JP2011101773A - Washing adapter for endoscope - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a washing adapter, in which detachment to an operation part is easy and positioning can firmly be performed. <P>SOLUTION: The washing adapter consists of a housing, a pair of cylinder grip members, which is arranged in both the sides surface of the housing and in which a cross section, in which the tip end of each horizontal section faces each other, is of a L-shape, and a plug, which slidably penetrates the top of the housing and in which a flange in contact with the flange of cylinder is formed in a lower end part, a cylinder grip member is freely rotatable to the housing and is always biased in a direction, in which the tip end of the each horizontal section faces each other, by an elastic member, the plug is always biased in a lower direction by the elastic member, the tapered face of the cylinder grip member is in contact with the end part of the flange of the cylinder, and the moment the tip end of the horizontal section of the cylinder grip member clamps the outside of the cylinder by the biasing force by the elastic member, the flange of the plug and the horizontal section of the cylinder grip member clamp the flange of the cylinder. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a cleaning adapter used for an operation unit of an endoscope.

  In general, a medical endoscope system for observing the inside of a body cavity of a patient has a CCD (for imaging inside the body cavity at the distal end of a long insertion portion inserted into the body cavity for observing the inside of the body cavity. Illuminates the body cavity from the distal end of the insertion section through an endoscope having an imaging device such as a charge-coupled device (CMOS) or a complementary metal-oxide semiconductor (CMOS) and a light guide inserted into the endoscope. A video processor including an image processing unit for performing predetermined processing on an image signal output from a light source unit for generating illumination light and an image sensor of an endoscope, and an image signal output from the video processor are displayed It consists of a monitor.

  Since the endoscope is inserted into a body cavity, every time it is used for examination, body fluid, mucous membrane, blood, etc. in the body cavity adhere and become dirty. Therefore, each time an endoscope operator uses an endoscope, it is necessary to clean and disinfect the endoscope to keep the endoscope clean.

  The endoscope used for the inspection is contaminated not only by the appearance part but also in the pipes provided in the endoscope such as the forceps channel, the air / water supply channel, etc. by the various deposits described above. Yes. When cleaning the inside of such a pipeline inside the endoscope, if it is an air supply / water supply channel, remove the air supply button or the water supply button and attach a cleaning adapter to perform cleaning. If it is a channel, brush the inside of the pipeline with a brush for cleaning the channel using an enzyme detergent solution, etc., then attach the channel cleaning device and rinse thoroughly with water, and then disinfect the inside of the pipeline Disinfect with etc. By performing such a series of cleaning and disinfecting operations, the endoscope can be kept clean and used for the next inspection.

  In the above-described cleaning operation, for example, a cleaning adapter as shown in Patent Document 1 is used when cleaning the inside of a pipeline. The operation unit is provided with a cylinder connected to the air / water supply conduit and the suction conduit, and a flange is provided at the inlet of each cylinder. After the cleaning adapter cylinder gripping part is sandwiched between these flanges and the cleaning adapter main body and the flange are positioned, the cleaning adapter sliding part is moved so that the cleaning adapter cylinder fixing member and the cylinder gripping part are Attach the cleaning adapter to the operation unit by sandwiching the flange. After the cleaning adapter is mounted on the operation unit, a cleaning liquid supply device is connected to the cleaning adapter, and the cleaning liquid is pumped to the pipes to clean, disinfect, and dry each pipe.

JP 2004-49699 A

  However, in the structure of the conventional cleaning adapter as described above, the cleaning adapter body is positioned on the flange of the cylinder port, and the sliding part is moved to mount the cleaning adapter on the operation unit. Work and need to be done. For this reason, in the positioning operation, when the clamping of the cleaning adapter to the flange of the cylinder gripping portion is incomplete, the sliding portion cannot be moved normally, and the cleaning adapter must be mounted again. Further, in the above cleaning adapter, for example, when foreign matter or dirt adheres to the gaps between the members of the plurality of members constituting the sliding portion, or foreign matter enters the inside of the cleaning adapter body, these foreign matter or dirt In order to remove, the member may have to be removed from the cleaning adapter body or disassembled.

