Connector washer, washer adapter, and connector washing system

Abstract

To provide a technique which can more certainly wash a medical male connector.SOLUTION: A connector washer washing a medical male connector including a cylindrical male connector body through which a fluid passage passes in an axial direction and an approximately cylindrical coupler which is connected with the male connector body at the rear edge side of the male connector body and covers around the male connector body, comprises: a cleaning fluid jetting part which jets cleaning fluid from the front side of the medical male connector into the interior space of the medical male connector surrounded by a lateral face of the male connector body and an inner surface of the coupler; a housing part which accommodates the medical male connector; and a discharge part which is connected to the housing part and discharges to the outside, while the medical male connector is accommodated in the housing part, the cleaning fluid jetted into the interior space of the medical male connector. The cleaning fluid jetting part is arranged in a peripheral shape around the axis of the medical male connector accommodated in the housing part.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a connector cleaner for cleaning a connector for connecting a medical tube, a cleaner adapter used for the connector cleaner, and a connector cleaning system including these.

Background Art

[0002] Conventionally, as a connector for connecting a medical tube, in enteral nutrition applications, a connector is adopted in which the connector on the side connected to the patient is male and the connector on the side opposite to the patient is female. Due to the structure of such a connector, for example, a nutritional agent related to enteral nutrition may remain in the internal space of the male connector on the patient side. As a result, there is a risk of hygienic inconveniences such as the generation of bacteria in the male connector left in the state of being connected to the patient. In order to eliminate such risks, a technique for cleaning the male connector has been proposed (see, for example, Patent Document 1).

[0003] In the technique described in Patent Document 1, a syringe storing a cleaning liquid is connected to the upper side of the cleaning unit, and is jetted from a port of the cleaning unit into which the nozzle of this syringe is inserted, toward the tip of the male connector inserted into the cylindrical portion of the cleaning unit. The port from which the cleaning liquid is jetted is opened offset from the central axis of the cleaning unit into which the male connector is inserted, and the cleaning liquid is jetted toward the tip side of the male connector directly from this opening, or via a baffle plate formed with small holes that closes this opening.

[0004] The cleaning liquid jetted in this way flows in the circumferential direction along the inner surface of the cylindrical shape of the male connector to clean the inner surface of the male connector.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] However, there are various nutritional agents with viscosities ranging from low to high. Also, since the treatment time is long, the nutritional agent may adhere firmly and cannot be completely removed by the flow pressure of the cleaning liquid, resulting in the possibility of the nutritional agent remaining.

[0007] The present invention has been invented in view of the above circumstances, and an object thereof is to provide a technique that enables more reliably cleaning a medical male connector.

Means for Solving the Problems

[0008] In order to solve the above-described problems, the present invention adopts the following configuration. That is, a connector cleaner for cleaning a medical male connector having a cylindrical male connector body through which a fluid flow path penetrates axially, and a substantially cylindrical coupler connected to the male connector body on the rear end side of the male connector body and surrounding the male connector body, a cleaning liquid ejection part that ejects a cleaning liquid from the front of the medical male connector into the internal space of the medical male connector surrounded by the side surface of the male connector body and the inner surface of the coupler, a housing part that houses the medical male connector, communicating with the housing part, and in a state where the medical male connector is housed in the housing part, a discharge part that discharges the cleaning liquid ejected into the internal space of the medical male connector to the outside, is provided, wherein the cleaning liquid ejection part is arranged in a circumferential shape centered on the axis of the medical male connector housed in the housing part.

[0009] In a connector cleaner configured to eject a cleaning liquid from the front toward the internal space of a male medical connector having a coupler connected to the male connector body, by arranging a cleaning liquid ejection part for ejecting the cleaning liquid in a circumferential shape centered on the axis of the male medical connector, the cleaning liquid can be ejected evenly into the internal space, and the male medical connector can be cleaned more reliably.

[0010] The circumferential shape means a state where it is at a position having a constant diameter centered on the axis of the male medical connector. The diameter centered on the axis of the male medical connector is not limited to one, and may be plural. The number of cleaning liquid ejection parts is not limited, and includes a single cleaning liquid ejection part having an extension in the circumferential direction centered on the axis of the male medical connector, and a plurality of cleaning liquid ejection parts dispersed and arranged in the circumferential direction. Further, the plurality of cleaning liquid ejection parts may be arranged evenly in the circumferential direction, that is, separated at equal angles centered on the axis of the male medical connector.

[0011] Also, the present invention is A connector cleaner for cleaning a male medical connector having a substantially cylindrical coupler that is connected to the male connector body at the end side and surrounds the periphery of the male connector body, the connector cleaner including: a cleaning liquid ejection part for ejecting a cleaning liquid from the front of the male medical connector into the internal space of the male medical connector surrounded by the side surface of the male connector body and the inner surface of the coupler; a housing part for housing the male medical connector; and a discharge part that communicates with the housing part and discharges the cleaning liquid ejected into the internal space of the male medical connector to the outside when the male medical connector is housed in the housing part. The cleaning liquid ejection part is connected to a cleaner adapter arranged in a circumferential shape centered on the axis of the male medical connector housed in the housing part. The cleaner adapter is characterized by having a first connection part connected to the connector cleaner, a second connection part connected to a cleaning liquid supply source that supplies the cleaning liquid to the connector cleaner, and a cleaning liquid supply path through which the cleaning liquid supplied from the cleaning liquid supply source to the connector cleaner flows.

[0012] According to this, by ejecting the cleaning liquid from the cleaning liquid ejection part arranged circumferentially around the axis of the medical connector toward the internal space of the medical connector, the cleaning liquid is ejected evenly against the internal space, and a connector cleaner and a cleaning liquid supply source that can more surely clean the medical connector are connected, and a cleaner adapter having a cleaning liquid supply path through which the cleaning liquid supplied from the cleaning liquid supply source to the connector cleaner flows is provided, thereby improving the degree of freedom in designing the flow path for guiding the cleaning liquid to the cleaning liquid ejection part of the connector cleaner. That is, the cleaning liquid supply path can be appropriately designed as a flow path capable of efficiently guiding the cleaning liquid from the cleaning liquid supply source to the cleaning liquid ejection part arranged in the circumferential direction around the axis of the medical connector.

[0013] Further, by configuring the cleaner adapter having the cleaning liquid supply path to be connected to the connector cleaner and the cleaning liquid supply source, the connection with the connector cleaner and the cleaning liquid supply source can be released and each can be cleaned individually, so that cleaning can be performed easily and surely. Also, the usage mode can be set separately for the connector cleaner and the cleaner adapter. That is, it is also possible to use the connector cleaner for each patient to whom the medical connector is connected, and to use the cleaner adapter for a plurality of subjects. Furthermore, by designing the second connection part connected to the cleaning liquid supply source in correspondence with the specifications of the connection part with the cleaning liquid supply source or the cleaner adapter on the cleaning liquid supply source side, only the cleaner adapter can be exchanged according to the specifications of the connection part with the cleaning liquid supply source or the cleaner adapter on the cleaning liquid supply source side to clean the medical connector. As the cleaning liquid supply source, for example, a syringe or a cleaning liquid tank having a pressure pump can be used, but it is not limited thereto. Also, as the second connection part and the connection part on the cleaning liquid supply source side, various connection forms such as male type, female type, luer lock type, and luer taper type are applicable. Also, in the present invention,

[0014] Moreover, in the present invention, The cleaning liquid supply path may have a diameter-expanded portion whose inner diameter expands toward the end on the first connection portion side.

