JP6982751B2 - Connector system - Google Patents

Description

The present invention relates to a connector system comprising a male connector and a mesconeta connected to the male connector.

In recent years, anti-cancer drug treatment has been increasing with the increase in the number of cancer patients, and anti-cancer drug exposure measures are taken to prevent unintentional exposure of medical personnel in the handling of this anti-cancer drug. Is an issue.

When performing such anticancer drug treatment, a dispensing step of adding the anticancer drug to the infusion bag is required. For example, a solution in a syringe is injected into a vial to provide an anticancer drug in the bottle. Is dissolved or diluted, the solution is returned to the syringe, the vial and the infusion bag are exchanged from the syringe, and the solution is transferred to the infusion bag.

Conventionally, a connector system has been known in which a male connector is connected to a syringe and a female connector is connected to a vial and an infusion bag in order to prevent exposure to an anticancer drug (drug) in the above dispensing process. (For example, see Patent Document 1).

Japanese Patent Publication No. 2016-535636

This conventional connector system includes a cylindrical male connector and a female connector that is inserted into the lower end of the male connector. The male connector includes a lid portion provided at the upper end of the male connector, a needle tube provided downward on the lid portion, a male side valve portion slidably provided in the male connector, and the male side. It is equipped with a compression spring provided between the valve portion and the lid portion to urge the male side valve portion downward. The female connector is formed in a cylindrical shape, and a female side valve portion is provided at the upper end thereof.

Before connecting the female connector to the male connector, the male side valve portion is located below the needle tube tip so that the needle tube tip is not exposed to the outside of the male connector. When connecting the male connector to the female connector, insert the female connector into the male connector, push the male side valve part with the tip of the female connector, and until the needle tube tip penetrates the male side valve part and the female side valve part. By pushing the female connector into the male connector, the female connector is connected to the male connector.

After transferring the drug solution, disconnect the female connector from the male connector. At this time, the needle tube is pulled out from the female side valve portion.

However, since the female side valve portion is penetrated by the needle tube to form a through hole, when the needle tube is pulled out from the female side valve portion, the chemical solution remaining in the needle tube may come out from the upper surface of the female side valve portion. Alternatively, it may vaporize and leak to the outside.

In view of the above points, it is an object of the present invention to provide a connector system capable of improving the sealing property of a chemical solution even after the female connector is removed from the male connector.

[1] In order to achieve the above object, the connector system of the present invention is used.
It has a male connector that can be attached to a medical container that can store chemicals, and a female connector that is connected to the male connector from below and can be attached to another medical container that can store chemicals, and is shielded from the outside air. In a connector system for transferring the chemical solution between the medical containers.
The male connector is
A cylindrical male body whose upper part is closed by a lid,
It communicates with the medical container through a through hole provided in the lid portion, extends along the axis of the male side main body portion, and is relative to the female connector connected to the male side main body portion from below. With a needle tube that can be raised and lowered
The male side main body portion is provided so as to extend along the axis line, and is provided with a needle tube tube portion that surrounds the outer circumference of the needle tube at a distance and can be raised and lowered relative to the female connector.
The female connector is
At the bottom, a tubular female-side main body to which the other medical container can be attached,
A first valve portion provided on the upper part of the female side main body portion and having a slit that can be opened and closed by pushing the needle tube cylinder portion into a surface having elastic force and orthogonal to the axis line.
It is provided inside the female side main body portion, is provided below the first valve portion, and is provided with a second valve portion that can be penetrated by the needle tube.
The needle tube tube portion stores at least the tip of the needle tube when the needle tube tube portion and the needle tube are in the raised position, and pushes the first valve portion with the tip of the needle tube housed. It is possible to descend to the open position,
The needle tube is characterized in that it can descend to a position penetrating the second valve portion.

According to the present invention, when the female connector is connected to the male connector, the needle tube tube portion and the needle tube are placed in an raised position so that the outer periphery of the needle tube is surrounded by a distance from the tip of the needle tube. Can be stored, so the tip of the needle tube can be prevented from being exposed to the outside.
Next, when the needle tube tube portion containing the tip of the needle tube is lowered to a position where the first valve portion of the female connector is pushed open, the slit of the first valve portion provided in the upper part of the female side main body portion becomes the needle tube. It is opened by pushing the cylinder part.
Next, when the needle tube housed in the needle tube portion is lowered to a position where it penetrates the second valve portion, the second valve portion arranged below the first valve portion is penetrated by the needle tube.
Thereby, according to the connector system of the present invention, the chemical solution can be transferred between the medical containers in a state of being shielded from the outside air.
On the contrary, according to the present invention, when the female connector is removed from the male connector, the needle tube can be pulled up from the second valve portion and stored in the needle tube portion by raising the needle tube.
Next, the needle tube cylinder portion containing the tip of the needle tube can be pulled out from the first valve portion by raising it from the position pushed into the slit of the first valve portion, whereby the slit of the first valve portion can be pulled out. Is released from the pressure of the needle tube tube and closes by its own elastic force.
Therefore, since the needle tube passes through the first valve portion in a state of being housed in the needle tube portion, the needle tube does not come into contact with the first valve portion. Therefore, even if the chemical solution adheres to the needle tube, the chemical solution does not move to the upper surface of the first valve portion and adhere to the needle tube.
Further, even if the chemical solution adheres to the upper surface of the second valve portion when the needle tube is pulled out from the second valve portion, the slit of the first valve portion closes above the chemical solution, so that the chemical solution vaporizes and is outside the female connector. It can be prevented from being exposed to.
As described above, according to the connector system of the present invention, the sealing property of the chemical solution can be improved.

