JP7041570B2 - Connection holder set - Google Patents

Description

The present disclosure relates to a connection holder and a connection holder set.

Conventionally, a method has been known in which a medical tube, other medical instruments, or the like is connected to form an infusion line, and a liquid such as a drug is administered into a living body through the infusion line. The connection between medical instruments in the infusion line is performed by connecting the connector portions provided on each medical instrument. For such a connection between the connector portions, usually, the male connector portion as the connector portion provided on one medical instrument is inserted into the female connector portion as the connector portion provided on the other medical instrument. It is done by. Further, in order to suppress the occurrence of unintended detachment of the medical device, there is a connector portion provided with a locking mechanism, for example, a male screw portion and a female screw portion of a luer lock type connector portion.

Further, Patent Document 1 discloses a connection guarantee device for fixing a connection by screw joining of a patient end connector and a blood line connector as two medical instruments.

Special Table 2012-512722 Publication No.

According to the connection guarantee device described in Patent Document 1, the movement of the mated patient end connector and the blood line connector in the axial direction, or the relative movement of the connection guarantee device and the patient end connector around the axis. Rotation can be suppressed. Therefore, it becomes difficult to release the screw connection of both connectors. However, in the connection guarantee device described in Patent Document 1, there is still room for improvement in suppressing the relative rotation between the patient end connector and the blood line connector.

It is an object of the present disclosure to provide a connection holder and a connection holder set capable of holding a connected state of two medical devices that can be disconnected by relatively rotating.

The connection holder as the first aspect of the present invention is a connection holder attached to two medical devices whose connection state can be released by relatively rotating, and is the above-mentioned two medical devices. A first engaging portion that engages with one medical device and regulates the relative rotation of the one medical device with respect to the other medical device in the release direction side, and engages with the other medical device. A second engaging portion that regulates the relative rotation of the other medical device to the side opposite to the release direction side with respect to the one medical device is provided.

As one embodiment of the present invention, the first engaging portion is arranged adjacent to the release direction side in the rotation circumferential direction with respect to a part of the one medical device, and the one medical device is provided. Provided is a contact wall portion that restricts the rotation of the one medical device in the rotation circumferential direction toward the release direction side by abutting on the part of the medical device.

As one embodiment of the present invention, when the contact wall portion is used as the first contact wall portion, the second engaging portion has the rotation circumference with respect to a part of the other medical device. It is arranged adjacent to the side opposite to the release direction side in the direction, and is opposite to the release direction side in the rotation circumferential direction of the other medical device by abutting on the part of the other medical device. It is provided with a second contact wall portion that restricts rotation to the side.

As one embodiment of the present invention, there is a third embodiment in which the two medical devices are engaged with at least one of the medical devices and the movement of the two medical devices in the direction of the central axis parallel to the rotation center axis is restricted. It has an engaging part.

The connection holder as one embodiment of the present invention extends over the two medical devices and includes a peripheral cover portion that covers the periphery of the two medical devices, and the peripheral cover portion is hollow inside. The first engaging portion and the second engaging portion are provided with a plurality of protruding portions protruding toward the portions, and the first engaging portion and the second engaging portion are configured by the protruding portions.

The connection holder set as the second aspect of the present invention can be attached to the connection holder and the connection holder, and is attached to the connection holder, and the two are attached to the connection holder. It comprises a cover member that wraps around another medical device that is connected to one of the medical devices.

As one embodiment of the present invention, the cover member is rotatably attached to the connection holder.

As one embodiment of the present invention, the cover member is formed with a gap extending along the entire axial direction in a part of the circumferential direction.

According to the present disclosure, it is possible to provide a connection holder and a connection holder set capable of holding a connected state of two medical devices that can be disconnected by relatively rotating.

It is a perspective view which shows the connection holder set as one Embodiment, and three medical instruments to which this connection holder set is attached. It is a perspective view which looked at the connection holder set and three medical instruments shown in FIG. 1 from the viewpoint different from FIG. It is a figure which shows the appearance of the connection body formed by connecting three medical instruments shown in FIG. 1 in series. It is sectional drawing of the connection body shown in FIG. It is a figure which shows the non-wearing form about the connection holder as one embodiment of the connection holder set shown in FIG. It is a figure which shows the mounting form about the connection holder shown in FIG. It is a perspective view which shows the cover member of the connection holder set shown in FIG. It is a perspective view which shows the connection holder set in the state where the cover member shown in FIG. 7 is attached to the connection holder shown in FIG. It is a perspective view which shows the cover member as a modification of the cover member shown in FIG. 7. The appearance of the connection holder shown in FIG. 1 before being attached to the connection body shown in FIG. 3 and before the cover member shown in FIG. 1 is attached to the connection holder is shown. It is a figure. It is sectional drawing in the state shown in FIG. It is a figure which shows the appearance of the state where the connection holder shown in FIG. 1 is attached to the connection body shown in FIG. 3, and the state before the cover member shown in FIG. 1 is attached to the connection holder. It is sectional drawing in the state shown in FIG. It is a figure which shows the appearance of the state where the connection holder shown in FIG. 1 is attached to the connection body shown in FIG. 3, and the state where the cover member shown in FIG. 1 is attached to the connection holder. It is sectional drawing in the state shown in FIG.

Hereinafter, embodiments of the connection holder and the connection holder set according to the present disclosure will be described with reference to FIGS. 1 to 15. The same reference numerals are given to common members / parts in each figure.

1 and 2 are perspective views showing a connection holder set 10 as the present embodiment and three medical devices 100, 200, and 300 to which the connection holder set 10 is mounted. The connection holder set 10 includes a connection holder 1 and a cover member 2 that can be attached to the connection holder 1. Hereinafter, for convenience of explanation, the medical device 100 will be referred to as a “first medical device 100”, the medical device 200 will be referred to as a “second medical device 200”, and the medical device 300 will be referred to as a “third medical device 300”.

FIG. 3 is a diagram showing the appearance of a connecting body 500 configured by connecting the first medical device 100, the second medical device 200, and the third medical device 300 of the present embodiment in series. FIG. 4 is a cross-sectional view of the connecting body 500. As shown in FIG. 4, inside the connecting body 500, a hollow portion 100a in which the first medical instrument 100 is internally partitioned, a hollow portion 200a in which the second medical instrument 200 is internally partitioned, and a third medical instrument 300 are provided. A flow path 500a is formed in which the hollow portion 300a and the hollow portion 300a are communicated with each other. Although the details will be described later, the flow path 500a of the present embodiment has the central axis of the hollow portion 100a of the first medical instrument 100, the central axis of the hollow portion 200a of the second medical instrument 200, and the hollow of the third medical instrument 300. The central axis of the portion 300a extends linearly so as to be aligned in a straight line. In other words, the central axis O of the flow path 500a of the present embodiment substantially coincides with the central axes of the hollow portion 100a, the hollow portion 200a, and the hollow portion 300a.

Further, the flow path 500a of the connecting body 500 of the present embodiment constitutes at least a part of the infusion line. Therefore, a liquid such as a chemical solution is administered into the living body through the flow path 500a of the connecting body 500. Hereinafter, for convenience of explanation, the upstream side of the flow path when the liquid such as a chemical solution is supplied into the living body through the flow path 500a is simply referred to as “upstream side of the flow path”, and the liquid such as the chemical solution is produced through the flow path 500a. The upstream side of the flow path when supplied into the body is simply referred to as the "downstream side of the flow path".

5 and 6 are views showing the connection holder 1 of the present embodiment. The connection holder 1 can be attached to two connected medical devices. Specifically, the connection holder 1 of the present embodiment can be attached to the first medical device 100 (see FIG. 1 and the like) and the second medical device 200 (see FIG. 1 and the like). FIG. 5 is a diagram showing a non-wearing form, which is a form when the connection holder 1 is not attached to the first medical device 100 and the second medical device 200. Further, FIG. 6 is a diagram showing a mounting form in which the connection holder 1 is mounted on the first medical device 100 and the second medical device 200. 5 (a) and 6 (a) are views showing end faces on the upstream side of the flow path when attached to the first medical device 100 and the second medical device 200. FIG. 5B is a diagram showing an inner surface of the connection holder 1 exposed by the non-wearing form. FIG. 6B is a side view of the connection holder 1 in a mounted form.

The connection holder 1 can hold the connected state of the two medical devices by being attached to the two medical devices. The connection holder 1 of the present embodiment is attached to the first medical device 100 (see FIG. 1 and the like) and the second medical device 200 (see FIG. 1 and the like), whereby the first medical device 100 and the second medical device 100 and the second medical device 200 are attached. The connected state of the medical device 200 can be maintained. The details of this holding mechanism will be described later.

FIG. 7 is a diagram showing the cover member 2 of the present embodiment. FIG. 8 is a diagram showing a connection holder set 10 in a state where the cover member 2 is attached to the connection holder 1. As shown in FIGS. 7 and 8, the cover member 2 has a cylindrical shape, and is fitted to the connection holder 1 by fitting with one end of the connection holder 1 on the upstream side of the flow path in the mounted form. On the other hand, it can be installed.

Hereinafter, with reference to FIGS. 1 to 8, further details of the first medical instrument 100, the second medical instrument 200, the third medical instrument 300, the connection holder 1, and the cover member 2 will be described.

[First medical device 100]
The first medical device 100 of the present embodiment is a tubular member. As shown in FIGS. 1 and 2, one end of the tubular member as the first medical device 100 of the present embodiment on the upstream side of the flow path is connected to a connector portion 202 described later of the second medical device 200. A female connector portion is provided as the connector portion 101. More specifically, in the present embodiment, the tubular member as the first medical device 100 is a catheter such as a central venous catheter inserted into the vessel of a living body, and the female connector portion as the connector portion 101 is a catheter hub 111. Is.

More specifically, as shown in FIGS. 1 and 2, the tubular member as the first medical device 100 of the present embodiment is represented by a flexible catheter body 110 (in FIGS. 1 to 3 by a two-dot chain line). (Not shown in FIG. 4), and a catheter hub 111 attached to one end of the catheter body 110 on the upstream side of the flow path.

As shown in FIGS. 1 and 2, the catheter hub 111 of the present embodiment has a cylindrical hub main body 111a and a first protruding portion that protrudes radially outward from the outer peripheral surface of the hub main body 111a. The 111b is provided with a second protruding portion 111c that protrudes outward in the radial direction from the outer peripheral surface of the hub main body portion 111a at a position facing the first protruding portion 111b in the radial direction.

