According to one embodiment, the first arcuate portions are arc-shaped centered on the X axis, with a first radius of curvature R1 between 100% and 200% of the radius of the male connector, the second arcuate portions are shaped arc with a second radius of curvature R2 between 70% and 130% of the first radius of curvature R1. With this, it is ensured that the second arcuate portions tend to tighten towards the axis when the first arcuate portions are pressed. In one embodiment, the housing and the deformable ring are dissymmetrical relative to the transverse plane YZ, with a bevel shape (or chamfer) of a front side of the deformable ring; so that the spacing of the second arcuate portions during the insertion of the male connector is thus promoted by ramping effect, and that the deformable ring can be inserted only in one of the two possible directions. 'ie with a front / back face coding. According to one embodiment, the locking ring comprises at least one lug projecting in the axial direction, adapted to cooperate with at least one notch arranged in the front face of the slot forming the housing; Thus, a simple and visual solution is proposed which allows an adequate manual or automated mounting of the ring in the right direction. According to one embodiment, the deformable ring has projections for holding the ring in the housing in the direction of the slide Z, with corresponding recessed shapes in the grooves of the housing; whereby the ring is held in the housing after insertion into a substantially centered position, possibly with a functional clearance. In one embodiment, the housing opens at both ends along Z and is symmetrical about the XY plane; whereby the deformable ring can be inserted indifferently from each of the sides of the slider housing. According to one embodiment, alternative to the asymmetry mentioned above, the housing is symmetrical with respect to the plane YZ, so that one can insert the deformable ring indifferently in the two possible directions. With this, it is easier to envisage automation of the assembly. In one embodiment, the ring has a triple symmetry with respect to the planes XZ, XY and YZ; so that no risk of error exists when mounting the deformable ring inside the housing. According to one embodiment, the body of the female connector is made of a first biocompatible plastic material and the deformable ring is made in a second plastic material; so that one can optimize the respective materials of the female connector and the locking ring; in particular, it is possible to choose as a second plastic material a material with optimized mechanical performance, concerning a stiffness versus elasticity compromise; In addition, the respective optimization of the two materials makes it possible to manufacture these components with particularly advantageous costs. In one embodiment, the second arcuate portions are inaccessible when the deformable ring is in position in the slider housing and the first arcuate portions remain accessible; thus, one can not maneuver the 20 second arcuate portions and a radial pressure exerted inward on the first arcuate portions tends to accentuate the curvature of the second arcuate portions and therefore tends to enhance the locking; so that it is impossible to unlock the connection, even unintentionally or in the event of a fall or shock. In one embodiment, when the deformable ring is in position in the female connector, the first arcuate portions do not protrude from the surface of the female connector body, and are preferably flush; so that one can exert a pressure in the direction of the axis on the first arcuate portions but can not manually exert traction in the opposite direction of the axis; whereby this provision contributes to guarantee the non-unlockable nature of the connection. According to a second aspect, the subject of the invention is a deformable plastic molded ring suitable for use as a locking ring 35 in a female connector as described above, the deformable ring comprising two first concave arcuate portions seen from the X axis, diametrically opposed, and two second arcuate portions, inverted curvature, namely convex seen from the X axis, diametrically opposed and each interposed between two first arcuate portions.
    [0006] The figures of the drawings are now briefly described. Figure 1 is a perspective view of the connection device according to the present invention. FIG. 2 is a view in axial section of the connection device of FIG. 1, in the coupled position, along the section line II-II visible in FIG. 5. FIG. 3 is a perspective view of the locking ring . Figure 4 is a perspective view of a cross section of the connection device. Figure 5 shows a cross section of the connection device. Figure 6 shows a top view of the female connector without the locking ring. FIGS. 7A and 7B show two variants of the profile of the male end with a locking ring respectively symmetrical and asymmetrical with respect to the plane YZ. Figures 8A, 8B and 8C illustrate another alternative with a detriment position page affecting the locking ring and the housing in the female connector. Hereinafter a detailed discussion of several embodiments of the invention with examples and reference to the drawings. In the illustrated example, it is a matter of connecting a female connector 1 to a male connector 2, by a coupling movement during which the male connector is inserted into the female connector in an axial direction X. For each of As used herein, the term "front" refers to the nearest portion of the complementary opposite connector, and the term "back" refers to the portion furthest from the opposite connector. The female connector 1 comprises in its rear portion a tubular nozzle 17 intended to receive a flexible tube (not shown) and in its front portion a coupling interface with the male connector 2, said coupling interface will be described below. Similarly, the male connector 2 comprises in its rear portion a tubular nozzle 27 for receiving a flexible tube and in its front portion a coupling interface with the female connector, which will be discussed later. It should be noted here that the female connector and / or the male connector could have in their rear portions, in place of a tube receiving tip as shown, a connecting flange to a container such as for example a flexible bag or rigid or a filter.