[0015] According to this, the cleaning liquid supplied from the cleaning liquid supply source can be efficiently guided to the cleaning liquid ejection portions arranged in the circumferential direction of the connector cleaner through the diameter-expanded portion whose inner diameter expands toward the end on the first connection portion side.

[0016] Also, in the present invention, The cleaning liquid supply path may have a small-diameter portion having an inner diameter smaller than the inner diameter at the end on the first connection portion side and the inner diameter at the end on the second connection portion side between the end on the first connection portion side and the end on the second connection portion side.

[0017] According to this, after using or cleaning the adapter for the cleaner, it becomes difficult for liquid to remain in the cleaning liquid supply path, so it is less likely to occur that a large amount of residual liquid drips outside after use.

[0018] Also, in the present invention, The first connection portion a seal member that holds the gap between the adapter for the cleaner and the connector cleaner in a liquid-tight manner, and connection means that is connected to the connector cleaner by rotating around the circumferential direction of the connection direction to the connector cleaner, and an operation portion that extends in the outer diameter direction around the second axis extending in the connection direction may be provided.

[0019] According to this, since the gap between the adapter for the cleaner and the connector cleaner is held in a liquid-tight manner by the seal member, leakage of the cleaning liquid or the like can be prevented. Also, since an operation portion that extends in the outer diameter direction around the second axis extending in the connection direction to the connector cleaner is provided, when connecting the adapter for the cleaner to the connector cleaner by rotating around the second axis direction, by rotating the adapter for the cleaner with the operation portion, it can be connected easily and surely.

[0020] Also, in the present invention, The second connection part may be rotatably coupled to the main body part of the adapter for the washer, and may have a substantially cylindrical coupler that surrounds the periphery of the main body part.

[0021] According to this, in the second connection part, rotation of the coupler with respect to the main body part of the adapter for the washer is allowed. By rotating the coupler while maintaining the posture of the adapter for the washer or the connector washer connected to this via the first connection part, the adapter for the washer and the connection part on the cleaning liquid supply source side can be connected.

[0022] Further, the present invention is A connector washer for cleaning a male connector for medical use having a cylindrical male connector body through which a fluid flow path penetrates axially, and a substantially cylindrical coupler that is connected to the male connector body on the rear end side of the male connector body and surrounds the periphery of the male connector body, A cleaning liquid ejection part that ejects cleaning liquid from the front of the medical male connector into the internal space of the medical male connector surrounded by the side surface of the male connector body and the inner surface of the coupler, a housing part that houses the medical male connector, and a discharge part that communicates with the housing part and discharges the cleaning liquid ejected into the internal space of the medical male connector to the outside in a state where the medical male connector is housed in the housing part, and the cleaning liquid ejection part is arranged in a circumferential shape centered on the axis of the medical male connector housed in the housing part. A connector washer characterized by A first connection part connected to the connector washer, a second connection part connected to a cleaning liquid supply source that supplies the cleaning liquid to the connector washer, and a cleaning liquid supply path through which the cleaning liquid supplied from the cleaning liquid supply source to the connector washer flows. An adapter for a washer having The cleaning liquid supply source, A connector cleaning system including

[0023] According to this, in a cleaning system including a connector cleaner configured to eject a cleaning liquid from the front toward the internal space of a male medical connector having a coupler connected to the male connector body, by arranging the cleaning liquid ejection part for ejecting the cleaning liquid in a circumferential shape centered on the axis of the male medical connector, the cleaning liquid can be ejected evenly into the internal space, and the male medical connector can be cleaned more reliably.

[0024] Here, the circumferential shape means a state where the position has a constant diameter centered on the axis of the male medical connector. The diameter centered on the axis of the male medical connector is not limited to one, and may be plural. The number of cleaning liquid ejection parts is not limited, and includes a single cleaning liquid ejection part having an extension in the circumferential direction centered on the axis of the male medical connector, and a plurality of cleaning liquid ejection parts dispersedly arranged in the circumferential direction. Further, the plurality of cleaning liquid ejection parts may be arranged evenly in the circumferential direction, that is, separated at equal angles centered on the axis of the male medical connector.

[0025] In addition, by providing a cleaner adapter having a cleaning liquid supply path that connects the connector cleaner and the cleaning liquid supply source and through which the cleaning liquid supplied from the cleaning liquid supply source to the connector cleaner flows, the degree of freedom in designing the flow path for guiding the cleaning liquid to the cleaning liquid ejection part of the connector cleaner is improved. That is, the cleaning liquid supply path can be appropriately designed as a flow path capable of efficiently guiding the cleaning liquid from the cleaning liquid supply source to the cleaning liquid ejection part arranged in the circumferential direction centered on the axis of the male medical connector.

[0026] In addition, by configuring the cleaner adapter having the cleaning liquid supply path to be connected to the connector cleaner and the cleaning liquid supply source, the connection with the connector cleaner and the cleaning liquid supply source can be released and each can be cleaned individually, so that cleaning can be performed easily and reliably. In addition, the usage mode can also be set separately for the connector cleaner and the cleaner adapter. That is, it is also possible to use the connector cleaner for each patient to whom the male medical connector is connected, and use the cleaner adapter for a plurality of subjects. Furthermore, by designing the second connection part connected to the cleaning liquid supply source according to the specifications of the connection part between the cleaning liquid supply source or the adapter for the cleaner on the cleaning liquid supply source side, only the adapter for the cleaner can be replaced according to the specifications of the connection part between the cleaning liquid supply source or the adapter for the cleaner on the cleaning liquid supply source side, and the medical male connector can be cleaned. In addition, as the second connection part and the connection part on the cleaning liquid supply source side, various connection forms such as male type, female type, luer lock type, and luer taper type are applicable.

[0027] As the cleaning liquid supply source, for example, a syringe or a cleaning liquid tank having a pressure pump can be used, but it is not limited thereto. When applying a device such as a cleaning liquid tank having a pressure pump as the cleaning liquid supply source, a tube or the like for transporting the cleaning liquid from such a device to the adapter for the cleaner is also included in the cleaning liquid supply source.

[0028] Also, in the present invention, The cleaning liquid supply path has a diameter-expanded part at the end on the first connection part side, The second connection part may include a male connector.

[0029] According to this, the cleaning liquid supplied from the cleaning liquid supply source can be efficiently guided to the cleaning liquid ejection part arranged circumferentially of the connector cleaner through the diameter-expanded part whose inner diameter expands toward the end on the first connection part side, and a cleaning liquid supply source having a female connection structure can be used as the connection part on the cleaning liquid supply source side.

[0030] Also, the present invention is A cleaner adapter connected to a connector cleaner for cleaning a medical male connector having a cylindrical male connector body through which a fluid flow path penetrates in the axial direction, and a substantially cylindrical coupler connected to the male connector body on the rear end side of the male connector body and surrounding the male connector body. A first connection part connected to the connector cleaner, a second connection part connected to a cleaning liquid supply source that supplies a cleaning liquid to the connector cleaner, and a cleaning liquid supply path through which the cleaning liquid supplied from the cleaning liquid supply source to the connector cleaner flows, characterized by having the same.

