JP2015119757A - Washing tube of endoscope - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a washing tube of an endoscope capable of reliably preventing foreign material matters from entering into an endoscope conduit and supplying a sufficient amount of fluid with a sufficient flow rate and pressure for the washing and disinfection of the interior of the endoscope conduit.SOLUTION: The washing tube of an endoscope comprises: a main conduit 51 that connects the endoscope conduit and a washing/disinfection device to each other, supplies fluid F sent from the washing/disinfection device to the interior of the endoscope conduit, and at least parts of which include curvature travel portions 51c and 51d, and travel-direction variation portions 51a and 51b consecutively provided from the curvature travel portions 51c and 51d and is formed by being spirally wound; and a sub conduit 52 that is protrudingly provided at the travel-direction variation portion 51b along a tangential direction E of the curvature travel portion 51c, communicated to the main conduit 51, has a closed protrusion end 52t, and stores foreign matters W in the fluid F flowing the main conduit 51 by centrifugal force of the fluid F flowing the main conduit 51.

Description

  The present invention connects an endoscope line provided in an endoscope and a cleaning / disinfecting apparatus for the endoscope, and supplies a fluid sent from the cleaning / disinfecting apparatus into the endoscope line. The present invention relates to an endoscope cleaning tube.

  In recent years, endoscopes inserted into a subject have been widely used in the medical field and the industrial field. The endoscope can observe the inside of the subject by inserting an elongated insertion portion into the subject.

  By the way, a medical endoscope is cleaned and disinfected after use by, for example, a cleaning / disinfecting apparatus. It should be noted that the endoscope is cleaned and disinfected not only on the outer surface but also in various endoscope lines such as a known suction line, a front water supply line, an air / water supply line provided in the endoscope. .

  Specifically, in addition to a cleaning tube in which one end is connected to a fluid supply port of the cleaning / disinfecting apparatus to a cap of each pipe provided in a connector of an endoscope placed in a cleaning / disinfecting tank of the cleaning / disinfecting apparatus. When the cleaning / disinfecting device is driven with the end connected, cleaning liquid, disinfecting liquid, rinsing water, dewatering alcohol, dewatering water are connected to each pipe line through the cap of each pipe line provided in the connector. A fluid such as industrial air is supplied. Thereafter, the fluid is discharged into the cleaning / disinfecting tank from the opening of each pipeline formed on the distal end surface of the insertion portion, whereby the inside of each pipeline is cleaned and disinfected.

  However, in such a cleaning / disinfecting configuration in the endoscope pipeline, when foreign matter such as dust in the cleaning / disinfecting device is mixed in the fluid supplied into each pipeline via each base, Foreign matter is also supplied into each pipeline. As a result, there has been a problem that the discharge port of the cleaning / disinfecting tank is clogged by foreign matter discharged together with the fluid from the opening of each pipe line at the distal end surface of the insertion portion together with the fluid.

  In view of such a problem, Patent Document 1 discloses that, when cleaning and disinfecting, the insertion portion is attached to the distal end side in the insertion direction (hereinafter simply referred to as the distal end side) and communicates with the endoscope duct after the attachment. A cap having a long hole and a filter for removing foreign matter in the long hole is disclosed.

  According to such a cap, the foreign matter discharged from the opening on the distal end surface of the endoscope conduit flows into the long hole of the cap and is removed by the filter, so the discharge port of the cleaning / disinfecting tank is blocked by the foreign matter. Can be prevented.

JP 2011-186

  Here, the air / water supply conduit described above is used to remove dirt on the observation window by supplying fluid to the observation window provided on the distal end surface of the insertion portion. In a mirror, an L-shaped nozzle is generally provided on the tip side so that the opening is directed to the observation window.

  In general, the nozzle has a flow path diameter of an opening including a portion bent in an L shape so as to increase the flow rate of the fluid supplied from the opening to the observation window.

