WO2016147558A1

WO2016147558A1 - Sealing type connector

Info

Publication number: WO2016147558A1
Application number: PCT/JP2016/000883
Authority: WO
Inventors: 貴則富永
Original assignee: テルモ株式会社
Priority date: 2015-03-13
Filing date: 2016-02-18
Publication date: 2016-09-22

Abstract

Provided is a sealing type connector to which another medical device can be connected, said another medical device being provided with a male connector section having a closed front end and a side wall opening which is formed in a side wall thereof. The sealing type connector is provided with: a housing which has defined therein a flow passage and an insertion opening which allows the male connector section to be inserted therein from the outside; and a valve body which is located at the insertion opening and which, when the male connector section is inserted into the insertion opening, is pressed-in in the insertion direction while being deformed. One end opening which forms one end of the flow passage is defined in a wall surface in which the insertion opening is defined. When the male connector section is inserted into the insertion opening, the valve body which is in a position in which the valve body closes the one end opening is pressed-in in the insertion direction, and as a result the side wall opening and the one end opening are connected.

Description

Closed connector

The present invention relates to a medical closed connector.

When performing infusions to patients, it is necessary to form a route (infusion line) for transporting medicinal solutions. An infusion line is generally formed by connecting an infusion tube, various medical instruments, and the like. In addition, when injecting a drug solution to be administered to a patient into a drug solution bag, it is necessary to connect the drug solution bag to a syringe or the like. Thus, a male connector and a female connector are used to detachably connect different members.

By the way, in the chemical solution, for example, there is a chemical solution containing a drug designated as a powerful drug such as an anticancer drug, and a medical worker can remove such a dangerous chemical solution when attaching / detaching a male connector or a female connector. It is necessary to pay sufficient attention so that the liquid does not adhere to the finger or the like.

Patent Document 1 discloses a distal valve that is disposed at a distal end of a housing and includes an internal valve seat disposed in a tubular male portion that engages a female connector (female connector), and a proximal end of the housing. A proximal valve disposed and a rigid drive movably disposed within the housing to move toward the proximal end of the housing to open both the distal and proximal valves A male connector (male connector) for connecting to a female connector, and when removed from a state connected to the female connector, the liquid remaining inside is confined so that it does not leak to the outside. A self-sealing male connector (also called a closed male connector or a male closed connector) is disclosed.

Japanese translation of PCT publication No. 2008-522736

However, in the closed male connector as the closed connector described in Patent Document 1, the distal end surface of the tubular male portion facing the flow path in a state of being connected to the female connector and the distal end of the valve stem of the drive unit Even when the closed male connector is removed from the female connector on the front end surface of the attached valve tip sealing body, there is a problem that a medical liquid droplet may remain and the medical staff may touch it There is.

In view of the above problems, an object of the present invention is to provide a closed connector in which liquid droplets of a chemical liquid hardly remain on an outer wall when removed from a state connected to another medical device.

The closed type connector according to the first aspect of the present invention is a closed type connector to which another medical device including a male connector portion whose tip is closed and a side wall opening is formed on the side wall can be connected. A housing that defines an insertion opening and a flow path into which the male connector portion is inserted, and a valve body that is positioned in the insertion opening and is pushed in while being elastically deformed in the insertion direction when the male connector portion is inserted, The wall surface defining the insertion opening defines one end opening serving as one end of the flow path, and the valve body closing the one end opening is inserted when the male connector portion is inserted into the insertion opening. By being pushed in the insertion direction, the side wall opening and the one end opening communicate with each other.

As one embodiment of the present invention, the housing includes a retaining protrusion that restricts the valve body from moving in a direction opposite to the insertion direction, and the retaining protrusion includes the male connector portion. When inserted into the insertion opening and the valve body is pushed in the insertion direction, it is preferable to engage with a locking projection provided in the other medical device.

As one embodiment of the present invention, it is preferable that a flat portion composed of one plane along the insertion direction is formed on the outer wall of the housing located in a direction orthogonal to the insertion direction.

As one embodiment of the present invention, the housing includes a male connector portion that can be inserted into an insertion opening defined by the other medical device and that constitutes the wall surface that defines the insertion opening of the housing. The one end opening is preferably partitioned on an outer surface of the male connector portion of the housing.

As one embodiment of the present invention, it is preferable that the tip of the male connector portion of the housing is closed.

As one embodiment of the present invention, a valve that is pushed into the insertion opening defined by the other medical device while being elastically deformed in a direction opposite to the insertion direction when the male connector portion of the housing is inserted. A body is located, the male connector portion of the housing, the insertion opening and the valve body as the first male connector portion, the first insertion opening and the first valve body, the male connector portion of the other medical device, the insertion opening and When the valve body is the second male connector portion, the second insertion opening, and the second valve body, when the second male connector portion is inserted into the first insertion opening, the first male connector portion is When inserted into the second insertion opening, the first valve body is pushed in by the second male connector portion, and the second valve body is pushed in by the first male connector portion. A serial sidewall opening, said end opening of said first male connector portion is preferably communicated.

In the closed connector according to one embodiment of the present invention, it is preferable that the other medical device is a closed connector and has the same shape as the other medical device.

A closed type connector according to a second aspect of the present invention is a closed type connector connectable to another closed type connector, the first male connector portion having a closed front end and a first side wall opening formed on the side wall. A first valve body that is elastically deformable on the proximal end side of the first male connector portion from a state in which the first side wall opening is closed, and is the same as the first male connector portion and the first valve body. When the second male connector portion having a shape and a second male connector portion formed with a second side wall opening and the other closed connector including a second valve body are connected, the first male connector portion causes the second side wall opening to be connected. The second valve body that closes the first side is pushed into the proximal end side of the second male connector portion, and the first male body that closes the first side wall opening by the second male connector portion is the first male portion. Pushed into the base end of the connector A first side wall opening, said second side wall opening is characterized in that communicating.

The closed type connector according to the third aspect of the present invention is a closed type connector that can be connected to another medical device having a male connector part in which a distal end is closed and a side wall opening provided in a flat part of the side wall is formed. A housing for partitioning the insertion opening and the flow path into which the male connector portion is inserted from the outside, and a valve body positioned in the insertion opening, and the flat portion of the wall surface defining the insertion opening is the flow One end opening that becomes one end of the path is partitioned, and the valve body that closes the one end opening is pushed in the insertion direction when the male connector portion is inserted into the insertion opening. The opening and the one end opening communicate with each other.

According to the present invention, it is possible to provide a closed connector in which liquid droplets of a chemical liquid hardly remain on the outer wall when removed from a state connected to another medical device.

