JP2015012947A - Device of removing stain on endoscopic lens surface - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device of removing stain on an endoscopic lens surface that easily and accurately removes stain on the endoscopic lens surface.SOLUTION: The device of removing stain on an endoscopic lens surface includes: a sheath 100 that is to be advanceably/retreatably inserted to a treatment tool channel of an endoscope and has opening windows 110 close to the distal end; a long wire 200 that is to be advanceably/retreatably inserted to the sheath 100 and has flexibility; handles 300 that can advance and retreat the wire 200 in an axial direction and are arranged at the proximal end of the wire 200; and brushes 400 that are extended obliquely from the vertical direction of the shaft of the wire 200 to the proximal end direction of the wire and arranged close to the distal end of the wire 200. Stain attached to the lens surface is removed by advancing and retreating the wire 200 in the axial direction.

Description

  The present invention relates to an endoscope lens surface dirt removing device that removes dirt adhered to a lens surface of an endoscope.

  Endoscopic devices are known as devices that can relieve pain given to a patient and allow easy observation of the inside of the body. Endoscopic devices can be used not only for in-vivo observation but also for in-vivo sample acquisition, and are effective means for early detection of cancer and the like.

  This endoscope lens surface may be contaminated with patient's body fluids, etc., especially in submucosal dissection, the endoscope lens surface is often clouded by vapor material from the living mucosa. There is a risk of perforation or bleeding.

  In order to remove this dirt, Patent Documents 1 and 2 describe an endoscope apparatus including a nozzle that supplies water to an endoscope lens surface. According to these patent documents, it is described that the field of view of the endoscope lens surface can be secured by ejecting water from the nozzle and washing and removing the dirt adhering to the endoscope lens.

Japanese Patent Laid-Open No. 2003-210388 JP 2011-245004 A

  However, in reality, it is difficult to sufficiently remove the dirt adhering to the endoscope lens surface by the water supply function. In order to remove the dirt on the endoscope lens surface remaining due to water supply, the endoscope inserted into the patient's body may be removed, the endoscope lens surface may be cleaned outside the body, and then the endoscope may be reinserted. It is possible, but in such a case, the mental and physical burdens of the patient and the operator are increased.

  The present invention has been made in view of such problems, and an endoscope lens surface capable of easily and accurately removing dirt on the endoscope lens surface without increasing the burden on the patient and the operator. An object of the present invention is to provide an apparatus for removing dirt.

  An endoscope lens surface dirt removing device according to the present invention is inserted into a treatment instrument channel of an endoscope so as to be able to advance and retract, and a sheath having an opening window in the vicinity of a distal end portion, and is inserted into the sheath so as to be able to advance and retract. An elongated wire having flexibility, a handle provided at the proximal end of the wire that can be advanced and retracted in the axial direction, and a base of the wire from a direction perpendicular to the axis of the wire. A brush provided in the vicinity of the distal end portion of the wire extending in an inclined direction toward the end portion, and the brush is moved by moving the wire in the axial direction with the handle. Dirt adhering to the lens surface by exposing the brush from the opening window to the lens surface of the endoscope by exposing the opening wire through the handle and retreating the wire in the axial direction with the handle. Excluding Characterized in that it.

  According to the present invention, dirt on the endoscope lens surface can be easily and accurately removed without increasing the burden on the patient and the operator.

It is a figure explaining the outline | summary of the dirt removal apparatus of the endoscope lens surface concerning Embodiment 1. FIG. It is a figure explaining the front-end | tip part vicinity of a sheath. It is a figure explaining the state which is making the brush contact | abut the lens surface of an endoscope. It is a figure explaining the dirt removal apparatus of the endoscope lens surface concerning Embodiment 2. FIG. It is a figure explaining the dirt removal apparatus of the endoscope lens surface concerning Embodiment 3. FIG. It is a photograph figure which shows the lens surface which the patient's bodily fluid adhered and became dirty. It is a figure explaining the state which is removing the stain | pollution | contamination of a lens surface using the dirt removal apparatus of an endoscope lens surface. It is a photograph figure which shows the lens surface after stain | pollution | contamination was removed.