  However, when the flow path diameter is narrowed, there is a problem that foreign matter contained in the fluid is clogged in the opening when the fluid is supplied from the mouthpiece of the air / water supply conduit to the opening of the nozzle.

  In addition, the above is not limited to the air / water supply pipeline, and when foreign matter is large, the same applies to other endoscope pipelines, and foreign matter contained in the fluid is clogged in each pipeline. There was a case.

  Here, in patent document 1, since it is the structure which removes the foreign material discharged | emitted from opening of the front end surface of each pipe line with the filter of a cap, clogging of the foreign substance in each pipe line cannot be prevented.

  In addition, a configuration in which a filter is provided in a cleaning tube or a cleaning / disinfecting device in order to prevent foreign matters from entering each pipeline is also well known.

  However, in the configuration in which foreign matter is removed using a filter, the flow rate, flow rate, and supply pressure of the fluid supplied into each pipe line are reduced due to the resistance when the fluid passes through the filter. However, in order to clean and disinfect the inside of each pipe line, there is a problem that the cleaning and disinfecting time must be set long.

  Note that the above is not limited to a direct-view type endoscope, but may be a side-view type endoscope in which an outer peripheral surface on the distal end side of an insertion portion is provided with an observation window, an opening of each pipeline, and the like. It is the same.

  The present invention has been made in view of the above problems, and can reliably prevent the entry of foreign matter into the endoscope duct and an amount and a flow rate sufficient for cleaning and disinfecting the endoscope duct, An object of the present invention is to provide an endoscope cleaning tube capable of supplying a fluid of pressure.

  In order to achieve the above object, an endoscope cleaning tube according to an aspect of the present invention connects an endoscope conduit provided in an endoscope and the endoscope cleaning and disinfecting device, and also performs the cleaning. A fluid delivered from the disinfection device is supplied into the endoscope conduit, and at least a part thereof has a curvature traveling portion and a traveling direction variable portion connected to the curvature traveling portion, and is wound in a spiral shape. The main pipe line formed by being rotated, and provided in the travel direction variable part so as to protrude along the tangential direction of the curvature travel part, and communicates with the main pipe line, and the projecting end is closed and the main pipe line flows. A sub-line in which foreign matter in the fluid is stored by the centrifugal force of the fluid flowing through the main line.

  According to the present invention, it is possible to reliably prevent entry of a foreign substance into an endoscope pipeline and to supply a fluid having a sufficient amount, flow rate, and pressure for cleaning and disinfecting the endoscope pipeline. An endoscope cleaning tube can be provided.

The figure which shows the endoscope by which the washing | cleaning tube of the endoscope of this Embodiment is used and the inside of an endoscope channel is wash | cleaned and disinfected. The endoscope of FIG. 1 is placed in a cleaning / disinfecting tank of a cleaning / disinfecting apparatus, and an air supply port and a liquid supply port provided in the cleaning / disinfecting tank, and an air supply base and a liquid supply provided in a connector of the endoscope The figure which shows schematically the state which each connected with the nozzle | cap | die with the washing tube of the endoscope of this Embodiment The top view which expands and shows the washing tube of the endoscope of FIG. Partial sectional view of the endoscope cleaning tube along line IV-IV in FIG. FIG. 3 is a plan view showing a modified example of the cleaning tube in which each traveling direction variable portion located on the lower side in the gravity direction in FIG. 3 is connected to a bypass pipe line which is provided with a filter on the downstream side and communicates with the main pipe line. FIG. 3 is a plan view of the cleaning tube showing a state in which the central axis of the main channel of the cleaning tube in FIG. 3 is positioned in parallel to the direction of gravity.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a view showing an endoscope in which the endoscope tube is cleaned and disinfected by using the endoscope cleaning tube of the present embodiment.

