Endoscope imaging device, endoscope device, and loading device

Abstract

To provide an endoscope imaging device, an endoscope device, and a loading device capable of suppressing abrasion between components that slide against each other.SOLUTION: An endoscope imaging device having a loading part detachably connected to an eyepiece part of an endoscope for capturing a subject image emitted from the eyepiece part includes: a metal first part; a metal second part having a sliding surface generated by the rotation with the first part; and a resin part composed at least on one of the sliding surfaces with the first part and the second part.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present disclosure relates to an endoscopic imaging device, an endoscopic device, and a mounting device. [Background technology]

[0002] Conventionally, in the medical and industrial fields, there are known endoscopic devices for observing the inside of a subject such as a human being or a mechanical structure. Such an endoscopic device includes an endoscope that captures an image of a subject inside the subject and emits the image from an eyepiece, and an endoscopic imaging device that has a mounting section (coupler section) to which the eyepiece is detachably connected and captures the image of the subject emitted from the eyepiece. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2022-145015 [Patent Document 2] International Publication No. 2016 / 103805 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the rotating motion of the device causes sliding between metal parts, and repeated sliding can result in the generation of metal wear particles on the sliding surfaces.

[0005] Therefore, the present disclosure provides an endoscopic imaging device, an endoscopic device, and an attachment device that are capable of suppressing wear between parts that slide against each other. [Means for solving the problem]

[0006] In order to solve the above problems, according to the present disclosure, An endoscopic imaging device having an attachment part that is detachably connected to an eyepiece part of an endoscope, the image capturing device capturing an image of a subject emitted from the eyepiece part, a first part of metal having a first sliding surface; a second part of metal having a second sliding surface that slides against the first sliding surface; a resin portion formed on at least one of the first sliding surface and the second sliding surface; An imaging device for an endoscope is provided, comprising:

[0007] The second portion may be configured to rotate or be rotatable about a predetermined axis of rotation.

[0008] The predetermined rotation axis may be the optical axis of the endoscope or an axis parallel to the optical axis of the endoscope.

[0009] The resin portion may be provided in a hole formed in at least one of the first sliding surface and the second sliding surface.

[0010] An adhesive may be filled between the hole and the resin portion.

[0011] The mounting portion is The first part; The second part may include:

[0012] The mounting portion includes a mount that holds the endoscope by a locking member; a ring provided on an outer periphery of the mount and capable of moving the locking member into the mount in response to the rotation; The first part may be the mount and the second part may be the ring.

[0013] At least a part of an outer circumferential surface of the mount may be the first sliding surface, and at least a part of an inner circumferential surface of the ring may be the second sliding surface.

[0014] The distance from the rotation axis to the end of the resin part along the inner surface of the ring may be longer than the distance from the rotation axis to the outer surface of the mount, and shorter than the distance from the rotation axis to the end of the resin part along the inner surface of the ring.

[0015] the mount has a protrusion disposed along an outer periphery of the mount and having a first side perpendicular to the axis of rotation; the ring has a movement prevention portion disposed along an inner peripheral surface of the ring, perpendicular to the rotation axis, and having a second side surface that slides against the first side surface; At least a part of the first side surface may be the first sliding surface, and at least a part of the second side surface may be the second sliding surface.

[0016] the mounting portion is rotatably mounted on an outer periphery of an opening of a main body portion of the endoscopic imaging device, The first part may be the mounting part and the second part may be the main body part.

[0017] The mounting portion has an annular portion that is equidistant from a predetermined rotation axis, The main body portion has a clamping portion that clamps the annular portion, The resin portion may be configured on a sliding surface of at least one of the annular portion and the clamping portion.

[0018] The clamping portion clamps the annular portion with three concave surfaces, The resin portion may be provided on at least one of the three surfaces.

[0019] The metal may be at least one of aluminum, an aluminum alloy, stainless steel, titanium, and a titanium alloy.

[0020] In order to solve the above problems, according to the present disclosure, An endoscope and an endoscope imaging device having an attachment part detachably connected to an eyepiece part of the endoscope, the endoscope imaging device capturing an image of a subject emitted from the eyepiece part; Preparation, At least one of the mounting unit and the endoscopic imaging device is a first part made of metal having a first sliding surface; the endoscopic imaging device has a second metal part having a second sliding surface that slides on the first sliding surface, A resin portion is formed on at least one of the first sliding surface and the second sliding surface. An endoscopic device is provided.

[0021] In order to solve the above problems, according to the present disclosure, An attachment device having one end detachably connected to an eyepiece of an endoscope and another end attached to a main body of an endoscopic imaging device that captures an image of a subject emitted from the endoscope, a mount that holds the endoscope by a locking member; a ring provided on an outer periphery of the mount, the ring being capable of moving the locking member into the mount in response to rotation about a predetermined rotation axis; a resin portion formed on at least one of two sliding surfaces where the mount and the ring slide against each other; A mounting device is provided comprising: [Brief description of the drawings]

