JP2012135439A - Cover for male member and covered male member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reliably restore a male cover to an initial state when the male member is separated from a female member.SOLUTION: The male member cover includes: an outer circumference wall 61 that is elastically and compressively deformable; a top plate 65 that is provided in one end of the outer circumference wall and where a through-hole 66 into which the male member can be inserted is formed; a cover body 60 composed of a flexible material; a slide member 80 that is displaced along with the top plate; and an elastic material 70 that applies a force withstanding the displacement of the slide member caused by compression deformation of the outer circumference to the slide member.

Description

  The present invention relates to a male member cover mounted on a male member. Moreover, this invention relates to the male member with a cover by which the male member cover was mounted | worn with the male member.

  When administering a powdered medicine stored in a vial to a patient, generally, a solution is injected into the vial to dissolve the drug, and then a solution of the drug (medicine) is injected into the drug solution bag. Japanese Patent Application Laid-Open No. H10-228707 describes a connector that enables this series of operations to be performed efficiently. The connector is connected to a vial bottle, a chemical solution bag, and a syringe for moving a liquid material between them. The connector is provided with a cock for switching the flow path between these three. By operating the cock to push and pull the syringe in a state where an appropriate flow path is formed, the liquid substance can be moved between the vial and the drug solution bag via the syringe.

  In said patent document 1, the connector and the port of a chemical | medical solution bag are connected by the slip connection by a male luer and a needleless port. The needleless port includes a partition member (hereinafter referred to as “septum”) made of an elastic material such as rubber and having a linear slit (cut) formed at the center. By inserting a male luer (tubular body) without a sharp metal needle such as an injection needle into the slit of the septum, the needleless port and the male luer communicate with each other. When the male luer is removed from the needleless port, the septum slit closes immediately.

  On the other hand, the connector and the vial are communicated with each other by puncturing a rubber stopper of the vial with a resin needle formed on the connector.

  Some drugs are designated as powerful drugs, such as some anticancer drugs. It is necessary to avoid a situation in which a chemical solution containing such a dangerous drug leaks out and adheres to an operator's finger or the like, or an operator sucks the vapor of the chemical solution.

  Therefore, in the above-mentioned Patent Document 1, a male member cover (hereinafter simply referred to as “cover”) capable of compressively deforming the male luer in order to prevent the liquid material from leaking out from the male luer not connected to the needleless port. The method of covering with is described. A linear slit (cut) is formed at a position facing the tip of the male luer of the cover. When the male luer is not connected to the needleless port, the male luer is covered with a cover and the cover slit is closed. When trying to connect the male luer to the needleless port, the male luer passes through the slit in the cover and further through the slit in the septum. At this time, the cover is elastically compressed and deformed. When the male luer is removed from the needleless port, the cover extends and returns to its initial state.

International Publication No. 2010/061743 Pamphlet

  When the compressed and deformed cover extends, the cover slides on the outer peripheral surface of the male luer. The frictional force between the cover and the male luer during sliding prevents the cover from extending.

  In the above-mentioned patent document 1, the extension of the cover after extracting the male luer from the needleless port uses the elastic recovery force of the cover that has been compressed and deformed. If the elastic recovery force is weaker than the frictional force, there is a problem that the cover does not return to the initial state.

  In order to reduce the frictional force, it is only necessary to reduce the adhesion between the opposing edges of the cover slit. However, this reduces the sealing performance of the slit when the male luer is not penetrating, and increases the possibility of liquid leakage from the slit.

  Moreover, in said patent document 1, the cover is not provided in the resin needle punctured by the rubber stopper of a vial bottle, and the liquid leak from the said resin needle may arise.

  An object of the present invention is to reliably return a male member cover to an initial state when a male member such as a male luer or a resin needle is separated from a female member.

  The male member cover of the present invention is a male member cover that covers at least the tip of a male member in which a flow path through which a liquid material flows is formed, and is provided at an outer peripheral wall that is elastically compressible and deformable, and at one end of the outer peripheral wall. And a cover body made of a flexible material, a slide member that is displaced together with the top plate, and the outer peripheral wall compressively deformed. And an elastic member for applying a force against the displacement of the slide member to the slide member.

  The male member with a cover according to the present invention is a male member with a cover including a male member in which a flow path through which a liquid material flows and a male member cover that covers at least a tip of the male member. Is the male member cover of the present invention described above.

  According to the present invention, since the slide member that is displaced together with the top plate and the elastic member that applies the force against the displacement of the slide member that accompanies the compression deformation of the outer peripheral wall to the slide member, the outer peripheral wall is compressed and deformed. When the external force to be removed disappears, the outer peripheral wall expands using the elastic recovery force of the elastic member in addition to its own elastic recovery force. That is, a large force can be generated to extend the outer peripheral wall. Therefore, when the male member is extracted from the female member, the male member cover immediately returns to the initial state, and the tip of the male member can be covered.

