JP2009058032A - Joint device and insert pipe supporting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a joint device improving operability of connection and manufacturability. <P>SOLUTION: A plurality of lock pieces 81 are connected with axial rings 82 and spring rings 83 to form a locking member 42. A lower end side 81a of each lock piece 81 is turned in a direction separating from an intubation support 12 against bias by the spring rings 83 by insertion of the insert pipe support 12 into a chassis 41 and seizes the insert pipe support 12. The lower end side 81a of each lock piece 81 is turned toward an insert pipe support 12 side by a load in a pulling direction of the intubation support 12 and locks the insert pipe support 12. The insert pipe support 12 can be easily and quickly locked and prevented from coming off with the locking member 42 only by inserting the support 12 in the chassis 41 and the operability of connection can be improved. The locking member 42 is easy to be installed as compared with the case where steel balls are used and the manufacturability can be improved. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a joint device for detachably connecting a member to be connected and an intubation support device including the joint device.

  Conventionally, when using a ventilator, such as when performing artificial respiration as a primary lifesaving treatment for a patient who has suffered disturbance of consciousness due to an accident or the like, an intubation tube is connected to the ventilator and the intubation tube is connected to the patient The air is fed into the trachea from the ventilator through this intubation tube.

  Thus, when inserting an intubation tube into a patient's trachea, an elongate intubation support apparatus used for performing an intubation operation safely and easily on a patient who has suffered airway obstruction is known. Such an intubation support apparatus is provided for an apparatus main body provided with a display for monitoring an intubation support tool that is inserted into a patient's trachea and guides an intubation tube through an imaging means inserted in the intubation support tool. And screw connection (for example, refer to Patent Document 1).

  However, in such a configuration, since the intubation support tool is screwed into the apparatus main body and connected, it takes time to connect. In particular, the need for such a screwing operation in a time limit at an emergency medical site places a heavy burden on the practitioner or medical assistant.

Thus, a joint device is known that can easily connect a member to be connected such as an intubation support tool. The coupling device is movable in the central axis direction and the radial direction in a cylindrical main body portion into which the connected member is inserted, and is fitted into a concave portion on the outer peripheral surface of the connected member to lock the connected member. It has a steel ball. In addition, a cylindrical regulating member is fitted to the outside of the main body, and a convex part that regulates the movement of the steel ball in the radial direction and a concave part in which the steel ball can move are part of the regulating member. Are provided adjacent to each other in the axial direction. The regulating member is biased in the axial direction by a biasing means such as a spring, and when the connected member is connected, the steel ball fitted in the recess of the connected member is moved in the radial direction. The convex portion restricts the connected member, and the restricting member is moved in the axial direction, which is the insertion direction of the connected member, against the urging force of the urging means, so that the steel ball is recessed. It is configured so that the connected member can be fitted and the stopper of the connected member is released (see, for example, Patent Document 2).
JP 2007-117114 A (page 8-13, FIG. 1-4) Japanese Patent No. 3785803 (page 4-6, FIG. 1)

  However, in the above-mentioned configuration, since the convex portion of the restricting member faces the steel ball and locks the operation of the steel ball in the normal state, the connected member cannot be inserted into the main body portion in this state. Therefore, the lock is released so that the steel ball can be temporarily retracted into the recess while maintaining the state in which the restricting member is moved in the axial direction against the urging force of the urging means. After inserting the member into the main body, it is necessary to release the holding of the restricting member, that is, to release and lock the connected member with a steel ball, so that a quick and reliable connection is not easy. The connection workability is not good.

  Moreover, when manufacturing a coupling apparatus, there also exists a problem that it is not easy to assemble a steel ball and it is not easy to improve manufacturability.

  An object of this invention is to provide the coupling apparatus which improved the workability | operativity and productivity of connection, and the intubation assistance apparatus provided with the same.

  The joint device according to claim 1 comprises a joint body into which a member to be connected is inserted, and a retaining means provided on the joint body and retaining the member to be connected inserted into the joint body. The retaining means includes a longitudinally formed retaining means main body, a shaft support portion that pivotally supports the proximal end side of the retaining means main body, and a distal end side of the retaining means main body toward the connected member side. And a biasing portion that is biased in a rotating direction and held in a state of protruding from the base end side toward the connected member side, and the retaining means main body includes the joint body of the connected member By inserting into the connected member, the distal end side rotates against the urging force of the urging portion so that the connected member can be locked, and the connected member side is loaded by the load in the pulling direction of the connected member. The member to be connected is prevented from coming off by rotating to the right.

The joint device according to claim 2 is the joint device according to claim 1, wherein a plurality of retaining means main bodies are provided, the shaft support portion connects the base end sides of the plurality of retaining means main bodies to each other, and the biasing portion is The tip end sides of the plurality of retaining means main bodies are connected to each other.

  According to a third aspect of the present invention, in the joint device according to the first or second aspect, the front end side of the retaining means main body of the retaining means is biased by the biasing portion by operating along the insertion direction of the connected member. Against the connected member side, it is rotated in a direction away from the connected member side, and is provided with a removal releasing means for releasing the connected member.

  The joint device according to claim 4 is the joint device according to claim 3, wherein the operation of the retaining release means is restricted in a predetermined restricted state, and the operation of the retaining release means is restricted in a prescribed release state different from the restricted state. It is provided with a restricting means for canceling the restriction.

  According to a fifth aspect of the present invention, in the joint device according to the fourth aspect, the retaining release means includes in part a convex portion protruding in the insertion direction of the connected member, and the restricting means is provided with respect to the retaining release means. A restricting portion that is in contact with the convex portion and restricts the movement of the retaining release means in the insertion direction of the connected member, and the convex portion is engaged with the convex portion. A part of the circumferential direction is provided with a relief recess that enables the removal releasing means to move in the insertion direction of the connected member.

  The intubation support apparatus according to claim 6 is formed in an elongated shape, and connects the intubation support tool to the intubation support tool that guides the intubation tube to a predetermined position and supports the insertion of the intubation tube. 5. The joint device according to any one of 5 is provided.

  According to the joint device of the first aspect, the distal end side of the longitudinal securing means main body of the retaining means biased toward the connected member inserted into the joint main body is inserted by inserting the connected member into the joint main body. Rotate in a direction away from the connected member side against the urging force of the urging portion to lock the connected member, and the connected member side by the load in the pulling direction of the connected member Rotating to hold the connected member so that the connected member can be easily locked and retained by the retaining means simply by inserting the connected member into the joint body, thereby improving the connection workability. In addition to the improvement, for example, the retaining means is easier to assemble than when steel balls or the like are used, and the productivity can be improved.