[2] Further, in the present invention, in the female connector, the second valve portion is arranged so as to be separated from the first valve portion, and the female connector is surrounded by the female side main body portion, the first valve portion, and the second valve portion. It is preferable that the broken space is formed.

According to such a configuration, in the female connector, the second valve portion is arranged so as to be separated from the first valve portion, so that a space surrounded by the female side main body portion, the first valve portion and the second valve portion is formed. Therefore, when the slit of the first valve portion is pushed open by the needle tube tube portion, the slit is housed in the space and the slit does not come into contact with the second valve portion. Therefore, even if the chemical solution adheres to the upper surface of the second valve portion when the needle tube is pulled out from the second valve portion, the chemical solution is prevented from adhering to the slit, and the sealing property of the chemical solution is further improved. be able to.

[3] Further, in the present invention, the first valve portion is a female side main body portion when the needle tube tube portion is pushed into the first valve portion on the back surface of each of the first valve portions. It is preferable that a protrusion that abuts on the inner wall is provided.

According to this configuration, when the needle tube tube portion is pushed into the first valve portion, the first valve portion is bent downward so as to separate from the slit, and the protrusion on the back surface of the first valve portion is the female side main body portion. It abuts on the inner wall. This protrusion is sandwiched between the inner wall of the female side main body and the needle tube tube, and there is no gap between the inner wall of the female side main body and the needle tube tube. Then, since the elasticity of the protrusion urges the needle tube cylinder portion to the axis side of the main body portion at the first valve portion, the needle tube cylinder portion can be suppressed so as not to move. As a result, the needle tube can be stably inserted and removed.

[4] Further, in the present invention, the female connector is provided inside the female side main body portion below the first valve portion and has a guide receiving portion for guiding the tip of the needle tube cylinder portion toward the axis line side. It is preferable to have a convex portion provided on the upper surface of the second valve portion and fitted to the lower end portion of the needle tube cylinder portion.

According to this configuration, the tip of the needle tube tube is guided toward the axis by the guide receiving portion, and the lower end of the needle tube tube is fitted to the convex portion of the second valve portion, so that the tip of the needle tube tube is guided. Positioned by the receiving portion and the convex portion, the needle tube tube portion can be made more immobile. As a result, the lower end of the needle tube cylinder can be positioned.

[5] Further, in the present invention,
The male side main body portion is provided with a slidably fitted upper cylinder portion on the upper side of the middle cylinder portion and a slidably fitted lower cylinder portion on the lower side of the middle cylinder portion. It is configured to be stretchable,
The lid portion is provided on the upper portion of the upper cylinder portion, and the lid portion is provided.
The needle tube portion is formed in the middle cylinder portion so as to surround the outer periphery of the tip of the needle tube at a distance when the upper cylinder portion and the middle cylinder portion are extended.
It is preferable that the lower cylinder portion has a mounting portion for attaching the female connector while separately surrounding the tip of the needle tube cylinder portion when the upper cylinder portion or the lower cylinder portion is extended.

According to such a configuration, the male side main body portion can be expanded and contracted in two stages with a simple configuration by the upper cylinder portion, the middle cylinder portion, and the lower cylinder portion. Further, since the needle tube portion is formed in the middle cylinder portion so as to surround the outer periphery of the tip of the needle tube at a distance when the upper cylinder portion and the middle cylinder portion are extended, the upper cylinder portion and the middle cylinder portion are formed. The tip of the needle tube can be stored in the tube part for the needle tube simply by extending the portion. Further, since the lower cylinder portion has a mounting portion, the female connector can be easily mounted from below.

[6] Further, in the present invention,
The female connector has a cylindrical insertion portion that protrudes upward to the upper part of the female side main body portion and is formed to have a diameter smaller than the outer diameter of the female side main body portion, and laterally from the upper portion of the insertion portion. It is preferable to have a pair of pins that project to the mounting portion and fit into the mounting portion.

According to this configuration, an insertion portion having a diameter smaller than the outer diameter of the female side main body portion is formed so as to project upward, and a pair of pins project sideways from the upper portion of the insertion portion. The female connector can be attached to the male connector simply by inserting the insertion part into the attachment part and locking the pair of pins to the attachment part.

The perspective view which shows the connector system of this embodiment. FIG. 2 is a sectional view taken along line II-II showing the male connector of FIG. The exploded perspective view which shows the closing mechanism of this embodiment. The perspective view which shows the closing mechanism of this embodiment. FIG. 6 is a sectional view taken along line VV showing the female connector of FIG. FIG. 6A is an operation diagram showing a state before the pin is hooked on the vertical groove and the inner cylinder vertical groove. FIG. 6B is an operation diagram showing a state before the pin is hooked on the vertical groove and the vertical groove of the inner cylinder to rotate the female connector. FIG. 6C is an operation diagram showing a state in which the female connector is rotated and the pin is locked in the lateral groove. FIG. 7A is an action diagram showing a state in which the door portion is closed. FIG. 7B is an operation diagram showing a state in which the inner cylinder portion rotates a little and the door portion is in the process of opening. FIG. 7C is an operation diagram showing a state in which the door portion is open. FIG. 8A is an operation diagram showing a state before connecting the female connector to the male connector. FIG. 8B is an operation diagram showing a state in which the insertion portion of the female connector is inserted into the inner cylinder portion of the male connector. FIG. 8C is an action diagram showing a state in which the door portion is open. FIG. 9A is an operation diagram showing a state in which the needle tube tube portion is inserted into the opening of the female connector. FIG. 9B is an operation diagram showing a state in which the needle tube is passed through the second valve of the female connector. FIG. 9C is an operation diagram showing a state in which the needle tube and the tube portion for the needle tube are returned to the inside of the male connector. It is sectional drawing of the main part in the state which the female connector is connected to the male connector of this embodiment.

