JP2008125809A - Connector structure, connecter member having the same, temperature/humidity exchanger for respiration, elbow member and tracheal tube - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connector structure and an artificial respiration member capable of preventing an occurrence of expiration difficulty by preventing an increase in internal pressures of the respiratory organ and the lung by erroneous connection of an oxygen supply tube, in a connector structure arranged at a patient's distal side of a tracheal tube constituting an artificial respiration circuit. <P>SOLUTION: This connector structure for connecting between the tracheal tube 6 and an artificial respirator to circulate expiration/inspiration in an artificial respiration circuit which has the artificial respirator and the oxygen supply tube for supplying oxygen for the artificial respiration, is provided with a first connection part 12 provided in the artificial respirator side and formed into a tubular shape, a first passage 12A provided in the first connection part 12 and formed to allow the inspiration to freely circulate between itself and the tracheal tube 6, and a closure prevention means 15 for preventing the closure of the inside of the tracheal tube 6 relative to the outside air by the connection of the oxygen supply tube to the first passage 12A. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a connector structure in which a tracheal tube or a tracheostomy tube inserted into a respiratory trachea, in particular, a cuffed tracheal tube is used in an artificial respiration circuit together with an oxygen supply tube, and is disposed on a patient distal side. With regard to a member for artificial respiration, it is possible to prevent the occurrence of atmospheric pressure trauma (barotrauma) due to the patient having difficulty in exhalation due to an oxygen supply tube connected to the flow path in error, thereby ensuring patient safety. .

  Conventionally, respiratory management by intubating a cuffed tracheal tube (tracheal tube, tracheostomy tube, hereinafter referred to as tracheal tube) has been widely performed for patients who need respiratory management, and an artificial respiration circuit has been used. In order to prevent an increase in pressure in the respiratory trachea during artificial respiration, for example, Patent Document 1 is disclosed.

  FIG. 1 is a diagram showing an example of performing respiratory management by intubating a tracheal tube 6 into a trachea K1 of a patient K using an artificial respiration circuit 1, and a respiratory circuit 4 connected to an artificial respirator 2 and the trachea A breathing temperature / humidity exchanger (hereinafter referred to as an artificial nose) or an artificial respiration member 5 such as an elbow member formed between the tube 6 and a connector connected to the patient distal side of the tracheal tube 6 A breathable connection is made via the member 10, and an oxygen supply tube 7 is connected to the artificial respiration member 5 as necessary so that oxygen (including oxygen-added air) can be supplied freely.

  The oxygen supplied from the oxygen supply tube 7 is pressurized at a predetermined pressure. However, when the patient K exhales, the oxygen moves to the respirator 2 side together with exhalation and is discharged to the outside air. The internal pressure does not become higher than a predetermined pressure.

  FIG. 2 is a view showing an example of connection when the tracheal tube 6 and the artificial respiration member 5 in the artificial respiration circuit 1 are the artificial nose 20, and a connector member is provided at the patient distal side opening of the tracheal tube 6. 10 is connected, and a taper portion is formed on the outer peripheral surface 12B of the first connection portion 12 located on the patient distal side of the connector member 10, and this taper portion is connected to the patient side plug (artificial respiratory device) of the artificial nose 20. The connector member 10 and the artificial nose 20 are connected to each other. Moreover, the 1st connection part 22 is formed in the patient distal side of the artificial nose 20, and the connection part (connection part by the side of an artificial respiration apparatus) of the respiration circuit 4 is connected.

FIG. 3 is a diagram showing an example of connection when the tracheal tube 6 and the artificial respiration member 5 in the artificial respiration circuit 1 are elbow members 30, and the connector member 10 connected to the patient distal side of the tracheal tube 6. The taper portion of the first connecting portion 12 is inserted into the patient-side plug (connecting portion on the side of the artificial respirator) 34 of the elbow member 30 so that the connector member 10 and the elbow member 30 are connected. The breathing circuit 4 is connected to the first connection portion 32 on the patient distal side of the elbow member 30.
In general, the first connecting portion 12 of the connector member 10, the first connecting portion 22 of the artificial nose 20, and the first connecting portion 32 of the elbow member 30 form a connector structure of 15M conical joint (ISO 5361). Has been.

