JPWO2013002320A1 - Connector assembly and male connector - Google Patents

Abstract

A connector assembly (1) comprising a male connector (2A) and a female connector (24A), wherein the male connector (2A) has an inner wall portion (5) protruding from the bottom (5) of the outer wall portion (4) 7), an outer cylinder part (3), a male side valve body part (11), a valve body holding part (15), and an inner cylinder part (19). The female connector (24A) The connector main body part (25) and the female side valve body part (28) are provided, and the outer cylinder part (3) is moved to the front end side along the connector main body part (25) to the engaged position. Thus, the connectors (2A) and (24A) are fixed, and at the same time, the inner wall (7) opens the male valve body (11) and the female valve body (28), and the outer cylinder (3 ) To the base end side along the connector main body (25), the connector (2A), 24A) it has configuration and which is removed.

Description

  The present invention relates to a connector assembly and a male connector for connecting a liquid flow path used in a medical device.

  In a medical device that requires connection of a liquid flow path, connection and removal of the liquid flow path are performed as necessary when the liquid is allowed to flow continuously and temporarily. At this time, it is known to arrange a connector assembly for connecting and removing the flow path in the middle of the flow path.

  For example, in a medical device used for urine management, a catheter side connector provided at the end of the catheter body of a urinary catheter and a bag side connector provided at the end of a urine collection tube connected to the urine collection bag Are connected by fitting or the like to form a connector assembly. Then, the flow path of the urinary catheter and the flow path of the urine collection tube are connected via the connector assembly.

  Conventionally, as such connector assemblies, those in the forms described in Patent Documents 1 and 2 have been used. Specifically, Patent Document 1 describes a female connector as a catheter-side connector of a connector assembly and a male connector as a bag-side connector of a connector assembly. It is described that a valve body part) is provided. In the connector assembly of Patent Document 1, when the female connector is fitted to the male connector, the elastic boot of the male connector contracts in the length direction, and the slit opens in accordance with the contraction. And the male connector are connected to each other.

  Patent Document 2 describes a first connector as a catheter-side connector of a connector assembly and a second connector as a bag-side connector of the connector assembly. The first connector includes a first housing and an end portion thereof. And a second connector (second valve body portion) covering the end of the second housing. The second valve (second valve body portion) covers the second housing. ing. And in the connector assembly of patent document 2, while the 1st housing and the 2nd housing fit, the 1st valve and the 2nd valve contact, and the 1st connector and the 2nd The connector is connected and fixed. In addition, after fixing the connector, the first housing is disposed in the second housing so as to be close to the second valve so as to push open both slits of the second valve and the first valve. By moving to the valve side, the flow path of the first connector and the flow path of the second connector are connected.

JP 2011-25066 A JP 2010-518330 A

  However, in the connector assembly in which the female connector described in Patent Document 1 does not include the valve body portion, the flow path is in an open state. Therefore, when the female connector and the male connector are connected and disconnected, if the elastic boot (valve element) of the male connector on the bag side is contaminated by urine leakage or the like, the elastic boot causes the flow of the female connector on the catheter side. The road is polluted and fungi grow in the channel. As a result, the patient may be infected with the propagated bacteria.

  In the connector assembly described in Patent Document 2, the first connector and the second connector are connected and fixed so that they cannot be removed. As a result, since the urine collection bag is always connected to the urinary catheter placed in the patient, there is a problem that the movement, bathing, rehabilitation and the like of the patient are hindered. Further, when the urine collection bag is always connected, when the urine backflow (urine leakage) or the like occurs from the urine collection bag, the flow path of the first connector on the catheter side is contaminated, Bacteria may propagate and the patient may be infected with the propagated bacteria.

  Further, the connector assembly described in Patent Document 2 requires a two-stage operation of fixing the connector and then connecting (communication) the flow path. In the connector described in Patent Document 2, the connector is fixed by fitting the first housing and the second housing, and the flow path of the connector is communicated by the stem. Road communication cannot be done with the same parts. As a result, the work becomes complicated, the connector is not sufficiently fixed, the flow path of the first connector on the catheter side is contaminated, the bacteria propagate in the flow path, and the patient may be infected with the propagated bacteria. There is. In addition, there is a problem that the first valve and the second valve are not sufficiently pushed open by the movement of the stem, and the connection of the flow path is not reliable. Furthermore, in the connector assembly described in Patent Document 2, there is also a problem that, for example, the urinary catheter connected to the connector is pulled in the longitudinal direction by the movement of the stem.