[0031] A configuration in which the connector cleaner and the cleaning liquid supply source are directly connected is preferable because it can surely ensure liquid tightness between the cleaning liquid supply source and the connector cleaner in a configuration where the cleaning liquid is supplied to the connector cleaner by applying internal pressure from the cleaning liquid supply source. However, in such a configuration where the connector cleaner and the cleaning liquid supply source are directly connected, the connector cleaner can be connected only to a specific cleaning liquid supply source. On the other hand, by providing a cleaner adapter for connecting the connector cleaner and the cleaning liquid supply source, various cleaning liquid supply sources can be connected to the connector cleaner. Further, by designing the second connection part connected to the cleaning liquid supply source to correspond to the specifications of the connection part with the cleaning liquid supply source or the cleaner adapter on the cleaning liquid supply source side, only the cleaner adapter can be exchanged according to the specifications of the connection part with the cleaning liquid supply source or the cleaner adapter on the cleaning liquid supply source side to clean the male medical connector. As the cleaning liquid supply source, for example, a syringe or a cleaning liquid tank having a pressure feed pump can be used, but it is not limited thereto. Also, as the second connection part and the connection part on the cleaning liquid supply source side, various connection forms such as male type, female type, luer lock type, and luer taper type are applicable. Further, by providing a cleaner adapter that connects the connector cleaner and the cleaning liquid supply source and has a cleaning liquid supply path through which the cleaning liquid supplied from the cleaning liquid supply source to the connector cleaner flows, the degree of freedom in designing the flow path for guiding the cleaning liquid to the cleaning liquid ejection part of the connector cleaner is improved. Further, by configuring the cleaner adapter having the cleaning liquid supply path to be connected to the connector cleaner and the cleaning liquid supply source, the connection between the connector cleaner and the cleaning liquid supply source can be released and each can be cleaned individually, so that it can be cleaned easily and surely. In addition, the usage mode can also be set separately for the connector cleaner and the adapter for the cleaner. That is, the connector cleaner can be used for each patient to whom the male medical connector is connected, and the adapter for the cleaner can be used for a plurality of subjects.

[0032] In addition, the present invention A connector cleaner for cleaning a medical male connector having a cylindrical male connector body through which a fluid passage axially penetrates, and a substantially cylindrical coupler that is connected to the male connector body on the rear end side of the male connector body and surrounds the male connector body, A cleaning liquid ejection part that ejects a cleaning liquid from the front of the medical male connector into the internal space of the medical male connector surrounded by the side surface of the male connector body and the inner surface of the coupler, A housing part that houses the medical male connector, A discharge part that communicates with the housing part and discharges the cleaning liquid ejected into the internal space to the outside in a state where the medical male connector is housed in the housing part, Comprising The housing part has, in front of the medical male connector housed in the housing part, a cleaning liquid receiving part that faces the internal space and into which at least a part of the cleaning liquid ejected into the internal space from the cleaning liquid ejection part flows, The cleaning liquid receiving part has a discharge opening that communicates with the discharge part and an opposing wall part that faces the internal space, When defining the height from the front to the rear in the axial direction, the height of the lowest part of the discharge opening is the same as the height of the lowest part of the opposing wall part or lower than the lowest part of the opposing wall part.

[0033] According to this, even if at least a part of the cleaning liquid ejected from the cleaning liquid ejection part into the internal space of the medical male connector flows into the cleaning liquid receiving part, the flowing-in cleaning liquid flows to the discharge opening having the same or lower height as the lowest part of the opposing wall part and is discharged from the drainage part communicating with this discharge opening, so that the cleaning liquid after cleaning does not stay in the housing part.

[0034] In the present invention, as much as possible, the means for solving the above problems can be used in combination.

Advantages of the Invention

[0035] According to the present invention, a male connector for medical use can be more reliably cleaned.

Brief Description of the Drawings

[0036]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Mode for Carrying Out the Invention

[0037] Hereinafter, embodiments of the present invention will be described. The embodiments shown below are examples of the embodiments of the present invention, and do not limit the technical scope of the present invention to the following aspects.

[0038] <Example 1> Fig. 1 shows the overall configuration of a cleaning system 1 including a male connector cleaning unit 10, a syringe connection member 20, and a syringe 30 according to this embodiment. The cleaning system 1 corresponds to the male connector cleaning system of the present invention. In the cleaning system 1, the male connector 100 housed in the connector cleaning unit (hereinafter simply referred to as the cleaning unit) 10 is cleaned with the cleaning liquid stored in the syringe 30.

[0039] As shown in Fig. 1, the syringe connection member 20 is connected to the side of the cleaning unit 10 opposite to the side (referred to as the proximal end side) where the male connector 100 is inserted with respect to the axial direction. And the syringe 30 is connected to the connector cleaning unit 10 via the syringe connection member 20.

[0040] Figure 2 shows a longitudinal sectional view of an enteral nutrition connector 100, which is an example of an object to be cleaned by the cleaning unit 10 according to this embodiment. In Figure 2, the lower side corresponds to the tip side of the connector 100, and the upper side corresponds to the rear end side. In Figure 1, the dashed line Ax0 indicates the axial direction of the connector 100. The connector 100 in this embodiment is provided with a connector body 101 as a connector body having a flow path 101a communicating with the tube 102 inside. The connector body 101 has a tapered side surface 101b (which can also be said to be a truncated conical shape) whose outer diameter becomes smaller toward the tip side. The connector 100 corresponds to the male connector of the present invention. Note that the object to be cleaned by the cleaning unit 10 is not limited to the enteral nutrition connector, and a connector used for medical procedures such as dialysis may also be the object.

[0041] And around the connector body 101, a substantially cylindrical coupler 103 that surrounds the outer periphery of the connector body 101 is provided. A coupler coupling portion 103b provided on the rear end side of the inner surface of the coupler 103 and a body coupling portion 101c provided on the rear end side of the side surface 101b of the connector body 101 together form a connector coupling portion 100a as a connecting portion. In the connector coupling portion 100a, the coupler 103 is coupled to the connector body 101 so as to be rotatable around the axis and not removable toward the tip side. And the space surrounded by the side surface 101b of the connector body 101, the inner surface of the coupler 103, and the connector coupling portion 100a is hereinafter referred to as the internal space 100b of the connector 100. Note that the connecting portion may be such that the coupler 103 is fixed to the connector body 101 so as not to be rotatable around the axis. That is, in this embodiment, a free-lock connector is shown as an example, but a fixed-lock connector may also be used.

[0042] Further, on the rear side of the main body coupling portion 101c of the connector main body 101, a disk-shaped rib portion 101d protruding outward in the circumferential direction over the entire side surface of the connector main body 101 is formed, and functions as a stopper so that the coupler 103 does not move excessively toward the rear end side with respect to the connector main body 101. On the rear side of the rib portion 101d, a disk-shaped rib portion 101e protruding outward in the circumferential direction over the entire side surface of the connector main body 101 is similarly formed. A groove 101g extending over the entire circumference is formed by a bottom portion 101f provided in parallel with the axial direction of the connector main body 101 between the rib portion 101d and the rib portion 101e and the rib portion 101d and the rib portion 101e, and an elastic body ring (not shown) is attached thereto. Further, the rear end side of the flow path 101a provided in the connector main body 101 has an enlarged inner diameter to form a large-diameter portion 101h, and the tube 102 can be press-fitted therein. A male screw portion 103a is formed on the inner surface of the coupler 103, and it can be screw-coupled with a female connector (not shown) having a female screw portion formed thereon. Note that the disk-shaped rib portion 101d is not essential, and the coupler 103 may be able to move freely toward the rear end side with respect to the connector main body 101. That is, the coupler 103 may be a slide coupler.