FIG. 1A is a perspective view of a connector provided with a male member cover according to an embodiment of the present invention as seen from above, FIG. 1B is a perspective view seen from above the back, and FIG. 1C is a perspective view seen from below. is there. FIG. 2A is a cross-sectional view of the connector according to the embodiment of the present invention along the vertical section including the line 2A-2A in FIG. 1A. 2B is a cross-sectional view of the connector according to the embodiment of the present invention taken along the vertical cross-section including the line 2B-2B of FIG. 1B. 3A is a perspective view seen from above the connector main body constituting the connector shown in FIGS. 1A and 1B, and FIG. 3B is a perspective view seen from below. 4A is a plan view of a connector main body constituting the connector shown in FIGS. 1A and 1B, FIG. 4B is a front view thereof, and FIG. 4C is a bottom view thereof. 5A is a cross-sectional view of the connector main body along the vertical section including the line 5A-5A in FIG. 4A, and FIG. 5B is a cross-sectional view of the connector main body along the vertical section including the line 5B-5B in FIG. FIG. 6A is a perspective view seen from above the cover body constituting the connector shown in FIGS. 1A and 1B, and FIG. 6B is a perspective view seen from below. 7A is a cross-sectional view of the cover main body along the vertical cross section including the line 7A-7A in FIG. 6A, and FIG. 7B is a bottom view of the cover main body. FIG. 8A is a perspective view seen from below of the slide member constituting the connector shown in FIGS. 1A and 1B, and FIG. 8B is a perspective view seen from above. FIG. 9 is a perspective view showing a state immediately before the resin needle of the connector shown in FIGS. 1A and 1B is punctured into the rubber stopper of the vial. FIG. 10 is a perspective view showing a state in which the resin needle of the connector shown in FIGS. 1A and 1B is punctured into the rubber stopper of the vial. 11A is a cross-sectional view taken along the vertical direction including a line 11A-11A in FIG. 11B is a cross-sectional view taken along the vertical direction including a line 11B-11B in FIG. 10.

  In the above-described male member cover of the present invention, it is preferable that the elastic member is elastically stretched and deformed when the slide member is displaced, and a tensile force of the elastic member that is stretched and deformed is applied to the slide member. . By utilizing the elongation deformation of the elastic member and the tensile force generated thereby, the present invention can be easily applied even when the amount of compressive deformation of the outer peripheral wall of the cover body is large.

  It is preferable that the elastic member is provided integrally with the cover body. As a result, the number of parts can be reduced, and assembly is facilitated.

  It is preferable that one end of the elastic member is fixed to the resin needle or a member that is not displaced with respect to the resin needle, and the other end is fixed to the slide member. Thereby, the elastic recovery force of the elastic member can be used to extend the cover body that has been compressed and deformed.

  The slide member is preferably made of a material harder than the cover body. Thereby, since the slide member can hold | maintain a top plate firmly, the elastic recovery force which generate | occur | produced in the elastic member can be utilized in order to extend | expand a cover main body without waste.

  The slide member preferably deforms the top plate so that the through hole is closed. Thereby, when the male member is not inserted into the through hole, that is, the sealing performance of the through hole when the male member is in the non-connected state is improved, the liquid material may leak out of the cover body from the male member. Can be reduced.

  It is preferable that biasing forces in directions facing each other are applied to opposing edges of the closed through hole. Thereby, the sealing performance of the through hole when the male member is not inserted into the through hole is further improved.

  It is preferable that the through hole held in the holding hole has a “−” (minus) shape. Thereby, the opening shape of a through-hole can be simplified.

  It is preferable that the slide member is provided with a locking shape in which one end of the elastic member is locked. This facilitates assembly of the slide member and the elastic member.

  The outer peripheral wall preferably has a bellows shape. Thereby, the outer peripheral wall which compresses and deforms elastically in the longitudinal direction of the male member can be provided easily and at low cost.

  In the male member with a cover according to the present invention, when the male member is inserted into a female member (including puncture), the outer peripheral wall is compressed and deformed, and the male member is connected to the through hole of the top plate and the slide member. It is preferable to pass through.

  When the male member does not penetrate the through hole of the top plate, it is preferable that the opening on the front end side of the flow path of the male member is closed by the cover body. Thereby, the possibility that the liquid in the flow path of the male member leaks into the male member cover can be reduced.

  The through hole of the top plate is preferably provided at a position where the tip of the male member faces. Thereby, when inserting a male member in a female member, a male member can approach easily in a through-hole.

  The male member may be a resin needle that is pierced into a rubber stopper of a vial.

  Below, this invention is demonstrated in detail, showing suitable embodiment. However, it goes without saying that the present invention is not limited to the following embodiments. For convenience of explanation, the drawings referred to in the following description show only the main members necessary for explaining the present invention in a simplified manner among the constituent members of the embodiment of the present invention. Therefore, the present invention can include any member not shown in the following drawings. In addition, the dimensions in the following drawings do not faithfully represent actual dimensions, dimension ratios, and the like.