  According to the joint device according to claim 2, while the proximal end side of the plurality of retaining means main bodies is pivotally supported by the common arcuate shaft supporting portion, the distal ends of the plurality of retaining means main bodies are supported by the common arcuate urging portion. By urging the side, it is not necessary to provide a shaft support part and a biasing part for each retaining means main body, and the number of parts can be reduced by reducing the shaft support part and the biasing part.

  According to the joint device of the third aspect, by operating the disconnection release means along the insertion direction of the connected member, the distal end side of the main body of the stop means of the stop means is resisted against the bias of the biasing portion. By rotating the connecting member away from the connecting member so that the connecting member can be released, the connecting member can be easily removed.

  According to the joint device of claim 4, by restricting the operation of the retaining release means by setting the restricting means to a predetermined restricting state, it is possible to prevent the connected member from being accidentally removed, and the restricting means is in the restricting state. When the member to be connected is removed by releasing the restriction of the operation of the retaining release means by setting it to a predetermined release state different from the above, it can be easily removed.

  According to the joint device of the fifth aspect, the convex portion is formed by rotating the restricting means that is rotatable in the circumferential direction with respect to the retaining release means to a position where the restricting portion faces the convex portion of the retaining release means. Abuts against the restricting portion to restrict the movement of the removal releasing means in the insertion direction of the connected member, and the relief recess turns to a position facing the projection of the prevention release means, so that the protrusion becomes the relief recess. In order to enable the movement of the connection releasing member in the insertion direction of the connected member by fitting, it is possible to easily realize the configuration of the restriction means for restricting the operation of the removal releasing means or releasing this restriction. .

  According to the intubation support device according to claim 6, the intubation support tool that supports the insertion of the intubation tube by guiding the intubation tube to a predetermined position by providing the joint device according to any one of claims 1 to 5. Can be easily connected.

  Hereinafter, an intubation support apparatus according to an embodiment of the present invention will be described with reference to FIGS.

  In FIG. 14, 11 indicates an intubation support device, and this intubation support device 11 is used for intubation of an intubation tube T used when air is sent from a ventilator (not shown) to a patient.

  The intubation support device 11 includes an intubation support tool 12 as a connected member, a device main body 13, and a joint device 14. The intubation support tool 12 can be attached to and detached from the device main body 13 via the joint device 14. It is connected to the.

  The intubation support tool 12 is intubated into a patient's trachea and the like, and is formed in a longitudinal shape by a member such as a transparent synthetic resin having light permeability, for example, and is detachably connected to the joint device 14 It is formed in a substantially straight line from the proximal end side to the vicinity of the intermediate portion in the longitudinal direction, and is bent in the direction of approximately 90 ° from the vicinity of the intermediate portion in the longitudinal direction to the distal end side. And this intubation support tool 12, as shown in FIG.12 and FIG.14, while the groove part 16 which is a guide part for intubation tube T is formed outside from the base end side to the tip side, A scope guide hole 17 that is a guide hole and a through hole 18 are formed inside, and a tongue-shaped protrusion 19 that is continuous with the groove 16 is formed protruding from the tip. In addition, the intubation support tool 12 is integrally formed with a cylindrical insertion tube portion 20 as a connection portion to be inserted into the joint device 14 protruding from the proximal end side.

  For example, the groove 16 is positioned on the right side of the intubation support tool 12 in the use state of the intubation support device 11, and is set to a width dimension and a depth dimension into which the intubation tube T can be inserted. It is formed in an inclined shape so as to gradually approach the central axis direction. Further, on the base end side of the groove portion 16, that is, on the joint device 14 side, drop-off preventing means for supporting the intubation tube T, that is, support protrusions 21 and 22 that are stoppers are provided on both sides of the groove portion 16, respectively. Yes. Further, ribs 23 and 24 are provided in a wall shape on both sides of the groove 16. The groove 16 is set in a shape that naturally guides the distal end side of the intubation tube T to the glottis of the patient while the intubation support tool 12 is installed in the patient's mouth.

  The support protrusions 21 and 22 are arranged so as to alternate along the groove 16. In other words, the support protrusion 21 is located on one side of the proximal end side of the groove part 16, and the support protrusion 22 is located on the other side of the distal end side of the groove part 16 relative to the support protrusion 21. In addition, the support protrusions 21 and 22 are configured such that the distal end side is curved toward the groove 16 side and the outer peripheral surface of the intubation tube T can be locked.

  The ribs 23 and 24 are set so that the distance between the tips is set smaller than the diameter dimension of the intubation tube T so that the intubation tube T inserted into the groove 16 does not fall out of the groove 16. The rib 23 is formed integrally with the protruding portion 19 so as to be integrated therewith.

  The scope guide hole 17 is a hole for inserting a scope S (FIG. 6 or the like) as an observation device. The proximal end side of the intubation support tool 12 is open, and the distal end side is the proximal end portion of the projecting portion 19. In the vicinity of the distal end portion of the groove portion 16, which is in the vicinity, the distal end side of the scope S which is closed by the closing portion 26 and is inserted therein is not exposed to the outside. Further, the scope guide hole 17 is located inside the intubation support tool 12, for example, on the left side when the intubation support device 11 is used, that is, on the side opposite to the groove portion 16. Furthermore, the scope guide hole 17 has a large diameter on the intubation support tool 12 side, which is the base end side, and a small diameter on the distal end side, corresponding to the inclined shape of the groove portion 16.

  Here, the scope S is, for example, flexible, and is provided at a proximal end portion of the scope portion 27 and a scope portion 27 in which an imaging element such as a CCD and an illumination portion such as an LED are formed at the distal end. A protective part 28 for protecting the scope part 27 from bending at an acute angle and a scope attaching part 29 for fixing the scope S to the joint device 14 are integrally provided, and an observation site such as a patient's larynx or glottis is provided. It is configured to be observable through the blocking part 26. The scope may be provided with an image guide or a light guide, or may be provided with an objective lens for visual confirmation in place of the CCD.

  The scope attaching portion 29 is inserted into the joint device 14 and screwed. In addition, the scope attaching portion 29 is provided with a connector portion (not shown) which is a connecting portion such as a flexible substrate having a terminal electrically and mechanically connected to the apparatus main body 13 side on the side opposite to the scope portion 27. It has been.

  The through-hole 18 is a hole for inserting a tube for sucking fluid foreign substances such as saliva and sputum, forceps for removing solid foreign substances, and the like, and a support protrusion 22 of the groove 16. The base end side is opened at the position of the base end side, and the tip end side is opened in the vicinity of the tip end of the groove 16. These tubes and forceps may be fixed to the through hole 18 or detachable. Further, the through hole 18 is located between the groove portion 16 and the scope guide hole 17 inside the intubation support tool 12. Further, the through hole 18 has a smaller cross-sectional area than the groove 16 and the scope guide hole 17. Note that a plurality of through holes 18 may be provided, or a groove shape may be used.