The connector system 1 of the embodiment of the present invention will be described in detail with reference to the drawings. As shown in FIG. 1, the connector system 1 is for transferring a chemical solution between medical containers in a state of being shielded from the outside air. The connector system 1 includes a male connector 10 attached to a medical container capable of storing a drug solution, and a female connector 50 connected to the male connector 10 and attached to another medical container capable of storing the drug solution. The male connector 10 and the female connector 50 are made of resin.

As shown in FIGS. 1 and 2, the male connector 10 has a tubular male body portion 11, a lid portion 12 that closes the upper end portion of the male side main body portion 11, and a lower end portion of the male side main body portion 11. It is provided with an opening 13 formed in the above and to which a female connector is connected, and a terminal portion 2 rotatably provided on the lid portion 12. The terminal portion 2 is formed with a terminal portion through hole 2a penetrating in the axial direction of the male side main body portion 11, and a tube (not shown) for guiding physiological saline or the like from the infusion bag is connected to the terminal portion 2.

The male side main body portion 11 includes a tubular upper cylinder portion 14 whose upper end is closed by a lid portion 12, and a middle cylinder portion 15 provided on the upper cylinder portion 14 so as to be slidable in the axial direction. The cylinder portion 15 is provided with a lower cylinder portion 16 slidably provided in the axial direction, and a closing mechanism 30 for closing the lower portion of the lower cylinder portion 16 so as to be openable and closable. The male connector 10 includes an upper cylinder portion 14 slidably fitted on the upper side of the middle cylinder portion 15 and a lower cylinder portion 16 slidably fitted on the lower side of the middle cylinder portion 15. It is configured to be expandable and contractible in stages.

The closing mechanism 30 includes a cylindrical outer cylinder portion 31 and an inner cylinder portion 32 that can rotate along the inner circumference of the outer cylinder portion 31. At the lower end of the outer cylinder portion 31, a retaining 33 is provided to prevent the female connector 50 from coming off the male connector 10. In the lower end of the inner cylinder 32, a groove for fixing the female connector 50 to the inner cylinder 32 so as to restrict the movement of the female connector 50 in the circumferential direction in order to rotate the inner cylinder 32 together with the female connector 50. A fixed portion 34 is provided. In this way, the female connector 50 can be attached to the closing mechanism 30 by the retaining 33 and the fixing portion 34. The closing mechanism 30 is also a mounting portion for attaching the female connector 50.

The female connector 50 includes a tubular female-side main body 51 and a cylindrical insertion portion 52 formed into a diameter smaller than the outer diameter of the female-side main body 51 and inserted into the inner tubular portion 32 of the male connector 10. A pair of pins 53 that protrude laterally from the insertion portion 52 and fit into the retaining 33 of the outer cylinder portion 31 and the fixing portion 34 of the inner cylinder portion 32, and the upper end of the insertion portion 52 are closed. It includes an end portion 54, an opening 55 formed in the center of the end portion, and a first valve portion 56 that opens and closes the opening 55.

Hereinafter, a specific configuration of the male connector 10 will be described.
A lid portion 12 is integrally formed on the upper cylinder portion 14. In the lid portion 12, a connecting portion 17 is formed on the upper surface 12a along the axis of the male side main body portion 11, and a needle tube fixing portion 18a is formed in the center of the lower surface 12b. The needle tube fixing portion 18a is formed with a through hole (hereinafter referred to as a lid through hole) 18 into which the needle tube 3 is inserted and fixed. The needle tube 3 communicates with the medical container through the lid through hole 18 and extends along the axis of the upper cylinder portion 14.

The connection portion 17 is provided with an O-ring 19 into which a part of the terminal portion 2 is inserted, and a pressing member 21 for pressing the O-ring 19.

The upper cylinder portion 14 has an upper cylinder locking portion 22 formed so as to project inward at the lower portion, an upper cylinder slit 14a formed so as to cut upward from the lower end portion, and protrude outward to the lower portion. It is provided with a claw portion 14b formed so as to be swingable.

The middle cylinder portion 15 has a middle cylinder flange portion 23 formed so as to project outward from the upper portion, a middle cylinder locking portion 24 formed to protrude inward to the lower portion, and an upward portion from the lower end portion. It is provided with a middle cylinder slit 15a formed so as to cut.

Further, the middle cylinder portion 15 has a top plate portion 27 formed in the upper portion and continuous with the middle cylinder flange portion 23, a top plate through hole 27a formed in the center of the top plate portion 27, and the top plate through hole 27a. It is provided with a needle tube tube 28 formed so as to extend downward from the edge of the needle tube 3 and surrounding the outer peripheral direction of the needle tube 3, and a needle tube opening 28a formed at the tip of the needle tube tube portion 28 through which the needle tube 3 can pass. There is. The tip of the needle tube cylinder 28 is provided with a rubber member 29 that can be stored so as to pierce the tip of the needle tube 3. The needle tube portion 28 extends along the axis of the male side main body portion 11 and surrounds the outer periphery of the tip of the needle tube 3 apart from the outer periphery when the upper cylinder portion 14 and the middle cylinder portion 15 are extended.

The lower cylinder portion 16 has a lower cylinder flange portion 25 formed so as to project outward from the upper portion of the lower cylinder portion 16 and a lower cylinder portion 16 formed to protrude outward from the lower portion of the lower cylinder portion 16. A cylinder locking portion 26 and a lower cylinder slit 16a formed in the lower cylinder portion 16 so as to cut upward from the lower end portion are provided. Then, when the upper cylinder portion 14 to the lower cylinder portion 16 is extended, the lower cylinder portion 16 surrounds the tip of the needle tube cylinder portion 28 at a distance, and the closing mechanism (mounting portion) 30 for attaching the female connector 50 is attached. Is provided.