  The present invention will be described by taking as an example the case where the male member cover of the present invention is applied to a resin needle that is pierced into a rubber stopper of a vial.

  1A is a perspective view of a connector 1 provided with a male member cover according to an embodiment of the present invention, as seen from above the front, FIG. 1B is a perspective view as seen from above the back, and FIG. 1C is a perspective view as seen from below. It is. 2A is a cross-sectional view of the connector 1 along the vertical section including the line 2A-2A in FIG. 1A, and FIG. 2B is a cross-sectional view of the connector 1 along the vertical section including the line 2B-2B in FIG. FIG. The connector 1 is a connector that can be used when moving a liquid material between a vial and a drug solution bag via a syringe, similarly to the connector described in Patent Document 1 described above. In the following description, the configuration of the male member cover of the present invention and its peripheral portion will be mainly described, and the description of the configuration of the connector 1 other than these will be omitted.

  For convenience of the following description, the upper side of the paper surface of FIGS. 2A and 2B is referred to as the “upper side” of the connector 1 and the male member cover, and the lower side of the paper surface of FIGS. 2A and 2B is the connector 1 and the male member cover. Called “lower”. 2A and 2B is referred to as a “horizontal direction”. However, the upper and lower sides do not mean the upper and lower sides of the actual usage state of the connector 1 and the male member cover.

  The connector 1 of this embodiment includes a connector main body 20, a cover main body 60, an elastic member 70, a slide member 80, and a cock 90. The male member cover of this embodiment is a cover that covers at least the tip of a resin needle 40 (details will be described later) provided on the connector main body 20, and includes a cover main body 60, an elastic member 70, and a slide member 80.

  3A is a perspective view as seen from above the connector body 20, and FIG. 3B is a perspective view as seen from below. 4A is a plan view of the connector body 20, FIG. 4B is a front view thereof, and FIG. 4C is a bottom view thereof. 5A is a cross-sectional view of the connector main body 20 along the vertical section including the line 5A-5A in FIG. 4A, and FIG. 5B is an arrow of the connector main body 20 along the vertical section including the line 5B-5B in FIG. FIG.

  As shown in FIG. 5B, the connector body 20 includes a resin needle 40 that is pierced into a rubber stopper of a vial. The resin needle 40 is formed with a first flow path 41 through which liquid material passes and a second flow path 42 through which gas passes. The first flow path 41 and the second flow path 42 are independent from each other and extend along the longitudinal direction of the resin needle 40. The tip (lower end) of the resin needle 40 is sharpened by forming a substantially conical surface 45.

  The upper end of the resin needle 40 is connected to a cylindrical body 21 extending in the horizontal direction. The cylindrical body 21 has a substantially cylindrical shape and communicates with the first flow path 41 and the second flow path 42 of the resin needle 40. On the outer peripheral surface of the cylindrical body 21 and at the base of the resin needle 40, an annular concavo-convex 43 made up of a groove 43a and a protrusion 43b each having a circular shape in plan view is formed so as to surround the resin needle 40. Has been.

  One end of the cylindrical body 21 is a cock holding portion 25 into which a cock 90 is inserted, and the other end is a syringe connecting portion 26 into which a male luer of a syringe (not shown) is inserted. The 3rd flow path 23 and the 4th flow path 24 are formed in the position which the 1st flow path 41 of the resin needle | hook 40 and the 2nd flow path 42 oppose, or the position in the vicinity of it, and it communicates with the cylindrical body 21. . The third channel 23 is a channel through which the liquid material passes, and the fourth channel 24 is a channel through which gas passes. The upper ends of the third flow path 23 and the fourth flow path 24 are connected to and communicated with a chemical solution bag (not shown). The drug solution bag is filled with a solution for dissolving, for example, a powdered drug in a vial. A check valve (not shown) is preferably provided on the fourth flow path 24. The check valve is preferably configured using a sphere or the like so that the direction in which the gas flow is prohibited is reversed depending on the posture of the connector body 20.

  As shown in FIGS. 3B and 5B, a hood 30 having a substantially cylindrical shape coaxial with the resin needle 40 is integrally provided on the cylindrical body 21 so as to surround the resin needle 40.

  As shown in FIGS. 3A, 3B, and 5A, a pair of lock levers 31 substantially parallel to the resin needle 40 are provided so as to sandwich the resin needle 40. Each lock lever 31 is held by the cylindrical body 21 via a pair of support pieces 35 extending in a substantially horizontal direction. The lock lever 31 includes a lock piece 32 on one side (lower side) with respect to a position where the support piece 35 is connected, and an operation piece 34 on the other side (upper side). The hood 30 is cut out so that the lock piece 32 directly faces the resin needle 40. An engaging claw 33 is formed at the tip of the surface of the lock piece 32 facing the resin needle 30.