It is a perspective view showing a closure type connector as one embodiment of the present invention. 2A is a top view of the closed connector shown in FIG. 1, and FIG. 2B is a cross-sectional view taken along the line II in FIG. 2A. FIG. 3 is a cross-sectional view of the closed connector shown in FIG. 1 and another medical device connectable to the closed connector. It is II-II sectional drawing of Fig.2 (a). FIG. 5A is a cross-sectional view showing two closed connectors according to an embodiment of the present invention in a separated state before connection. FIG. 5B is a cross-sectional view of the connector connection body to which the two closed connectors shown in FIG. 5A are connected. It is a figure which shows the infusion set provided with the closure type connector of FIG.

Hereinafter, embodiments of a closed connector according to the present invention will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected to the common member in each figure.

First, a closed connector 1 as one embodiment of a closed connector according to the present invention will be described. FIG. 1 is a perspective view of the closed connector 1. Fig.2 (a) is a top view of the closure type connector 1, FIG.2 (b) is II sectional drawing of Fig.2 (a). FIG. 3 is a cross-sectional view of the closing connector 1 and another medical device 50 that can be connected to the closing connector 1. In addition, the cross section of the closed connector 1 shown in FIG. 3 is the same cross section as FIG.2 (b). In FIG. 3, only a part of the other medical device 50 is shown.

As shown in FIGS. 1 to 3, the closed connector 1 can be connected to another medical device 50 including a male connector portion 52 having a closed end and a side wall opening 51 formed on the side wall. The valve body 3 is provided.

The housing 2 communicates with the male connector flow path 53 in the male connector portion 52 when the male connector portion 52 is inserted and the insertion opening 4 into which the male connector portion 52 in the other medical device 50 is inserted from the outside. The flow path 5 is partitioned. The valve body 3 is located in the insertion opening 4 of the housing 2 and is pushed in while being elastically deformed in the insertion direction A of the male connector portion 52 when the male connector portion 52 of another medical device 50 is inserted.

The wall surface of the housing 2 that defines the insertion opening 4 defines an end opening 6 that is one end of the flow path 5.

The valve body 3 closes the one end opening 6 at the insertion opening 4 in a state where the male connector portion 52 of the other medical device 50 is not inserted into the insertion opening 4.

Further, the valve body 3 that closes the one end opening 6 is pushed in while being elastically deformed in the insertion direction A when the male connector portion 52 is inserted into the insertion opening 4 (see a thick arrow in FIG. 3). Thereby, the side wall opening 51 of the male connector part 52 in the other medical device 50 and the one end opening 6 formed in the wall surface defining the insertion opening 4 in the housing 2 communicate with each other. That is, the male connector flow path 53 defined by the male connector portion 52 in the other medical device 50 and the flow path 5 defined by the housing 2 communicate with each other via the side wall opening 51 and the one end opening 6.

Here, the “closed connector” refers to a liquid that remains in the internal flow path when it is removed from a state where it is connected to another medical device, and leaks to the outside from the connection portion with the other medical device. This means a connector that closes the connecting portion in conjunction with the removal operation.

In the present embodiment, “another medical device” that can be connected to the closed connector 1 is a male that can be inserted into the insertion opening 4 of the closed connector 1 whose front end is closed and a side wall opening is formed on the side wall. The connector part is provided, and the male connector flow path in the male connector part and the flow path 5 of the closed connector 1 are formed by pushing the valve body 3 of the closed connector 1 in the insertion direction A by this male connector part. What is necessary is just to be comprised so that it may communicate through opening, for example, even if it is an open type connector with which the connection part with the closed type connector 1 is maintained in an open state at the time of removal instead of a closed type, it is a closed type A closed connector different from the connector 1 may be used.

Furthermore, “communication” as used herein means not only that the spaces are adjacent and directly connected but also that they are connected via another space. Therefore, for example, the male connector flow path 53 defined by the male connector portion 52 of the other medical device 50 described above is formed through the side wall opening 51 and the one end opening 6 by pushing the valve body 3 in the insertion direction A. 2 is connected to the flow path 5 defined, and the male connector flow path 53 and the flow path 5 communicate with each other.

Hereinafter, each member and characteristic part of the closed connector 1 will be described in detail.

[Housing 2]
The housing 2 includes a barrel portion 7 and a cylindrical portion 8 formed continuously from one end in the direction opposite to the insertion direction A of the barrel portion 7 (hereinafter simply referred to as “extraction direction B”). ing.

The trunk portion 7 defines a trunk channel 5a which is a part of the channel 5 therein. A cylindrical projection 11 is formed at the end of the body 7 in the insertion direction A, and the cylindrical projection 11 defines the other end opening 12 on the side opposite to the one end opening 6 of the flow path 5. is doing. For example, a medical tube or a medical connector can be connected to the cylindrical protrusion 11, and the cylindrical protrusion 11 constitutes the other end side connection portion of the closed connector 1.

As described above, the cylindrical portion 8 is formed continuously in the extraction direction B with respect to the trunk portion 7, and defines the hollow portion 13. Here, FIG. 4 is a II-II sectional view of FIG. As shown in FIG. 4, the cylinder part 8 of this embodiment is comprised by four side wall parts. Specifically, the cylindrical portion 8 is a first side wall portion that is two side wall portions that face each other with the hollow portion 13 interposed therebetween in one direction (vertical direction in FIGS. 2B and 3) orthogonal to the insertion direction A. 8a and the second side wall portion 8b and the direction perpendicular to the insertion direction A and the direction perpendicular to the one direction in which the first side wall portion 8a and the second side wall portion 8b face each other (vertical direction in FIG. 2A) ), A third side wall portion 8c and a fourth side wall portion 8d that are opposed to each other with the hollow portion 13 interposed therebetween.

Moreover, as shown in FIG. 4, the inner wall of the cylinder part 8 of this embodiment is comprised by four continuous plane parts, and the hollow part 13 is divided by these four plane parts. Specifically, the inner wall of the cylindrical portion 8 is a first flat portion that is opposed to the hollow portion 13 in one direction (vertical direction in FIGS. 2B and 3) orthogonal to the insertion direction A. The first flat surface portion 14a of the side wall portion 8a and the second flat surface portion 14b of the second side wall portion 8b are orthogonal to the insertion direction A, and the first flat surface portion 14a and the second flat surface portion 14b are opposite to each other. 3rd plane part 14c of the 3rd side wall part 8c and 4th plane part 14d of the 4th side wall part 8d which pinch | interpose the hollow part 13 in the orthogonal direction (up-down direction in Fig.2 (a)), I have. The first to fourth flat portions 14a to 14d extend substantially parallel to the insertion direction A (and the removal direction B). In addition, the inner wall of the cylinder part 8 is not restricted to what was comprised by four plane parts, for example, it replaced with the 1st plane part 14a, the 2nd plane part 14b, the 3rd plane part 14c, and the 4th plane part 14d. You may be comprised by the formed circular arc surface part.