As shown in FIGS. 2 to 4, the closing mechanism 30 has a cylindrical outer cylinder portion 31, an inner cylinder portion 32 that is relatively movable along the inner circumference of the outer cylinder portion 31, and an outer cylinder portion 31. A pair of door portions 41 that are displaced according to the relative movement of the inner cylinder portion 32 to open and close the outer cylinder portion 31 or the lower portion of the inner cylinder portion 32 are provided. In the present embodiment, the relative movement of the inner cylinder portion 32 with respect to the outer cylinder portion 31 is the rotation of the inner cylinder portion 32 with respect to the outer cylinder portion 31.

The outer cylinder portion 31 is formed so as to penetrate the outer cylinder flange portion 31a formed at the upper end portion of the outer cylinder portion 31 so as to project outward and inward, and the side wall of the upper portion of the outer cylinder portion 31. It is provided with a rectangular fixing hole 31b and a retaining 33 formed so as to cut out the lower side wall of the outer cylinder portion 31 in an L-shape in a side view.

The disk suspension portion 37 includes an upper disk portion 35 formed in an annular shape, a pair of suspension portions 36 formed so as to hang downward from the upper disk portion 35, and the suspension portion 36. 36a formed on the lower surface of the disk, a disk through hole 35a formed so as to vertically penetrate the center of the upper disk portion 35, and an elastic disc through hole 35a provided at the edge of the disk through hole 35a. It is provided with an annular rubber 35b formed in an annular shape and a claw 35c formed on the outer periphery of the upper disk portion 35.

The base portion 38 has an annular plate portion 39 formed in an annular shape, a pair of guide rails 42 protruding upward from the annular plate portion 39, and an annular plate portion 39 extending upward from the outer side of the guide rail 42. It is provided with a pair of pillar portions 43. A through hole 39a is formed in the center of the annular plate portion 39, and a pair of pillar portions 43 extend in parallel so as to sandwich the through hole 39a.

The inner cylinder portion 32 includes a pair of arms 44 formed on the inner circumference of the inner cylinder portion 32, a support hole 44a formed so as to vertically penetrate the tip portion of the arm 44, and an inner cylinder portion. The side wall of 32 is provided with a pair of notches 48 formed in a rectangular shape. The arm 44 extends from one end of the notch 48 in the circumferential direction along the notch 48, then bends in the inner peripheral direction and further extends, forming a substantially L-shape as a whole. The notch 48 is formed so as to accommodate a part of the arm 44 when the arm 44 is expanded, as will be described later.

The door portion 41 has a half-moon shape in a plan view, a rise pin 45 formed so as to rise upward at the end of the upper surface, and a half-moon-shaped door elastic portion 46 provided on the lower surface and having elasticity. The lower surface is provided with a pair of groove portions 47 formed so as to fit into the pair of guide rails 42, respectively.

The assembly of each component in the male connector 10 described above and the operation between the components will be described.
In the male side main body portion 11, the middle cylinder portion 15 is slidably attached to the inside of the upper cylinder portion 14 in the vertical direction. The sliding of the middle cylinder portion 15 is restricted by the middle cylinder flange portion 23 coming into contact with the upper cylinder locking portion 22. The lower cylinder portion 16 is slidably attached to the inside of the middle cylinder portion 15 in the vertical direction. The sliding of the lower cylinder portion 16 is regulated by the lower cylinder flange portion 25 coming into contact with the middle cylinder locking portion 24.
Further, the closing mechanism 30 is attached by sandwiching the lower cylinder locking portion 26 with respect to the lower cylinder portion 16 between the inside of the outer cylinder flange portion 31a and the upper disk portion 35.

With such a configuration, the male side main body portion 11 can be expanded and contracted up and down, and in the longest state, the tip of the needle tube 3 attached to the upper cylinder portion 14 is provided in the middle cylinder portion 15. It is in a state of being pierced into the rubber member 29 and stored. Further, in the shortest state, the male side main body 11 is kept in a short state by locking the claw portion 14b of the upper cylinder portion 14 to the outside of the outer cylinder flange portion 31a. be able to.

In the closing mechanism 30, the disk suspension portion 37 is attached to the outer cylinder portion 31 by inserting the disk suspension portion 37 into the outer cylinder portion 31 from below and locking the claw 35c to the fixing hole 31b.
Next, the inner cylinder portion 32 and the base portion 38 are sequentially inserted into the outer cylinder portion 31 from below, and the pillar portion 43 of the base portion 38 is inserted into the hole 36a of the hanging portion 36 attached to the outer cylinder portion 31. Is press-fitted.

At this time, the door portion 41 is attached in advance with the riser pin 45 inserted into the support hole 44a of the arm 44 provided in the inner cylinder portion 32, and the groove portion 47 is fitted into the guide rail 42. It is sealed by the base portion 38 in the state of being closed. Since the riser pin 45 is rotatable with respect to the support hole 44a of the arm 44, the door portion 41 can slide along the guide rail 42.

The door portion 41 is urged in the closing direction by the elastic force of the arm 44 provided in the inner cylinder portion 32, and the through hole 39a of the base portion 38 is closed by the door elastic portion 46 of the door portion 41. ..

