Medical connectors

Abstract

To secure improvement of a safety property with a simple structure even if a housing includes an open part for an operation part.SOLUTION: A medical connector includes: a housing in which a base end part of a connection terminal is arranged in an inner part, and which includes an open part opposite to the base end part; an operation part that is movably arranged in the open part to a contact and separation direction in one open edge part of the open part, and holds or cancels a fitting state with a mating connector by the movement; and an inclusion wall part that is continuously provided to the operation part, and is interposed between a region of the moving operation part and the one open edge part, and the base end part of the connection terminal. The inclusion wall part is interposed between the base end part and the operation part on the base end part side of the one open edge part when the operation part is moved and contacted to the one open edge part side, and is constructed so as to be contacted to a surface on the base end part side when the operation part is moved and separated from the one open edge part.SELECTED DRAWING: Figure 5

Description

Technical Field

[0001] The present invention relates to a medical connector.

Background Art

[0002] Generally, an electrical connector includes a connector receptacle (hereinafter simply referred to as "receptacle") attached to the device side, and a connector plug (hereinafter simply referred to as "plug") attached to a cable and capable of fitting into the receptacle. Also, some electrical connectors have a lock mechanism for maintaining or releasing the fitting state of the receptacle and the plug.

[0003] As an example of an electrical connector with a lock mechanism, there are medical connectors such as an electrocardiogram measurement connector used in an electrocardiograph and a biological signal measurement connector used in a biological information monitor.

[0004] In medical connectors, Patent Document 1 (and the prior art in the specification of the document) discloses various lock mechanisms provided in connectors used in medical electrical devices. Here, various configurations are shown, such as a method of incorporating a mechanical lock mechanism into the plug and a configuration of providing a mechanical lock mechanism in the receptacle.

[0005] Also, as a medical connector, a connector having a structure called a lever method is known, in which the engagement state of the locking claw with the claw on the receptacle side is released by operating the operating portion of the lever.

[0006] In this type of connector, a lever having a locking claw and an operating portion is rotatably attached to the housing of the plug, and by rotating the operating portion about a fulcrum, the locking claw biased in the engagement state direction is displaced in the release direction.

Prior Art Documents

Patent Documents

[0007]

Patent Document 1

[0008] Incidentally, in a structure where a locking or unlocking state is maintained or released by lever operation, the user operates and displaces the operating part exposed from the housing. For this reason, the housing is configured to have an opening large enough to accommodate the movement area of ​​the operating part. As a result, when the operating part moves within the opening, a gap may be formed between the operating part and the opening, making the internal contacts visible from the outside. In this case, if metal approaches the outside of the gap, and the distance to the end of the internal contacts is shorter than predetermined, there is a possibility of discharge. Furthermore, if metal enters the interior through the gap, the possibility of discharge increases even more.

[0009] The present invention has been made in view of the above, and aims to provide a medical connector that has a simple structure even when the housing has an opening for an operating part, and that can improve safety. [Means for solving the problem]

[0010] The medical connector of the present invention is A housing having an opening that faces the base end of a connection terminal located inside, Within the opening, there is an operating unit that is movable toward and toward one edge of the opening, and which maintains or disengages the mating state with the mating connector by moving, An intervening wall portion is provided continuously with the operating portion and is interposed between the region between the moving operating portion and the one-opening edge portion and the base end portion, It has, The base end is the base end of the connection terminal located closest to the single opening edge, The intervening wall portion is interposed between the base end and the operating portion on the base end side of the opening edge when the operating portion moves toward and contacts the opening edge, The corner of the opening at the aforementioned opening edge It is configured to abut against the surface on the base end side. [Effects of the Invention]

[0011] According to the present invention, even if the housing has an opening for the operating section, a simple structure can be used to ensure improved safety. [Brief explanation of the drawing]

[0012] [Figure 1] This is a perspective view showing the configuration of a connector device having a medical connector according to one embodiment of the present invention. [Figure 2] This is a front perspective view of the medical connector. [Figure 3] This is a perspective view showing a medical connector with the second case removed. [Figure 4] This is a rear perspective view of the medical connector with the second case removed. [Figure 5] This is a diagram showing the positional relationship between the opening and the contact in the locked state. [Figure 6] This is a diagram showing the positional relationship between the opening and the contact in the unlocked state. [Modes for carrying out the invention]

[0013] Embodiments of the present invention will be described in detail below with reference to the drawings.