  The lock lever 31 including the lock piece 32 and the operation piece 34 can be regarded as a substantially rigid body. On the other hand, the support piece 35 that supports the lock lever 31 can be bent elastically. Therefore, when the support piece 35 is curved, the lock lever 31 swings elastically. For example, when the pair of lock levers 31 are swung so that the operation pieces 34 approach each other, the lock pieces 32 are separated from each other.

  As shown in FIGS. 4A and 4C, on both sides of the cylindrical body 21, the cylindrical body 21, the lock lever 31, and a pair of support pieces 35 that connect the cylindrical body 21 and the lock lever 31. An enclosed guide hole 28 is formed.

  As shown in FIGS. 3B, 5A, and 5B, a plurality (four in this embodiment) of locking claws projecting toward the resin needle 40 at a position near the lower end of the inner peripheral surface of the hood 30. 37 are formed at substantially equal angles.

  The connector body 20 can be integrally formed by injection molding or the like using a hard material such as polycarbonate or polyacetal.

  6A is a perspective view seen from above the cover body 60, and FIG. 6B is a perspective view seen from below. 7A is a cross-sectional view of the cover main body 60 along the vertical cross section including the line 7A-7A in FIG. 6A, and FIG. 7B is a bottom view of the cover main body 60.

  The cover body 60 includes an outer peripheral wall 61 having a substantially cylindrical shape, a top plate 65 provided at the lower end of the outer peripheral wall 61, and a base 67 provided at the upper end of the outer peripheral wall 61. In the cover main body 60, a lumen 64 having a predetermined depth is formed from the base 67 side toward the top plate 65.

  The outer peripheral wall 61 can be elastically compressed and deformed so that its vertical dimension is shortened. In order to realize this, in the present embodiment, the outer peripheral wall 61 has a bellows shape whose outer dimension is changed in a constant cycle in the vertical direction within a certain range. In the present embodiment, the cross-sectional shape along the horizontal direction of the outer peripheral wall 61 is a circle, but it may be an arbitrary shape such as a polygon such as a quadrangle or a hexagon.

  The outer peripheral surface of the outer peripheral wall 61 has a large-diameter portion 63 whose outer diameter is enlarged in the vicinity of the top plate 65, and the outer diameter is relatively smaller between the large-diameter portion 63 and the top plate 65. The small-diameter portion 62 is small.

  The top plate 65 has an outer diameter D1 and has a substantially disc shape as a whole, and a through-hole 66 that penetrates the top plate 65 in the vertical direction is formed at the center thereof. In the present embodiment, the through hole 66 viewed from below has a slit shape.

  The base portion 67 has a generally donut shape as a whole, and an annular unevenness 68 formed of a groove 68a and a protrusion 68b, each having a circular shape in plan view, is formed on the upper surface (the surface opposite to the outer peripheral wall 61). Is formed.

  A pair of elastic members 70 are provided at positions facing the outer peripheral edge of the base 67 so as to protrude outward in a direction substantially parallel to the horizontal direction. The elastic member 70 includes a base end portion 71 on the base portion 67 side and a locking portion 72 on the front end (free end) side. A locking hole 73 that penetrates the locking portion 72 is formed in the locking portion 72. A through hole 74 is formed in a region of the elastic member 70 between the base end portion 71 and the locking portion 72. Thereby, the base end portion 71 and the locking portion 72 are connected by the pair of elastic deformation portions 75.

  An inner peripheral surface constituting the inner cavity 64 of the cover main body 60 is a substantially cylindrical surface, and a substantially conical surface 69 is formed in the deepest portion (portion on the top plate 65 side). The cone angle of the substantially conical surface 69 is preferably the same as the cone angle of the substantially conical surface 45 at the tip of the resin needle 34 inserted into the cover body 60. The through hole 66 is provided at the apex of the substantially conical surface 69.

  The cover body 60 can be integrally formed with a flexible material (for example, silicon rubber or isoprene rubber) together with the elastic member 70.

  8A is a perspective view as seen from below the slide member 80, and FIG. 8B is a perspective view as seen from above.

  The slide member 80 includes a substrate 81 having a substantially disk shape. A holding hole 82 penetrating the substrate 81 is formed in the center of the substrate 81. As shown in FIG. 8A, the lower outer peripheral edge of the holding hole 82 recedes from the lower surface of the substrate 81 to form a holding recess 83. The shape of the holding recess 83 viewed from below is a circle having an inner diameter D0.

  A pair of notches 84 are formed on the outer peripheral edge of the substrate 81. The pair of notches 84 are formed at symmetrical positions with respect to the holding hole 82.