Also, oxygen tubes 70A and 70B shown in FIGS. 4A and 4B are diagrams showing details of the oxygen supply tube 7, and the oxygen tube 70A moves to the tip of the tube body 71 to which oxygen is transferred. The oxygen supply tube 70 </ b> B has a flexible holder 76 that can be expanded in diameter instead of the holder 74. Both the holder 74 and the holder 76 are configured so that the inner peripheral surfaces thereof hold the outer shape of the oxygen supply plug 26 of the artificial nose 20 or the oxygen supply plug 36 of the elbow member 30.
Japanese Patent Laying-Open No. 2005-288045

  However, when performing artificial respiration with the above artificial respiration circuit, the oxygen supply tube removed from the oxygen supply plug due to lack of time margin or work unfamiliarity when moving the patient by urgent measures or examinations, etc. For example, as shown in FIGS. 5A and 5B, on the inner peripheral surface 12C of the connection portion 12 of the connector member 10 connected to the tracheal tube 6, the holder portions 74 of the oxygen supply tubes 70A and 70B, By inserting 76 inadvertently, the flow path 12A is blocked, and the space between the inside of the tracheal tube 6 and the outside air is blocked. As a result, the patient K becomes difficult to exhale and the intrapulmonary pressure rises. There is a problem of possible injury.

  The present invention has been made in consideration of such circumstances, and relates to a connector structure disposed on the patient distal side of the tracheal tube constituting the artificial respiration circuit, and the oxygen supply tube is erroneously connected to breathe the patient. A connector structure capable of preventing the occurrence of difficulty in exhalation so that the intratracheal and pulmonary pressure does not increase, and an artificial respiration member such as a tracheal tube, a connector member, an artificial nose, and an elbow member using this structure. It is to provide.

  In order to solve the above-described problems, the invention according to claim 1 is an artificial device including a tracheal tube that can be tracheally intubated, an artificial respirator, and an oxygen supply tube that supplies oxygen to artificial respiration. A first connection portion used in the breathing circuit, disposed on the patient distal side and freely connectable to the connection portion on the artificial respiration apparatus side, and an inner periphery of a hole formed in the first connection portion A connector structure having a first flow path defined by a surface and communicated with the tracheal tube side, wherein the oxygen supply tube is connected to the first flow path so that the tracheal tube side is It is characterized by having a blocking prevention means for preventing blocking against the outside air.

  According to the connector structure according to the present invention, since the connector structure includes the blocking prevention means, the inside of the tracheal tube is blocked from the outside air by connecting the oxygen supply tube to the first flow path of the connector structure. It will not be done. As a result, the occurrence of difficulty in exhalation in which exhalation in the tracheal tube cannot be discharged is prevented, and the pressure in the tracheal tube is prevented from rising above a predetermined value due to oxygen supplied from the oxygen supply tube. .

  The invention according to claim 2 is the connector structure according to claim 1, wherein the blocking means is formed in the first flow path, and the oxygen supply tube is connected to the first flow path. It is comprised by the connection prevention wall part which prevents this.

  According to the connector structure of the present invention, the connection prevention wall portion is formed in the first flow path of the connector structure, and the oxygen supply tube is prevented from being inserted into the flow path. As a result, the first flow path is not blocked by the oxygen supply tube, and exhaled air can be discharged from the tracheal tube to the outside air.

  The invention according to claim 3 is the connector structure according to claim 1, wherein the blocking prevention means is formed in the first flow path, and forms an air passage between the outer peripheral surface of the oxygen supply tube. It is comprised by the shape part which enables.

  According to the connector structure according to the present invention, since the shape part enabling the air passage to be formed between the outer peripheral surface of the oxygen supply tube is formed in the flow path of the first connection part, Even if the oxygen supply tube is mistakenly inserted into the flow path of the first connection portion, an air passage is secured between the inner peripheral surface of the first connection portion and the outer peripheral surface of the oxygen supply tube. As a result, the inside of the tracheal tube is prevented from being blocked by the outside air, and the exhaled air in the tracheal tube can be surely discharged to the outside air.

  The invention according to claim 4 is the connector structure according to claim 3, wherein the shape portion is formed on the inner peripheral surface and is formed to extend in the axial direction of the first connection portion. It is a strip-shaped part.

