JP2017202128A - Endoscope washing brush - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an endoscope washing brush capable of easily washing a conduit line communicating from a base end side to the tip of an insertion part of an endoscope.SOLUTION: An endoscope washing brush includes a base part, a linear member extending from the base part, a first brush part provided on the outer periphery of a part of the linear member, and a second brush part provided on the periphery on the tip side of the linear member compared with the first brush part, with a diameter smaller than that of the first brush part. Preferably, the linear member includes a large diameter part to which the first brush part is provided, and a small diameter part with a smaller diameter than the large diameter part in a plane orthogonal to the direction in which the linear member extends, to which the second brush part is provided.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an endoscope cleaning brush.

  An endoscope that is inserted into a subject and diagnoses the subject includes a suction line, an air supply / water supply line, and a treatment instrument insertion that communicates from the proximal end side to the distal end of an insertion portion that is inserted into the subject. It is equipped with various pipes such as common pipes. There are cases where blood, mucus, secretory fluid, etc. of a patient enters these ducts at the time of diagnosis by an endoscope. For this reason, after performing an endoscopic diagnosis, it is necessary to sufficiently wash these ducts using a brush in order to prevent the spread of infectious diseases.

  For example, Patent Document 1 discloses an endoscope cleaning brush in which two brushes having different diameters are provided at both ends of a base material for cleaning a treatment instrument insertion conduit. In this endoscope cleaning brush, the large-diameter cleaning brush provided at one end is used to clean the conduit near the treatment instrument insertion port, and the distal-end side conduit is cleaned using a small-diameter cleaning brush provided at the other end. By doing so, the entire treatment instrument insertion conduit can be cleaned with one endoscope cleaning brush.

International Publication No. 2010/067808

  However, when cleaning the treatment instrument insertion conduit using the endoscope cleaning brush described in Patent Document 1, the large or small diameter cleaning brush is pulled out from the treatment instrument insertion conduit, and the other cleaning is performed. There was a problem that it took time to insert the brush into the treatment instrument insertion conduit again.

  This invention is made | formed in view of the above, Comprising: It aims at providing the brush for endoscope washing | cleaning which can wash | clean the pipe line of an endoscope easily.

  In order to solve the above-described problems and achieve the object, an endoscope cleaning brush according to one aspect of the present invention includes a base, a linear member extending from the base, and a part of the linear member. A first brush portion provided on the outer periphery of the first brush portion, and a second brush portion provided on the outer periphery of the linear member on the distal end side of the first brush portion and having a smaller diameter than the first brush portion; It is characterized by providing.

  In the endoscope cleaning brush according to one aspect of the present invention, the linear member includes a large-diameter portion provided with the first brush portion and the second brush portion, and the wire And a small-diameter portion having a smaller diameter than the large-diameter portion in a plane perpendicular to the extending direction of the member.

  In the endoscope cleaning brush according to one aspect of the present invention, the length of the small-diameter portion is longer than any one of the suction conduit, the air / water supply conduit, and the treatment instrument insertion conduit. Characterized by its long length.

  The endoscope cleaning brush according to one aspect of the present invention is characterized in that the linear member is detachable from a portion including the first brush portion or the second brush portion.

  In the endoscope cleaning brush according to one aspect of the present invention, the linear member is detachable by attaching a portion including the first brush portion or the second brush portion by screwing. It is characterized by being.

  In the endoscope cleaning brush according to an aspect of the present invention, the linear member includes a length adjusting mechanism that adjusts a length in a direction in which the linear member extends.

  In the endoscope cleaning brush according to one aspect of the present invention, the linear member includes a tubular member provided with the first brush part and a second brush part, and the tubular member is provided with the tubular member. A rod-shaped member inserted through the member, and the length adjusting mechanism fixes the position of the linear member by fixing the position of the rod-shaped member in a state in which the length of the rod-shaped member protruding from the tubular member is adjusted. It has a fixing mechanism for adjusting the length.