  A pair of guide members 85 are provided between the holding hole 82 and the pair of notches 84. The pair of guide members 85 are erected upward on the upper surface of the substrate 81 in parallel with each other. At the upper end of the guide member 85, a locking projection 86 is erected upward.

  On the outer peripheral surface of the substrate 81, except for the region where the notch 84 is formed, a locking rib 87 continuous in the circumferential direction protrudes outward.

  The slide member 80 can be integrally formed by injection molding or the like using a material harder than the cover main body 60, such as polycarbonate or polyacetal.

  Since the configuration of the cock 90 is not directly related to the present invention, a detailed description thereof is omitted. For example, as described in Patent Document 1 described above, a groove along the outer peripheral surface and / or a through hole penetrating in the radial direction is formed in a portion of the cock 90 inserted into the cock holding portion 25 of the connector body 20. It may be formed. Thus, the first flow path 41 and the second flow path 42, the third flow path 23 and the fourth flow path are rotated by rotating the cock 90 with the cock 90 inserted into the cock holding portion 25 of the connector body 20. 24 and the communication state between the syringe connection part 26 can be switched.

  Below, the assembly method of the connector 1 is demonstrated.

  First, the cover body 60 and the slide member 80 are combined.

  That is, the top plate 65 of the cover body 60 is inserted into the holding hole 82 of the slide member 80 from the upper side of the slide member 80 (the side where the guide member 85 is formed). Although the outer diameter D1 of the top plate 65 is larger than the inner diameter of the holding hole 82, the cover main body 60 is made of a flexible material, so that the top plate 65 passes through the holding hole 82 by deforming the top plate 65. be able to.

  The top plate 65 that has passed through the holding hole 82 is accommodated in the holding recess 83. The small diameter portion 62 of the cover main body 60 faces the inner peripheral surface of the holding hole 82. Therefore, as shown in FIG. 2B, the end edge of the holding hole 82 of the slide member 80 is sandwiched between the large-diameter portion 63 of the cover body 60 and the top plate 65 in the vertical direction. As a result, the vertical position of the top plate 65 is restrained by the slide member 80. Further, the locking protrusion 86 of the slide member 80 is fitted into the locking hole 73 of the elastic member 70 integrated with the cover body 60, and the locking portion 72 of the elastic member 70 is locked to the guide member 85.

  The outer diameter D1 of the top plate 65 is preferably larger than the inner diameter D0 of the holding recess 83. In this preferable configuration, the inner peripheral surface of the holding recess 83 with the inner diameter D0 applies a compressive force in the radial direction to the top plate 65. This compressive force brings the opposing edges of the slit-shaped through hole 66 formed in the top plate 65 into close contact. More preferably, the opposite end edges of the closed through-hole 66 are biased toward each other. Thereby, the sealing performance of the through hole 66 when the resin needle 40 is not inserted into the through hole 66 is improved.

  Next, the slide member 80 to which the cover body 60 is assembled as described above is combined with the connector body 20.

  That is, the slide member 80 is inserted into the hood 30 of the connector body 20 from the guide member 85 side. At this time, the connector body 20 and the slide member 80 are aligned so that the pair of guide members 85 of the slide member 80 face the pair of lock levers 31 of the connector body 20. Since the notch 84 is formed in the outer peripheral edge of the substrate 81 of the slide member 80, the engaging claw 33 formed at the tip of the lock lever 31 of the connector body 20 is connected to the substrate 81 of the slide member 80 during the insertion process. Will not collide. When the locking rib 87 of the slide member 80 gets over the locking claw 37 formed on the inner peripheral surface of the hood 30, the assembly of the slide member 80 to the connector main body 20 is completed.

  Finally, the cock 90 is inserted into the cock holding portion 25 of the connector body 20.

  Thus, the connector 1 shown in FIGS. 1A, 1B, 2A, and 2B is obtained.

  As shown in FIGS. 2A and 2B, the resin needle 40 of the connector main body 20 is inserted into the lumen 64 of the cover main body 60. The annular unevenness 43 of the connector body 20 is fitted with the annular unevenness 68 of the cover body 60. Therefore, the space including the resin needle 40 is liquid-tightly sealed from the outside by the cover body 60. Preferably, the opening on the tip side of the first flow path 41 and the second flow path 42 of the resin needle 40 is sealed by being in close contact with the inner peripheral surface of the cover body 60. The through hole 66 of the top plate 65 faces the tip of the resin needle 40.

  Since the locking ribs 87 of the slide member 80 are engaged with the locking claws 37 formed on the inner peripheral surface of the hood 30, the slide member 80 does not fall downward with respect to the connector body 20. .

  Since the notch 84 is formed in the outer peripheral edge of the substrate 81 of the slide member 80, even if the lock lever 31 is swung during use, the lock piece 32 and the engaging claw 33 of the lock lever 31 are formed on the slide member 80. There is no collision.

