JP5689901B2 - Puncture member protection device - Google Patents

Description

  The present invention relates to a female puncture member protecting apparatus for coupling with a male coupling part, a male coupling part, and a method for coupling the female puncture member protecting apparatus and the male coupling part.

  The administration of dangerous drugs such as cytotoxins has been troublesome for many years for those who take daily dangerous drugs. Nurses are at risk of being contaminated with dangerous drugs during drug preparation, administration, or after treatment. Such contamination may be in the form of a chemical that results from leakage due to improper or simply mishandling of equipment or instruments. However, leakage from properly used professional equipment is a problem even if the leakage is very small. Because nurses have been exposed to dangerous drugs for a long time, even a small amount of dangerous drugs can cause illness. It is therefore important to minimize leakage and minimize the risk of leakage.

  One detailed dangerous procedure is, for example, when a nurse moves a drug from one fluid container to another. Such a transfer usually involves the use of a puncture member such as a needle. A puncture member protection device is commonly used to protect the nurses involved. Such devices are intended to protect the user not only from contamination, but also from accidentally puncturing himself or any other third party.

  US Pat. No. 6,890,328 describes a connector device for establishing fluid communication between a diluent container having a side wall and a drug vial. The drug vial can be selectively attached to the device without piercing the vial closure and without breaking the hermetic seal at the fluid inlet of the piercing member. Means are provided for coupling the vial receiving chamber to the liquid container. The device can be moved from a non-actuated position where the piercing member is outside the sidewall and no fluid flows between the liquid container and the drug vial to an activated position where the fluid passes between the liquid container and the drug vial through the fluid path It is. The device can be moved from the inoperative position to the activated position by a force applied to the device outside the liquid container. However, the drug vial and diluent container can be disconnected at any time, leaving the needle exposed to the nurse. The needle in such a case is full of dangerous drugs.

  U.S. Pat. No. 5,514,117 describes a medical connector for transferring fluid from a first fluid container to a second fluid container for administering fluid to a patient. The medical connector is formed from two elements. The first element includes a cannula hub to which a cannula is attached, a base extending from the hub, and a finger extending from the base. The second element is a collar that includes a support and a bar extending therefrom. The collar is manually slidable along the first element in a direction that the cannula extends between the retracted position and the locked position. The bar expands to engage the fingers with the junction terminals. The bar is elastically deformable and provides a spring force to lock the finger to the mating terminal. However, the medical connector has the disadvantage that the fingers can be easily unlocked by simply pulling away either the collar or the joining terminal, thereby exposing the user to contamination.

  The object of the present invention is to at least partially solve the above problems. More specifically, the above problem is at least partially solved by a female piercing member protection device having a longitudinal axis A for coupling with a male coupling. The female puncture member protecting apparatus includes a first and second ends, an outer case having inner and outer side surfaces, and a connecting member having first and second ends. The connecting member is disposed on the outer case and is at least partially surrounded.

  Further, the outer case is adapted to move between a first and a second position, and when the outer case is in its first position, the connecting member is substantially locked from movement along the longitudinal axis A. When the outer case is in its second position, the connecting member is movable along the longitudinal axis A. The female piercing member protection device further includes an operating position and a non-operating position. The connecting member is configured to be connected to the male connecting portion by a deformable locking device, and when the outer case is in the second position, the deformable locking device is configured to prevent the male connecting portion from being engaged and disengaged. Deformation is prevented by the outer case.

  The present invention provides a fixed puncture protection device that is operable to establish fluid communication after a fluid container is coupled and fixed to a puncture device. The deformable locking device provides an easy connection that actually allows the user to release the fluid container after connecting to the lancing device. The puncture member protection device can then substantially lock the connected fluid containers so as to effectively prevent accidental disconnection. Only after locking the piercing member device to the fluid container via the male connection can it be moved to the operating position, so that the needle is not exposed, so this device makes it a very safe medicine or drug. Administration and transfer can be realized. Moreover, since the orientation of the male connection part before connection is unnecessary, quick and simple connection is possible.