  In the endoscope cleaning brush according to one aspect of the present invention, the linear member is provided with an index indicating the length of the linear member.

  ADVANTAGE OF THE INVENTION According to this invention, the endoscope cleaning brush which can wash | clean the pipe line of an endoscope easily is realizable.

FIG. 1 is a schematic diagram showing a configuration of an endoscope cleaning brush according to an embodiment of the present invention. FIG. 2 is a schematic diagram showing a state in which the endoscope is cleaned using the endoscope cleaning brush shown in FIG. FIG. 3 is an enlarged partial cross-sectional view of the tip of the small diameter portion of the endoscope cleaning brush according to the first modification of the embodiment. FIG. 4 is an enlarged partial cross-sectional view of the tip of the small diameter portion of the endoscope cleaning brush according to the second modification of the embodiment. FIG. 5 is an enlarged schematic view of the tip of the small-diameter portion of the endoscope cleaning brush according to Modification 3 of the embodiment. FIG. 6 is an enlarged schematic view of the tip of the small-diameter portion of the endoscope cleaning brush according to Modification 4 of the embodiment. FIG. 7 is an enlarged schematic view of the tip of the small diameter portion of the endoscope cleaning brush according to the fifth modification of the embodiment. FIG. 8 is an enlarged partial cross-sectional view of a connecting portion between a large diameter portion and a small diameter portion of an endoscope cleaning brush according to Modification 6 of the embodiment. FIG. 9 is an enlarged partial cross-sectional view of a connecting portion between a large diameter portion and a small diameter portion of an endoscope cleaning brush according to Modification 7 of the embodiment. FIG. 10 is an enlarged side view of a connecting portion between a large diameter portion and a small diameter portion of an endoscope cleaning brush according to Modification 7 of the embodiment. FIG. 11 is an enlarged partial cross-sectional view of a connecting portion between a large diameter portion and a small diameter portion of an endoscope cleaning brush according to Modification 8 of the embodiment. FIG. 12 is an enlarged partial cross-sectional view of a connecting portion between a large diameter portion and a small diameter portion of an endoscope cleaning brush according to Modification 9 of the embodiment. FIG. 13 is a view corresponding to the cross section taken along the line AA of FIG. FIG. 14 is an enlarged partial cross-sectional view of a connecting portion between a large diameter portion and a small diameter portion of an endoscope cleaning brush according to Modification 10 of the embodiment.

  Embodiments of an endoscope cleaning brush according to the present invention will be described below with reference to the drawings. Note that the present invention is not limited to these embodiments. In the following embodiments, an endoscope cleaning brush used for cleaning an endoscope suction line, an air / water supply line, and a treatment instrument insertion line will be described as an example. Can be applied to general endoscope cleaning brushes used for cleaning various conduits communicating from the proximal end side of the endoscope to the distal end of the insertion portion.

  In the description of the drawings, the same or corresponding elements are denoted by the same reference numerals as appropriate. It should be noted that the drawings are schematic, and the relationship between the dimensions of each element, the ratio of each element, and the like may differ from the actual situation. Even between the drawings, there are cases in which portions having different dimensional relationships and ratios are included.

(Embodiment)
FIG. 1 is a schematic diagram showing a configuration of an endoscope cleaning brush according to an embodiment of the present invention. As shown in FIG. 1, an endoscope cleaning brush 1 according to the present embodiment includes a base 2 that is a part that a user grips, a linear member 3 that extends from the base 2, and a linear member 3. A large-diameter brush portion 4 as a first brush portion and a small-diameter brush portion 5 as a second brush portion provided on a part of the outer periphery. In the following description, the base 2 side is defined as the base end side, and the side opposite to the base 2 (small diameter brush portion 5 side) is defined as the distal end side.