[0014] Figure 1 is a perspective view showing the configuration of a connector device having a medical connector according to one embodiment of the present invention, and Figure 2 is a front perspective view of the medical connector in Figure 1.

[0015] The medical connector device 10 shown in FIG. 1 is a medical connector device such as, for example, an electrocardiogram measurement connector used in an electrocardiograph or a biological signal measurement connector used in a biological information monitor. The medical connector device 10 has a plug (plug connector) 100 as an example of a medical connector and a receptacle (receptacle connector) 200 as a mating connector. The receptacle 200 is a connector attached to the device side. Also, the plug 100 is a connector attached to the cable 20 and capable of fitting into the receptacle 200.

[0016] The plug 100 and the receptacle 200 are used in a male / female combination and have different polarities from each other. The male is the side where the electrical contact, that is, the connection part of the core wire (metal electrode part), is convex, and the female is the side where the electrical contact, that is, the connection part of the core wire, is concave.

[0017] In the example shown in FIG. 1, the connector body 120 of the plug 100 is male (convex), and the connector body 220 of the receptacle 200 is female (concave), but of course, it is not limited to this, and the male and female may be reversed.

[0018] The medical connector device 10 has the number of pins corresponding to the number of core wires. In the example shown in FIGS. 1 and 2, 15 contacts 140 are provided on the connector body 120 (male) of the plug 100, and 15 pin holes 222 are provided on the connector body 220 (female) of the receptacle 200. Of course, the number of pins of the medical connector device 10 is not limited to this.

[0019] Also, the medical connector device 10 adopts a touch-proof structure. That is, the connector bodies 120 and 220 of the plug 100 and the receptacle 200 are each structured such that the metal electrodes are not exposed and the hand does not come into contact with the electrodes. Note that the specific example of the touch-proof structure is not limited to the example shown in FIG. 1, and any well-known structure can be adopted.

[0020] Furthermore, the plug 100 has a locking mechanism for maintaining or releasing the mated state of the receptacle 200.

[0021] In this embodiment, an engaging member is provided on the outer circumference of the connector body 120 of the plug 100, which is slidable along the outer circumference 122 of the connector body 120 in the longitudinal direction (the outer circumference that extends longitudinally in the circumferential direction). This engaging member is configured with a locking claw 132 that engages at an angle perpendicular or nearly perpendicular to the pulling direction of the plug 100.

[0022] Specifically, the locking mechanism has a locking claw 132 that is slidable up and down along the longitudinal outer surface 122 of the connector body 120. The locking claw 132 engages with a locking claw 230 provided on the receptacle 200 side.

[0023] The sliding locking claw 132 on the plug 100 side and the fixed locking claw 230 on the receptacle 200 side are configured to engage with each other at an angle perpendicular or nearly perpendicular to the pulling direction of the plug 100 in the locked position (locked state), and in the unlocked position, the locking claw 132 on the plug 100 side moves downward (in the direction of arrow A in the figure) and the engagement between them is released. The vertical movement of the locking claw 132 on the plug 100 side is restricted between the locked position (upper limit) and the unlocked position (lower limit).

[0024] Furthermore, in order to release the locked state, that is, the engagement (interlocking) state between the locking claw 132 on the plug 100 side and the locking claw 230 on the receptacle 200 side, the plug 100 is provided with an operating part 134 that moves when pressed. The operating part 134 is provided so as to protrude freely from a lever opening 109 formed on one side (bottom surface) of the grip portion 102 at the rear end of the housing 110.

[0025] Next, the configuration of the plug 100, along with the locking mechanism, will be explained in more detail using Figures 3 and 4.

[0026] Figure 3 is a perspective view showing the medical connector plug with the second case 110b removed, and Figure 4 is a rear perspective view of the medical connector with the second case 110b removed. Figure 5 is a diagram showing the positional relationship between the opening and the contacts in the locked state.

[0027] The locking mechanism of plug 100 includes a lever 130, a shaft 116, and a biasing member 170. Plug 100 also includes a housing 110, a connector body 120, a contact 140, and a bush 160. Of the components of plug 100, all parts except the contact (contact pin) 140 and the biasing member 170—specifically, the housing 110, connector body 120, lever 130, and bush 160—are molded from resin. In particular, the housing 110 and lever 130 are made from thermoplastic resins such as polycarbonate ABS, which offer excellent impact resistance, weather resistance, and moldability.