  According to the connector structure of the present invention, the convex portion extending in the axial direction of the first connecting portion on the inner peripheral surface is formed on the inner peripheral surface of the hole defining the first flow path. Therefore, the outer peripheral surface of the oxygen supply tube is separated from the inner peripheral surface by the convex shape portion, and a ventilation path extending in the axial direction is formed between the outer peripheral surface of the oxygen supply tube and the inner peripheral surface. Is done.

  The invention according to claim 5 is the connector structure according to claim 3, wherein the shape portion is formed on the inner peripheral surface and extends in a direction intersecting the axial direction on the inner peripheral surface. It is characterized by being a projected ridge shape part.

  According to the connector structure according to the present invention, for example, the spiral convex portion having a lead angle such as a screw thread is formed so as to intersect the axial direction on the inner peripheral surface of the first connection portion. The oxygen supply tube inserted by mistake is easily held on the inner peripheral side of the first flow path, and the entire circumference of the inner peripheral surface or a wide range is vented between the outer peripheral surface of the oxygen supply tube and the inner peripheral surface. It is possible to form a path. Therefore, exhaled air can be discharged stably.

  The invention according to claim 6 is the connector structure according to claim 3, wherein the shape portion is formed by a groove-shaped portion formed on the inner peripheral surface and communicated with the outside air from the tracheal tube side. It is characterized by being.

  According to the connector structure according to the present invention, since the concave groove-shaped portion is formed on the inner peripheral surface of the first connection portion, when the oxygen supply tube is erroneously connected to the first connection portion, the oxygen supply tube An air passage is reliably formed between the outer peripheral surface and the groove-shaped portion.

  The invention according to claim 7 is used in an artificial respiration circuit including a tracheal tube that can be tracheally intubated, an artificial respiration device, and an oxygen supply tube that supplies oxygen to the artificial respiration. It is a connector member arrange | positioned in the patient distal side between apparatuses, Comprising: The connector structure in any one of Claims 1-6 is provided, It is characterized by the above-mentioned.

  The invention according to claim 8 is used in an artificial respiration circuit including a tracheal tube which can be tracheally intubated, an artificial respirator, and an oxygen supply tube which supplies oxygen to the artificial respiration. A respiratory temperature / humidity exchanger disposed on the distal side of a patient between the device and the device, comprising the connector structure according to any one of claims 1 to 6.

  The invention according to claim 9 is used in an artificial respiration circuit including a tracheal tube that can be tracheally intubated, an artificial respirator, and an oxygen supply tube that supplies oxygen to the artificial respiration. An elbow member arranged on the patient distal side between the device and the connector structure according to any one of claims 1 to 6.

  The invention according to claim 10 is a tracheal tube that is used in an artificial respiration circuit and can be freely inserted into a respiratory trachea, and includes the connector structure according to any one of claims 1 to 6. And

  According to the connector member, respiratory temperature / humidity exchanger, elbow member, and tracheal tube according to the present invention, since the connector structure according to any one of claims 1 to 6 is provided, the first flow path is provided. The connection part of the oxygen supply tube is prevented from being accidentally inserted into the first flow path, and an air passage that communicates with the outside air from the tracheal tube is ensured even when the oxygen tube is accidentally inserted. can do.

  According to the connector structure and the artificial respiration member according to the present invention, an air passage that is provided with an occlusion prevention means and allows the tracheal tube side and the outside air to communicate with each other is secured. It can be reliably distributed. As a result, the occurrence of difficulty in exhalation can be reliably prevented by erroneous connection of the oxygen supply tube, and the occurrence of atmospheric trauma (barotrauma) resulting therefrom can be prevented.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 6 is a view showing a connector member according to the first embodiment of the present invention. Reference numeral 10 denotes a connector member, and reference numeral 6 denotes a cuffed tracheal tube (hereinafter referred to as a tracheal tube).

  The connector member 10 is used in the artificial respiration circuit 1 including the artificial respiration apparatus 2 shown in FIG. 1 and the oxygen supply tube 7 for supplying oxygen to the artificial respiration air generated by the artificial respiration apparatus 2. The artificial respiration member 5 such as the artificial nose 20 shown in FIG. 2 or the elbow member 30 shown in FIG. 3 is arranged by being inserted into the patient's distal side (the artificial respiration device 2 side) of the tracheal tube 6 intubated. At the same time, the tracheal tube 6 and the respirator 2 are connected between the tracheal tube 6 and the respirator 4 connected to the respirator 2 so as to be freely circulated.