Here, one end of the hollow portion 13 in the insertion direction A is closed by the top surface 15 of the trunk portion 7. Further, one end of the hollow portion 13 in the removal direction B is not closed by the housing 2 itself. In other words, the hollow portion 13 is a substantially quadrangular prism-shaped recess opening defined by the top surface 15 of the body portion 7 and the first to fourth flat surface portions 14a to 14d of the cylindrical portion 8, and this hollow portion 13 is the main portion. The insertion opening 4 in the embodiment is configured.

Further, in the wall of the first side wall portion 8a, a side wall channel 5b communicating with the body channel 5a adjacent to the body channel 5a is defined. Furthermore, the first flat surface portion 14 a of the first side wall portion 8 a that defines the insertion opening 4 defines one end opening 6 that is one end of the flow path 5. In other words, the one end opening 6 is formed on the side wall of the recess opening as the hollow portion 13. Therefore, the flow path 5 defined by the housing 2 includes the one end opening 6 defined by the first flat surface portion 14a, the side wall flow path 5b defined by the first side wall section 8a, the trunk flow path 5a defined by the trunk section 7, and The end of the cylindrical projection 11 communicates with the other end opening 12 defined by the tip.

As shown in FIGS. 2B and 3, the side wall channel 5 b extends in a direction substantially parallel to the insertion direction A (and removal direction B), and the insertion direction A (and removal) near the one end opening 6. It is bent in a direction that makes an angle with respect to direction B). Therefore, the one end opening 6 is not opened from the front end surface 16 in the removal direction B of the first side wall portion 8a toward the extraction direction B, but is inserted from the first flat surface portion 14a in the thickness direction of the first side wall portion 8a. 4 is opened toward the hollow portion 13.

Here, the 1st side wall part 8a and the 2nd side wall part 8b are comprised in the extraction direction B longer than the 3rd side wall part 8c and the 4th side wall part 8d. In other words, the tips of the first sidewall portion 8a and the second sidewall portion 8b are located in the extraction direction B more than the tips of the third sidewall portion 8c and the fourth sidewall portion 8d. Furthermore, the tip of the second side wall 8b is located in the removal direction B more than the tip of the first side wall 8a. By projecting toward the first side wall portion 8a facing the second side wall portion 8b in the extraction direction B, the valve body 3 accommodated in the hollow portion 13 as the insertion opening 4 hits, A retaining protrusion 17 that restricts movement of the valve body 3 in the removal direction B is formed.

Further, the retaining projection 17 not only restricts the movement of the valve body 3 in the removal direction B, but also when the male connector 52 is inserted into the insertion opening 4 and the valve body 3 is pushed in the insertion direction A. Is engaged with a first locking portion provided in another medical device 50. Thereby, the state by which the male connector part 52 of the other medical device 50 is inserted in the insertion opening 4 can be maintained. Details of this will be described later (see FIG. 5).

The hollow portion 13 as the insertion opening 4 of the present embodiment is not only a space surrounded by the first to fourth side wall portions 8a to 8d, but also the first side wall portion 8a and the second side wall portion. 8b is meant to include a space sandwiched between portions protruding in the extraction direction B from the third side wall portion 8c and the fourth side wall portion 8d.

Furthermore, a locking projection 18 is provided on the outer wall of the first side wall 8 a of the housing 2. The locking projection 18 is provided in the second medical device 50 when the male connector portion 52 of the other medical device 50 is inserted into the insertion opening 4 and the valve body 3 is pushed in the insertion direction A. Engage with the locking portion. Thereby, the state where the male connector part 52 is inserted in the insertion opening 4 can be maintained similarly to the retaining protrusion part 17 described above.

In other words, the connection state between the closed connector 1 of the present embodiment and the other medical device 50 is that the retaining protrusion 17 and the locking protrusion 18 of the closed connector 1 and the first and second of the other medical device 50 are the first and second. It is maintained by engaging the two locking portions.

Next, the outer wall of the housing 2 will be described. As shown in FIG. 1, the housing 2 has a substantially rectangular parallelepiped outer shape that is long in the insertion direction A (and the removal direction B). In other words, on the outer wall of the housing 2 positioned in a direction orthogonal to the insertion direction A, four flat portions 19 configured by a single plane along the insertion direction A are formed.

Specifically, the housing 2 includes a first outer wall plane 20a, a second outer wall plane 20b, a third outer wall plane 20c, and a fourth outer wall plane 20d. Further, the housing 2 does not have a portion protruding outward in the vertical direction (upper side in FIG. 2B) with respect to the first outer wall plane 20a. Similarly, the housing 2 does not have a portion protruding outward in the vertical direction (the lower side in FIG. 2B) with respect to the second outer wall plane 20b. Further, the housing 2 does not have a portion protruding outward in the vertical direction (upper side in FIG. 2A) with respect to the third outer wall plane 20c. Furthermore, the housing 2 does not have a portion protruding outward in the vertical direction (the lower side in FIG. 2A) with respect to the fourth outer wall plane 20d.

Therefore, when the closed connector 1 according to the present embodiment is fixed (detained) in a state of being pressed against the patient's body surface using, for example, a medical tape, any one of the first to fourth outer wall planes 20a to 20d is used. If the whole area is brought into contact with the body surface, the contact area with the body surface is increased as compared with the case where the curved surface portion or the ridge line portion where the two planes intersect is brought into contact with the body surface. Therefore, the burden on the patient's skin can be reduced. Each of the first to fourth outer wall planes 20a to 20d of the present embodiment is a plane portion 19 configured by a single plane along the insertion direction A (parallel to the insertion direction A in the present embodiment). It can be used as a body surface contact portion that can reduce the burden on the skin.

In the present embodiment, the surface areas of the first and second

outer wall planes

20a and 20b are larger than the surface areas of the third and fourth outer wall planes 20c and 20d. Therefore, compared with the case where either one of the third and fourth outer wall planes 20c and 20d is brought into contact with the body surface, the whole area of any one of the first and second

outer wall planes

20a and 20b is set on the body surface. It is possible to further reduce the burden on the patient's skin by abutting on the skin.