  The linear member 3 is a long linear member having a circular cross section, and includes a large-diameter portion 3a provided on the base 2 side, and a small-diameter portion 3b provided on the tip side from the large-diameter portion 3a. It consists of. However, the cross-sectional shape of the linear member 3 is not limited to a circle. The length of the linear member 3 is longer than the pipe line to be cleaned.

  A large-diameter brush portion 4 is provided on the outer periphery of the large-diameter portion 3a. The length of the large-diameter portion 3a is sufficient if it is long enough to clean the portion having a large diameter near the entrance of the pipe to be cleaned by the large-diameter brush portion 4, and is several centimeters, for example.

  A small-diameter brush portion 5 is provided on the outer periphery of the small-diameter portion 3b. The length of the small diameter part 3b should just be sufficient length to make the small diameter brush part 5 protrude from the front-end | tip of the pipe line to wash | clean. The length of the small diameter portion 3b is, for example, longer than the length of the conduit to be cleaned, and is, for example, about several tens of centimeters to several hundreds of centimeters. The small diameter portion 3b has a smaller diameter than the large diameter portion 3a in a plane orthogonal to the direction in which the linear member 3 extends. The connecting portion between the large diameter portion 3a and the small diameter portion 3b may be tapered as the diameter decreases from the large diameter portion 3a to the small diameter portion 3b as shown in FIG. It is not limited.

  The large-diameter brush portion 4 is provided on the outer periphery of the large-diameter portion 3a, and has a brush projecting radially from the large-diameter portion 3a. In the plane orthogonal to the direction in which the linear member 3 extends, the diameter of the brush of the large-diameter brush portion 4 (diameter formed by the outer periphery of the brush) is, for example, 5 mm, but depending on the diameter of the conduit to be cleaned It can be changed as appropriate.

  The small-diameter brush portion 5 is provided on the outer periphery of the small-diameter portion 3b on the tip side of the large-diameter portion 3a, and has a brush projecting radially from the small-diameter portion 3b. In the plane orthogonal to the direction in which the linear member 3 extends, the diameter of the brush of the small diameter brush portion 5 (the diameter formed by the outer periphery of the brush) is smaller than that of the large diameter brush portion 4, for example, 1 mm to 2 mm. Depending on the diameter of the conduit to be cleaned, it can be appropriately changed.

  FIG. 2 is a schematic diagram showing a state in which the endoscope is cleaned using the endoscope cleaning brush shown in FIG. As shown in FIG. 2, the endoscope 10 has a suction port 11, an air / water supply port 12, a treatment instrument insertion port 13, and an opening 14.

  The suction port 11 is an entrance of a suction conduit that communicates from the suction port 11 to the opening 14. The suction line communicates from the suction port 11 to a suction port of a connector portion (not shown) provided on the base end side. The suction pipe is a pipe for sucking liquid, air, or the like in the subject at the time of diagnosis using the endoscope 10, and suction can be performed by connecting a suction pump to the suction base. When the endoscope 10 is used, a suction button is attached to the suction port 11. However, when the endoscope 10 is cleaned, the suction button is removed and the endoscope cleaning brush 1 is inserted into the suction port 11. And wash.

  The air / water supply port 12 is an entrance of an air / water supply conduit that communicates from the air / water supply port 12 to a nozzle (not shown) provided on the tip side. The air / water supply conduit communicates from the air / water supply port 12 to an air / water supply base of a connector portion (not shown) provided on the base end side. The air / water supply conduit is a conduit for supplying or supplying water into the subject at the time of diagnosis using the endoscope 10, and by connecting an air supply pump or a water supply pump to the air / water supply base. Air supply or water supply can be performed. When the endoscope 10 is used, an air / water supply button is attached to the air / water supply port 12. However, when the endoscope 10 is washed, the air / water supply button is removed and the air / water supply port 12 is opened. The endoscope cleaning brush 1 is inserted and cleaned.