[0022] [Figure 1] 1 is a diagram showing a schematic configuration of an endoscope apparatus according to an embodiment of the present invention. [Diagram 2] FIG. 2 is an external perspective view of an imaging device for an endoscope. [Diagram 3] FIG. 2 is a side view showing a connection portion between an endoscope and an imaging device for an endoscope. [Figure 4] FIG. 4 is a perspective view showing a configuration example of a mount. [Diagram 5] FIG. 4 is a plan view of the first structure and the ring as viewed from the arrow B side. [Figure 6] 5 is an enlarged view of cross section CC of FIG. 4 in a state where the resin portion is embedded in the hole. [Figure 7] FIG. [Figure 8] FIG. 8 is a diagram showing a part of the cross section DD of FIG. 7. [Figure 9] FIG. 11 is an enlarged cross-sectional view of the sliding range with the resin portion embedded. [Figure 10] FIG. 13 is a diagram showing an example of the configuration of an endoscope apparatus according to a second embodiment. [Figure 11] FIG. 1 is a perspective view showing the appearance of an imaging device for an endoscope. [Figure 12]FIG. 4 is a cross-sectional view of a joint between the imaging device main body and the mounting portion. [Figure 13] 13 is an enlarged cross-sectional view of a region A52 in FIG. 12 with a resin portion embedded therein. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0023] Hereinafter, an embodiment of an endoscopic imaging device, an endoscopic device, and a mounting device will be described with reference to the drawings. The following description will focus on the main components of the endoscopic imaging device, the endoscopic device, and the mounting device, but the endoscopic imaging device, the endoscopic device, and the mounting device may have components and functions that are not shown or described. The following description does not exclude components and functions that are not shown or described.

[0024] (First embodiment) Fig. 1 is a diagram showing a schematic configuration of an endoscope device according to an embodiment of the present invention. The endoscope device 1 is used in the medical field to observe inside a living body. As shown in Fig. 1, the endoscope device 1 includes an endoscope 2, a light source device 3, a light guide 4, an endoscopic imaging device (camera head) 5, a first transmission cable 6, a display device 7, a second transmission cable 8, a control device 9, and a third transmission cable 10.

[0025] The endoscope 2 is a rigid endoscope. That is, the endoscope 2 has an elongated shape in which the entire endoscope 2 is rigid or a part of the endoscope 2 is rigid and the other part of the endoscope 2 is inserted into a living body. As shown in FIG. 1, the endoscope 2 includes an insertion section 21 and an eyepiece section 22. The insertion section 21 extends linearly and is inserted into a living body. The insertion section 21 includes an optical system (not shown) that is configured using one or more lenses and focuses an image of a subject. The eyepiece section 22 is provided at the base end (the right end in FIG. 1) of the insertion section 21. The eyepiece section 22 includes an eyepiece optical system (not shown) that outputs an image of a subject focused by an optical system (not shown) in the insertion section 21 to the outside from the eyepiece section 22. The diameter of the eyepiece section 22 increases toward the base end.

[0026] One end of the light guide 4 is connected to the light source device 3, and under the control of the control device 9, the light guide 4 supplies light for illuminating the inside of a living body to one end of the light guide 4. One end of the light guide 4 is detachably connected to the light source device 3, and the other end is detachably connected to the endoscope 2. The light guide 4 transmits light supplied from the light source device 3 from one end to the other end and supplies it to the endoscope 2. The light supplied to the endoscope 2 is emitted from the tip (left end in FIG. 1) of the endoscope 2 and irradiated into the living body. The light (subject image) irradiated into the living body and reflected within the living body is collected by an optical system (not shown) in the insertion section 21.

[0027] The endoscopic imaging device 5 includes an imaging device main body 51 (FIG. 1) in which an imaging element 511 and the like are stored airtight or watertight, and an attachment part (coupler) 52 that is provided on the imaging device main body 51 and detachably connected to the eyepiece 22 of the endoscope 2. Under the control of the control device 9, the endoscopic imaging device 5 captures an image of a subject focused by the endoscope 2, and outputs an image signal (RAW signal) resulting from the capture. The image signal is, for example, an image signal of 4K or higher. The imaging element 511 is provided on the optical path of light guided by the optical system of the connected endoscope 2. The detailed shape of the attachment part 52 will be described later.

[0028] One end of the first transmission cable 6 is detachably connected to the control device 9 via a connector CN1, and the other end is detachably connected to the endoscopic imaging device 5 via a connector CN2. The first transmission cable 6 transmits image signals and the like output from the endoscopic imaging device 5 to the control device 9, and also transmits control signals, synchronization signals, clocks, power, and the like output from the control device 9 to the endoscopic imaging device 5. Note that the transmission of image signals and the like from the endoscopic imaging device 5 to the control device 9 via the first transmission cable 6 may be performed by transmitting the image signals and the like as optical signals or electrical signals. The same applies to the transmission of control signals, synchronization signals, and clocks from the control device 9 to the endoscopic imaging device 5 via the first transmission cable 6.

[0029] The display device 7 is configured using a display using liquid crystal or organic EL (Electro Luminescence) or the like, and displays a captured image based on a video signal from the control device 9 under the control of the control device 9.

[0030] One end of the second transmission cable 8 is detachably connected to the display device 7, and the other end is detachably connected to the control device 9. The second transmission cable 8 transmits a video signal processed by the control device 9 to the display device 7.

[0031] The control device 9 includes a CPU (Central Processing Unit) and the like, and controls the overall operations of the light source device 3, the endoscopic imaging device 5, and the display device . For example, the control device 9 generates a video signal by performing various processes on the image signal acquired from the endoscopic imaging device 5 via the first transmission cable 6, and outputs the video signal to the display device 7 via the second transmission cable 8. The display device 7 then displays a captured image based on the video signal. The control device 9 also outputs control signals and the like to the endoscopic imaging device 5 and the light source device 3 via the first and third transmission cables 6 and 10.