    [0007] Each of the tubular ends 17,27 is of revolution about the X axis, and they each comprise one or more notches 19,29 of external retention to hang the flexible tube, and a stop collar 18,28 on which can come abut the flexible tube during its insertion on the tip. As known per se, a clamp may be added around the flexible tube and the endpiece. The male connector 2 comprises an axial passage 26 of revolution about the X axis, which allows the passage of the fluid transported through the fluid connection. Starting from its front end portion, the male connector firstly comprises an inlet chamfer 25, then an annular groove 21 intended to receive a conventional O-ring 9, then a first intermediate portion 20 equipped with longitudinal ribs 73, then a frustoconical portion 23 which flares outwardly and rearwardly of the male connector. Still moving towards the rear of the connector, the frustoconical portion 23 is extended by an annular flange 24, which forms a shoulder intended to bear on another surface in return and to prevent the withdrawal of the male connector as it will be seen later. . Behind the anti-withdrawal ring flange 24, the male connector comprises a second intermediate portion 22 with a ring 72 equipped with four small reinforcements 74, said ring with these reinforcements acting as gripping means for pushing the male connector towards the female connector and also serving as an axial stop for the insertion movement. Behind the ring 72, there is the collar 28 and the tubular nozzle itself 27 already commented. The female connector 1 comprises an axial passage 15 of revolution about the axis X, which allows the passage of the fluid transported through the fluidic connection. Starting from its rear end portion, the female connector 1 comprises the tubular nozzle 17 already commented, then a main body 10 intended to receive the front portion of the male connector, with a bore of diameter slightly greater than the outside diameter of the front portion of the male end 2, so as to allow the insertion of the front portion of the male connector and so as to exert a radial pressure on the O-ring 9 to ensure the sealing function. Vis-à-vis the frustoconical portion 23, the body 10 has a dimension o interior which is increasing to the location of a housing 4 for the locking ring 3 which will be discussed later . Indeed, in the front portion of the female connector is arranged a slider housing 4 extending in a transverse plane YZ perpendicular to the axis X. In this case, the slider housing is here as a transverse slot. In addition, in the illustrated example, this slot opens on both sides 40,46 in the transverse direction Z which allows the insertion of a locking ring. In the illustrated example, the housing 4 comprises a first groove 41 and a groove second 42 which face each other and are arranged symmetrically with respect to the XZ plane. Finally, the body 10 of the female connector comprises a front ring 11 which forms the front end and on which will abut at the end of insertion movement the ring 72 of the male connector. The body 10 of the female connector also has behind the housing a rear ring 12, and consequently the housing 4 is interposed 25 between the front ring 11 and the rear ring 12. It should be noted here that it is not strictly necessary that the slot 4 is open on both sides, in effect alternatively not shown, one of the sides could be at least partially closed which would form a bottom for the housing 4 while 4 the opposite side would be the mouthpiece by which it It is necessary to insert the locking ring 3. The locking ring 3 already mentioned is intended to be inserted in the above-mentioned housing 4 of the body of the female connector. The locking ring 35 is formed as a deformable closed ring, that is to say in particular that it can be deformed radially outwardly during the insertion movement of the male connector in the female connector. More precisely, the locking ring comprises two diametrically opposed first arcuate portions 31, concave seen from the X axis, and two second arcuate inverted curvature portions 32, namely convex, seen from the X axis, diametrically opposed and each interposed between two first arcuate portions. In other words, if one traverses the ring in the circumferential direction, there is a first arcuate portion, then a second inverted curved arcuate portion, then another arcuate first portion and finally another second arcuate inverted curved portion. It should be noted that the section of each of the arcuate portions remains relatively constant, and that the section of the ring does not evolve substantially when passing from a first arcuate section to a second arcuate section or vice versa.
    [0008] The first arcuate portions 31 are concave seen from the X axis, that is to say that their curvature is directed towards the inside of the ring while second arcuate portions 32 are convex as seen from the axis X. that is, their curvature is directed towards the outside of the ring.