  The oxygen supply tube 7 can be freely connected to the artificial nose 20 or the elbow member 30 as necessary. The oxygen supply tube 7 is, for example, the artificial nose 20 illustrated in FIG. A pipe 72 inserted into a hole of the oxygen supply plug 26, a holder 74 for fixing and holding the pipe 72 to the oxygen supply plug 26, and a flexible oxygen supply tube body made of vinyl chloride or the like. 71, and the holder 74 is movable in the axial direction within a range restricted by the stopper 73. In the oxygen supply tube 70B, the diameter of the distal end side is expanded instead of the holder portion 74 and the radial direction 3 has a flexible holder portion 76 that can be expanded in diameter, and can hold the oxygen supply plug 36 of the elbow member 30 illustrated in FIG.

  The artificial nose 20 includes a housing 21, a first connection portion 22 that is disposed on the patient distal side of the housing 21, is integrated with the housing 21, and has a first flow path 22 </ b> A formed therein, and a patient side A plug 24, an oxygen supply plug 26, and a wet heat storage body 27 housed in the housing 21 are provided, and a patient-side joint of the breathing circuit 4 is connected to the first connection portion 22 on the distal side of the patient. An oxygen supply tube 7 (oxygen supply tube 70A in the example of FIG. 2) can be connected to the oxygen supply plug 26.

  The elbow member 30 is an L-shaped housing 31 having a flow path 31A formed therein, a first connection portion 32 formed integrally with the patient distal side of the housing 31, and a patient distal side. The first connection portion 32 is formed integrally with the housing 31 and has a first flow path 32A formed therein, a patient-side plug 34, and an oxygen supply plug 36. The oxygen supply plug 26 The oxygen supply tube 7 (oxygen supply tube 70B in the example of FIG. 3) is freely connectable.

  The first connection part 22 of the artificial nose 20 and the first connection part 32 of the elbow member 30 are, for example, ISO 5361 “Anesthesia and Respiratory Equipment—Tractor Tube and Connector”, JIS T 7221 “Tractor Tube and Connector”. Are formed in a male taper shape with a 15M conical joint and can be connected to the breathing circuit 4 respectively. The patient-side plugs 24 and 34 have a tapered shape in which the distal end sides of the outer peripheral surfaces 24B and 34B are slightly reduced in diameter with the axis O2 as an axis, and the distal ends of the inner peripheral surfaces 24C and 34C are slightly expanded in diameter. For example, a so-called 22M / 15F conical coaxial joint (ISO 5361, the same shall apply hereinafter) is used.

As shown in FIG. 6, the connector member 10 according to the first embodiment includes a first connection portion 12 and a second connection portion 13, and the first connection portion 12 is disposed on the patient distal side. In addition, a hole defining the first flow path 12A is formed in the axial direction of the first connection portion 12 inward, and the inner peripheral surface 12C of the first connection portion 12 forming the hole is a patient. The distal opening is formed in a tapered shape that is slightly expanded in diameter.
In the connector member 10 according to this embodiment, the first connection portion 12 and the first flow path 12A formed inside the first connection portion 12 form a connector structure.

The second connecting portion 13 is disposed on the tracheal tube 6 side, and the outer peripheral surface 13B has a tapered shape in which the diameter of the tracheal tube 6 is slightly reduced, and the second flow path 13A is defined inwardly. The formed hole is formed in the axial direction of the second connection portion 13, and the second flow path 13 </ b> A is connected to the first flow path 12 </ b> A so as to communicate with the first connection portion 12. Respiratory air can flow between the opening on the side and the opening on the tracheal tube 6 side of the second connecting portion 13.
Further, on the base end side (first connection portion 12 side) with respect to the second connection portion 13, a wall portion 10 </ b> H in which both ends in the longitudinal direction of the rectangle are formed in an arc shape is a radial direction of the second connection portion 13. It is formed to extend outward.

  In this embodiment, the first connecting portion 12 is a male taper shape with a 15M conical joint, and the patient side plug of the breathing circuit 4, the patient side plug 24 of the artificial nose 20, or the patient side plug 34 of the elbow member 30. Can be inserted and connected.