  For added safety, the connecting member is preferably arranged between the first and second ends of the outer case. Thereby, an outer case functions as a protective sleeve and covers the junction part between the fluid containers connected with the puncture member protection apparatus.

  In one embodiment of the invention, the deformable locking device comprises at least one deformable locking flange that may or may not form an integral part of the connecting member. However, from a manufacturing point of view, it is easier to manufacture the deformable lock flange as an integral part, that is, as a single unit. The connecting member may carry at least two, at least three, or at least four deformable locking flanges. Alternatively, there may be a plurality of 5-15 deformable lock flanges.

  The outer case may include at least one opening, and when the connecting member is in the first position, at least so that the deformable locking flange can be deformed into the opening while connected to the male connector. One opening and at least one deformable locking flange are substantially aligned. When the outer case is in the second position, the deformable lock flange disengages from the opening of the outer case so that the deformable lock flange is substantially unengageable from the male connector.

  The opening may be replaced with a cavity disposed on the inner side surface of the outer case. Of course, a combination of openings and cavities is also possible. Although the cavity is preferred because the outer case protects the deformable locking flange, the opening allows the user to more easily observe and manage the connection established. The number of openings, cavities, and openings and cavities is not essential, but should preferably be the same as the number of lock flanges, for example, two lock flanges can surround both Or it can easily cooperate with one cavity.

  In one embodiment of the present invention, the female piercing member protection device includes a second locking device that can substantially lock the connecting member from movement along the longitudinal axis A when the connecting member is in the activated position. Prepare. The second locking device allows the user to safely release the puncture device without fear or danger of the puncture member being engaged or disengaged after fluid communication is established. The second locking device preferably includes a locking position where the connecting member is substantially non-slidable along the longitudinal axis A and an unlocking where the connecting member is substantially slidable along the longitudinal axis A. With position. The second locking device may be in the form of a rotatable lock ring that surrounds the outer case. The rotatable ring preferably includes a lock protrusion that cooperates with the outer case and a groove disposed in the outer case, as will be described later.

The connecting member comprises at least one barrier member, preferably two barrier members.
The two barrier members may be arranged substantially parallel to each other and intersecting the longitudinal axis A. Further, the two barrier members may be arranged to form a puncture tip protection chamber between the two barrier members. The barrier member provides a leakage safety measure both during and after the fluid transfer where the remaining drug may be in the protective device.

  The present invention further relates to a method for connecting the female piercing member protection device and the male connecting portion. The female piercing member protection device has a longitudinal axis (A), an outer case, and a connecting member disposed in the outer case, the method comprising connecting the connecting member to the male connection by a deformable locking device; The female piercing member from the first position where the female piercing member protection device is in an inoperative state with respect to the connecting member and the connecting member is substantially non-slidable along the longitudinal axis A. The protective device is in a non-actuated state, and the connecting member moves to a second position that is substantially slidable along the longitudinal axis A. Further, when the outer case is in the second position, the fluid container is substantially undetachable from the puncture member protection device.

  The method according to the invention provides a secure connection between the male connection and the female piercing member protection device. The female piercing member protection device can then be actuated by moving the connecting member to the actuated position, and can be substantially locked in the actuated position by a lock ring disposed around the outer case.

  The present invention further relates to a male coupling portion for coupling to the female puncture member protection device. The male connector includes a longitudinal cylindrical body having a longitudinal axis C, first and second side surfaces, and outer and inner surfaces. The barrier member is disposed at the center of the first side surface of the male coupling member that intersects the longitudinal axis C. Furthermore, the fluid communication channel is formed by the inner side surface, and the fluid communication channel extends from the barrier member of the male connection part to the second side surface of the male connection part.