Next, the retaining 33 of the male connector 10 and the fixing portion 34 of the female connector 50 will be described in detail.
As shown in FIGS. 2 to 4 and 6A, the retaining 33 of the outer cylinder portion 31 is formed from the lower end portion of the outer cylinder portion 31 along the axial direction from the vertical groove 33a and the upper end of the vertical groove 33a. It is composed of an L-shaped outer cylinder having an L-shaped side view formed by the lateral grooves 33b formed in the circumferential direction. That is, the retaining 33 is an outer cylinder L-shaped groove. The fixing portion 34 of the inner cylinder portion 32 is formed along the axial direction from the lower end portion of the inner cylinder portion 32, and is composed of an inner cylinder vertical groove 34a that overlaps the vertical groove 33a of the outer cylinder L-shaped groove 33.

Next, a specific configuration of the female connector 50 will be described.
As shown in FIGS. 1 and 5, the female connector 50 is provided at a lower portion of a tubular female-side main body 51 to which another medical container can be attached, and an upper portion of the female-side main body 51 and is orthogonal to an axis. A tubular portion that supports the first valve portion 56 inside the female side main body portion 51 and a first valve portion having a slit 56c that can be opened and closed by pushing the needle tube tubular portion 28 (see FIG. 2) into the surface to be formed. The valve support cylinder portion 57, the second valve portion 58 which is provided at the lower part inside the valve support cylinder portion 57 so as to be downwardly separated from the first valve portion 56 and closes the lower portion of the valve support cylinder portion 57, and the second valve portion 58. It is provided with a tubular female-side sub-cylinder portion 61 that is inserted from below the valve portion 58 into the inside of the female-side main body portion 51 and closes the lower portion of the female-side main body portion 51.

The female-side main body 51 has a cylindrical insertion portion 52 formed so as to project upward from the upper portion, a pair of pins 53 protruding laterally from the upper portion of the insertion portion, and an upper end of the insertion portion 52. It includes an end 54 formed to close and an opening 55 formed in the center of the end 54.

The first valve portion 56 has elasticity, and has a protrusion 56a formed on the back surface of each of the first valve portions 56 divided by a slit 56c from the center and protruding downward, and a valve support cylinder portion 57 formed on the outer peripheral portion. It is provided with a slit 56b extending downward along the inner wall of the.

The valve support cylinder portion 57 includes an upper end support portion 57a formed at an upper portion to support the first valve portion 56, a protruding portion 66 formed so as to protrude from an intermediate portion in the vertical direction toward an axial line, and the protruding portion. It is provided with a protruding portion through hole 66a formed in the central portion and a guide receiving portion 67 formed so as to project upward from the edge of the protruding portion through hole 66a.

The second valve portion 58 is elastic and includes a convex portion 68 formed so as to project upward on the upper surface, and an annular groove 69 formed so as to be annularly recessed on the lower surface.

The female side sub-cylinder portion 61 includes an annular sub-top plate portion 61a formed at the upper portion and supporting the valve support cylinder portion 57, and a communication inner cylinder portion 64 extending downward from the central opening of the sub-top plate portion 61a. The rib 62 formed on the outer periphery so as to extend in the vertical direction, the threaded portion 63 formed on the inner circumference, and the annular groove of the second valve portion 58 formed so as to project upward from the upper surface of the subtop plate portion 61a. It is provided with a valve lower support portion 65 that fits into 69.

The assembly of each component in the female connector 50 described above and the operation between the components will be described.
In the female connector 50, the first valve portion 56 and the valve support cylinder portion 57 are sequentially inserted into the female side main body portion 51 from below. With this, the first valve portion 56 is sandwiched between the valve support cylinder portion 57 and the end portion 54 of the female side main body portion 51.

Further, the second valve portion 58 and the female side sub-cylinder portion 61 are sequentially inserted into the female side main body portion 51 from below. With this, the second valve portion 58 is sandwiched between the valve lower side support portion 65 of the female side sub-cylinder portion 61 and the protruding portion 66 of the valve support cylinder portion 57. Further, the female-side sub-cylinder portion 61 is press-fitted into the female-side main body portion 51, and the lower end of the valve support cylinder portion 57 is supported by the sub-top plate portion 61a of the female-side sub-cylinder portion 61.

Further, the second valve portion 58 is arranged downwardly separated from the first valve portion 56, and a closed space is formed by the first valve portion 56, the valve support cylinder portion 57, and the second valve portion 58.

The actions of fixing and retaining the female connector 50 with respect to the male connector 10 described above will be described below.
As shown in FIG. 6A, the female connector 50 is moved as shown by the arrow (1), and the pin 53 is fitted into the vertical groove 33a and the inner cylinder vertical groove 34a.

For convenience, the description will be made assuming that the male connector 10 is fixed and the female connector 50 is moved, but the present invention is not limited to this, and the male connector 10 may be moved with respect to the fixed female connector 50, that is, male. Anything that moves the female connector 50 relative to the connector 10 may be used.

As shown in FIG. 6B, the female connector 50 is rotated as shown by the arrow (2), and the pin 53 is moved to the lateral groove 33b as shown by the arrow (3). At this time, in the male connector 10, the inner cylinder portion 32 rotates while the outer cylinder portion 31 is fixed.

As shown in FIG. 6C, the pin 53 abuts on the end of the lateral groove 33b, and the rotation of the female connector 50 is restricted. The pin 53 abuts on the lower side of the lateral groove 33b, and the downward movement of the pin 53 is restricted, so that the female connector 50 is fixed to the male connector 10 and is prevented from coming off.

When the female connector 50 is attached to the fixed portion 34 provided on the inner cylinder portion 32 in this way, the movement of the female connector 50 in the circumferential direction with respect to the inner cylinder portion 32 is restricted, so that the attached female connector 50 is attached to the outer cylinder. By rotating the inner cylinder portion 32 relative to the portion 31, the inner cylinder portion 32 can be easily rotated.