  Moreover, the connector member 10 of 1st Embodiment is provided with the protruding item | line shape part 15, and the protruding item | line shape part 15 is the axis line O1 of the 1st connection part 12 on the internal peripheral surface 12C of the 1st connection part 12. FIG. An axial ridge shape portion 15A formed extending in the direction, and a second ridge inwardly in the radial direction on the bottom surface 12D of the first flow path 12A continuously from the axial ridge shape portion 15A. It is comprised from the radial direction ridge shape part 15B formed until it reaches | attains the flow path 13A, and the two ridge shape parts 15 are formed in the position symmetrical with respect to the axis line O1.

  Therefore, according to the connector structure according to this embodiment, even when the oxygen supply tubes 70A and 70B are erroneously inserted into the first flow path 12A of the first connection portion 12, the holders 74 and 76 are inserted. Is separated from the inner peripheral surface 12B by the axial ridge-shaped portion 15A, and a gap is formed between the inner peripheral surface 12B and the outer peripheral surfaces 74B, 76B of the holders 74, 76. The communicating air passage P is formed, and the tracheal tube 6 is prevented from being blocked from the outside air. As a result, the exhalation of the patient K is reliably discharged from the tracheal tube 6 to the outside air, and the pressure in the tracheal tube 6 is prevented from rising above a predetermined value.

  In addition, since the radial protruding portion 15B is formed on the bottom surface 12D of the first connection portion 12, the holders 74 and 76 are formed longer than the length of the first flow path 12A. , 76 is in contact with the bottom surface 12D side, a gap is formed between the bottom surface 12D and the holders 74, 76 so that the first flow path 12A and the second flow path 13A communicate with each other. A ventilation path P is secured.

Next explained is the second embodiment of the invention.
FIG. 7 is a diagram illustrating a second embodiment.
The same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.
This embodiment differs from the first embodiment described above in that the axial ridge-shaped portion 15A formed on the inner peripheral surface 12C of the first connection portion 12 is an opening portion of the first flow path 12A. It is a point formed only in a part from the bottom to the bottom surface 12D.

  As a result, according to the connector structure according to this embodiment, when the oxygen supply tubes 70A and 70B are erroneously inserted into the first flow path 12A, the outer periphery of the holders 74 and 76 of the oxygen supply tubes 70A and 70B. Since an air passage having a large area can be formed between the surfaces 74B and 76B and the inner peripheral surface of the first flow path 12A, the exhaled air in the tracheal tube 6 can be easily discharged to the outside air.

Next explained is the third embodiment of the invention.
FIG. 8 is a diagram illustrating a third embodiment. The same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.
This embodiment differs from the first embodiment described above in that the axial line on the inner peripheral surface 12C is replaced with the axial ridge-shaped portion 15A formed on the inner peripheral surface 12C of the first connecting portion 12. An axial ridge-shaped portion 16 is formed that extends in a direction intersecting the axis O1 with a predetermined angle with respect to the O1 direction and proceeds in the axial direction at a predetermined lead angle. The axial ridge-shaped portion 16 is formed to be twisted by 90 ° from the opening of the flow path 12A to the bottom surface 12D.

According to the connector structure according to this embodiment, when the oxygen supply tubes 70A and 70B are erroneously inserted into the first flow path 12A, the shaft extends in the direction of the axis O1 while being twisted by 90 ° in the circumferential direction. The direction convex strip-shaped portion 15A is such that the holders 74 and 76 of the oxygen supply tubes 70A and 70B are stably held on the inner peripheral side of the first flow path 12A, and around the outer peripheral surfaces 74B and 76B of the holders 74 and 76. Since a gap having substantially the same width in the radial direction is formed, a stable air passage P is formed between the inside of the tracheal tube 6 and the outside air. In FIG. 8, for the sake of convenience, a portion where the axial ridge-shaped portion 15 </ b> A is not formed from the opening portion of the flow channel 12 </ b> A to the bottom surface 12 </ b> D is shaded to form the ventilation path P. Since the air passage is also formed above and below the axial ridge-shaped portion 15A, it goes without saying that it extends over the entire portion except the circumferential thickness of the axial ridge-shaped portion 15A.
As a result, the exhaled air in the tracheal tube 6 can be sufficiently discharged.