    [0009] Advantageously, the first arcuate portions 31 are here arc-shaped centered on the X axis, with a first radius of curvature R1 (FIG. 3) lying between 100% and 200% of the radius RO of the male connector, the second portions arches 32 are arc-shaped with a second radius of curvature R2 between 70% and 130% of the first radius of curvature R1. The second arcuate portions 32 are able to bend outwards during the insertion of the male connector, particularly when the frustoconical shape 23 comes to rest on the ring. After complete insertion of the male connector, the outer annular flange 24 has passed the ring, and the ring is returned to its rest position and then abuts on the outer annular retaining rim 24 to prevent removal of the male connector. When the locking ring 3 is at rest, the distance D3 (FIGS. 4 and 5) between the two second arcuate portions is slightly smaller than the diameter D4 of the male connector of the second intermediate portion 22 behind the annular flange 24. It should be noted that that the second arcuate portions 32 are inaccessible from the outside when the deformable ring is in position in the housing 4 and only the first arcuate portions 31 remain accessible to some extent; but as shown in Figure 5, an inward radial pressure tends to accentuate the curvature of the second arcuate portions and therefore tends to enhance the locking; so that it is impossible to unlock the connection, even inadvertently or in the event of a fall or shock of the connector against an object. Advantageously, when the deformable ring 3 is in position in the housing, the first arcuate portions 31 do not protrude from the surface of the body of the female connector, and therefore it is not possible to catch them with the fingers to try to unlock the connection. Note that in the example shown in Figures 1 and 4, the first arcuate portions 31 are flush with the surface of both the rear ring 12 and the front ring 11. There is also no play in the axial direction that would insert an object to try to spread the first radial portions to try to violate the locking of the connection. Consequently, the inaccessibility of the second arcuate portions 32 as well as the impossibility of exerting traction on the first arcuate portions 31 lead to the result that it is not possible by a maneuver of a user to be able to unlock the connection. Only substantial deterioration of the locking ring 3 or the body 10 of the female connector can lead to such an eventuality; but then there would be visible evidence on the pieces. Moreover, the remarkable compactness in the radial direction of this solution can be observed, in fact the outermost diameter of the locking ring is not greater than 125% of the diameter D4, that is to say is not not greater than 250% of the RO radius of the forward portion of the male connector. A small footprint of the solution in the axial direction is also obtained because the thickness of the deformable ring 3 along X is several times smaller than the effective diameter of the axial passage of the connection. We can note the advantageous symmetrical arrangement of the deformable ring 3, it is indeed symmetrical with respect to the XZ plane and the XY plane.
    [0010] Similarly, it should be noted that the grooves 41 and 42 could be partially perforated, it is not necessary that they are completely closed, it is sufficient that they make difficult access to the second arcuate portions 32.
    [0011] Prior to the insertion of the male connector, the locking ring 3 can be held in a so-called waiting position inside the housing by various means. In the illustrated example, the locking ring is held in the housing by projecting shapes 34, arranged substantially at the junctions between the first arcuate portions and the second arcuate portions, thereby providing four projecting shapes 34, which we could also call hooks, beaks or claws. Said projecting shapes 34 extend outwardly generally in the Y direction. Corresponding hollow shapes 43, 44 are provided opposite each other in the grooves 41, 42, these recessed shapes being intended to receive the projecting shapes of the locking ring when it comes to its position substantially centered on the X axis. Advantageously, the flexibility properties of the ring are used not only for coupling the male connector in the female connector. but also for the prior insertion of the locking ring 3 into the slot 4 along the Z direction. More specifically, the distance along the Y between the ends of the projecting shapes 34 is slightly greater than the distance D5 which separates the bottom of the grooves 41, 42. Thus, during the insertion, the projecting shapes 34 are slightly compressed inwards to slide along the inside of each of the grooves 41, 42, and even to the rest position as soon as the protruding shapes 34 face the abovementioned recessed shapes 43,44. A precise positioning of the ring is not necessarily required, one can have a functional game provided that the ring is approximately centered on the X axis. The female connector 1 and the male connector 2 can be obtained by molding. a first plastic material, in particular organic plastics compatible with the various biopharmaceutical substances referred to, for example polypropylene, polyethylene, polycarbonate, polysulfone, polyvinylidene chloride, polyethylenimine. Polyethylene or polypropylene will preferably be selected.