[0043] In this embodiment, the tube 102 shown in FIG. 1 is coupled to a living body, and the male connector 100 is screw-coupled with a female connector (not shown), so that a fluid such as a nutrient solution is supplied from the female connector side to the living body via the male connector 100 and the tube 102.

[0044] FIG. 3(A) shows an exploded perspective view of the entire cleaning unit 10 for fixing and cleaning the male connector 100 in this embodiment. FIG. 3(B) shows a plan view of the main body portion 11 of the cleaning unit 10. Further, FIG. 4(A) shows an exploded right side view of the cleaning unit 10, and FIG. 4(B) shows an exploded cross-sectional view taken along line A-A thereof. Here, with reference to the cleaning unit 10 in a posture in which the axial direction of the main body portion 11 is upright (the posture shown in FIG. 2(A)) when viewed from the direction in which the drain cylinder portion 112 of the cleaning unit 10 protrudes, the front, rear, top, bottom, and left and right are defined. In FIG. 6, the broken line Ax1 indicates the axial direction of the cleaning unit 10.

[0045] The cleaning unit 10 is composed of a substantially cylindrical main body 11 and a lid member 12. The cleaning unit 10 corresponds to the connector cleaner of the present invention.

[0046] The main body 11 has a cylindrical connector mounting portion 111 to which the male connector 100 is attached, a drain cylinder portion 112 for discharging the cleaning liquid after cleaning the male connector 100, and a connection member mounting portion 113 to which the syringe connection member 20 is attached. The main body 11 is formed of a rigid member. The main body 11 may be configured as a disposable component that is assumed to be replaced by cleaning one or more times.

[0047] The connector mounting portion 111 includes an opening 1111 into which the lid member 12 is mounted and the male connector 100 is inserted, and has a substantially cylindrical hollow interior in which the male connector 100 is accommodated. By fitting the end portion on the opening 1111 side of the wall portion 1112 that surrounds the opening 1111 and extends axially in a tubular shape into the groove 1223 of the lid member 12 described later, the lid member 12 is mounted on the main body 2. Further, engaging protrusions 1112e and 1112f that protrude in the outer diameter direction are formed at the end portion on the opening 1111 side of the outer peripheral surface of the wall portion 1112. The engaging protrusions 1112e and 1112f extend over a part of the circumferential direction, and are formed such that the amount of protrusion in the outer diameter direction increases from the opening 1111 side along the axial direction toward the connection member mounting portion 113 side.

[0048] The wall portion 1112 of the connector attachment portion 111 includes a diameter-expanded portion 1112a that expands in diameter toward the opening portion 1111, and a small-diameter portion 1112d having substantially the same diameter as that of the diameter-expanded portion 1112a on the side opposite to the opening portion 1111 via a stepped portion 1112b and a tapered portion 1112c. The tapered portion 1112c has a function of guiding the male connector 100 to the small-diameter portion 1112d when the male connector 100 is inserted through the insertion hole 121a of the lid member 12 described later. The inner diameter of the small-diameter portion 1112d is set to be slightly larger than the outer diameter of the coupler 103 of the male connector 100. When the male connector 100 is attached to the connector attachment portion 111, a gap is formed between the wall portion 1112 and the coupler 103, forming a flow path for the cleaning liquid. The hollow interior of the connector attachment portion 111 is separated from the connection member attachment portion 113 by a partition wall 1113. On the end face 1113a on the small-diameter portion 1112d side of the partition wall 1113, when the male connector 100 is attached, the tip of the connector body 101 can be accommodated, and a groove 1113b having an annular shape in plan view is provided. Further, on the center side of the inner circumference of the groove 1113b, a columnar protrusion 1113c that is inserted into the flow path 101a of the connector body 101 is formed. The protrusion 1113c forms a separating portion that separates the flow path 101a of the connector body 101 and the flow path of the cleaning liquid. When the male connector 100 is attached to the connector attachment portion 111, the tip of the coupler 103 abuts on the end face 1113a on the small-diameter portion 1112d side on the outer peripheral side of the groove 1113b. At this time, the groove 1113b faces the inner space 100b of the male connector 100 in front of the male connector 100. A groove for attaching an elastic ring may be provided on the end face 1113a where the tip of the coupler 103 abuts, so that the tip of the coupler 103 abuts on the elastic ring. In this way, the male connector 100 can be elastically supported so as to be vertically movable. The connector attachment portion 111 corresponds to the housing portion of the present invention. Further, the housing portion of the present invention may include a lid member 12 in addition to the connector attachment portion 111.

[0049] As shown in Fig. 3(B), on the bottom surface 1113b1 of the groove 1113b of the end face 1113a, the cleaning liquid ejection holes 1113d1 to 1113d4 as the cleaning liquid ejection parts are arranged in a circumferential shape centered on the axis of the protrusion part 1113c. Here, the cleaning liquid ejection holes 1113d1 to 1113d4 are arranged at equal angles (90°) in the circumferential direction. Also, the axis Ax1 of the protrusion part 1113c coincides with the axis Ax0 of the male connector 100 attached to the cleaning part 10. These cleaning liquid ejection holes 1113d1 to 1113d4 penetrate through the inside of the partition wall 1113 and communicate with the end face 1113e side of the connecting member attachment part 113. When the cleaning liquid is pressure-fed from the outside into the cleaning liquid inflow hole, the cleaning liquid is ejected from the cleaning liquid ejection holes 1113d1 to 1113d4 located in front of the male connector 100. Here, four holes are provided as the cleaning liquid ejection holes 1113d1 to 1113d4 as the cleaning liquid ejection part, but they may be arranged in a circumferential shape centered on the axis of the protrusion part 1113c, and the number and arrangement of the cleaning liquid ejection holes are not limited to this. One or a plurality of cleaning liquid ejection holes can be arranged at a position with a certain diameter from the axis of the protrusion part 1113c. Also, the cleaning liquid ejection holes may be arranged on circumferences having a plurality of different diameters from the axis of the protrusion part 1113c. Here, the groove 1113b corresponds to the cleaning liquid receiving part of the present invention, and the bottom surface 1113b1 of the groove 1113b corresponds to the opposing wall part of the present invention.