[0032] One end of the third transmission cable 10 is detachably connected to the light source device 3, and the other end is detachably connected to the control device 9. The third transmission cable 10 transmits a control signal from the control device 9 to the light source device 3.

[0033] Here, the configuration of the mounting section 52 will be described. Fig. 2 is an external perspective view of the endoscopic imaging device 5. As shown in Fig. 2, the endoscopic imaging device 5 according to this embodiment has an operation section 13, an imaging device main body section 51, and a mounting section 52. Fig. 2 shows a state in which the endoscope 2 is not mounted. Fig. 3 is a side view showing the connection portion between the endoscope 2 and the endoscopic imaging device 5. Arrow A indicates the direction from the endoscopic imaging device 5 side toward the eyepiece section 22 side.

[0034] The operation unit 13 is a part that accepts operations by a user such as a doctor (is pressed by the user). The operation unit 13 outputs an operation signal corresponding to an operation of a button by a user such as a doctor to the control device 9. Note that, in the following description, it is assumed that when the endoscope 2 is attached to the attachment part 52, the central axis Ax1 of the endoscope 2 coincides with the central axis Ax2 of the endoscopic imaging device 5.

[0035] The mounting unit 52 includes a mount 521 having a substantially cylindrical shape and a ring 522 provided on the outer periphery of the mount 521 and rotatable about a predetermined rotation axis. For example, the predetermined axis is the central axis Ax2 or a rotation axis substantially parallel to the central axis Ax2. The mounting unit 52 according to this embodiment corresponds to a mounting device. The rotation according to this embodiment includes movements less than 360 degrees. For example, the rotation according to the first embodiment is a rotation less than 360 degrees.

[0036] The mount 521 is made of a metal such as aluminum, an aluminum alloy, stainless steel, titanium, a titanium alloy, etc. The ring 522 is made of a metal such as aluminum, an aluminum alloy, stainless steel, titanium, a titanium alloy, etc.

[0037] In the mounting section 52, an end face on the tip side (left end side in FIG. 2) is provided with a mounting recess that is recessed toward the base end side (right end side in FIG. 2) by a mount 521 and a ring 522, and into which the eyepiece 22 is inserted. When the eyepiece 22 (see FIG. 1) is inserted into the mounting recess and the eyepiece 22 is mounted on the mounting section 52, the central axis Ax1 and the central axis Ax2 of the mounting section 52 coincide with each other. The mount 521 and the ring 522 will be described in detail later.

[0038] Ring 522 is provided with an inclined portion (not shown) that applies a biasing force to locking member 523 against eyepiece portion 22 (see Patent Document 2). The inclined portion is gradually thicker along the circumferential direction of ring 522.

[0039] In the normal state, the elastic force acting between mount 521 and ring 522 in the direction opposite to mark M52 causes the bottom of locking member 523 to be located at a position where the thickness of the inclined portion is thicker. As a result, a force is applied to the bottom of locking member 523 toward central axis Ax2, and locking member 523 protrudes from the inner surface of mount 521 toward central axis Ax2.

[0040] On the other hand, when a user such as a doctor rotates the ring 522 in the direction of the arrow M52 against the elastic force, the bottom of the locking member 523 is located at a position where the thickness of the inclined portion is thin. As a result, the locking member 523 retracts from the central axis Ax2 to the outer periphery and sinks into the mount 521. These forms of the locking member 523 are merely examples and are not limited thereto. For example, when the ring 522 is rotated in the direction of the arrow M52, the locking member 523 may be deformed to an extent that the eyepiece 22 can be inserted.

[0041] The mount 521 is also configured with a rigid scope holding portion 524. The rigid scope holding portion 524 has a convex shape that protrudes toward the central axis Ax2. The side surface on the side where the eyepiece unit 22 is inserted has a flat holding surface. The plane along this holding surface is along an orthogonal line that extends from the central axis Ax2 to the outer periphery.

[0042] As shown in FIG. 3, when the eyepiece 22 is attached to the attachment portion 52, a user such as a doctor rotates the ring 522 in the direction of the arrow M52 to embed the locking member 523 in the mount 521. In this state, the attachment member 221 (see FIG. 1) of the eyepiece 22 is abutted against the pressing surface of the rigid endoscope pressing portion 524, and the force in the direction of the arrow M52 is released. As a result, the locking member 523 protrudes from the mount 521, and the eyepiece 22 is attached to the attachment portion 52 and is in a locked state. To release the lock, a user such as a doctor rotates the ring 522 in the direction of the arrow M52. In this way, when the connection between the endoscope 2 and the endoscopic imaging device 5 is locked, the locking member 523 provided on the mount 521 prevents the endoscope 2 from being detached from the endoscopic imaging device 5. Furthermore, when the eyepiece 22 is attached to the attachment portion 52, the rotation of the ring 522 in the direction of the arrow M52 may cause sliding between the contact surface of the mount 521 and the ring 522. That is, the mount 521 and the ring 522 have sliding surfaces that are generated by the relative rotation of the ring 522 with the mount 521. In this embodiment, even if a resin part is embedded in the sliding surface and sliding occurs between one sliding surface and the other sliding surface via the resin part, the surface having the resin part may be referred to as the sliding surface. In this embodiment, the description is given assuming that three locking members 523 are provided at different positions from each other, but it is sufficient that at least one is provided, and the number can be set arbitrarily. For example, when there is one or two locking members 523, a protrusion that locks the eyepiece 22 may be provided at a position different from the locking member 523. It is sufficient to adopt a configuration in which the locking member 523 is applied to at least one of the parts that lock to the eyepiece 22.