[0028] The housing 110 has a slide groove 104 formed therein for housing the locking claw 132 so that it can slide up and down along the longitudinal outer surface 122 of the connector body 120.

[0029] The housing 110 has a first case 110a and a second case 110b, and by combining the first case 110a and the second case 110b, it is configured as a hollow body with openings at a slide groove 104, a front end (one end) opening 106, a base end (other end) opening 108, and a lever opening 109.

[0030] The connector body 120 is fitted into the tip-side (one-end) opening 106 with its tip protruding. The bush through which the cable 20 is inserted is fitted into the base-side opening 108 so as to lead out the cable 20. The housing 110 has a connector covering portion 105 on the tip-side opening 106 side that covers the rear end of the connector body 120, and a grip portion 102 with a base-side opening 108 is provided continuous with this connector covering portion 105. The grip portion 102 is narrower than the connector covering portion 105 and is shaped to be easy for the user to grip.

[0031] The base end opening 108 and the lever opening 109 are positioned opposite the tip end opening 106, spaced apart from each other.

[0032] The lever opening 109 is L-shaped and located on one side (bottom surface) of the grip portion 102 on the base end side, which is continuous with the connector covering portion 105, in the housing 110. Inside the housing 110, a conductive component (the base end portion 142 of the contact 140) is positioned opposite the lever opening 109. The lever 130 is rotatably mounted in this lever opening 109 around the shaft portion 116.

[0033] The housing 110 has a single opening edge wall portion 11 that extends the creepage distance within the lever opening 109 which is provided in one side wall portion 111, at the edge (single opening edge portion) that is close to the tip side opening 106 where the contact 140 is disposed, in the direction of movement of the operating portion 134.

[0034] The creepage distance is the shortest path between conductors along the surface of the insulator. In this embodiment, the creepage distance is the distance between the base end 142, which is the conductive part of the contact 140 in the connector body 120 located at the tip-side opening 106, and the lever opening 109. The creepage distance can also be said to be the distance from the base end 142 of the contact 140 to the outer surface of the housing 110, that is, the region between the single-opening edge wall portion 11, which is also the single-opening edge portion, and the operating portion 134 (for example, the separated region 110c described later). More specifically, the creepage distance may be the distance between the base end 142 of the contact 140 and the portion located at the shortest possible distance from the base end 142 that could be exposed to the outside. The portion located at the shortest possible distance from the base end 142 that could be exposed to the outside is, for example, a part of the operating portion 134 that forms the region between the single-opening edge wall portion 11 and the operating portion 134. This portion is movable in the direction toward and toward the opening edge of the lever opening 109, and as it moves, it is exposed to the outside of the housing 110 at the position furthest from the base end 142. The one side wall portion 111 is the wall portion adjacent to the lever opening 109 on the tip side of the plug 100. By ensuring creepage distance, a safe distance is ensured at which static electricity will not be generated.

[0035] The single-opening edge wall portion 11, together with the rotating lever 130 (specifically including the operating portion 134 and the intervening wall portion 135), ensures creepage distance from the edge of the tip-side opening 106 to a part of the contact closest to it (the base end portion 142, described later).

[0036] The single-opening edge wall portion 11 has a first wall portion 112 having a surface facing the operating portion 134, and a second wall portion 113 that is arranged to bend and fold back from the rear end of the first wall portion 112. In other words, the single-opening edge wall portion 11 has a single-side wall portion (outer surface portion) 111, a first wall portion 112 that bends from the single-side wall portion 111 and extends toward the back of the opening, and a second wall portion 113 that bends from the end of the first wall portion 112 toward the opposite side from the operating portion and extends in the direction of the bend. The first wall portion 112 is positioned opposite the operating portion 134, and the second wall portion 113 constitutes the lower surface of the opening edge. The joint portion on the outer surface side of the first wall portion 112 and the second wall portion 113 constitutes the corner on the inner side of the opening edge.

[0037] Note that the first wall portion 112 and the second wall portion 113 are formed similarly in both the first case 110a and the second case 110b. Therefore, the first wall portion 112 and the second wall portion 113 of the first case 110a will be explained using Figures 4 and 5, and the explanation of the first wall portion and the second wall portion of the second case 110b will be omitted.

[0038] The first wall portion 112 is formed continuously with one side wall portion 111 adjacent to the lever opening 109 and the operating portion 134 in the direction of movement.