[0050] At the end of the wall portion 1112 of the connector attachment portion 111 on the partition wall 1113 side, a first cleaning liquid discharge hole 112b communicating with the cleaning liquid discharge path 112a penetrating the inside of the drain cylinder portion 112 is opened, and a second cleaning liquid discharge hole 112c communicating with the cleaning liquid discharge path 112a is also opened on the side wall of the groove 1113b. At least a part of the cleaning liquid ejected into the internal space 100b of the male connector 100 from the cleaning liquid ejection holes 1113d1 to 1113d4 passes through the gap between the small-diameter portion 1112d of the connector attachment portion 111 and the outer surface of the coupler 103 from the connector coupling portion 100a and is discharged from the first cleaning liquid discharge hole 112b to the cleaning liquid discharge path 112a. Further, at least a part of the cleaning liquid ejected into the internal space 100b of the male connector 100 from the cleaning liquid ejection holes 1113d1 to 1113d4 flows into the groove 1113b and is discharged from the second cleaning liquid discharge hole 112c to the cleaning liquid discharge path 112a. Here, the bottom surface 1113b1 of the groove 1113b is orthogonal to the axis Ax1, and when the height is defined in the direction of the arrow attached to the axis Ax1 (which coincides with the front to rear of the male connector 100 attached to the cleaning portion 10), the height of the bottom surface 1113b1 is the same around the axis Ax1. And, among the second cleaning liquid discharge holes 112c opening in the groove 1113b, the portion 1112c1 intersecting the A-A cross section becomes the portion with the lowest height (lowest portion). The height of the lowest portion 112c1 of the second cleaning liquid discharge hole 112c is the same as the height of the bottom surface 1113b1. Further, in the cleaning liquid discharge path 112a continuous with the second cleaning liquid discharge hole 112c, a discharge path 112a1 with a height decreasing from the lowest portion 112c1 toward the tip of the drain cylinder portion 112 is formed on the A-A cross section. In this embodiment, the height of the lowest portion 112c1 of the second cleaning liquid discharge hole 112c is the same as the height of the bottom surface 1113b1, but it may be lower than the height of the bottom surface 113b1. Also, in this embodiment, the bottom surface 1113b1 has a uniform height, but when there are portions with different heights on the bottom surface 113b1, the height of the lowest portion 112c1 of the second cleaning liquid discharge hole 112c is set to be the same as or lower than the portion with the lowest height of the bottom surface 113b1.In this way, by setting the lowest part of the second cleaning liquid discharge holes 112c that open into the groove 1113b to be the same as or lower than the lowest part of the bottom surface 113b1 of the groove 113b, it is possible to reduce the cleaning liquid or drainage liquid that remains in the groove 1113b without being discharged from the cleaning liquid discharge path 112a. In this embodiment, since the first cleaning liquid discharge hole 112b and the second cleaning liquid discharge hole 112c are only separated via the coupler 103 when the male connector 100 is attached, they may be formed simultaneously when forming the cleaning liquid discharge path 112a. The cleaning liquid discharge path 112a corresponds to the discharge part of the present invention. Further, the second cleaning liquid discharge hole 112c corresponds to the discharge opening of the present invention.

[0051] The connection member attachment part 113 is provided on the main body part 11 on the side opposite to the connector attachment part 111 with respect to the axial direction. The connection member attachment part 113 is an opening into which the syringe connection member 20 is inserted It has a large-diameter portion 1131 including a mouth portion 1131a and a small-diameter portion 1133 continuous with the large-diameter portion 1131 via a reduced-diameter portion 1132. The opening 1131a of the large-diameter portion 1131 has a shape in which fan-shaped openings 1131a2 and 1131a3 that radially expand extend continuously from a circular opening 1131a1 through which the tip 217 of the syringe connection member 20 can be inserted to both sides in the diameter direction. The fan-shaped openings 1131a2 and 113a3 are formed to a predetermined depth from the end face on the opening 1131a side along the axial direction toward the connector attachment portion 111 side. And grooves 1131b2 and 1131b3 that are recessed from the inner peripheral surface of the large-diameter portion 1131 toward the outer diameter side are formed in the circumferential direction continuously at the ends on the connector attachment portion 111 side of the fan-shaped portions of the openings 1131a2 and 1131a3. The grooves 1131b2 and 1131b3 are formed in the clockwise direction when viewed along the axial direction from the syringe connection member 20 side with respect to the ends of the openings 1131a2 and 1131a3, and have a substantially wedge shape in which the axial height of the grooves 1131b2 and 1131b3 decreases as it progresses clockwise. The outer diameter side of the substantially wedge-shaped grooves 1131b2 and 1131b3 penetrates to the outer peripheral surface, forming wedge-shaped holes 1131c2 and 1131c3. The holes 1131c2 and 1131c3 are rotationally symmetric with respect to each other with respect to the axis and have a substantially wedge shape in which the axial height decreases clockwise when viewed from the syringe connection member 20 side. Among the openings 1131a of the large-diameter portion 1131, the circular opening 1131a1 communicates with the small-diameter portion 1133 in the axial direction. A cleaning liquid inflow hole communicating with the above-described cleaning liquid ejection holes 1113d1 to 1113d4 is formed in the end face 1113e on the small-diameter portion 1133 side of the partition wall 1113.

[0052] The lid member 12 has a substantially bottomed cylindrical shape. It has a substantially disk-shaped end face 121 and a substantially cylindrical wall portion 122. An insertion hole 121a for inserting the male connector 100 is formed in the central portion of the end face 121. The size of the insertion hole 121a only needs to be such that it allows the insertion of the male connector 100 by elastic deformation, and it is not limited to the case where it presses against the outer peripheral surface of the connector body 101 of the male connector 100 housed in the connector mounting portion 111. The size of the insertion hole 121a may be such that there is a gap between the insertion hole 121a and the connector body 101. The wall portion 122 includes an outer wall portion 1221 on the outer diameter side and an inner wall portion 1222, and a cylindrical groove 1223 having an axial depth over the entire circumference is provided between the outer wall portion 1221 and the inner wall portion 1222. Holes 1221a and 1221b extending in a part of the circumferential direction are provided at the position of the outer wall portion 1221 on the end face 121 side. The holes 1221a and 1221b penetrate from the groove 1223 side to the outer peripheral surface of the outer wall portion 1221, and are provided at positions rotationally symmetric to each other with respect to the axis. The lid member 12 is formed of an elastic member such as a PVC sheet, rubber, elastomer, or polyethylene. The lid member 12 is not limited to being integrally formed of an elastic member as described above, and a portion including the insertion hole 121a may be formed of the above-described elastic member, and this may be configured to be held by the holding portion by adhesion, welding, or the like. At this time, the holding portion may be provided integrally with the connector mounting portion 111 or separately.

[0053] FIG. 5 is a perspective view of the syringe connection member 20, FIG. 6(A) is a right side view thereof, FIG. 6(B) is a plan view thereof, FIG. 6(C) is a bottom view thereof, and FIG. 6(C) is a cross-sectional view taken along line B - B. Here, the syringe connection member 20 corresponds to the adapter for the washer of the present invention. The syringe connection member 20 is a member to which a syringe 30 storing a cleaning liquid is connected, and is connected and fixed to the main body 11 by an operator. The syringe connection member 20 is composed of a substantially cylindrical main body 21 and a coupler 22. The main body 21 of the syringe connection member 20 has a hollow interior 211. The hollow interior 211 penetrates in the direction of the axis Ax2 from the end face 212 on the syringe 30 side to the end face 213 on the cleaning unit 10 side. The hollow interior 211 includes a reduced-diameter portion 211a with a smaller inner diameter from the syringe 30 side to the cleaning unit 10 side, a small-diameter portion 211b continuous with the reduced-diameter portion 211a, a first enlarged-diameter portion 211c continuous with the small-diameter portion 211b and having a slightly enlarged inner diameter toward the cleaning unit 10 side, and a second enlarged-diameter portion 211e that further enlarges in inner diameter from the first enlarged-diameter portion 211c through an annular end face 211d in a direction orthogonal to the axial direction and opens to the end face 213 on the cleaning unit 10 side. Let the inner diameter of the end on the syringe side of the reduced-diameter portion 211a be Da, the inner diameter of the small-diameter portion be Db, and the inner diameter of the end on the end face 211d side of the first enlarged-diameter portion 211c be Dc. Then, Db < Dc < Da. That is, the inner diameter of the reduced-diameter portion 211a is the largest at the end on the syringe 30 side and decreases toward the cleaning unit 10 side, and the inner diameter is the smallest at the small-diameter portion 211b of the tip 217. And the inner diameter of the first enlarged-diameter portion 211c increases from the small-diameter portion toward the end face 211d side. Thus, the hollow interior 211 of the syringe connection member 20 has a portion (here, the small-diameter portion 211b) with a smaller inner diameter between the end face 213 on the cleaning unit 10 side and the end face 212 on the syringe 30 side. Here, the hollow interior 211 corresponds to the cleaning liquid supply path of the present invention. Also, the second enlarged-diameter portion 211e (which may include the first enlarged-diameter portion 211c) corresponds to the enlarged-diameter portion of the present invention, and the small-diameter portion 211b corresponds to the small-diameter portion of the present invention. Also, the axis Ax2 corresponds to the second axis of the present invention, and the connection direction of the present invention to the connector cleaner coincides with the axis Ax2.