  Therefore, the present invention was devised to solve such a problem, and the problem is that the flow path can be easily and reliably connected, and the patient is not infected with bacteria. Another object of the present invention is to provide a connector assembly and a male connector that do not hinder patient behavior.

  In order to solve the above-described problem, a connector assembly according to the present invention is a connector assembly including a male connector and a female connector that are connected to each other, and the male connector includes a cylindrical outer wall, A bottom portion formed at the base end of the outer wall portion, and a cylindrical inner wall portion protruding from the bottom portion into the outer wall portion; and on the distal end side of the inner peripheral surface of the outer wall portion, the female connector and An outer cylinder portion in which a male side connection portion to be engaged is formed, a male side valve body portion in which a valve body surface is exposed on the distal end side of the outer wall portion, and a slit is formed; and the male side valve It consists of a cylindrical body that holds the body part, the valve body holding part into which the inner wall part is inserted, and a cylindrical body that is arranged inside the inner wall part, and the outer peripheral surface of the inner wall part is An inner surface that is in contact with the inner peripheral surface and in which a liquid flow path is formed. The female connector comprises a cylindrical body having a liquid flow passage formed therein, and is engaged with the male side connection portion of the male connector on the base end side of the outer peripheral surface thereof. A connector body portion formed with a female side connection portion to be mated, and a female side valve body portion provided with a slit formed so that the valve body surface is exposed on the proximal end side of the connector body portion. When the female connector and the male connector are connected, the male valve body is brought into contact with the female valve body, and from this state, the outer wall is engaged with the outer wall. The male connector is fixed to the female connector by moving to the distal end side along the outer peripheral surface of the connector main body portion, and at the same time, the inner wall portion is connected to the male valve body portion and the Structure for opening the slit of the female valve body When the male connector is detached from the female connector, the outer wall portion is engaged with the outer wall portion by moving the outer cylinder portion to the proximal side along the outer peripheral surface of the connector main body portion. Is released, and the male connector is removed from the female connector.

  In the connector assembly according to the present invention, the inner wall portion of the outer cylinder portion may have an inclined surface that tapers toward the tip side. Further, the inner wall portion may have an opening portion that opens to the inclined surface and communicates with the flow path formed in the inner cylinder portion.

  In the connector assembly according to the present invention, the female valve body portion extends from the plate-shaped valve body portion forming the valve body surface and the peripheral edge of the valve body portion and is fitted to the connector body portion. And a rib. The female valve body includes a head that forms the valve body surface, and a bellows-shaped body that is formed in a cylindrical shape continuously to the head and elastically deforms in the length direction. The body portion may be contracted in the length direction by the pressing of the inner wall portion, and a slit formed in the head portion may be opened.

  According to the said structure, the connection and fixation of connectors, and the connection of a flow path can be performed by one operation | movement and the same components of a movement of an outer cylinder part. That is, when connecting the male connector to the female connector, the male valve body is brought into contact with the female valve body, and from this state, the outer cylinder is moved to the position where the outer wall is engaged. By moving to the tip side along the outer peripheral surface of the main body, the male connector is fixed to the female connector, and at the same time, the inner wall portion of the outer cylinder portion cuts the slits of the male valve body and female valve body. Open. Therefore, the connection work between the connectors becomes easy, and the occurrence of poor fixing between the connectors and poor opening of the valve body can be prevented. Thereby, the contamination of the flow path inside the connector and the propagation of bacteria due to the contamination are prevented, and the connection of the flow path is also ensured.

  Moreover, when both connectors are provided with a valve body portion, the closed state of the flow path can be maintained, and contamination of the flow path and propagation of bacteria due to the contamination can be prevented. Since the valve body surface can be sterilized by providing the valve body part with the exposed valve body surface, contamination of the flow path when the valve body parts come into contact with each other, and propagation of bacteria due to the contamination Further prevention is possible.

