JPH04341273A - Mechanism for connecting outlet for medical use - Google Patents

Abstract

PURPOSE:To allow the removal of connecting plugs by easy operations and to save the labor for opening and closing stop valves, etc., at the time of maintenance and inspection operations, repair, etc., so as to improve convenience by providing operating members at the free ends of a body and constituting these members in such a manner that the members can be energized by springs from a 2nd position toward a 1st position. CONSTITUTION:Plural outlets 2 are provided in a casing 1 to be embedded into the wall, etc., of a hospital and gases for medical use, such as oxygen, air and nitrous oxide, are discretely supplied via pipelines 3 extended from pressure vessels to the respective outlets 2. Any one outlet 2 is connected via the pipeline 3 to a suction source. The connecting plugs 5 are connected freely attachably and detachably in discrete correspondence according to the kinds of the gases to the connecting ports 4 of the respective outlets 2. The connecting plugs 5 are released from the detaining state and can be removed by pressing and operating the annular operating members 14 slightly projecting from a mounting panel 6 to which the respective outlets 2 are mounted.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connection mechanism between an outlet through which medical gases such as oxygen, laughing gas, and air are supplied, and a connecting plug that is detachably connected to the outlet.

0002

2. Description of the Related Art Medical gases such as oxygen, laughing gas, and air are supplied to outlets used in medical facilities such as hospitals, and a connection plug is removably connected to the connection port of the outlet, or A device with a connection plug (hereinafter simply referred to as the device) is directly and detachably connected to the connection port of the outlet, and the medical gas is introduced into a flexible tube extending from the connection plug. A typical prior art is shown in FIG. The panel 111 has an open end 113 of the outlet 112.
protrudes, and a connection plug 114 is inserted into this opening 113.
Alternatively, the device 108 is inserted and engaged to connect. When the connection plug 114 or the device 108 is connected to the opening 113, when removing the connection plug 114 or the device 108 from the opening 113, press the knurled knob 116 protruding from the panel with the arrow mark. The angular displacement is operated by hand as shown at 117. This releases the engagement between the opening 113 and the connecting plug 114 or the instrument 108.

0003

[Problems to be Solved by the Invention] In such prior art, when removing the connection plug or device connected to the connection port, in order to release the locked state of the connection plug or device, It is necessary to manipulate the angular displacement of the knurled knob that protrudes from the panel.
For example, it is not possible to easily remove the connection plug with just one hand. Especially when installing equipment.
This operation requires inserting a hand between the instrument and the panel, which is inconvenient. Furthermore, the medical gas ventilation hole formed in the outlet is provided with a filter for removing fine floating substances such as dust mixed into the medical gas, and for this purpose, the air vent from the connection port is There is a problem in that the pressure loss of the flowing medical gas is large. Furthermore, when the outlet is removed for maintenance, inspection or repair of the outlet, a main valve located at a remote location must be closed to prevent gas from flowing out, which is inconvenient. Moreover, the operating member may be provided to protrude from the panel on which the outlet is provided. If the operating member protrudes from the panel in this manner, there is a risk that the operator's clothes or the like may get caught, so it is desired to improve safety.

[0004] Therefore, an object of the present invention is to make it possible to remove the connection plug with a simple operation, and to improve convenience by reducing the effort required to open and close the main valve during maintenance, inspection, and repair work. It is an object of the present invention to provide a connection mechanism for a medical outlet with improved safety and reduced pressure loss of medical gas as much as possible.

[0005]

[Means for Solving the Problems] The present invention provides a main body having a vent hole through which a medical gas that has been pressure-fed passes, a predetermined first position at the free end of the main body, and a predetermined position located at a position lower than the first position. an operating member displaceable to a second position near the end; a spring biasing the operating member from the second position to the first position; and a state in which the operating member is disposed at the first position. Then, the operating member is elastically protruded into the vent hole, and is pushed and displaced from the first position to the second position against the spring force of the spring, thereby retracting the operating member to the outside of the vent hole. The device is characterized by comprising a locking member and a connection plug formed with a locking groove into which the locking member fits when inserted into a connection port in which the ventilation hole opens at the free end of the main body. This is a connection mechanism for medical outlets.