  The male connection further comprises at least one rotating grip projection to provide further rotational friction with the female piercing member protector after assembly. The male connecting portion provides a safe connection with the female piercing member connecting device from the viewpoint of leakage protection. The peripheral wall may surround the first end of the male connecting portion. This wall allows a firm connection and at the same time prevents the barrier member from being directly exposed to, for example, improper handling.

  In order to increase rotational friction, at least one rotary grip projection is arranged on the peripheral wall. Thereby, it is possible to insert the male coupling portion into the female puncture member protecting apparatus by an appropriate distance while obtaining the above-described advantage due to the peripheral wall. In practice, the at least one rotating grip projection further strengthens the peripheral wall, thereby providing a firm and safe connection. The male connection may include 1 to 20 rotating grip protrusions, and one preferred embodiment includes three rotating grip protrusions. The at least one rotating grip projection may be substantially parallel to the longitudinal axis C, thereby providing additional rigidity, for example to the peripheral wall of the male coupling.

1 is a perspective view of a female puncture member protecting apparatus according to the present invention. FIG. 2 is an exploded view of the female puncture member protection device of FIG. 1. FIG. 2 is a cross-sectional view of the female puncture member protecting apparatus of FIG. 1. FIG. 2 is a perspective view of a male connection portion that is connected to the female puncture member protection device of FIG. 1. FIG. 2 is a perspective view of a male connection portion that is connected to the female puncture member protection device of FIG. 1. The cross section after the connection of a female puncture member protection apparatus and a male connection part is shown. The cross section of the female puncture member protecting device and the male connecting portion in the operating position is shown. The cross section of the female puncture member protecting device and the male connecting portion in the operating position is shown.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.
In the following sections, different embodiments according to the invention are described in more detail. FIG. 1 shows a female piercing member protector 100 having a longitudinal axis A and a transverse axis B that provides fluid communication between first and second fluid containers. The female puncture member protecting apparatus 100 includes a connecting member 101 for connecting to the first fluid container via the male connecting portion. The connecting member 101 is at least partially surrounded by a rotatable outer case 102 that can rotate between first and second positions.

  In the first position, the connecting member 101 is substantially non-slidable along the longitudinal axis A, and in the second position, the connecting member 101 is substantially slidable along the longitudinal axis A. The first position is a non-actuated position that is protected in that the female puncture member protection device 100 completely protects the puncture member from being exposed, and at the same time the connection member 101 is substantially non-slidable to the activated position. It is. The female piercing member protection device 100 also includes an operating position at which the piercing member is exposed to provide fluid communication between the first and second fluid containers. The operating position can be reached only when the outer case 102 rotates to the second position, and the connecting member 101 moves along the longitudinal axis A to the operating position.

  The outer case 102 covers the connecting member 101 in order to provide a protective sleeve on which the connecting member can slide. The lock ring 103 is disposed along the periphery of the outer case and substantially prevents the connecting member from sliding between the operating position and the non-operating position by rotating between the locked position and the unlocked position. It functions as a second locking device capable of The connecting means 104 is disposed on the outer case 102 so as to face the connecting member 102 so as to enable connection to the second fluid container. A piercing member (not shown) is disposed on the coupling means 104 to provide fluid communication between the first and second fluid containers.

In FIG. 2, each element is shown exploded along the longitudinal axis A and will be described in more detail below.
First, regarding the outer case 102, the outer case 102 includes first and second side surfaces 110 and 111, inner and outer side surfaces 112 and 113, and has a substantially hollow cylindrical shape. At least one opening 114 is disposed in the vicinity of the second end 111 of the outer case 102. The opening 114 has first and second longitudinal side surfaces 115, 116 and first and second lateral side surfaces 117, 118 and is substantially rectangular. The opening 114 is configured to cooperate with a lock flange disposed on the connecting member 101.