  As shown in FIG. 2B, the pair of guide members 85 of the slide member 80 are inserted into the pair of guide holes 28 of the connector body 20.

  Next, the connection between the connector 1 of this embodiment and the vial bottle 100 will be described.

  The connector 1 of this embodiment is opposed to the vial 100 as shown in FIG. 9, and the resin needle 40 is punctured into the rubber stopper 101.

  FIG. 10 is a perspective view showing a state in which the resin needle 40 of the connector 1 is punctured into the rubber stopper 101 of the vial 100. 11A is a cross-sectional view along the vertical direction including the 11A-11A line in FIG. 10, and FIG. 11B is a cross-sectional view along the vertical direction including the 11B-11B line in FIG. Actually, a male luer of a syringe is connected to the syringe connection portion 26 of the connector 1, and a chemical solution bag is connected to the third flow path 23 and the fourth flow path 24 via a connector other than the connector 1. However, in FIG. 9, FIG. 10, FIG. 11A, and FIG. 11B, these are not shown in order to simplify the drawings.

  Below, the operation | movement of each part which comprises the connector 1 when the resin needle 40 punctures the rubber stopper 101 is demonstrated.

  As shown in FIG. 9, the connector 1 is opposed to the rubber stopper 101 of the vial 100, and the connector 1 is pressed against the vial 100 so that the rubber stopper 101 is inserted into the hood 30.

  As shown in FIG. 1C, the lower surface of the substrate 81 and the lower surface of the top plate 65 of the slide member 80 are exposed in the hood 30. Therefore, when the rubber plug 101 is inserted into the hood 30, the upper surface of the rubber plug 101 comes into contact with the lower surface of the substrate 81 (in some cases, further the lower surface of the top plate 65). When the rubber plug 101 is inserted deeper into the hood 30, the slide member 80 and the top plate 65 held by the slide member 80 are inserted into the hood 30 together with the rubber plug 101 and integrated with the connector main body 20 including the resin needle 40. Is displaced. Accordingly, the tip of the resin needle 40 is pressed against the top plate 65 of the cover main body 60, elastically deforms the top plate 65, and enters the through hole 66. The resin needle 40 passes through the through hole 66 and the holding hole 82 of the slide member 80. Thereafter, the resin needle 40 pierces the rubber stopper 101 of the vial bottle 100. On the other hand, since the annular unevenness 68 of the cover body 60 is fitted to the annular unevenness 43 of the connector body 20, the base 67 of the cover body 60 cannot be displaced relative to the connector body 20. As a result, the outer peripheral wall 61 of the cover main body 60 is elastically compressed and deformed in the vertical direction. Further, the elastic member 70 spanned between the base 67 and the guide member 85 is elastically stretched and deformed.

  As the resin needle 40 penetrates the rubber stopper 101 and the first flow path 41 and the second flow path 42 formed in the resin needle 40 communicate with the internal space of the vial 100, the rubber stopper 101 is deepened into the hood 30. When inserted, the engaging claws 33 formed at the tips of the pair of lock levers 31 of the connector body 20 engage with the lower edge 102 of the vial 100.

  Thus, as shown in FIGS. 10, 11A, and 11B, the connector 1 and the vial 100 can be connected. As shown in FIGS. 11A and 11B, the resin needle 40 penetrates the top plate 65 and the rubber plug 101 in a state where the substrate 81 and the top plate 65 are in contact with the rubber plug 101. The outer peripheral wall 61 is elastically compressed and deformed. The elastic member 70 (particularly the elastic deformation portion 75) is elastically stretched and deformed. Since the engagement claw 33 of the connector main body 20 and the edge 102 of the vial 100 are engaged, the communication state between the resin needle 40 and the vial 100 is maintained even if the connector 1 and the vial 100 are released. Maintained.

  The connector 1 and the vial 100 are separated as follows.

  The pair of operation pieces 34 of the connector main body 20 are displaced so as to approach each other, and the engagement between the engagement claw 33 of the lock piece 32 and the edge 102 of the vial 100 is released. In this state, the connector 1 is pulled out from the vial bottle 100. The outer peripheral wall 61 that has been compressively deformed and the elastic member 70 that has been deformed to stretch are immediately elastically recovered. When the resin needle 40 comes out of the through hole 66 of the top plate 65, the through hole 66 immediately recovers and closes. Further, in the rubber stopper 101 of the vial bottle 100, when the resin needle 40 is removed, the hole through which the resin needle 40 passes is immediately closed. Thus, the connector 1 returns to the initial state shown in FIGS. 1A, 1B, 2A, and 2B.