Further, in the present invention, the main body has a base portion provided with a first valve body that is biased by a spring in a direction to close the ventilation hole;
a mounting member provided with a second valve body having a protrusion that presses the first valve body while being screwed onto the base and being biased by a spring in a direction to close the ventilation hole; A cylindrical body that is prevented from coming out while allowing rotation around an axis, and has a fitting groove in which a locking member is fitted in a direction intersecting the axis, and the vicinity of both ends of the locking member are fitted into the cylinder. , and a guide hole is formed that slopes away from a plane including the axis as it approaches one end in the axial direction, and the first position and the first position are formed with the cylinder body prevented from rotating around the axis. The present invention is characterized in that it includes an annular guide member to which the operating member is fixed, which is displaceably provided in correspondence with two positions.

Further, the present invention provides that the mounting member includes a second
A bottomed cylindrical filter made of a porous material is provided to close the ventilation hole upstream of the valve body in the medical gas supply direction, and the protrusion is integrally formed at the bottom of the filter, and the main body is screwed onto the base and at the same time presses the first valve body to allow medical gas to pass through.

The present invention further provides a mounting panel in which the main body is formed with an insertion hole through which the operating member is inserted, and which is substantially flush with an end surface of the operating member located at the second position facing outside from the insertion hole. It is characterized by being installed behind the

[0009]

According to the first aspect of the invention, an operating member is provided at the free end of the main body, and this operating member is urged by a spring from the second position to the first position. When the operating member in the first position is pressed and moved to the second position, the locking member retreats outward from the ventilation hole, thereby locking the locking member inserted into the connection port. The connection plug can be released from the locked state by being removed from the groove. Furthermore, when the connection plug is inserted into the connection port, the locking member is pushed up outward from the ventilation hole by the connection plug against the elastic force, and is fitted into the locking groove again by the elastic force. It gets stuck and gets locked. In this way, the connection plug can be locked by inserting it into the connection port, and by pressing the operating member, the connection plug or the device can be released from the locked state and easily removed. . In this way, at the free end of the main body,
Since an operating member and a connection port are provided, the operating member can be simultaneously pressed while holding the connection plug inserted into the connection port with one hand, making it easy to attach or remove the connection plug. Can be done.

[0010]According to the second aspect of the invention, by screwing the mounting member to the base on which the first valve body is provided, the first valve body is pressed by the protrusion to open the valve. be able to. The cylindrical body is attached to the attachment member in a state where it is prevented from coming off. This cylindrical body allows rotation of the mounting member around the axis, so when attaching the mounting member to the base, only the mounting member is rotated using, for example, a wrench, without rotating the cylindrical body, and the mounting member is screwed into place. can do. A fitting groove is formed in this cylindrical body, and the locking member, which is displaced by the operation of the operating member, is in a state in which it projects into the ventilation hole along the fitting groove, and in a state in which it is retracted to the outside from the ventilation hole. Displaced to. The vicinity of both ends of this locking member fit into the guide hole of the guide member. The guide hole is formed so as to be inclined in a direction away from a plane including the axis as it approaches one end in the axial direction of the guide member. Therefore, depending on the displacement of the operating member, it can be displaced along the guide hole between a position protruding into the ventilation hole and a position retracted outward. In particular, since the base is provided with the first valve body, even if medical gas is supplied into the vent hole, there is no risk that the gas will be dissipated into the atmosphere through the vent hole. The valve can be opened only after the members are screwed together. This eliminates the need to operate a main valve installed at a remote location, making maintenance, inspection, repair, and other operations easier and smoother.

According to the third aspect of the present invention, the mounting member is provided with a filter made of a porous material upstream of the second valve body in the medical gas supply direction. Since this filter is formed in a cylindrical shape with a bottom, it is possible to increase the contact area with which the medical gas pressure-fed from the upstream side in the supply direction comes into contact with the filter. Pressure loss can be reduced.

According to the fourth aspect of the present invention, the end face of the operating member disposed at the second position and the mounting panel are substantially in the same plane, and the distance between the first and second positions is equal to the distance between the first and second positions. The stop member can be set to such an extent that it can protrude/retract into the vent, thereby eliminating the need to unnecessarily increase the amount of protrusion of the operating member placed in the first position from the panel, and thus preventing the operator from wearing clothes. There is no risk of things getting caught, and operability and safety are improved.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a perspective view showing the overall appearance of an embodiment of the present invention. In a medical facility such as a hospital, a plurality of (four in this example) outlets 2 are provided in a casing 1 buried in a wall, etc., and each outlet 2 is connected to a pressure vessel via a conduit 3. Medical gases such as oxygen, air, laughing gas (nitrous oxide), etc. are supplied separately. Further, any one outlet 2 is connected to a suction source via a conduit 3. A connection plug 5 is detachably connected to the connection port 4 of each outlet 2 in accordance with the type of gas, and an annular operating member 14 slightly protrudes from the mounting panel 6 to which each outlet 2 is attached. By pressing , the connection plug 5 can be released from the locked state and removed. This connection plug includes a flexible tube 7 whose one end is connected to a medical device, etc.
The other end of is connected.