  As shown in FIG. 1, an endoscope 1 is connected to an insertion portion 2 to be inserted into a subject and a proximal end side in the insertion direction of the insertion portion 2 (hereinafter simply referred to as a proximal end side). The main part is composed of the operation part 6, the universal cord 11 extended from the operation part 6, and the connector 12 provided at the extension end of the universal code 11. Note that the endoscope 1 is electrically connected to an external device such as a control device or a lighting device via the connector 12.

  The operation unit 6 is provided with an up / down bending operation knob 7 for bending a bending portion 4 (to be described later) of the insertion portion 2 in the up / down direction and a left / right bending operation knob 9 for bending the bending portion 4 in the left / right direction.

  Further, the operation unit 6 is provided with a fixing lever 8 that fixes the turning position of the up / down bending operation knob 7 and a fixing knob 10 that fixes the turning position of the left / right bending operation knob 9.

  The insertion portion 2 includes a distal end portion 3, a bending portion 4, and a flexible tube portion 5 in order from the distal end side, and is formed in an elongated shape.

  The bending portion 4 is bent in, for example, four directions of up, down, left, and right by a turning operation of the up / down bending operation knob 7 or the left / right bending operation knob 9, so that an optical unit (not shown) provided in the distal end portion 3 is bent. The observation direction can be changed, and the insertability of the tip 3 in the subject can be improved. Further, the flexible tube portion 5 is connected to the proximal end side of the bending portion 4.

  Further, as shown in FIG. 2, which will be described later, one end is opened in the distal end surface 3s of the distal end portion 3 and the other end is inserted in the insertion portion 2, the operation portion 6, the universal cord 11, and the connector 12 of the endoscope 1. An endoscope conduit 20 opened to the air supply base 12a and the liquid supply base 12b provided in the connector 12 is provided. As described above, the endoscope line 20 includes a known suction line, a forward water supply line, an air / water supply line, and the like.

  In addition, as described above, a plurality of endoscope ducts 20 are usually provided in the endoscope 1. However, in FIG. 2, the endoscope ducts are shown in order to simplify the drawing and description. The case where only one 20 is provided is shown as an example.

  Next, a configuration for cleaning and disinfecting the endoscope duct 20 provided in the endoscope 1 of FIG. 1 using the cleaning and disinfecting apparatus 100 will be described with reference to FIGS.

  FIG. 2 shows the endoscope of FIG. 1 placed in the cleaning / disinfecting tank of the cleaning / disinfecting apparatus, and the air supply port and the liquid supply port provided in the cleaning / disinfecting tank, and the air supply provided in the connector of the endoscope. It is a figure which shows roughly the state which each connected the nozzle | cap | die and the liquid feeding nozzle | cap | die with the washing | cleaning tube of the endoscope of this Embodiment.

  3 is an enlarged plan view showing the cleaning tube of the endoscope of FIG. 2, and FIG. 4 is a partial cross-sectional view of the cleaning tube of the endoscope along the line IV-IV in FIG.

  When the endoscope 1 is cleaned and disinfected using the cleaning / disinfecting apparatus 100, the endoscope 1 is placed in the cleaning / disinfecting tank 110 of the cleaning / disinfecting apparatus 100 as shown in FIG. In addition, since the detailed structure of the washing | cleaning disinfection apparatus 100 is known, the description is abbreviate | omitted.

  Thereafter, in order to clean and disinfect the endoscope channel 20 provided in the endoscope 1, a liquid supply base 12 a provided in the connector 12 and a liquid supply port 101 provided in the cleaning / disinfecting tank 110 are provided. The endoscope is connected using a cleaning tube (hereinafter simply referred to as a cleaning tube) 50a.

  Specifically, the adapter 71 provided at one end of the cleaning tube 50a is connected to the liquid feeding base 12a, and the adapter 73 provided at the other end of the cleaning tube 50a is connected to the liquid feeding port 101.

  Further, the air supply base 12b provided in the connector 12 and the air supply port 102 provided in the cleaning / disinfecting tank 110 are connected using the cleaning tube 50b.