Further, the flat surface portion 19 configured by a single plane along the insertion direction A is any in the circumferential direction C (see FIGS. 1 and 2A) around the central axis O of the housing 2 (see FIG. 2A). However, it is not essential to form a plurality in the circumferential direction C as in this embodiment. However, as in the present embodiment, the housing 2 has a substantially quadrangular prism shape and four plane portions 19 are provided, so that all of the first to fourth outer wall planes 20a to 20d are placed on the patient's skin. Since it can be used as a body surface contact portion that can be reduced, it is possible to use one flat surface portion 19 that can be easily contacted according to the patient's posture and fixed location, and to improve the operability of medical personnel. Can do. Furthermore, the housing can be in the shape of a pentagonal column or a hexagonal column, but in such a case, the surface area of one flat surface portion 19 is smaller than that of the quadrangular column, and the effect of reducing the burden on the skin is reduced. To do. Furthermore, the housing can be shaped like a triangular prism. In such a case, although the effect of reducing the burden on the patient's skin by the flat surface portion 19 that abuts on the body surface can be expected, the closed connector 1 is pressed against the body surface. When it is fixed, an acute ridge line between the flat surface portion 19 that actually contacts the body surface and another flat surface portion 19 that does not contact the body surface is easy to bite into the body surface, causing the patient to feel pain. There is a risk of increasing the burden on the patient's skin. Therefore, it is particularly preferable to have a substantially quadrangular prism-like outer shape like the housing 2 of the present embodiment.

Here, the first outer wall plane 20a is constituted by the outer surface of the body portion 7 and the outer surface of the first side wall portion 8a of the cylindrical portion 8. The second outer wall plane 20 b is located on the back surface of the first outer wall plane 20 a and is constituted by the outer surface of the trunk portion 7 and the outer surface of the second side wall portion 8 b of the cylinder portion 8. Further, the third outer wall plane 20 c is constituted by the outer surface of the body portion 7 and the outer surface of the third side wall portion 8 c of the cylindrical portion 8. Furthermore, the fourth outer wall plane 20d is located on the back surface of the third outer wall plane 20c, and is constituted by the outer surface of the body portion 7 and the outer surface of the fourth side wall portion 8d of the cylindrical portion 8.

And the step part 21 which receives a part including the 2nd latching | locking part of the other medical device 50 when connecting with the other medical device 50 is provided in the edge part of the extraction direction B of the 1st side wall part 8a. ing. Specifically, the stepped portion 21 is continuous from the edge portion in the removal direction B of the first outer wall plane 20a and has a stepped surface 22 extending toward the second outer wall plane 20b located on the back surface of the first outer wall plane 20a. The step surface 22 includes a receiving surface 23 that is continuous with the second outer wall plane 20b through the curved portion and extends in the extraction direction B. The receiving surface 23 is provided with the above-described locking protrusion 18 that can be engaged with a second locking portion provided in another medical device 50.

In addition, the latching protrusion part 18 of this embodiment is a rib extended in the direction orthogonal to the insertion direction A (and extraction direction B) on the receiving surface 23, and both sides in the same direction are 3rd side wall parts. It is sandwiched between

extended plate portions

24 and 25 extending from 8c and the fourth side wall portion 8d. The receiving surface 23, the extended plate portion 24, and the extended plate portion 25 of the stepped portion 21 are connected to the second connector 50 of the other medical device 50 when the other medical device 50 is connected to the closed connector 1. The part is guided so as to be accommodated in an appropriate position of the stepped portion 21 while sliding with the part including.

Examples of the material of the housing 2 include polyolefins such as polyethylene, polypropylene, and ethylene-propylene copolymer; ethylene-vinyl acetate copolymer (EVA); polyvinyl chloride; polyvinylidene chloride; polystyrene; polyamide; polyimide; Polycarbonate; poly- (4-methylpentene-1); ionomer; acrylic resin; polymethyl methacrylate; acrylonitrile-butadiene-styrene copolymer (ABS resin); acrylonitrile-styrene copolymer (AS resin); butadiene-styrene Copolymers; Polyesters such as polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polycyclohexane terephthalate (PCT); polyethers; polyether ketones (P Polyether ether ketone (PEEK); Polyetherimide; Polyacetal (POM); Polyphenylene oxide; Modified polyphenylene oxide; Polysulfone; Polyethersulfone; Polyphenylene sulfide; Polyarylate; Aromatic polyester (liquid crystal polymer); Various resin materials such as fluoroethylene, polyvinylidene fluoride, and other fluorine-based resins are listed. Also, a blend or a polymer alloy containing one or more of these may be used.

[Valve 3]
The valve body 3 is located in the insertion opening 4 of the housing 2, and when the male connector portion 52 of the other medical device 50 is not inserted in the closed connector 1, the first side wall portion 8 a described above has the first side. One end opening 6 which is one end of the flow path 5 formed in the flat portion 14a is closed.

The valve body 3 urges the moving member 26 in the removal direction B as the moving member 26 that moves in the insertion direction A while sliding with the wall surface that defines the insertion opening 4 by inserting the male connector portion 52. And an urging member 27 as an urging unit. Note that the biasing member 27 of the present embodiment is an elastic member as shown in FIGS. 2B and 4, and two coil springs are used as the elastic member.

As shown in FIG. 1 and FIG. 2B, the moving member 26 as the moving portion has a substantially quadrangular prism shape, and the first to fourth side wall portions 8a to 8d are arranged in the insertion opening 4. It can move in the insertion direction A against the elastic force of the coil spring as the urging member 27 while sliding with the first to fourth flat portions 14a to 14d. In other words, the moving member 26 has a first side wall in the thickness direction of the first side wall portion 8a (the same direction as the thickness direction of the second side wall portion 8b and one direction orthogonal to the insertion direction A and the extraction direction B). The first flat surface portion 14a that is the inner surface of the first side wall portion 8a and the second flat surface portion 14b that is the inner surface of the second side wall portion 8b are located at a position sandwiched between the portion 8a and the second side wall portion 8b. While moving in the insertion opening 4 in the insertion direction A and the extraction direction B.

Similarly, the moving member 26 is located at a position sandwiched between the third sidewall portion 8c and the fourth sidewall portion 8d in the thickness direction of the third sidewall portion 8c (the same direction as the thickness direction of the fourth sidewall portion 8d). The insertion opening 4 is moved in the insertion direction A and the extraction direction B while sliding with the third flat surface portion 14c which is the inner surface of the third side wall portion 8c and the fourth flat surface portion 14d which is the inner surface of the fourth side wall portion 8d. Moving.

In other words, the moving member 26 is arranged in a direction orthogonal to the insertion direction A (and the removal direction B) with respect to the first side wall portion 8a, and slides on the wall surface defining the one end opening 6 of the first side wall portion 8a. However, it can move in the insertion direction A or the extraction direction B.