  The treatment instrument insertion port 13 is an entrance of a treatment instrument insertion conduit that extends from the treatment instrument insertion opening 13 to the opening 14. The treatment instrument insertion conduit is a conduit for guiding the distal end of the treatment instrument to the distal end of the endoscope 10 in order to perform treatment using a treatment instrument such as forceps at the time of diagnosis using the endoscope 10. . When the endoscope 10 is cleaned, the endoscope cleaning brush 1 is inserted into the treatment instrument insertion port 13 for cleaning.

  Next, a method for cleaning the endoscope 10 using the endoscope cleaning brush 1 will be described. Here, a method of cleaning the treatment instrument insertion conduit of the endoscope 10 using the endoscope cleaning brush 1 will be described, but the suction conduit and the air / water supply conduit are also cleaned in the same manner. The description is omitted.

  First, the user inserts the endoscope cleaning brush 1 into the treatment instrument insertion port 13 from the small diameter brush portion 5 side. Then, the small diameter brush part 5 advances in the treatment instrument insertion conduit toward the tip while cleaning the inner wall of the treatment instrument insertion conduit. At this time, since the diameter of the large diameter portion 3a is increased, the large diameter portion 3a is prevented from buckling when the endoscope cleaning brush 1 is inserted into the treatment instrument insertion conduit. ing. Since the small diameter portion 3 b is longer than the treatment instrument insertion conduit, the small diameter brush section 5 protrudes from the opening 14 before the large diameter brush section 4 reaches the treatment instrument insertion port 13.

  Subsequently, the user cleans the small-diameter brush portion 5 protruding from the opening portion 14 with a finger and removes dirt.

  Thereafter, the user further inserts the endoscope cleaning brush 1 into the treatment instrument insertion conduit. Then, the large diameter brush part 4 is inserted into the treatment instrument insertion port 13. At this time as well, since the diameter of the large diameter portion 3a is increased, the large diameter portion 3a is prevented from buckling when the large diameter portion 3a is inserted into the treatment instrument insertion conduit. ing. Then, the user holds the base 2, rotates the endoscope cleaning brush 1 once in the treatment instrument insertion conduit, and cleans the conduit near the treatment instrument insertion port 13 with the large diameter brush portion 4.

  Subsequently, the user grasps the base 2 and pulls out the endoscope cleaning brush 1 from the treatment instrument insertion conduit. Further, the user cleans the large-diameter brush portion 4 with a finger and removes dirt. The series of operations described above is repeated several times until the dirt is removed, and the cleaning is completed.

  As described above, according to the embodiment, since the large-diameter brush portion 4 and the small-diameter brush portion 5 are continuously provided in the same direction with respect to the base portion 2, the pipe line can be cleaned without replacing the brush. It can be carried out. Therefore, the endoscope cleaning brush 1 is an endoscope cleaning brush that can easily clean the pipe line of the endoscope.

  The endoscope cleaning brush 1 may be reusable by performing an appropriate process such as immersing in a cleaning liquid, or may be a disposable one that is discarded every time it is used.

(Modification 1)
FIG. 3 is an enlarged partial cross-sectional view of the tip of the small diameter portion of the endoscope cleaning brush according to the first modification of the embodiment. As shown in FIG. 3, the small-diameter portion 3Ab of the endoscope cleaning brush according to Modification 1 includes a screw portion 3Aba provided at the tip of the small-diameter portion 3Ab and a screw hole portion 3Abb that can be screwed into the screw portion 3Aba. And a tip portion 3Abc fixed to the screw hole 3Abb and provided with the small-diameter brush portion 5.

  In the endoscope cleaning brush according to the first modification, the part including the small-diameter brush part 5 is attached and detached by the attaching / detaching mechanism including the screw part 3Aba and the screw hole part 3Abb. Yes. Therefore, in this endoscope cleaning brush, the small-diameter brush portion 5 having an appropriate brush diameter can be attached and cleaned in accordance with the diameter of the conduit to be cleaned.