  Specifically, the adapter 72 provided at one end of the cleaning tube 50b is connected to the air supply base 12b, and the adapter 74 provided at the other end of the cleaning tube 50b is connected to the air supply port 102.

  The cleaning tube 50a supplies the liquid sent from the liquid supply port 101 of the cleaning / disinfecting apparatus 100 into the endoscope duct 20 via the liquid supply base 12a, and the cleaning tube 50b is the cleaning / disinfecting apparatus. The gas sent from the 100 air supply ports 102 is supplied into the endoscope channel 20 through the air supply base 12b.

  The cleaning tubes 50a and 50b have the same shape, although the number of turns of a spiral portion of the main pipe 51 described later is different. Therefore, hereinafter, the cleaning tubes 50 a and 50 b are shown as the cleaning tube 50 for the sake of simplicity. The configuration indicated as the cleaning tube 50 applies to both the cleaning tubes 50a and 50b.

  As shown in FIGS. 3 and 4, the cleaning tube 50 includes a main pipeline 51 formed by winding at least a portion in a spiral shape.

  As shown in FIGS. 2 and 3, in this embodiment, the main pipe 51 has a central axis when the bases 12 a and 12 b and the ports 101 and 102 are connected by the cleaning tube 50. C is positioned parallel to the horizontal direction Q.

  As shown in FIG. 3, the spiral portion of the main pipeline 51 spirals with curvature running portions 51 c and 51 d and running direction variable portions 51 a and 51 b connected to the curvature running portions 51 c and 51 d. It is formed by being wound into a shape.

  The curvature running portion 51c is provided with a plurality of semicircular shapes in plan view from the direction of the central axis C with the central axis C of the main pipeline 51 as the center of curvature. As shown in FIG. When viewed in plan from the outer peripheral side, the vehicle travels by being inclined toward one side R1 in the radial direction K of the main pipeline 51 and the direction P2 in the direction P parallel to the central axis C and the horizontal direction Q in FIG.

  The curvature traveling portion 51d is provided with a plurality of semicircular shapes in plan view from the direction of the central axis C at a position opposite to the curvature traveling portion 51c with the central axis C as the center of curvature. As shown in FIG. 3, when the main pipeline 51 is viewed in plan from the outer peripheral side, the main pipeline 51 is inclined to the other side R2 and the direction P2 in the radial direction K in FIG.

  The travel direction variable unit 51a changes the travel direction of the main pipeline 51 from the curvature travel unit 51d to the curvature travel unit 51c. The bases 51a and 12b and the ports 101 and 102 are connected by the main pipeline 51, respectively. In this case, a plurality of them are arranged side by side along the direction P on the other side R2 of the radial direction K with respect to the central axis C which is the upper side of the gravity direction G.

  The travel direction variable portion 51b changes the travel direction of the main pipeline 51 from the curvature travel portion 51c to the curvature travel portion 51d. The bases 51a and 12b and the ports 101 and 102 are connected by the main pipeline 51, respectively. In this case, a plurality of them are arranged side by side along the direction P on one side R1 in the radial direction K with respect to the central axis C on the lower side of the gravity direction G.

  That is, the spiral part of the main pipeline 51 is formed by repeating one set of the traveling direction variable part 51a, the curvature traveling part 51c, the traveling direction variable part 51b, and the curvature traveling part 51d along the direction P by several sets. It is formed by being spirally wound.

  Therefore, the fluid F that flows in from the inflow ports 51i that respectively communicate with the adapters 73 and 74 of the main pipe line 51 is the travel direction variable unit 51a, the curvature travel unit 51c, the travel direction variable unit 51b, the curvature travel unit 51d, and the travel direction variable. It flows while spirally winding in the order of the portions 51a, and is discharged from the discharge port 51e communicating with the adapters 71 and 72, respectively.