  The present invention has been made in view of the above circumstances. An object of the present invention is to firmly maintain the attachment between the cleaning adapter and the operation unit when the cleaning liquid is pumped to the pipe line in the endoscope through the cleaning adapter while easily positioning and fixing the cleaning adapter to the operation unit. It is another object of the present invention to provide a washing adapter that can be attached to and detached from an operation unit very easily.

  A cleaning adapter according to an embodiment of the present invention is a cleaning adapter that is attached to a suction or air / water supply cylinder disposed in an operation unit of an endoscope, and the cleaning adapter includes any one of both side surfaces and A cross section in which the center of the bottom surface is open and the vertical part is arranged on each of both open side surfaces of the case, the horizontal part is located below the case, and the tip of each horizontal part faces each other Is formed of a pair of L-shaped cylinder gripping members and a plug slidably penetrating the upper surface of the casing and having a flange formed at the lower end to come into contact with the cylinder flange. The cylinder gripping member is always urged by the first elastic member in the direction in which the front ends of the horizontal portions face each other, and the plug is driven by the second elastic member. , Always down A tapered surface is formed at the tip of the horizontal portion of the cylinder gripping member, and the tapered surface is provided at a position in contact with the end of the cylinder flange, and the tapered surface is the end of the cylinder flange. When the casing is pressed downward in contact with the portion, the taper surface and the end surface of the cylinder flange rub against each other, and the cylinder gripping member faces outside against the urging force of the first elastic member. When the tip of each horizontal portion of the cylinder gripping member gets over the end face of the flange of the cylinder, the cylinder gripping member rotates inward by the biasing force of the first elastic member. At the same time that the front end of the horizontal portion holds the outer surface of the cylinder, the flange of the plug and the horizontal portion of the cylinder holding member hold the flange of the cylinder by the urging force of the second elastic member.

  Preferably, the cylinder gripping member rotates about a shaft inserted through the housing, the first elastic member is a torsion spring wound around the shaft, and one arm portion of the cylinder gripping member is a cylinder. The gripping member and the other arm are in contact with the housing. The second elastic member is a coil spring wound around the plug, and one end of the coil spring is fixed to the upper lower surface of the housing, and the other end is a flange provided at the lower end of the plug. It is fixed to the upper surface of the. Thereby, since the plug or the shaft is inserted into the hollow portion of these springs, it is possible to save the space in the housing as compared with the case where the spring is provided independently in the housing.

  Further, the plug also has a flange at the upper end portion, and the flange at the upper end portion comes into contact with the casing when the plug slides with respect to the casing. The plug has a small-diameter portion and a large-diameter portion, and the small-diameter portion is inserted through the housing, and a step portion between the small-diameter portion and the large-diameter portion contacts the housing. Thereby, the flange provided at the upper end of the plug and the step portion formed by the small diameter portion and the large diameter portion can restrict movement of the plug in the axial direction at an appropriate distance.

  The small diameter portion has a non-circular cross section perpendicular to the axis of the plug, and the hole through which the plug provided in the housing is inserted is also non-circular. As a result, since the plug is restricted by the housing so as not to rotate in the axial direction, the stability when the cleaning adapter is attached to the operation unit can be enhanced.

  According to the structure of the cleaning adapter of the present invention, it is possible to easily attach the cleaning adapter to the operation unit by one operation of pushing the cleaning adapter. Further, when removing from the operation unit, the engagement with the cylinder can be released by simply pushing the cylinder gripping member. In addition, by providing a flange on the plug, the flange abuts against the housing or cylinder gripping member as the plug moves, and the distance that the plug moves is restricted. It is possible to prevent the operation part from being damaged by hitting the part.