  Furthermore, since the male connector can be removed from the female connector, a urine collection bag or the like connected to the male connector can be separated from a urinary catheter or the like connected to the female connector and placed in a hospital room or the like. It becomes. As a result, movement of the patient, bathing, rehabilitation and the like are free. And since the backflow (urine leakage) etc. from a urine collection bag etc. by a patient's movement etc. can be prevented, the propagation of bacteria by the contamination of the flow path and the contamination can further be prevented.

  The configuration of the male connector according to the present invention is the same as the configuration of the male connector of the connector assembly described above. The operation of the male connector is the same as that of the connector assembly described above.

  ADVANTAGE OF THE INVENTION According to this invention, while being able to connect a flow path easily and reliably, a patient assembly which does not inhibit a patient's action while a patient does not infect a microbe and a male connector can be provided.

It is a perspective view which shows the structure of embodiment of a connector assembly. It is a cross-sectional view of FIG. It is a cross-sectional view which shows one step of the operation | movement at the time of the connection of a connector. It is a cross-sectional view which shows one step of the operation | movement at the time of the connection of a connector. It is a cross-sectional view which shows one step of the operation | movement at the time of the connection of a connector. It is a perspective view which shows the structure of another embodiment of a male connector. The structure of another embodiment of a connector assembly is shown, (a) is the cross-sectional view before a connection, (b) is the cross-sectional view which abbreviate | omitted a part after a connection.

An embodiment of a connector assembly according to the present invention will be described with reference to the drawings.
As shown in FIGS. 1 and 2, the connector assembly 1 includes a male connector 2A and a female connector 24A that are connected to each other. In the present invention, the proximal side means the bag side connected to the urine collection tube or the like of the urine collection bag, and the distal end side means the catheter side connected to the urinary catheter or the like placed in the patient. Hereinafter, when both the male connector 2A and the female connector 24A are meant, they are simply referred to as connectors.

  The male connector 2 </ b> A includes an outer cylinder part 3, a male side valve body part 11, a valve body holding part 15, and an inner cylinder part 19. The male connector 2 </ b> A includes a connecting portion 35. However, the connecting portion 35 is not an essential configuration.

  The material constituting the outer cylinder part 3, the valve body holding part 15 and the inner cylinder part 19 has a certain degree of flexibility, durability, etc., for example, synthesis of polycarbonate, polyacetal, polypropylene, polyacrylamide, polyethylene terephthalate, etc. Any resin may be used, but the present invention is not limited thereto.

  The material constituting the male side valve body portion 11 is an elastic material excellent in blocking property that does not cause leakage of liquid when the connector is connected or disconnected. For example, various materials such as natural rubber, isoprene rubber, butadiene rubber, etc. Various elastomers such as rubber materials, styrene-based, polyolefin-based, and polyvinyl chloride-based materials may be used, but are not limited thereto.

  The outer cylinder part 3 is continuous with the cylindrical outer wall part 4, the base end side of the outer wall part 4, that is, the bottom part 5 formed at the base end, and the cylinder protruding from the bottom part 5 to the inside of the outer wall part 4 The inner wall portion 7 has a shape. The outer wall portion 4 is formed with a male side connection portion 10 on the distal end side of the inner peripheral surface thereof, and the bottom portion 5 is formed with an opening portion 6 through which the connecting rod 18 of the valve body holding portion 15 is inserted in an arc shape. Has been. Further, when the connector is connected, the inner wall portion 7 protrudes into the connector main body portion 25 of the female connector 24A in accordance with the movement of the outer tube portion 3, and the male side valve body portion 11 and the female side valve body. The part 28 is opened. Therefore, it is preferable that the inner wall portion 7 protrudes to a position where the distal end portion is close to the proximal-side surface of the male valve body portion 11, that is, a position close to the opening surface on the distal end side of the outer wall portion 4. . In addition, although circular shape is preferable for the longitudinal cross-sectional shape of the outer wall part 4, the bottom part 5, and the inner wall part 7, it is not limited to this.