  As described above, in the male member cover of the present embodiment, the slide member 80 is displaced together with the top plate 65, and the elastic member 70 has a force that resists the displacement of the slide member 80 due to the compression deformation of the cover body 60. Applied to the slide member 80. Therefore, when the resin needle 40 is pulled out from the rubber stopper 101 of the vial 100, the resultant force of the elastic recovery force of the outer peripheral wall 61 and the elastic recovery force of the elastic member 70 extends the cover body 60 to the initial state. Compared with the conventional male member cover described in Patent Document 1 that does not include a member corresponding to the elastic member 70, a greater force is generated in this embodiment because the cover body 60 is extended. Therefore, when the resin needle 40 is removed from the rubber stopper 101, the male member cover of this embodiment immediately returns to the initial state, and the resin needle 40 is reliably sealed by the cover body 60.

  In the process of returning the cover body 60 from the shortened state (FIGS. 11A and 11B) to the initial state (FIGS. 2A and 2B), the edge of the through hole 66 of the top plate 65 slides on the outer peripheral surface of the resin needle 40. Move. In order to slide the top plate 65 with respect to the resin needle 40, a force larger than the frictional force between the resin needle 40 and the top plate 65 is required. In the present embodiment, since a larger force can be generated as described above, the cover body 60 can be extended even if the frictional force between the resin needle 40 and the top plate 65 is large.

  When trying to improve the sealing performance of the through-hole 66 in a state where the resin needle 40 does not penetrate the through-hole 66 of the top plate 65, the frictional force between the resin needle 40 and the top plate 65 generally increases. According to the present invention, since the cover main body 60 can be extended even if the frictional force is large, the sealing performance of the through hole 66 can be improved.

  In the present embodiment, since the top plate 65 is compressed in the radial direction by the inner peripheral surface of the holding recess 83 of the slide member 80, the resin that has passed through the resin needle 40 before and through the through hole 66. After the needle 40 comes out of the through hole 66, the through hole 66 is closed by the compressive force of the holding recess 83, and a liquid-tight seal is formed. Therefore, compared with the male member cover of Patent Document 1 described above that does not include a configuration for applying a compressive force to close the through hole, in this embodiment, the sealing performance of the through hole 66 of the top plate 65 is improved. Can do. Further, even if the resin needle 40 is repeatedly inserted into and removed from the through hole 66 of the top plate 65, the resealability of the through hole 66 is hardly deteriorated.

  When a compressive force is applied to the top plate 65 to close the through hole 66 as in the present embodiment, the frictional force between the resin needle 40 and the top plate 65 increases. In this embodiment, even if the top plate 65 is compressed in this way, the resin needle 40 can be slid. Therefore, according to the present invention, the reliability of the return of the male member cover to the initial state and the sealing performance can be achieved at a high level.

  There is no particular limitation on the method of giving and receiving the liquid material via the connector 1 to the vial 100, and for example, it may be the same as the method described in Patent Document 1, but is not directly related to the present invention. Detailed description is omitted.

  The above-described embodiment is merely an example. The present invention is not limited to the above embodiment, and can be modified as appropriate.

  In the above embodiment, the elastic member 70 is provided integrally with the cover main body 60. This is advantageous in terms of reducing the number of parts and facilitating assembly. However, the elastic member 70 may be a separate member from the cover main body 60. In this case, for example, the base end 71 of the elastic member 70 is not fixed to the base 67 of the cover main body 60 but may be fixed at an arbitrary position other than the slide member 80 such as the outer peripheral surface of the tubular portion 21 of the connector main body 20. Good. By separating the elastic member 70 and the cover main body 60, the degree of freedom in design and material selection is improved.

  Regardless of whether the elastic member 70 is a single part or a separate part from the cover body 60, one end (base end portion 71) of the elastic member 70 is fixed to the resin needle 40 or a member that is not displaced with respect to the resin needle 40. If the other end (locking portion 72) is fixed to the slide member 80 that is displaced together with the top plate 65, the elastic recovery force of the elastic member 70 is extended by compressing and deforming the cover body 60 as in the above embodiment. Can be used for.

  In the elastic member 70 shown in the above embodiment, in order to facilitate elastic deformation, a through hole 74 is formed between the base end portion 71 and the locking portion 72, and the elastic deformation is relatively small in cross-sectional area. Part 75 was formed. However, the configuration of the elastic deformation portion 75 is arbitrary in the present invention. For example, the elastic deformation portion may be formed by reducing the diameter of the portion between the base end portion 71 and the locking portion 72 of the elastic member 70.

  In the above embodiment, when the cover main body 60 is compressively deformed, the elastic member 70 is stretched and deformed. This configuration is advantageous in that it can be easily applied even when the amount of compressive deformation of the cover body 60, that is, the amount of displacement of the top plate 65 is large. However, the present invention is not limited to this. For example, when the cover main body 60 is compressed and deformed, the elastic member may be elastically compressed or deformed, or the elastic member may be elastically bent and deformed. .

  The material of the elastic member can be appropriately selected according to the shape of the elastic member. For example, the elastic member may be composed of a spring made of metal or resin.