  The projecting portion 19 is, for example, for lifting the patient's epiglottis during intubation work, and is formed in a quadrangular shape in plan view so that the distal end side is thinner than the proximal end side. Further, the corner portion on the distal end side of the protruding portion 19 is curved.

  As shown in FIG. 7, the insertion tube portion 20 has a locked recess as a locked portion locked by the joint device 14 in the state of being inserted into the joint device 14 on the outer peripheral surface on the distal end side. A certain locked groove portion 30 is formed in an annular shape over the entire circumference.

  As shown in FIGS. 13 and 14, the device body 13 includes a longitudinal case 31 such as a waterproof structure, and the joint device 14 is connected to one end side of the case 31 and the other end. On the side, a display 33 for image display is provided. The case 31 is provided with a power switch (not shown) for driving the display 33 and the like.

  In the display 33, an image observed by the scope S inserted into the scope guide hole 17 or various information of the intubation support device 11 is processed by a processing circuit which is a processing device (not shown) housed in the case 31. For example, it is formed in a quadrangular shape in plan view and is pivotally supported with respect to the case 31 so that the angle of the image (video) can be varied.

  The joint device 14 includes a cylindrical chassis 41 as a joint body connected to the device body 13 and a retaining member 42 as a retaining means, as shown in FIGS. A cylindrical lock piece base 43 serving as a retaining means holding body that holds the retaining member 42 and through which the chassis 41 is inserted, and a cylindrical operation ring 44 serving as a retaining release means mounted on the lock piece base 43 And a cylindrical regulating ring 45 as a regulating means mounted on the operation ring 44 and assembled with their axes aligned with each other.

  Hereinafter, the intubation support tool 12 side of the joint device 14 will be described as an upper side, and the apparatus main body 13 side will be described as a lower side.

  The chassis 41 is a portion to which the insertion tube portion 20 of the intubation support tool 12 inserted into the joint device 14 is inserted, and the scope S on the intubation support tool 12 side is inserted and connected to the inside, for example, a synthetic resin or the like A screw groove 51 for screwing the connector portion of the scope S is provided on the inner periphery of the upper end that is one end side, and the intubation support tool 12 is provided on the outer periphery of the end. A positioning groove portion 52 for positioning, which is a guide portion that serves as a guide when mounting, is provided in parallel to the axial direction. Further, in the axial intermediate region of the chassis 41, a holding recess 54 that holds an O-ring 53 that is a seal member that is in liquid-tight (air-tight) contact with the inner peripheral surface of the inserted intubation support tool 12 is provided around the periphery. It is provided in the shape of a groove continuous in the entire direction. Further, a plurality of, for example, three locking portions 55 are provided along the circumferential direction and spaced apart from each other at a substantially equal angle below the holding recess 54 of the chassis 41, which is the other end side in the axial direction. ing. A flange portion 56 that is a joint body protruding portion that protrudes in the radial direction in a flange shape over the entire circumferential direction is provided at the lower end portion that is the other end portion of the chassis 41. Further, a chassis protruding portion 57 that is a connecting portion with the apparatus main body 13 is provided below the flange portion 56 so as to protrude.

  The screw groove 51 is formed from the upper end of the chassis 41 over a predetermined width.

  The positioning groove portion 52 is a guided portion having an upper end on the opening side that is gradually widened upward, and that protrudes in parallel to the axial direction on the inner peripheral surface of the lower side of the intubation support tool 12. This is a guide surface when the positioning convex portion 61 for positioning is fitted. The positioning groove 52 is linearly provided from the upper end of the chassis 41 to the vicinity of the holding recess 54.

  The O-ring 53 is formed in an annular shape from a synthetic resin having flexibility, and the outer peripheral side slightly protrudes from the holding recess 54 to the outside.

  Each locking portion 55 includes a rib-shaped detent projection 64 as a detent formed along the axial direction of the chassis 41, and the circumferential end of the chassis 41 from the upper end of the detent projection 64. And an axial retaining portion 65 formed in a longitudinal shape, and is formed in a substantially L shape in a side view.

  The anti-rotation projection 64 prevents the lock piece base 43 from rotating in the circumferential direction.

  The axial retaining portion 65 is for retaining the lock top base 43 from the chassis 41 by being engaged with a retaining protrusion (not shown) provided to project to the inner peripheral side of the lock top base 43. is there.

  The flange portion 56 is a portion around which the regulating ring 45 is rotatably attached in the circumferential direction, and a seating surface 66 that receives the apparatus main body 13 is provided on the lower end side that is the end portion opposite to the intubation support tool 12. Is formed. Further, on the outer peripheral surface of the flange portion 56, there are a plurality of fixing portions 67 for fixing the chassis 41 to the apparatus main body 13 by screws or the like (not shown), for example, at a plurality of, for example, three locations at substantially equiangular positions. They are spaced apart. Further, at the position between the pair of fixing portions 67, 67, an operation for giving a feeling of operation, that is, a click feeling at each of the rotation start position and the rotation end position when the regulation ring 45 is rotated. A pair of click convex portions 71 and 72 and click concave portions 73 and 74 which are feeling imparting portions are formed adjacent to each other.

  The seat surface 66 is formed in an annular shape in plan view, and is formed in a planar shape around the chassis protruding portion 57. The seat surface 66 is provided with an annular groove 76 around the chassis protrusion 57.

  An O-ring 78 that is a seal member is fitted into the groove 76. The O-ring 78 is connected to the apparatus main body 13 in a liquid-tight (air-tight) manner. In this fitting state, the outer peripheral side protrudes from the groove 76 and is pressed against the upper end side of the case 31 of the apparatus main body 13. Yes.

  In the fixing portion 67, a screw hole 79 to which a screw is attached is formed along a direction parallel to the axial direction of the chassis 41. The fixing portion 67 serves as a rotation restricting portion that restricts the turning angle of the restricting ring 45 when a part of the restricting ring 45 abuts in the circumferential direction when the restricting ring 45 is turned. is there.

  The click convex portions 71 and 72 and the click concave portions 73 and 74 are formed in a substantially arc shape, respectively, and the regulating ring 45 is positioned in a state where a part of the regulating ring 45 is fitted to the click concave portions 73 and 74. When the restricting ring 45 is rotated, a part of the restricting ring 45 moves from the click recesses 73 and 74 to the click recesses 74 and 73, and the click protrusions 71 and 72 are overcome. A click feeling is generated when the click projections 72 and 71 are moved over when the recesses 74 and 73 are fitted.

  The chassis protrusion 57 is inserted into the case 31 of the apparatus body 13.