Next, the operation of the door portion 41 will be described.
Immediately after the female connector 50 (FIG. 6B) is connected to the male connector 10, as shown in FIG. 7A, the door portion 41 of the male connector 10 is in a closed state. By rotating the female connector 50 shown in FIG. 6B from here, the inner cylinder portion 32 is moved as shown by the arrow (4).

As a result, as shown in FIG. 7B, the arm 44 also rotates with the rotation of the inner cylinder portion 32, the raising pin 45 of the door portion 41 is pulled by the arm 44, and the door portion 41 begins to open. At this time, since the moving direction of the door portion 41 is regulated by the guide rail 42, the door portion 41 moves along the guide rail 42 as shown by the arrow (5), and the curved arm 44 is indicated by the arrow (6). It is deformed so that the curvature becomes smaller.

As shown in FIG. 7C, the door portion 41 is fully opened at the position where the rotation of the inner cylinder portion 32 is restricted, and the needle tube portion 28 (see FIG. 2) and the needle tube 3 are inserted into the through hole 39a. It will be possible. When the door portion 41 is open, the arm 44 is extended outward. Since the inner cylinder portion 32 is formed with a notch 48 for allowing the arm 44 to escape, it is possible to prevent the deformation spreading to the outside of the arm 44 from being hindered.

As described above, since the door portion 41 is supported by the arm 44 that urges the door portion 41 in the closing direction, the through hole 39a provided in the base portion 38 can be sealed. Then, when the inner cylinder portion 32 is rotated with respect to the outer cylinder portion 31, the door portion 41 is pulled by the arm 44 provided on the inner cylinder portion 32 and tries to rotate together with the inner cylinder portion 32. However, since the door portion 41 is guided by the guide rail 42 of the base portion 38 provided on the outer cylinder portion 31, the rotational movement of the door portion 41 is deformed by the elasticity of the arm 44 itself, and the guide rail is formed. It is converted into a sliding motion on a straight line along 42, and as a result, the door portion 41 moves above the through hole 39a from the state where the through hole 39a is closed to the outside of the through hole 39a, and the closing mechanism 30 is opened. Will be. Therefore, according to this configuration, the female connector 50 can be connected to the male connector 10 and the closing mechanism 30 can be opened by simply inserting the female connector 50 into the male connector 10 and rotating the female connector 50.

Next, a step of inserting the needle tube 3 into the female connector 50 will be described. For convenience, in FIG. 8, the female connector 50 is fixed and the male connector 10 is moved.
As shown in FIG. 8A, the male connector 10 is moved to the female connector 50 as shown by the arrow (7).
Then, as shown in FIG. 8B, the female connector 50 is inserted into the opening 13 of the male connector 10.

As shown in FIG. 8C, since the pin 53 of the female connector 50 is fitted in the fixed portion 34, the rotation of the inner cylinder portion 32 of the male connector 10 is restricted. The outer cylinder portion 31 of the male connector 10 is rotated as shown by the arrow (8) until the pin 53 abuts on the end portion of 33b (see FIG. 6C) to open the door portion 41.

When connecting the male connector 10 to the female connector 50, first, by extending the entire male connector 10, the tip of the needle tube 3 is surrounded by the needle tube cylinder 28, and the tip of the needle tube 28 is surrounded by the lower cylinder 16. In this state, the female connector 50 can be attached to the closing mechanism (mounting portion) 30 of the male connector 10 to prevent the needle tube 3 of the male connector 10 communicating with the medical container containing the chemical solution from being exposed to the outside. can do.

As shown in FIGS. 9A and 10, when the upper cylinder portion 14 and the middle cylinder portion 15 are lowered with respect to the lower cylinder portion 16 along the axis and the total length of the male connector 10 is shortened by the first stage, the middle cylinder portion 15 is formed. The needle tube cylinder portion 28 of the above passes through the through hole 39a. Further, the needle tube cylinder 28 protrudes from below the lower cylinder 16 and is pushed into the slit 56c of the first valve 56 to open the slit 56c, the tip of which abuts on the guide receiving portion 67.

As shown in FIGS. 9B and 10, when the upper cylinder portion 14 is lowered with respect to the middle cylinder portion 15 along the axis and the total length of the male connector 10 is shortened by the second stage, the lid portion 12 of the upper cylinder portion 14 is formed. The attached needle tube 3 penetrates the rubber member 29 (see FIG. 10) of the needle tube portion 28, and the needle tube 3 protrudes from the tip of the needle tube portion 28 and penetrates the second valve portion 58, whereby the needle tube 3 is penetrated. The tip of the is inserted into the female connector 50. With this, the vial bottle and the infusion bag can exchange the solution in which the anticancer drug is dissolved via the connector system 1, and the drug solution is transferred between the medical containers while being shielded from the outside air. be able to.

Next, a step of pulling out the needle tube 3 from the female connector 50 will be described.
As shown in FIG. 9C, after exchanging the solution or the like, first, the upper cylinder portion 14 is raised with respect to the middle cylinder portion 15, and the needle tube 3 attached to the upper cylinder portion 14 is moved from the second valve portion 58. It is pulled out and stored in the needle tube tube 28. As a result, the needle tube 3 is housed above the lower end of the needle tube portion 28. In this state, when the upper cylinder portion 14 and the middle cylinder portion 15 are raised with respect to the lower cylinder portion 16, the needle tube cylinder portion 28 is pulled out from the first valve portion 56, and the first valve portion 56 has its own elasticity. Closed. After that, the male connector 10 is rotated to close the door portion 41.

As a result, the door portion 41 is closed, so that the needle tube 3 can be confined in the closed space. The closed space is a space surrounded by the male side main body portion 11 (including the lid portion 12), the needle tube tube portion 28, and the door portion 41.