  Hereinafter, embodiments of the present invention will be specifically described with reference to the accompanying drawings. However, the embodiments are for facilitating understanding of the principle of the present invention, and the scope of the present invention is as follows. The present invention is not limited to the embodiments, and other embodiments in which those skilled in the art appropriately replace the configurations of the following embodiments are also included in the scope of the present invention.

(Embodiment 1)
FIG. 1 is a diagram illustrating an outline of an endoscope lens surface dirt removing apparatus 900 according to the present embodiment. As shown in FIG. 1, the endoscope lens surface dirt removing apparatus 900 includes a sheath 100 that is inserted into a treatment instrument channel of an endoscope so as to be able to advance and retract, and a wire that is inserted into the sheath 100 so as to be able to advance and retract. 200, a handle 300 that can move the wire 200 back and forth in the axial direction, and a brush 400 provided in the vicinity of the tip of the wire 200. In FIG. 1, the distal end portion of the wire 200 is located closer to the proximal end portion of the wire 200 than the opening window 110.

  The sheath 100 is formed of, for example, a fluororesin tube or a tightly wound coil pipe. The diameter (outer diameter) of the sheath 100 is, for example, about 2 to 4.2 mm, and the total length is, for example, about 1 to 2 m. For example, when the diameter of the sheath 100 is 2 mm, the endoscope is a bronchoscope and an otolaryngological endoscope. When the diameter is 2.8 to 3.2 mm, the endoscope is a general-purpose upper and lower digestive tract endoscope. In the case of 3.7 mm to 4.2 mm, the endoscope is used when the endoscope is a treatment endoscope. A pair of opening windows 110 are provided in the vicinity of the distal end portion of the sheath 100.

  The wire 200 is long and flexible. As the wire 200, for example, a stranded wire formed by twisting a plurality of strands of stainless steel wire is used.

  The handle 300 is provided at the proximal end portion of the wire 200, and is configured such that a pair of rings are arranged on both sides so as to sandwich the wire 200.

  The brush 400 is made of a flexible plastic or a thin wire such as a platinum alloy containing stainless steel, platinum or iridium, and is formed by flocking these many thin wires.

  FIG. 2 is a diagram illustrating the vicinity of the distal end portion of the sheath 100. FIG. 2 shows a state in which the brush 400 is exposed from the opening window 110, and a pair of brushes 400 are arranged on both sides of the wire 200 so as to sandwich the wire 200. Since the pair of brushes 400 are arranged in this way and the pair of opening windows 110 are provided so as to correspond to the arrangement of the brushes 400, the flock formation of the brush 400 is ensured while ensuring the strength near the opening window 110 of the sheath 100. The degree of can be increased.

  As shown in FIG. 2, the opening window 110 has a substantially isosceles triangular shape having a vertex on the distal end side of the sheath. The brush 400 extends while being inclined from the direction perpendicular to the axis of the wire 200 toward the proximal end portion of the wire 200. The brush 400 is curved in a convex shape toward the proximal end side of the wire 200 along the longitudinal direction.

  Next, how the endoscope lens surface dirt removing apparatus 900 according to this embodiment is used will be described.

  In the state shown in FIG. 1, the distal end portion of the wire 200 is located closer to the proximal end portion of the wire 200 than the opening window 110, so that the brush 400 provided near the distal end portion of the wire 200 is , Folded within the sheath 100.

  Next, the wire 200 is advanced in the axial direction by the handle 300. As a result, the brush 400 is exposed from the opening window 110 as shown in FIG.

  Thereafter, the handle 200 is operated to retract the wire 200 in the axial direction, thereby bringing the brush 400 exposed from the opening window 110 into contact with the lens surface 500 of the endoscope as shown in FIG. Thereby, the dirt 510 adhering to the lens surface 500 can be removed.

