WO2017006684A1

WO2017006684A1 - Lens cleaner for endoscope

Info

Publication number: WO2017006684A1
Application number: PCT/JP2016/066861
Authority: WO
Inventors: 創坂田
Original assignee: 株式会社カネカ
Priority date: 2015-07-07
Filing date: 2016-06-07
Publication date: 2017-01-12

Abstract

This first lens cleaner for an endoscope is provided with: an elastically deformable long member; and a cleaning member affixed to the outer peripheral surface of the distal end section of the long member. The long member has a bent section on the distal end side thereof. The cleaning member is configured so that, when the long member is inserted through a treatment instrument insertion channel in the endoscope and protrudes from the distal end of the endoscope, an envelope line of the cleaning member, the envelope line being located on the lens surface side of the endoscope, has a portion not parallel to a plane perpendicular to the axial direction of the endoscope. Further, this second lens cleaner for an endoscope is provided with: an elastically deformable long member; a cleaning member affixed to the outer peripheral surface of the distal end section of the long member; and an outer cylinder capable of containing the long member and the cleaning member. The long member has a bent section located closer to the proximal end side than the cleaning member, and the cleaning member faces the lens surface of the endoscope.

Description

Endoscope lens cleaning tool

The present invention relates to an endoscope lens cleaning tool for cleaning an objective lens and an illumination lens provided at the distal end of an endoscope via a treatment instrument insertion channel of the endoscope.

2. Description of the Related Art Conventionally, endoscopes are known that are inserted into a human body and are used to observe the inside of a body cavity with an objective lens or illumination lens provided at the tip. During procedures such as inspection of the stomach and large intestine using an endoscope and ESD (endoscopic submucosal dissection), the lens surface of the endoscope is applied with mucus, stool, and a high-frequency treatment instrument. Fats from tissues accompanying mucosal incision may adhere.

Therefore, Patent Document 1 discloses an endoscope including a nozzle that ejects air or water toward the lens surface of the endoscope. As a result, the dirt attached to the surface of the objective lens can be removed without the operator removing the endoscope from the body cavity.

Patent Document 2 discloses a cleaning tool for cleaning an endoscope lens provided with a cleaning member at the tip of an elastic long member whose tip is formed in an annular shape. As a result, it is possible to remove the dirt attached to the lens surface without the operator removing the endoscope from the body cavity.

Furthermore, Patent Document 3 discloses an L-shaped cleaning tool that passes through a channel provided in the outer peripheral portion of the endoscope and has the tip fixed to a fixing hole at the tip of the endoscope. As a result, it is possible to remove the dirt attached to the lens surface without the operator removing the endoscope from the body cavity.

JP 2012-120701 A JP 2014-204843 A Japanese Patent Laid-Open No. 5-15488

However, the strongly adhering deposit may not be completely removed by the nozzle as shown in Patent Document 1, which may cause a loss of the visual field or blur of the endoscope, and adversely affect high-precision inspection and treatment. There is sex. Therefore, under the present circumstances, it is generally necessary for the surgeon to remove the endoscope from the patient, wipe the lens with a cotton cloth or cotton swab to remove the dirt, and insert the endoscope into the patient again. This increases the treatment time and increases the mental and physical burden on both the operator and the patient.

Further, in the cleaning tool shown in Patent Document 2, since the annular member protrudes from the endoscope tip when the cleaning member is deployed at the tip of the endoscope, the member can contact the mucous membrane in the body cavity of the patient unintentionally. And may affect the procedure of the surgeon. In particular, when protruding from the channel opening at the distal end of the endoscope, the direction in which the cleaning member is restored cannot be identified from the endoscopic image, and the member contacts the mucous membrane in the body cavity of the patient unintentionally. It is likely that it will affect the surgeon's procedure. In addition, during the inspection and treatment of an endoscope, a cylindrical attachment called an endoscope tip hood may be attached to the endoscope tip to secure a visual field. If this member interferes with the endoscope tip hood, the operator's procedure may be affected.

Furthermore, the cleaning tool shown in Patent Document 3 requires a dedicated endoscope, and must be set in the endoscope before being inserted into the patient's body cavity, which may require a cleaning tool. You have to consume cleaning tools, regardless of whether or not. In addition, if the longitudinal part of the cleaning tool is pulled toward the base end in order to generate a pressing force on the lens surface in order to improve cleanability, the edge of the opening of the channel through which the cleaning tool is inserted or the edge of the endoscope tip It is conceivable that the cleaning member is lifted with the edge as a fulcrum, and it is difficult to uniformly clean a desired part.

Therefore, the present invention has been made in view of these problems, and an object of the present invention is to provide an endoscope lens cleaning tool that can reliably remove deposits attached to the lens surface of an endoscope. is there. It is another object of the present invention to provide a cleaning tool that is less likely to damage the cleaning member of the cleaning tool and the treatment tool insertion channel of the endoscope and that can be efficiently cleaned.

The endoscope lens cleaning tool of the present invention has the following configuration in order to solve the above problems.

(1) A first endoscope lens cleaning tool according to the present invention removes deposits on a lens surface of an endoscope, and is an elastically deformable long member that transmits torque, and a long length It is fixed to the outer peripheral surface of the distal end of the member, and includes a cleaning member that cleans the endoscope lens. The long member has a bent portion on the distal end side, and the cleaning member faces the lens surface of the endoscope. The cleaning member is inserted into a treatment instrument insertion channel of the endoscope and protrudes from the endoscope tip, and the envelope of the cleaning member on the lens surface side of the endoscope is It is comprised so that it may have a part which is non-parallel with respect to a surface perpendicular | vertical to the axial direction of a mirror. Therefore, the endoscope lens cleaning tool of the present invention can reliably transmit the force applied from the proximal side of the cleaning tool to the cleaning member on the distal end side, and can uniformly clean a desired part.

According to the configuration of the present invention, dirt attached to the lens surface can be more effectively removed as compared with the endoscope of Patent Document 1 in which air or water is jetted toward the lens surface. Further, since the distal end side of the long member is bent, the protrusion from the endoscope distal end can be reduced as compared with the cleaning tool disclosed in Patent Document 2, and the intention of the patient's body cavity mucosa and the cleaning tool It is also possible to reduce contact that does not occur and interference with the endoscope tip hood. Further, the cleaning member faces the lens surface of the endoscope, and the envelope of the cleaning member on the lens surface side of the endoscope is not parallel to the surface perpendicular to the axial direction of the endoscope. Since it is configured to have a certain portion, the adhesion between the cleaning member and the lens surface can be improved, and the dirt removal performance can be further improved as compared with the cleaning tool disclosed in Patent Document 3. . Further, since the first cleaning tool of the present invention is used by inserting / removing the endoscope into / from the treatment tool insertion channel, the cleaning tool is used regardless of whether it is used or not, like the cleaning tool disclosed in Patent Document 3. There is no need to set a tool, and the cleaning tool of the present invention may be used as necessary, and wasteful use of the device can be prevented.