  The male side connection part 10 engages with the female side connection part 27 formed in the connector main body part 25 of the female connector 24A, and is, for example, a concave groove part or a convex tab. And when it is a concave groove part, in order to guide the rotational movement of the outer cylinder part 3 (outer wall part 4) at the time of connection or removal of a connector, it is a base end from the front end side of the inner peripheral surface of the outer wall part 4. The groove width is preferably increased toward the side, but may be a constant groove width.

  The male side valve body portion 11 is disposed on the distal end side of the outer wall portion 4 so that the valve body surface 13a formed with the slit 12 that is opened and closed by the inner wall portion 7 is exposed. And such arrangement | positioning is achieved by hold | maintaining the male side valve body part 11 at the front end side of the valve body holding | maintenance part 15 arrange | positioned inside the outer wall part 4. FIG. In addition, when the valve body surface 13a is exposed to the distal end side, the valve body surface 13a can be sterilized when the connector is connected or removed, and the liquid flow path 22 formed in the inner cylinder portion 19 is provided. It can be prevented from being contaminated.

  Moreover, the male side valve body part 11 can further prevent contamination of the flow path 22 by setting its size to be different from that of the female side valve body part 28 of the female connector 24A. The slit 12 is preferably formed in a direction different from the slit 29 formed in the female valve body 28. By forming in such a direction, the liquid leakage from the opening part of the slit 29 by the inner wall part 7 can further be prevented. However, the slit 12 may be formed in the same direction as the slit 29.

  The male valve body 11 includes a plate-like valve main body 13 serving as the valve body surface 13 a on which the slit 12 is formed, and a rib 14 extending from the peripheral edge of the valve main body 13. The rib 14 is held by fitting to the valve body holding portion 15. The male side valve body portion 11 is not limited to the above configuration as long as it is held by the valve body holding portion 15 and can be opened and closed by the inner wall portion 7.

  The valve body holding part 15 consists of a cylindrical body which holds the male side valve body part 11, and the inner wall part 7 of the outer cylinder part 3 is inserted in the inside. And the valve body holding | maintenance part 15 hold | maintains the inner wall part 7 liquid-tightly by hold | maintaining the male side valve body part 11 to the front end side. In addition, by disposing the sealing material 23 such as an O-ring on the base end side of the valve body holding part 15, the inner wall part 7 is further liquid-tightly held.

  Further, the valve body holding portion 15 includes a holding main body portion 16 formed of a cylindrical body, a bottom portion 17 formed at the base end of the holding main body portion 16, a connecting rod 18 extending from the bottom portion 17 to the base end side, Is provided. The connecting rod 18 is connected to a connecting portion 35 connected to the proximal end side of the inner cylinder portion 19 disposed inside the inner wall portion 7. In addition, if the valve body holding | maintenance part 15 is the structure which hold | maintains the male side valve body part 11 and the inner wall part 7 is penetrated, it will not be limited to the said structure. Moreover, although the vertical cross-sectional shape of the holding | maintenance main-body part 16 has preferable circular shape, it is not limited to this.

  The inner cylinder portion 19 is formed of a cylindrical body disposed inside the inner wall portion 7, and an outer peripheral surface thereof abuts on an inner peripheral surface of the inner wall portion 7, and a liquid flow path 22 is formed therein. And the flow path 22 is a straight pipe flow path with a flow path diameter of 6 mm or more, it is preferable that protrusions etc. are not formed in the inside and a flow path diameter is uniform. As a result, clogging of wastes and the like in the liquid in the flow path 22, retention of the liquid, and generation of turbulent flow can be prevented, and bacterial growth in the flow path 22 can be prevented.

  The inner cylinder portion 19 includes a cylinder main body portion 20 made of a cylindrical body, a groove portion 21 formed on the outer peripheral surface on the distal end side of the cylinder main body portion 20, and a sealing material 23 such as an O-ring disposed in the groove portion 21. And comprising. By providing the sealing material 23, the tube main body 20 is liquid-tightly held inside the inner wall 7. In addition, the inner cylinder part 19 will not be limited to the said structure, if it is the structure which is arrange | positioned inside the inner wall part 7 and the flow path 22 is formed. And although the longitudinal cross-sectional shape of the cylinder main-body part 20 has preferable circular shape, it is not limited to this.