  Further, the cleaning tube 50 is provided so as to protrude along the tangent line E of each curvature traveling portion 51c in each traveling direction variable portion 51b, and flows through the main conduit 51, which communicates with the main conduit 51 and whose projecting end 52t is closed. A foreign substance W in the fluid F is provided with a bag-like sub-pipe 52 in which the foreign substance W enters and is accommodated by the centrifugal force of the fluid F flowing through the spiral main pipe 51.

  That is, the sub-pipe 52 has a fluid F feeding direction in the curvature traveling portion 51c of the fluid F that flows in a spiral shape in the order of the traveling direction variable portion 51a, the curvature traveling portion 51c, the traveling direction variable portion 51b, and the curvature traveling portion 51d. And projecting along the tangential direction E.

  The sub-pipe 52 is connected to the travel direction variable portions 51b located below the gravity direction G when the bases 12a and 12b and the ports 101 and 102 are connected by the main pipe 51, respectively. 3. As shown in FIG. 4, it is located so as to protrude downward in the gravity direction G.

  Each sub-pipe 52 is positioned so as to protrude downward in the direction of gravity G because the foreign matter W in the fluid F that spirally flows in the main pipe 51 as shown in FIG. In addition to facilitating entry into the sub-pipe 52, the foreign matter W stored in each sub-pipe 52 is prevented from jumping out of the sub-pipe 52 and entering the main pipe 51 again. .

  In other words, if each sub-pipe 52 is positioned so as to protrude above the gravity direction G with respect to each traveling direction variable portion 51a located above the gravity direction G, each sub-pipe This is because even if the foreign object W enters and is stored in 52, the foreign object W falls by gravity and enters the main pipeline 51 again.

  In addition, when the sub-pipe 52 is provided in all of the plurality of travel direction variable portions 51b, each travel direction variable portion 51b is relative to the central axis C on the lower side in the gravity direction G as described above. Since a plurality of sub-channels 52 are arranged along the direction P on the one side R1 in the radial direction K, each sub-pipe 52 is also on one side in the radial direction K with respect to the central axis C on the lower side in the gravity direction G. In R <b> 1, a plurality are arranged along the direction P.

  The sub-pipe 52 is formed integrally with the main pipe 51 from the same material as the main pipe 51. Moreover, the sub-pipe 52 does not need to be provided in all the travel direction variable parts 51b. That is, it should just be provided with respect to the at least 1 traveling direction variable part 51b.

  Further, the cleaning tube 50 is a disposable one that is discarded after use.

  Next, the operation of the present embodiment will be briefly described.

  First, the operator places the endoscope 1 in the cleaning / disinfecting tank 110 of the cleaning / disinfecting apparatus 100 when the inside of the endoscope duct 20 is desired to be cleaned / disinfected.

  Thereafter, the operator connects the adapter 71 of the cleaning tube 50a to the liquid feeding base 12a, and connects the adapter 73 of the cleaning tube 50a to the liquid feeding port 101, and each traveling direction variable portion of the main pipeline 51 in the cleaning tube 50a. 51b is set so as to be positioned on the lower side of the gravity direction G, respectively.

  Further, the operator connects the adapter 72 of the cleaning tube 50b to the air supply base 12b, and connects the adapter 74 of the cleaning tube 50b to the air supply port 102. Similarly to the cleaning tube 50a, the operator also uses the main tube in the cleaning tube 50b. Each traveling direction variable portion 51b of the road 51 is set so as to be positioned below the gravity direction G.

  Thereafter, when the cleaning / disinfecting apparatus 100 is driven, liquids such as cleaning liquid, disinfecting liquid, rinsing water, and dehydrating alcohol enter the cleaning tube 50a through the liquid supply port 101, and then enter the liquid supply base 12a. It enters the endoscope duct 20 and is discharged to the cleaning / disinfecting tank 110 from the opening of the endoscope duct 20 on the distal end surface 3s.