  A straight groove 120 having first and second ends 121 and 122 is disposed in the outer case 102 and extends in the outer case 102. The straight groove 120 further extends from the first side surface 110 of the outer case toward the second end 111 of the outer case 102 and passes through the middle of the outer case 102 with respect to the longitudinal axis A of the outer case 102. The straight groove 120 stops just above the opening 114 with respect to the longitudinal axis A. The straight groove 120 includes an assembly part 123 and an operation part 124. The assembly part 123 and the actuating part 124 are separated by a connecting member lock groove 125 extending substantially vertically from the center of the straight groove 120 along the outer case 102.

  In addition, the operating and non-operating positioning grooves 126 extend substantially vertically from the second end 122 of the linear groove 120 along the outer case 102. The connecting member lock groove 125 is slightly shorter than the positioning groove 126 and extends along the outer case 102. The straight groove 120, the connecting member locking groove 125, and the positioning groove 126 together form a substantially F-shaped groove system. The outer case can rotate between the first and second positions, preferably 5 to 180 degrees, more preferably 20 to 120 degrees, and most preferably 40 to 95 degrees.

A stop flange 127 is disposed between the connecting member lock groove 125 and the positioning groove 126.
The stop flange 127 extends along the periphery of the outer case 102 and crosses the operating portion 124 of the linear groove 120. When the outer case 102 and the connecting member 101 are assembled, the lock ring 103 is installed along the periphery of the outer case 102 adjacent to the stop flange 127.
The stop flange 127 prevents the lock ring 103 from sliding along the longitudinal axis A in the direction toward the second side surface 111 of the outer case 102.

  Further, the connecting member 101 is shown in FIG. The connecting member 101 includes a substantially hollow cylindrical sleeve whose outer diameter is slightly smaller than the inner diameter of the outer case. The coupling member 101 is inserted into the outer case from the first side surface 110 of the outer case 102 while being assembled to the outer case 102. The connecting member 101 includes first and second side surfaces 130 and 131 and inner and outer side surfaces 132 and 133. The circumferential flange 134 extends along the periphery of the connecting member 101 on the first side surface 130 of the connecting member 101. The protrusion 135 protrudes from the peripheral edge of the circumferential flange 134 of the connecting member 101. The protrusion 135 slides into the assembly portion 123 of the linear groove 120 during assembly, and operates in the connecting member lock groove 125, the positioning groove 126, and the operating portion 124 during use of the female puncture member protection device 100. It has become.

  At least one deformable locking flange 136 is disposed substantially parallel to the longitudinal axis A. The deformable locking flange 136 includes first and second longitudinal side surfaces 137, 138 and first and second lateral side surfaces 139, 140. The first lateral direction side surface 139 is an integral part of the connecting member 101, and is arranged in the vicinity of the middle of the connecting member 101 with respect to the longitudinal axis A. Therefore, the deformable lock flange 136 is an integral part of the connecting member 102.

  The deformable lock flange 136 extends from the middle of the connecting member 101 to the second side 131 of the connecting member 101. A small groove and first and second longitudinal side surfaces 137 and 138 are formed separately from the connecting member 101. The deformable lock flange 136 of the assembled connecting member 101 cooperates with the opening 114 of the outer case 102 to lock a male connecting member to be described later.

  Although the outer case opening 114 and the deformable locking flange 136 of the connecting member 101 have been described singularly, in a preferred embodiment of the present invention, the outer case has at least two opposing openings 114 and at least two opposing deformations. A possible locking flange 136 is provided.

  The lock ring 103 takes the form of a ring-shaped sleeve member with outer and inner side surfaces 150, 151 and first and second lateral side surfaces 152, 153. The lock protrusion 154 (shown in FIGS. 3 to 7) protrudes from the inner surface 151 of the lock ring 103 between the first and second side surfaces 152 and 153. The lock ring has an inner diameter 155 sufficient to allow the lock ring 103 to fit snugly into the outer case 102 after assembly. The spacing between the first and second side surfaces 152, 153 of the lock ring 103 is substantially shorter than the length of the inner diameter 155 that provides a substantially ring-like configuration for the lock ring 103.