It is the schematic which shows the state which mounted | wore the endoscope with the washing | cleaning adapter in one Embodiment of this invention. It is a partially expanded sectional view which shows the state which mounted | wore the endoscope with the washing | cleaning adapter in one Embodiment of this invention. (A) shows the expanded sectional view in the AA line of FIG. 2, (b) shows the expanded sectional view in the BB line of FIG. (A)-(c) is a schematic diagram which shows the state at the time of mounting | wearing the cylinder of the operation part of an endoscope with the washing | cleaning adapter in one Embodiment of this invention in steps. It is an enlarged view which shows the state at the time of mounting | wearing the cylinder of the operation part of an endoscope with the washing | cleaning adapter in one Embodiment of this invention. The expanded sectional view in the CC line of Drawing 5 is shown.

  Hereinafter, the structure of a cleaning adapter according to an embodiment of the present invention will be described with reference to the drawings. In addition, the same number is attached | subjected, when showing the same member over several figures.

  FIG. 1 is a diagram illustrating a cleaning adapter and an operation unit of an endoscope to which the cleaning adapter is attached according to the present embodiment. The cleaning adapter 1 is attached to the cylinder opening of the air / water supply conduit and the suction conduit of the operation unit 2 after the air / water supply button is removed. Details of the attachment will be described later. After the cleaning adapter 1 is attached to each cylinder port, cleaning is performed by supplying a cleaning liquid to each pipe line from an external cleaning device (not shown) connected to the cleaning adapter 1. The distal end of the insertion portion 8 of the endoscope 100 is a bending portion that can be bent by remote operation and a distal end fixing portion (with an objective lens system and an image sensor disposed therein), An angle knob 3 for bending the bending portion is attached to the side portion of the operation portion 2. The angle fixing lever 4 is used when the angle knob 3 is operated to keep the bending angle of the bending portion at a desired angle. In addition, a button group 7 including a plurality of control buttons and the like for performing various controls of the endoscope at the time of treatment is provided on the upper surface portion and the lower surface portion on the proximal end side of the operation unit 2. A treatment instrument insertion port 5 is formed at a position close to the distal end side of the operation unit 2, that is, in the vicinity of the connection portion with the insertion portion 8 of the endoscope. The surgeon inserts a treatment tool for performing various treatments such as biopsy and treatment in the body cavity of the patient from the treatment tool insertion port 5, and a treatment tool insertion channel (not shown) provided in the endoscope. ) Through the treatment tool opening (not shown) at the distal end of the insertion portion 8 to perform a treatment such as collecting a tissue in the body cavity. Furthermore, a universal tube 6 is connected to the operation unit 2. The universal tube 6 sends illumination light generated by a light source unit of a video processor (not shown) to the distal end of the insertion unit 8 and is operated from the buttons of the angle knob 3, the angle fixing lever 4, and the button group 7. Or transmit the signal to a video processor. When an imaging device is used as the observation means, the universal tube 6 transmits a video signal from an imaging device (not shown) disposed at the distal end portion of the insertion portion 8 to the video processor.

  FIG. 2 shows a partially enlarged cross-sectional view of the cleaning adapter 1 and the operation unit 2 when the cleaning adapter 1 is mounted on the operation unit 2. A suction plug 11 and an air / water supply plug 12 are provided on the upper surface of the casing 10 of the rectangular washing adapter 1 whose both sides in the lower center and the depth direction (perpendicular to the paper surface of FIG. 2) are open. Two holes for insertion are provided. The main body of each of the suction plug 11 and the air / water supply plug 12 is a cylindrical body that is slidably fitted into the hole, and each of the suction plug 11 and the air / water supply plug 12 has upper and lower ends. The flanges 11a and 11b and the flanges 12a and 12b are provided respectively. In FIG. 2, the suction plug 11 and the air / water supply plug 12 do not show a liquid injection conduit through which the cleaning liquid injected from the outside passes, but the cleaning liquid is sent to the cylinder conduits 21 and 22. It is possible to provide a liquid injection conduit of any shape capable of. In the housing 10, a coil spring 17 is provided on the side peripheral surface of the suction plug 11 so as to wind the suction plug 11. The coil spring 17 is elastically mounted between the upper lower surface of the housing 10 and the upper surface of the flange 11a at the lower end. One end of the coil spring 17 is on the upper lower surface of the housing 10 and the other end is the flange 11a. It is fixed to the upper surface of each by adhesion or fusion. When the cleaning adapter 1 is attached to the operation unit 2, the coil spring 17 biases the flange 11 a toward the operation unit 2 side. The lower surface of the flange 11 a comes into contact with the upper surface of the flange 23 b of the suction cylinder 23. As a result, the suction plug 11 is positioned and fixed to the suction cylinder 23 of the operation unit 2 via the coil spring 17.