[0054] The end portion 2151 on the syringe 30 side of the main body portion 21 of the syringe connection member 20 has a tapered shape in which the outer peripheral surface contracts in diameter toward the end surface 212. A groove-shaped coupling portion 2152 that is rotatably coupled to the coupler 22 is formed over the entire circumference on the outer peripheral surface of the end portion 2151 on the cleaning unit 10 side. On the outer peripheral surface of the coupling portion 2152 on the cleaning unit 10 side, ribs 2153 protruding in the outer diameter direction are formed over the entire circumference. This rib 2153 functions as a stopper that restricts movement toward the cleaning unit 10 side in the direction of the axis Ax2 of the coupler 22 attached to the outer periphery of the main body portion 21. On the cleaning unit 10 side of the rib 2153, a flange portion 216 protruding in the outer diameter direction is formed over the entire circumference. The tip portion 217, which is the portion on the cleaning unit 10 side from this flange portion 216, has an outer diameter larger than that on the syringe 30 side. Between the rib 2153 and the flange portion 216, plate-like wing portions 2154 and 2155 extending in the outer diameter direction are formed at two locations on the outer peripheral surface that is rotationally symmetric with respect to the axis Ax2 direction, continuously with the rib 2153 and the flange portion 216. By the wing portions 2154 and 2155, when inserting and removing the syringe connection member 20 from the opening 1131a of the cleaning unit 10, the syringe connection member 20 can be reliably held. Also, when attaching the syringe connection member 20 to the cleaning unit 10 by rotating it clockwise or removing it from the cleaning unit 10 by rotating it counterclockwise, by placing a finger on the wing portions 2154 and 2155, the rotational moment of the force in the rotational direction increases, so attachment and removal can be easily and reliably performed without applying a large force. Here, the main body portion 21 and the coupler 22 of the syringe connection member 20 respectively correspond to the main body portion and the coupler 22 of the adapter for a cleaner of the present invention. Also, the end portion 2151 of the main body portion 21 of the syringe connection member 20 and the coupler 22 correspond to the second connection portion and the male connector of the present invention. Also, the tip portion 217 corresponds to the first connection portion of the present invention. Also, the wing portions 2154 and 2155 correspond to the operation portion of the present invention.

[0055] On the outer peripheral surface of the distal end portion 217, engaging protrusions 2171 and 2172 protruding in the outer diameter direction are formed. The engaging protrusions 2171 and 2172 are plate-shaped that extend over a part of the circumferential direction and protrude toward the outer diameter side. The engaging protrusion 2171 has a substantially wedge shape when viewed from the outer diameter direction. That is, the shape of the engaging protrusion 2171 when viewed from the outer diameter direction is such that the axial thickness becomes thinner toward the end portion 2171a in the clockwise direction when viewed axially from the syringe 30 side. Further, the axial distance between the surface 2171b of the engaging protrusion 2171 on the syringe 30 side and the flange portion 216 is configured to change according to the circumferential direction. That is, the surface 2171b of the engaging protrusion 2171 is formed so as to be close to the flange portion 216 on the end portion 2171c side in the counterclockwise direction and far from the flange portion 216 on the end portion 2171a side in the clockwise direction when viewed axially from the syringe 30 side. The engaging protrusion 2172 has a shape rotationally symmetric with the above-described engaging protrusion 2171 with respect to the axis. Here, the engaging protrusions 2171 and 2172 correspond to the connecting means.

[0056] On the outer peripheral surface of the distal end portion 217 on the cleaning unit 10 side from the engaging protrusions 2171 and 2172, a groove 2173 that is concave on the inner diameter side is formed over the entire circumference in order to attach the elastic ring 5 to the main body portion 2 side. Here, the elastic ring 5 corresponds to the seal member of the present invention.

[0057] The substantially cylindrical coupler 22 is formed such that a coupling portion 221 that rotatably couples to the main body portion 21 protrudes on the inner diameter side on the cleaning unit 10 side. By coupling the coupling portion 221 of the coupler 22 and the coupling portion 2152 of the main body portion 21, the coupler 22 is coupled to the main body portion 21 so as to be rotatable about the axis and not removable toward the syringe 30 side. Note that the coupler 22 may be fixed to the main body portion 21 so as not to be rotatable about the axis. A female screw portion 223 is formed on the inner peripheral surface of the coupler 22 from the opening 222 on the syringe 30 side toward the coupling portion 221.

[0058] FIG. 7(A) is a perspective view of the syringe 30, FIG. 7(B) is a front view of the syringe 30, and FIG. 7(C) is a cross-sectional view taken along the line C-C of the syringe 30. The syringe 30 corresponds to the cleaning liquid supply source of the present invention. The syringe 30 is connected to the coupler 22 side of the syringe connection member 20. The syringe 30 has a substantially cylindrical outer cylinder 31 and a substantially cylindrical tip 32 with a small diameter. The outer cylinder 31 has an opening 311 on the side opposite to the syringe connection member 20. The tip 32 is provided at the center of the syringe connection member 20 side of the outer cylinder 31, has an opening 321 on the syringe connection member 20 side, and engaging protrusions 322 and 323 are formed on the outer peripheral surface on the opening 321 side. The engaging protrusions 322 and 323 project in the outer diameter direction and have a substantially plate shape extending in the circumferential direction. When viewed in the axial direction from the opening 311 side, the clockwise end portions 322a and 323a of the engaging protrusions 322 and 323 are close to the opening 321, and the counterclockwise end portions 322b and 323b are far from the opening 321 and close to the outer cylinder 31 and are inclined. The hollow interior 324 of the tip 32 is continuous with the hollow interior 312 of the outer cylinder 31 via a stepped portion 235 and a small-diameter portion 326. The hollow interior 324 has a reduced diameter from the opening 321 toward the stepped portion 325. Here, the tip 32 constitutes a female connector corresponding to the male connector constituted by the end portion 2151 of the main body portion 21 of the syringe connection member 20 and the coupler 22. Although not shown, the syringe 30 has a pusher inserted into the hollow interior 312 communicating with the outside through an opening 311 provided at the end opposite to the tip 32 in the axial direction. The pusher has an axial extension, and a gasket is attached to the tip end portion on the tip 32 side to keep the space between the pusher and the outer cylinder 31 airtight and liquidtight.

[0059] FIGS. 8(A) to (C) are diagrams for explaining how to assemble the cleaning system 1 and show the state as viewed from the front of the cleaning unit 10. FIGS. 9(A) and (B), FIGS. 10(A) and (B), and FIGS. 11(A) to (C) show the overall configuration of the cleaning system 1 assembled in this way. FIG. 9(A) is a right side view of the cleaning system 1, and FIG. 9(B) is a D-D cross-sectional view of the cleaning system 1. FIG. 10(A) is a front view of the cleaning system 1, and FIG. 10(B) is an E-E cross-sectional view of the cleaning system 1. FIG. 11(A) is a plan view of the cleaning system 1, FIG. 11(B) is an F-F cross-sectional view of the cleaning system, and FIG. 11(C) is an enlarged view of the connection portion between the syringe connection member 20 and each part in the F-F cross-sectional view.