Next explained is the fourth embodiment of the invention.
FIG. 9 is a diagram showing a fourth embodiment.
The same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.
In this embodiment, the groove-shaped portion 17 is formed on the inner peripheral surface 12B formed inside the first connecting portion 12, and the groove-shaped portion 17 is formed on the inner surface 12B of the first connecting portion 12. An axial groove shape portion 17A extending along the direction of the axis O1 on the inner peripheral surface 12C and the axial groove shape portion 17A is formed continuously from the bottom surface 12D until reaching the second flow path 13A. And a radially concave groove-shaped portion 17B extending inward in the radial direction, and two concave groove-shaped portions 17 are formed at opposing positions targeted for the axis O1.

According to the connector structure according to this embodiment, when the oxygen supply tubes 70A and 70B are erroneously inserted into the first flow path 12A of the first connection portion 12, the inner peripheral surface of the first connection portion 12 is obtained. Since the axial groove-shaped portion 17A is formed in 12C, even when the oxygen supply tubes 70A and 70B are erroneously connected to the first connection portion 12, the connection portion between the inner peripheral surface 12C and the oxygen supply tubes 70A and 70B The air passage P is reliably formed between the two.
In addition, since the radial groove-shaped portion 17B is formed on the bottom surface 12D of the first connecting portion 12, even when the holders 74 and 76 are in contact with the bottom surface 12D, the space between the holders 74 and 76 An air passage is formed by the groove-shaped portion.

Next explained is the fifth embodiment of the invention.
FIG. 10 is a diagram illustrating a fifth embodiment.
The same parts as those in the fourth embodiment are denoted by the same reference numerals, and the description thereof is omitted.
This embodiment is different from the above-described fourth embodiment in that the axial line on the inner peripheral surface 12C is used instead of the axial groove-shaped portion 17A formed on the inner peripheral surface 12C of the first connecting portion 12. An axial groove-shaped portion 17A that extends in a direction intersecting the axis O1 at a predetermined angle with respect to the O1 direction and proceeds in the axial direction at a predetermined lead angle is formed. The axial groove-shaped portion 17A is formed so as to be twisted by 90 ° from the opening of the flow path 12A to the bottom surface 12D.

  According to the connector structure according to this embodiment, when the oxygen supply tubes 70A and 70B are erroneously inserted into the first flow path 12A, the outer peripheral surfaces 74B of the holders 74 and 76 of the oxygen supply tubes 70A and 70B. , 76B, the axial concave groove-shaped portion 17A is reliably formed, so that a stable air passage P is formed between the inside of the tracheal tube 6 and the outside air. As a result, exhaled air in the tracheal tube 6 can be sufficiently discharged.

Next, a sixth embodiment of the present invention will be described.
FIG. 11 is a view showing the sixth embodiment, and is a view of the inner peripheral surface 12C constituting the first flow path 12A of the first connecting portion 12 as viewed from the direction of the axis O1.
The portions other than those shown in FIG. 11 are the same as those in the first embodiment described above, and thus the description thereof is omitted.
This embodiment differs from the first embodiment described above in that the inner peripheral surface 12C constituting the first flow path 12A matches the circular shape 12f centered on the axis O1 indicated by the two-dot chain line. It is a point which has the part (shape part) formed without the distance from the axis line O1 larger than circular shape 12f.

According to the connector structure according to this embodiment, since the shape constituting the inner peripheral surface 12C of the first connection portion 12 is formed larger than the shape constituting the axis O1, the holders of the oxygen supply tubes 70A and 70B When 74 and 76 are erroneously inserted into the first flow path 12A, an air passage P is formed between the outer peripheral surfaces 74B and 76B of the holders 74 and 76 and the inner peripheral surface.
As a result, the inside of the engine tube 6 communicates with the outside air through the ventilation path P, and the holders 74 and 76 are difficult to be fixed to the flow path 12A, so that the blockage of the first flow path 12A is suppressed.
It should be noted that other shapes can be adopted for a portion that does not coincide with the circular shape 12f and is formed at a distance from the axis O1 that is larger than the circular shape 12f, and is subject to the axis O1. It goes without saying that is not needed.