[0039] The first wall portion 112 is provided by bending and extending toward the back side of the lever opening 109 at the base end side of the one side wall portion 111, and constitutes the opening edge on the tip side of the lever opening 109.

[0040] The first wall portion 112 has an opposing surface 112a that faces the edge surface 134a of the operating portion 134, which moves toward and away from the lever 130, i.e., the locking operation.

[0041] The opposing surface 112a extends from the base end portion of one side wall portion 111 toward the back side of the lever opening 109, for example toward the intervening wall portion 135 of the lever 130.

[0042] The second wall portion 113 has an outer surface 113a that is continuous with the far end of the opposing surface 112a and extends in a direction that is bent away from the operating portion 134.

[0043] The outer surface 113a faces the outer surface 135a of the intervening wall portion 135, and is positioned so that the outer surface 135a of the intervening wall portion moves toward and away from it as the lever 130 moves.

[0044] The second wall portion 113, when separated from the first wall portion 112 and the operating portion 134, comes into contact with the outer surface 135a of the intervening wall portion and functions as a screen, preventing the interior from being seen through the gap (separated region 110c) between the first wall portion 112 and the operating portion 134.

[0045] The connector body 120, also known as the housing, is formed in a rectangular shape with multiple mounting holes that open at the tip and base ends.

[0046] The connector body 120 has, in order from the tip side, a connector tip portion 121 that protrudes outward, a flange portion 124 that is positioned to close the tip side opening 106, and a connector base portion 125 that is mainly covered by a connector covering portion 105. Mounting holes are arranged in connection with each of the connector tip portion 121, flange portion 124, and connector base portion 125, and contacts 140 are disposed within each of the mounting holes.

[0047] As shown in Figures 4 and 5, the contacts 140 are conductive, with contacts exposed at the tip end and their respective base ends 142 positioned at the base end. The contacts 140 may also be, for example, rod-shaped terminals, so-called contact pins, to which the tip end connects to the mating contact and the base end connects to the corresponding wire.

[0048] The base end 142 of the contact 140 is connected to the end of the electric wire 24 that branches off from the cable 20. The contact 140 is joined at the contact portion 144 so that the core wires 26 of the electric wire 24 are electrically connected.

[0049] The proximal end portion 142 of the contact 140 is positioned toward the proximal end near the tip-side opening 106.

[0050] The locking claws 132 are arranged in pairs symmetrically on either side of the connector tip 121 of the connector body 120.

[0051] Specifically, the locking pawl 132 is provided on the lever 130 together with the operating part 134.

[0052] The lever 130 has a shaft hole 136 that serves as a pivot axis, a locking arm portion that extends in one direction from the shaft hole 136 and has a locking claw 132 at its tip, an operating portion 134 that extends on the opposite side of the locking arm portion across the shaft hole 136, and an intervening wall portion 135.

[0053] The lever 130 is positioned inside the housing 110, with its shaft hole 136 rotatably engaged with shaft portions 115 and 116 (see Figures 3 and 5) that protrude from the inner surfaces of the first case 110a and the second case 110b.

[0054] The locking arm section has a pair of bifurcated arms that extend toward the tip, sandwiching the connector body 120. The pair of arms of the locking arm section pass through the slide groove 104 and the slit 126 of the flange section 124, respectively, and a pair of locking claws 132 are positioned on both sides of the tip of the connector tip section 121.

[0055] The operating section 134 is formed in an L-shape with a near end portion 1341 and a far end portion 1342. The operating section 134 is operated by pressing the far end portion 1342, which causes the lever 130 itself to rotate around the shaft portions 115 and 116, thereby moving the near end portion 1341 toward and away from one opening edge portion (one opening edge wall portion 11).

[0056] The operating part 134 moves within the lever opening 109 so as to move away from one opening edge (one opening edge wall 11) on the connector tip 121 side, that is, from the edge closer to the contact side in the lever opening 109, thereby releasing the lock state by the locking claw 132. On the other hand, as the operating part 134 moves toward the opening edge (first wall portion 112) on the connector tip portion 121 side, the locking claw 132 locks with the mating connector.

[0057] When the operating part 134 approaches or comes into contact with the first wall portion 112, for example as shown in Figure 5, the locking mechanism enters a locked state, and when it moves away from it enters an unlocked state (see Figure 6).

[0058] Specifically, the lock state is reached when the edge surface 134a of the operating part 134 comes into contact with or comes close to the first wall portion 112.