  As described above, since the brush 400 is formed to be convexly curved toward the proximal end portion of the wire 200, not only the apex portion of the wire 200 but also the core wire portion can easily come into contact with the lens surface 500, and as a result, the brush The area where 400 abuts on the dirt 510 can be increased. In addition, since the opening window 110 has a substantially isosceles triangular shape as described above, when the wire 200 is retracted, the brush 400 is likely to come into contact with the dirt 510 in a state of spreading.

  As described above, according to the invention according to the present embodiment, the brush 400 is directly removed by being brought into contact with the dirt 510, so that it can be removed more effectively than by water supply. Further, since the sheath 100 can be inserted into the endoscope treatment tool channel and the dirt 510 on the lens surface 500 can be removed without removing the endoscope inserted into the patient's body, the mental state of the patient and the operator can be removed. And physical burden is hard to increase.

(Embodiment 2)
In the second embodiment, a mode in which the cleaning liquid is additionally used to further remove the dirt 510 will be described.

  FIG. 4 is a diagram for explaining an endoscope lens surface dirt removing apparatus 900 according to the second embodiment. As shown in FIG. 4, the elastic restoring member 600 is provided on the distal end side inside the sheath 100. The elastic restoring member 600 is a porous elastic restoring member containing a cleaning liquid.

  The cleaning liquid is not particularly limited as long as it is not harmful to the human body and has a cleaning power against dirt such as a patient's body fluid. For example, n-alkylbenzenesulfonate, polyoxyethylene A cleaning solution containing an alkyl ether, ethyl alcohol or the like is preferred.

  The endoscope lens surface dirt removing apparatus 900 according to the present embodiment is used by causing the handle 200 to advance the wire 200 in the axial direction so that the tip of the wire 200 is pressed against the elastic restoring member 600. . As a result, the cleaning liquid is oozed out from the elastic restoring member 600 and the oozed cleaning liquid is adhered to the brush 400. With the brush 400 to which the cleaning liquid is attached, the dirt 510 attached to the lens surface 500 can be efficiently removed.

(Embodiment 3)
In the third embodiment, as in the second embodiment, a mode in which the cleaning liquid is additionally used to further remove the dirt 510 will be described.

  FIG. 5 is a diagram for explaining an endoscope lens surface dirt removing apparatus 900 according to the third embodiment. As shown in FIG. 5, the cleaning liquid holding material 700 is annularly provided inside the sheath 100 on the proximal end side of the sheath with respect to the opening window 110. The cleaning liquid holding material 700 can be used without particular limitation as long as the cleaning liquid is impregnated and held, and is formed of, for example, a nonwoven fabric impregnated with the cleaning liquid.

  The endoscope lens surface dirt removing apparatus 900 according to the present embodiment causes the brush 400 to contact the cleaning liquid holding material 700 by moving the wire 200 in the axial direction with the handle 300, thereby supplying the cleaning liquid to the brush 400. Adhere. With the brush 400 to which the cleaning liquid is attached, the dirt 510 attached to the lens surface 500 can be efficiently removed.

(Other embodiments)
In the second embodiment described above, the elastic restoring member 600 containing the cleaning liquid is provided on the distal end side inside the sheath 100. However, the present invention is not limited to such an embodiment. It is also possible to provide a closing part in which the inside of the tube is closed on the tip part side of the window 110 and to enclose the cleaning liquid between the tip part and the closing part of the sheath 100. In such a case, the handle 200 is operated to advance the wire 200 in the axial direction, the closed portion is broken at the tip of the wire 200, and the cleaning liquid is attached to the brush 400.

  Further, for example, the cleaning liquid itself can be positioned on the distal end side inside the sheath 100 with the surface tension of the cleaning liquid.

  Also, in endoscopic procedures, a tip hood may be attached to the tip of the endoscope to support the control of the treatment tool and ensure an appropriate field of view. It is also possible to remove it.