  As shown in FIGS. 4 and 5, the retaining member 42 includes a plurality of, for example, three long locking pieces 81 as the retaining means main body, and a base end side that is one end side of these locking pieces 81, that is, an upper end. As an urging portion for urging the arc-shaped shaft ring 82 as a pivotal support portion pivotally supported on the side and the lower end side 81a as the distal end side which is the other end side of the lock piece 81 and serves as a locking portion Arc-shaped spring ring 83.

  Each lock piece 81 is formed of a member such as metal, for example, has a first insertion hole 85 through which the shaft ring 82 is inserted at the upper end side, and a second at which the spring ring 83 is inserted at the lower end side. An insertion hole 86 is formed. Each lock piece 81 has a thickness along the circumferential direction of the retaining member 42. Then, as shown in FIG. 8, the lock pieces 81 are locked at the lower end side in the locked groove portion 30 of the intubation support tool 12 in a state where the intubation support tool 12 is inserted into the joint device 14. The intubation support tool 12 can be prevented from being detached from the joint device 14.

  The shaft ring 82 pivotally supports all the lock pieces 81 on the same circumference so as to be rotatable, and is a C-shaped ring body in which a part of the ring is cut out, and has elasticity, for example. It is formed by bending a long member having a circular cross section such as metal.

  The spring ring 83 is a C-shaped ring body having a diameter smaller than that of the shaft ring 82, and is formed by bending a long member having a circular cross section such as an elastic metal. Therefore, the spring ring 83 retains the normal shape, so that each lock piece 81 is inclined with the lower end side 81a of each lock piece 81 inclined toward the central axis direction of the retaining member 42 from the upper end side. The lower end side is urged toward the central axis direction. That is, the spring ring 83 receives the external force in the radial direction or the central axis direction, and is deformed so as to change its radial dimension. It is formed to apply a force to the heel. Further, the spring ring 83 includes deformed portions 88 that are slightly bent and deformed (caulked deformed) so as to be reduced in diameter in the central axis direction on both sides of the opening formed in the annular shape. Each lock piece 81 is prevented from coming off in the circumferential direction of the spring ring 83 by the portion 88.

  As shown in FIGS. 1, 2, and 6 to 9, the lock piece base 43 is formed in a substantially cylindrical shape whose axial dimension is shorter than that of the chassis 41, for example, by synthetic resin or the like. The upper end side of the chassis 41 protrudes from the upper end portion of the lock piece base 43 in a state where the chassis 41 is attached. Further, the lock piece base 43 has a concave groove in which a holding groove 91 that fits and holds the outer peripheral side of the shaft ring 82 of the retaining member 42 and a spring ring 83 can be fitted on the inner peripheral surface on the upper end side in the axial direction. A relief groove portion 92 that is a relief portion is formed, and a plurality of, for example, three, for example, three fitting groove portions 93 to which the lock pieces 81 are fitted parallel to the axial direction are equiangular in the circumferential direction. Are spaced apart from each other. Further, a plurality of anti-rotation recesses 94 as anti-rotation portions into which the anti-rotation protrusions 64 of the respective engaging portions 55 of the chassis 41 are fitted are formed at the lower end of the lock piece base 43.

  The holding groove 91 is formed in an annular shape over the entire circumference, and has a substantially semicircular shape with a cross section having a slightly larger diameter than the cross section of the shaft ring 82.

  The escape groove portion 92 is formed in an annular shape over the entire circumference below the holding groove portion 91. The spring ring is formed so that its cross section is slightly larger than the cross section of the spring ring 83 and is deformed to have a larger radial dimension. 83 is formed so that it can be fitted (retracted) in a state where the lower end side 81a of each lock piece 81 is rotated in the radial direction of the spring ring 83.

  Each fitting groove 93 is notched at the upper end of the lock piece base 43 so as to continue over both the holding groove 91 and the escape groove 92. Further, the fitting groove portions 93 are configured such that the upper ends of the lock pieces 81 are fitted in the normal state shown in FIG. 6 and the lower ends 81a of the lock pieces 81 are the diameters of the spring rings 83. It forms so that it may fit in the state rotated in the direction.

  Each of the rotation stopper recesses 94 is cut out in a longitudinal direction from the lower end of the lock piece base 43 in the circumferential direction, and from one end to the other end in the circumferential direction with respect to the outer peripheral surface of the lock piece base 43. A long curved piece 96, which is a detent piece that gradually curves in the direction of the central axis, is extended.

  Each of the curved piece portions 96 has a free end-shaped distal end side that circumferentially contacts the anti-rotation convex portion 64 of each locking portion 55 to prevent the lock piece base 43 from rotating in the circumferential direction with respect to the chassis 41. ing.

  The operation ring 44 is formed in a substantially cylindrical shape whose axial dimension is longer than that of the lock piece base 43 and shorter than that of the chassis 41, for example, by synthetic resin or the like, and outside the lock piece base 43 in the axial direction. It is slidably attached. Further, the operation ring 44 is provided with a belt-like convex portion 101 which is a belt-like hooking portion protruding in the radial direction on the outer circumferential surface of the central region in the axial direction, and the outer circumferential surface below the belt-like convex portion 101. Further, a sliding fitting portion 102 is formed as a sliding portion which is an operating portion having a diameter smaller than that of the belt-like convex portion 101, and the sliding fitting portion 102 is intubated on the inner peripheral side of the regulating ring 45. The support tool 12 is inserted in a predetermined stroke in the insertion direction of the support tool 12 into the chassis 41, that is, in the axial direction of the operation ring 44. Further, the upper end portion of the operation ring 44 is formed with a folded portion 103 as a retaining means operating portion that is folded back to the inner peripheral side of the operation ring 44. The folded portion 103 and the inner peripheral surface of the operation ring 44 A space between the upper and lower sides of the lock piece base 43 serves as a retraction space portion 104 that is a retraction means retraction portion for retraction. Further, a positioning portion (not shown) for positioning the operation ring 44 in the circumferential direction with respect to the lock piece base 43 is formed on the inner peripheral surface of the operation ring 44 and the folded portion 103 so as to protrude in a rib shape. . In addition, a plurality of convex portions 106 that restrict the sliding of the operation ring 44 in the axial direction are formed at the lower end of the sliding fitting portion 102 that is the lower end portion of the operation ring 44 due to the positional relationship with the restriction ring 45. Has been. Further, a receiving surface portion 107 that receives the intubation support tool 12 is formed in a step shape on the upper portion of the folded portion 103 that is the upper end portion of the operation ring 44.

  On the outer peripheral surface of the belt-like convex portion 101, although not shown, the operation direction indicating portion such as an arrow indicating the operation direction of the operation ring 44 and the position of the positioning groove portion 52 of the chassis 41 protruding above the operation ring 44 are provided. The fitting position instruction | indication part shown is formed. The belt-like convex portion 101 is a portion that is caught by the user when the operation ring 44 is slid in the axial direction.