(2) In the first endoscope lens cleaning tool of the present invention, it is preferable that the envelope has a gradient with respect to a plane perpendicular to the axial direction of the endoscope. Due to the slope, the cleaning member can be brought into contact with the lens surface from the front end to the base end.

(3) In the first endoscope lens cleaning tool of the present invention, the distance between the envelope and the surface perpendicular to the axial direction of the endoscope is preferably smaller on the distal end side of the long member. Since the distance on the distal end side is smaller, the cleaning member can be reliably brought into contact with the lens surface from the distal end to the proximal end.

(4) In the first endoscope lens cleaning tool of the present invention, the cleaning member has a tapered shape in which the distance between the envelope and the surface perpendicular to the axial direction of the endoscope decreases toward the tip. Is preferred. Thereby, irrespective of the bending angle of a long member, it can be made to contact a lens surface reliably from the front-end | tip of a cleaning member to a base end.

(5) In the first endoscope lens cleaning tool of the present invention, it is preferable that the bent portion of the long member bends in a direction in which the tip of the long member approaches the lens surface. Thereby, irrespective of the shape of the cleaning member, the front end to the base end of the cleaning member can be reliably brought into contact with the lens surface.

(6) In the first endoscope lens cleaning tool of the present invention, the bent portion of the long member has a distal end portion of the long member in a direction parallel to a plane perpendicular to the axial direction of the endoscope. It is preferable to be bent. Bending in a direction parallel to a plane perpendicular to the axial direction of the endoscope means that the angle formed between the distal end side and the proximal end side across the bent portion of the long member is approximately 90 degrees. Since it is not necessary to set a special angle, it is easier to manufacture the cleaning tool.

(7) In the first endoscope lens cleaning tool of the present invention, it is preferable to include a long outer member made of resin and capable of storing a long member and a cleaning member. Thereby, the long member provided with the cleaning member at the distal end portion can be more smoothly inserted into and removed from the treatment instrument insertion channel of the endoscope. Moreover, since the cleaning tool and the member which comprises an endoscope do not contact, a cleaning tool main body and an endoscope are not damaged.

(8) In the first endoscope lens cleaning tool of the present invention, the tip of the endoscope lens cleaning tool is bent in a direction away from a plane perpendicular to the axial direction of the endoscope. It is preferable. Thereby, it can suppress that the lens of an endoscope is damaged by a elongate member, a cleaning member, or another member.

(9) A second endoscope lens cleaning tool of the present invention removes deposits on the lens surface of an endoscope, and is an elastically deformable long member that transmits torque, and a long length A cleaning member that is fixed to the outer peripheral surface of the distal end portion of the member and that cleans the lens of the endoscope; and the outer member that can store the elongate member and the cleaning member. The elongate member is based on the cleaning member. A bent portion is provided on the end side, and the cleaning member faces the lens surface of the endoscope.

Therefore, the second endoscope lens cleaning tool of the present invention includes an outer cylinder capable of accommodating the long member and the cleaning member, so that the stopper of the endoscope treatment tool insertion port and the treatment tool insertion channel are provided. When the cleaning member is delivered to the distal end of the endoscope through the above, the cleaning member and each part of the endoscope are not brought into contact with each other by storing the cleaning tool main body in the outer cylinder. For this reason, the plug of the treatment instrument insertion port of the endoscope and the endoscope and the treatment instrument insertion channel are not damaged. Further, the inner surface of the treatment instrument insertion channel is not damaged. For this reason, according to this structure, a long member can be more smoothly inserted / removed with respect to a treatment tool penetration channel. Further, the elastically deformable long member has a bent portion on the proximal end side with respect to the cleaning member, and the cleaning member faces the lens surface of the endoscope. Since the cleaning member easily comes into contact with the lens surface of the endoscope when restored when protruding from the outer tube, the lens can be efficiently cleaned.

(10) In the first and second endoscope lens cleaning tools of the present invention, the cleaning member preferably covers the outer peripheral surface of the distal end portion of the long member. This makes it difficult for the long member to come into direct contact with the lens surface of the endoscope, thereby preventing the lens surface of the endoscope from being damaged.

(11) It is preferable that the 1st and 2nd endoscope lens cleaning tool of this invention is equipped with the identification part which can identify presence of a cleaning member in a long member or a cleaning member. The surgeon recognizes the direction in which the cleaning member is restored when the long member is pushed out by visually recognizing the identification part through the outer tube in which the long member and the cleaning member are accommodated through the endoscopic image. be able to.

With the configurations described in the above (9) and (11), the first and second endoscope lens cleaning tools of the present invention are endoscopes of Patent Document 1 that inject air or water toward the lens surface. Thus, dirt attached to the lens surface can be effectively removed. Furthermore, the cleaning tool disclosed in Patent Document 2 can reduce unintentional contact between the mucous membrane in the body cavity of the patient and the components of the cleaning tool and interference with the endoscope tip hood.

(12) In the first and second endoscope lens cleaning tools of the present invention, the identification portion is inserted when the long member is inserted into the treatment instrument insertion channel of the endoscope and protrudes from the distal end of the endoscope. It is preferable to be located at the position facing the lens surface of the endoscope or at the opposite position. By being positioned in either position, the operator can reliably recognize the direction of the cleaning member.

(13) In the first and second endoscope lens cleaning tools of the present invention, when the cleaning member protrudes from the endoscope distal end when the long member is inserted into the treatment instrument insertion channel of the endoscope. It is preferably provided at a position facing the lens surface of the endoscope. Further, (14) the cleaning member is provided only at a position facing the lens surface of the endoscope when the long member is inserted through the treatment instrument insertion channel of the endoscope and protrudes from the distal end of the endoscope. It is preferable that it is not provided on the opposite side. Since it is determined that the cleaning member is located only on the lens surface side, the cleaning member can be used as the identification unit.

(15) In the first and second endoscope lens cleaning tools of the present invention, the color of the cleaning member protrudes from the endoscope tip when the long member is inserted into the treatment instrument insertion channel of the endoscope. In this case, it is preferable that the position facing the lens surface of the endoscope is different from the position on the opposite side. Thereby, an operator can recognize the direction of a cleaning member reliably.