  An Olympus system medical net forceps was used as the sheath 100. As the brush 400, a super-sized false eyelash from Daiso Sangyo Co., Ltd. was used, and attached to the vicinity of the tip of the wire 200 with an instantaneous adhesive. The length of the brush 400 was 15 mm. A pair of open windows in the shape of an isosceles triangle was formed at a position moved from the distal end portion of the sheath 100 toward the proximal end portion of the wire by about 20 mm.

  Using the endoscope lens surface dirt removing apparatus 900 created in this way, an attempt was made to clean the lens surface 500 which was contaminated by the patient's body fluid. FIG. 6 is a photograph showing a lens surface contaminated with a patient's bodily fluid, showing a state in which the lens surface is clouded by a vapor substance from a biological mucosa in submucosal dissection.

  FIG. 7 is a diagram illustrating a state in which dirt on the lens surface is removed using the dirt removing device for an endoscope lens surface. As shown in FIG. 7, the operation of repeatedly moving the wire 200 in the axial direction and the retreating operation in the axial direction with the handle 300 and repeatedly bringing the brush 400 exposed from the opening window 110 into contact with the lens surface 500 of the endoscope is repeated. It was.

  FIG. 8 is a photograph showing the lens surface after the dirt has been removed. As shown in FIG. 8, according to the present invention, the brush 400 is brought into direct contact with the lens surface 500 of the endoscope, so that it is possible to effectively remove dirt.

  It can be used to remove dirt on the lens surface of an endoscope apparatus.

DESCRIPTION OF SYMBOLS 100: Sheath 110: Opening window 200: Wire 300: Handle 400: Brush 500: Lens surface 510: Dirt 600: Elasticity restoration member 700: Cleaning liquid holding material 900: Dirt removal apparatus for endoscope lens surface

Claims (7)

A sheath having an opening window in the vicinity of the distal end portion, which is inserted into a channel for a treatment instrument of an endoscope so as to freely advance and retract;
A flexible long wire that is inserted into the sheath so as to freely advance and retract;
A handle provided at the proximal end of the wire, the wire being able to be advanced and retracted in the axial direction;
A brush provided in the vicinity of the distal end portion of the wire, extending from the vertical direction of the wire axis toward the proximal end portion direction of the wire.
The brush is exposed from the opening window by operating the wire in the axial direction with the handle, and the brush exposed from the opening window is operated by retreating the wire in the axial direction with the handle. An endoscope lens surface dirt removing device that removes dirt adhering to the lens surface by contacting the lens surface of the endoscope. A resilient restoring member having porosity containing a cleaning liquid is provided on the distal end side inside the sheath,
By advancing operation of the wire in the axial direction with the handle, the tip of the wire is pressed against the elastic restoring member to exude the cleaning liquid from the elastic restoring member, and the exuded cleaning liquid is The endoscope lens surface dirt removing device according to claim 1, wherein the device is attached to a brush. The cleaning liquid holding material impregnated with the cleaning liquid is provided in an annular shape inside the sheath on the proximal end side of the sheath from the opening window,
The endoscope lens surface according to claim 1, wherein the brush is brought into contact with the cleaning liquid holding material and the cleaning liquid adheres to the brush by advancing operation of the wire in the axial direction with the handle. Dirt remover. The sheath is provided with a closed portion in which the inside of the tube is closed on the distal end side of the opening window, and a cleaning liquid is sealed between the distal end portion of the sheath and the closed portion,
The said cleaning liquid adheres to the said brush by destroying the said closure part in the front-end | tip part of the said wire by advancing operation of the said wire in the axial direction with the said handle. A device for removing dirt from an endoscope lens surface.   The endoscope lens surface dirt removing device according to any one of claims 1 to 4, wherein a pair of the brushes are disposed on both sides of the brush so as to sandwich the wire.   The said brush is curving convexly toward the base end part side of the said wire along the longitudinal direction, The dirt removal of the endoscope lens surface of any one of Claim 1 thru | or 5 characterized by the above-mentioned. apparatus.   The endoscope lens surface contamination removing apparatus according to any one of claims 1 to 6, wherein the opening window has a substantially isosceles triangular shape having a vertex on the distal end side of the sheath. .