    [0012] The deformable locking ring 3 can also be made of the same material, for example polybutylene terephthalate, polypropylene, polyethylene, polycarbonate or polyoxymethylene; alternatively, and advantageously in some cases, it will be possible for the deformable ring 3 to choose a second plastic material different from the connectors, typically polybutylene terephthalate or polycarbonate, with more specific mechanical and elastic properties, because in effect the locking ring is never in contact with the substances transported in the pipe object of the connection. We can optimize the compromise of the stiffness with respect to the elasticity of the second material. It will also be possible to take into account the evolution of the qualities of the material as a function of natural aging or caused by light or other radiations, or other physico-chemical aggressions. As illustrated in FIG. 7A, in the case where the male connector 2 has low slope entry ramps 25, 23, it is possible to use a section of second arcuate portion 32 symmetrical with respect to the YZ plane. In this case, the locking ring can be formed with a triple symmetry, namely a triple symmetry with respect to the planes XZ, XY and YZ, so that no risk of error exists when mounting the In addition, this arrangement of triple symmetry can facilitate the automation of the insertion of the ring into a female connector, the locking rings being able to be routed in single file by means of FIG. a relatively simple vibrating pot, to a manipulator robot. As illustrated in FIG. 7B, to facilitate the deflection of the deformable ring at the moment of insertion, for example in the case where the entry ramps 25, 23 are more pronounced, a bevelled face 36 is provided on the face. before the ring which reduces the insertion forces F and facilitate the spacing of the second arcuate portions 32 of the locking ring. On the other hand, on the opposite side of the section of the ring (rear face 37), a straight profile is retained so that the outer rim 24 of the male connector is flat on the rear face 37 of the ring. Thus, traction on the male end after coupling will not tend to spread the second arcuate portions 32.
    [0013] It should be noted that this "flat" scope also prevails in the previous case of Figure 7A. Note a functional clearance E between the male end and the inner diameter 11b 5 which ensures that the male end including the shoulder 24 passes beyond the front ring 11 of the slot of the female connector 1. According to an optional feature, illustrated in FIGS. 8A, 8B, 8C, it is possible to provide a page detriment function to guarantee the mounting direction of the unlocking ring inside the housing 4. In particular, when using an asymmetrical ring section profile (Fig 7B) in the second arcuate portions 32, it must be ensured that the beveled portion 36 is placed on the insertion side of the male connector. For this purpose, two lugs 6, 6A are arranged in the middle portions of the first arcuate portions 31 and extend (from material) in the direction of the X axis. Two notches 16, 16A formed complementary to the lugs 6 , 6A above, are formed in the median plane XZ of the slot (on the front wall of the slot), one at the top and one at the bottom. Thus, if one can not insert the deformable ring upside down with the beveled portion directed to the wrong side, because the lug 6 would abut on the rear ring 12 devoid of notch. It should be noted here that if the housing allows the insertion of the ring 3 only one side opening, for example from above, a single slot 16 would be necessary.
    [0014] Note that in the illustrated example, the male connector can rotate inside the female connector around X, there is no position in particular orientation to insert the male connector into the female connector. However, it is not excluded to provide an anti-rotation device which can for example be arranged between the small reinforcements 74 of the ring 72 of the male connector and the front ring 11 of the female connector. Advantageously according to the invention, the particular shape of the locking ring including the second arcuate portions, has an advantage concerning the robustness of the locking; indeed in case of unintentional shock, or in case of attempted fraudulent operation of the connection, the second arcuate portions tend to move inward and therefore enhance the locking effect instead of reducing it. Therefore, only a physical deterioration of the locking ring (which would then be visible) could lead to an unlocking of the connection.
    权利要求:
    Claims (12)
    [0001]
    REVENDICATIONS1. A female connector (1) for fluidic connection, adapted and adapted to receive a male connector (2) having an outer retaining annular flange (24), the female connector comprising a body (10) with an X-axis bore, and a slide housing (4) extending generally in a transverse plane YZ perpendicular to the axis X, the housing (4) comprising two parallel lateral grooves (41, 42) and the housing being opening at at least one of its ends in the direction of the slide Z, the female connector comprising a deformable lock ring (3) separate from the body, adapted to be inserted into the housing and adapted to lock the male connector in the coupling position, the locking ring comprising two first arcuate portions (31), concave seen from the X axis, diametrically opposed, and two second arcuate portions (32), with inverted curvature, namely convex seen from the X axis, diametrically opposite and c hacune interposed between two first arcuate portions, the second arcuate portions being able to flex outwardly upon insertion of the male connector and able to abut on the outer annular retaining lip to prevent withdrawal of the male connector, whereby after locking the male connector in the female connector, definitive locking is obtained.