[0043] Here, a configuration example of the mount 521 will be described with reference to Fig. 4 to Fig. 6. Fig. 4 is a perspective view showing a configuration example of the mount 521. Arrow A indicates the direction from the endoscopic imaging device 5 side toward the eyepiece 22 side. Arrow B is the opposite direction to arrow A, and indicates the direction from the eyepiece 22 side toward the endoscopic imaging device 5 side.

[0044] 4, the mount 521 according to this embodiment is a structure having three stages of outer diameters with the central axis Ax2 as the central axis. The structures having these stages of outer diameters have substantially circular inner and outer surfaces. For ease of explanation, the structures will be described below by referring to them in order of the largest outer shape as a first structure 521a, a second structure 521b, and a third structure 521c.

[0045] 5 is a plan view of the first structure 521a and the ring 522 as viewed from the arrow B side. As shown in FIG. 5, the outer surface of the first structure 521a is equidistant from the central axis Ax2 and has a surface that contacts the inner surface of the ring 522. On the other hand, the inner surface of the ring 522 is equidistant from the central axis Ax2 and has a surface that contacts the outer surface of the first structure 521a. A first radius d1 of the outer surface of the first structure 521a that slides with the inner surface of the ring 522 is configured to be smaller than a second radius d2 of the inner surface of the ring 522 that slides with the outer surface of the first structure 521a. This first radius d1 is configured within a range in which the mount 521 and the ring 522 can slide relative to each other and deviation from the central axis Ax2 is suppressed.

[0046] A sliding range W527 caused by the relative rotation between the mount 521 and the ring 522 is the sliding range when attaching or detaching the eyepiece unit 22. This sliding range indicates the sliding range from a state where no force is applied to the ring 522 to a state where the ring 522 is rotated at the maximum rotation angle φ when a force is applied in the direction of the arrow M52 (see FIG. 2).

[0047] 4 again, protrusion 525 has an outer surface along the inner surface of ring 522, and is provided with hole 526 through which locking member 523 passes. Also, first structure 521a has an outer surface provided with hole 528 in which resin part 527 is embedded.

[0048] A protrusion 529 for embedding a screw 530a (see FIG. 7) is formed on the outer surface of the first structure 521a. A screw hole 530 is formed on the surface of the protrusion 529 facing the endoscopic imaging device 5.

[0049] FIG. 6 is an enlarged view of the CC cross-section of FIG. 4 with the resin part 527 embedded in the hole part 528. The resin part 527 is a resin pin made of, for example, a resin material.

[0050] As shown in FIG. 6, the third radius d3 of the resin part 527 in the state where the resin part 527 is embedded in the hole part 528 is the distance from the central axis Ax2 to the outer end face of the resin part 527. The first radius d1 of the outer face that contacts the inner face of the ring 522 of the first structure 521a, the second radius d2 of the inner face that contacts the outer face of the first structure 521a of the ring 522, and the third radius d3 to the outer end face of the resin part 527 have the relationship of d1 < d3 < d2.

[0051] Thereby, in the sliding range W527 shown in FIG. 5, the outer end face of the resin part 527 contacts the inner face of the ring 522. The sliding surface generated by the contact between the surfaces facing each other in the radial direction orthogonal to the central axis Ax2 is sometimes referred to as a radial sliding surface, and its sliding is sometimes referred to as radial sliding. In this way, it becomes a metal-resin sliding, and the slidability of the radial sliding is improved. Also, the generation of metal wear debris on the radial sliding surface is suppressed. As a result, when the mount 521 and the ring 522 rotate relative to each other, the generation of the so-called rattling feeling that can occur due to metal wear is suppressed. Note that the resin part 527 can also be formed on the inner face on the ring 522 side. In this case, the distance to the inner end face on the central axis Ax2 side of the resin part 527 becomes the third radius d3. Also, the shape of the resin part 527 may be any shape as long as the sliding generated by the relative rotation between the mount 521 and the ring 522 becomes a metal-resin sliding.

[0052] Also, in the embedded state where the resin part 527 is embedded in the hole part 528, the gap between the resin part 527 and the hole part 528 is filled with a silicon material 528b. Thereby, the remaining of dirt and the like in the gap is suppressed, and the CDS property (cleaning, disinfection, sterilization) is improved.

[0053] FIG. 7 is an external perspective view of the mounting portion 52. An elastic body 540 is provided on the mounting portion 52. As described above, the rotation of the ring 522 with respect to the mount 521 is restricted by the biasing force of this elastic body 540. The elastic body 540 is, for example, a spring, and is attached to a screw 530a of a protrusion 529 formed on the mount 521 and a screw 541A attached to the ring 522. In a state where the connection between the endoscope 2 and the endoscopic imaging device 5 is locked, the elastic body 540 is in a contracted state. Further, the mount 521 and the ring 522 are restricted from moving in the axial direction along the central axis Ax2 by the protrusion 529 of the mount 521 and the movement prevention portion 522a of the ring 522. In the present embodiment, a sliding surface generated by the axial contact between the mount 521 and the ring 522 may be referred to as an axial sliding surface, and the sliding thereof may be referred to as axial sliding.

[0054] FIG. 8 is a view showing a part of the DD cross section of FIG. 7. As shown in FIG. 8, a sliding range A529a in which the side surface of the protrusion 529 on the movement prevention portion 522a side and the side surface of the movement prevention portion 522a on the protrusion 529 side axially slide is generated.