  Here, the liquid that has entered the cleaning tube 50a from the liquid supply port 101 flows while spirally rotating along the shape of the main pipeline 51 from the inlet 51i to the outlet 51e through the spiral main pipeline 51.

  At this time, the foreign substance W in the liquid is stored as a result of moving to the outer peripheral side of the main pipeline 51 by the centrifugal force of the liquid flowing through the main pipeline 51 and entering into each bag-like sub-pipe 52. Here, as described above, each sub-pipe 52 is formed in a bag shape in which the protruding end 52t is closed, and is positioned so as to protrude downward in the gravity direction G. The foreign matter W stored in the path 52 does not enter the main pipeline 51 again.

  Further, a gas such as dewatering air enters the cleaning tube 50b through the air supply port 102, and then enters the endoscope duct 20 from the air supply base 12b, and the endoscope is viewed from the distal end surface 3s. The liquid is discharged from the opening of the mirror pipe line 20 into the cleaning / disinfecting tank 110.

  Here, the gas that has entered the cleaning tube 50b from the air supply port 102 flows while spirally rotating along the shape of the main pipeline 51 from the inlet 51i to the outlet 51e through the spiral main pipeline 51.

  At this time, the foreign matter W in the gas enters and is stored in each bag-like sub-pipe 52 by the centrifugal force of the gas flowing in the main pipe 51. Here, as described above, each sub-pipe 52 is formed in a bag shape in which the protruding end 52t is closed, and is positioned so as to protrude downward in the gravity direction G. The foreign matter W stored in the path 52 does not enter the main pipeline 51 again.

  After completion of the cleaning and disinfecting process of the endoscope 1, the cleaning tube 50a is removed by removing the adapters 73 and 71 from the liquid supply port 101 and the liquid supply base 12a, and the air supply port 102 and the air supply base are removed. When the adapters 74 and 72 are removed from 12b, the cleaning tube 50b is removed, and the cleaning tubes 50a and 50b in which the foreign matter W is stored in the sub-pipe 52 are discarded.

  As described above, in the present embodiment, the tangent lines of the respective curvature traveling portions 51c are connected to the respective traveling direction variable portions 51b located on the lower side in the gravity direction G of the main pipeline 51 wound in a spiral shape of the cleaning tube 50. It is shown that each of the bag-shaped sub-pipes 52 that protrudes downward in the direction of gravity G along the direction E and has the protruding end 52t closed is provided.

  According to this, even if a filter or the like is not provided in the cleaning tube 50, the foreign matter W in the fluid F enters each sub-pipe 52 by the centrifugal force when flowing in the spiral main pipe 51. Therefore, the foreign matter W can be easily removed from the fluid F flowing in the cleaning tube 50.

  The sub-pipe 52 is a pipe that stores the foreign matter W, and the fluid F flows in the main pipe 51 separately from the sub-pipe 52. The flow rate is not reduced.

  That is, it is possible to reliably prevent the foreign matter W from entering the endoscope duct 20 without reducing the amount of fluid F, the supply pressure, and the flow velocity by the filter.

  From the above, it is possible to reliably prevent the entry of the foreign substance W into the endoscope conduit 20 and to supply the fluid F having an amount, a flow rate and a pressure sufficient for cleaning and disinfecting the endoscope conduit 20. An endoscope cleaning tube 50 that can be provided can be provided.

  Hereinafter, a modification will be described with reference to FIG. FIG. 5 shows a modified example of the cleaning tube in which each traveling direction variable portion located on the lower side in the gravity direction in the cleaning tube of FIG. 3 is connected to a bypass pipe connected to the main pipe with a filter provided on the downstream side. FIG.

  In the present embodiment described above, the protruding end 52t of each sub-pipe 52 is shown to be closed.