As shown in FIGS. 1 and 2, a male screw portion 112 is formed on the outer surface of the hub main body portion 111a. More specifically, the male screw portion 112 of the present embodiment is formed at one end of the outer surface of the hub main body portion 111a on the upstream side of the flow path. The male connector portion as the connector portion 202 described later of the second medical instrument 200 is inserted into the hub main body portion 111a and is connected by screwing with the male screw portion 112 (see FIG. 4). More specifically, the connector portion 101 of the present embodiment is configured by the catheter hub 111. The catheter hub 111 as the connector portion 101 constitutes a luer lock type female connector portion conforming to ISO80369-7. That is, the connector portion 101 of the first medical instrument 100 and the connector portion 202 of the second medical instrument 200 are screwed and connected by relatively rotating.

Further, as shown in FIG. 4, the catheter hub 111 as the connector portion 101 of the present embodiment partitions one end of the hollow portion 100a of the first medical device 100 on the upstream side of the flow path. One end of the hollow portion 100a on the upstream side of the flow path is not closed, and when the second medical device 200 is not connected, the hollow portion 100a is in an open state open to the outside. On the other hand, one end of the hollow portion 100a on the upstream side of the flow path is connected to the second medical instrument 200 so as to communicate with the hollow portion 200a of the second medical instrument 200 in a liquid-tight manner.

As shown in FIGS. 1 to 4, since the first protruding portion 111b and the second protruding portion 111c protrude outward in the radial direction from the outer peripheral surface of the hub main body portion 111a, medical personnel such as doctors and nurses Can operate the catheter hub 111 by gripping the first protrusion 111b and the second protrusion 111c. By providing the first protruding portion 111b and the second protruding portion 111c in this way, the operability of the catheter hub 111 can be improved.

More specifically, the first protruding portion 111b and the second protruding portion 111c of the present embodiment are configured by a plate-shaped portion whose thickness direction is the circumferential direction of the hub main body portion 111a. Further, the first protruding portion 111b and the second protruding portion 111c of the present embodiment have different lengths in the central axis direction of the hub main body portion 111a, but may have the same length.

The number, shape, position, and size of the protrusions protruding outward in the radial direction from the outer surface of the hub main body 111a are not particularly limited. Therefore, the present invention is not limited to the plate-shaped first protruding portion 111b and the second protruding portion 111c, and may be, for example, a protruding portion composed of an annular flange portion having an outer diameter larger than that of the hub main body portion 111a.

The material of the catheter main body 110 is not particularly limited, but a resin material, particularly a soft resin material is suitable, and for example, polytetrafluoroethylene (PTFE), ethylene / tetrafluoroethane copolymer (ETFE), and bellfluoroalkoxyfluorine. Fluororesin such as resin (PFA), olefin resin such as polyethylene and polypropylene or a mixture thereof, polyurethane, polyester, polyamide, polyether nylon resin, a mixture of the olefin resin and an ethylene-vinyl acetate copolymer, etc. Can be mentioned.

The material of the catheter hub 111 is not particularly limited. The catheter hub 111 of this embodiment is made of polypropylene. However, the material of the catheter hub 111 is preferably made of a material that is harder than the catheter body 110. As the material of the catheter hub 111, in addition to polypropylene, for example, a thermoplastic resin such as polycarbonate, polyamide, polysulfone, polyarylate, and methacrylate-butylene-styrene copolymer can be preferably used.

<Connector portion 101 of the first medical device 100>
As described above, the tubular member as the first medical device 100 of the present embodiment includes a female connector portion for partitioning a hollow portion into which a male connector portion can be inserted on the upstream side of the flow path. That is, the connector portion 101 of the first medical device 100 of the present embodiment is a female connector portion configured by the catheter hub 111 that partitions the hollow portion. As described above, the male screw portion 112 is formed on the outer surface of the hub main body portion 111a of the catheter hub 111. When the male screw portion 112 is connected to the male connector portion as the connector portion 202 of the second medical instrument 200, the female screw portion 221 described later is provided in the male connector portion as the connector portion 202 (see FIG. 2 and the like). Screw with. More specifically, the connector portion 101 of the first medical device 100 of the present embodiment is a luer lock type female connector portion conforming to ISO80369-7.

[Second medical device 200]
The second medical device 200 of the present embodiment is a medical connector. As shown in FIGS. 1 and 2, one end of the medical connector as the second medical instrument 200 of the present embodiment on the upstream side of the flow path is connected to the connector portion 301 described later of the third medical instrument 300. A female connector portion is provided as the connector portion 201. Further, as shown in FIGS. 1 and 2, at one end on the downstream side of the flow path, which is the other end of the medical connector as the second medical device 200 of the present embodiment, the above-mentioned first medical device 100 is described. A male connector portion as a connector portion 202, which is connected to the connector portion 101, is provided. More specifically, the medical connector as the second medical device 200 of the present embodiment is a straight type I-shaped connector that is not provided with a mixed injection port and extends linearly.

The female connector portion as the connector portion 201 of the second medical instrument 200 is a luer lock type female connector portion conforming to ISO80369-7. Further, the male connector portion as the connector portion 202 of the second medical device 200 is a luer lock type male connector portion conforming to ISO80369-7. The details will be described later.

Further, as shown in FIG. 4, in the present embodiment, the female connector portion as the connector portion 201 of the second medical instrument 200 partitions one end of the hollow portion 200a of the second medical instrument 200 on the upstream side of the flow path. ing. As shown in FIG. 1, one end of the hollow portion 200a (see FIG. 4) on the upstream side of the flow path is closed by arranging the elastic valve body 211. That is, one end of the hollow portion 200a on the upstream side of the flow path is in a closed state that is not open to the outside when the third medical device 300 is not connected. On the other hand, as shown in FIG. 4, the elastic valve body 211 opens the hollow portion 200a by connecting the third medical instrument 300 to one end of the hollow portion 200a on the upstream side of the flow path, and the third medical instrument It communicates liquid-tightly with the hollow portion 300a of 300.

Further, as shown in FIG. 4, in the present embodiment, the male connector portion as the connector portion 202 of the second medical instrument 200 partitions one end of the hollow portion 200a of the second medical instrument 200 on the downstream side of the flow path. ing. As shown in FIG. 2, one end of the hollow portion 200a on the downstream side of the flow path is not closed, and when the first medical device 100 is not connected, the hollow portion 200a is in an open state open to the outside. On the other hand, as shown in FIG. 4, one end of the hollow portion 200a on the downstream side of the flow path is intimately communicated with the hollow portion 100a of the first medical instrument 100 by connecting the first medical instrument 100. ..

Hereinafter, further details of the second medical device 200 of the present embodiment will be described with reference to FIGS. 1 to 4.

As described above, the second medical device 200 of the present embodiment is a medical connector, which is a luer lock type female connector portion conforming to ISO80369-7 as a connector portion 201 and ISO80369- as a connector portion 202. It is equipped with a luer lock type male connector unit conforming to No. 7.

More specifically, as shown in FIG. 4, the medical connector as the second medical device 200 of the present embodiment has a housing 210 for partitioning the hollow portion 200a and a slit 212, and closes the hollow portion 200a. The elastic valve body 211 and the like are provided. The hollow portion 200a has an insertion portion 213 into which a male connector portion as a connector portion 301 of the third medical instrument 300 is inserted from the outside, and a flow path 214 communicating with the insertion portion 213, and is an elastic valve body. 211 closes the insertion portion 213. As shown in FIG. 4, the slit 212 of the elastic valve body 211 is opened by inserting the male connector portion as the connector portion 301 of the third medical instrument 300 into the insertion portion 213. The "flow path communicating with the insertion portion" means not only a flow path directly connected to the insertion portion but also a flow path connected to the insertion portion via another space. The flow path 214 of the present embodiment is a flow path that is directly connected to the insertion portion 213.

The housing 210 has a cap 215 for partitioning the insertion portion 213 into which the male connector portion as the connector portion 301 of the third medical device 300 is inserted from the outside, and a holder 216 for partitioning the flow path 214 and supporting the cap 215. And.

The cap 215 has a top surface cap 217 and a bottom surface cap 218, and the elastic valve body 211 is compressed and sandwiched by the top surface cap 217 and the bottom surface cap 218 in the hollow portion 200a, specifically, the insertion portion 213. The position within is fixed.

The holder 216 is a member that partitions the flow path 214 and supports the top surface cap 217 and the bottom surface cap 218. In the present embodiment, both the top surface cap 217 and the bottom surface cap 218 are supported by contacting the holder 216, but the bottom surface cap 218 is held by the top surface cap 217 and only the top surface cap 217 is supported. It may be configured to be in contact with the holder 216 and supported by the holder 216. On the contrary, the top surface cap 217 may be held by the bottom surface cap 218, and only the bottom surface cap 218 may be brought into contact with the holder 216 to be supported by the holder 216.

In the present embodiment, the top cap 217 and the bottom cap 218 partition the insertion portion 213. Further, the holder 216 separates a part of the insertion portion 213 and the flow path 214.

As the material of the holder 216 constituting the housing 210 and the top cap 217 and the bottom cap 218 as the cap 215, for example, a polyolefin such as polyethylene, polypropylene, or an ethylene-propylene copolymer; an ethylene-vinyl acetate copolymer; (EVA); Polyvinyl chloride; Polyvinylidene chloride; Polystyrene; Polyethylene; Polyethylene; Polyamideimide; Polycarbonate; Poly- (4-methylpentene-1); Ionomer; Acrylic resin; Polymethylmethacrylate; Acrylonitrile-butadiene-styrene co-weight Combined (ABS resin); Acrylonitrile-styrene copolymer (AS resin); butadiene-styrene copolymer; Polyethylene such as polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polycyclohexane terephthalate (PCT); polyether; Polyetherketone (PEK); Polyetheretherketone (PEEK); Polyetherimide; Polyacetal (POM); Polyphenylene oxide; Modified polyphenylene oxide; Polysulfone; Polyethersulfone; Polyphenylene sulfide; Polyallylate; Aromatic polyester (liquid crystal polymer) ); Various resin materials such as polytetrafluoroethylene, polyfluorovinylidene, and other fluororesins; can be mentioned. Further, a blend containing one or more of these, a polymer alloy, or the like may be used. In addition, various glass materials, ceramic materials, and metal materials may be used.

As shown in FIG. 4, the top surface cap 217 includes a substantially cylindrical hollow cylinder portion and a flange portion provided on one end side of the hollow cylinder portion. As shown in FIG. 4, the upper surface (the left side surface in FIG. 4) located on the other end side of the hollow tubular portion of the top surface cap 217 has an edge for partitioning a substantially circular insertion opening which is one end of the insertion portion 213. There is a portion 219, and a male screw portion 220 is formed on the outer surface of the hollow tubular portion of the top cap 217 so that it can be screwed and joined with a luer lock type male connector portion conforming to ISO80369-7. Has been done. The flange portion of the top surface cap 217 is a portion molded integrally with the hollow tubular portion of the top surface cap 217, and the flange portion of the top surface cap 217 engages with the holder 216 to hold the top surface cap 217. It is held at 216.