  A coil spring 18 is provided on the side peripheral surface of the air / water supply plug 12 so as to wind the air / water supply plug 12. This coil spring 18 is also elastically mounted between the upper lower surface of the housing 10 and the upper surface of the flange 12a at the lower end, and, like the coil spring 17, one end thereof is placed on the upper lower surface of the housing 10. The other end is fixed to the upper surface of the flange 12a by adhesion or fusion. The coil spring 18 biases the air / water plug 12 toward the operation unit 2. The lower surface of the flange 12a of the air / water supply plug 12 comes into contact with the upper surface of the flange 24b of the air / water supply cylinder 24. Thereby, the air / water plug 12 is positioned and fixed to the air / water supply cylinder 24 of the operation unit 2 via the coil spring 18.

  As described above, the flange 11b and the flange 12b are also provided on the tops of the suction plug 11 and the air / water supply plug 12, respectively. Therefore, even if the casing 10 is pushed upward by the biasing force of the coil springs 17 and 18, the lower surfaces of the flanges 11 b and 12 b abut against the upper surface of the casing 10, so that the suction plug 11 and air / water supply The plug 12 is prevented from being detached from the housing 10, and the axial movement of the suction plug 11 and the air / water supply plug 12 is restricted.

  A pair of shafts 14 are installed between both sides in the depth direction of the both side surfaces between the left and right side surfaces in the housing 10 (left and right direction in FIG. 2). The two shafts 14 extend to the outside of the housing 10 through the respective holes provided on both side surfaces thereof, and both ends of the pair of shafts 14 open the both side surfaces (depth direction in FIG. 2) of the housing 10. Each of the covering sections is in contact with bearing portions 13c protruding from both sides of a pair of L-shaped cylinder gripping members 13, and is fixed by fusion or the like. Accordingly, the pair of L-shaped cylinder gripping members 13 are rotatable with respect to the housing 10 about the respective shafts 14, and the horizontal portion 13 a of the L-shaped cylinder gripping member 13 is formed of the housing. 10, the front end portion 13 b of the horizontal portion 13 a is in a state where the vertical portions of the pair of L-shaped cylinder gripping members 13 cover both open side surfaces of the housing 10. Facing each other on the lower side. Further, as shown in FIG. 3B, torsion springs 15 and 16 are laid on the respective shafts 14 in the housing 10, and one ends of the torsion springs 15 and 16 are L-shaped. The other end of the torsion springs 15 and 16 is in contact with the inner surface of the vertical portion of the cylinder gripping member 13, and the other ends of the torsion springs 15 and 16 are spring receiving portions 10a and 10b protruding from the lower sides of the case 10 to the center of the case. It is in contact with. Therefore, when each of the pair of L-shaped cylinder gripping members 13 is rotated about the shaft 14 to the outside of the housing 10, the urging force of each of the torsion springs 15, 16 works, and the cylinder gripping member 13 Each tries to return to its original position.