(Modification 2)
FIG. 4 is an enlarged partial cross-sectional view of the tip of the small diameter portion of the endoscope cleaning brush according to the second modification of the embodiment. As shown in FIG. 4, the small diameter portion 3Bb of the endoscope cleaning brush according to the modified example 2 includes a screw hole portion 3Bba provided at the tip of the small diameter portion 3Bb and a screw portion that can be screwed into the screw hole portion 3Bba. 3Bbb and a tip portion 3Bbc fixed to the screw portion 3Bbb and provided with a small-diameter brush portion 5. As in Modification 2, the screw portion and the screw hole may be arranged oppositely to Modification 1.

(Modification 3)
FIG. 5 is an enlarged schematic view of the tip of the small-diameter portion of the endoscope cleaning brush according to Modification 3 of the embodiment. FIG. 5 shows a side view of the cutout portion 3Cba from the left, a view of the cutout portion 3Cba as seen from the distal end side, a view of the fitting portion 3Cbb as seen from the proximal end side, and a side view of the fitting portion 3Cbb. As shown in FIG. 5, the small diameter portion 3Cb of the endoscope cleaning brush according to the modified example 3 is provided at the tip of the small diameter portion 3Cb, and the notch 3Cba having a cylindrical shape in side view and the tip is spherical. There is a fitting portion 3Cbb that can be fitted into the notch portion 3Cba, and a tip portion 3Cbc that is fixed to the fitting portion 3Cbb and provided with the small-diameter brush portion 5. Further, the cutout portion 3Cba and the fitting portion 3Cbb are made of magnets that attract each other, or one is made of a magnet and the other is made of a magnetic material.

  In the endoscope cleaning brush according to the modified example 3, the portion including the small-diameter brush portion 5 is attached and detached by the attaching / detaching mechanism including the notch portion 3Cba and the fitting portion 3Cbb. Yes. Therefore, in this endoscope cleaning brush, the small-diameter brush portion 5 having an appropriate brush diameter can be attached and cleaned in accordance with the diameter of the conduit to be cleaned.

(Modification 4)
FIG. 6 is an enlarged schematic view of the tip of the small-diameter portion of the endoscope cleaning brush according to Modification 4 of the embodiment. FIG. 6 is a side view of the cutout portion 3Dba from the left, a view of the cutout portion 3Dba viewed from the distal end side, a view of the fitting portion 3Dbb viewed from the proximal end side, and a side view of the fitting portion 3Dbb. As shown in FIG. 6, the small-diameter portion 3Db of the endoscope cleaning brush according to the modification 4 is provided at the tip of the small-diameter portion 3Db, and the notch 3Dba whose side view is rectangular and the tip is plate-like. Yes, it has a fitting part 3Dbb that can be fitted into the notch part 3Dba, and a tip part 3Dbc on which the small-diameter brush part 5 is provided. Further, the cutout portion 3Dba and the fitting portion 3Dbb are made of magnets that attract each other, or one is made of a magnet and the other is made of a magnetic material. Like the modification 4, the shape of notch part 3Dba and fitting part 3Dbb is not specifically limited.

(Modification 5)
FIG. 7 is an enlarged schematic view of the tip of the small diameter portion of the endoscope cleaning brush according to the fifth modification of the embodiment. 7 shows a side view of the fitting groove 3Eba from the left, a view of the fitting groove 3Eba as seen from the distal end side, a view of the fitting portion 3Ebb as seen from the proximal end side, and a side view of the fitting portion 3Ebb. As shown in FIG. 7, the small diameter portion 3Eb of the endoscope cleaning brush according to the modified example 5 has a fitting groove 3Eba provided at the tip of the small diameter portion 3Eb and a fitting that can be fitted into the fitting groove 3Eba. It has a joint part 3Ebb and a tip part 3Ebc on which a small diameter brush part 5 is provided. In this endoscope cleaning brush, the fitting portion 3Ebb is inserted into the fitting groove 3Ebb so that the convex portions protruding on both sides of the fitting portion 3Ebb match the concave portions of the fitting groove 3Eba, and the fitting portion 3Ebb is inserted. When the tip of the contact portion comes into contact with the innermost part of the fitting groove 3Eba, the fitting portion 3Ebb and the fitting groove 3Eba are fitted by rotating the fitting portion 3Ebb by 90 degrees. As in Modification 5, the configuration of the attachment / detachment mechanism is not particularly limited.