  The outer surface 150 of the lock ring 103 includes at least one grip protrusion 156 that extends from the wall of the lock ring 103. The lock ring 103 is preferably provided with a plurality of grip protrusions. Such grip protrusions assist the user when rotating the lock ring 103. Also, the grip protrusion is replaced with a transparent opening that matches the protrusion 154 and is substantially parallel to the protrusion 154 in the illustrated embodiment of the invention. Such a transparent opening can be covered with a protective window as required. The purpose of the transparent opening 156 is to indicate to the user whether the lock ring 103 is in the locked or unlocked position. Instead of a transparent opening, the lock ring 103 can be made from a transparent material.

  The hollow needle-like puncture member 105 includes first and second ends 160 and 161 and an envelope surface 162. The first end 160 comprises a puncture tip 163 intended to puncture the male connector of the fluid container in use. The fluid outlet opening 164 is disposed in the vicinity of the puncture tip 163, and the fluid inlet opening 165 is disposed at the second end 161. Although the terms outlet and inlet opening are used, the opening and piercing member 105 is not limited to unidirectional flow.

  The connecting member 104 includes a threaded portion 170 extending along the longitudinal axis A and adapted to allow the fluid container to be attached to the connecting means 104. The threaded portion 170 includes an opening (not shown) through which the second end 161 of the puncture member 105 can be disposed so that the fluid inlet opening 165 and the fluid container are in fluid communication after connection. The threaded portion 170 is a conventional luer lock means in the illustrated embodiment. The sleeve member 171 is disposed on the screw portion 170. The sleeve member 171 includes first and second lateral side surfaces 172, 173 and outer and inner side surfaces 174, 175 extending substantially perpendicular to the longitudinal axis A.

  The threaded portion is substantially disposed at the center of the first lateral side surface 172 of the sleeve member 171 having a longer diameter than the threaded portion 170. The sleeve member 171 is further provided with an assembly opening (not shown) at the second end 173 of the sleeve portion. The assembly opening extends substantially from the second lateral side surface 173 to the vicinity of the first lateral side surface 172 of the sleeve member 171. After assembly, the assembly opening is adapted to at least partially surround the first side 110 of the outer case 102.

In addition, FIG. 2 shows first and second barrier members which will be described in more detail below.
FIG. 3 shows a cross section of the previously described embodiment of the invention after assembly. More specifically, FIG. 3 shows a female piercing member protection device having a longitudinal axis A and comprising a connecting member 101 and an outer case 102 arranged to cover the connecting member 101 to provide a protective sleeve. 100 is shown. The lock ring 103 is disposed along the periphery of the outer case 102 and serves as a second locking device that can substantially prevent the connecting member from sliding along the longitudinal axis A between the operating position and the non-operating position. Function. The connecting means 104 is disposed on the outer case 102 so as to be connected to the second fluid container. The piercing member 105 is disposed on the coupling means 104 to provide fluid communication between the first and second fluid containers during use.

  As described above, the connecting member 101 includes the first and second side surfaces 130 and 131 and the inner and outer side surfaces 132 and 133. The circumferential flange 134 extends along the periphery of the connecting member 101 on the first side surface 130 of the connecting member 101. The protrusion 135 protrudes from the peripheral edge of the circumferential flange 134 of the connecting member 101.

  As described above, the lock flange 136 disposed substantially parallel to the longitudinal axis A includes the first and second lateral side surfaces 139 and 140. In the vicinity of the second lateral side surface 140 of the lock flange 136, the lock flange 136, in the illustrated embodiment, comprises a hook-like shape that, together with the lock flange 136, snaps to the male connection. A fold part 141 is provided to provide the connection. The second lateral side 140 of the lock flange is angled to the longitudinal axis A and continues to the fold tip 142 and further away from the longitudinal axis A and substantially parallel to the longitudinal axis A. Back, with a portion substantially transverse to the longitudinal axis A. As described above, the fold tip 142 faces the longitudinal axis A.