[0060] As shown in FIG. 8(A), first, the syringe connection member 20 is connected to the cleaning unit 10 in which the lid member 12 is attached to the connector attachment portion 111 of the main body portion 11. Here, the arrow between the cleaning unit 10 and the syringe connection member 20 in FIG. 8(A) indicates the connection direction of the connector of the adapter for the cleaner of the present invention to the cleaner. The tip portion 217 of the syringe connection member 20 is inserted through the opening 1131a of the large-diameter portion 1131 of the connection member attachment portion 113. At this time, the rotational position around the axis is adjusted so that the engaging protrusions 2171 and 2172 of the syringe connection member 20 come to the positions of the sector-shaped openings 1131a2 and 1131a3 of the large-diameter portion 1131 of the connection member attachment portion 113. At this time, since the engaging protrusions 2171 and 2172 of the syringe connection member 20 are formed rotationally symmetrically around the axis, the engaging protrusions 2171 and 2172 may be inserted from the openings 1131a2 and 1131a3, respectively, or may be inserted from the openings 1131a3 and 1131a2, respectively. Hereinafter, the description will be made on the assumption that the engaging protrusions 2171 and 2172 are inserted from the openings 1131a2 and 1131a3, respectively.

[0061] As described above, when the tip 217, engaging protrusions 2171 and 2172 of the syringe connection member 20 are inserted through the openings 1131a1, 1131a2, and 1131a3 respectively, the engaging protrusions 2171 and 2172 come into contact with the axial ends of the openings 1131a2 and 1131a3 respectively. From here, the syringe connection member 20 is rotated clockwise about the axis as shown in Fig. 8(A) when viewed from the coupler 22 side. Since grooves 1131b2 and 1131b3 are formed continuously with the openings 1131a2 and 1131a3 of the connection member mounting portion 113 respectively, by rotating the syringe connection member 20 clockwise as described above, the engaging protrusions 2171 and 2172 engage with the grooves 1131b2 and 1131b3 respectively. The axial height of this groove 1131b2 forms a substantially wedge shape that decreases as it progresses clockwise. Also, the surface 2171b of the engaging protrusion 2171 is formed such that when viewed axially from the syringe 30 side, it is closer to the flange portion 216 at the counterclockwise end 2171c side and farther from the flange portion 216 at the clockwise end 2171a side. Therefore, by rotating the syringe connection member 20 clockwise, the clockwise end 2171a of the engaging protrusion 2171 advances to a portion where the axial height of the groove 1131b2 is small. In this way, as the engaging protrusion 2171 is guided by the groove 1131b2, the syringe connection member 20 is further pushed into the connection member mounting portion 113 side. Since the engaging protrusion 2172 and the groove 1131b3 are also configured in the same way as the engaging protrusion 2171 and the groove 1131b2, as the engaging protrusion 2172 is guided by the groove 1131b3, the syringe connection member 20 is similarly further pushed into the connection member mounting portion 113 side.

[0062] In this way, when the syringe connection member 20 is pushed into the connection member mounting portion 113 side, it reaches a position where the end face 213 of the syringe connection member 20 abuts against the end face 1113e of the connection member mounting portion 113 (see FIGS. 9(B), 10(B), 11(B) and (C)). At this time, the elastic ring 5 mounted in the groove 2173 of the tip portion 217 is pressed against the inner peripheral surface of the small diameter portion 1133, so that the gap between the cleaning portion 10 and the syringe connection member 20 is kept liquid-tight, and the cleaning liquid ejected from the enlarged diameter portion 211e is prevented from leaking from the opening portion 1131a. The method of keeping the gap between the tip portion 217 of the syringe connection member 20 and the connection member mounting portion 113 of the cleaning portion 10 liquid-tight is not limited to the case where the elastic ring 5 is interposed as described above. For example, by bringing the tapered surface provided at the tip portion 217 of the syringe connection member 20 into liquid-tight contact with the tapered surface provided at the connection member mounting portion 113 of the cleaning portion 10, the gap between the tip portion 217 of the syringe connection member 20 and the connection member mounting portion 113 of the cleaning portion 10 can be kept liquid-tight.

[0063] Also, as shown in FIGS. 11(B) and (C), in a state where the end face 213 of the syringe connection member 20 abuts against the end face 1113e of the connection member mounting portion 113 of the cleaning portion 10, cleaning liquid ejection holes 1113d1 to 1113d4 penetrating through the partition wall 1113 are opened in the end face 1113e facing the end face 211d where the first enlarged diameter portion 211c of the syringe connection member 20 opens. And the second enlarged diameter portion 211e where the first enlarged diameter portion 211c of the syringe connection member 20 opens at the center is enlarged to a range covering the cleaning liquid ejection holes 1113d1 to 1113d4 arranged evenly in the circumferential direction on the end face 1113e. In this way, by forming the hollow interior 211, the cleaning liquid pumped from the syringe 30 can be efficiently guided to the cleaning liquid ejection holes 1113d1 to 1113d4, and the cleaning liquid can be ejected evenly in the circumferential direction from the bottom of the groove 1113b on the male connector 100 side through the partition wall 1113 into the internal space 100b of the male connector 100, so that the male connector 100 can be cleaned more reliably.

[0064] As described above, after attaching the syringe connection member 20 to the cleaning unit 10, as shown in FIG. 8(B), the syringe 30 is connected to the syringe connection member 20. While inserting the syringe tip 32 between the end portion 2151 of the main body portion 21 of the syringe connection member 20 and the opening portion 222 of the coupler 22, the end portion 2151 of the main body portion 21 of the syringe connection member 20 is inserted into the opening portion 321 of the syringe tip 32. The coupler 22 is rotated counterclockwise with respect to the axis Ax2 as shown in FIG. 8(B). As a result, the engaging protrusions 322 and 323 of the syringe tip 32 engage with the female screw portion 223 and advance in the direction of the cleaning unit 10 along the screw groove. At this time, the tapered end portion 2151 of the main body portion 21 of the syringe connection member 20 advances along the hollow interior 324 of the syringe tip 32 whose diameter is reduced from the opening portion 321. In this way, while the engaging protrusions 322 and 323 engage with the female screw portion 223 of the coupler 22, the end portion 2151 of the main body portion 21 of the syringe connection member 20 and the hollow interior 324 of the syringe tip 32 are tapered and fitted (see FIGS. 9(B), 10(B), 11(B) and (C)). Thereby, the syringe connection member 20 and the syringe 30 are surely connected, and leakage of the cleaning liquid from the connection portion between the syringe connection member 20 and the syringe 30 is prevented.

[0065] In this way, the cleaning unit 10, the syringe connection member 20, and the syringe 30 are connected. Although not shown, further, a syringe or a drain tube is connected to the drain cylinder portion 112 of the cleaning unit 10.