As shown in FIG. 4, the bottom cap 218, like the top cap 217, includes a substantially cylindrical hollow cylinder portion and a flange portion provided on one end side of the hollow cylinder portion. The bottom surface cap 218 is joined to the inner surface of the hollow tubular portion of the top surface cap 217 and / or the lower surface of the flange portion of the top surface cap 217 (the surface on the right side in FIG. 4) by ultrasonic fusion or the like. Further, the bottom cap 218 is supported by the holder 216.

In the present embodiment, the top surface cap 217 and the bottom surface cap 218 sandwich the elastic valve body 211 and hold the elastic valve body 211 in the insertion portion 213. For example, the holder 216 and the bottom surface in the present embodiment are configured. The elastic valve body 211 may be compressed and sandwiched between the holder in which the cap 218 is integrated and the top surface cap 217 of the present embodiment. That is, the housing of the medical connector is not limited to the one composed of three members of the holder, the top cap and the bottom cap, but may be composed of two or less members, and may be composed of four or more members. You may.

Next, the detailed configuration of the holder 216 of the present embodiment will be described. As shown in FIGS. 2 and 4, the holder 216 of the present embodiment has a substantially cylindrical outer cylinder portion 222 in which a female screw portion 221 is formed on the inner surface thereof, and a hollow portion in which the inner surface of the outer cylinder portion 222 is partitioned. It is provided with a cylindrical male lure portion 223 provided in the above, and a connecting portion 224 for connecting the outer cylinder portion 222 and the male lure portion 223 at the end portions of the outer cylinder portion 222 and the male lure portion 223 on the upstream side of the flow path. In the holder 216 of the present embodiment, the inner surface of the male lure portion 223 and the inner surface of the connecting portion 224 partition the flow path 214.

The tubular male lure portion 223 has a 6% tapered outer surface according to ISO80369-7. Further, the female screw portion 221 formed on the inner surface of the outer cylinder portion 222 can be screwed with the male screw portion of the female connector portion of the luer lock type conforming to ISO80369-7. That is, as shown in FIG. 4, the female screw portion 221 formed on the inner surface of the outer cylinder portion 222 has the male lure portion 223 in the hub main body portion 111a of the female connector portion as the connector portion 101 of the first medical instrument 100. When it is inserted and connected, it can be screwed with the male screw portion 112 formed on the outer surface of the hub main body portion 111a.

As shown in FIGS. 1 to 3, a convex portion 224a projecting outward in the radial direction is formed on the outer surface of the connecting portion 224 of the holder 216. A plurality of convex portions 224a are formed at intervals in the circumferential direction. In other words, the concave portion 224b is partitioned between the convex portions 224a adjacent to each other in the circumferential direction. That is, on the outer surface of the connecting portion 224 of the present embodiment, an uneven portion that repeats unevenness along the circumferential direction is formed.

The elastic valve body 211 closes the insertion portion 213 in a state where the male connector portion as the connector portion 301 of the third medical instrument 300 is not inserted into the insertion portion 213. Specifically, the elastic valve body 211 of the present embodiment is held at the position of the insertion portion 213 by being compressed and sandwiched by the top surface cap 217 and the bottom surface cap 218 of the housing 210.

As shown in FIGS. 1 and 4, the elastic valve body 211 is elastically deformed when the male connector portion as the connector portion 301 of the third medical instrument 300 is inserted or removed from the insertion portion 213. At that time, the slit 212 of the elastic valve body 211 opens and closes. Specifically, as shown in FIG. 4, when the male connector portion as the connector portion 301 of the third medical device 300 is inserted into the insertion portion 213, the slit 212 is opened. As a result, the hollow portion 200a of the second medical device 200 and the hollow portion 300a of the third medical device 300 communicate with each other. On the contrary, when the male connector portion as the connector portion 301 of the third medical device 300 is removed from the insertion portion 213, the slit 212 is closed as shown in FIG. As a result, the insertion portion 213 (see FIG. 4) is closed, and even if a liquid such as a chemical solution remains in the hollow portion 200a of the second medical device 200, it is possible to prevent the liquid from leaking from the insertion portion 213.

The elastic valve body 211 is molded and elastically deformable. Examples of the material of the elastic valve body 211 include natural rubber, isoprene rubber, butadiene rubber, styrene-butadiene rubber, nitrile rubber, chloroprene rubber, butyl rubber, acrylic rubber, ethylene-propylene rubber, hydrin rubber, urethane rubber, and silicone rubber. Various rubber materials such as fluororubber, and various heats such as styrene-based, polyolefin-based, polyvinyl chloride-based, polyurethane-based, polyester-based, polyamide-based, polybutadiene-based, transpolyisoprene-based, fluororubber-based, and chlorinated polyethylene-based. Examples thereof include plastic elastoma, and one or a mixture of two or more of these may be used.

The hardness of the elastic valve body 211 is preferably 20 to 60 ° (A hardness). As a result, an appropriate elastic force can be secured for the elastic valve body 211, so that the elastic valve body 211 can be elastically deformed, which will be described later.

<Connector section 201 of the second medical device 200>
As described above, the medical connector as the second medical device 200 of the present embodiment includes a female connector portion for partitioning the insertion portion 213 into which the male connector portion can be inserted on the upstream side of the flow path. That is, the connector portion 201 of the second medical device 200 of the present embodiment is a female connector portion composed of a top surface cap 217 and a bottom surface cap 218 for partitioning the insertion portion 213. As described above, a male screw portion 220 is formed on the outer surface of the top surface cap 217. The male screw portion 220 is screwed with a female screw portion 312 described later provided in the male connector portion as the connector portion 301 when connecting to the male connector portion as the connector portion 301 of the third medical instrument 300. More specifically, the connector portion 201 of the second medical device 200 of the present embodiment is a luer lock type female connector portion conforming to ISO80369-7.

<Connector part 202 of the second medical device 200>
As described above, the medical connector as the second medical instrument 200 of the present embodiment includes a male connector portion having a tubular male lure portion 223 that can be inserted into the female connector portion on the downstream side of the flow path. That is, the connector portion 202 of the second medical device 200 of the present embodiment is a male connector portion composed of a holder 216 including the male lure portion 223. As described above, the holder 216 includes an outer cylinder portion 222 in which the female screw portion 221 is formed on the inner surface. The female screw portion 221 of the outer cylinder portion 222 is screwed with the male screw portion 112 provided in the female connector portion as the connector portion 101 when connecting to the female connector portion as the connector portion 101 of the first medical instrument 100. do. More specifically, the connector portion 202 of the second medical device 200 of the present embodiment is a luer lock type male connector portion conforming to ISO80369-7, which is composed of a holder 216 including an outer cylinder portion 222 and a male luer portion 223. Is.

[Third medical device 300]
The third medical device 300 of the present embodiment is a tubular member. As shown in FIGS. 1 and 2, one end of the tubular member as the third medical device 300 of the present embodiment on the downstream side of the flow path is connected to the connector portion 201 of the second medical device 200. A male connector portion is provided as the connector portion 301. More specifically, in the present embodiment, the tubular member as the third medical device 300 is a medical tube to which a liquid such as a chemical solution is supplied from the upstream side of the flow path. Further, the connector portion 301 of the third medical instrument 300 of the present embodiment is a luer lock type male connector portion compliant with ISO80369-7 provided at one end on the downstream side of the flow path of the medical tube.

As shown in FIG. 4, in the present embodiment, the male connector portion as the connector portion 301 of the third medical instrument 300 partitions one end of the hollow portion 300a of the third medical instrument 300 on the downstream side of the flow path. .. As shown in FIG. 2, one end of the hollow portion 300a on the downstream side of the flow path is not closed, and when the second medical device 200 is not connected, the hollow portion 300a is in an open state open to the outside. On the other hand, as shown in FIG. 4, one end of the hollow portion 300a on the downstream side of the flow path is intimately communicated with the hollow portion 200a of the second medical instrument 200 by connecting the second medical instrument 200. ..

Hereinafter, further details of the third medical device 300 of the present embodiment will be described with reference to FIGS. 1 to 4.

As shown in FIGS. 1 and 2, the medical tube as the third medical device 300 of the present embodiment has a flexible tube main body 310 (indicated by a two-dot chain line in FIGS. 1 to 3; FIG. 4). (Not shown) and a medical connector 311 attached to one end of the tube body 310 on the downstream side of the flow path. The hollow portion 300a of the third medical device 300 is composed of a hollow portion of the tube main body 310 and a hollow portion of the medical connector 311.

As shown in FIGS. 1 to 4, the medical connector 311 includes a tube connection portion 311a located at one end on the upstream side of the flow path, a tubular male lure portion 311b located at one end on the downstream side of the flow path, and the like. The male lure portion 311b is provided with a substantially cylindrical outer cylinder portion 311c located on the outer side in the radial direction and having a female screw portion 312 formed on the inner surface thereof. In the present embodiment, the male connector portion as the connector portion 301 of the third medical instrument 300 is composed of the male lure portion 311b and the outer cylinder portion 311c of the medical connector 311. The details will be described later.

The tube connecting portion 311a is fixed to the tube main body 310 in a state of being inserted into the tube main body 310 through an opening on the downstream side of the flow path of the tube main body 310. The fixing of the tube connecting portion 311a and the tube main body 310 can be realized by various methods such as welding by ultrasonic welding or close contact by press fitting.

The osluer portion 311b has a 6% tapered outer surface according to ISO80369-7. Further, as shown in FIG. 4, the female screw portion 312 formed on the inner surface of the outer cylinder portion 311c can be screwed with the male screw portion of the female connector portion of the luer lock type conforming to ISO80369-7. That is, as shown in FIG. 4, the female screw portion 312 formed on the inner surface of the outer cylinder portion 311c is connected by inserting the male lure portion 311b into the female connector portion as the connector portion 201 of the second medical instrument 200. In addition, it can be screwed with the male screw portion 220 formed on the outer surface of the top surface cap 217.

As shown in FIGS. 1 and 2, a convex rib 313 protruding outward in the radial direction and extending in the central axis direction is formed on the outer surface of the outer cylinder portion 311c. A plurality of convex ribs 313 are formed at intervals in the circumferential direction. A concave portion 314 is partitioned between the convex ribs 313 adjacent to each other in the circumferential direction. That is, on the outer surface of the outer cylinder portion 311c of the present embodiment, an uneven portion that repeats unevenness along the circumferential direction is formed.

The osluer portion 311b and the outer cylinder portion 311c are connected at the ends on the upstream side of the respective flow paths.

The material of the tube body 310 is not particularly limited, and examples thereof include soft polyvinyl chloride, ethylene-vinyl acetate copolymer, polyethylene, polypropylene, polybutadiene, and the like, or materials mainly containing these.