(16) In the first and second endoscope lens cleaning tools of the present invention, the long member is a hollow tube material and has an opening at a portion where the cleaning member of the long member is provided. preferable. Thereby, since the lens can be cleaned by the cleaning member while injecting the liquid or gas from the base end portion of the long member and releasing the liquid or gas from the opening, it is possible to more reliably remove the deposits. In addition, it is possible to simultaneously perform cleaning with a liquid or gas and cleaning with a cleaning member with a simple structure. In addition, More preferably, it has an opening part in the part in which the base end part of the elongate member and the cleaning member were provided.

(17) In the first and second endoscope lens cleaning tools of the present invention, it is preferable that the distal end portion of the cleaning member has a flexible portion having a hardness lower than that of the endoscope lens. Thereby, it can suppress that the lens of an endoscope is damaged with a elongate member or a cleaning member.

(18) In the first and second endoscope lens cleaning tools of the present invention, it is preferable that the cleaning member is a brush, or (19) the material of the cleaning member is an elastomer. Thereby, the deposits on the lens surface of the endoscope can be efficiently scraped off.

(20) In the first and second endoscope lens cleaning tools of the present invention, the cleaning member is preferably made of a biodegradable resin. Thereby, even if the cleaning member falls off in the body, the influence on the human body can be further reduced.

According to the present invention, the dirt adhering to the lens surface at the distal end of the endoscope can be removed safely and efficiently in the patient's body cavity more securely than before. Further, since the number of components is small and the structure is simplified, the manufacturing is easy and the manufacturing can be performed at low cost.

It is a top view of the lens cleaning tool for endoscopes concerning one example of the present invention. It is a top view including the partial cross section which shows the lens cleaning tool for endoscopes which concerns on one Example of this invention. It is an enlarged view of a partial cross section of an endoscope lens cleaning tool according to an embodiment of the present invention. It is a figure which shows the front-end | tip part of the lens cleaning tool for endoscopes which concerns on one Example of this invention. It is a figure which shows the front-end | tip part of the use condition of the lens cleaning tool for endoscopes which concerns on one Example of this invention. It is a figure which shows the front-end | tip part of the use condition of the lens cleaning tool for endoscopes which concerns on one Example of this invention. It is a figure which shows the front-end | tip part of the use condition of the lens cleaning tool for endoscopes which concerns on one Example of this invention. It is a figure which shows the front-end | tip part of the use condition of the lens cleaning tool for endoscopes which concerns on one Example of this invention. It is a figure which shows the front-end | tip part of the use condition of the lens cleaning tool for endoscopes which concerns on one Example of this invention. It is a figure which shows the front-end | tip part of the use condition of the lens cleaning tool for endoscopes of a comparative example. It is a figure which shows the front-end | tip part of the use condition of the lens cleaning tool for endoscopes of a comparative example. It is a figure which shows the front-end | tip part of the use condition of the lens cleaning tool for endoscopes which concerns on one Example of this invention. It is a figure which shows the state at the time of seeing the lens cleaning tool for endoscopes which concerns on one Example of this invention from the visual field image of an endoscope. It is a figure which shows the front-end | tip part of the use condition of the lens cleaning tool for endoscopes which concerns on one Example of this invention. It is a figure which shows the front-end | tip part of the use condition of the lens cleaning tool for endoscopes which concerns on one Example of this invention. It is a front-end | tip part of the lens cleaning tool for endoscopes which concerns on one Example of this invention, Comprising: It is a figure which shows the state at the time of seeing from A direction of FIG. It is a figure which shows the front-end | tip part of the use condition of the lens cleaning tool for endoscopes which concerns on one Example of this invention. It is a figure which shows the state at the time of seeing the lens cleaning tool for endoscopes which concerns on one Example of this invention from the visual field image of an endoscope. It is a figure which shows the front-end | tip part of the use condition of the lens cleaning tool for endoscopes which concerns on one Example of this invention. It is a figure which shows the state at the time of seeing the lens cleaning tool for endoscopes which concerns on one Example of this invention from the visual field image of an endoscope. It is a figure which shows the front-end | tip part of the use condition of the lens cleaning tool for endoscopes which concerns on one Example of this invention.

First, members constituting the first and second endoscope lens cleaning tools of the present invention will be described.
(1) Cleaning tool The endoscope lens cleaning tool of the present invention is inserted into a treatment tool insertion channel of an endoscope having a lens on a distal end surface thereof, and is for cleaning the lens of the endoscope. Hereinafter, the “lens cleaning tool for endoscope” may be simply referred to as “cleaning tool”. Insert the cleaning tool through the proximal end opening of the treatment instrument insertion channel at the proximal end of the endoscope, project part of the long member including the cleaning member from the distal end opening, and bring the cleaning member into contact with the lens. Clean the lens.

(2) Long member The long member of the endoscope lens cleaning tool of the present invention is formed of an elastically deformable material and has a bent portion. The elasticity of the long member is sufficient as long as it changes in shape along with the deformation of the treatment instrument insertion channel of the endoscope. The material of the long member is not particularly limited as long as it is a material that can be elastically deformed, but a superelastic alloy is preferable, and a Ni—Ti alloy, a Fe—Mg—Si alloy, an Au—Cu—Al alloy, Co— Examples include Cr-based alloys and Co—Ni-based alloys. Other materials include superelastic resins such as superelastic polyamide. Further, since at least the bent portion of the long member only needs to be formed of a material having superelasticity, only the portion may be formed of a superelastic alloy, and different materials may be used for other portions. As the different materials, metals such as stainless steel and resins such as nylon can be used. When different materials are used, different wire materials may be joined by a normal joining method. For example, there are methods such as caulking with metal pipes, welding, welding and bonding. By configuring the bent part of the long member with a material that is superelastic or elastically deformable, the bent part can be reliably restored to its original shape when the tip of the long member including the cleaning member and the bent part protrudes from the outer cylinder. The lens can be restored and cleaned efficiently.

The long member may be a single wire or a stranded wire obtained by combining single wires. If it is a single wire, it is easy to manufacture, and if it is a stranded wire, the strength of the long member can be increased, so that the rotation operation on the proximal end side can be more reliably transmitted to the distal end portion, etc. The operability can be improved. Moreover, the structure by which the linear member was joined in the middle part of the elongate member may be sufficient. The length of the long member needs to be longer than the treatment instrument insertion channel in order to clean the lens on the distal end side and operate the long member on the proximal end side.

Further, the long member may be a hollow tubular member. By providing an opening that communicates with the outside of the tube at the position where the cleaning member is formed (more preferably both the base end and the position where the cleaning member is formed) as a tubular member, the base end side of the long member It is possible to discharge liquid, gas, and the like fed from the opening from the opening. By removing the liquid or gas when removing the deposit by the cleaning member, the deposit can be removed more reliably. Delivery of liquid, gas, etc. can be performed by connecting a syringe etc. to the base end side opening part of a long member.