  Not only this but as shown in FIG. 5, each protrusion end 52t may each be connected with the bypass line 55, respectively. A filter 56 is interposed at a position downstream of each protruding end 52 t of the bypass pipe 55, and a downstream side of the filter 56 communicates with the main pipe 51.

  According to such a configuration, the fluid F that has entered the sub-pipe 52 by centrifugal force from the inside of the spiral main pipe 51 can be circulated in the main pipe 51 by the bypass pipe 55. In addition to ensuring a larger flow rate and flow velocity than the above-described embodiment, the foreign matter W that has entered the bypass conduit 55 can be reliably removed by the filter 56. There is no entry into the pipeline 20.

  Further, since the filter 56 is provided in the bypass conduit 55, the flow velocity and supply pressure of the fluid F flowing in the main conduit 51 are not reduced.

  Therefore, as shown in FIG. 5, even in the configuration in which each sub-pipe 52 is connected to the bypass pipe 55, the same effect as that of the above-described embodiment can be obtained.

  Hereinafter, another modification will be described with reference to FIG. FIG. 6 is a plan view of the cleaning tube showing a state in which the central axis of the main channel of the cleaning tube in FIG. 3 is positioned parallel to the direction of gravity.

  In the present embodiment described above, as shown in FIG. 3, the main pipe 51 is configured such that when the bases 12 a and 12 b and the ports 101 and 102 are connected by the cleaning tube 50, the central axis C is horizontal. It was shown to be parallel to direction Q.

  However, at the positions of the ports 101 and 102 in the cleaning / disinfecting tank 110, when the bases 12a and 12b and the ports 101 and 102 are connected to each other by the cleaning tube 50, the central axis C of the main pipeline 51 is not necessarily the same. In some cases, the position is not parallel to the horizontal direction Q. For example, as shown in FIG. 6, the central axis C of the main pipeline 51 may be positioned parallel to the gravity direction G.

  However, in the cleaning tube 50 of the present embodiment, as shown in FIG. 6, even when the central axis C of the main pipeline 51 is positioned parallel to the gravity direction G, the foreign matter W is fluidized by each sub-pipe 52. Can be removed from F.

  Specifically, as shown in FIG. 6, when the bases 12 a and 12 b and the ports 101 and 102 are connected by the cleaning tube 50, the central axis C is positioned in parallel to the gravity direction G. Even if it exists, each traveling direction variable part 51b is located in a line along the direction P toward the diagonally downward side of the gravity direction G, and each sub-pipe 52 is with respect to each traveling direction variable part 51b. They are located side by side along the direction P so as to protrude obliquely downward in the direction of gravity G.

  Even in the case shown in FIG. 6, each sub-pipe 52 has a fluid F that flows in a spiral shape in the order of the traveling direction variable portion 51a, the curvature traveling portion 51c, the traveling direction variable portion 51b, and the curvature traveling portion 51d. Is provided so as to protrude along the tangential direction E in the liquid feeding direction of the fluid F in the curvature traveling portion 51c.

  Therefore, even when the central axis C shown in FIG. 6 is located in parallel with the gravity direction G, the foreign matter W in the fluid F flowing in the spiral main pipeline 51 is caused to enter each sub-pipe 52 by centrifugal force. Stored. Therefore, the foreign matter W can be reliably removed from the fluid F flowing in the main pipeline 51 using each sub-pipe 52 as in the present embodiment.

  When the central axis C shown in FIG. 6 is positioned parallel to the gravity direction G, the travel direction variable portions 51a are also positioned side by side along the direction P so as to be directed obliquely below the gravity direction G. Therefore, as shown by the dotted lines in FIG. 6, each of the travel direction variable portions 51a is also lined up along the direction P so as to protrude obliquely downward in the gravity direction G, and each of the auxiliary ends 53t closed. A pipe line 53 may be provided.