The needle tube 3 has a tubular male side main body 11 and a lid portion 12 that closes the upper end of the male side main body 11 above the female connector 50 connected to the opening 13 of the male side main body 11. It is arranged in a closed space formed by a closing mechanism 30 that closes the lower part of the male side main body 11 so as to be openable and closable. Then, the closing mechanism 30 is displaced according to the relative movement of the inner cylinder portion 32 with respect to the outer cylinder portion 31 constituting itself, and the lower door portion 41 opens and closes. Therefore, after opening the door portion 41, the needle tube 3 is moved downward to the female connector 50, and the drug solution is injected or the drug solution is injected from an infusion bag or the like connected to the connection portion 17 (see FIG. 2) provided on the lid portion 12. The dissolved / diluted drug solution can be returned to the infusion bag or the like.

Then, after returning the needle tube 3 to the original position, the inner cylinder portion 32 is moved in the direction opposite to the relative movement, and the door portion 41 is closed, so that the needle tube 3 can be stored in the closed space. ..

In other words, when the male connector 10 is removed from the female connector 50, the operation of contracting the male connector 10 and the reverse operation are performed in two stages, so that the needle tube 3 is first pulled out from the second valve portion 58 and the needle tube tube. It is surrounded by a portion 28, and the needle tube cylinder portion 28 is pulled out from the first valve portion 56 and stored in the lower cylinder portion 16.

Therefore, since the needle tube 3 does not come into contact with the first valve portion 56 on the upper surface of the female connector 50, the chemical solution remaining in the needle tube 3 does not adhere to the first valve portion 56. Further, since the slit 56c of the first valve portion 56 is closed by releasing the pressing of the needle tube tube portion 28, even if the chemical solution adheres to the upper surface of the second valve portion 58, the chemical solution is the main body on the female side. Since it is sealed in the space surrounded by the portion 51, the first valve portion 56, and the second valve portion 58, it is not exposed to the outside of the female connector even if it is vaporized. The female connector is for a needle tube because the second valve portion is arranged apart from the first valve portion to form a space surrounded by the female side main body portion, the first valve portion and the second valve portion. When the slit of the first valve portion is pushed open by the tubular portion, the slit 56c is housed in the space and the slit 56c does not come into contact with the second valve portion. Therefore, even if the chemical solution adheres to the upper surface of the second valve portion when the needle tube is pulled out from the second valve portion, it is possible to prevent the chemical solution from adhering to the slit 56c. As described above, according to the connector system 1 of the present invention, the sealing property of the chemical solution can be improved.

Further, when connecting the male connector 10 to the female connector 50, the needle tube cylinder portion 28 was moved to the female side main body portion 51 to push open the first valve portion 56, and then stored in the needle tube cylinder portion 28. Since the needle tube 3 penetrates the second valve portion 58, the needle tube 3 contacts only the second valve portion 58. On the contrary, when the male connector 10 is removed from the female connector 50, the needle tube 3 is pulled out from the second valve portion 58, the needle tube 3 is stored so as to be surrounded by the needle tube tube portion 28, and then the needle tube portion 28 is removed. Since it is pulled out from the first valve portion 56, the needle tube 3 does not come into contact with the first valve portion 56.

Therefore, the chemical solution remaining in the needle tube 3 does not adhere to the first valve portion 56. Further, the first valve portion 56 is divided from the center by a slit 56c (see FIG. 5) and has elasticity, so that when the needle tube cylinder portion 28 is pulled out, it returns to its original position and is closed. As a result, the chemical solution is not exposed to the outside of the female connector 50, and the sealing property of the drug can be improved even after use.

When the male connector 10 is connected to the female connector 50, the upper cylinder portion 14 and the middle cylinder portion 15 are lowered along the axis with respect to the lower cylinder portion 16, so that the needle tube portion 28 of the middle cylinder portion 15 is formed. When the first valve portion 56 is pushed open and further lowered after passing through the through hole 39a, the needle tube cylinder portion 28 comes into contact with the guide receiving portion 67 as shown in FIG. At this time, in the first valve portion 56, the first valve portion 56 divided from the central slit is bent downward, and the protrusion 56a is in contact with the hanging portion 56b, so that there is no so-called play. Therefore, the needle tube tube portion 28 can be firmly supported by the bent first valve portion 56.

Further, since the outer peripheral portion of the first valve portion 56 is sandwiched between the upper end portion 54 and the lower valve support cylinder portion 57, the first valve portion 56 is bent downward and pulled downward. However, the outer peripheral portion of the first valve portion 56 does not come off between the end portion 54 and the valve support cylinder portion 57.

Further, the tip of the needle tube cylinder 28 is guided toward the axis by the guide receiving portion 67, and the needle tube opening 28a of the needle tube cylinder 28 fits into the convex portion 68. Since the tip of the needle tube cylinder 28 is sandwiched between the guide receiving portion 67 and the convex portion 68, the needle tube cylinder 28 can be supported more firmly. Since the needle tube cylinder portion 28 can be suppressed so as not to move, the needle tube 3 can be stably inserted and removed, and the drug remaining at the tip of the needle tube 3 can be made difficult to scatter.

In the present embodiment, the door portion 41 is moved on the base portion 38 in the direction perpendicular to the axis of the male side main body portion 11, and the door portion 41 is opened and closed like a sliding door, but the configuration is not limited to this. The door portion 41 is provided on the male side main body portion 11 so as to be swingable via a hinge, a member that can move in the axial direction of the male side main body portion 11 is provided, and the door portion 41 is pushed by this member to push the door portion. The 41 may be opened and closed like a hinged door.