In addition, the moving member 26 is urged | biased by the urging | biasing member 27 in the extraction direction B in the state (refer FIG.2 (b)) in which the male connector part 52 is not inserted, The above-mentioned 2nd side wall part 8b It comes into contact with the retaining projection 17 and does not fall out in the removal direction B. In a state where the moving member 26 is in contact with the retaining projection 17, the moving member 26 closes the one end opening 6 formed in the first flat surface portion 14 a. Furthermore, in the present embodiment, in a state where the moving member 26 is in contact with the retaining projection 17, the distal end surface 28 located on the side of the removal direction B of the moving member 26 is the same as the distal end surface 16 of the first side wall portion 8 a. It ’s almost flat.

In this embodiment, the urging member 27 as the urging portion is two coil springs that are located in the insertion opening 4 and are disposed between the top surface 15 of the trunk portion 7 and the moving member 26 (FIG. 2 ( b), see FIG. Therefore, the coil spring as the biasing member 27 moves the moving member 26 in the insertion direction A while compressively deforming when the male connector portion 52 of the other medical device 50 is inserted into the insertion opening 4. Thereby, the moving member 26 is pushed in the insertion direction A while sliding with the first flat portion 14a from the position where the one end opening 6 is closed in the insertion opening 4, and moves to a position where the insertion opening 4 is not closed, The male connector channel 53 of the other medical device 50 communicates with the one end opening 6. When the male connector portion 52 is extracted in the extraction direction B, the moving member 26 is moved in the extraction direction B by the restoring force of the coil spring as the urging member 27 in conjunction with the extraction operation. 6 is returned to the closing position. Details of this connection and removal operation will be described later.

In addition, although the moving part and the urging | biasing part in the valve body 3 of this embodiment are respectively comprised by the moving member 26 and the urging | biasing member 27 which are separate members, it is not restricted to this structure, For example, it is single. You may make it comprise a moving part and an urging | biasing part with one member. Moreover, you may comprise a moving part and an urging | biasing part by combining three or more members. However, considering that the moving portion moves while sliding with the first to fourth flat portions defining the insertion opening, the urging portion is elastically deformed in the insertion direction A and the extraction direction B as in this embodiment. It is preferable that the movable portion is made of an easy elastic member, and the moving portion is made of a hard resin-made moving member that is hard to be elastically deformed in the insertion direction A and the extraction direction B as compared with the urging portion.

Therefore, the moving member 26 as the moving part can be formed of the same material as that of the housing 2 described above. Further, the urging member 27 as the urging portion is not limited to the coil spring of this embodiment, and for example, another elastic member such as a bellows-cylindrical rubber member can be used.

[Connection between the closed connector 1 and another medical device 50]
Next, with reference to FIG. 3, the connection operation | movement of the closure type connector 1 of this embodiment and the other medical device 50 is demonstrated. From the state shown in FIG. 3, the male connector portion 52 in the other medical device 50 is moved in the insertion direction A (leftward in FIG. 3), and the male connector portion 52 is inserted into the insertion opening 4 of the closed connector 1. .

As described above, the male connector portion 52 has a distal end closed and a side wall opening 51 formed on the side wall. When the male connector portion 52 is inserted into the insertion opening 4, the distal end of the male connector portion 52 is The valve member 3 is brought into contact with the distal end surface 28 of the moving member 26, and the moving member 26 is pushed in the insertion direction A against the elastic force of the coil spring as the biasing member 27. At this time, the moving member 26 slides in the insertion direction A while sliding with the first to fourth flat surface portions 14a to 14d, which are the inner walls of the first to fourth side wall portions 8a to 8d, which define the insertion opening 4. And move.

Moreover, the planar outer wall part 54 which divides | segments the side wall opening 51 among the male connector parts 52 is comprised by the plane extended in the insertion direction A (and removal direction B), and the male connector part 52 is inserted into the insertion opening 4. During insertion, the outer wall part 54 that defines the side wall opening 51 of the male connector part 52 also enters the insertion opening 4 while sliding with the first flat surface part 14a.

When the moving member 26 moves in the insertion direction A, the moving member 26 moves from a position at which the one end opening 6 formed in the first flat surface portion 14 a is closed to a position at which it is not closed, and the outer wall portion 54 of the male connector portion 52. The side wall opening 51 moves to a position where it communicates with the one end opening 6.

In a state where the side wall opening 51 and the one end opening 6 communicate with each other, the first locking portion and the second locking portion (not shown) of the other medical device 50 are connected to the retaining projection 17 of the closed connector 1 and the locking. By engaging with the protrusion 18, the position of the other medical device 50 with respect to the closing connector 1 is fixed, and the connection between the closing connector 1 and the other medical device 50 is completed. In a state where the connection between the closed connector 1 and the other medical device 50 is completed, the male connector channel 53 of the male connector portion 52 in the other medical device 50 and the closed type via the side wall opening 51 and the one end opening 6. The flow path 5 of the connector 1 is in fluid-tight communication, and a liquid such as an infusion is passed from the male connector flow path 53 through the flow path 5 of the closed connector 1 to the cylindrical protrusion 11 of the closed connector 1. It becomes possible to transport into another medical device such as a medical tube connected to the.

Here, in the connection state between the closed connector 1 and another medical device 50, the distal end surface 28 of the moving member 26 has a male connector flow path 53, a side wall, and the like, by interposing the closed distal end of the male connector portion 52. The opening 51, the one end opening 6, the channel 5 and the other end opening 12 do not face the connecting channel. That is, the distal end face 28 of the moving member 26 is isolated from the connection flow path, and is in a state where it is difficult to touch a liquid such as an infusion agent.

Then, for example, after the administration of the liquid such as the infusion agent is completed, the male connector portion 52 of the other medical device 50 is moved in the removal direction B, whereby the male connector portion 52 is removed from the insertion opening 4. At this time, when the male connector portion 52 is moved in the removal direction B, the distal end surface 28 of the moving member 26 is also in contact with the distal end of the male connector portion 52 by the restoring force of the coil spring as the urging member 27. It moves in the extraction direction B.

That is, the moving member 26 moves in the extraction direction B while sliding with the first flat surface portion 14a in conjunction with the extraction operation of the male connector portion 52, and returns from the position where the one end opening 6 is not closed to the position where it is closed. . When the male connector portion 52 is removed, the outer wall portion 54 of the male connector portion 52 also moves in the removal direction B while sliding with the first flat surface portion 14a.

When the male connector portion 52 is completely removed (see FIG. 3), the distal end surface 28 of the moving member 26 is in contact with the retaining projection 17 due to the elastic force of the coil spring as the biasing member 27. The one end opening 6 of the flow path 5 is closed by the surface of the moving member 26 on the first flat surface portion 14a side.