  The lock flange 136 of the connecting member 101 cooperates with the opening 114 of the outer case 102 as described above. As can be seen from FIG. 3, the connecting member includes two locking flanges 136 arranged to cooperate with the two openings 114 of the outer case 102. This cooperation will be described in detail with reference to FIG. 5 below.

  The connection member 101 is further provided with first and second barrier members 143 and 144 that intersect the longitudinal axis A. The first and second barrier members 143 and 144 each have a substantially disk shape, and include first and second lateral side surfaces 145, 146, 147, and 148, respectively. While disposed substantially parallel to each other, the gap between the second lateral side surface 146 of the first barrier member 143 and the first lateral side surface 147 of the second barrier member 144 is a puncture tip protection chamber 149. Form.

  As shown in FIG. 3, the second end 161 of the puncture member is attached to the connecting means 104, and the puncture member 105 partially passes through the first barrier member 143 and is aligned with the longitudinal axis A. It is possible to extend to the part protection chamber 149. The puncture tip portion 163 of the puncture member 105 is disposed in the puncture tip portion protection chamber 149. The outlet opening 164 of the puncture member 105 is located at least partially inside the first barrier member 143 so as to provide a protective lid for the outlet opening 164 of the puncture member 105. However, the puncture tip 163 may be located completely inside the first barrier member 143 or completely inside the puncture tip protection chamber 149.

  Although the first and second barrier members 143, 144 have been described as two separate barrier members, the two separate barrier members include one barrier member with a puncture tip protection chamber, or a puncture tip protection chamber. It can be replaced with a barrier member that does not have it.

  In one embodiment, the puncture member protection device includes a puncture member, the puncture member includes an opening for fluid in the vicinity of the puncture tip, at least one barrier member is disposed in the puncture member protection device, and the barrier member includes: The fluid opening of the puncture member is completely surrounded by the barrier member so as to provide a fluid leakage protection device for the puncture member protection device. The puncture member protection device is preferably a female puncture protection device.

  As described above, the outer case 102 can be rotated between the first position and the second position. When the outer case 102 is in the first position, the male connecting portion is connected to the connecting member by a snap-type connection. 101 can be attached. In the first position, the male connection member may be released from the snap-type connection, but such removal requires some force over the snap-type connection. When the outer case 102 is in the second position, the lock flange 136 of the connecting member 101 is removed from the opening 114 of the outer case 102, as will be described in more detail below.

  In FIG. 3, the lock ring 103 is disposed along the circumference of the outer side surface 113 of the outer case 102, and is placed between the stop flange 127 of the outer case 102 and the connecting means 104. The connecting means 104 is attached in the vicinity of the first side surface 110 of the outer case 102.

  4A and 4B, the male connecting portion will be described in more detail. The male connection part can form a fixed or temporary connection part to a fluid container such as an infusion bag, an infusion line, etc. by, for example, a luer lock, spike device, welding means, molding or adhesive means. The male connector 200 includes a longitudinal cylindrical body 201 having a longitudinal axis C. The male connector 200 further includes first and second side surfaces 202 and 203 and outer and inner side surfaces 204 and 205. A lateral lock flange 206 is disposed on the first side surface 202 of the male coupling part 200. The lateral lock flange 206 extends along the peripheral edge of the outer side surface 204 of the male coupling part 200 and cooperates with the lock flange 136 of the coupling member 101.