  Each tip 13b of the horizontal portion 13a constituting a part of the pair of cylinder gripping members 13 is used for suction when the cleaning adapter 1 is mounted on the suction cylinder 23 and the air / water supply cylinder 24 of the operation unit 2. The cylinder 23 and the air / water supply cylinder 24 are engaged with the lower surfaces of the flanges 23b and 24b with the outer peripheral surfaces sandwiched from both sides. As shown in FIG. 5, the tip 13b has two semicircular shapes (suction for suction) so as to sandwich the suction cylinder 23 and the air / water supply cylinder 24 from both sides. It has a shape in which a notch portion of the outer periphery of the cylinder 23 and the air / water supply cylinder 24 is formed (substantially the same as the semicircular shape of the outer periphery). Therefore, in a state where the cleaning adapter 1 is mounted on the operation unit 2, the pair of cylinder gripping members 13 are arranged such that the notch portion at the front end edge of the horizontal portion 13 a is pulled by the suction cylinder 23 and the urging force of the torsion springs 15 and 16. The outer circumferential surface of the air / water feeding cylinder 24 is sandwiched from both sides and fitted.

  Further, as shown in FIG. 6, the notch at the front end edge of the horizontal portion 13a is formed in a downwardly tapered shape toward the outside, and the flanges 23b and 24b of the suction cylinder 23 and the air / water supply cylinder 24 are formed. The end portions 23a and 24a are formed in an upwardly tapered shape toward the inside. Therefore, in order to attach the cleaning adapter 1 to the suction cylinder 23 and the air / water supply cylinder 24, the suction plug 11 and the air / water supply plug 12 are applied to the suction cylinder 23 and the air / water supply cylinder 24. As shown in FIG. 6, first, the tapered surface of the tip end portion 13b and the tapered surfaces formed on the end portions 23a and 24a of the flanges 23b and 24b are engaged, and the casing 10 is further pushed downward. Then, the tapered surfaces rub against each other, and the cylinder gripping member 13 rotates outward against the urging force of the torsion springs 15 and 16, and the tapered surface of the tip portion 13b is the tapered surface of the flanges 23b and 24b. As a result of the urging force of the torsion springs 15, 16, the pair of cylinder gripping members 13 rotate inward, and the outer circumferences of the suction cylinder 23 and the air / water supply cylinder 24 are moved. A sandwich from both sides. At the same time, due to the downward biasing force of the coil springs 17, 18, the lower surface of the flanges 11 a, 12 a of the suction plug 11 and the air / water supply plug 12 and the upper surface of the horizontal portion 13 a of the cylinder gripping member 13, The flanges 23b and 24b of the suction cylinder 23 and the air / water supply cylinder 24 are sandwiched from above and below. As a result, the suction adapter 23 and the air / water supply cylinder 24 of the cleaning adapter 1 can be firmly positioned and fixed with respect to the operation unit 2, and the suction plug 11 and the air supply can be used during cleaning and during the feeding of the cleaning liquid. It is possible to prevent such a phenomenon that the water supply plug 12 is detached from the suction cylinder 23 or the air / water supply cylinder 24 and the cleaning adapter 1 is detached from the operation unit 2.

  Insertion ends of the suction plug 11 and the air / water supply plug 12 into the suction cylinder 23 and the air / water supply cylinder 24 are respectively tapered, and the suction plug 11 has a tapered portion 11c. Each of the water supply plugs 12 has a tapered portion 12c. The tapered portion 11 c of the suction plug 11 is provided as a truncated cone-shaped member at the insertion end of the suction plug 11. In the suction plug 11, a pipe line for feeding the cleaning liquid is provided in the axial direction from one end to the other end of the suction plug 11, and the cleaning liquid pumped through the pipe line is connected to the cylinder pipe line from the tip of the tapered portion 11 c. 21 is sent out. In the air / water supply plug 12, a cleaning liquid pressure-feeding pipe line is provided in the axial direction from one end to the other end of the air / water supply plug 12, and the cleaning liquid pressure-fed through the pipe line is a tapered portion 12 c. Is sent out from the cleaning liquid outlet 12d to the cylinder line 22. Further, the cylinder pipe 22 is provided with various pipes 25 and 26 for supplying air and water, and the cleaning liquid outlet 12e of the air / water plug 12 is connected to the pipe 25 and the cleaning liquid outlet. 12f respectively opposes the pipeline 26. Since the suction plug 11 and the air / water supply plug 12 have different lengths in the axial direction, when the cleaning adapter 1 is attached to the operation unit 2, the type of the plug can be easily identified and the plug and cylinder You can work without making a mistake. In addition, by inserting the longer air supply / water supply plug 12 first, the air supply / water supply plug 12 can be used as a guide when the suction plug 11 is inserted, so that each plug has the same length. The mounting operation can be performed more easily than in some cases.