  The sliding fitting portion 102 is formed thinner than the belt-like convex portion 101. In addition, a plurality of claw portions (not shown) are provided on the inner peripheral surface of the sliding fitting portion 102 so as to protrude in the central axis direction, and these claw portions are the lower ends of the lock piece base 43 in the normal state shown in FIG. By engaging the part, the operation ring 44 is prevented from coming off upward in the axial direction.

  The folded portion 103 has a lower end opposed to the inner side surface of each lock piece 81 of the retaining member 42 in a state where the operation ring 44 is attached, and each lock piece 81 is caused by sliding the operation ring 44 downward in the axial direction. The lower end side 81 a of each lock piece 81 is rotated (retracted) in the direction of expanding the diameter of the spring ring 83.

  The retreat space 104 is a space that covers the upper end side of the lock piece base 43 holding each lock piece 81, and the upper end portion of the lock piece base 43 can be moved vertically in the sliding stroke of the operation ring 44. The vertical dimension is set so that

  The positioning portion is formed along the axial direction of the operation ring 44, and is fitted to the positioning fitting notch portion 108 which is a guide recess formed between the fitting groove portions 93 and 93 at the upper end portion of the lock piece base 43. And a guide guide for guiding the sliding direction of the operation ring 44 together with the positioning fitting notch 108 and a guide for mounting the operation ring 44. It constitutes a sliding guide part, that is, a retaining release means guide part.

  Each convex portion 106 is formed so as to protrude below the lower end of the sliding fitting portion 102 in the axial direction of the operation ring 44, that is, along the insertion direction of the intubation support tool 12. Further, the convex portions 106 and 106 are formed at positions facing each other with respect to the central axis of the operation ring 44, that is, at positions spaced apart from each other at substantially equal angles in the circumferential direction of the operation ring 44. Further, these convex portions 106 are formed in a longitudinal shape in the circumferential direction so that the distance between both end portions forms a predetermined angle, for example, a central angle of about 60 ° with respect to the central axis of the operation ring 44, for example.

  The receiving surface portion 107 is an intubation support tool seat surface 109 formed in an annular shape around the proximal end portion of the insertion tube portion 20 of the intubation support device 12 in a state where the intubation support device 12 is inserted and connected to the joint device 14. It is a plane part which contacts.

  As shown in FIGS. 1, 2, 10, and 11, the regulating ring 45 includes a cylindrical outer peripheral side surface 111 that is an operation portion that forms an outline of the regulating ring 45 and is picked by a user, It has ring protrusions 112 and 113 which are restricting means protrusions protruding from the inner peripheral surface on the lower end side of the outer peripheral side surface 111, and are formed of, for example, synthetic resin.

  The outer peripheral side surface portion 111 is formed to have a smaller outer diameter than the upper end side of the apparatus main body 13, for example. In addition, a plurality of outer peripheral grooves 115 that are hooking groove portions as concave and convex portions are formed in a straight line from the upper end to the lower end in parallel to the axial direction on the entire outer peripheral side surface portion 111, and these outer peripheral grooves 115 are formed by the user. The restriction ring 45 can be easily rotated in the circumferential direction by being caught by the finger. Further, the outer peripheral side surface portion 111 is formed with a mark portion which is a rotation position display portion (not shown) that allows the rotation position of the restriction ring 45 to be visually observed.

  As shown in FIG. 3, the ring protruding portions 112 and 113 protrude to a predetermined width along the inner peripheral surface of the outer peripheral side surface portion 111 and are formed at positions facing each other with respect to the central axis of the regulating ring 45. Yes. That is, the ring protrusions 112 and 113 are formed in an arc shape in plan view. Further, the ring protrusions 112 and 113 are formed at the lower end of the sliding fitting portion 102 of the operation ring 44, that is, at positions facing the respective convex portions 106, and with respect to the central axis of the regulating ring 45, The length between both ends is a predetermined angle in the circumferential direction, for example, a central angle of 120 °. The projecting portion 106 of the operating ring 44 comes into contact with the ring projecting portions 112 and 113, and the regulating ring convexity is a regulating means side projecting portion as a regulating portion that regulates the sliding of the operating ring 44 in the axial direction. Part 116 and a regulation ring concave part 117 which is a concave part on the regulation means side as a concave part that allows the operation ring 44 to slide in the axial direction by fitting the convex part 106, respectively, are formed continuously in the circumferential direction. Has been. Further, on the inner peripheral side of the restricting ring convex portion 116 of the ring protruding portion 112 and on the inner peripheral side of the restricting ring concave portion 117 of the ring protruding portion 113, a rotation guide portion 121 that guides the rotation of the restricting ring 45 is provided. Each protrudes. Further, a stopper portion as a rotation restricting portion that abuts the fixing portion 67 of the chassis 41 and restricts the rotation angle of the restricting ring 45 at the end of the restricting ring recess 117 side, which is one end portion of the ring protruding portion 112. 123 is formed to protrude in the central axis direction. An elongated click piece 125, which is an operational feeling imparting piece, extends toward the ring protrusion 112 at the end of the ring protrusion 113, which is one end of the ring protrusion 113. Yes.

  The regulating ring convex portion 116 and the regulating ring concave portion 117 are substantially equiangular with each other in the circumferential direction, which is the longitudinal direction of the ring protruding portions 112 and 113, that is, in this embodiment, the distance between both ends is the central axis of the regulating ring 45. The control ring 45 is formed in a region having a central angle of about 60 °, and is configured such that one of the convex portions 106 of the operation ring 44 is opposed to the control ring 44 by rotating the restriction ring 45 to a predetermined rotation position. Yes.

  Each regulation ring convex portion 116 is set to have a vertical dimension that contacts the lower end of the convex portion 106 of the operation ring 44 in the normal state shown in FIG.

  Furthermore, each regulation ring recess 117 is set to have a vertical dimension such that the distance from the lower end of the projection 106 of the operation ring 44 is equal to or greater than the sliding stroke of the operation ring 44 in the normal state shown in FIG. .

  Therefore, the sliding stroke of the operation ring 44 is set by, for example, a gap between the upper end of the lock piece base 43 and the retracting space 104 of the operation ring 44 or a gap between each convex part 106 and each regulating ring concave part 117. Has been.

  Each rotation guide portion 121 is curved and formed in an arc shape along the shape of the inner peripheral side of the ring protruding portions 112 and 113 so as to be in sliding contact with the outer peripheral surface of the flange portion 56 between the fixing portions 67 and 67 of the chassis 41. ing.