As described above, the movement of the valve body 3 is performed from the connection operation to the removal operation of the closed connector 1 and the other medical device 50 including the male connector portion 52 having the distal end closed and the side wall opening 51 formed on the side wall. Since the distal end surface 28 of the member 26 is maintained in contact with the distal end of the male connector portion 52, a liquid such as a chemical solution flowing through the connection flow path in which the flow path 5 and the male connector flow path 53 communicate with each other is the distal end face 28. Touching is suppressed. Therefore, after removing the male connector portion 52 of the other medical device 50, it is difficult for the liquid droplets to remain on the distal end surface 28. Therefore, for example, after a drug solution containing an anticancer agent is administered into the body using the closed connector 1 of this embodiment and the other medical device 50, the closed connector 1 and the other medical device 50 are removed, Since it is suppressed that the droplet of the chemical | medical solution containing an anticancer agent remains on the front end surface 28 of the valve body 3 of the closure type connector 1, the risk that a medical worker may accidentally touch the chemical | medical solution can be reduced. .

When the closed connector 1 and the other medical device 50 in the connected state are separated from each other, the first side wall portion 8a of the closed connector 1 includes the first flat surface portion 14a, the outer wall portion 54, and the side surface of the moving member 26. But slides in contact.

Therefore, since the volume of the flow path 5 hardly changes when the male connector part 52 of the other medical device 50 is removed and the volume of the closed connector 1 is substantially constant when the male connector part 52 is removed, A body fluid such as a patient's blood flows backward from a tubular member such as a catheter placed in the catheter (neutral displacement occurs), and a chemical solution is discharged from the tubular member into the patient's vasculature (Positive displacement Occurring) can be suppressed. That is, the closed connector 1 is a so-called “neutral displacement needleless connector”.

[Connection between two closed connectors 1]
The closed type connector 1 of this embodiment can connect two closed type connectors 1 liquid-tightly. That is, as the other medical device 50 described above, the closed connector 100 having the same shape as the closed connector 1 can be used. This point will be described in detail with reference to FIG.

FIG. 5 (a) is a cross-sectional view showing the two

closed connectors

1 and 100 in a separated state before being connected. FIG.5 (b) shows the connector connection body which is the state which connected the

closing type connectors

1 and 100 by making the

closing type connectors

1 and 100 mutually approach in the left-right direction from the state shown to Fig.5 (a). ing. The closed connector 100 is completely the same as the closed connector 1 of the present embodiment. However, for convenience of explanation, the same parts and the same members are attached to the closed connector 1 for the sake of convenience. This is indicated by adding “00” to the end of the number. For example, the housing of the closed connector 1 is represented by the number “2”, and the housing of the closed connector 100 is represented by “200”.

As shown in FIGS. 5A and 5B, the two

closed connectors

1 and 100 are connected upside down. For example, as shown in FIG. 5, when the first outer wall plane 20a of the closed connector 1 is positioned upward and the second outer wall plane 20b is positioned downward, the second outer wall plane 2000b of the closed connector 100 is The two

closed connectors

1 and 100 can be connected by placing the first outer wall plane 2000a in the state of being located at the upper side and the lower side.

Here, as shown in FIG. 5, the housing 2 of the closed connector 1 includes a first side wall portion 8 a as a male connector portion that can be inserted into the insertion opening 400 defined by the closed connector 100. That is, as described above, the first side wall portion 8a constitutes the first flat surface portion 14a as a wall surface defining the insertion opening 4 of the housing 2 when connecting another medical device 50, Further, when the closed connector 100 is used as another medical device 50, in addition to constituting the first flat surface portion 14a as a wall surface defining the insertion opening 4 of the housing 2, the distal end portion thereof is closed. The male connector portion is inserted into the insertion opening 400 of the connector 100.

Therefore, in other words, the one-end opening 6 is defined on the wall surface that defines the insertion opening 4 of the housing 2 and is also defined on the outer surface of the first side wall portion 8 a as the male connector portion of the housing 2. Will be. In other words, the one end opening 6 defined on the wall surface defining the insertion opening 4 of the closed connector 1 is a side wall opening of the male connector portion inserted into the insertion opening 400 when viewed from the closed connector 100.

Further, the tip of the first side wall portion 8a as the male connector portion is closed. As described above, the one-end opening 6 is not formed on the distal end surface 16 of the first side wall portion 8a. Therefore, when the first side wall portion 8a as the male connector portion is inserted into the insertion opening 400 of the closed connector 100 and the

closed connectors

1 and 100 are connected, the tip of the first side wall portion 8a of the closed connector 1 is connected. The state in which the surface 16 is in contact with the distal end surface 2800 of the valve body 300 of the closed connector 100 and the distal end surface 1600 of the first side wall portion 800a of the closed connector 100 is the distal end surface 28 of the valve body 3 of the closed connector 1. The

flow paths

5 and 500 of the

closed connectors

1 and 100 are communicated with each other while maintaining the state in contact with (see FIG. 5B).

Further, from the state in which the

closed connectors

1 and 100 are connected (see FIG. 5B), the

closed connectors

1 and 100 are moved away from each other, and the flow paths 5 of the

closed connectors

1 and 100 are moved. When the two

closed connectors

1 and 100 are separated from each other after the state where the first and second

closed connectors

1 and 100 are separated from each other, the distal end face 16 of the first side wall portion 8a of the closed connector 1 is separated. Is in contact with the distal end surface 2800 of the valve body 300 of the closed connector 100 and the distal end surface 1600 of the first side wall portion 800a of the closed connector 100 is in contact with the distal end surface 28 of the valve body 3 of the closed connector 1. The abutted state is maintained.

Therefore, after both the

closed connectors

1 and 100 are separated from each other, it is possible to prevent the liquid droplets of the chemical liquid from remaining on the distal end surface 28 of the valve body 3 of the closed connector 1 and the distal end surface 2800 of the valve body 300 of the closed connector 100. Can reduce the risk of medical personnel touching the chemicals.

In the connection operation of connecting both the

closed connectors

1 and 100, the first side wall portion 8a of the closed connector 1 and the first side wall portion 800a of the closed connector 100 are the first flat surface portion 14a and the first flat surface portion. Sliding with 1400a in contact.

Therefore, in a state where the flow path 5 of the closed connector 1 and the flow path 500 of the closed connector 100 communicate with each other, one end opening 6 of the closed connector 1 (a male connector inserted into the insertion opening 400 for the closed connector 100). And the one end opening 600 of the closed connector 100 (corresponding to the side wall opening of the male connector portion inserted into the insertion opening 4 for the closed connector 1) are in contact with each other. The

first plane portions

14a and 1400a communicate with each other in a state surrounded by the contact interface. Thereby, it can suppress that liquids, such as a chemical | medical solution, penetrate | invade into the

insertion openings

4 and 400 of both the

closure type connectors

1 and 100. FIG.