The material of the medical connector 311 is, for example, a polyolefin such as polyethylene, polypropylene, or an ethylene-propylene copolymer; ethylene-vinyl acetate copolymer (EVA); polyvinyl chloride; polyvinylidene chloride; polystyrene; polyamide; polyimide; polyamide. Imid; Polycarbonate; Poly- (4-methylpentene-1); Ionomer; Acrylic resin; Polymethylmethacrylate; Acrylonitrile-butadiene-styrene copolymer (ABS resin); Acrylonitrile-styrene copolymer (AS resin); butadiene- Styrene copolymer; polyesters such as polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polycyclohexane terephthalate (PCT); polyether; polyetherketone (PEK); polyetheretherketone (PEEK); polyetherimide; Polyacetal (POM); Polyphenylene oxide; Modified polyphenylene oxide; Polysulfone; Polyethersulfone; Polyphenylene sulfide; Polyallylate; Aromatic polyester (liquid crystal polymer); Polytetrafluoroethylene, Polyfluorinated vinylidene, and other fluororesins; Examples include resin materials. Further, a blend containing one or more of these, a polymer alloy, or the like may be used. In addition, various glass materials, ceramic materials, and metal materials may be used.

<Connector section 301 of the third medical device 300>
As described above, the tubular member as the third medical instrument 300 of the present embodiment includes a male connector portion having a tubular male lure portion 311b that can be inserted into the female connector portion on the downstream side of the flow path. That is, the connector portion 301 of the third medical device 300 of the present embodiment is a male connector portion composed of the medical connector 311 including the male luer portion 311b. As described above, the medical connector 311 includes an outer cylinder portion 311c in which the female screw portion 312 is formed on the inner surface. The female screw portion 312 of the outer cylinder portion 311c is screwed with the male screw portion 220 provided in the female connector portion as the connector portion 201 when connecting to the female connector portion as the connector portion 201 of the second medical instrument 200. do. More specifically, the connector portion 301 of the third medical device 300 of the present embodiment is a luer lock type male conforming to ISO80369-7, which is composed of a medical connector 311 including an outer cylinder portion 311c and a male luer portion 311b. It is a connector part.

[Connection holder 1]
As shown in FIGS. 1, 2, 5, and 6, the connection holder 1 of the present embodiment has the first medical device 100 and the second medical device 200 in the connected state shown in FIGS. 3 and 4. A peripheral cover portion 11 that covers the periphery of the wall is provided. The peripheral cover portion 11 of the present embodiment extends over the first medical device 100 and the second medical device 200 in the connected state, and the first medical device 100 and the second medical device in the connected state. It can cover around 200 (see FIGS. 10-15). As shown in FIG. 5 and the like, the peripheral cover portion 11 of the present embodiment includes a semi-cylindrical first cover portion 11a, a semi-cylindrical second cover portion 11b, a first cover portion 11a, and a second cover portion. It is composed of a peripheral cover member including a hinge portion 11c for connecting the 11b. More specifically, in the present embodiment, the entire connection holder 1 is composed of a peripheral cover member 11 provided with a peripheral cover portion 11 and integrally molded.

As shown in FIGS. 5 and 6, in the peripheral cover member as the connection holder 1 of the present embodiment, the first cover portion 11a and the second cover portion 11b are not mounted by the hinge portion 11c (see FIG. 5). ) And the mounting form (see FIG. 6). Specifically, from the non-mounting form shown in FIG. 5, the hinge portion 11c is deformed so that the concave inner surface of the first cover portion 11a and the concave inner surface of the second cover portion 11b face each other. When the inner surfaces of the semi-cylindrical first cover portion 11a and the semi-cylindrical second cover portion 11b face each other, the form changes to the substantially cylindrical mounting form shown in FIG.

As shown in FIG. 1 and the like, on the convex outer surface of the first cover portion 11a, the locking receiving hole 12 is partitioned at a position facing the position where the hinge portion 11c is connected in the radial direction. A stop 13 is provided. More specifically, a hinge portion 11c is provided at one end of the outer surface of the semi-cylindrical first cover portion 11a in the circumferential direction. At the end of the outer surface of the semi-cylindrical first cover portion 11a on the other side in the circumferential direction, a first locking portion 13 projecting toward the other side in the circumferential direction is provided.

As shown in FIG. 5, the convex outer surface of the second cover portion 11b has a second locking portion formed by a protrusion at a position facing the position where the hinge portion 11c is connected in the radial direction. 14 is provided. More specifically, a hinge portion 11c is provided at one end of the outer surface of the semi-cylindrical second cover portion 11b in the circumferential direction. A second locking portion 14 formed of a protrusion is provided at the other end of the outer surface of the semi-cylindrical second cover portion 11b in the circumferential direction.

In the peripheral cover member as the connection holder 1 of the present embodiment, the first locking portion 13 is composed of a protrusion when the form is changed from the non-mounted form (see FIG. 5) to the mounted form (see FIG. 6). The second locking portion 14 is deformed so as to change. By fitting the second locking portion 14 configured by the protrusion into the locking receiving hole 12 in which the first locking portion 13 is partitioned, the form change to the mounting form (see FIG. 6) is completed. At the same time, the mounting form is held by the first locking portion 13 and the second locking portion 14.

As shown in FIG. 5, the semi-cylindrical first cover portion 11a protrudes inward in the radial direction from the cover main body portion 19a extending in the circumferential direction and the concave inner surface of the cover main body portion 19a. It is provided with two flange portions. Specifically, as shown in FIG. 5B, in the first cover portion 11a of the present embodiment, the connection holder 1 is connected to the first medical device 100 (see FIG. 1 and the like) and the second medical device. The first flange portion 15a, the second flange portion 16a, and the third flange portion 15a, in order from one side (the left side in FIG. 5B), which is the upstream side of the flow path when mounted on the 200 (see FIG. 1 and the like). A flange portion 17a and a fourth flange portion 18a are formed.

Further, as shown in FIG. 5, the semi-cylindrical second cover portion 11b protrudes inward in the radial direction from the cover main body portion 19b extending in the circumferential direction and the concave inner surface of the cover main body portion 19b. It is provided with four flange portions. Specifically, as shown in FIG. 5B, in the second cover portion 11b of the present embodiment, the connection holder 1 is connected to the first medical device 100 (see FIG. 1 and the like) and the second medical device. The first flange portion 15b and the second flange are in order from one side (the left side in FIG. 5 (b)) which is the upstream side of the flow path in the central axis direction B when mounted to 200 (see FIG. 1 and the like). A portion 16b, a third flange portion 17b, and a fourth flange portion 18b are formed.

As shown in FIG. 5B, the first flange portion 15a of the first cover portion 11a and the first flange portion 15b of the second cover portion 11b are located at substantially equal positions in the central axis direction B. Further, in the mounting form of the connection holder 1 (see FIG. 6), the end face on the radial inner side of the first flange portion 15a of the first cover portion 11a and the radial inner side of the first flange portion 15b of the second cover portion 11b. Is arranged so as to face each other in the radial direction.

As shown in FIG. 5B, the first flange portion 15a of the first cover portion 11a of the present embodiment extends in the circumferential direction over the entire area of a semicircle in the circumferential direction. Further, the first flange portion 15b of the second cover portion 11b of the present embodiment also extends in the circumferential direction over the entire area of the semicircle in the circumferential direction. Therefore, in the mounting form of the connection holder 1 (see FIG. 6), the first flange portion 15a of the first cover portion 11a and the first flange portion 15b of the second cover portion 11b extend over the entire circumferential direction. An annular flange is formed.

As shown in FIG. 5B, the second flange portion 16a of the first cover portion 11a and the second flange portion 16b of the second cover portion 11b are located at substantially equal positions in the central axis direction B. Further, in the mounting form of the connection holder 1 (see FIG. 6), the end face on the radial inner side of the second flange portion 16a of the first cover portion 11a and the radial inner side of the second flange portion 16b of the second cover portion 11b. Is arranged so as to face each other in the radial direction.

The second flange portion 16a of the first cover portion 11a of the present embodiment extends in the circumferential direction over the entire area of the semicircle in the circumferential direction. Further, the second flange portion 16b of the second cover portion 11b of the present embodiment also extends in the circumferential direction over the entire area of the semicircle in the circumferential direction. Therefore, in the mounting form of the connection holder 1 (see FIG. 6), the second flange portion 16a of the first cover portion 11a and the second flange portion 16b of the second cover portion 11b extend over the entire circumferential direction. An annular flange is formed.

As shown in FIG. 5B, the third flange portion 17a of the first cover portion 11a and the third flange portion 17b of the second cover portion 11b are located at substantially equal positions in the central axis direction B. Further, in the mounting form of the connection holder 1 (see FIG. 6), the end face on the radial inner side of the third flange portion 17a of the first cover portion 11a and the radial inner side of the third flange portion 17b of the second cover portion 11b. Is arranged so as to face each other in the radial direction.

The third flange portion 17a of the first cover portion 11a of the present embodiment extends in the circumferential direction over the entire area of the semicircle in the circumferential direction. Further, the third flange portion 17b of the second cover portion 11b of the present embodiment also extends in the circumferential direction over the entire area of the semicircle in the circumferential direction. Therefore, in the mounting mode of the connection holder 1 (see FIG. 6), the third flange portion 17a of the first cover portion 11a and the third flange portion 17b of the second cover portion 11b extend over the entire circumferential direction. An annular flange is formed.

More specifically, as shown in FIG. 5, notches 21a are formed at both ends in the circumferential direction at the inner edge portion of the third flange portion 17a of the first cover portion 11a. In other words, the inner end surface of the third flange portion 17a of the first cover portion 11a is located on both sides of the peripheral surface portion 20a located in the central portion in the circumferential direction and the peripheral surface portion 20a in the circumferential direction, respectively, and the peripheral surface portion 20a. It is provided with a notch 21a closer to the inner surface side of the cover main body portion 19a. In other words, the third flange portion 17a of the first cover portion 11a has a smaller amount of protrusion from the inner surface of the cover main body portion 19a at the positions of both end portions in the circumferential direction than the central portion in the circumferential direction.

Further, notches 21b are formed at both ends in the circumferential direction at the inner edge portion of the third flange portion 17b of the second cover portion 11b. In other words, the inner end surface of the third flange portion 17b of the second cover portion 11b is located on both sides of the peripheral surface portion 20b located in the central portion in the circumferential direction and the peripheral surface portion 20b in the circumferential direction, respectively, and the peripheral surface portion 20b. It is provided with a notch 21b closer to the inner surface side of the cover main body portion 19b. In other words, the third flange portion 17b of the second cover portion 11b has a smaller amount of protrusion from the inner surface of the cover main body portion 19b at the positions of both end portions in the circumferential direction than the central portion in the circumferential direction.