FIG. 2 is an enlarged sectional view taken along section line II--II in FIG. The outlet 2 is basically a supply port 10a through which medical gas is supplied under pressure.
a main body 1 having a ventilation hole 10 communicating with the connection port 4;
1, and a first position P1 predetermined at the free end portion 12 of the main body 11.
and a second position P2 closer to the proximal end portion 13 than the first position P1.
an operating member 14 disposed so as to be displaceable between the operating members 1 and 1;
4 toward the second position P2 from the first position P1; a pair of locking members 16a that are retracted radially outward from the ventilation hole 10 by pressing and displacing the operating member 14 from the first position P1 to the second position P2 against the spring force of the spring 15; , 16b.

The main body 11 includes a base portion 23 provided with a first valve body 22 that is biased by a compression coil spring 21 in a direction that closes the ventilation hole 10, and a generally cylindrical valve body screwed onto the base portion 23. a mounting member 24, a cylindrical body 25 that is prevented from coming off while allowing the mounting member 24 to rotate about its axis, and a cylinder 25 that is secured along its axis while the cylindrical body 25 is prevented from rotating about its axis. It has an annular guide member 26 that is displaceably provided corresponding to the position P1 and the second position P2.

The base 23 is fixed to a support member 28 with bolts 27, and the support member 28 is attached to the mounting panel 6 with mounting bolts 29. A mounting piece 30 protruding inward is fixed in the casing 1 by welding or the like, and an adjustment bolt 32 that passes through a through hole 31 of the support member 28 is screwed into the mounting piece 30. Further, the tip of the adjustment bolt 33 that is screwed into the support member 28 contacts and presses the mounting piece 30, and these bolts 32, 33
Accordingly, the operating member 14 disposed at the first position P1
The amount of protrusion D1 between the end surface 34 of the mounting panel 6 and the surface 35 of the mounting panel 6 can be adjusted. When the operating member 14 is pressed and displaced from the first position P1 to the second position P2, the end surface 34 of the operating member 14 and the surface 35 of the mounting panel 6 are set to be substantially in the same plane. Ru. The protrusion amount D1 of the operating member 14 is selected to be approximately 5 to 7 mm, for example.

FIG. 3 is an exploded perspective view of the base 23. The base portion 23 includes a large diameter portion 41 having a right cylindrical shape, a small diameter portion 42 formed integrally and coaxially with the large diameter portion 41, and a small diameter portion 42.
The valve hole member 44 is screwed onto an internal thread 43 formed in the valve hole member 44. A valve chamber 45 is formed within the large diameter portion 41 and forms a part of the vent hole 10 and accommodates the first valve body 22 . Further, a valve hole 46 communicating with the valve chamber 45 is formed in the valve hole member 44 . The valve hole 46 is formed in a hexagonal shape so that a hexagonal wrench or the like can be engaged therein. In a state in which the valve hole member 44 is screwed into the internal thread 43 and screwed into the small diameter portion 42, the first valve body 22 has a truncated conical shape that expands in diameter facing the valve chamber 45. It is seated on the valve seat 47 and is biased by the compression coil spring 21. Therefore, the first valve body 22 is maintained in a state in which it faces the outside through the valve hole 46 and closes the valve chamber 45 . The small diameter portion 42 is formed with an internal thread 49 into which the cylindrical body 24 is screwed.

FIG. 4 is an exploded perspective view showing the cylinder 25 and its related components. An internal thread 51 and an external thread 52 are formed at one end in the axial direction of the cylinder 25, and a flexible and elastic material such as rubber is used in the storage hole 53 in which the internal thread 51 is formed. An annular valve hole member 56 containing an annular packing 54 made of material and having a valve hole 55
and a cylindrical nut 70 via a filter 65 to be described later.
A second valve body 59 comes into contact with a truncated conical receiving surface 58 of a valve seat 57 which is prevented from coming out by the valve hole member 56 and which protrudes toward the upstream side in the direction in which medical gas is supplied to the valve hole member 56 .