[0059] As shown in Figures 4 and 5, the intervening wall portion 135 is provided so as to be interposed between the edge surface 134a of the operating portion 134 that moves within the lever opening 109 and the conductive metal component (base end portion 142 of the contact 140) that is positioned closest to this edge surface 134a.

[0060] The intervening wall portion 135 is positioned on a straight line connecting the base end of the edge surface 134a (the far end of the lever opening 109) and the nearest conductive metal component.

[0061] The intervening wall portion 135 closes the separation region 110c between the operating portion 134, which rotates in accordance with the rotation of the lever 130, and the opening edge (first wall portion 112) on the connector tip portion 121 side of the lever opening 109.

[0062] The intervening wall portion 135 is a stepped portion provided adjacent to the operating portion 134 on the side of the locking claw 132. The intervening wall portion 135 protrudes from the edge surface 134a of the operating portion 134 toward the opening edge, and has an outer surface 135a of the intervening wall portion that closes the separation region 110c on the rear side of the operating portion 134. The outer surface 135a of the intervening wall portion is a stepped surface on the lever 130.

[0063] The biasing member 170 biases the locking claw 132 in a direction that engages with the locking claw 230 of the mating connector. Specifically, when locked, the biasing member 170 biases the edge surface 134a of the operating part 134 toward the first wall portion 112, causing the edge surface 134a to come into contact with the first wall portion 112.

[0064] Next, the operation of the connector having the above configuration will be explained. This will be explained using Figure 6, along with Figures 4 and 5. Figure 6 is a diagram showing the main components and the positional relationship between the opening and the contacts in the unlocked state.

[0065] <When locked> When the lever 130 is in the locked position, that is, when the connector is locked with the mating connector, the biasing member 170 causes the edge surface 134a of the near end portion 1341 of the operating portion 134 to move toward the metal component side, that is, toward the base end portion 142 of the contact 140. At this time, the edge surface 134a moves toward the connector tip portion 121 side and comes into contact with the opposing surface 112a of the first wall portion 112, which is the edge of the lever opening 109 toward the connector tip portion 121.

[0066] At this time, the intervening wall portion 135 is spaced apart from the second wall portion 113, and a gap is formed between the outer surface 135a and the outer surface 113a of the intervening wall portion. In addition, a gap of at least the size of the lever opening 109 is created between the opposing surface 112a of the first wall portion 112 and the edge surface 134a of the operating portion 134.

[0067] As a result, the insulation distance D1 from the base end 142 to the outside is the spatial distance from the base end 142 of the contact 140 to the tip of the intervening wall 135 + the spatial distance from the tip of the intervening wall 135 to the corner formed by the outer surface 113a and the opposing surface 112a, or to the opposing surface 112a + the creepage distance from the corner or opposing surface 112a to the outer end of the edge surface 134a, or to the contact point with the opposing surface 112a. Therefore, in the locked state, the inside and outside of the housing are not in communication, and by concealing the inside, it is possible to prevent accidental intrusion of other components, while also ensuring a predetermined insulation distance D1, for example, a specified insulation distance that can prevent the generation of static electricity.

[0068] <Unlocked state> Furthermore, to release the locked state, the far end of the operating part 134 is pressed to rotate the lever 130 and release the locking pawl 132. In the locked state, the edge surface 134a of the operating part 134 moves away from the first wall portion 112. Along with this movement, the intervening wall portion 135 also moves, and the outer surface 135a of the intervening wall portion comes into contact with the outer surface 113a of the second wall portion 113.

[0069] As a result, the movement of the lever 130 in the unlocking direction is restricted, a separation region 110c is formed between the opposing surface 112a and the edge surface 134a, and the outer surface 113a of the second wall portion 113 and the outer surface 135a of the intervening wall portion 135 come into close contact.

[0070] During operation of the lever 130, which displaces the locking claw 132 from the locked position to the unlocked position, the intervening wall portion 135 is positioned on a line connecting the separation region 110c between the lever opening 109 and the operating portion 134, and the base end portion 142 of the internal contact (conductive part). The intervening wall portion 135 provides a screen for the inside of the housing through the separation region 110c.

[0071] Furthermore, in the locked state, the insulation distance D2 from the base end 142 to the outside is the spatial distance from the base end 142 of the contact 140 to the tip of the intervening wall 135 + the creepage distance from the tip to the corner of the contact surface between the outer surface 135a of the intervening wall and the outer surface 113a + the spatial distance from the corner to the outer end of the edge surface 134a.