As described above, in the mounting mode of the connection holder 1 (see FIG. 6), the third flange portion 17a of the first cover portion 11a and the third flange portion 17b of the second cover portion 11b cover the entire area in the circumferential direction. An extending annular flange is formed. However, by providing the notch 21a and the notch 21b described above, the notch 21a and the notch 21b are used to partition the annular flange in the circumferential direction in the mounting form of the connection holder 1 (see FIG. 6). The inner edge recess 22 to be formed can be formed (see FIG. 6A). The first protruding portion 111b (see FIG. 1 and the like) and the second protruding portion 111c (see FIG. 1 and the like) in the above-mentioned first medical device 100 can enter the inner edge recess 22. By doing so, it is possible to regulate the relative rotation of the first medical device 100 (see FIG. 1 and the like) with respect to the connection holder 1. The details will be described later.

As shown in FIG. 5B, the fourth flange portion 18a of the first cover portion 11a and the fourth flange portion 18b of the second cover portion 11b are located at substantially equal positions in the central axis direction B. Further, in the mounting form of the connection holder 1 (see FIG. 6), the end face on the radial inner side of the fourth flange portion 18a of the first cover portion 11a and the radial inner side of the fourth flange portion 18b of the second cover portion 11b. Is arranged so as to face each other in the radial direction.

The fourth flange portion 18a of the first cover portion 11a of the present embodiment extends in the circumferential direction over the entire area of the semicircle in the circumferential direction. Further, the fourth flange portion 18b of the second cover portion 11b of the present embodiment also extends in the circumferential direction over the entire area of the semicircle in the circumferential direction. Therefore, in the mounting form of the connection holder 1 (see FIG. 6), the fourth flange portion 18a of the first cover portion 11a and the fourth flange portion 18b of the second cover portion 11b extend over the entire circumferential direction. An annular flange is formed.

More specifically, as shown in FIG. 5B, notches 24a are formed at both ends in the circumferential direction at the inner edge portion of the fourth flange portion 18a of the first cover portion 11a. In other words, the inner end surface of the fourth flange portion 18a of the first cover portion 11a is located on both sides of the peripheral surface portion 23a located in the central portion in the circumferential direction and the peripheral surface portion 23a in the circumferential direction, respectively, and the peripheral surface portion 23a. It is provided with a notch portion 24a closer to the inner surface side of the cover main body portion 19a. In other words, the fourth flange portion 18a of the first cover portion 11a has a smaller amount of protrusion from the inner surface of the cover main body portion 19a at the positions of both end portions in the circumferential direction than the central portion in the circumferential direction. That is, it has the same configuration as the third flange portion 17a of the first cover portion 11a.

Further, notches 24b are formed at both ends in the circumferential direction at the inner edge portion of the fourth flange portion 18b of the second cover portion 11b. In other words, the inner end surface of the fourth flange portion 18b of the second cover portion 11b is located on both sides of the peripheral surface portion 23b located in the central portion in the circumferential direction and the peripheral surface portion 23b in the circumferential direction, respectively, and the peripheral surface portion 23b. It is provided with a notch portion 24b closer to the inner surface side of the cover main body portion 19b. In other words, the fourth flange portion 18b of the second cover portion 11b has a smaller amount of protrusion from the inner surface of the cover main body portion 19b at the positions of both end portions in the circumferential direction than the central portion in the circumferential direction. That is, it has the same configuration as the third flange portion 17b of the second cover portion 11b.

As described above, in the mounting mode of the connection holder 1 (see FIG. 6), the fourth flange portion 18a of the first cover portion 11a and the fourth flange portion 18b of the second cover portion 11b cover the entire area in the circumferential direction. An extending annular flange is formed. However, by providing the notch portion 24a and the notch portion 24b described above, the notch portion 24a and the notch portion 24b are partitioned on a part of the annular flange in the circumferential direction in the mounting form of the connection holder 1 (see FIG. 6). The inner edge recess 25 to be formed can be formed (see FIG. 6A). The first protruding portion 111b (see FIG. 1 and the like) and the second protruding portion 111c (see FIG. 1 and the like) in the above-mentioned first medical device 100 can enter the inner edge recess 25. By doing so, it is possible to regulate the relative rotation of the first medical device 100 (see FIG. 1 and the like) with respect to the connection holder 1.

Further, as shown in FIG. 5B and the like, the connection holder 1 is attached to the concave inner surface of the cover main body portion 19a of the first cover portion 11a in the mounting form (see FIG. 6) of the second medical device 200 (see FIG. 6). A convex portion 26a that enters the concave portion 224b (see FIG. 1 and the like) of (see FIG. 1 and the like) is formed. A plurality of convex portions 26a are formed at intervals in the circumferential direction. The concave portion 27a is partitioned between the convex portions 26a adjacent to each other in the circumferential direction. The convex portion 224a (see FIG. 1 and the like) of the second medical device 200 (see FIG. 1 and the like) is inserted into the concave portion 27a in the mounting form (see FIG. 6) of the connection holder 1.

In other words, on the concave inner surface of the cover main body 19a of the first cover portion 11a, there is a corresponding unevenness corresponding to the concave-convex portion formed by the convex portion 224a and the concave portion 224b of the second medical instrument 200 (see FIG. 1 and the like). The part is formed. Therefore, in the mounting form (see FIG. 6) of the connection holder 1, the uneven portion of the second medical device 200 (see FIG. 1 and the like) and the corresponding uneven portion of the cover main body portion 19a of the first cover portion 11a are engaged with each other. It fits. By doing so, it is possible to regulate the relative rotation of the second medical device 200 (see FIG. 1 and the like) with respect to the first cover portion 11a.

Further, in the concave inner surface of the cover main body portion 19b of the second cover portion 11b, the connection holder 1 is attached to the concave portion 224b (see FIG. 1 and the like) of the second medical device 200 (see FIG. 1 and the like) in the mounting form (see FIG. 6). Etc.), and a convex portion 26b is formed. A plurality of convex portions 26b are formed at intervals in the circumferential direction. The concave portion 27b is partitioned between the convex portions 26b adjacent to each other in the circumferential direction. The convex portion 224a (see FIG. 1 and the like) of the second medical device 200 (see FIG. 1 and the like) is inserted into the concave portion 27b in the mounting form (see FIG. 6) of the connection holder 1.

In other words, on the concave inner surface of the cover main body portion 19b of the second cover portion 11b, there is a corresponding unevenness corresponding to the concave-convex portion 224a and the concave portion 224b of the second medical instrument 200 (see FIG. 1 and the like). The part is formed. Therefore, in the mounting form (see FIG. 6) of the connection holder 1, the uneven portion of the second medical device 200 (see FIG. 1 and the like) and the corresponding uneven portion of the cover main body portion 19b of the second cover portion 11b are engaged with each other. It fits. By doing so, it is possible to regulate the relative rotation of the second medical device 200 (see FIG. 1 and the like) with respect to the second cover portion 11b.

That is, the connection holder 1 of the present embodiment has a corresponding uneven portion formed on the concave inner surface of the cover main body portion 19a of the first cover portion 11a, which is composed of the convex portion 26a and the concave portion 27a, and the second cover. A corresponding uneven portion formed on the concave inner surface of the cover main body portion 19b of the portion 11b, which is composed of the convex portion 26b and the concave portion 27b, is provided. Thereby, it is possible to restrict the rotation of the second medical device 200 (see FIG. 1 and the like) relative to the connection holder 1.

In the present embodiment, the concave inner surface of the cover main body 19a of the first cover 11a and the concave inner surface of the cover main body 19b of the second cover 11b are provided with corresponding uneven portions on both sides. The configuration is not limited to that, and a configuration in which a corresponding uneven portion is provided on the inner surface of either one may be used. However, in order to more reliably restrict the rotation of the second medical device 200 (see FIG. 1 and the like) relative to the connection holder 1, the cover of the first cover portion 11a is as in the present embodiment. It is preferable to provide corresponding uneven portions on both sides of the concave inner surface of the main body portion 19a and the concave inner surface of the cover main body portion 19b of the second cover portion 11b.

<First engaging portion 61 and second engaging portion 62>
The connection holder 1 is attached to two medical devices whose connection state can be released by relatively rotating, and can hold the connection state of the two medical devices. Specifically, the connection holder 1 of the present embodiment is attached to the first medical device 100 (see FIG. 1 and the like) and the second medical device 200 (see FIG. 1 and the like) as two medical devices. The connected state of the first medical device 100 and the second medical device 200 can be maintained. As described above, the first medical instrument 100 and the second medical instrument 200 are screw-joined by relatively rotating, and are connected by this. Conversely, the first medical instrument 100 and the second medical instrument 200 can be released from the screw joint by relatively rotating them. That is, the connected state can be released by rotating relatively.

Specifically, in the connection holder 1 of the present embodiment, the third flange portion 17a and the fourth flange portion 18a of the first cover portion 11a described above, and the third flange portion 17b and the fourth flange portion 17b of the second cover portion 11b are used. The flange portion 18b regulates the relative rotation of the first medical device 100.

When the connection holder 1 of the present embodiment is changed from the non-mounted form (see FIG. 5) to the mounted form (see FIG. 6), the first protruding portion 111b and the second protruding portion 111c of the first medical device 100 are changed. , In the circumferential direction, it is sandwiched between the third flange portion 17a of the first cover portion 11a and the third flange portion 17b of the second cover portion 11b. In other words, the first protrusion 111b and the second protrusion 111c of the first medical device 100 are arranged at the position of the inner edge recess 22 in the mounting form (see FIG. 6) of the connection holder 1. By doing so, even if the first medical device 100 tries to rotate around the central axis of the hub main body portion 111a, at least one of the first protruding portion 111b and the second protruding portion 111c is the first cover portion 11a. Since it abuts on at least one of the third flange portion 17a and the third flange portion 17b of the second cover portion 11b, it does not rotate around the central axis of the hub main body portion 111a. That is, the relative rotation of the first medical device 100 with respect to the connection holder 1 can be restricted.

Further, when the connection holder 1 of the present embodiment is changed from the non-mounted form (see FIG. 5) to the mounted form (see FIG. 6), the first protruding portion 111b and the second protruding portion of the first medical device 100 are used. The 111c is sandwiched between the fourth flange portion 18a of the first cover portion 11a and the fourth flange portion 18b of the second cover portion 11b in the circumferential direction. In other words, the first protrusion 111b and the second protrusion 111c of the first medical device 100 are arranged at the position of the inner edge recess 25 in the mounting form (see FIG. 6) of the connection holder 1. By doing so, even if the first medical device 100 tries to rotate around the central axis of the hub main body portion 111a, at least one of the first protruding portion 111b and the second protruding portion 111c is the first cover portion 11a. Since it abuts on at least one of the fourth flange portion 18a of the fourth flange portion 18a and the second cover portion 11b, it does not rotate around the central axis of the hub main body portion 111a, or the amount of rotation is limited. That is, it is possible to regulate the relative rotation of the first medical device 100 with respect to the connection holder 1 around the central axis O.