Next, a seventh embodiment of the present invention will be described.
FIG. 12 is a diagram illustrating a seventh embodiment.
The same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.
This embodiment is different from the first embodiment described above in that the inner peripheral surface 12C of the first connecting portion 12 is replaced with the inner peripheral surface 12C in the direction of the axis O1 instead of the axial convex portion 15A. The connection prevention wall portion 19 extending from the inner peripheral surface 12C to the inner peripheral side is formed, and as a result, the holders 74 and 76 of the oxygen supply tubes 70A and 70B are connected to the first flow path 12A. Can be reliably prevented.

According to the connector structure of this embodiment, since the oxygen supply tubes 70A and 70B cannot be inserted into the first flow path 12A, the first flow path 12A is reliably blocked by the oxygen supply tubes 70A and 70B. Can be prevented.
Note that the connection preventing wall portion 19 may be provided on the bottom surface 12D and may be configured to stand toward the opening of the first flow path 12A, for example.

In addition, this invention is not limited to the said embodiment, In the range which does not deviate from the meaning, it can change suitably.
In the first embodiment, the case where the connector structure is used for the first connection portion of the connector member 10 connected to the patient distal side of the tracheal tube 6 has been described. It is also possible to use the first connection part 22 on the patient distal side of the patient and the first connection part 32 on the patient distal side of the elbow member 30.

In the first to fifth embodiments, two ridge-shaped portions 15, 16 or groove-shaped portions 17, 18 are formed on the inner peripheral surface 12C of the first connecting portion 12, respectively. However, it is sufficient that at least one of these shape portions is formed, and any number of shape portions can be formed.
In addition, the case where the ridge-shaped portions 15 and 16 are formed extending from the bottom surface 12D to the opening of the first flow path 12A has been described, but at a necessary position in the range from the bottom surface 12D to the opening. It is also possible to provide only the convex portions 15 and 16.

In the first to fifth embodiments, the radial ridge shape portions 15B and 16B or the radial groove shape portions 17B and 18B formed on the bottom surface 12D are provided from the inner peripheral surface 12C to the second. Although the case of extending linearly to the flow path 13A has been described, it may be formed in a curved shape such as a spiral.
Further, when the oxygen supply tubes 70A and 70B are erroneously inserted into the first flow path 12A, the length of the first flow path 12A in the direction of the axis O1 is such that the oxygen supply tubes 70A and 70B do not reach the bottom surface 12D. When the thickness is sufficiently secured, it is possible to adopt a configuration in which the radial ridge shape portions 15B and 16B or the radial groove shape portions 17B and 18B are not formed.

  Moreover, in the said embodiment, when the 1st connection part 12 and the 2nd connection part 13 of the connector member 10, the connection part 22 of the artificial nose 20, and the connection part 32 of the elbow member 30 are all made into a cylindrical shape. However, it can also be used for connection configurations other than the ISO standard described above.

In the first to fifth embodiments described above, the case where the two shape portions are the same has been described. However, the ridge shape portions 15, 16 and the groove shape portions 17, 18 may be used in any combination. It is also possible to combine these and the shape part according to the sixth embodiment.
In the seventh embodiment, the connection preventing wall portion 19 is configured as a single flat wall portion formed from the bottom surface 12D of the first flow path 12A to the opening. However, it goes without saying that the length, position, shape and quantity of the connection preventing wall portion 19, for example, the arrangement with respect to the axis O <b> 1 can be arbitrarily set.