This second valve body 59 is a metal valve body 6.
An annular contact portion 62 is formed from one end in the axial direction of the valve body 60 via a pair of arms 61, and the valve body 60 is provided with an annular sealing member 63 made of an elastic and flexible material such as rubber. is fitted. Such a second valve body 59 is
The compression coil spring 64 is biased in a direction that closes the ventilation hole 10, that is, in the left and right directions in FIG.
contacts the receiving surface 58 of the valve seat 57 elastically. The second valve body 59 and the spring 64 are housed within the filter 65.

The filter 65 is made of a porous material made of sintered metal powder, for example, and includes a right cylindrical cylindrical portion 66, a bottom portion 67 that closes one axial end of the cylindrical portion 66, and a bottom portion 67 that protrudes outward from the bottom portion 67. and the cylindrical portion 66.
and a flange 69 formed at the other end in the axial direction. These cylinder portion 66, bottom portion 67, protrusion 68, and flange 69 are integrally formed. The flange 69 of the filter 65 is pressed by a cylindrical nut 70 screwed onto the internal thread 51 of the cylindrical body 25 to prevent it from coming off. The filter 6 is prevented from coming out by such a nut 70.
The protrusion 68 of No. 5 protrudes outward in the axial direction from the nut 70 and the cylinder body 25, and when the cylinder body 25 is screwed onto the small diameter portion 42 of the base 23, the protrusion 68 touches the first valve body 22. It can be pressed to open the valve. Since the valve can be opened when the outlet 2 is installed in this manner, there is no need to open and close the main valve, etc., and maintenance, inspection, and repair work can be performed efficiently. Note that even if the first valve body 22 is in the open state, the second valve body 5
Since the vent hole 10 is closed by the vent hole 9, there is no possibility that the medical gas will leak out. Further, the outer circumferential surface of the cylindrical portion 66 and the inner circumferential surface of the nut 70 are separated from each other by a gap δ over the entire circumferential direction, and since the filter 65 is formed in a bottomed cylindrical shape, for example, it has a disc shape. It is possible to increase the surface area compared to the case where the medical gas is formed, thereby increasing the passage area for the supplied medical gas and reducing pressure loss.

FIG. 5 is a longitudinal sectional view of the cylinder 25, and FIG. 6 is a side view taken along the section line VI--VI in FIG. The cylindrical body 25 has a central hole 71 that communicates with the storage hole 53, and a hexagonal hole 72 connected to one end of the central hole 71 in the axial direction, into which a hexagonal wrench or the like can be engaged. By inserting the hexagonal wrench through the connection port 4, the cylindrical body 25 can be screwed onto the base 23.

FIG. 7 is an exploded perspective view showing the mounting member 24 and its related components. The mounting member 24 includes a fitting portion 75 into which the cylinder 25 is rotatably housed around its axis, into which the small diameter portion 42 of the base portion 23 is fitted, and a spring receiving portion having a smaller diameter than the fitting portion 75. 76, and a right cylindrical guide portion 77 having a smaller diameter than the spring receiving portion 76. A pair of discrimination protrusions 79 are formed on an end surface 78 perpendicular to the axis of the fitting portion 75 and extend along the axis at intervals corresponding to the type of medical gas. Each protrusion 79 is
It fits into discrimination fitting recesses 80 (see FIG. 2) formed in the base 23 at intervals corresponding to the type of medical gas. When the protrusion 79 does not fit into the recess 80, the base 23
It can be easily recognized that the gas types of the mounting member 24 and the mounting member 24 do not match.

FIG. 8 is a longitudinal cross-sectional view of the mounting member 24, FIG. 9 is a cross-sectional view perpendicular to the axis seen from section line IX--IX in FIG. 8, and FIG. FIG. 7 is an axis-perpendicular cross-sectional view showing a state in which a retaining member 83 is attached. The guide portion 77 has a pair of notches 81, 8 extending in the circumferential direction.
2 is formed. A roughly C-shaped retaining member 83 is fitted into the notches 81, 82. This retaining member 83 has a pair of engaging parts 84 and 85, and each engaging part 84
, 85 are connected by a connecting portion 86. When the retaining member 83 is fitted into each of the notches 81 and 82, each engaging portion 84 and 85 is formed over the entire circumferential direction of the cylindrical body 24 inserted into the mounting member 24. said engaging groove 8
7 and is prevented from coming out. Each end surface 88 , 89 , 90 of the retaining member 83 has the notch 8 .
1 and 82, it is curved so as to have an imaginary circle along the outer peripheral surface of the guide portion 77. As shown in FIG. 11, on the downstream side of the notches 81 and 82 of the guide portion 77 in the supply direction A, a pair of fitting holes 91a and 91b cut out in the circumferential direction include the axis of the guide portion 77. It is formed symmetrically with respect to one plane. These fitting holes 91
a, 91b communicate with the central hole 77a from the outer peripheral surface, into which the pair of locking members 16a, 16b fit, respectively;
Each locking member 16a, 16b has a guide portion 7 at both ends in the longitudinal direction.
Projects outward from the outer peripheral surface of 7.