  3A shows a cross-sectional view taken along line AA in FIG. 2, and FIG. 3B shows a cross-sectional view taken along line BB in FIG. As shown in FIG. 3 (a), in the air / water plug 12, the portion inserted through the housing 10 forms a small-diameter portion 12g, and the small-diameter portion 12g is part of both sides of the cylinder in cross section. It is formed to have a substantially oval shape with a notch. Moreover, the hole provided in the housing | casing 10 becomes a shape match | combined with the cross-sectional shape of the small diameter part 12g. As a result, the air / water supply plug 12 is restricted from rotating on a surface perpendicular to the axial direction (that is, a surface parallel to the paper surface of FIG. 3A). The small-diameter portion 12g has shifted to the large-diameter portion 12h in the housing 10, and when the housing 10 moves to the operation unit 2 side, the step portion between the small-diameter portion 12g and the large-diameter portion 12h Abuts the upper lower surface. Accordingly, when the upper surface of the large-diameter portion 12h and the lower surface of the housing 10 are in contact with each other, the moving distance of pushing the housing 10 toward the operation unit can be limited.

  Next, a method for attaching the cleaning adapter 1 to the operation unit 2 will be described. 4A to 4C show stepwise attachment of the cleaning adapter 1 to the operation unit 2. As shown in FIG. 4A, when the cleaning adapter 1 is brought close to the operation unit 2, the pair of cylinder gripping members 13 are moved by the torsion springs 15, 16 to the horizontal portion 13 a by the suction plug 11 and the air / water supply. It is biased toward the plug 12 side. Further, the flanges 11 a and 12 a of the suction plug 11 and the air / water supply plug 12 are urged by the coil springs 17 and 18 toward the horizontal portions 13 a of the pair of cylinder gripping members 13. Therefore, the upper surface of the horizontal portion 13a is maintained in contact with the lower surfaces of the flanges 11a and 12a.

  Next, as shown in FIG. 4B, when the cleaning adapter 1 is mounted on the operation unit 2, first, the tapered surface formed at the distal end portion 13 b of the horizontal portion 13 a of the cylinder gripping member 13 is used for suction. The cylinder 23 and the air / water supply cylinder 24 abut against the tapered surfaces formed at the end portions 23a and 24a of the flanges 23b and 24b. Further, when the casing 10 of the cleaning adapter 1 is further pushed down, the taper surfaces of the end portions 23a and 24a slide the tip end portion 13b of the horizontal portion 13a to the outside, and force that pushes the cylinder gripping member 13 outward acts. . This pushing force increases as the force for pushing down the cleaning adapter 1 is increased. When this pushing force becomes larger than the urging force of the torsion springs 15, 16 against the cylinder gripping member 13, the cylinder gripping member 13 rotates in the direction of opening outward with the shaft 14 as an axis. For the same reason, the other cylinder gripping member 13 facing the cylinder gripping member 13 also rotates in the direction to open outward. At this time, the flanges 11a and 12a of the suction plug 11 and the air / water supply plug 12 are also applied to the respective cylinder gripping members 13 by the biasing force of the coil springs 17 and 18 while the two cylinder gripping members are rotating. The abutted state is maintained. Accordingly, when the casing 10 of the cleaning adapter 1 is pushed down, the pair of cylinder gripping members 13 are gradually opened outward as in the case of a door, and at the same time, the suction plug 11 and the air / water supply plug 12 are opened. The front end of the operation unit 2 is lowered while the flanges 11a and 12a are brought into contact with the pair of cylinder gripping members 13, respectively, and proceeds into the cylinder lines 21 and 22 of the suction cylinder 23 and the air / water supply cylinder 24. I will do it.