  Further, in this case, each sub-pipe 53 is in the curvature traveling portion 51d of the fluid F that flows spirally in the order of the traveling direction variable portion 51a, the curvature traveling portion 51c, the traveling direction variable portion 51b, and the curvature traveling portion 51d. It is provided so as to protrude along the tangential direction H in the liquid feeding direction of the fluid F.

  Therefore, in such a configuration, the foreign matter W in the fluid F flowing in the spiral main pipeline 51 is stored not only in each sub-pipe 52 but also in each sub-pipe 53 by centrifugal force. In the case shown in FIG. 6, as described above, each sub-pipe 53 is also provided so as to protrude obliquely downward in the gravity direction G, so that the foreign matter W accommodated in each sub-pipe 53 is the main pipe. It does not jump out into the road 51.

  Therefore, in the case shown in FIG. 6, if each sub-pipe 53 is provided, the sub-pipe 52 and each sub-pipe 53 are more reliably connected in the main pipe 51 than when only each sub-pipe 52 is provided. The foreign matter W in the fluid F flowing through can be removed.

DESCRIPTION OF SYMBOLS 1 ... Endoscope 20 ... Endoscope channel 50 ... Endoscope cleaning tube 50a ... Endoscope cleaning tube 50b ... Endoscope cleaning tube 51 ... Main conduit 51a ... Travel direction variable part 51b ... Travel direction Variable portion 51c ... curvature running portion 51d ... curvature running portion 52 ... sub-pipe 52t ... projection end 53 ... sub-pipe 53t ... projection end 100 ... cleaning disinfection device C ... center axis E ... tangential direction F ... fluid G ... gravity direction H: Tangent direction P: Direction parallel to the central axis Q: Horizontal direction R: Radial direction R1: One side in the radial direction R2: Other side in the radial direction W: Foreign matter

Claims (7)

Connecting an endoscope line provided in an endoscope and a cleaning / disinfecting apparatus for the endoscope, and supplying fluid sent from the cleaning / disinfecting apparatus into the endoscope line; A main pipeline formed by being spirally wound with at least a portion having a curvature traveling portion and a traveling direction variable portion connected to the curvature traveling portion;
The foreign material in the fluid flowing through the main pipeline, which protrudes along the tangential direction of the curvature running portion in the travel direction variable portion and communicates with the main pipeline and whose projection end is blocked, flows through the main pipeline. A secondary pipe that is accommodated by centrifugal force of the fluid;
An endoscope cleaning tube comprising:   When the endoscope pipe line and the cleaning / disinfecting apparatus are connected by the main pipe line, the sub pipe line is located on the lower side in the gravitational direction with respect to the traveling direction variable unit located on the lower side in the gravitational direction. The endoscope cleaning tube according to claim 1, wherein the endoscope cleaning tube is positioned so as to protrude. The traveling direction variable portion is provided in plural on one side and the other side in the radial direction of the main pipeline with respect to the central axis of the main pipeline,
The endoscope cleaning tube according to claim 1 or 2, wherein the sub-duct is provided in at least a part of the plurality of travel direction variable portions. The plurality of travel direction variable portions on the one side and the plurality of travel direction variable portions on the other side are located side by side along the central axis direction,
The endoscope cleaning tube according to claim 3, wherein the plurality of sub-ducts respectively provided in the plurality of travel direction variable portions are also arranged along the central axis direction.   5. The inner pipe according to claim 4, wherein the main axis is located parallel to a horizontal direction when the endoscope pipe and the cleaning / disinfecting apparatus are connected by the main pipe. 6. Endoscope cleaning tube.   5. The inner pipe according to claim 4, wherein the main axis is positioned parallel to the direction of gravity when the endoscope pipe and the cleaning / disinfecting apparatus are connected by the main pipe. 6. Endoscope cleaning tube.   The inner pipe according to claim 6, wherein the sub-pipe is provided for each of the plurality of travel direction variable portions on the one side and the other side that are located on the lower side in the gravity direction. Endoscope cleaning tube.

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