  The click piece 125 protrudes in a free end shape from the base end side, which is the ring protrusion 113 side, and is formed in an arc shape substantially along the shape of the inner peripheral side of the ring protrusion 113. It is located in one of the ring space portions 127 and 127 which is a gap portion between the end portions of the portions 112 and 113. Further, a click fitting portion 128 that is a fitting portion that can be fitted into the click recesses 73 and 74 of the chassis 41 is integrally formed at the distal end portion of the click piece portion 125 so as to protrude in the central axis direction.

  Then, both end portions of each rotation guide portion 121 which are both end portions of the ring space portion 127 and the base end portion of the click piece portion 125 are contacted as rotation restricting portions protruding toward the central axis side of the restricting ring 45. The contact surface portions 129a, 129b, 129c, 129d, and 129e are formed, and the rotation angle of the regulating ring 45 is achieved by the contact of the fixed portion 67 of the chassis 41 with the contact surface portions 129a to 129e and the stopper portion 123. A restricting contact portion for restricting the pressure is configured. Therefore, the regulating ring 45 is shown in FIG. 10 in which the click fitting portion 128 is fitted into the click recessed portion 73 and the contact surface portions 129a, 129c, and 129e are brought into contact with the fixing portions 67, respectively. A predetermined angle between the restriction position and the release position shown in FIG. 11 in which the click fitting portion 128 is fitted in the click recess 74 and the contact surface portions 129b and 129d and the stopper portion 123 are in contact with the fixing portions 67, In the present embodiment, the rotation is set in a range of about 45 °.

  Next, the operation of the above embodiment will be described.

  When the intubation support device 11 is assembled, a screw is inserted into each screw hole 79 of the chassis 41 and screwed to the device main body 13 by these screws, and the joint device 14 is assembled in this state. At this time, the O-ring 78 is brought into pressure contact with the apparatus main body 13, whereby the apparatus main body 13 and the chassis 41 (joint device 14) are connected in a liquid-tight (air-tight) manner. The chassis 41 is screwed to the apparatus main body 13, but may be bonded and fixed, for example.

  When the coupling device 14 is assembled, a C-shaped shaft ring 82 in a plan view is inserted into the first insertion hole 85 of each lock piece 81, and a C-shaped spring ring 83 in a plan view is inserted into the second insertion hole 86. Is inserted, the end of the spring ring 83 is deformed in the central axis direction to form the retaining member 42, and then the retaining member 42 is attached to the lock piece base 43.

  At this time, the shaft ring 82 of the retaining member 42 is fitted into the holding groove portion 91 while the lock pieces 81 are fitted into the fitting groove portions 93 of the lock piece base 43, respectively.

  Further, with respect to the lock piece base 43 to which the retaining member 42 is attached, the operation ring 44 is attached in the axial direction with the positioning portion aligned with the positioning fitting notch portion 108 of the lock piece base 43. The operation ring 44 fitted with 43 is inserted into the chassis 41 with the restriction ring 45 attached to the periphery, and the rotation prevention convex portions 64 of the respective locking portions 55 of the chassis 41 are inserted into the respective rotation prevention concave portions 94 of the lock piece base 43. To complete the joint device 14.

  In this state, the retaining member 42 is inclined such that the lower end side 81a of each lock piece 81 protrudes toward the central axis side from the inner peripheral surface of the operation ring 44 (neutral position).

  Further, the intubation support tool 12 is connected to the upper end side of the joint device 14.

  That is, as shown in FIG. 7, with the positioning convex portion 61 of the intubation support tool 12 aligned with the positioning groove portion 52 of the chassis 41 of the coupling device 14 with respect to the coupling device 14 in the normal state shown in FIG. When the insertion tube portion 20 of the intubation support tool 12 is inserted into the chassis 41, the outer peripheral surface of the insertion tube portion 20 is fixed to each of the retaining members 42 held by the lock piece base 43 fitted to the inner periphery of the operation ring 44. Abutting on the lower end side 81a of the lock piece 81, the lower end side 81a of the lock piece 81 is rotated in the direction of expanding the diameter of the spring ring 83 so as to be pushed against the bias of the spring ring 83. In other words, by inserting the insertion tube portion 20 of the intubation support tool 12, each lock piece 81 rotates in the direction of expanding the passage for mounting the intubation support tool 12.

  When the insertion cylinder part 20 is inserted to a predetermined position while being guided by the shape of the positioning convex part 61 and the positioning groove part 52, the lower end side 81a of each lock piece 81 is engaged with the locked groove part 30 of the insertion cylinder part 20. The lower end side 81a of each lock piece 81 is rotated in the direction of reducing the diameter so that the spring ring 83 returns to the normal state by the biasing of the spring ring 83, that is, toward the central axis side. Then, as shown in FIG. 8, these lock pieces 81 engage with the locked groove portions 30 to prevent the intubation support tool 12 from coming off from the joint device 14, thereby completing the intubation support device 11. At this time, the O-ring 53 is pressed against the outer peripheral surface of the insertion tube portion 20 of the intubation support tool 12, and the intubation support tool 12 and the joint device 14 are connected in a liquid-tight (air-tight) manner.

  In this state, even if a force is applied to the intubation support tool 12 in the direction opposite to the insertion direction, in other words, in the pulling direction to forcefully remove the intubation support tool 12, the lower part of the locked groove 30 As a result of the contact with the lower end side 81 a of each lock piece 81, the lower end side 81 a of the lock piece 81 rotates in the central axis direction, and each lock piece 81 bites into the locked groove 30. In other words, the force for forcibly pulling out the intubation support tool 12 becomes a self-lock that acts as a force for rotating each lock piece 81 in the direction of narrowing the passage for mounting the intubation support tool 12.

  Then, the user rotates the restriction ring 45 to the restriction position shown in FIG. 10 so that each convex portion 106 of the operation ring 44 is opposed to each restriction ring convex portion 116 of the restriction ring 45. The intubation support device 11 is used in a state where the sliding of the ring 44 in the axial direction is locked and the intubation support tool 12 is prevented from falling off the joint device 14 due to a malfunction (erroneous operation) of the operation ring 44.

  At this time, in the coupling device 14, the click fitting portion 128 shown in FIG. 3 rotates toward the click recess 73 side with the rotation of the restriction ring 45, and the distal end side of the free-end click piece portion 125 is bent. After overcoming the click projection 71, the click recess 73 is fitted into the click recess 73, and a click feeling is generated, and each rotation guide portion 121 abuts against the side surface of the fixed portion 67 to prevent the regulation ring 45 from rotating. .

  When using the intubation support device 11, first, the scope S is inserted into the scope guide hole 17 of the intubation support device 12, and each part such as the display 33 is driven by operating the switch of the device body 13. With the intubation tube T fitted, the distal end is inserted toward the patient's trachea along the tongue base of the patient.