  In addition, although the modification 1-the modification 5 mentioned above demonstrated the structure which can attach or detach the part containing the small diameter brush part 5 at the front-end | tip of a small diameter part, it is not restricted to this. For example, the connecting portion between the large diameter portion and the small diameter portion may be detachable. In this case, the length of the linear member 3 can be adjusted by changing the length of the small diameter portion. Further, the base end side of the large diameter portion may be detachable, and the large diameter brush portion 4 may be replaceable.

(Modification 6)
FIG. 8 is an enlarged partial cross-sectional view of a connecting portion between a large diameter portion and a small diameter portion of an endoscope cleaning brush according to Modification 6 of the embodiment. As shown in FIG. 8, the large-diameter portion 3Fa of the endoscope cleaning brush according to Modification 6 is a tubular member that has a screw hole portion 3Faa and into which the small-diameter portion 3Fb is inserted. The small diameter portion 3Fb is a rod-like member having a plurality of screw portions 3Fba provided along the direction in which the linear member 3 extends. In this endoscope cleaning brush, the length adjusting mechanism has a fixing mechanism including a screw hole portion 3Faa and a screw portion 3Fba. The fixing mechanism adjusts the length of the linear member 3 in the direction in which the linear member 3 extends by fixing the position of the linear member 3 in a state where the length of the small diameter portion 3Fb protruding from the large diameter portion 3Fa is adjusted. . As a result, with this endoscope cleaning brush, the length of the linear member 3 can be adjusted according to the length of the conduit to be cleaned.

(Modification 7)
FIG. 9 is an enlarged partial cross-sectional view of a connecting portion between a large diameter portion and a small diameter portion of an endoscope cleaning brush according to Modification 7 of the embodiment. As shown in FIG. 9, the large-diameter portion 3Ga of the endoscope cleaning brush according to the modified example 7 includes a screw hole portion 3Gaa and a screw portion 3Gab that can be screwed into the screw hole portion 3Gaa. This is a tubular member through which the small diameter portion 3Gb is inserted. The small diameter portion 3Gb is a rod-shaped member. In this endoscope cleaning brush, the distal end of the screw portion 3Gab screwed into the screw hole portion 3Gaa presses the small diameter portion 3Gb, so that the relative positions of the large diameter portion 3Ga and the small diameter portion 3Gb are fixed. . In this endoscope cleaning brush, the length adjusting mechanism has a fixing mechanism including a screw hole portion 3Gaa and a screw portion 3Gab. The fixing mechanism adjusts the length of the linear member 3 in the direction in which the linear member 3 extends by fixing the position of the linear member 3 in a state where the length of the small diameter portion 3Gb protruding from the large diameter portion 3Ga is adjusted. . Like the modification 7, the structure of a length adjustment mechanism and a fixing mechanism is not specifically limited.

  The linear member 3 may be provided with an index used when the length adjusting mechanism adjusts the length. FIG. 10 is an enlarged side view of a connecting portion between a large diameter portion and a small diameter portion of an endoscope cleaning brush according to Modification 7 of the embodiment. As shown in FIG. 10, in this endoscope cleaning brush, the small diameter portion 3Gb is provided with an index M, and the linear member is adjusted by adjusting the length by which the small diameter portion 3Gb protrudes from the large diameter portion 3Ga. The overall length of 3 can be adjusted. The configuration of the index M is not particularly limited, and may be, for example, a triangle shape, a groove, a hole, or the like.