As described above, the connection holder 1 of the present embodiment regulates the relative rotation of the first medical device 100.

Further, in the connection holder 1 of the present embodiment, the corresponding uneven portion formed by the convex portion 26a and the concave portion 27a of the cover main body portion 19a of the first cover portion 11a described above, and the second cover portion 11b described above. The corresponding uneven portion formed by the convex portion 26b and the concave portion 27b of the cover main body portion 19b regulates the relative rotation of the second medical device 200.

Specifically, in the mounting form of the connection holder 1 (see FIG. 6), the uneven portion composed of the convex portion 224a and the concave portion 224b of the second medical device 200 fits into the above-mentioned corresponding uneven portion of the connection holder 1. It fits. That is, in the mounting form of the connection holder 1 (see FIG. 6), the convex portion 224a of the second medical device 200 fits into the above-mentioned recesses 27a and 27b of the connection holder 1. Further, in the mounting form of the connection holder 1 (see FIG. 6), the above-mentioned convex portion 26a and the convex portion 26b of the connection holder 1 are fitted into the concave portion 224b of the second medical device 200. As a result, even if the second medical device 200 tries to rotate around the central axis of the male lure portion 223 (see FIG. 2 and the like) with respect to the connection holder 1, the convex portion 26a and the convex portion 26b of the connection holder 1 are formed. Since the convex portion 224a of the second medical instrument 200 abuts in the circumferential direction, the male lure portion 223 (see FIG. 2 and the like) does not rotate around the central axis, or the amount of rotation is limited. That is, it is possible to regulate the relative rotation of the second medical device 200 with respect to the connection holder 1 around the central axis O.

As described above, in the connection holder 1 of the present embodiment, the third flange portion 17a and the third flange portion 17b as the first engaging portion 61 that engage with the first medical device 100 as one medical device. , A fourth flange portion 18a and a fourth flange portion 18b are provided. Further, the connection holder 1 of the present embodiment includes a convex portion 26a and a convex portion 26b as the second engaging portion 62 that engage with the second medical instrument 200 as the other medical instrument.

The third flange portion 17a, the third flange portion 17b, the fourth flange portion 18a, and the fourth flange portion 18b as the first engaging portion 61 are engaged by abutting with the first medical instrument 100, and the first medical treatment is performed. The relative rotation of the device 100 with respect to the second medical device 200 in the release direction side is restricted.

Hereinafter, for convenience of explanation, the direction in which the first medical device 100 rotates relative to the second medical device 200 when the connection between the first medical device 100 and the second medical device 200 in the connected state is disconnected. Is described as the first rotation direction A1. That is, the above-mentioned "relative rotation toward the release direction side" means the relative rotation of the first medical device 100 with respect to the second medical device 200 in the first rotation direction A1. Further, for convenience of explanation, the side opposite to the above-mentioned "release direction side" is referred to as a second rotation direction A2. The second rotation direction A2 means that the second medical device 200 rotates relative to the first medical device 100 when the connection between the first medical device 100 and the second medical device 200 in the connected state is released. It means the direction of movement.

The convex portion 26a and the convex portion 26b as the second engaging portion 62 are engaged with each other by abutting with the second medical instrument 200, and the second medical instrument 200 is engaged in the second rotation direction A2 with respect to the first medical instrument 100. Regulate relative rotation to.

Specifically, in the present embodiment, the first rotation in the direction of loosening the screw joint with respect to the first medical instrument 100 among the first medical instrument 100 and the second medical instrument 200 which are screw-joined and connected. Even if the rotational force acts toward the direction A1, the first medical device 100 is in the first rotation direction relative to the connection holder 1 due to the third flange portion 17a or the like as the first engaging portion 61. Rotation to A1 is restricted.

Further, in the present embodiment, the second rotation direction A2, which is the direction in which the screw joint is loosened with respect to the second medical instrument 200 among the first medical instrument 100 and the second medical instrument 200 which are screw-joined and connected. The second medical device 200 rotates in the second rotation direction A2 relative to the connection holder 1 due to the convex portion 26a or the like as the second engaging portion 62 even when the rotational force acts toward the connection holder 1. Is regulated.

That is, since the connection holder 1 includes the above-mentioned first engagement portion 61 and the second engagement portion 62, the first medical device 100 and the second medical device 200 are screw-joined to the connection holder 1, respectively. It is possible to restrict the relative rotation of the device in the direction in which it loosens. Therefore, it is possible to restrict the first medical instrument 100 and the second medical instrument 200 in the connected state from relatively rotating in the direction in which the screw joint is loosened.

In general, polypropylene is softer and more easily deformed than polycarbonate. Therefore, as an example, when the catheter hub 111 (see FIG. 1 etc.) is made of polypropylene and the holder 216 (see FIG. 1 etc.) of the second medical instrument 200 (see FIG. 1 etc.) is made of polycarbonate, the catheter The screw connection between the male threaded portion 112 of the hub 111 (see FIG. 1 etc.) and the female threaded portion 221 (see FIG. 2 etc.) of the holder 216 (see FIG. 1 etc.) of the medical device 200 (see FIG. 1 etc.) is performed by the catheter. The male threaded portion 112 of the hub 111 may loosen due to deformation over time. By using the connection holder 1, even in the case of screw joining of members having different hardnesses, it is possible to more reliably regulate the relative rotation of the screw joint in the loosening direction.

Further, the third flange portions 17a and 17b and the fourth flange portions 18a and 18b as the first engaging portion 61 of the present embodiment have the first protruding portion 111b and the second protruding portion as a part of the first medical device 100. It is arranged adjacent to the first rotation direction A1 in the rotation circumferential direction A of the first medical device 100 with respect to the portion 111c, and hits the first protrusion 111b and the second protrusion 111c of the first medical device 100. A first contact wall portion 28 that restricts the rotation of the first medical device 100 in the first rotation direction A1 by contacting the first medical device 100 is provided. More specifically, as shown in FIG. 5 (b), the first contact wall portion 28 of the present embodiment is the first rotation of the end faces that partition the inner edge recess 22 (see FIG. 6 (a)). It is composed of a portion located on the direction A1 side and a portion of the end face for partitioning the inner edge recess 25 located on the first rotation direction A1 side.

Further, the convex portions 26a and 26b as the second engaging portion 62 of the present embodiment have the second rotational direction A2 in the rotational circumferential direction A with respect to the convex portion 224a as a part of the second medical instrument 200. A second contact wall portion 29 is provided adjacent to the second medical device 200, which regulates the rotation of the second medical device 200 in the second rotation direction A2 by contacting the convex portion 224a of the second medical device 200. More specifically, the second contact wall portion 29 of the present embodiment is composed of the side surfaces of the convex portions 26a and 26b on the second rotation direction A2 side of the rotation circumferential direction A.

As described above, the first engaging portion 61 of the present embodiment is composed of the third flange portions 17a and 17b and the fourth flange portions 18a and 18b, but the first medical device 100 with respect to the connection holder 1 Any configuration can be used as long as the relative rotation can be regulated, and the configuration is not limited to the configuration shown in the present embodiment. For example, the third flange portions 17a and 17b of the present embodiment form an annular flange extending over the entire circumferential direction in the mounting embodiment of the connection holder 1 (see FIG. 6), but one in the circumferential direction. It may be configured to form a rib or the like extending only in the portion. That is, in the mounting mode of the connection holder 1 (see FIG. 6), the peripheral cover portion 11 protrudes toward the hollow portion inside (as an example, in the present embodiment, the third flange portions 17a, 17b, The fourth flange portions 18a and 18b and the convex portions 26a and 26b) are provided, and the first engaging portion 61 is provided with the protruding portion (for example, in the present embodiment, the third flange portions 17a and 17b and the fourth flange portion 18a). , 18b).

Further, although the second engaging portion 62 of the present embodiment is composed of the convex portions 26a and 26b as described above, the relative rotation of the second medical device 200 with respect to the connection holder 1 can be restricted. Any configuration may be used, and the configuration is not limited to the configuration shown in the present embodiment. For example, in the mounting mode of the connection holder 1 (see FIG. 6), a plurality of convex portions 26a and 26b of the present embodiment are arranged in total in the circumferential direction, but only one may be configured. That is, in the mounting mode of the connection holder 1 (see FIG. 6), the peripheral cover portion 11 protrudes toward the hollow portion inside (as an example, in the present embodiment, the third flange portions 17a, 17b, The fourth flange portions 18a and 18b and the convex portions 26a and 26b) are provided, and the second engaging portion 62 can be configured by the protruding portions (convex portions 26a and 26b in the present embodiment as an example). ..

In this way, by forming the first engaging portion 61 and the second engaging portion 62 with the protruding portions provided on the peripheral cover portion 11, the circumference of the central axis O of the first medical instrument 100 and the second medical instrument 200 The relative rotation of the medical device can be restricted, and the circumference of the first medical device 100 and the second medical device 200 as two medical devices can be covered by the entire peripheral cover portion 11. Therefore, it is possible to prevent the patient or the like from touching the first medical device 100 and the second medical device 200, and further reduce the risk that the connection between the first medical device 100 and the second medical device 200 will be disconnected by an erroneous operation. can do.

Further, the first engaging portion 61 and the second engaging portion 62 may be configured by a recess provided in the connection holder 1. In this case, the first medical instrument 100 and the second medical instrument 200 may be provided with convex portions that fit into the concave portions as the first engaging portion 61 and the second engaging portion 62. As described above, the first engaging portion 61 is not particularly limited as long as it has a configuration that interferes with a part of the first medical device 100 in the circumferential direction around the central axis O. Further, the second engaging portion 62 is not particularly limited as long as it has a configuration that interferes with a part of the second medical device 200 in the circumferential direction around the central axis O.

<Third engaging portion 63>
By engaging the first flange portions 15a and 15b of the present embodiment with the second medical instrument 200, the second medical instrument 200 moves relatively to the upstream side of the flow path with respect to the connection holder 1. regulate. That is, when the connection holder 1 is attached to the first medical instrument 100 and the second medical instrument 200 in the connected state, the first flange portions 15a and 15b are a part of the second medical instrument 200 and the central axis O. It is arranged at a position where it interferes in the central axis direction B along the line. The first flange portions 15a and 15b of the present embodiment refer to a part of the holder 216 as a part of the second medical instrument 200 (in this embodiment, the wall surface facing the upstream side of the flow path of the connecting portion 224). It is arranged on the upstream side of the flow path in the central axis direction B. Therefore, a part of the holder 216 comes into contact with the first flange portions 15a and 15b from the downstream side of the flow path, thereby restricting the relative movement of the second medical instrument 200 to the upstream side of the flow path.