  When the casing 10 of the cleaning adapter 1 is further pushed down, the pair of cylinder gripping members 13 are further opened outward. Then, the flanges 11a and 12a move between the two cylinder holding members, and the lower surfaces of the flanges 11a and 12a come into contact with the upper surfaces of the flanges 23b and 24b of the suction cylinder 23 and the air / water supply cylinder 24. In addition, the pair of cylinder gripping members 13 are also lowered, and when the distal end portion 13b of the horizontal portion 13a of the cylinder gripping member 13 moves beyond the end portions 23a and 24a of the flanges 23b and 24b, the torsion springs 15 and 16 are attached. Due to the force, the distal end portion 13 b of the horizontal portion 13 a of the cylinder gripping member 13 is fitted to the outer peripheral surfaces of the suction cylinder 23 and the air / water supply cylinder 24. As a result, as shown in FIG. 4C, the flanges 23b and 24b of the suction cylinder 23 and the air / water supply cylinder 24 are moved by the coil springs 17 and 18 and the torsion springs 15 and 16, respectively. The air supply plug 12 is sandwiched between the flanges 11 a and 12 a and the horizontal portions 13 a of the pair of cylinder gripping members 13. Accordingly, the cleaning adapter 1 is positioned and fixed in the vertical direction and the horizontal direction with respect to the suction cylinder 23 and the air / water supply cylinder 24, and the cleaning adapter 1 drops from the operation unit 2 while pumping the cleaning liquid or the like. The phenomenon can be prevented.

  When the cleaning adapter 1 is attached to the operation unit 2 and each pipe line in the endoscope is cleaned, disinfected, dried, etc., and then the cleaning adapter 1 is removed from the operation unit 2, the surgeon must have a pair of cylinder gripping members. By pushing the upper side surface of 13 into the housing 10 side, the pair of cylinder gripping members 13 are rotated around the respective shafts 14 to open outward, and the horizontal portion 13a, the suction cylinder 23, and the air / water supply The fitting with the flanges 23b, 24b of the cylinder 24 is released. Then, the cleaning adapter 1 is lifted while maintaining the pair of cylinder gripping members 13 opened to the outside, and the horizontal portion 13a of the pair of cylinder gripping members 13 is moved upward so that the suction cylinder 23 and the air / water supply cylinder When the cylinder gripping member 13 is no longer pushed in after the 24 flanges 23b and 24b are overcome, the cylinder gripping member 13 closes inward, and the upper surface of the horizontal portion 13a of the cylinder gripping member 13 and the flanges 11a and 12a of the plugs 11 and 12 are closed. The cleaning adapter 1 returns to the state before being attached to the operation unit 2. As described above, according to the cleaning adapter of the present invention, not only the attachment to the operation unit 2 but also the removal can be easily and quickly performed, thereby improving the treatment efficiency without causing the operator to feel stress. Can do.