  Moreover, the groove | channel in which the front-end | tip of the screw part 3Gab fits may be formed in the small diameter part 3Gb. By forming the groove, it is possible to prevent relative displacement between the large diameter portion 3Ga and the small diameter portion 3Gb.

(Modification 8)
FIG. 11 is an enlarged partial cross-sectional view of a connecting portion between a large diameter portion and a small diameter portion of an endoscope cleaning brush according to Modification 8 of the embodiment. As shown in FIG. 11, the large-diameter portion 3Ha of the endoscope cleaning brush according to the modified example 8 has a plurality of holes 3Haa provided along the direction in which the linear member 3 extends, and has a small diameter inside. This is a tubular member through which the portion 3Hb is inserted. The small diameter portion 3Hb is a rod-like member having a hole 3Hba, a protruding portion 3Hbb that can protrude from the hole 3Hba, and a spring 3Hbc that biases the protruding portion 3Hbb outward. In this endoscope cleaning brush, the relative position between the large diameter portion 3Ha and the small diameter portion 3Hb is fixed by fitting the protruding portion 3Hbb into any one of the holes 3Haa. In this endoscope cleaning brush, the length adjusting mechanism has a fixing mechanism including a hole 3Haa and a protruding portion 3Hbb. The fixing mechanism adjusts the length of the linear member 3 in the direction in which the linear member 3 extends by fixing the position of the linear member 3 in a state where the length of the small diameter portion 3Hb protruding from the large diameter portion 3Ha is adjusted. .

(Modification 9)
FIG. 12 is an enlarged partial cross-sectional view of a connecting portion between a large diameter portion and a small diameter portion of an endoscope cleaning brush according to Modification 9 of the embodiment. As shown in FIG. 12, the large-diameter portion 3Ia of the endoscope cleaning brush according to the modification 9 includes a screw portion 3Iaa formed on the outer periphery of the large-diameter portion 3Ia and a joint portion that can be screwed to the screw portion 3Iaa. 3Iab, and a small-diameter portion 3Ib is inserted into the tubular member. The large diameter portion 3Ia is a rod-shaped member. In this endoscope cleaning brush, by screwing the joint portion 3Iab to the screw portion 3Iaa, the inner peripheral surface at the tip of the screw portion 3Iaa grips the small diameter portion 3Ib, and the large diameter portion 3Ia and the small diameter portion 3Ib The relative position is fixed. In this endoscope cleaning brush, the length adjusting mechanism has a fixing mechanism including a screw portion 3Iaa and a joint portion 3Iab. The fixing mechanism adjusts the length of the linear member 3 in the direction in which the linear member 3 extends by fixing the position of the linear member 3 in a state where the length of the small diameter portion 3Ib protruding from the large diameter portion 3Ia is adjusted. .

  FIG. 13 is a view corresponding to the cross section taken along the line AA of FIG. As shown in FIG. 13, grooves that mesh with each other may be provided on the inner peripheral surface of the tip of the screw portion 3Iaa and the outer peripheral surface of the small diameter portion 3Ib. By this groove, relative rotation between the large diameter portion 3Ia and the small diameter portion 3Ib is prevented, and displacement between the large diameter portion 3Ia and the small diameter portion 3Ib is prevented.