Further, by engaging the second flange portions 16a and 16b of the present embodiment with the second medical instrument 200, the second medical instrument 200 moves relatively to the downstream side of the flow path with respect to the connection holder 1. Regulate that. That is, when the connection holder 1 is attached to the first medical instrument 100 and the second medical instrument 200 in the connected state, the second flange portions 16a and 16b are a part of the second medical instrument 200 and the central axis direction. It is arranged at a position where it interferes with B. The second flange portions 16a and 16b of the present embodiment are a part of the holder 216 as a part of the second medical instrument 200 (in this embodiment, a stepped surface connecting the outer wall of the connecting portion 224 and the outer wall of the outer cylinder portion 222). ), It is arranged on the downstream side of the flow path in the central axis direction B. Therefore, a part of the holder 216 comes into contact with the second flange portions 16a and 16b from the upstream side of the flow path, thereby restricting the relative movement of the second medical instrument 200 to the downstream side of the flow path.

That is, the connection holder 1 of the present embodiment engages with the second medical instrument 200, and is in the direction of the central axis parallel to the central axis O as the rotation central axis of the first medical instrument 100 and the second medical instrument 200. A third engaging portion 63 is provided that regulates relative movement to B. As described above, the third engaging portion 63 of the present embodiment is composed of the first flange portions 15a and 15b and the second flange portions 16a and 16b.

The third engaging portion 63 of the present embodiment is composed of the first flange portions 15a and 15b and the second flange portions 16a and 16b, but the first medical instrument 100 and the second medical instrument 200 with respect to the connection holder 1 It is not limited to the configuration of this embodiment as long as it is configured to regulate the relative movement of the above in the central axis direction B. Therefore, the third engaging portion 63 is not limited to the flange portion extending in the circumferential direction, and may be, for example, various protruding portions protruding from the inner surfaces of the cover main body portions 19a and 19b. In addition to this, the third engaging portion 63 may be configured by a concave portion into which a convex portion provided on the second medical device 200 fits.

The connection holder 1 can be formed of, for example, the same material as the holder 216 (see FIG. 1 and the like) described above.

[Cover member 2]
As shown in FIG. 8, the cover member 2 can be attached to the connection holder 1, and while the cover member 2 is attached to the connection holder 1, the connection holder 1 holds a connection in two medical treatments. It is possible to wrap around another medical device that is connected to one of the devices. That is, according to the cover member 2, it is possible to cover the periphery of another medical device further connected to one of the two medical devices whose connection is held by the connection holder 1. By doing so, it is possible to make it difficult for both of the two connection points of the three medical devices connected in series to be operated from the outside. Therefore, it is possible to prevent the unintentional disconnection operation from being performed at both of the two connection points.

As shown in FIG. 7, the cover member 2 is composed of a cylindrical tubular member that partitions the hollow portion 32. As shown in FIG. 8, the cover member 2 is on the flow path of the connection holder 1 in a state where the connection holder 1 is mounted around the first medical device 100 and the second medical device 200 in the connected state. Attached to the end of the flow side. Specifically, as shown in FIG. 7, an annular convex portion 30 extending over the entire circumferential direction is formed on the inner surface of the cover member 2 of the present embodiment. Further, as shown in FIG. 6, protrusions are formed on the outer surface of the cover main body 19a of the first cover portion 11a and the outer surface of the cover main body 19b of the second cover portion 11b in the connection holder 1 of the present embodiment. The portion 31 is formed. Therefore, in the present embodiment, the cover member 2 is externally fitted to the connection holder 1 until the above-mentioned annular protrusion 30 of the cover member 2 gets over the above-mentioned protrusion 31 of the connection holder 1. As a result, the cover member 2 can be attached to the connection holder 1.

By attaching the cover member 2 of the present embodiment to the connection holder 1, the cover member 2 can cover the periphery of the third medical device 300 connected to the second medical device 200. However, the cover member 2 does not regulate the relative rotation around the central axis O of the third medical device 300. That is, the cover member 2 can make it difficult to touch the third medical device 300 by covering the periphery of the third medical device 300, and an erroneous operation such as removing the third medical device 300 from the second medical device 200 occurs. Can be suppressed.

Further, the cover member 2 of the present embodiment is attached to the connection holder 1 in a rotatable state. With such a configuration, even if an external force that rotates the cover member 2 in the circumferential direction acts from the outside, the cover member 2 can rotate relative to the connection holder 1, so that the connection holder It is possible to prevent the first medical instrument 100 and the second medical instrument 200 from being twisted by the rotation of 1. Further, as described above, since the cover member 2 and the third medical instrument 300 do not interfere with each other in the circumferential direction and can rotate relative to each other in the circumferential direction, the cover member 2 is relative to the connection holder 1. It is possible to suppress the occurrence of twisting of the third medical device 300 even if the third medical device 300 is rotated.

Further, the cover member 2 is attached to the connection holder 1 by forming the above-mentioned annular convex portion 30 and the protrusion 31 so that the cover member 2 can rotate relative to the connection holder 1. It is possible to eliminate the need for positioning in the circumferential direction when performing. Therefore, it is possible to improve the operability when the cover member 2 is attached to the connection holder 1.

FIG. 9 is a diagram showing a cover member 52 as a modification of the cover member 2 shown in FIG. 7. The cover member 52 shown in FIG. 9 is different from the cover member 2 shown in FIG. 7 in that a gap 53 extending along the entire axial direction is formed in a part of the circumferential direction. Other configurations are the same. By providing the gap 53, a part of the third medical device 300 can be moved into the hollow portion 54 of the cover member 52 through the gap 53. Therefore, for example, when the third medical device 300 is composed of a tubular member, the tubular member as the third medical device 300 is tubular as the third medical device 300 in the vicinity of the connection point with the second medical device 200. The member can be moved to the hollow portion 54 through the gap 53. That is, it is not necessary to insert the tubular member as the third medical device 300 from the end thereof into the hollow portion 54 of the cover member 52. Therefore, the cover member 52 can be arranged around the third medical device 300 without considering the connection state of the third medical device 300 with other medical devices, so that the operability is improved.

The material of the cover member 2 can be formed from, for example, the same material as the connection holder 1 described above.

Next, as shown in FIGS. 3 and 4, the present implementation is performed on the connection body 500 in which the first medical device 100, the second medical device 200, and the third medical device 300 are linearly connected in series. The outline of the operation of mounting the connection holder 1 and the cover member 2 of the form will be described. 10 and 11 are views showing a state before the connection holder 1 is attached to the connection body 500 and a state before the cover member 2 is attached to the connection holder 1. 12 and 13 are views showing a state in which the connection holder 1 is attached to the connection body 500 and a state before the cover member 2 is attached to the connection body 500. 14 and 15 are views showing a state in which the connection holder 1 is attached to the connection body 500 and a state in which the cover member 2 is attached to the connection holder 1.

As shown in FIGS. 10 and 11, the connection holder 1 includes a connector portion 101 of the first medical instrument 100 (in this embodiment, a luer lock type female connector portion conforming to ISO80369-7) and a second medical instrument. It is arranged at a connection point with the connector portion 202 of 200 (in this embodiment, a luer lock type male connector portion conforming to ISO80369-7).

Specifically, in the examples shown in FIGS. 10 and 11, in the first medical instrument 100 and the second medical instrument 200 that are screwed together, the catheter hub 111 as the connector portion 101 of the first medical instrument 100 and the second medical instrument 200 are second. The connector 1 is arranged so as to receive the holder 216 of the medical device 200 on the inner surface of the second cover portion 11b.

In the state shown in FIGS. 10 and 11, the first protruding portion 111b and the second protruding portion 111c of the first medical device 100 have the third flange portion 17b of the second cover portion 11b in the circumferential direction around the central axis O. And is arranged at a position adjacent to the fourth flange portion 18b. In other words, in the state shown in FIGS. 10 and 11, the first protruding portion 111b and the second protruding portion 111c of the first medical device 100 have notches 21b and 24b in the circumferential direction around the central axis O (FIG. 10). It is arranged at the position of 5).

Further, in the state shown in FIGS. 10 and 11, the convex portion 224a of the holder 216 of the second medical instrument 200 is housed in the concave portion 27b (see FIG. 5B and the like) of the second cover portion 11b. In other words, in the state shown in FIGS. 10 and 11, the convex portion 224a of the holder 216 of the second medical device 200 has the convex portion 26b of the second cover portion 11b in the circumferential direction around the central axis O (FIG. 5). It is located adjacent to (b) etc.). Therefore, the convex portion 224a (see FIG. 10) of the second medical device 200 interferes with the convex portion 26b (see FIG. 5 (b) and the like) of the second cover portion 11b in the circumferential direction. As a result, the relative rotation of the second medical device 200 with respect to the connection holder 1 is restricted.

Further, in the state shown in FIGS. 10 and 11, a part of the holder 216 of the second medical instrument 200 is sandwiched in the central axis direction B by the first flange portion 15b and the second flange portion 16b of the second cover portion 11b. It has been. As a result, the relative movement of the second medical device 200 with respect to the connection holder 1 in the central axis direction B can be restricted.

From the state shown in FIGS. 10 and 11, the first cover portion 11a of the connection holder 1 is rotated, and the first locking portion 13 of the first cover portion 11a and the second locking portion of the second cover portion 11b are rotated. By engaging with 14, the connection holder 1 is changed to the mounting form as shown in FIGS. 12 and 13.

By changing from the state shown in FIGS. 10 and 11 to the state shown in FIGS. 12 and 13, in the first medical device 100 and the second medical device 200 screw-joined, the connector portion 101 of the first medical device 100 is used. The catheter hub 111 and the holder 216 of the second medical instrument 200 can be received not only on the inner surface of the second cover portion 11b but also on the inner surface of the first cover portion 11a (see FIG. 11 and the like). .. In other words, the first medical device 100 and the second medical device 200 have the same positional relationship as the positional relationship between the first medical device 100 and the second medical device 200 and the second cover portion 11b shown in FIGS. 10 and 11. It can also be realized between the first cover portion 11a (see FIG. 11 and the like).

More specifically, in the state shown in FIGS. 12 and 13, the first protruding portion 111b and the second protruding portion 111c of the first medical device 100 are the second cover portion 11b in the circumferential direction around the central axis O. At positions opposite to the third flange portion 17b and the fourth flange portion 18b, the third flange portion 17a (see FIG. 11 and the like) and the fourth flange portion 18a (see FIG. 11 and the like) of the first cover portion 11a (see FIG. 11 and the like). (Refer to 11 etc.).