As shown in FIG. 12, the free end portion 12 on the downstream side of the guide portion 77 in the supply direction A is provided with an annular gas discrimination fitting groove 93 having a diameter corresponding to the type of medical gas.
is formed. This groove 93 has an annular gas discrimination fitting protrusion 94 of the connection plug 5 that corresponds to the same type of medical gas.
(See Figure 1) is fitted. By forming the fitting groove 93 and the fitting protrusion 94 in pairs in correspondence with each type of medical gas in this manner, incorrect attachment of the connection plug can be reliably prevented. The guide member 26 is coaxially attached to the guide portion 77 . Mounting member 2
As shown in FIG. 13, the pair of discrimination protrusions 79 are provided on the other end of the gas cylinder 4 in the axial direction at different positions in the circumferential direction for each type of gas.

FIG. 14 is a perspective view of the guide member 26, FIG. 15 is a front view of the guide member 26 seen from one of the guide grooves 97a and 97b, and FIG. 16 is a perspective view of the guide groove 26 shown in FIG. It is a longitudinal cross-sectional view with the front side omitted. The guide member 26 is formed with pairs of guide holes 96a, 96b; 97a, 97b that are inclined in directions that move away from each other as they move closer to one end in the axial direction with respect to a plane including the axis of the guide member 26. Further, this guide member 26 has a diameter of 180 mm in the circumferential direction.
A pair of elongated holes 98a, 9 extending in the axial direction with a degree interval
8b are formed respectively.

Each guide groove 96a, 96b; 97a, 97b
, both ends of the locking members 16a, 16b fitted into the fitting holes 91a, 91b of the guide portion 77 are fitted and guided. Therefore, as described above, the guide member 2
When the operating member 14 fixed to the position P2 is pressed and placed at the second position P2, the guide member 26 is also displaced along the axial direction toward the base 23, and the respective guide holes 96a, 9
6b; The locking members 16a, 16b in 97a, 97b are guided and displaced in directions away from each other, thereby retreating radially outward from the ventilation hole 10, and locking the connection inserted into the connection port 4. The plug 5 is detached from the locking groove 99. In this way, the locked state of the connection plug 5 is released.

Further, the long holes 98a and 98b are provided with the cylindrical portion 7.
The retaining bolts 101a and 101b screwed into the guide member 26 are fitted, thereby restricting displacement of the guide member 26 along the axial direction and preventing rotation about the axis. The longitudinal lengths of the elongated holes 98a and 98b are set in accordance with the protrusion amount D1.

Referring again to FIG. 7, each locking member 16a,
16b has guide surfaces 102a and 102b that are inclined in directions that move away from each other toward the downstream side in the supply direction A. By forming these guide surfaces 102a and 102b, the locking members 16a and 16b can be displaced in directions away from each other along the truncated conical guide surface 5a of the plug 5 inserted into the connection port 4. Can be done.

In another embodiment of the invention, as shown in FIG. 17, the outlet for supplying air includes:
Discrimination protrusions 105a and 105b may be provided on the end face facing the base 23 of the mounting member 24 at different angles to the left and right with respect to a plane 104 passing through the central axis thereof. On the 24th,
Protrusion 106 at a further different angle as shown in FIG.
Further, as shown in FIG. 19, protrusions 107a and 106b may be provided at different positions in the circumferential direction on the mounting member of the outlet connected to the suction source.
07b may be formed.

[0030]

According to the present invention, since the operating member is provided close to the connection port formed at the free end of the main body, the connection plug or device attached to the connection port can be operated with one hand, for example. The operation member can be pressed while being gripped with the handle, thereby making it easy to remove the connection plug and improving operability.

Further, according to the present invention, the main body is provided with the first valve body, the mounting member screwed onto the main body is provided with the second valve body, and the projection provided on the mounting member allows the first valve body to be provided with the second valve body. Since it is possible to open the valve by pressing the valve body 1,
For example, work such as maintenance, inspection, and repair can be easily performed without opening and closing operations of the main valve, etc., and workability can be improved.