  This completes the description of the embodiment of the present invention. The present invention is not limited to the above-described configuration, and various modifications can be made within the scope of the technical idea of the present invention. For example, the case where two cylinders are cleaned with one cleaning adapter has been described above. However, the cleaning adapter according to the present invention is not limited to this, and a configuration in which one cylinder is cleaned with one cleaning adapter may be 3 It is also possible to employ a configuration in which two or more cylinders are cleaned. Further, the shape of each plug is not limited to the above shape, and various shapes can be employed. Further, the surfaces of the front end portion of the horizontal portion of the cylinder gripping member and the end portion of the flange of the cylinder that are in contact with each other can be formed in a shape other than the tapered surface. Specifically, the tip of the horizontal portion of the cylinder gripping member has a curved surface or the like that makes contact with the end of the cylinder flange so that the cylinder gripping member is pushed outward by the end of the flange. It can be done smoothly. In addition, when the sliding part with respect to the housing | casing of a plug is made into a small diameter part, the cross section of a small diameter part and the hole of the housing | casing which a plug penetrates can be made into arbitrary non-circular shapes, if the rotation of a plug can be prevented.

DESCRIPTION OF SYMBOLS 1 Cleaning adapter 2 Operation part 10 Housing | casing 11 Suction plug 12 Air supply / water supply plug 11a, 12a, 11b, 12b, 23b, 24b Flange 12g Small diameter part of plug 12h Large diameter part of plug 13 Cylinder gripping member 13a Cylinder gripping member Horizontal portion 13b Tip portion 14 of cylinder gripping member Shafts 15, 16 Torsion springs 17, 18 Coil spring 23 Suction cylinder 24 Air supply / water supply cylinder

Claims (6)

A cleaning adapter attached to a suction or air / water supply cylinder disposed in an operation part of an endoscope,
The washing adapter is
A case in which either side surface or lower surface center is opened;
A pair of cylinders having a L-shaped cross section, each having a vertical portion disposed on each open side surface of the housing, a horizontal portion positioned below the housing, and tip portions of the horizontal portions facing each other. Members,
The upper surface of the housing is slidably penetrated, and a lower end portion of the plug is formed with a flange for contacting the flange of the cylinder.
The cylinder gripping member is rotatable with respect to the housing;
The cylinder gripping member is constantly urged by the first elastic member in the direction in which the front ends of the horizontal portions face each other,
The plug is always urged downward by the second elastic member,
A tapered surface is formed at the tip of the horizontal portion of the cylinder gripping member, and the tapered surface is provided at a position where it abuts against the end of the flange of the cylinder.
When the casing is pushed downward in a state where the tapered surface is in contact with the end portion of the cylinder flange, the tapered surface and the end surface of the cylinder flange rub against each other, and the cylinder gripping member is When the front end of each horizontal portion of the cylinder gripping member is moved over the end surface of the flange of the cylinder by rotating against the urging force of the first elastic member, the urging force of the first elastic member causes The cylinder gripping member rotates inward and the tip of each horizontal portion sandwiches the outer surface of the cylinder, and at the same time, the biasing force of the second elastic member causes the flange of the plug and the The part sandwiches the flange of the cylinder,
A cleaning adapter characterized by that. The cylinder gripping member rotates about a shaft inserted through the housing as an axis,
The first elastic member is a torsion spring wound around the shaft;
The torsion spring has one arm part in contact with the cylinder gripping member and the other arm part in contact with the housing.
The cleaning adapter according to claim 1.   The second elastic member is a coil spring wound around the plug, and one end of the coil spring is fixed to an upper lower surface of the housing, and the other end is provided at a lower end portion of the plug. The cleaning adapter according to claim 1, wherein the cleaning adapter is fixed to an upper surface of the flange. The plug also has a flange at the upper end,
The flange at the upper end contacts the casing when the plug slides with respect to the casing.
The cleaning adapter according to any one of claims 1 to 3, wherein the cleaning adapter is provided. The plug has a small diameter portion and a large diameter portion,
The small diameter portion is inserted through the housing;
The step portion between the small diameter portion and the large diameter portion is in contact with the housing.
The cleaning adapter according to any one of claims 1 to 4, wherein: The small-diameter portion has a non-circular cross section perpendicular to the axis of the plug,
The hole through which the plug provided in the housing is inserted is also non-circular,
The cleaning adapter according to any one of claims 1 to 5, wherein:

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