In the exemplary embodiment of the male coupling part 200, the peripheral wall 207 surrounds the first end 202 of the male coupling part 200 as shown in FIG. In order to provide a stable and rigid connection between the parts and to provide a protective wall against negative treatments such as contact, which may damage the barrier member 208, for example, the peripheral wall 207 is connected to the connecting member after connection. 101 is arranged so as to at least partly surround at least a part of the second barrier member 144.
The barrier member 208 is disposed at the central portion of the first side surface 202 of the male coupling member 200 that intersects the longitudinal axis C. The barrier member 208 of the male connecting portion 200 provides a double barrier member that is connected together with the second barrier member 144 of the connecting member 101 after assembly with the female puncture member protection device 100. A fluid communication channel 210 (not shown) formed by the inner side surface 205 extends from the barrier member 208 of the male coupling portion 200 to the second side surface 203 of the male coupling portion 200.

The male coupling part 200 may further be provided with at least one rotation grip protrusion.
In the illustrated embodiment, the male coupling part 200 is provided with three rotating grip protrusions 209. The rotating grip protrusion 209 is disposed on the outer surface of the peripheral wall 207 and allows the rotating grip protrusion 209 to interact with the inner side surface 132 of the connecting member 101. The three rotating grip protrusions 209 allow good grip and prevent the two or more rotating grip protrusions 209 from being located on the lock flange 136 of the connecting member 101. It spreads symmetrically along. They are also present substantially along the longitudinal axis C along at least a part of the peripheral wall 207.

  In this case, the male connecting portion 200 is provided with a rotating grip protrusion, and a corresponding rotating grip groove (not shown) is preferably provided on the inner side surface of the connecting member. The number of the rotating grip protrusions 209 on the male connecting portion 200 may be 1 to 20, preferably 2 to 10, more preferably 3 to 8, and other than the peripheral wall 207 or the connecting member 200. It spreads symmetrically along the appropriate part. The rotational grip grooves also usually extend symmetrically along the inner side surface 132 of the connecting member 101, but the number thereof may be 1 to 19, preferably 1 to 9, more preferably 2 to 7. It is a piece. The number of rotating grip protrusions 209 is most preferably larger than the number of rotating grip grooves, and is preferably 1 or more.

  The purpose of the rotating grip protrusion 209 is to prevent the connecting member 101 from rotating with respect to the male connecting part 200 after assembly, thereby sequentially providing safe rotation for the outer case 102. As a result, the male connecting portion increases rotational friction between the female piercing member protection device and particularly the connecting member after assembly.

  In FIG. 5, the assembly of the female puncture member protecting apparatus 100 and the male coupling part 200 and their cooperation will be described. As described above, the outer case 102 can rotate between the first position and the second position. In the second position, the lock flange 136 of the connecting member 101 is removed from the opening 114 of the outer case 102. FIG. 5 shows the outer case 102 after being rotated to the second position.

As shown in FIG. 5, the male coupling part 200 is inserted into the female puncture member protection device 100.
When the male coupling part 200 is inserted, the lock flange 136 is slightly deformed in the radial direction with respect to the longitudinal axis A to give a gap to the male coupling part 200. The fold 141 is initially disengaged by the lateral lock flange 206, but when the fold tip 142 passes, the lock flange 136 returns to the normal position, thereby holding the male coupling 200 firmly.

  When the outer case 102 rotates to its second position and the opening 114 is disengaged from the lock flange 136, the lock flange 136 is not substantially deformable radially with respect to the longitudinal axis A. As a result, the male connecting portion 200 is efficiently prevented from being disconnected from the connecting member 101 and the female puncture member protecting apparatus 100, thereby establishing a safe and firm connection. During the transfer, the fluid container is mistakenly disconnected to prevent the puncture member from being exposed. The coupling member 101 is still in the inoperative position, i.e., the piercing member has not penetrated the barrier members 144 and 208 to provide fluid communication.

  In FIG. 6, the male connecting member 101 is located at the operating position. As shown in the figure, both the first and second barrier members 143 and 144 are penetrated by the puncture member 105, and the puncture tip portion 163 reaches the inside of the fluid communication channel 210 of the male connection portion 200. . The connecting member 101 is in the operating position at this point.