(3) Bent part The long member of the first cleaning tool has a bent part on the tip side. Moreover, the elongate member of the 2nd cleaning tool has a bending part in the base end side rather than the cleaning member. According to the first and second endoscope lens cleaning tools of the present invention, when the treatment tool insertion channel or the outer cylinder of the endoscope is inserted, the bent portion of the long member is elastically treated by the treatment tool insertion channel. Or a shape that conforms to the shape of the outer cylinder. When the bent portion of the long member protrudes from the treatment instrument insertion channel, it is restored to its original shape by the elastic force, so that the cleaning member faces the distal end surface of the endoscope. Even when the long member is removed, the bent portion on the distal end side of the long member has elasticity, and thus has a shape that follows the shape of the treatment instrument insertion channel and the outer cylinder. Thereby, it is possible to smoothly insert / remove to / from the treatment instrument insertion channel.

(4) Cleaning member The cleaning member is for cleaning the lens of the endoscope. The outer peripheral surface of the front-end | tip part of a long member is being fixed to the cleaning member. When the cleaning member is inserted into the treatment instrument insertion channel and protrudes from the distal end portion of the endoscope, the cleaning member faces the distal end surface of the endoscope. The outer peripheral surface of the distal end portion of the long member may be partially or entirely covered with the cleaning member. This makes it difficult for the long member to come into direct contact with the lens surface of the endoscope, thereby preventing the lens surface of the endoscope from being damaged.

Examples of cleaning members include brushes, sponges, flexible plastic pieces, and non-woven fabrics. In the case of a brush, the certainty of removing the deposits can be increased, which is preferable. There are various cleaning materials such as nylon, polypropylene, vinyl chloride, polyamide, polyester, acrylic, polyurethane, polystyrene, polyolefin, silicone, rayon, rubber, nylon elastomer, ester elastomer, urethane elastomer, olefin elastomer, cotton, silk, etc. The material can be selected. By using a material such as an elastomer and a blade-like shape such as a shape having an edge with an angle with respect to the lens surface of the endoscope, the deposits can be more reliably removed. Moreover, since it is used in the living body, it is also preferable to use a biodegradable resin in order to further improve safety. Since the cleaning member is in contact with the lens of the endoscope, it is preferable to select a cleaning member that does not damage the lens and has strength or waist strength that can remove deposits.

In order to fix the cleaning member to the long member, for example, when the cleaning member is a brush, the long member is made of two wires, the hair is sandwiched between them, the wire is twisted into a brush shape, Arbitrary methods, such as the method of fixing the hair of the brush to the member by electrostatic flocking, can be employed. In the case of a sponge, a plastic piece, or a non-woven fabric, the long member and the cleaning member can be fixed by welding with heat, bonding with an adhesive, or sandwiching the long member as described above.

(5) Outer cylinder It is preferable that the 1st cleaning tool of this invention is equipped with the elongate member made from resin which can accommodate a long member and the cleaning member located in the front-end | tip. Moreover, the 2nd cleaning tool of this invention is provided with the outer cylinder which can accommodate a long member and the cleaning member located in the front-end | tip. Since the long member and the cleaning member can be housed in the outer tube and the cleaning member can be protected, the cleaning member is delivered to the endoscope tip through the stopper of the endoscope treatment instrument insertion port and the treatment instrument insertion channel. When cleaning, the cleaning member is not damaged. Further, the inner surface of the treatment instrument insertion channel is not damaged. For this reason, according to this structure, a long member can be more smoothly inserted / removed with respect to a treatment tool penetration channel. The material of the outer cylinder is not particularly limited, but is preferably made of resin or metal, and is preferably an elastic material whose shape changes along with the deformation of the treatment instrument insertion channel of the endoscope. If it is resin, PTFE (polytetrafluoroethylene), PP (polypropylene), etc. are preferable, for example. The outer cylinder can also be formed of a transparent material in order to confirm the direction of the cleaning member in the endoscopic image. When the outer cylinder is not made of a transparent or translucent material, a cleaning tool in the outer cylinder is provided by providing an opening in the outer cylinder such as by providing a small hole in the side wall of the outer cylinder or by forming the outer cylinder in a net shape. It is preferable to configure so as to be visible.

(6) Operation handle In addition, when the surgeon inserts the cleaning tool of the present invention into the treatment instrument insertion channel, the cleaning member is brought into contact with the lens of the endoscope, or the long member is rotated around its central axis. In order to facilitate the operation such as swinging the cleaning member, an operation handle can be provided on the proximal end side of the long member. The operator can operate the cleaning tool by grasping and rotating the operation handle. The operation handle preferably has an outer diameter larger than the outer diameter of the long member. This makes it easier for the operator to rotate the long member. In addition, since a high torque can be generated on the base end side, it is possible to improve the performance of removing dirt due to the swing of the cleaning member at the tip.

(7) Other configurations The tip of the cleaning tool of the present invention may be bent in a direction away from a plane perpendicular to the axial direction of the endoscope. The tip of the cleaning tool may be the tip of the cleaning member or the tip of the long member. In addition, the tip of the cleaning tool is bent by attaching another member that is bent away from the surface perpendicular to the axial direction of the endoscope to the cleaning member or the long member. Also good. For example, a cleaning member bending portion that bends away from the lens surface of the endoscope may be provided on the most distal side of the cleaning member. By doing in this way, it can prevent damaging a lens surface with the front-end | tip part and long member of a cleaning member.

A flexible portion having a lower hardness than the endoscope lens may be provided on the distal end side of the cleaning member. By doing so, it is possible to prevent the lens surface from being damaged when the tip of the cleaning member comes into contact with the lens. In this case, it is preferable that the most distal portion of the cleaning tool is the flexible portion.

Next, the 1st and 2nd cleaning tool of this invention is demonstrated.
(8) First endoscope lens cleaning tool The first cleaning tool of the present invention removes deposits on the lens surface of the endoscope, and is an elastically deformable long length that transmits torque. And a cleaning member that is fixed to the outer peripheral surface of the distal end portion of the member and the long member, and includes a cleaning member that cleans the lens of the endoscope, the long member has a bent portion on the distal end side, and the cleaning member is the endoscope The cleaning member is an envelope of the cleaning member on the lens surface side of the endoscope, the long member being inserted into the treatment instrument insertion channel of the endoscope and protruding from the endoscope front end. The line has a portion that is non-parallel to a plane perpendicular to the axial direction of the endoscope.

The first cleaning tool of the present invention is configured so that the envelope of the cleaning member on the lens surface side of the endoscope has a portion that is non-parallel to a plane perpendicular to the axial direction of the front endoscope. ing. For this reason, by pulling the long member toward the proximal end in the axial direction, the distance between the envelope and the surface perpendicular to the axial direction of the endoscope becomes zero, and the cleaning member and the endoscope lens are brought into close contact with each other. Can do.