It is a figure which shows the example of a structure of an artificial respiration circuit. It is a figure which shows the artificial nose used for the artificial respiration circuit in FIG. 1, and its connection example. It is a figure which shows the elbow member used for the artificial respiration circuit in FIG. 1, and its connection example. It is a figure which shows the example of the oxygen supply tube used in an artificial respiration circuit. It is a figure which shows the example at the time of connecting oxygen supply tube incorrectly with respect to the connector member arrange | positioned at the distal side of a tracheal tube. It is a figure which shows the connector member using the connector structure which concerns on the 1st Embodiment of this invention, (A) is a longitudinal cross-sectional view, (B) is the connector structure of a 1st connection part from a patient distal side. FIG. It is a figure which shows the connector member using the connector structure which concerns on the 2nd Embodiment of this invention, (A) is a longitudinal cross-sectional view, (B) is the connector structure of a 1st connection part from a patient distal side. FIG. It is a figure which shows the connector member using the connector structure which concerns on the 3rd Embodiment of this invention, (A) is a longitudinal cross-sectional view, (B) is the connector structure of a 1st connection part from a patient distal side. FIG. It is a figure which shows the connector member using the connector structure which concerns on the 4th Embodiment of this invention, (A) is a longitudinal cross-sectional view, (B) is the connector structure of a 1st connection part from a patient distal side. FIG. It is a figure which shows the connector member using the connector structure which concerns on the 5th Embodiment of this invention, (A) is a longitudinal cross-sectional view, (B) is the connector structure of a 1st connection part from a patient distal side. FIG. It is the figure which looked at the connector structure concerning a 6th embodiment of the present invention from the patient distal side. It is a figure which shows the connector member using the connector structure which concerns on the 7th Embodiment of this invention, (A) is a longitudinal cross-sectional view, (B) is the connector structure of a 1st connection part from a patient distal side. FIG.

Explanation of symbols

K patient K1 respiratory trachea P ventilation path 1 artificial respiration circuit 2 artificial respiration equipment 4 respiration circuit 5 artificial respiration member 6 tracheal tube 7 oxygen supply tube 10 connector member 12 first connection portion 12A first flow path 12C inner peripheral surface 13 2nd connection part 13A 2nd flow path 15, 16 Convex shape part 17, 18 Concave groove shape part 19 Connection prevention wall part 20 Artificial nose 30 Elbow member

Claims (10)

Used in an artificial respiration circuit including a tracheal tube that can be tracheally intubated, an artificial respiration device, and an oxygen supply tube that supplies oxygen to the artificial respiration, and is disposed on the patient distal side and the artificial respiration device side A first connecting portion that is freely connectable to the connecting portion;
A connector structure including a first flow path defined by an inner peripheral surface of a hole formed in the first connection portion and communicated with the tracheal tube;
A connector structure, comprising: an obstruction prevention means for preventing the tracheal tube side from being obstructed against outside air by connecting the oxygen supply tube to the first flow path. The connector structure according to claim 1,
The blocking prevention means includes
A connector structure comprising a connection prevention wall portion formed in the first flow path and preventing the oxygen supply tube from being connected to the first flow path. The connector structure according to claim 1,
The blocking prevention means includes
A connector structure, characterized in that the connector structure is formed by a shape portion that is formed in the first flow path and allows an air passage to be formed between the oxygen supply tube and an outer peripheral surface thereof. The connector structure according to claim 3,
The shape part is
A connector structure, characterized in that the connector structure is a ridge-shaped part formed on the inner peripheral surface and extending in the axial direction of the first connection part. The connector structure according to claim 3,
The shape part is
A connector structure, wherein the connector structure is formed on the inner peripheral surface and extends in a direction intersecting the axial direction on the inner peripheral surface. The connector structure according to claim 3,
The shape part is
A connector structure characterized in that it is formed of a concave groove-shaped portion formed on the inner peripheral surface and communicated with the outside air from the tracheal tube side. Used in an artificial respiration circuit including a tracheal tube that can be tracheally intubated, an artificial respiration device, and an oxygen supply tube that supplies oxygen to the artificial respiration, and a patient distal between the tracheal tube and the artificial respiration device A connector member disposed on the side,
A connector member comprising the connector structure according to claim 1. Used in an artificial respiration circuit including a tracheal tube that can be tracheally intubated, an artificial respiration device, and an oxygen supply tube that supplies oxygen to the artificial respiration, and a patient distal between the tracheal tube and the artificial respiration device A breathing temperature and humidity exchanger arranged on the side,
A respiratory temperature and humidity exchanger comprising the connector structure according to any one of claims 1 to 6. Used in an artificial respiration circuit including a tracheal tube that can be tracheally intubated, an artificial respiration device, and an oxygen supply tube that supplies oxygen to the artificial respiration, and a patient distal between the tracheal tube and the artificial respiration device An elbow member arranged on the side,
An elbow member comprising the connector structure according to any one of claims 1 to 6. A tracheal tube used in an artificial respiration circuit and freely intubated into the respiratory trachea,
A tracheal tube comprising the connector structure according to any one of claims 1 to 6.

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