  At this time, the lock ring 103 disposed along the circumference of the outer surface 113 of the outer case 102 rotates between a first position (shown in FIGS. 5 and 6) and a second position (shown in FIG. 7). be able to. While the lock ring is in the unlocked position, the connecting member 101 can slide between the actuated position (shown in FIG. 6) and the non-actuated position (shown in FIG. 5), but the lock ring 103 is in the locked position. , The connecting member 101 becomes substantially non-slidable between the operating position (shown in FIG. 6) and the non-operating position (shown in FIG. 5). The locking mechanism of the lock ring 103 is provided by the locking protrusion 154 as described above.

  The locking protrusion 154 that protrudes at least partially from the inner surface 151 of the lock ring 103 between the first and second side surfaces 152, 153 is part of the F-shaped groove system as described above. Yes. More specifically, the lock protrusion 154 passes through the connecting member lock groove 125 extending vertically from the straight groove 120 of the outer case 102. As shown in FIGS. 3, 5 and 6, the locking protrusion 154 is located in the connecting member locking groove 125, but is out of the linear groove 120 so that the connecting member 101 can reach its operating position. In FIG. 7, it is efficient to move the connecting member 101 from the operating position to the non-operating position by rotating the lock ring 103 and moving to the connecting member lock groove 125 so that the lock protrusion 154 is positioned in the linear groove 120. Is preventing.

  The lock ring 103 or the lock protrusion 154 may further be provided with a biasing means (not shown) such as a spring that biases the lock protrusion 154 toward the linear groove 120 so as to provide an automatic locking mechanism. For example, by forming an angled surface with respect to the actuating and non-actuating positioning groove 126 of the outer case 102, the locking protrusion 154 automatically activates the connecting member 101 when the locking protrusion 154 is properly formed. Lock in position. While the connecting member 101 moves to the operating position, the lock protrusion is pushed out, but when the connecting member 101 passes the lock protrusion 154, the biasing means biases the lock protrusion 154 back into the linear groove 120, This effectively prevents the connecting member 101 from returning to its inoperative position. Therefore, the female piercing member protection device includes, for example, a manual second lock device in which the user himself / herself needs to move the lock ring 103 to the lock position, or an automatic second device in which the lock ring 103 is automatically positioned in the lock position. A locking device can be arranged.

  It should be noted that the above features can be combined in various ways, unless clearly inappropriate.

Claims (7)

A male coupling portion for coupling with a female puncture member protection device, a longitudinal cylindrical body having a longitudinal axis (C), first and second side surfaces, outer and inner side surfaces, and the first side surface A lateral lock flange located at the center of the first side of the male coupling member, the barrier member intersecting the longitudinal axis (C), and the fluid communication channel from the barrier member of the male coupling portion to the male Extending to the second side of the connection,
The male coupling portion includes at least one rotating grip groove of the female puncture member protection device to provide further rotational friction between the peripheral wall surrounding the first side surface and the female puncture member protection device after assembly. And at least one rotating grip protrusion disposed on the peripheral wall, wherein the number of the at least one rotating grip protrusion is greater than the number of the at least one rotating grip groove. Characteristic male connection part.   The male connector according to claim 1, wherein the male connector includes at least three rotating grip protrusions.   The male coupling part according to claim 1, wherein the at least one rotating grip protrusion is parallel to the longitudinal axis (C).   The male connection part according to claim 1, wherein the fluid communication channel is formed by an inner surface of a cylindrical main body. The male coupling part according to claim 1 , wherein the lateral lock flange extends along a peripheral edge of an outer surface of the male coupling part.   2. The male connection part according to claim 1, wherein the peripheral wall surrounds the second barrier member of the female puncture member protection device after the connection between the male connection part and the female puncture member protection device.   The male connection part according to claim 2, wherein the at least three rotary grip protrusions are arranged symmetrically along an outer surface of the peripheral wall.

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