[0066] Next, as shown in FIG. 8(C), insert the male connector 100 through the insertion hole 121a of the lid member 12 of the cleaning unit 10. The male connector 100 is inserted into the insertion hole 121a from the tip side, that is, the side where the coupler 103 is attached, and the coupler 103 and the connector body 101 are pushed into the hollow interior of the connector attachment portion 111 through the opening 1111. The tip of the connector body 101 is received in an annular groove 1113b provided on the end face 1113a on the small-diameter portion 1112d side of the partition wall 1113 of the connector attachment portion 111, and a columnar protrusion 1113c provided on the center side of the inner circumference of the groove 1113b is inserted into the flow path 101a of the connector body 101. When the male connector 100 is attached to the connector attachment portion 111, the tip of the coupler 103 abuts on the end face 1113a on the small-diameter portion 1112d side on the outer peripheral side of the groove 1113b (see FIGS. 9(B), 10(B), 11(B), and (C)).

[0067] As described above, the assembled cleaning system 1 is configured as shown in the overall perspective view of FIG. 1. Here, in the cleaning system 1, although the syringe 30 is used as the cleaning liquid supply source, a cleaning liquid tank equipped with a pressure pump can also be used as the cleaning liquid supply source. In this case, the end of the syringe connection member 20 on the side opposite to the cleaning unit 10 can be configured to be connectable to a tube that transports the cleaning liquid connected to the pressure pump. Further, by providing a connection portion in the form of a female connector similar to the barrel tip 32 of the syringe 30 at the end of such a tube, a cleaning system 1 that uses the syringe connection member 20 for both the syringe 30 and the cleaning liquid tank can also be configured.

Description of Reference Numerals

[0068] 10 ··· Cleaning unit 11 ··· Connector attachment portion 100 ··· Male connector 100a · Connector connection portion 100b · Internal space 101 ··· Connector body 103 ··· Coupler 112a · Cleaning liquid discharge path 1113d1 to 1113d4 ··· cleaning liquid ejection holes

Claims

1. A connector washer for washing a male connector for medical use, having a cylindrical male connector body with a fluid passage axially penetrating therethrough, and a substantially cylindrical coupler connected to the male connector body at the rear end side thereof and surrounding the male connector body, comprising: a cleaning liquid ejection portion for ejecting a cleaning liquid from the front of the medical male connector into an internal space of the medical male connector surrounded by a side surface of the male connector body and an inner surface of the coupler; a housing portion for housing the medical male connector; a discharge portion communicating with the housing portion for discharging to the outside a cleaning liquid ejected into the internal space of the medical male connector in a state where the medical male connector is housed in the housing portion; characterized in that the cleaning liquid ejection portions are arranged in a plurality in a circumferential direction centered on the axis of the medical male connector housed in the housing portion; a connector washer, characterized in that in a state where the medical male connector is housed in the housing portion, a space outside the coupler in the housing portion communicates with the discharge portion.

2. A connector washer for washing a male connector for medical use, having a cylindrical male connector body with a fluid passage axially penetrating therethrough, and a substantially cylindrical coupler connected to the male connector body at the rear end side thereof and surrounding the male connector body, comprising a cleaning liquid ejection portion for ejecting a cleaning liquid from the front of the medical male connector into an internal space of the medical male connector surrounded by a side surface of the male connector body and an inner surface of the coupler, a housing portion for housing the medical male connector, and a discharge portion communicating with the housing portion for discharging to the outside a cleaning liquid ejected into the internal space of the medical male connector in a state where the medical male connector is housed in the housing portion, characterized in that the cleaning liquid ejection portions are arranged in a plurality in a circumferential direction centered on the axis of the medical male connector housed in the housing portion, and in a connector washer adapter connected to the connector washer, in a state where the medical male connector is housed in the housing portion, a space outside the coupler in the housing portion communicates with the discharge portion, a first connection portion connected to the connector washer, and for supplying the cleaning liquid to the connector washer A washer adapter, comprising: a second connection part connected to a washer liquid supply source; and a washer liquid supply path through which the washer liquid supplied from the washer liquid supply source to the connector washer flows.

3. The washer adapter according to claim 2, wherein the washer liquid supply path has a diameter-expanded part whose inner diameter expands toward the end on the first connection part side.

4. The washer adapter according to claim 2 or 3, wherein the washer liquid supply path has a small-diameter part having an inner diameter smaller than the inner diameter at the end on the first connection part side and the inner diameter at the end on the second connection part side between the end on the first connection part side and the end on the second connection part side.

5. The first connection part includes: a seal member that liquid-tightly holds a gap between the washer adapter and the connector washer; connection means that is connected to the connector washer by rotating around the circumferential direction of the connection direction to the connector washer; and an operation part that extends in the outer diameter direction centering on a second axis extending in the connection direction. The washer adapter according to any one of claims 2 to 4, characterized by having the above.

6. The washer adapter according to any one of claims 2 to 5, wherein the second connection part is rotatably coupled to a main body part of the washer adapter and has a substantially cylindrical coupler that surrounds the main body part.

7. A connector washer for washing a male connector for medical use, comprising: a cylindrical male connector body through which a fluid flow path penetrates in the axial direction; and a substantially cylindrical coupler that is connected to the male connector body on the rear end side of the male connector body and surrounds the male connector body. The connector washer is provided with: a washer liquid ejection part that ejects washer liquid from the front of the medical male connector into an internal space of the medical male connector surrounded by a side surface of the male connector body and an inner surface of the coupler; a housing part that houses the medical male connector; and a discharge part that communicates with the housing part and discharges the washer liquid ejected into the internal space of the medical male connector to the outside in a state where the medical male connector is housed in the housing part. The washer liquid ejection part is arranged in a plurality in the circumferential direction centering on the axis of the medical male connector housed in the housing part, and in a state where the medical male connector is housed in the housing part, a space outside the coupler in the housing part and the discharge part are communicated with each other. A first connection part connected to the connector cleaner, a second connection part connected to a cleaning liquid supply source that supplies the cleaning liquid to the connector cleaner, and a cleaning liquid supply path through which the cleaning liquid supplied from the cleaning liquid supply source to the connector cleaner flows, and a connector adapter having the same; The cleaning liquid supply source; A connector cleaning system including the same.

8. At the end on the side of the first connection part, the cleaning liquid supply path has a diameter-expanded part; The connector cleaning system according to claim 7, wherein the second connection part includes a male connector.

9. A connector cleaner for cleaning a medical male connector having a cylindrical male connector body through which a fluid flow path penetrates in the axial direction, and a substantially cylindrical coupler connected to the male connector body on the rear end side of the male connector body and surrounding the male connector body, A cleaning liquid ejection part that ejects cleaning liquid from the front of the medical male connector into the internal space of the medical male connector surrounded by the side surface of the male connector body and the inner surface of the coupler; A housing part that houses the medical male connector; A discharge part that communicates with the housing part and discharges the cleaning liquid ejected into the internal space to the outside in a state where the medical male connector is housed in the housing part; Comprising; The cleaning liquid ejection parts are arranged in a plurality in the circumferential direction centered on the axis of the medical male connector housed in the housing part; In a state where the medical male connector is housed in the housing part, a space outside the coupler in the housing part communicates with the discharge part; The housing part has, in front of the medical male connector housed in the housing part, a cleaning liquid receiving part that faces the internal space and into which at least a part of the cleaning liquid ejected into the internal space flows; The cleaning liquid receiving part has a discharge opening that communicates with the discharge part and an opposing wall part that faces the internal space; When defining the height from the front to the rear in the axial direction, the height of the lowest part of the discharge opening is the same as the height of the lowest part of the opposing wall part or lower than the lowest part of the opposing wall part. A connector cleaner characterized by this.

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