[0072] As a result, when the lock is released, the inside and outside of the housing are not in contact, and by concealing the inside, it is possible to prevent accidental intrusion of other components, while also ensuring a predetermined insulation distance D2, for example, a specified insulation distance.

[0073] The plug 100 includes a housing 110, an operating part 134 positioned within a lever opening 109 provided in the housing 110, which moves toward or toward one edge of the lever opening 109 to maintain or release the mated state with the receptacle 200, and a contact 140. The base end 142 of the contact 140 is positioned within the housing 110 opposite the lever opening 109, and the tip of the contact 140 is connected to a pin hole (connected terminal) 222 of the receptacle 200.

[0074] Furthermore, the plug 100 is provided in a stepped manner relative to the operating part 134 and has an intervening wall portion 135 that is interposed between the region 110c between the moving operating part 134 and the opening edge and the base end portion 142 of the contact 140. When the operating part 134 moves toward the opening edge, the intervening wall portion 135 is positioned on the far side of the opening edge, facing the second wall portion 113, which is the lower surface of the opening edge, and when the operating part 134 moves away from the opening edge, it comes into contact with the second wall portion 113.

[0075] In this way, regardless of the operation of the lever 130 which locks and unlocks the device, a safe insulating distance can be ensured between the conductive component (the base end 142 of the contact 140) and the operating part 134 within the housing 110.

[0076] Furthermore, in this embodiment, locking claws 132 are provided on both the left and right sides of the plug 100, but the invention is not limited to this, and may be provided on only one side.

[0077] Furthermore, although this embodiment uses a medical connector as an example, this is merely the most preferred example and is not limited thereto. The locking structure in this embodiment is broadly applicable to electrical connectors. [Explanation of Symbols]

[0078] 10 Medical connector devices 11. One opening edge wall section 20 Cables 24 Electric wire 26 core wires 100 Plugs (Medical Connectors) 102 Grip section 104 Slide groove 105 Connector sheath 106 Front opening 108 Proximal opening 109 Lever opening (opening) 110 cabinets 110a Case 1 110b Case 2 110c Separation area 111 One side wall 112 1st wall section 112a Opposite side 113 Second wall section 113a Exterior 115, 116 Shaft section 120 Connector Body 121 Connector tip 122 Longitudinal outer surface 124 Flange section 125 Connector base end 126 slits 130 Lever 132 Rock Claw 134 Operation section 134a Edge surface 135 Intervening wall 135a Intervening wall outer surface 136 shaft hole 140 Contacts (connection terminals) 142 Proximal end 144 Contact area 160 Bush 170 Biasing member 200 Receptacles (Mate Connectors) 220 Connector Body 222 pin holes (connected terminals) 230 Locking claws D1, D2 Insulation distance

Claims

1. A housing having an opening that faces the base end of a connection terminal located inside, Within the opening, there is an operating unit that is movable toward and toward one edge of the opening, and which maintains or disengages the mating state with the mating connector by moving, An intervening wall portion is provided continuously with the operating portion and is interposed between the region between the moving operating portion and the one-opening edge portion and the base end portion, It has, The base end is the base end of the connection terminal located closest to the single opening edge, The intervening wall is configured to interpose between the base end and the operating part on the base end side of the opening edge when the operating part moves toward and contacts the opening edge, and to contact the base end side surface of the corner of the opening on the opening edge when the operating part moves toward and away from the opening edge. Medical connector.

2. The intervening wall portion is provided to protrude from the operating portion along the surface of the single opening edge on the base end side. The medical connector according to claim 1.

3. The corner portion has a plurality of surfaces that extend the creepage distance between the base end and the opening, The medical connector according to claim 1.

4. The aforementioned open edge portion is, The operating section and the first wall section are arranged opposite each other in the direction of movement of the operating section, A second wall portion is arranged, which is bent from the end of the first wall portion on the far side of the opening toward the opposite side from the operating portion, and which has a surface toward the base end, It has, The plurality of surfaces include the surface of the first wall and the surface of the second wall. The medical connector according to claim 3.

5. The aforementioned operating part is the other end of a lever that rotates around a shaft and has a locking claw at one end that engages with a mating connector. A medical connector according to any one of claims 1 to 4.

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