[0055] FIG. 9 is an enlarged cross-sectional view of the sliding range A529a in a state where the resin portion 530 is embedded. As shown in FIG. 9, the resin portion 530 is embedded in a hole portion 531 on the side surface of the protrusion 529 on the movement prevention portion 522a side.

[0056] Thereby, the axial sliding between the side surface of the protrusion 529 on the movement prevention portion 522a side and the side surface of the movement prevention portion 522a on the protrusion 529 side becomes metal-resin axial sliding, and the slidability of the axial sliding is improved. Further, the generation of metal wear powder on the radial sliding surface is suppressed. As a result, the so-called rattling feeling that may occur due to metal wear is suppressed when the mount 521 and the ring 522 rotate relative to each other.

[0057] Resin part 530 can also be configured on the side surface of movement prevention part 522a on the side of protrusion 529. Furthermore, resin part 527 may have any shape as long as the sliding caused by the relative rotation between mount 521 and ring 522 is metal-resin sliding.

[0058] With resin portion 530 embedded in hole 531, silicon material 531b is filled in the gap between resin portion 530 and hole 531. This prevents contaminants from remaining in the gap, improving CDS properties.

[0059] As described above, according to this embodiment, the resin parts 527, 530 are configured on at least one of the sliding surfaces generated by the relative rotation between the mount 521 and the ring 522. As a result, the sliding generated by the relative rotation between the mount 521 and the ring 522 becomes a metal-resin sliding, improving the sliding properties. In addition, the generation of metal wear powder on the sliding surfaces between the mount 521 and the ring 522 is suppressed. As a result, the generation of so-called roughness that may be generated by metal wear during the relative rotation between the mount 521 and the ring 522 is suppressed.

[0060] Second embodiment The endoscopic imaging device 5a according to the second embodiment differs from the endoscopic imaging device 5 according to the first embodiment in that the imaging device 5a is configured to be rotatable with respect to the eyepiece 232 of the endoscope 23 via an attachment section (coupler) 52a. The differences from the endoscopic imaging device 5 according to the first embodiment will be described below.

[0061] [Overall configuration of endoscope system] Fig. 10 is a diagram showing an example of the configuration of an endoscope device 1a according to the second embodiment. The endoscope device 1a is used in the medical field and is a device for treating (such as incising) biological tissue while observing the inside of a living body. As shown in Fig. 10, the endoscope device 1a includes a resectoscope 2a, an endoscopic imaging device 5a, a display device 7, and a control device 9. Note that the same components as those of the endoscope device 1 according to the first embodiment are given the same numbers and may not be described.

[0062] The resectoscope 2a is a part that is inserted into a living body, captures an image of a subject, and treats living tissue. As shown in FIG. 10, the resectoscope 2a includes a sheath 21, a guide tube 22, an endoscope 23, a resect electrode member 24, and a handle portion 25. The sheath 21 has a cylindrical shape and is a part that is inserted into a living body. The guide tube 22 has an outer diameter dimension smaller than the inner diameter dimension of the sheath 21, and is inserted into the sheath 21 from the base end side (right side in FIG. 10). The guide tube 22 has a tip end side (left side in FIG. 10) fixed to the base end side of the sheath 21 via a mounting member 221 (FIG. 10). Here, the mounting member 221 is provided with a water supply port 222 for injecting a liquid into the sheath 21 and supplying the liquid from the tip end (left end in FIG. 10) of the sheath 21.

[0063] The endoscope 23 is a part that captures a subject image, and includes an insertion section 231 and an eyepiece section 232, as shown in FIG. 10. The insertion section 231 is fixed in the guide tube 22 and inserted into the sheath 21. An optical system that is configured using one or more lenses and focuses the subject image is provided in the insertion section 231. The eyepiece section 232 is connected to the base end (the end on the right side in FIG. 10) of the insertion section 231. An eyepiece optical system (not shown) that outputs the subject image focused by the optical system in the insertion section 231 to the outside from the eyepiece section 232 is provided in the eyepiece section 232. The eyepiece section 232 is formed in a tapered shape that increases in diameter toward the side (right side in FIG. 10) away from the insertion section 231, and the endoscopic imaging device 5a is detachably connected to the portion with the increased diameter.

[0064] Here, as shown in FIG. 10, the eyepiece portion 232 is provided with a light source connector 2322 for connecting a light guide 2321. That is, the light supplied from a light source device (not shown) to the light guide 2321 is supplied to the insertion portion 231 via the eyepiece portion 232. The light supplied to the insertion portion 231 is emitted from the tip (the left end portion in FIG. 10) of the insertion portion 231 and irradiates the living body. The light irradiated into the living body and reflected in the living body (subject image) is taken into the insertion portion 231 from the tip of the insertion portion 231, and is emitted from the eyepiece portion 232 via an optical system (not shown) and an eyepiece optical system (not shown) in the insertion portion 231.

[0065] The resection electrode member 24 is inserted into the sheath 21 via the mounting member 221, and its tip (the left end portion in FIG. 10) protrudes from the tip of the sheath 21. Then, the tip portion of the resection electrode member 24 contacts the biological tissue, and the biological tissue is treated with a high-frequency current. The handle portion 25 is a portion where a doctor or the like grips the resection scope 2a and operates the resection electrode member 24. As shown in FIG. 10, this handle portion 25 includes a fixed ring 251, a slider 252, and a spring member 253. The fixed ring 251 is a portion where a doctor or the like hooks a thumb, and is fixed to the guide tube 22.