  The connection part 35 is arrange | positioned at the base end side of the inner cylinder part 19, and connects the valve body holding | maintenance part 15 and the inner cylinder part 19, The structure is not specifically limited. And the valve body holding | maintenance part 15 and the inner cylinder part 19 are connected via the connection part 35, and the movement of the outer cylinder part 3 in the case of a connection or removal of a connector becomes smooth.

The female connector 24 </ b> A includes a connector main body 25 and a female valve body 28.
In addition, the material which comprises the connector main-body part 25 should just be comprised with the material described in the outer cylinder part 3 etc. of male type connector 2A, and is not specifically limited. Moreover, the material which comprises the female side valve body part 28 should just be comprised with the material described with the male side valve body part 11 of 2 A of male connectors, and is not specifically limited.

  The connector main body portion 25 is formed of a cylindrical body in which a liquid flow path 26 is formed, and a female side connection portion 27 that engages with the male side connection portion 10 of the male connector 2A on the base end side of the outer peripheral surface thereof. Is formed. The female side connection portion 27 is, for example, a convex tab or a concave thread groove. Moreover, although the longitudinal cross-sectional shape of the connector main-body part 25 has preferable circular shape, it is not limited to this.

  The female side valve body portion 28 is arranged so that the valve body surface 30 a in which the slit 29 is formed on the proximal end side of the connector main body portion 25 is exposed. Further, since the valve body surface 30a is exposed to the proximal end side, it is possible to disinfect the valve body surface 30a when the connector is connected or disconnected, and the liquid flow path 26 formed in the connector main body 25 is provided. Can be prevented from being contaminated. Further, the slit 29 is formed in a direction different from that of the slit 12 formed in the male valve body portion 11, since it further prevents liquid leakage from the opening portion of the slit 29 by the inner wall portion 7 of the male connector 2 </ b> A. Although it is preferable, it may be in the same direction.

  The female valve body 28 includes a plate-like valve main body 30 that becomes the valve body surface 30 a on which the slit 29 is formed, and a rib 31 that extends from the peripheral edge of the valve main body 30. The rib 31 holds the connector main body 25 by fitting. The female valve body 28 is not limited to the above configuration as long as it is held by the connector main body 25 and can be opened and closed by the inner wall 7 of the male connector 2A.

  Next, the operation | movement at the time of the connection or removal of the connector in the connector assembly 1 is demonstrated using FIGS.

The operation of connecting the male connector 2A to the female connector 24A is performed according to the following procedure.
(1) As shown in FIG. 3, the male connector 2A is brought close to the female connector 24A, and the female side connection portion 27 formed in the connector main body portion 25 and the outer cylinder portion 3 (outer wall portion 4) are formed. The male side valve body 11 is brought into contact with the female side valve body 28 at a position where the male side connection part 10 is fitted. At this time, before contact, the valve body surface 30a of the female side valve body portion 28 and the valve body surface 13a of the male side valve body portion 11 are disinfected by alcohol wiping or the like, thereby contaminating the flow paths 26 and 22. Can be prevented.

(2) From the state of (1), as shown in FIG. 4, the outer wall portion 4 is rotated and moved to the distal end side along the outer peripheral surface of the connector main body portion 25. Thereby, while the female side connection part 27 moves in the male side connection part 10, the inner wall part 7 protrudes inside the connector main body part 25, the slit 12 of the male side valve body part 11 opens, and the female side valve The slit 29 of the body part 28 is also opened, and the flow path 26 and the flow path 22 are partially communicated. At this time, if the outer diameter of the female valve body portion 28 is set larger than the outer diameter of the male valve body portion 11, liquid leakage from the contact surfaces of both valve body portions can be further prevented, and the liquid from the connector can be prevented. It is preferable because leakage can be prevented.