(Modification 10)
FIG. 14 is an enlarged partial cross-sectional view of a connecting portion between a large diameter portion and a small diameter portion of an endoscope cleaning brush according to Modification 10 of the embodiment. As shown in FIG. 14, the large-diameter portion 3Ja of the endoscope cleaning brush according to the modified example 10 has a plurality of concave portions 3Jaa provided along the direction in which the linear member 3 extends, and has a small diameter inside. This is a tubular member through which the portion 3Jb is inserted. The small diameter portion 3Jb is a rod-shaped member having a plurality of spherical portions 3Jba provided along the direction in which the linear member 3 extends. In this endoscope cleaning brush, the spherical portion 3Jba is fitted into the recess 3Jaa, so that the relative positions of the large diameter portion 3Ja and the small diameter portion 3Jb are fixed. Further, in this endoscope cleaning brush, when the large-diameter portion 3Ja has elasticity and a force along the direction in which the linear member 3 extends is applied to the small-diameter portion 3Jb, the spherical portion 3Jba comes off from the concave portion 3Jaa, The length by which the small diameter portion 3Jb protrudes from the large diameter portion 3Ja can be changed.

  In addition, in the above-described modified examples 6 to 10, the configuration in which the length adjusting mechanism is provided in the connection portion between the large diameter portion and the small diameter portion has been described, but the configuration is not limited thereto. For example, the length adjusting mechanism may be provided in a part of the small diameter portion.

  Further effects and modifications can be easily derived by those skilled in the art. Thus, the broader aspects of the present invention are not limited to the specific details and representative embodiments shown and described above. Accordingly, various modifications can be made without departing from the spirit or scope of the general inventive concept as defined by the appended claims and their equivalents.

DESCRIPTION OF SYMBOLS 1 Endoscope cleaning brush 2 Base part 3 Linear member 3a, 3Fa, 3Ga, 3Ha, 3Ia, 3Ja Large diameter part 3b, 3Ab, 3Bb, 3Cb, 3Db, 3Eb, 3Fb, 3Gb, 3Hb, 3Ib, 3Jb Small diameter part 3Aba, 3Bbb, 3Fba, 3Gab, 3Iaa Screw part 3Abb, 3Bba, 3Faa, 3Gaa Screw hole part 3Abc, 3Bbc, 3Cbc, 3Dbc, 3Ebc Tip part 3Cba, 3Dba Notch part 3Eba Fitting groove 3Cbb, 3Db part 3Cbb, 3Db part 3Hba hole 3Hbb protrusion 3Hbc spring 3Iab joint 3Jaa recess 3Jba spherical part 4 large diameter brush part 5 small diameter brush part 10 endoscope 11 suction port 12 air supply / water supply port 13 treatment instrument insertion port 14 opening M index

Claims (8)

The base,
A linear member extending from the base;
A first brush portion provided on an outer periphery of a part of the linear member;
A second brush portion that is provided on the outer periphery on the tip side of the linear member than the first brush portion, and has a smaller diameter than the first brush portion;
An endoscope cleaning brush characterized by comprising:   The linear member is provided with a large-diameter portion provided with the first brush portion and a second brush portion, and in a plane orthogonal to a direction in which the linear member extends, than the large-diameter portion. The endoscope cleaning brush according to claim 1, further comprising a small-diameter small-diameter portion.   The length of the small diameter portion is longer than any one of the suction pipe, the air / water supply pipe, and the treatment instrument insertion pipe, according to claim 2, brush.   The endoscope cleaning brush according to any one of claims 1 to 3, wherein a part of the linear member including the first brush portion or the second brush portion is detachable.   The endoscope for cleaning an endoscope according to claim 4, wherein the linear member is detachable by attaching a portion including the first brush portion or the second brush portion by screwing. brush.   The brush for endoscope cleaning according to any one of claims 1 to 5, wherein the linear member has a length adjusting mechanism that adjusts a length in a direction in which the linear member extends. . The linear member includes a tubular member provided with the first brush portion, and a rod-like member provided with the second brush portion and inserted through the tubular member,
The length adjusting mechanism includes a fixing mechanism that adjusts the length of the linear member by fixing the position of the linear member in a state in which the length in which the rod-shaped member protrudes from the tubular member is adjusted. The endoscope cleaning brush according to claim 6.   The endoscope cleaning brush according to claim 6 or 7, wherein the linear member is provided with an index indicating a length of the linear member.

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