[0066] The slider 252 is inserted with the guide tube 22 and is configured to be movable in the left-right direction in FIG. 10 along the guide tube 22. As shown in FIG. 10, the resection electrode member 24 is fixed to the slider 252. That is, the resection electrode member 24 moves forward and backward in the left-right direction in FIG. 10 within the sheath 21 as the slider 252 moves. Further, the slider 252 is provided with a power supply connector 2522 for connecting a high-frequency power supply cord 2521 connected to a high-frequency power supply (not shown). This power supply connector 2522 is electrically connected to the resection electrode member 24 via a lead wire (not shown). Further, as shown in FIG. 10, the slider 252 is provided with a finger hook member 2523 for a doctor or the like to hook a finger other than the thumb and move the slider 252 (move the resection electrode member 24 forward and backward).

[0067] The spring member 253 has a substantially U-shape, one end of which is attached to the fixed ring 251, and the other end of which is attached to the slider 252. The spring member 253 biases the slider 252 in a direction away from the fixed ring 251. That is, the doctor or the like hooks his / her finger on the fixed ring 251 and the finger hook member 2523, and pulls the finger hook member 2523 against the biasing force of the spring member 253, thereby moving the slider 252 to the right in FIG. 10 (moving the resect electrode member 24 to the right in FIG. 10). On the other hand, when the doctor or the like releases his / her finger from the finger hook member 2523, the slider 252 (resect electrode member 24) moves to the left in FIG. 10 due to the biasing force of the spring member 253.

[0068] The endoscopic imaging device 5a is detachably connected to the eyepiece 232 of the resectoscope 2a (endoscope 23). Under the control of the control device 9, the endoscopic imaging device 5a captures an image of a subject taken in by the endoscope 23 (an image of a subject emitted from the eyepiece 232) and outputs an image signal (RAW signal) resulting from the image capture.

[0069] Fig. 11 is a perspective view showing the appearance of an endoscopic imaging device 5a. As shown in Fig. 11, the endoscopic imaging device 5a according to this embodiment has an operation unit 13, an imaging device main body 51a, and a mounting unit 52a. The exterior body 911 is a container-like member made of metal such as aluminum, aluminum alloy, stainless steel, titanium, or titanium alloy.

[0070] 12 is a cross-sectional view of the joint between the imaging device main body 51a and the mounting part 52a. Arrow A indicates the direction from the endoscopic imaging device 5 side toward the eyepiece 22 side. The mounting part 52a has an annular part 524a that is equidistant from a predetermined rotation axis. This rotation axis includes the annular part 524a that is equidistant from, for example, the optical axis Ax0 (Ax2) of the endoscope 23 or a rotation axis that is substantially parallel to the optical axis Ax0 (Ax2).

[0071] The imaging device main body 51a has a clamping portion 511a that rotatably clamps the annular portion 524a. The clamping portion 511a is composed of an end of a side wall 913 of the imaging device main body 51a and a sliding member 914. The sliding member 914 is fixed to the side wall 913 of the imaging device main body 51a on the side close to the mounting portion 52a. Note that the rotation according to this embodiment can be more than 360 degrees. That is, the imaging device main body 51a and the mounting portion 52a can rotate relatively more than 360 degrees.

[0072] The side wall 913 of the imaging device main body 51a is made of a metal such as aluminum, an aluminum alloy, stainless steel, titanium, or a titanium alloy, and the end of the side wall 913 has a circular ring shape. The end of the side wall 913 has a flat surface facing the upper surface of the sliding member 914.

[0073] The sliding member 914 is made of a metal such as aluminum, an aluminum alloy, stainless steel, titanium, or a titanium alloy, and has an annular shape. Moreover, in the sliding member 914, the side surface facing the annular portion 524a has a flat surface facing the optical axis Ax0 of the endoscope 23. Furthermore, in the sliding member 914, the upper surface facing the lower surface of the annular portion 524a has a flat surface.

[0074] As a result, clamping portion 511a rotatably clamps annular portion 524a with three concave surfaces. More specifically, the three concave surfaces are formed by a flat surface at an end of sidewall 913 facing the upper surface of annular portion 524a, a side surface of sliding member 914 facing annular portion 524a, and an upper surface of sliding member 914 facing the lower surface of annular portion 524a.

[0075] In this way, the imaging device main body 51a is configured to be rotatable about the optical axis Ax0 of the endoscope 23 via the mounting part 52a relative to the endoscope 23. Due to the relative rotation between the imaging device main body 51a and the mounting part 52a, a sliding surface is generated on the mounting part 52a with respect to the side wall 912 and the sliding member 914.

[0076] Fig. 13 is an enlarged cross-sectional view of region A52 in Fig. 12 in a state in which resin parts 550, 551, and 552 are embedded. Resin parts 550, 551, and 552 are embedded in the upper surface of ring part 524a, the side surface of sliding member 914 facing the end part of ring part 524a, and the upper surface of sliding member 914 facing the lower surface of ring part 524a, respectively.

[0077] 13, the resin part 550 is embedded in a hole 550a in the upper surface of the annular part 524a. Similarly, the resin part 550 is embedded in a hole 552a in the side surface of the sliding member 914 facing the end part of the annular part 524a. Similarly, the resin part 550 is embedded in a hole 551a in the upper surface of the sliding member 914 facing the lower surface of the annular part 524a.