Further, the door portion 41 is provided on the outer cylinder portion 31 so as to be swingable via a hinge, the inner cylinder portion 32 is provided so as to be slidable with respect to the outer cylinder portion 31, and the inner cylinder portion 32 is pressed against the door portion 41. As a result, the door portion 41 may be opened and closed like a hinged door. As described above, as long as the door portion 41 for opening and closing the lower part of the male side main body portion 11, the outer cylinder portion 31 or the inner cylinder portion 32 is provided, the opening / closing direction of the door portion 41 does not matter.

Further, in the embodiment, the rubber member 29, the door elastic portion 46, the first valve portion 56 and the second valve portion 58 are made of an elastic synthetic resin, but the present invention is not limited to this, and rubber is used as long as it has elasticity. It doesn't matter if there is one.

Further, in the embodiment, the groove portion 47 of the door portion 41 is fitted to the guide rail 42 so that the door portion 41 moves linearly along the guide rail 42, but the present invention is not limited to this, and the door portion 41 is not limited to this. The door portion 41 may move linearly by fitting the whole between the guide rails 42. Further, although the number of door portions 41 is two, the number is not limited to this, and one or three door portions 41 may be used.

Further, in the embodiment, the female connector 50 is connected to the male connector 10, and when the slit 56c of the first valve portion 56 is pushed open by the needle tube portion 28, the needle tube 3 is lowered together with the needle tube portion 28. However, the present invention is not limited to this, and the needle tube portion 28 may be lowered first to push open the slit 56c of the first valve portion 56, and then the needle tube 3 may be lowered.

Further, in the embodiment, when the female connector 50 is removed from the male connector 10, the needle tube 3 penetrating the second valve portion 58 is pulled out from the second valve portion 58, and then the needle tube 3 is raised together with the needle tube portion 28. However, the configuration is not limited to this, and the needle tube 3 penetrating the second valve portion 58 is pulled out from the second valve portion 58 and raised as it is, and then the needle tube tube portion 28 is raised to raise the needle tube 3. It may be configured so as not to come into contact with the first valve portion 56.

1 Connector system 3 Needle tube 10 Male connector 11 Male side Main body 12 Lid 12a Upper surface 12b Lower surface 14 Upper cylinder 15 Middle cylinder 16 Lower cylinder 18 Through hole (cover through hole)
28 Needle tube tube 30 Closing mechanism (mounting part)
50 Female connector 51 Female side main body 56 1st valve 56a Protrusion 56c Slit 58 2nd valve 67 Guide receiving 68 Convex

Claims (6)

It has a male connector that can be attached to a medical container that can store chemicals, and a female connector that is connected to the male connector from below and can be attached to another medical container that can store chemicals, and is shielded from the outside air. In a connector system for transferring the chemical solution between the medical containers.
The male connector is
A cylindrical male body whose upper part is closed by a lid,
It communicates with the medical container through a through hole provided in the lid portion, extends along the axis of the male side main body portion, and is relative to the female connector connected to the male side main body portion from below. With a needle tube that can be raised and lowered
The male side main body portion is provided so as to extend along the axis line, and is provided with a needle tube tube portion that surrounds the outer circumference of the needle tube at a distance and can be raised and lowered relative to the female connector.
The female connector is
At the bottom, a tubular female-side main body to which the other medical container can be attached,
A first valve portion provided on the upper part of the female side main body portion and having a slit that can be opened and closed by pushing the needle tube cylinder portion into a surface having elastic force and orthogonal to the axis line.
It is provided inside the female side main body portion, is provided below the first valve portion, and is provided with a second valve portion that can be penetrated by the needle tube.
The needle tube tube portion stores at least the tip of the needle tube when the needle tube tube portion and the needle tube are in the raised position, and pushes the first valve portion with the tip of the needle tube housed. It is possible to descend to the open position,
A connector system characterized in that the needle tube can be lowered to a position penetrating the second valve portion. The connector system according to claim 1.
In the female connector, the second valve portion is arranged so as to be separated from the first valve portion.
A connector system characterized in that a space surrounded by the female side main body portion, the first valve portion, and the second valve portion is formed. The connector system according to claim 1 or 2.
The first valve portion has a protrusion formed on the back surface of each of the first valve portions divided by a slit and protruding downward, and a hanging portion extending downward from the back surface along the inner wall of the female side main body portion. Equipped with
A connector system in which the protrusion comes into contact with the hanging portion when the needle tube portion is pushed into the first valve portion. The connector system according to any one of claims 1 to 3.
The female connector is provided on the upper surface of the second valve portion and a guide receiving portion which is provided below the first valve portion inside the female side main body portion and guides the tip of the needle tube cylinder portion toward the axis line side. A connector system characterized by having a convex portion that fits into the lower end portion of the needle tube cylinder portion. The connector system according to any one of claims 1 to 4.
The male side main body portion is provided with a slidably fitted upper cylinder portion on the upper side of the middle cylinder portion and a slidably fitted lower cylinder portion on the lower side of the middle cylinder portion. It is configured to be stretchable,
The lid portion is provided on the upper portion of the upper cylinder portion, and the lid portion is provided.
The needle tube portion is formed in the middle cylinder portion so as to surround the outer periphery of the tip of the needle tube at a distance when the upper cylinder portion and the middle cylinder portion are extended.
The lower cylinder portion is characterized by having a mounting portion for attaching the female connector while separately surrounding the tip of the needle tube cylinder portion when the upper cylinder portion or the lower cylinder portion is extended. .. The connector system according to claim 5.
The female connector has a cylindrical insertion portion that protrudes upward to the upper part of the female side main body portion and is formed to have a diameter smaller than the outer diameter of the female side main body portion, and laterally from the upper portion of the insertion portion. A connector system comprising a pair of pins that project into the mounting portion and fit into the mounting portion.

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