  The shape of the through hole 66 formed in the top plate 65 is not limited to the above embodiment, and can be set arbitrarily. The plan view shape of the through hole 66 when the compressive force is not applied to the top plate 65 is, for example, a shape in which a pair of arcs are connected at both ends (substantially the same shape as the plan view shape of the rugby ball), an ellipse, It may be oval, rhombus, or a shape similar to these. As described above, when the through hole 66 is a so-called “long hole” whose opening dimension is long in any one direction, the top plate 65 is compressed, so that the through hole 66 is formed as in the above embodiment. It can be closed in a “-” (minus) shape. However, the external shape of the closed through hole is not limited to the “−” shape as in the above embodiment, and may be, for example, a “+” (plus) shape.

  In the above embodiment, the holding recess 83 of the slide member 80 applies a substantially uniform compressive force toward the center of the top plate 65 to the entire outer peripheral surface of the top plate 65, but the present invention is not limited to this. If the through hole 66 formed in the top plate 65 can be closed by the compression force, the direction of the compression force can be freely set. When the through hole 66 is the above-described long hole, a compressive force may be applied in a direction perpendicular to the long axis (axis along the direction in which the opening dimension is maximized).

  Further, unlike the above embodiment, the slide member 80 may be configured not to apply a compressive force to the top plate 65. Even with such a configuration, it is possible to obtain a sealing property equivalent to that of the conventional male member cover described in Patent Document 1 described above.

  The male member cover of the present invention can be applied to a resin needle provided in any connector other than the connector shown in the above embodiment. Furthermore, the present invention can also be applied to a resin needle provided other than the connector, for example, a resin needle provided to a syringe. Further, it can be applied to a metal needle instead of a resin needle.

  In the above embodiment, the case where the male member is a resin needle and the female member is a rubber stopper of a vial has been described, but the present invention is not limited thereto. For example, the female member is a partition member (sometimes referred to as a “septum”) made of an elastic material such as rubber having a linear slit (cut) formed in the center, and the male member is inserted into the septum. It may be a tubular body (male lure) without a sharp metal needle such as an injection needle. The male member of the present invention includes various members that are communicated by being inserted (including puncture) into a counterpart member (female member).

  Although there is no restriction | limiting in particular in the utilization field of this invention, It can utilize preferably for the male member used with the transport line for performing infusion, blood transfusion, extracorporeal blood circulation, etc. Moreover, it can also utilize for the male member of the various connectors used when preparing the chemical | medical solution etc. which are administered to a patient. In particular, it can be preferably used in the field of handling dangerous drugs (for example, anticancer drugs) that need to be prevented from leaking or evaporating. Furthermore, it can also be used for male members used in various fields for handling liquid substances such as foods other than those for medical use.

1 Connector 20 Connector Body 40 Resin Needle (Male Member)
41 First channel 42 Second channel 60 Cover body 61 Outer wall 65 Top plate 66 Through hole 70 Elastic member 72 Locking portion 73 Locking hole 80 Slide member 81 Substrate 82 Holding hole 83 Holding recess 85 Guide member 86 Locking Protrusion (locking shape)
100 vials 101 rubber stoppers for vials

Claims (11)

A male member cover that covers at least the tip of the male member formed with a flow path through which a liquid material flows,
A cover body made of a flexible material, including an outer peripheral wall that is elastically compressible and deformable, and a top plate that is provided at one end of the outer peripheral wall and has a through-hole through which the male member can pass. ,
A slide member that is displaced together with the top plate;
A male member cover, comprising: an elastic member that applies a force against the displacement of the slide member as the outer peripheral wall compressively deforms to the slide member.   The male member cover according to claim 1, wherein the elastic member is elastically stretched and deformed when the slide member is displaced, and a tensile force of the elastic member that is stretched and deformed is applied to the slide member.   The male member cover according to claim 1 or 2, wherein the elastic member is provided integrally with the cover body.   The male member cover according to claim 1, wherein one end of the elastic member is fixed to the resin needle or a member that is not displaced with respect to the resin needle, and the other end is fixed to the slide member.   The male member cover according to claim 1, wherein the slide member is made of a material harder than the cover main body.   The male member cover according to any one of claims 1 to 5, wherein the slide member deforms the top plate so that the through hole is closed.   The male member cover according to any one of claims 1 to 6, wherein urging forces in opposite directions are applied to opposing edges of the closed through hole.   The male member cover according to claim 1, wherein the through hole held in the holding hole has a “−” shape.   The male member cover according to claim 1, wherein the slide member is provided with a locking shape in which one end of the elastic member is locked.   The male member cover according to claim 1, wherein the outer peripheral wall has a bellows shape. A male member with a cover including a male member in which a flow path through which a liquid material flows and a male member cover that covers at least a tip of the male member,
The said male member cover is a male member cover in any one of Claims 1-10, The male member with a cover characterized by the above-mentioned.

Images