[0078] As a result, the sliding between mounting portion 52a, side wall 912 of imaging device main body 51a, and sliding member 914 becomes a metal-resin sliding, improving the sliding properties. Note that resin portion 550 can also be configured on the underside of movement prevention portion side wall 912. Similarly, resin portion 551 can also be configured on the underside of mounting portion 52a. Similarly, resin portion 552 can also be configured on the side surface of mounting portion 52a.

[0079] Moreover, with resin portion 550 embedded in hole 550a, the gap between resin portion 550 and hole 550a is filled with silicon material 550b. Similarly, with resin portion 551 embedded in hole 551a, the gap between resin portion 551 and hole 551a is filled with silicon material 551b. Similarly, with resin portion 552 embedded in hole 552a, silicon material 552b is filled in the gap between resin portion 552 and hole 552a. This prevents contaminants from remaining in the gap, improving CDS properties.

[0080] Resin portion 550 may be formed on a flat surface at the end of side wall 913 facing the upper surface of annular portion 524a. Resin portion 552 may be formed on a side surface of annular portion 524a facing the side surface of sliding member 914. Resin portion 551 may be formed on a lower surface of annular portion 524a facing the upper surface of sliding member 914.

[0081] As described above, resin parts 550, 551, and 552 are formed on at least one of the sliding surfaces generated by the relative rotation between the mounting part 52a and the imaging device main body part 51a. Thereby, the sliding generated by the relative rotation between the mounting part 52a and the imaging device main body part 51a becomes metal-resin sliding, and the slidability is improved. In addition, the generation of metal wear debris on the sliding surface between the mounting part 52a and the imaging device main body part 51a is suppressed. As a result, the generation of a so-called rough feeling that may be caused by metal wear is suppressed when the mounting part 52a and the imaging device main body part 51a rotate relative to each other.

[0082] In addition, the present technology can adopt the following configurations.

[0083] (1) An endoscope imaging device having a mounting part detachably connected to the eyepiece part of an endoscope, for imaging a subject image emitted from the eyepiece part, a first metal part having a first sliding surface, a second metal part having a second sliding surface that slides on the first sliding surface, a resin part formed on at least one of the first sliding surface and the second sliding surface, and an endoscope imaging device comprising the same.

[0084] (2) The second part is configured to be rotatable with respect to a predetermined rotation axis, and the endoscope imaging device according to (1).

[0085] (3) The predetermined rotation axis is the optical axis of the endoscope or an optical axis parallel to the optical axis of the endoscope, and the endoscope imaging device according to (2). (4) The resin part is formed in a hole part formed on at least one of the first sliding surface and the second sliding surface, and the endoscope imaging device according to (1).

[0086] (5) An adhesive is filled between the hole part and the resin part, and the endoscope imaging device according to (3).

[0087] (6) The mounting portion is The first part; The imaging device for endoscopes described in (1) above, further comprising the second part.

[0088] (7) The mounting portion includes a mount that holds the endoscope by a locking member; a ring provided on an outer periphery of the mount and capable of moving the locking member into the mount in response to the rotation; The imaging device for endoscopes described in (2), wherein the first part is the mount and the second part is the ring.

[0089] (8) The imaging device for endoscopes described in (7) above, wherein at least a portion of an outer circumferential surface of the mount is the first sliding surface, and at least a portion of an inner circumferential surface of the ring is the second sliding surface.

[0090] (9) The imaging device for endoscopes described in (8) above, wherein the distance from the rotation axis to an end portion along the inner surface of the ring of the resin part is longer than the distance from the rotation axis to the outer surface of the mount, and shorter than the distance from the rotation axis to the end portion along the inner surface of the ring.

[0091] (10) the mount has a protrusion disposed along an outer periphery of the mount and having a first side perpendicular to the optical axis; the ring has a movement prevention portion disposed along an inner circumferential surface of the ring, perpendicular to the optical axis, and having a second side surface that slides against the first side surface; The imaging device for endoscopes according to (7), wherein at least a portion of the first side surface is the first sliding surface, and at least a portion of the second side surface is the second sliding surface.

[0092] (11) the mounting portion is rotatably mounted on an outer periphery of an opening of a main body portion of the endoscopic imaging device, The imaging device for endoscopes described in (1), wherein the first part is the mounting part and the second part is the main body part.

[0093] (12) The mounting portion has an annular portion that is equidistant from the optical axis, The main body portion has a clamping portion that clamps the annular portion, The imaging device for endoscopes according to (9), wherein the resin portion is configured on at least one of a sliding surface of the annular portion and a sliding surface of the clamping portion.

[0094] (13) The clamping portion clamps the annular portion with three concave surfaces, The imaging device for endoscopes according to (12), wherein the resin portion is configured on at least one of the three surfaces.

[0095] (14) The endoscopic imaging device according to (1), wherein the metal is at least one of aluminum, an aluminum alloy, stainless steel, titanium, and a titanium alloy.

[0096] (15) An endoscope and an endoscope imaging device having an attachment part detachably connected to an eyepiece part of the endoscope, the endoscope imaging device capturing an image of a subject emitted from the eyepiece part; Preparation, At least one of the mounting unit and the endoscopic imaging device is a first part made of metal having a first sliding surface; the endoscopic imaging device is configured to be rotatable about a predetermined rotation axis, and has a second metal part having a second sliding surface that slides against the first sliding surface; A resin portion is formed on at least one of the first sliding surface and the second sliding surface. Endoscopic device.