“The envelope of the cleaning member on the lens surface side of the endoscope is not parallel to the plane perpendicular to the axial direction of the endoscope” means, for example, that the envelope is perpendicular to the axial direction of the endoscope For example, a configuration in which the distance to the smooth surface gradually increases from the distal end side to the bent portion side of the cleaning member, a narrowing configuration, a periodically changing configuration, a randomly changing configuration, and the like.

In the first endoscope lens cleaning tool of the present invention, it is preferable that the envelope has a gradient with respect to a plane perpendicular to the axial direction of the endoscope. For example, it is preferable that the distance between the envelope and the plane perpendicular to the axial direction of the endoscope is gradually increased or decreased. In order to bring the cleaning member and the endoscope lens into close contact with each other, a configuration in which the distance gradually increases from the distal end side to the bent portion of the cleaning member, that is, a configuration in which the distal end side is closer to the endoscope lens surface is preferable. Thus, it is preferable that the distance between the envelope and the surface perpendicular to the axial direction of the endoscope is smaller on the distal end side of the long member. With such a configuration of the cleaning tool, when the long member is pulled toward the proximal end, first, the distal end of the cleaning member contacts the lens. When the long member is further pulled, the proximal end side of the cleaning member gradually comes into contact with the lens along with the deformation due to the external force received from the lens at the bent portion of the long member. Finally, the cleaning member and the endoscope lens can be brought into close contact with each other so that the front end to the base end of the cleaning member are in contact with the lens.

Further, it is preferable that the shape of the cleaning member itself is a tapered shape in which the distance between the envelope and the surface perpendicular to the axial direction of the endoscope decreases toward the tip. Thereby, the front end side of the cleaning member can be brought closer to the endoscope lens surface regardless of the shape of the bent portion. Examples of such a tapered shape include a truncated cone shape and a quadrangular pyramid shape that gradually tapers toward the distal end portion, and a shape that decreases toward the distal end portion only on the lens surface side. It is done.

The shape of the bent portion of the long member is preferably bent in a direction in which the tip of the cleaning member approaches the lens surface of the endoscope. As the shape, there is an L-shaped shape in which the distal end side of the long member is a short side and the base end side is a long side. Further, the bent portion may be bent so that the distal end side and the proximal end side sandwiching the bent portion have an angle, or may be bent so as to draw a curve. Further, a wavy shape may be used. If the distal end of the long member is bent in a direction approaching the lens surface of the endoscope, the distal end of the cleaning member is not affected even when the cleaning member has a shape parallel to the long axis of the long member. This is preferable because it approaches the lens surface of the endoscope.

Furthermore, it is preferable that the bent portion bends in a direction in which the distal end portion of the long member is parallel to a plane perpendicular to the axial direction of the endoscope. Moreover, the bending part may be bent in the direction in which the front-end | tip part of an elongate member is parallel to the lens surface of an endoscope. In this case, the adhesiveness of the cleaning member to the lens can be enhanced by making the shape of the cleaning member such that the tip of the cleaning member can easily approach the lens surface.

(9) Second lens cleaning tool for endoscope The second cleaning tool of the present invention removes deposits on the lens surface of the endoscope, and is an elastically deformable long length that transmits torque. A member and a cleaning member that is fixed to the outer peripheral surface of the distal end portion of the long member, cleans the lens of the endoscope, and an outer cylinder that can store the long member and the cleaning member, and the long member is cleaned A bent portion is provided on the base end side of the member, and the cleaning member faces the lens surface of the endoscope.
Therefore, the second endoscope lens cleaning tool of the present invention includes an outer cylinder capable of accommodating the long member and the cleaning member, so that the stopper of the endoscope treatment tool insertion port and the treatment tool insertion channel are provided. When the cleaning member is delivered to the distal end of the endoscope through the above, the cleaning member and each part of the endoscope are not brought into contact with each other by storing the cleaning tool main body in the outer cylinder. Therefore, the cleaning member, the stopper of the endoscope treatment instrument insertion port, and the treatment instrument insertion channel are not damaged. Further, the inner surface of the treatment instrument insertion channel is not damaged. For this reason, according to this structure, a long member can be more smoothly inserted / removed with respect to a treatment tool penetration channel. In addition, since the bent portion is provided on the distal end side of the elastically deformable long member, the distal end of the long member including the cleaning member is restored when protruding from the outer cylinder, and the lens can be efficiently cleaned.

It is preferable that the second endoscope lens cleaning tool of the present invention is provided with an identification portion that can identify the presence of the cleaning member on the long member or the cleaning member. Thereby, the surgeon visually recognizes the identification part through the outer cylinder in which the long member and the cleaning member are stored through the endoscopic image, so that the distal end is more distal than the bent part of the long member when the long member is pushed out. It is possible to recognize in which direction the side is restored. If the direction of restoration seems to be toward the outside of the endoscope, rotate the entire cleaning tool by simultaneously twisting the outer cylinder and the long member coming out from the treatment instrument insertion port of the operator endoscope Can be corrected to the center side of the endoscope. Therefore, the cleaning tool disclosed in Patent Document 2 can reduce unintentional contact between the mucous membrane in the body cavity of the patient and the components of the cleaning tool and interference with the endoscope tip hood.

In addition, when the cleaning tool is in contact with the inner surface of the outer cylinder and is locked by frictional force, the cleaning tool can be directed in a desired direction by rotating only the outer cylinder. In addition, the cleaning tool can be directed in a desired direction by rotating only the cleaning tool regardless of the presence or absence of the outer cylinder.

The identification unit is not particularly limited as long as it indicates the surface of the cleaning member facing the endoscope. For example, the identification member is positioned at the position of the long member facing the lens surface of the endoscope or on the opposite side thereof. A marker may be attached. Further, the side of the long member facing the lens surface or the opposite side may be colored. Alternatively, the cleaning member may be configured in two colors, one color portion may be disposed at a position facing the lens surface of the endoscope, and the other color may be disposed at the opposite position. In this way, by providing the cleaning member only on the side facing the endoscope, the identification unit can be formed.

Hereinafter, a method of using the endoscope lens cleaning tool of the present invention will be described.

The first and second endoscope lens cleaning tools according to the present invention can be removed by injecting water or air from the endoscope nozzle onto the lens surface according to the endoscopic image by the operator during endoscopic examination and treatment. Used when it is confirmed that there is no dirt. The endoscope lens cleaning tool of the present invention is inserted from the treatment instrument insertion port of the endoscope through the treatment instrument insertion channel toward the endoscope distal end.