Furthermore, according to the present invention, since the mounting member is provided with a bottomed cylindrical filter, the pressure loss of the medical gas passing through the filter can be reduced as much as possible.

Further, according to the present invention, the mounting panel and the second
Since the end faces of the operating members arranged at the positions are arranged to be substantially in the same plane, it is possible to prevent the worker's clothes from getting caught, thereby improving operability and safety.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the overall appearance of an embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view of the outlet 2. FIG.

FIG. 3 is an exploded perspective view showing the base 23 and related components.

FIG. 4 is an exploded perspective view showing the cylindrical body 25 and related structures.

FIG. 5 is a longitudinal cross-sectional view of the cylindrical body 25. FIG.

6 is a side view of the cylindrical body 25 taken along the section line VI-VI in FIG. 5. FIG.

FIG. 7 is an exploded perspective view showing the mounting member 24 and related components.

8 is a longitudinal sectional view of the mounting member 24. FIG.

9 is a cross-sectional view taken along section line IX-IX in FIG. 8. FIG.

10 is a sectional view showing a state in which the retaining member 83 in FIG. 9 is attached.

11 is a sectional view taken along the section line XI-XI in FIG. 8. FIG.

12 is a side view of the mounting member 24 seen from the right side of FIG. 8. FIG.

13 is a side view of the mounting member 24 seen from the left side of FIG. 8. FIG.

14 is a perspective view of the guide member 26. FIG.

15 is a front view of the guide member 26. FIG.

16 is a cross-sectional view of the guide member 26 shown in FIG. 15, with the front side thereof cut away.

FIG. 17 is a side view of a mounting member 24a according to another embodiment of the present invention.

FIG. 18: Attachment member 24b of still another embodiment of the present invention.
FIG.

FIG. 19: Attachment member 24c of still another embodiment of the present invention.
FIG.

FIG. 20 is a perspective view of the prior art.

[Explanation of symbols]

2 Outlet 4 Connection port 5 Connection plug 6 Mounting panel 7 Operating member 10 Vent hole 11 Main body 12 Free end 13 Base end 16a, 16b Locking member 22 First valve body 23 Base 24 Mounting member 25 Cylindrical body 26 Guide member 59 Second valve body 79 Discrimination protrusion 80 Discrimination recess 96a, 96b; 97a, 97b Guide hole 98a, 9
8b long hole

Claims (4)

[Claims] Claim 1: A main body having a vent hole through which a medical gas that has been pressure-fed passes, a predetermined first position at the free end of the main body, and a second position closer to the proximal end than the first position. a spring that biases the operating member from the second position toward the first position; and a spring that urges the operating member toward the first position; the operating member against the spring force of the spring.
a locking member that is retracted outward from the ventilation hole by pressing and displacing the locking member from the first position to the second position; A connection mechanism for a medical outlet, comprising: a connection plug in which a locking groove into which a locking member is fitted is formed. 2. The main body includes a base portion provided with a first valve body that is spring-biased in a direction to close the ventilation hole, and a protrusion that presses the first valve body while being screwed onto the base portion. and a second valve body provided with a second valve body that is spring-biased in a direction that closes the ventilation hole; and a second valve body that is prevented from coming out while allowing rotation about an axis of the mounting member in a direction that intersects with the axis. A cylindrical body in which a fitting groove into which a locking member is fitted is formed, and the vicinity of both ends of the locking member are fitted into the cylinder, and as the locking member approaches one end in the axial direction, it moves away from a plane containing the axis. A guide hole is formed that is inclined in this direction, and the operating member is fixed so as to be movable in correspondence with the first position and the second position while the cylinder body is prevented from rotating around the axis. 2. The medical outlet connection mechanism according to claim 1, further comprising a ring-shaped guide member. 3. The mounting member is provided with a bottomed cylindrical filter made of a porous material that closes the ventilation hole on the upstream side of the second valve body in the medical gas supply direction; 3. The medical outlet connection according to claim 2, wherein the protrusion is integrally formed on the bottom to screw the main body to the base and at the same time press the first valve body to allow medical gas to pass through. mechanism. 4. The main body has an insertion hole through which the operating member is inserted, and the main body is located on the back side of a mounting panel that is substantially flush with the end surface of the operating member located at the second position facing the outside from the insertion hole. Claim 1 characterized in that it is provided in
Medical outlet connection mechanism as described.