Furthermore, also when separating both the

closed connectors

1 and 100 in the connected state, the first side wall portion 8a of the closed connector 1 and the first side wall portion 800a of the closed connector 100 are separated from the first flat surface portion 14a. The first flat surface portion 1400a slides in contact. Therefore, even during this separation operation, it is possible to prevent liquid such as a chemical solution from entering the

insertion openings

4 and 400 of both the

closed connectors

1 and 100.

Further, when connecting both the

closed connectors

1 and 100, the second side wall portion 8b of the closed connector 1 is accommodated in the step portion 2100 of the first side wall portion 800a of the closed connector 100. Specifically, the retaining projection 17 formed at the tip of the second side wall portion 8b of the closed connector 1 slides with the receiving surface 2300 of the stepped portion 2100 of the closed connector 100, and this retaining projection. 17 gets over the locking projection 1800 provided on the receiving surface 2300. As a result, the retaining projection 17 is hooked and engaged with the locking projection 1800, and the connection between the both

closed connectors

1 and 100 is completed. In this connection operation, the second side wall portion 800 b of the closed connector 100 is also accommodated in the step portion 21 of the first side wall portion 8 a of the closed connector 1. The operations of the retaining projection 1700 and the locking projection 18 at this time are the same as the operations of the retaining projection 17 and the locking projection 1800 described above.

When the closed connector 100 is used as the other medical device 50, the locking projection 1800 of the closed connector 100 is a first provided on the other medical device 50 that engages with the retaining projection 17. A locking part is configured. Further, when the closed connector 100 is used as the other medical device 50, the retaining protrusion 1700 of the closed connector 100 is provided in the second medical device 50 that is engaged with the locking protrusion 18. A locking part is configured.

The sliding between the first flat surface portion 14 a of the closed connector 1 and the first flat surface portion 1400 a of the closed connector 100 during the connecting operation and the separating operation of both the

closed connectors

1 and 100 is performed by the closed connector 1. In the thickness direction of the first side wall portion 8a (the same direction as the thickness direction of the first side wall portion 800a of the closed connector 100), the first side wall portion 8a and the retaining projection 17 of the second side wall portion 8b are closed. This is realized by sandwiching the first side wall portion 800a of the connector 100. In other words, sliding between the first flat surface portion 14a and the first flat surface portion 1400a is caused by the first side wall portion 800a of the closed type connector 100 and the retaining projection 1700 of the second side wall portion 800b. This is realized by sandwiching the first side wall 8a.

That is, in the closed connector 1 of the present embodiment, the distance between the first side wall portion 8a and the retaining projection 17 of the second side wall portion 8b in the thickness direction of the first side wall portion 8a is set to the closed connector 100. The thickness of the distal end portion of the first side wall portion 8a inserted into the insertion opening 400 is substantially equal. Thereby, sliding with the 1st plane part 14a of the closure type connector 1 and the 1st plane part 1400a of the closure type connector 100 is implement | achieved.

Hereinafter, the connection operation between the closed connector 1 and the closed connector 100 will be described. Here, for convenience of explanation, the male connector portion (first side wall portion 8a) of the housing 2 of the closed connector 1 is referred to as “first male connector portion”, the insertion opening 4 as “first insertion opening 4”, and the valve body 3. Is described as “first valve body 3”. Further, the male connector portion (first side wall portion 800a) of the housing 200 of the closed connector 100 is defined as “second male connector portion”, the insertion opening 400 as “second insertion opening 400”, and the valve body 300 as “second valve”. It is described as “body 300”.

When the second male connector portion is inserted into the first insertion opening 4 for connection between the closed connector 1 and the closed connector 100, the first male connector portion is inserted into the second insertion opening 400, and the first While the valve body 3 is pushed in by the second male connector portion and the second valve body 300 is pushed in by the first male connector portion, the side wall opening of the second male connector portion (one end opening 600 of the first side wall portion 800a). And the side wall opening of the first male connector part (one end opening 6 of the first side wall part 8a) communicate with each other.

The second male connector portion (first side wall portion 800a) of the closed connector 100 moves in the insertion direction A (leftward in FIG. 5) relative to the closed connector 1, and the closed connector 1 When inserted into the first insertion opening 4, the first valve body 3 located in the first insertion opening 4 is pushed in while being elastically deformed in the insertion direction A, and the side wall opening (first It moves from the state of closing the one end opening 6) of the side wall 8a to the state of not closing. Similarly, the first male connector portion (first side wall portion 8a) of the closed connector 1 moves relative to the closed connector 100 in the reverse direction of the insertion direction A (right direction in FIG. 5). When inserted into the second insertion opening 400 of the closed connector 100, the second valve body 300 located in the second insertion opening 400 is pushed in while being elastically deformed in the direction opposite to the insertion direction A, and the second male connector. It moves from the state which closes the side wall opening (one end opening 600 of the 1st side wall part 800a) to the state which is not obstruct | occluded.

In other words, the above-described closed connector 1 can be connected to another closed connector 100 and has a first male connector portion that is closed at the tip and has one end opening 6 as a side wall opening formed on the side wall. A side wall portion 8a and a valve body 3 that can be elastically deformed from the state in which the one end opening 6 is closed to the proximal end side (left side in FIG. 5) of the first side wall portion 8a are provided. Similarly, the closed connector 100 includes a first side wall portion 800a as a male connector portion in which one end opening 600 as a side wall opening is formed, and a base end of the first side wall portion 800a from a state in which the one end opening 600 is closed. And a valve body 300 that is elastically deformable on the side (right side in FIG. 5).

When the closed connector 100 is connected to the closed connector 1, the valve body 300 that closes the one end opening 600 is pushed into the proximal side of the first side wall portion 800 a by the first side wall portion 8 a, The valve body 3 that closes the one end opening 6 is pushed into the proximal end side of the first side wall portion 8a by the first side wall portion 800a, and the one end opening 6 and the one end opening 600 communicate with each other.

Further, as shown in FIG. 5B, in the state of the connector connection body in which both the

closed connectors

1 and 100 are connected, the first outer wall plane 20 a of the closed connector 1 and the second outer wall of the closed connector 100. The plane 2000b is flush with the second outer wall plane 20b of the closed connector 1 and the first outer wall plane 2000a of the closed connector 100 is flush. Therefore, the connector connection body shown in FIG. 5 (b) forms not only the

closed connectors

1 and 100 but also the outer shape of a substantially quadrangular prism as a whole, to the skin when being fixed to the body surface. It is possible to reduce the burden.

[Infusion set 70 with closed connector 1]
Finally, the infusion set 70 including the above-described closed connector 1 will be described. FIG. 6 is a view showing the infusion set 70. In addition, since the detail of the closing type connector 1 was mentioned above, description is abbreviate | omitted here.