At this time, since the long member has elasticity, the bent portion is deformed into a shape along the shape of the treatment instrument insertion channel. And when the front-end | tip part of an elongate member protrudes from an endoscope front-end | tip, it will restore | restore to the original shape of a bending part, for example, L shape, with an elastic force, and the cleaning member will oppose the front-end | tip surface of an endoscope.

In the case of the first cleaning tool, the surgeon rotates the long member while viewing the endoscope image, and positions the cleaning member attached to the distal end of the long member above the endoscope lens. Adjust as follows. Thereafter, the cleaning member is pressed against the lens by pulling the long member toward the base end side. Here, before pressing, the distance between the cleaning member and the endoscope lens surface decreases toward the tip, so when the long member is pulled toward the proximal end, the tip of the cleaning member first contacts the lens. To do. When the elongate member is further pulled toward the base end side, the base end side of the cleaning member gradually comes into contact with the lens as the external member receives deformation from the lens at the bent portion of the elongate member. Finally, the cleaning member comes into contact with the lens from the distal end to the proximal end. When the cleaning member is a brush and the tip of the long member protrudes from the brush portion, it is desirable that the protruding portion be gently bent away from the lens so as not to damage the lens.

In the case of the second cleaning tool, after the distal end portion of the outer cylinder protrudes from the channel opening portion at the distal end of the endoscope, the operator performs an external operation in which the long member and the cleaning member are accommodated through the endoscopic image. By confirming the direction of the identification part through the tube, it is possible to recognize in which direction the tip side is restored from the bent part when the long member is pushed out. If the direction of restoration is toward the outside of the endoscope, the surgeon twists the outer cylinder or long member protruding from the treatment instrument insertion port of the endoscope and rotates the entire cleaning tool to restore the restoration. Correct the direction to the center of the endoscope. Further, the surgeon rotates the long member while viewing the endoscope image, and finely adjusts the cleaning member attached to the distal end of the bent portion so as to be positioned above the endoscope lens. Thereafter, the outer cylinder is pulled into the treatment instrument insertion channel, and further, the cleaning member is pressed against the lens by pulling the long member toward the proximal end side.

Thereafter, by rotating the proximal end side of the long member of the first cleaning tool or the second cleaning tool, the cleaning member on the distal end side is swung like a wiper to wipe off dirt on the endoscope lens. Remove. At this time, if the above operation is performed while jetting water or air with a lens cleaning nozzle provided in the endoscope, dirt can be removed more strongly.

After confirming that the dirt has been removed from the endoscopic image, pull the long member from the treatment instrument insertion port of the endoscope and remove the cleaning tool. When passing through the treatment instrument insertion channel, the bent portion of the elongated member is elastically deformed in the same manner as when inserting, so that the shape follows the shape of the treatment instrument insertion channel. Therefore, the cleaning tool can be smoothly removed from the endoscope.

In inserting the first cleaning tool of the present invention from the treatment tool insertion port, the proximal side from the distal end of the long member including the cleaning member can be inserted through the outer cylinder in advance. In the case of the second cleaning tool, the proximal side is inserted through the outer cylinder from the distal end portion of the long member including the cleaning member in advance for insertion from the treatment instrument insertion port. Since the long member has elasticity, the bent portion is deformed and can be accommodated in the outer cylinder. Insertion / extraction to the endoscope with a long member stored in the outer cylinder makes it possible to insert / remove the treatment instrument insertion port of the endoscope, the treatment instrument insertion channel, and the channel opening on the distal end side of the endoscope. Thus, the cleaning member is not damaged and the dirt removal performance is not deteriorated. Further, at the time of removal, it is possible to prevent the treatment instrument insertion channel of the endoscope from being contaminated by deposits attached to the cleaning member.

This application claims the benefit of priority based on Japanese Patent Application No. 2015-136404 and Japanese Patent Application No. 2015-136405 filed on July 7, 2015. The entire contents of the specifications of Japanese Patent Application No. 2015-136404 and Japanese Patent Application No. 2015-136405 filed on July 7, 2015 are incorporated herein by reference.

(1) First endoscope lens cleaning tool (Example 1)
FIGS. 1 to 6 are views showing the distal end portion of the first cleaning tool in use according to the first embodiment.
As the cleaning tool of Example 1, the cleaning tool shown in FIGS. 1 and 2 was produced. In the cleaning tool 10, the long member 31 is formed by bending a distal end portion of a long member obtained by twisting two wires of nickel titanium alloy to form a bent portion 32, and the cleaning member 21 is provided on the distal end side. The total length of the long member is longer than the channel path length of the endoscope. Since superelastic materials are generally expensive, they may be joined with another wire such as a stainless wire in the middle.

In this embodiment, as shown in FIG. 3, a long member is formed by connecting two kinds of wire rods, a nickel titanium alloy wire 31a on the distal end side and a stainless steel wire 31b on the proximal end side, by caulking joining with a pipe 33. . As shown in FIG. 4, the long member is stored in advance in an outer cylinder 51 that is a tube of elastic fluororesin (PTFE). By inserting the long member into the outer cylinder, the bent portion 32 on the distal end side is deformed, and the cleaning member can be accommodated in the tube. If the long member is pushed out of the outer cylinder, the bent portion comes out of the tube and is restored to its original shape. The base end portion of the long member is provided with an operation handle 41, and the long member is easily pulled, pushed out and rotated. In the cleaning tool, the proximal end means the side provided with the operation handle, and the distal end means the opposite side.

As shown in FIG. 5, a cylindrical low-density polyethylene sponge having a diameter of 1.5 mm and a length of 6 mm was fixed as a cleaning member 21 on the distal end side of the bent portion 32 of the long member 31 by heat welding. As the long member 31, the tip side of a nickel titanium alloy single wire having a diameter of 0.3 mm was bent to form a bent portion 32. The long member was bent so that the angle θ formed between the distal end side and the proximal end side was 68 degrees across the bent portion of the long member. Thereby, since the front end 21a of the long member of the cleaning tool is bent in a direction approaching the lens surface, the envelope of the cleaning member on the lens surface side of the endoscope and the axis direction of the endoscope are perpendicular to each other. The cleaning member is arranged so that the distance from the surface becomes smaller toward the tip.

The distal end side including the cleaning member of the cleaning tool was inserted from the treatment instrument insertion channel 82 of the endoscope 80 to the distal end of the endoscope. The distal end side including the cleaning member of the cleaning tool is protruded from the distal end of the endoscope, the proximal end portion of the long member is rotated, and the direction of the cleaning member is adjusted so that the cleaning member is positioned above the endoscope lens 81. did. When the elongate member is pulled toward the base end side, the tip of the cleaning member first comes into contact with the lens. When the elongate member is further pulled toward the base end side, the cleaning member gradually contacts the lens toward the base end side as the external member receives deformation from the lens at the bent portion of the elongate member. Then, as shown in FIG. 6, the lens from the distal end 21a to the proximal end 21b of the cleaning member finally contacted the lens. Then, by rotating the proximal end side of the long member, the cleaning member was swung like a wiper to remove dirt on the endoscope lens, and the lens was cleaned.