(3) From the state of (2), as shown in FIG. 5, the outer wall portion 4 is further rotated and moved to the distal end side until the female side connecting portion 27 engages with the male side connecting portion 10. 4 is engaged with the connector main body 25 to connect and fix the male connector 2A to the female connector 24A. As a result, the flow path 26 and the flow path 22 are completely communicated and connected. At this time, both the male side valve body part 11 and the female side valve body part 28 are arranged between the outer peripheral surface of the inner wall part 7 and the inner peripheral surface of the connector main body part 25, and the inner wall part 7 Since the connector main body portion 25 is liquid-tightly closed, liquid leakage from the connector can be prevented.

  The operation of removing the male connector 2A from the female connector 24A is performed by reversing the moving direction in the order of (3), (2), and (1). That is, the outer cylinder 3 (outer wall 4) is moved. By rotating and moving to the base end side along the outer peripheral surface of the connector main body portion 25, the engagement between the female side connection portion 27 and the male side connection portion 10 is released, and the engagement between the outer wall portion 4 and the connector main body portion 25 is established. Release the match. As a result, the male connector 2A is removed from the female connector 24A. And the flow paths 26 and 22 are obstruct | occluded by the re-occlusion property of a valve body part (female side valve body part 28, male side valve body part 11).

  In addition, in said (2) and (3), although the outer cylinder part 3 (outer wall part 4) was moved by rotation, a movement is not limited to a rotational movement, The form of the female side connection part 27 and the male side connection part 10 Depending on the case, parallel movement may be used.

Next, another embodiment of the connector assembly will be described.
In the connector assembly, a male connector 2B as shown in FIG. 6 may be used as a male connector constituting the connector assembly.

  The male connector 2B is the same as the male connector 2A (see FIG. 1) in that it includes an outer cylinder part 3, a male side valve body part 11, a valve body holding part 15, and an inner cylinder part 19. However, it differs in that the inner wall portion 7 of the outer cylinder portion 3 has an inclined surface 9 that tapers toward the tip side. When the inner wall portion 7 has the inclined surface 9 on the distal end side, the valve body portions (male side valve body portion 11 and female side valve body portion 28) can be easily opened when the connector is connected. The inclination angle of the inclined surface 9 is not particularly limited.

  Further, the inner wall portion 7 may have an opening portion 8 that opens to the inclined surface 9 and communicates with the flow path 22 formed in the inner cylinder portion 19. The number of openings 8 and the opening area are not particularly limited.

In the connector assembly, a female connector 24B as shown in FIGS. 7A and 7B may be used as the female connector constituting the connector assembly.
The female connector 24B is the same as the female connector 24A (see FIG. 1) in that it includes a connector main body portion 25 and a female side valve body portion 28. And the body part 34 are different.

  The female valve body 28 includes a head 33 that forms a valve body surface 33a in which a slit 32 is formed, and a bellows-shaped body that is formed in a cylindrical shape continuously to the head 33 and elastically deforms in the length direction. Unit 34. Then, the female connector 24B causes the body portion 34 of the female side valve body portion 28 to contract in the length direction due to the pressure by the protrusion of the inner wall portion 7 of the male connector 2A into the connector main body portion 25, and the head portion The slit 32 formed in 33 opens. Thereby, the flow path 26 of the female connector 24B and the flow path 22 of the male connector 2A are connected.

  Although not shown, the connector assembly according to the present invention may include a male connector 2B and a female connector 24B.

In addition, about the male connector which concerns on this invention, since it is the same as the male connector which comprises an above described connector assembly, description is abbreviate | omitted.
In the above description, the proximal side is the bag side and the distal side is the catheter side. However, the proximal side may be the catheter side and the distal side may be the bag side.