The infusion set 70 can constitute an infusion line that connects from an infusion holder such as an infusion bag (not shown in FIG. 6) to an indwelling needle (not shown in FIG. 6). Specifically, the infusion set 70 includes a medical tube 71, a bottle needle 72 that can puncture the infusion holder, a drip tube 73 that can visually check the flow rate of a liquid such as a chemical solution supplied from the infusion holder, The adjustment clamp 74 that can change the flow rate of the liquid in the medical tube 71 into a plurality of states, the closing clamp 75 that closes the medical tube 71, and the distal end of the medical tube 71 (the downstream end of the infusion line) ) Connected to the closed connector 1.

The distal end of the medical tube 71 is connected to the cylindrical protrusion 11 of the closed connector 1 and is fixed to the closed connector 1 by adhesion or the like. The medical tube 71 and the closed connector 1 are liquid-tightly connected. That is, the closed connector 1 constitutes a distal end portion of an infusion line constituted by the infusion set 70.

The infusion set 70 is composed of the above-described constituent members, but it is sufficient that the infusion set 70 includes at least a medical tube and a closed connector connected to one end of the medical tube. It is not limited to. Therefore, for example, a configuration including a plurality of medical tubes and a connector for connecting the plurality of medical tubes, or an infusion set including another component other than the components included in the above-described infusion set 70 may be used.

The closed connector according to the present invention can be realized by various specific configurations, and is not limited to the configurations described in the above-described embodiments, but is a summary of the invention described in the claims. Various modifications are possible without departing from the scope of the present invention.

The present invention relates to a medical closed connector.

1, 100: Closed connector 2, 200: Housing 3: Valve body (first valve body)
4: Insertion opening (first insertion opening)
5, 500: channel 5a: trunk channel 5b: side wall channel 6: one end opening (side wall opening, first side wall opening)
7: trunk part 8: cylinder part 8a: first side wall part (male connector part, first male connector part)
8b: 800b: second side wall part 8c: third side wall part 8d: fourth side wall part 11: cylindrical projection part 12: other end opening 13: hollow part (insertion opening)
14a, 1400a: 1st plane part 14b: 2nd plane part 14c: 3rd plane part 14d: 4th plane part 15: Top surface 16 of trunk | drum, 1600: Tip surface 17 of 1st side wall part, 1700: Retaining prevention Protrusion 18, 1800: locking protrusion 19:

flat surface

20 a, 2000 a: first outer wall flat surface (flat surface)
20b, 2000b: second outer wall plane (plane portion)
20c: Third outer wall plane (plane portion)
20d: Fourth outer wall plane (plane portion)
21, 2100: step portion 22: step surface 23, 2300: receiving surface 24, 25: extension plate portion 26: moving member 27: biasing member 28, 2800: distal end surface 50: other medical device 51: side wall opening 52 : Male connector part 53: Male connector flow path 54: Outer wall part 70: Infusion set 71: Medical tube 72: Bottle needle 73: Drip tube 74: Adjustment clamp 75: Closure clamp 300: Valve body (second valve body) )
400: Insertion opening (second insertion opening)
600: one end opening (side wall opening, second side wall opening)
800a: 1st side wall part (male connector part, 2nd male connector part)
A: Insertion direction B: Removal direction C: Circumferential direction O: Center axis of housing

Claims

A closed connector to which another medical device having a male connector portion with a distal end closed and a side wall opening formed in the side wall can be connected,
A housing that defines an insertion opening and a flow path into which the male connector portion is inserted from the outside;
A valve body that is located in the insertion opening and is pushed in while being elastically deformed in the insertion direction when the male connector portion is inserted,
The wall surface that defines the insertion opening defines one end opening that is one end of the flow path,
The side wall opening and the one end opening communicate with each other when the valve body closing the one end opening is pushed in the insertion direction when the male connector portion is inserted into the insertion opening. Closed connector.
The housing includes a retaining protrusion that restricts the valve body from moving in a direction opposite to the insertion direction,
When the male connector portion is inserted into the insertion opening and the valve body is pushed in the insertion direction, the retaining projection portion engages with a locking projection portion provided in the other medical device. The closed connector according to claim 1, wherein:
3. The closure according to claim 1, wherein the outer wall of the housing located in a direction orthogonal to the insertion direction is formed with a flat portion configured by a single plane along the insertion direction. Type connector.
The housing includes a male connector portion that can be inserted into an insertion opening defined by the other medical device and that forms the wall surface that defines the insertion opening of the housing.
The said one end opening is divided in the outer surface of the said male connector part of the said housing, The closure type connector as described in any one of the Claims 1 thru | or 3 characterized by the above-mentioned.
The closed connector according to claim 4, wherein a tip of the male connector portion of the housing is closed.
In the insertion opening defined by the other medical device, a valve body that is pushed in while being elastically deformed in a direction opposite to the insertion direction when the male connector portion of the housing is inserted is positioned.
The male connector portion, the insertion opening and the valve body of the housing are the first male connector portion, the first insertion opening and the first valve body, and the male connector portion, the insertion opening and the valve body of the other medical device are the second male connector. Part, second insertion opening and second valve body,
When the second male connector portion is inserted into the first insertion opening, the first male connector portion is inserted into the second insertion opening, and the first valve body is pushed in by the second male connector portion. In addition, when the second valve body is pushed in by the first male connector portion, the side wall opening of the second male connector portion and the one end opening of the first male connector portion communicate with each other. The closed connector according to claim 4 or 5.
The other medical device is a closed connector;
The closed connector according to any one of claims 1 to 6, wherein the other medical device has the same shape.
A closed connector connectable to another closed connector,
A first male connector portion whose front end is closed and a first side wall opening is formed on the side wall, and a first valve which is elastically deformable from the state where the first side wall opening is closed to the proximal end side of the first male connector portion With body,
When the second male connector portion having the same shape as the first male connector portion and the first valve body and having the second male connector portion and the second valve body formed with the second side wall opening are connected. The first male connector portion pushes the second valve body closing the second side wall opening into the proximal end side of the second male connector portion, and the second male connector portion causes the first side wall to be pushed. The closed connector, wherein the first valve body that closes the opening is pushed into a proximal end side of the first male connector portion, and the first side wall opening and the second side wall opening communicate with each other.
A closed connector to which another medical device including a male connector portion in which a distal end is closed and a side wall opening provided in a flat portion of the side wall is formed can be connected,
A housing that defines an insertion opening and a flow path into which the male connector portion is inserted from the outside;
A valve body located in the insertion opening,
The flat portion of the wall surface defining the insertion opening defines one end opening that is one end of the flow path,
When the valve body closing the one end opening is pushed in the insertion direction when the male connector portion is inserted into the insertion opening, the side wall opening and the one end opening communicate with each other. Closed connector to do.