  Then, while visually confirming the image displayed on the display 33 through the scope S through the occlusion 26, the protrusion 19 lifts the patient's epiglottis to the tongue base side, and the predetermined portion on the distal end side of the intubation support device 12 is moved to the patient. Secure the airway by touching the tongue base.

  Next, with the airway secured, the intubation tube T is further pushed in to reach the trachea while confirming the image displayed on the display 33.

  And in the state which inserted the intubation tube T into the trachea, this intubation tube T is made to detach | leave from the groove part 16, and the intubation assistance tool 12 is extracted from a patient's mouth.

  Further, when removing the intubation support tool 12 from the intubation support device 11, for example, when replacing the intubation support tool 12, first, the restriction ring 45 is rotated to the release position shown in FIG. By causing each regulating ring recess 117 to face each projection 106 of the operation ring 44, the lock of the sliding of the operation ring 44 in the axial direction is released.

  At this time, in the joint device 14, when the click fitting portion 128 shown in FIG. 3 rotates from the click recess 73 toward the click recess 74 with the rotation of the restriction ring 45, the free end click piece When the distal end side of the portion 125 bends and climbs over the click convex portion 71, a click feeling is generated, and a click fitting portion 128 that slides on the outer peripheral surface of the flange portion 56 between the fixed portions 67 of the chassis 41 has a click piece portion. After the top end of 125 bends again and climbs over the click projection 72, it fits into the click recess 74, so that a click feeling is generated again, and the stopper portion 123 and the contact surface portions 129b and 129d are formed on the side surfaces of the fixing portions 67. The regulating ring 45 is prevented from rotating by contacting each other.

  In this state, when the user grasps the belt-like convex portion 101 of the operation ring 44 and applies an external force to the operation ring 44 in the axially lower side and pushes the operation ring 44 toward the regulating ring 45, As shown in FIG. 9, the folding portion 103 of the operation ring 44 moves the lower end side 81 a of each lock piece 81 away from the insertion tube portion 20 of the intubation support tool 12, that is, to bias the spring ring 83. Accordingly, the spring ring 83 is rotated in the direction of expanding the diameter, and each lock piece 81 is retracted to the outside of the locked groove portion 30 until the spring ring 83 is fitted to the escape groove portion 92. The engagement with the locking groove 30, that is, the retaining prevention of the intubation support tool 12 is released.

  The intubation support tool 12 is removed from the joint device 14 by the user pulling out the intubation support tool 12 in the axial direction while holding this release.

  When the operation ring 44 is released in a state where the intubation support tool 12 is detached, the lower end side 81a of each lock piece 81 is rotated in the direction of the central axis due to the urging force caused by the return deformation of the diameter of the spring ring 83. The retaining member 42 is in the normal state shown in FIG.

  As described above, according to the embodiment, the lower end side 81a of each lock piece 81 urged toward the intubation support tool 12 inserted into the chassis 41 is inserted into the chassis 41 of the intubation support tool 12. Accordingly, the intubation support tool 12 is turned in a direction away from the intubation support tool 12 against the bias of the spring ring 83 to lock the intubation support tool 12, and the intubation support tool 12 is loaded by the load in the pulling direction. By rotating to the support tool 12 side and retaining the intubation support tool 12, the intubation support tool 12 can be easily and quickly locked by the retaining member 42 simply by inserting the intubation support tool 12 into the chassis 41. In addition, it is possible to prevent disconnection and improve the workability of connection.

  That is, for example, compared to the conventional configuration using a steel ball, when the intubation support tool 12 is mounted, it is not necessary to maintain the state where the retaining means of the intubation support tool is manually released, and the intubation support tool 12 is touched with one touch. Can be easily connected.

  In addition, emergency medical care is achieved by adopting a highly reliable configuration in which the intubation support tool 12 can be easily and quickly connected to anyone and the intubation support tool 12 is automatically prevented from coming off. In the intubation support device 11 used as a device, it is possible to reduce the burden on the practitioner and medical assistant who assemble and use the intubation support device 11 at the site.

  Further, the retaining member 42 is configured by each lock piece 81, a shaft ring 82 that pivotally supports the lock piece 81, and a spring ring 83 that biases each lock piece 81, so that, for example, steel The retaining member 42 is easier to assemble than when using a sphere, etc., making it possible to improve manufacturability and downsizing, while not requiring dimensional accuracy more than necessary and simplifying the structure. Therefore, it is possible to reduce the cost and the number of parts.

  In addition, all the lock pieces 81 are pivotally supported by one common shaft ring 82, and all the lock pieces 81 are biased by one common spring ring 83, so that each lock piece 81 has a shaft support portion and There is no need to provide an urging portion, and the cost can be reduced, the number of parts can be reduced, and the size can be reduced by reducing the number of the shaft support portion and the urging portion.

  Further, by supporting the intubation support tool 12 at three points in the circumferential direction substantially evenly by the three lock pieces 81, the load in the direction of pulling out the intubation support tool 12 can be received by each lock piece 81 substantially evenly. It is possible to reliably prevent the intubation support tool 12 from coming off.

  Further, after the spring ring 83 is inserted into each lock piece 81, the end of the spring ring 83 is deformed in the central axis direction to form a deformed portion 88, whereby the lock piece 81 can be easily prevented from coming off.

  Then, the operating ring 44 is slid along the axial direction that is the insertion direction of the intubation support tool 12, so that the lower end side 81a of each lock piece 81 of the retaining member 42 is moved by the spring ring 83 by the folded portion 103 of the operating ring 44. The intubation support tool 12 can be easily removed by rotating it in a direction away from the intubation support tool 12 against the urging force so that the retaining support of the intubation support tool 12 can be released.

  Furthermore, by restricting the sliding of the operation ring 44 by rotating the restriction ring 45 to the restriction position shown in FIG. 10, it is possible to prevent the intubation support tool 12 from being accidentally removed, and the restriction ring 45 is brought into the restriction state. When removing the intubation support tool 12 by releasing the restriction of the sliding of the operation ring 44 by turning to a different release position shown in FIG. 11, it can be easily removed.

  Then, the control ring 45 that can be rotated in the circumferential direction with respect to the operation ring 44 is rotated to a control position in which each control ring convex part 116 opposes each convex part 106 of the operation ring 44. 106 abuts on each regulating ring convex portion 116 to regulate the sliding of the operation ring 44, and each regulating ring concave portion 117 is rotated to a position facing each convex portion 106 of the operating ring 44, whereby each convex portion Since 106 is fitted in the restriction ring recess 117 to enable the operation ring 44 to slide, the structure of the restriction ring 45 that restricts the sliding of the operation ring 44 and releases this restriction is easy. Can be realized.