[0097] (16) An attachment device having one end detachably connected to an eyepiece of an endoscope and another end attached to a main body of an endoscopic imaging device that captures an image of a subject emitted from the endoscope, a mount that holds the endoscope by a locking member; a ring provided on an outer periphery of the mount, the ring being capable of moving the locking member into the mount in response to rotation about a predetermined rotation axis; a resin portion formed on at least one of two sliding surfaces where the mount and the ring slide against each other; A mounting device comprising:

[0098] The aspects of the present disclosure are not limited to the above-mentioned individual embodiments, but include various modifications that may be conceived by a person skilled in the art, and the effects of the present disclosure are not limited to the above-mentioned contents. In other words, various additions, modifications, and partial deletions are possible within the scope of the conceptual idea and intent of the present disclosure derived from the contents defined in the claims and their equivalents. [Explanation of symbols]

[0099] 1: endoscopic device, 2, 2a: endoscope, 5, 5a: endoscopic imaging device, 51, 51a: imaging device main body, 52, 52a: mounting part (coupler), 511a: clamping part, 521: mount, 522: ring, 522a: movement prevention part, 523: locking member, annular part: 524a, 529: protrusion, resin part: 527, 530, 550, 551, 552, hole part: 528, 531, 550a, 551a, 552a, 913: side wall, 914: sliding member.

Claims

1. An endoscopic imaging device having an attachment part that is detachably connected to an eyepiece part of an endoscope, the image capturing device capturing an image of a subject emitted from the eyepiece part, a first part of metal having a first sliding surface; a second part made of metal having a second sliding surface that slides against the first sliding surface; a resin portion formed on at least one of the first sliding surface and the second sliding surface; An endoscopic imaging device comprising:

2. The endoscopic imaging device according to claim 1 , wherein the second section is configured to be rotatable about a predetermined rotation axis.

3. The endoscopic imaging device according to claim 2 , wherein the predetermined rotation axis is an optical axis of the endoscope or an axis parallel to the optical axis of the endoscope.

4. The imaging device for endoscopes according to claim 1 , wherein the resin portion is configured in a hole portion formed in at least one of the first sliding surface and the second sliding surface.

5. The imaging device for endoscopes according to claim 4 , wherein an adhesive is filled between the hole and the resin portion.

6. The mounting portion is The first part; and The endoscopic imaging device according to claim 1 , further comprising:

7. The mounting portion includes a mount that holds the endoscope by a locking member; a ring provided on an outer periphery of the mount and capable of moving the locking member into the mount in response to the rotation; The imaging device for an endoscope according to claim 2 , wherein the first part is the mount and the second part is the ring.

8. The imaging device for endoscopes according to claim 7 , wherein at least a part of an outer circumferential surface of the mount is the first sliding surface, and at least a part of an inner circumferential surface of the ring is the second sliding surface.

9. 9. The endoscopic imaging device according to claim 8, wherein a distance from the rotation axis to an end portion along an inner circumferential surface of the ring of the resin part is longer than a distance from the rotation axis to an outer circumferential surface of the mount and shorter than a distance from the rotation axis to an end portion along an inner circumferential surface of the ring.

10. the mount has a protrusion disposed along an outer periphery of the mount and having a first side perpendicular to the axis of rotation; the ring has a movement prevention portion disposed along an inner peripheral surface of the ring, perpendicular to the rotation axis, and having a second side surface that slides against the first side surface; The imaging device for endoscopes according to claim 7 , wherein at least a portion of the first side surface is the first sliding surface, and at least a portion of the second side surface is the second sliding surface.

11. the mounting portion is rotatably mounted on an outer periphery of an opening of a main body portion of the endoscopic imaging device, The endoscopic imaging device according to claim 1 , wherein the first section is the mounting section, and the second section is the main body section.

12. The mounting portion has an annular portion that is equidistant from a predetermined rotation axis, The main body portion has a clamping portion that clamps the annular portion, The imaging device for endoscopes according to claim 11 , wherein the resin portion is configured on at least one of a sliding surface of the annular portion and a sliding surface of the clamping portion.

13. The clamping portion clamps the annular portion with 23 concave surfaces, The imaging device for endoscopes according to claim 12 , wherein the resin portion is configured on at least one of the three surfaces.

14. The endoscopic imaging device according to claim 1 , wherein the metal is at least one of aluminum, an aluminum alloy, stainless steel, titanium, and a titanium alloy.

15. An endoscope and an endoscope imaging device having an attachment part detachably connected to an eyepiece part of the endoscope, the endoscope imaging device capturing an image of a subject emitted from the eyepiece part; Preparation, At least one of the mounting unit and the endoscopic imaging device is a first part made of metal having a first sliding surface; the endoscopic imaging device has a second metal part having a second sliding surface that slides against the first sliding surface, A resin portion is formed on at least one of the first sliding surface and the second sliding surface. Endoscopic device.

16. An attachment device having one end detachably connected to an eyepiece of an endoscope and another end attached to a main body of an endoscopic imaging device that captures an image of a subject emitted from the endoscope, a mount that holds the endoscope by a locking member; a ring provided on an outer periphery of the mount, the ring being capable of moving the locking member into the mount in response to rotation about a predetermined rotation axis; a resin portion formed on at least one of two sliding surfaces where the mount and the ring slide against each other; A mounting device comprising:

Images