(Example 2)
FIGS. 7 to 8 are diagrams showing a tip portion of the first cleaning tool in use according to the second embodiment, and FIG. 7 shows a state where the cleaning member and the lens surface of the endoscope are not in contact with each other. FIG. 8 shows a state in which the cleaning member and the lens surface of the endoscope are brought into contact with each other. A first cleaning tool was produced in the same manner as the first cleaning tool according to Example 1 except for the conditions described below. As shown in FIGS. 7 to 8, as the long member 31, the bent wire 32 was formed by bending the tip end side of a cobalt nickel alloy single wire having a diameter of 0.3 mm. The bent portion was bent so that the angle θ formed by the distal end side and the proximal end side was 90 degrees across the bent portion of the long member. A nylon thread having a diameter of 15 μm was planted on the distal end side of the long member by electrostatic flocking as the cleaning member 21 on the distal end side from the bent portion. The implanted nylon thread was cut, the tip side 21a was 0.8 mm, the length was shortened sequentially, and the bent part side 21b was 0.2 mm.

According to the second embodiment, the bent portion of the long member is bent in the direction in which the distal end portion of the long member is parallel to the lens surface, but the length of the bristles of the brush is inclined. . The lens surface 81 of the endoscope is parallel to a plane perpendicular to the axial direction of the endoscope. For this reason, the distance between the envelope of the cleaning member on the lens surface side of the endoscope and the surface perpendicular to the axial direction of the endoscope decreases toward the distal end of the cleaning member. The mechanism of contact between the cleaning member and the lens surface is the same as in the first embodiment.

(Example 3)
FIG. 9 is a diagram illustrating the distal end portion of the first cleaning tool according to the third embodiment when in use. A first cleaning tool was produced in the same manner as the first cleaning tool according to Example 1 except for the conditions described below. As the long member 31, a nickel titanium alloy single wire having a diameter of 0.2 mm was folded in half. An acrylic thread having a diameter of 0.07 mm was sandwiched by 5 mm from the position where the single wire was folded in half, and the metal wire was twisted to plant brush hair as a cleaning member on the distal end side of the long member. Thereafter, the planted acrylic yarn was cut, and the cleaning member as a whole was cylindrical with a diameter of 5 mm and a length of 6 mm. The position of the long member on the base end side with respect to the cleaning member was bent to form the bent portion 32. The bent portion was bent so that the angle θ formed between the distal end side and the proximal end side was 68 degrees across the bent portion of the long member. Further, as shown in FIG. 9, the leading edge of the long member was bent in a direction away from the endoscope lens. According to the present embodiment, since the tip of the long member is gently bent in the direction away from the lens, it is possible to prevent the tip of the long member from contacting the lens and damaging the lens.

Example 4
A first cleaning tool according to Example 4 was produced in the same manner as the first cleaning tool according to Example 1 except for the conditions described below. Although not shown in the drawings, as the long member 31, the front end side of a cobalt nickel alloy single wire having a diameter of 1 mm was bent to form a bent portion 32. The bent portion was bent so that the angle θ formed between the distal end side and the proximal end side was 80 degrees across the bent portion of the long member. Three circular openings with a diameter of 0.2 mm were provided along the long axis direction at a position of 30 degrees in the circumferential direction from the side facing the endoscope lens on the front end side of the bent portion of the long member. . A rectangular parallelepiped silicone rubber having a length of 6 mm, a thickness of 0.5 mm, and a height of 0.5 mm was adhered as an cleaning member 21 at a position facing the endoscope lens on the tip side from the bent portion.

A connecting portion and an operation handle were formed at the base end of the long member so that a syringe could be connected. Since the opening communicates with the proximal end syringe, when physiological saline was injected from the syringe, the physiological saline was released from the distal end opening. Not only physiological saline but also liquid such as purified water or cleaning agent, and gas can be injected and released. According to the present embodiment, the cleaning member is closely attached to the endoscope lens surface, and the physiological saline can be discharged when the cleaning lens member cleans the lens surface of the endoscope. Could be removed.

(Comparative example)
10 to 11 are views showing the distal end portion of the cleaning tool according to the comparative example in use. A cleaning tool shown in FIG. 10 was produced as the cleaning tool of the comparative example in the same manner as the first cleaning tool according to Example 1 except for the conditions described below. As the long member 131, the tip side of a nickel titanium alloy single wire having a diameter of 0.3 mm was bent to form a bent portion 132. The bent portion was bent so that the angle formed by the distal end side and the proximal end side was 90 degrees across the bent portion of the long member. A cylindrical low-density polyethylene sponge having a diameter of 1.5 mm and a length of 6 mm was fixed as a cleaning member 121 to the tip side from the bent portion by heat welding. The envelope of the cleaning member on the lens surface side of the endoscope was parallel to a plane perpendicular to the axial direction of the endoscope.

The cleaning tool of the comparative example was housed in the outer cylinder 151, inserted from the treatment instrument insertion port of the endoscope 80 into the endoscope channel 82, and the cleaning member was opposed to the lens surface 81. When the cleaning member is pressed against the lens, the long member comes into contact with the edge of the treatment instrument insertion channel opening as shown in FIG. 11, and the cleaning member floats from the lens with the fulcrum as a fulcrum. It could not be brought into close contact with the lens surface of the mirror. For this reason, even if the cleaning member is swung on the endoscope lens, the dirt cannot be wiped off.

(2) Second endoscope lens cleaning tool (Example 5)
12 to 15 are views showing the distal end portion in use of the second cleaning tool according to the fifth embodiment. A second cleaning tool was produced in the same manner as the first cleaning tool according to Example 1 except for the conditions described below.
As shown in FIG. 12, a cylindrical low-density polyethylene sponge having a diameter of 1.0 mm and a length of 6 mm was cut in half as the cleaning member 21 on the distal end side from the bent portion 32 of the long member 31, The long member and the longitudinal axis of each one of white and blue were aligned and fixed by heat welding. As the long member 31, the tip side of a nickel titanium alloy single wire having a diameter of 0.3 mm was bent to form a bent portion 32. At this time, the blue portion of the cleaning member faces the lens surface of the endoscope when protruding from the lower side of the bent portion, that is, from the treatment instrument insertion port of the endoscope.