    [0002]
    2. A connector according to claim 1, wherein the first arcuate portions (31) are arc-shaped centered on the X-axis, with a first radius of curvature (R1) between 100% and 200% of the radius ( RO) of the male connector, the second arcuate portions (32) are arc-shaped with a second radius of curvature (R2) between 70% and 130% of the first radius of curvature (R1).
    [0003]
    3. Connector according to one of claims 1-2, wherein the housing (4) and the deformable ring (3) are asymmetrical relative to the transverse plane YZ, with a bevel shape (36) of a front side deformable ring.
    [0004]
    4. Connector according to claim 3, wherein the locking ring comprises at least one lug (6,6A) projecting in the axial direction, adapted to cooperate with at least one notch (16) arranged in the front face of the slot forming the housing .
    [0005]
    5. Connector according to one of claims 1-4, wherein the deformable ring has projections (34) for holding the ring in the housing in the direction of the slide Z, with recessed shapes (43,44). corresponding in the grooves of the housing.
    [0006]
    6. Connector according to one of claims 1-5, wherein the housing opens at both ends along Z and is symmetrical about the XY plane, the deformable ring can be inserted indifferently from each of the sides of the slider housing.
    [0007]
    7. A connector according to claim 6, wherein the housing is symmetrical with respect to the YZ plane so that the deformable ring can be inserted indifferently in both possible directions.
    [0008]
    8. The connector of claim 7, wherein the deformable ring (3) has a triple symmetry, relative to the planes XZ, XY and YZ. 20
    [0009]
    9. Connector according to one of claims 1-8, wherein the body of the female connector (1) is made of a first biocompatible plastic material and the deformable ring (3) is made of a second plastic material. 25
    [0010]
    10. Connector according to one of claims 1-9, wherein the second arcuate portions (32) are inaccessible when the deformable ring is in position in the slide housing and only the first arcuate portions (31) remain accessible. 30
    [0011]
    11. Connector according to one of claims 1-9, wherein when the deformable ring is in position in the female connector, the first arcuate portions (31) do not protrude from the surface of the body (10) of the female connector, and are preferably flush.
    [0012]
    12. deformable ring (3) molded plastic, suitable for use as a locking ring in a female connector (1) according to one of the preceding claims, the deformable ring comprising two first arcuate portions (31) concave seen from the axis, diametrically opposed, and two second arcuate portions (32), inverted curvature, ie convex axial view, diametrically opposed and each interposed between two first arcuate portions.
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    同族专利:
    公开号 | 公开日
    EP3105460B1|2019-01-02|
    CN106029041B|2019-03-22|
    CN106029041A|2016-10-12|
    US10139025B2|2018-11-27|
    WO2015121581A1|2015-08-20|
    EP3105460A1|2016-12-21|
    US20170051859A1|2017-02-23|
    FR3017687B1|2016-09-09|
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    CN112983963A|2019-12-13|2021-06-18|杨东佐|Rotation-stopping and separation-stopping pad, fastening connection mechanism and fastening method|
    法律状态:
    2016-01-08| PLFP| Fee payment|Year of fee payment: 3 |
    2017-01-12| PLFP| Fee payment|Year of fee payment: 4 |
    2018-01-11| PLFP| Fee payment|Year of fee payment: 5 |
    2019-01-11| PLFP| Fee payment|Year of fee payment: 6 |
    2020-11-06| ST| Notification of lapse|Effective date: 20201005 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1451184A|FR3017687B1|2014-02-14|2014-02-14|FLUID CONNECTOR WITH LOCKING RING.|FR1451184A| FR3017687B1|2014-02-14|2014-02-14|FLUID CONNECTOR WITH LOCKING RING.|
    US15/118,794| US10139025B2|2014-02-14|2015-02-11|Fluid connector with locking ring|
    EP15709239.6A| EP3105460B1|2014-02-14|2015-02-11|Fluid connector with locking ring|
    CN201580005453.6A| CN106029041B|2014-02-14|2015-02-11|Fluid connector with lock ring|
    PCT/FR2015/050328| WO2015121581A1|2014-02-14|2015-02-11|Fluid connector with locking ring|
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