In other words, in the state shown in FIGS. 12 and 13, the first protruding portion 111b and the second protruding portion 111c of the first medical device 100 have the first cover portion 11a (FIG. 12) in the circumferential direction around the central axis O. The position sandwiched between the third flange portion 17a (see FIG. 11 and the like) of the second cover portion 11b) and the third flange portion 17b of the second cover portion 11b, more specifically, the inner edge recess 22 (FIG. 6 (a)). ) Refer to).

Similarly, in the state shown in FIGS. 12 and 13, the first protruding portion 111b and the second protruding portion 111c of the first medical device 100 have the first cover portion 11a (FIG. 11) in the circumferential direction around the central axis O. Etc.) and the position sandwiched between the fourth flange portion 18a (see FIG. 11 and the like) and the fourth flange portion 18b of the second cover portion 11b, more specifically, the inner edge recess 25 (FIG. 6 (a)). , See FIG. 8).

Therefore, in the state shown in FIGS. 12 and 13, the first protruding portion 111b and the second protruding portion 111c of the first medical device 100 are the third flange portion 17a (see FIG. 11 and the like) of the first cover portion 11a (see FIG. 11 and the like). 11 etc.), the 4th flange part 18a of the 1st cover part 11a (see FIG. 11 etc.), the 3rd flange part 17b of the 2nd cover part 11b, and the 4th flange part 18b of the 2nd cover part 11b. It interferes in the circumferential direction. As a result, the relative rotation of the first medical device 100 with respect to the connection holder 1 is restricted.

Further, in the state shown in FIGS. 12 and 13, the convex portion 224a (see FIG. 10) of the holder 216 of the second medical instrument 200 is housed in the concave portion 27a (see FIG. 11 and the like) of the first cover portion 11a. In other words, in the state shown in FIGS. 12 and 13, the convex portion 224a (see FIG. 10) of the holder 216 of the second medical instrument 200 is the convex portion of the first cover portion 11a in the circumferential direction around the central axis O. It is arranged at a position adjacent to the portion 26a (see FIG. 11 and the like). Therefore, the convex portion 224a (see FIG. 10) of the second medical device 200 interferes with the convex portion 26a (see FIG. 11 and the like) of the first cover portion 11a in the circumferential direction. As a result, the relative rotation of the second medical device 200 with respect to the connection holder 1 is restricted.

Further, in the state shown in FIGS. 12 and 13, a part of the holder 216 of the second medical instrument 200 has a first flange portion 15a (see FIG. 11 and the like) and a first flange portion of the first cover portion 11a (see FIG. 11 and the like). It is sandwiched by the two flange portions 16a (see FIG. 11 and the like) in the central axis direction B. As a result, the relative movement of the second medical device 200 with respect to the connection holder 1 in the central axis direction B can be restricted.

As described above, if the connection holder 1 of the present embodiment is used, the first engaging portion 61 (in this embodiment, the third flange portions 17a and 17b and the fourth flange portions 18a and 18b) (see FIG. 11 and the like). And the second engaging portion 62 (convex portions 26a and 26b in this embodiment) (see FIGS. 5 (b), 11 and the like) allow the first medical device 100 and the second medical device 200 to have a central axis O, respectively. It is possible to suppress the relative rotation of the connection holder 1 in the direction in which the connection is released. As a result, it is possible to prevent the first medical device 100 and the second medical device 200 from relatively rotating in the direction in which the connection is disconnected. As a result, it is possible to prevent the first medical device 100 and the second medical device 200 from being unintentionally disconnected.

Further, if the connection holder 1 of the present embodiment is used, the second medical instrument 200 and the second medical instrument 200 and the third engaging portion 63 (in the present embodiment, the first flange portions 15a and 15b and the second flange portions 16a and 16b) The first medical device 100 connected to the second medical device 200 can be prevented from moving relative to the connection holder 1 in the central axis direction B. As a result, the connection holder 1 moves relative to the first medical device 100 and the second medical device 200 in the central axis direction B, and is positioned around the first medical device 100 and the second medical device 200. It is possible to suppress the movement from.

Next, from the state shown in FIGS. 12 and 13, the cover member 2 is moved to the downstream side of the flow path in the central axis direction B. More specifically, the cover member 2 is moved in the central axis direction B until the annular convex portion 30 formed on the inner surface of the cover member 2 shown in FIG. 13 gets over the protrusion 31 of the connection holder 1 shown in FIG. Is moved to the downstream side of the flow path, and the attachment of the cover member 2 to the connection holder 1 is completed (see FIGS. 14 and 15).

As shown in FIG. 14, by attaching the cover member 2 to the connection holder 1, the connector portion 301 of the third medical device 300 (in this embodiment, a luer lock type male connector portion conforming to ISO80369-7). The surroundings are covered. Therefore, it is possible to suppress disconnection from the second medical device 200 due to an erroneous operation of the third medical device 300. Further, the cover member 2 of the present embodiment is rotatably attached to the connection holder 1. Therefore, even if the cover member 2 rotates, its torque is difficult to be transmitted to the third medical instrument 300, so that the third medical instrument 300 unintentionally rotates relative to the second medical instrument 200. This can be further suppressed.

As described above, if the connection holder set 10 of the present embodiment is used, the connection holder 1 can only hold the connection between the two medical devices (the first medical device 100 and the second medical device 200 in the present embodiment). Not between one medical device of two medical devices and another medical device connected to the one medical device (third medical device 300 connected to the second medical device 200 in this embodiment). By covering the connected state with the cover member 2, it is possible to prevent the connection state from being released by an unintended external force or the like.

The connection holder and the connection holder set according to the present disclosure are not limited to the specific configurations shown in the above-described embodiments and modifications, and may be modified or modified in various ways within the scope of the claims. It is possible. For example, in the above-described embodiment, the connection holder 1 for holding the connection between the tubular member as the first medical device 100 and the medical connector as the second medical device 200 will be exemplified. However, as long as the two medical devices can be released from the connected state by relatively rotating, the connection holder may be used to hold the connection between the two medical devices different from the above-described embodiment. In such a case, the configuration of the connection holder can be appropriately designed according to the shape of the medical device and the like as long as it does not deviate from the description of the claims.

The present disclosure relates to a connection holder and a connection holder set.

1: Connection holder 2: Cover member 10: Connection holder set 11: Peripheral cover part 11a: First cover part 11b: Second cover part 11c: Flange part 12: Locking receiving hole 13: First locking part 14 : Second locking portion 15a: First flange portion 15b of the first cover portion: First flange portion 16a of the second cover portion: Second flange portion 16b of the first cover portion: Second flange portion of the second cover portion 17a: 3rd flange portion 17b of the 1st cover portion: 3rd flange portion 18a of the 2nd cover portion: 4th flange portion 18b of the 1st cover portion: 4th flange portion 19a of the 2nd cover portion: 1st cover portion Cover main body 19b: Cover main body 20a of the second cover part: Peripheral surface portion 20b of the third flange portion of the first cover portion: Peripheral surface portion 21a of the third flange portion of the second cover portion: No. 1 of the first cover portion 3 Notch 21b of the flange portion: Notch 22 of the third flange portion of the second cover portion: Inner edge recess 23a: Peripheral surface portion 23b of the fourth flange portion of the first cover portion: 4th flange portion of the second cover portion Peripheral surface portion 24a: Notch portion 24b of the fourth flange portion of the first cover portion: Notch portion 25 of the fourth flange portion of the second cover portion: Inner edge concave portion 26a: Convex portion 26b of the first cover portion: Of the second cover portion Convex portion 27a: Recessed portion 27b of the first cover portion: Recessed portion 28 of the second cover portion: First contact wall portion 29: Second contact wall portion 30: Circular convex portion 31: Projection portion 32: Hollow portion 52: Cover Member 53: Gap 54: Hollow portion 61: First engaging portion 62: Second engaging portion 63: Third engaging portion 100: First medical device 100a: Hollow portion 101 of the first medical device: First medical device Connector part 110: Flange body 111: Flange hub 111a: Hub body part 111b: First protruding part 111c: Second protruding part 112: Male threaded part 200: Second medical device 200a: Hollow part 201 of the second medical device 2 Connector part of medical equipment 202: Connector part of second medical equipment 210: Housing 211: Elastic valve body 212: Slit 213: Insertion part 214: Flow path 215: Cap 216: Holder 217: Top surface cap 218: Bottom cap 219 : Flange 220: Male threaded portion 221: Female threaded portion 222: Outer cylinder portion 223: Male lure portion 224: Connecting portion 224a: Convex portion 224b: Recessed portion 300: Third medical instrument 300a: Hollow portion 301 of the third medical instrument: Third Medical instrument connector part 310: Tube body 311: Medical connector 311a: Tube connection part 311b: Osluer part 311c: Outer cylinder part 312: Female thread part 313: Convex rib 314: Concave part 500: Connection body 5 00a: Flow path A: Rotation circumference direction A1: First rotation direction A2: Second rotation direction B: Central axis direction O: Central axis

Claims (7)

A connection holder attached to the first medical device and the second medical device , which can be released from the connection state by relatively rotating, and
A cover member attached to the connection holder is provided so as to cover the periphery of the third medical device connected to the second medical device.
The connection holder is
A first engaging portion that engages with the first medical device and regulates the relative rotation of the first medical device toward the release direction side with respect to the second medical device.
A second engaging portion that engages with the second medical device and restricts the relative rotation of the second medical device to the side opposite to the release direction side with respect to the first medical device. Connection holder set . The first engaging portion is arranged adjacent to the part of the first medical device in the release direction side in the rotation circumferential direction, and abuts on the part of the first medical device. The connection holder set according to claim 1, further comprising a contact wall portion that restricts the rotation of the first medical device in the rotation circumferential direction toward the release direction side. When the contact wall portion is used as the first contact wall portion,
The second engaging portion is arranged adjacent to a part of the second medical device on the side opposite to the release direction side in the rotation circumferential direction, and the part of the second medical device. The connection holder according to claim 2, further comprising a second contact wall portion that regulates the rotation of the second medical device in the direction opposite to the release direction side in the rotation circumferential direction by contacting the second medical device. Set . The connection holder engages with at least one of the first medical device and the second medical device, and has a central axis parallel to the rotation center axis of the first medical device and the second medical device. The connection holder set according to any one of claims 1 to 3, further comprising a third engaging portion that restricts movement in a direction. The connection holder comprises a peripheral cover portion that extends across the first medical device and the second medical device and covers the periphery of the first medical device and the second medical device.
The peripheral cover portion includes a plurality of protrusions protruding toward the hollow portion inside, and the peripheral cover portion includes a plurality of protrusions.
The connection holder set according to any one of claims 1 to 4, wherein the first engaging portion and the second engaging portion are composed of the protruding portion. The connection holder set according to any one of claims 1 to 5 , wherein the cover member is rotatably attached to the connection holder. The connection holder set according to any one of claims 1 to 6 , wherein a gap extending along the entire axial direction is formed in a part of the cover member in the circumferential direction.

Images