The color of the cleaning member is divided between the side facing the lens and the opposite side, thereby forming an identification unit. As shown in FIG. 13, when the outer cylinder in which the cleaning member and the long member are accommodated is put out until entering the field of view of the endoscope, the color can be confirmed in the endoscopic image. it can. When the colors 22a and blue on the side facing the lens can be confirmed, as shown in FIG. 14, the long member can be pushed out of the outer cylinder and the distal end side can be restored to the center side of the endoscope with respect to the bent portion. . Here, the visual field of the endoscope is a portion indicated by broken lines at both ends of the endoscope lens 81 in FIG. In FIG. 13, reference numeral 90 indicates a frame of the endoscopic image. As shown in FIG. 15, by pulling the long member and the outer cylinder toward the lens side and rotating the base end side of the long member, the tip cleaning member is swung like a wiper to The lens was cleaned by wiping off the dirt. When the color on the side opposite to the lens is visible, twist the outer cylinder until the color on the side facing the lens is visible, and then rotate the outer cylinder toward the outer circumference of the endoscope. Can be prevented from protruding.

(Example 6)
FIGS. 16 to 21 are views showing the distal end portion of the second cleaning tool according to the sixth embodiment in use. A second cleaning tool was produced in the same manner as the first cleaning tool according to Example 1 except for the conditions described below.
As the long member 31, the tip side of a cobalt nickel alloy single wire having a diameter of 0.3 mm was bent to form a bent portion 32. A nylon thread having a diameter of 15 μm was planted on the distal end side of the long member by electrostatic flocking as a cleaning member 21 at a position facing the lens surface of the endoscope at the distal end side from the bent portion. As shown in FIG. 16, the cleaning member 21 is provided only on the side of the long member facing the lens. Thereby, an identification part is comprised. In this configuration, the long wire rod 31 is exposed on the side opposite to the side facing the lens. As shown in FIGS. 17 and 18, if the wire is visible in the endoscopic image, it can be understood that even if the long member is pushed out, it does not face the lens. Therefore, as shown in FIG. 19, the outer cylinder 51 is twisted and rotated. . As shown in FIG. 20, if the long member is not visible, that is, if the cleaning member is pushed out in an endoscopic image, the long member is pushed out from the bent portion of the long member as shown in FIG. Can be restored to the center side of the endoscope. Therefore, even when the hood 83 is attached to the endoscope as shown in FIG. 17, the lens can be cleaned without causing the cleaning member and the hood to interfere with each other.

DESCRIPTION OF SYMBOLS 10 Endoscope lens cleaning tool 21 Cleaning member 31 Long member 32 Bending part 41 Operation handle 51 Outer cylinder 80 Endoscope 81 Endoscopic lens 82 Treatment tool insertion channel 83 Endoscope hood 90 Endoscopic image frame

Claims

An elastically deformable long member that transmits torque;
It is fixed to the outer peripheral surface of the distal end of the long member, and includes a cleaning member that cleans the lens of the endoscope,
The long member has a bent part on the tip side,
The cleaning member faces the lens surface of the endoscope,
In the cleaning member, the long member is inserted into the treatment instrument insertion channel of the endoscope and protrudes from the distal end of the endoscope, and the envelope of the cleaning member on the lens surface side of the endoscope is the axis of the endoscope. An endoscope lens cleaning tool having a portion that is non-parallel to a plane perpendicular to the direction.
The endoscope lens cleaning tool according to claim 1, wherein the envelope has a gradient with respect to a plane perpendicular to the axial direction of the endoscope.
The endoscope lens cleaning tool according to claim 2, wherein a distance between the envelope and a surface perpendicular to the axial direction of the endoscope is smaller on a distal end side of the long member.
The endoscope according to any one of claims 1 to 3, wherein the cleaning member has a tapered shape in which a distance between the envelope and a surface perpendicular to the axial direction of the endoscope decreases toward the tip. Lens cleaning tool.
The endoscope lens cleaning tool according to any one of claims 1 to 4, wherein the bent portion of the long member is bent in a direction in which a distal end portion of the long member approaches the lens surface.
5. The inner portion according to claim 1, wherein the bent portion of the long member is bent in a direction parallel to a plane perpendicular to the axial direction of the endoscope. Endoscope lens cleaning tool.
The endoscope lens cleaning tool according to any one of claims 1 to 6, further comprising a resin-made long outer tube capable of storing the long member and the cleaning member.
The endoscope lens according to any one of claims 1 to 7, wherein a tip of the endoscope lens cleaning tool is bent in a direction away from a plane perpendicular to an axial direction of the endoscope. Cleaning tool.
An elastically deformable long member that transmits torque;
A cleaning member that is fixed to the outer peripheral surface of the distal end portion of the long member and cleans the lens of the endoscope;
An outer cylinder capable of accommodating the elongate member and the cleaning member;
The long member has a bent portion on the proximal side from the cleaning member,
An endoscope lens cleaning tool in which the cleaning member faces the lens surface of the endoscope.
The endoscope lens cleaning tool according to any one of claims 1 to 9, wherein the cleaning member covers an outer peripheral surface of a distal end portion of a long member.
The endoscope lens cleaning tool according to claim 9 or 10, wherein the long member or the cleaning member is provided with an identification portion that can identify the presence of a cleaning member.
The identification unit is located at a position facing the lens surface of the endoscope or an opposite position when the long member is inserted into the treatment instrument insertion channel of the endoscope and protrudes from the distal end of the endoscope. The endoscope lens cleaning tool according to claim 11.
The cleaning member is provided at a position facing the lens surface of the endoscope when the long member is inserted through the treatment instrument insertion channel of the endoscope and protrudes from the distal end of the endoscope. The lens cleaning tool for endoscopes as described.
The cleaning member is provided only at a position facing the lens surface of the endoscope when the long member is inserted into the treatment instrument insertion channel of the endoscope and protrudes from the distal end of the endoscope, and vice versa. The endoscope lens cleaning tool according to claim 11, which is not provided on the side.
When the long member is inserted into the treatment instrument insertion channel of the endoscope and protrudes from the distal end of the endoscope, the color of the cleaning member includes a position facing the lens surface of the endoscope and a position on the opposite side. The lens cleaning tool for endoscopes according to claim 11, which is different from the above.
The endoscope lens cleaning tool according to any one of claims 1 to 15, wherein the long member is a hollow tube member and has an opening at a portion where the long member cleaning member is provided.
The endoscope lens cleaning tool according to any one of claims 1 to 16, wherein a flexible portion having a hardness lower than that of an endoscope lens is provided at a distal end portion of the cleaning member.
The endoscope lens cleaning tool according to any one of claims 1 to 17, wherein the cleaning member is a brush.
The endoscope lens cleaning tool according to any one of claims 1 to 18, wherein a material of the cleaning member is an elastomer.
The endoscope lens cleaning tool according to any one of claims 1 to 19, wherein a material of the cleaning member is a biodegradable resin.