  In addition, since the intubation support tool 12 can be easily and quickly connected by providing the joint device 14, not only can the reliability as the intubation support device 11 used in the emergency medical field be improved, but also the intubation can be performed by operating the operation ring 44. Since the support device 12 can be easily removed, the intubation support device 12 can be replaced with a new one each time it is used, secondary infections caused by bacteria in the patient can be prevented, safety can be improved, and the regulation ring 45 Since the operation of the operation ring 44 can be regulated by operation, it is possible to prevent the intubation support tool 12 from being accidentally dropped during use or the like, so that the reliability as the intubation support device 11 can be further improved.

  Further, by providing the click fitting portion 128 of the restriction ring 45, the click convex portions 71 and 72 and the click concave portions 73 and 74 of the chassis 41, the restriction ring 45 is disposed at the restriction position shown in FIG. 10 and the release shown in FIG. Since a click feeling is generated when the position is rotated from one of the positions to the other, the click feeling allows the user to easily recognize the rotation position of the restriction ring 45 and obtain a good operation feeling. At the same time, the click fitting portion 128 is fitted in each click recess 73, 74, whereby the restriction ring 45 can be temporarily held at the restriction position shown in FIG. 10 and the release position shown in FIG. It is also possible to prevent the regulation ring 45 from being inadvertently rotated during use of the device 11 and the regulation of sliding of the operation ring 44 is erroneously released and the intubation support tool 12 is dropped.

  Then, by providing a mark portion on the outer peripheral portion of the outer peripheral side surface portion 111 of the regulating ring 45, it is possible to easily visually check which rotation position the regulating ring 45 is in.

  In the above-described embodiment, the number of lock pieces is not limited to three, and the fitting groove 93 and the like corresponding to the lock piece 81 may be appropriately set according to the number of the lock pieces 81 and the like.

  Also, depending on the mounting angle (tilt) of the lock piece 81 to the retaining member 42, the shape of the lock piece 81, etc., it is possible to obtain a connection sound when inserting the connected member and a click feeling when operating the retaining release means. It can also be.

  Furthermore, the locked groove portion 30 is not limited to the concave portion provided on the outer peripheral surface of the insertion tube portion 20, and may be a convex portion, or may be provided on the inner peripheral surface of the insertion tube portion 20, or may not be provided. It is good. When provided on the inner peripheral surface side of the insertion cylinder part 20, the lower end side 81a of the lock piece 81 is made to be more than the upper end side that is the base end side, for example, the spring ring 83 is formed larger in diameter than the shaft ring 82. It can respond by making it outward.

  The retaining release means is not limited to the configuration of the operation ring 44, and may be omitted as long as the member to be connected is not removed from the joint device 14.

  Further, the restricting means is not limited to the configuration of the restricting ring 45, and may not be provided when it is not necessary to restrict the operation of the retaining release means.

  Furthermore, the joint device 14 can be used not only for the intubation support device 11 but also for connecting an arbitrary connected member such as a liquid or gas pipe.

It is a disassembled perspective view which shows the coupling apparatus of one embodiment of this invention. It is a perspective view which shows a joint apparatus same as the above. It is a bottom view which shows a joint apparatus same as the above. It is a top view which shows the securing means of a joint apparatus same as the above. It is sectional drawing which expands and shows a locking means same as the above. It is a longitudinal cross-sectional view which shows the normal state of a joint apparatus same as the above. It is a longitudinal cross-sectional view which shows the state which inserted the intubation assistance tool in the joint apparatus same as the above. It is a longitudinal cross-sectional view which shows the state hold | maintained retaining the intubation assistance tool inserted in the joint apparatus same as the above. It is a longitudinal cross-sectional view which shows the state which operated the extraction-release cancellation | release means of the joint apparatus same as the above, and extracted the intubation assistance tool. It is a perspective view which partially cuts out the state which rotated the control means of the joint apparatus same as the above to the control position. It is a perspective view which partially cuts out the state which rotated the control means same as the above to the cancellation | release position. It is a perspective view which shows a part of intubation assistance tool of the intubation assistance apparatus provided with the joint apparatus same as the above. It is a perspective view which shows the apparatus main body of an intubation assistance apparatus same as the above. It is a perspective view which shows an intubation assistance apparatus same as the above.

Explanation of symbols

11 Intubation support device
12 Intubation support tool as connected member
14 Fitting device
41 Chassis as fitting body
42 Retaining member as retaining means
44 Operation ring as retaining release means
45 Regulatory ring as a regulatory tool
81 Lock piece as retaining means body
81a Lower end, which is the front end
82 Shaft ring as pivot support
83 Spring ring as biasing part
106 Convex
116 Restriction ring convex part as restriction part
117 Restriction ring recess as relief recess T Intubation tube

Claims (6)

A joint body into which the connected member is inserted;
A retaining means provided on the joint body and retaining the connected member inserted into the joint body;
The retaining means includes
A retaining means body formed in a longitudinal shape;
A shaft support portion that pivotally supports the proximal end side of the retaining means body;
An urging portion that urges the distal end side of the retaining means main body in a direction to rotate toward the connected member side and holds it in a state of protruding from the proximal end side toward the connected member side;
The retaining means main body is capable of locking the connected member by rotating the tip side against the urging of the urging portion by inserting the connected member into the joint main body. A joint device characterized in that the connected member is pivoted toward the connected member side by a load in the pulling direction of the connecting member to prevent the connected member from coming off. A plurality of retaining means main bodies are provided,
The shaft support portion connects the base end sides of the plurality of retaining means main bodies to each other,
The joint device according to claim 1, wherein the urging portion connects the distal ends of the plurality of retaining means main bodies to each other. By operating along the insertion direction of the connected member, the distal end side of the retaining means main body of the retaining means is rotated in a direction away from the connected member side against the urging force of the urging portion. The joint device according to claim 1, further comprising: a removal releasing means that enables the connection member to be released. The control device according to claim 3, further comprising: a restricting unit that restricts the operation of the removal releasing means in a predetermined restricted state and releases the restriction of the operation of the removal releasing means in a predetermined release state different from the restricted state. Fitting device. The retaining release means includes in part a convex portion protruding in the insertion direction of the connected member,
The restricting means is provided so as to be rotatable in the circumferential direction with respect to the retaining release means, and restricts the operation of the retaining release means in the insertion direction of the connected member by contacting the convex portion. And a relief recess that allows the projection to fit in and to allow the removal releasing means to move in the insertion direction of the connected member. The coupling device described. The intubation support tool as a member to be connected, which is formed in a long shape and guides the intubation tube to a predetermined position and assists the insertion of the intubation tube, and the intubation support tool is connected. An intubation support device characterized by comprising: a joint device.

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