DESCRIPTION OF SYMBOLS 1 Connector assembly 2A, 2B Male connector 3 Outer cylinder part 11 Male side valve body part 15 Valve body holding part 19 Inner cylinder part 24A, 24B Female connector 25 Connector main body part 28 Female side valve body part

Claims (8)

A connector assembly comprising a male connector and a female connector connected to each other,
The male connector is
A cylindrical outer wall portion; a bottom portion formed at a base end of the outer wall portion; and a cylindrical inner wall portion protruding from the bottom portion into the outer wall portion, and a distal end side of an inner peripheral surface of the outer wall portion An outer cylinder portion formed with a male side connection portion that engages with the female connector,
A male valve body part that is arranged so that the valve body surface is exposed at the distal end side of the outer wall part, and a slit is formed,
It consists of a cylindrical body that holds the male valve body part, and a valve body holding part in which the inner wall part is inserted,
An inner cylinder part which is formed of a cylindrical body disposed inside the inner wall part and whose outer peripheral surface abuts on the inner peripheral surface of the inner wall part and in which a liquid flow path is formed. And
The female connector is
A connector main body formed of a cylindrical body having a liquid flow path formed therein, and a female side connection portion that engages with the male side connection portion of the male connector on the base end side of the outer peripheral surface thereof; ,
The valve body surface is disposed so that the valve body surface is exposed on the proximal end side of the connector main body part, and a female side valve body part formed with a slit is provided,
When connecting the female connector and the male connector, the male valve body is brought into contact with the female valve body, and from this state, the outer wall is engaged with the outer cylinder. The male connector is fixed to the female connector by moving to the distal end side along the outer peripheral surface of the connector main body portion to the position, and at the same time, the inner wall portion is connected to the male valve body portion and the female side. It is configured to open the slit of the valve body part,
When removing the male connector from the female connector, by moving the outer tube portion to the proximal side along the outer peripheral surface of the connector main body portion, the engagement of the outer wall portion is released, A connector assembly, wherein the male connector is removed from the female connector.   2. The connector assembly according to claim 1, wherein the inner wall portion has an inclined surface tapered toward a tip end side thereof. 3.   3. The connector assembly according to claim 2, wherein the inner wall portion has an opening portion that opens to the inclined surface and communicates with the flow path formed in the inner cylinder portion.   The female side valve body portion includes a plate-like valve main body portion that forms the valve body surface, and a rib that extends from a peripheral edge of the valve main body portion and engages with the connector main body portion. The connector assembly according to any one of claims 1 to 3. The female valve body portion includes a head portion that forms the valve body surface, and a bellows-shaped body portion that is formed in a cylindrical shape continuously to the head portion and elastically deforms in the length direction,
2. The structure according to claim 1, wherein the body portion contracts in the length direction by the pressing of the inner wall portion, and a slit formed in the head portion opens. 4. The connector assembly according to any one of items 3. Consists of a cylindrical body with a liquid flow path formed inside, a connector body part with a female connection part formed on the base end side of the outer peripheral surface, and a valve body surface exposed on the base end side of the connector body part A male connector connected to a female connector including a female valve body portion formed with a slit,
A cylindrical outer wall portion; a bottom portion formed at a base end of the outer wall portion; and a cylindrical inner wall portion protruding from the bottom portion into the outer wall portion, and a distal end side of an inner peripheral surface of the outer wall portion An outer cylinder portion formed with a male side connection portion that engages with the female side connection portion of the female connector,
A male valve body part that is arranged so that the valve body surface is exposed at the distal end side of the outer wall part, and a slit is formed,
It consists of a cylindrical body that holds the male valve body part, and a valve body holding part in which the inner wall part is inserted,
It comprises a cylindrical body disposed inside the inner wall portion, the outer peripheral surface thereof abuts on the inner peripheral surface of the inner wall portion, and an inner cylindrical portion in which a liquid flow path is formed.
When connecting to the female connector, the male side valve body is brought into contact with the female side valve body, and from this state, the outer cylinder is moved to a position where the outer wall is engaged. A structure that is fixed to the female connector by moving to the distal end side along the outer peripheral surface of the main body portion, and at the same time, the inner wall portion opens the slits of the male side valve body portion and the female side valve body portion. And
When removing from the female connector, the outer tube portion is moved to the proximal end side along the outer peripheral surface of the connector main body portion, so that the engagement of the outer wall portion is released and the outer connector is removed from the female connector. A male connector characterized by having a configuration.   The male connector according to claim 6, wherein the inner wall portion has an inclined surface that tapers toward a tip end side thereof.   The male connector according to claim 7, wherein the inner wall portion has an opening portion that opens to the inclined surface and communicates with the flow path formed in the inner cylinder portion.

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