Endoscope device

Abstract

To improve such a disadvantage of prior art that an insertion part may be bent unexpectedly in an endoscope apparatus.SOLUTION: An endoscope apparatus includes an insertion part 3 including: a bendable insertion tube 31 formed into a slender hollow tubular shape so as to have an internal space 30; a camera lens unit 32 installed to a tip of the insertion tube 31 to perform imaging; a support unit 33 installed to the internal space 30 of the insertion tube 31. The support unit 33 includes a support bracket 331 fixed inside the internal space 30 of the insertion tube 31 so as to extend along an extension direction X of the insertion tube 31 and bendable together with the insertion tube 31.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to medical devices, and more particularly to an endoscope device.

Background Art

[0002] Conventional endoscopes have an insertion portion that is a slender flexible hollow tube, and is supported by a sleeve that forms the outer contour of the insertion portion so that the shape is maintained. However, since the sleeve forms the outer contour of the insertion portion and can come into contact with body tissues, there are limitations in its structure and material, and thus it is difficult to configure it to provide sufficient supporting force, and it easily bends together with the hollow tube. Therefore, when performing, for example, gastrostomy or urethral catheter installation using an endoscope, there is a problem that the insertion portion of the conventional endoscope may unexpectedly bend due to its flexibility, increasing the difficulty of the procedure.

[0003] For example, when inserting a transnasal catheter using an endoscope, in order to guide the catheter with the insertion portion of the endoscope, it is necessary for the insertion portion of the endoscope to have a certain supporting force. However, upper gastrointestinal endoscopes generally have a diameter of 1 cm, and those for transnasal use are as thin as 0.5 cm, and the distance from the tip (insertion end) to the support point is, for example, 60 cm, so it is difficult to obtain sufficient supporting force.

Prior Art Documents

Non-Patent Documents

[0004]

Non-Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] Therefore, an object of the present invention is to provide an endoscope device that can improve at least one of the drawbacks of the above-described conventional technology.

Means for Solving the Problems

[0006] Therefore, the present invention provides an insertion portion including a flexible insertion tube formed in an elongated hollow tubular shape so as to have an internal space, a camera lens unit provided at a distal end of the insertion tube for imaging, and a support unit provided in the internal space of the insertion tube, wherein the support unit has a support bracket fixed in the internal space of the insertion tube so as to extend along the extending direction of the insertion tube and being bendable together with the insertion tube.

Advantages of the Invention

[0007] According to the present invention, since the support unit provided in the internal space of the insertion tube has a support bracket fixed in the internal space of the insertion tube so as to extend along the extending direction of the insertion tube and being bendable together with the insertion tube, it becomes easy to apply sufficient supporting force to the insertion tube in the extending direction of the insertion tube. Therefore, when inserting, for example, a medical tube or a catheter using the endoscope device, unexpected bending is prevented, and the insertion operation of the tube or the catheter becomes easy.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

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Figure 8

Figure 9

Mode for Carrying Out the Invention

[0009] Hereinafter, the present invention will be described in detail with reference to an example of an embodiment. In the following description, terms indicating directions such as up and down, left and right, front and back are used only for convenience of explanation in combination with the drawings, and are not used with the intention of limiting the present invention.

[0010] In FIGS. 1, 2, and 3, an embodiment of an endoscope apparatus 200 according to the present invention is shown. The endoscope apparatus 200 is used, for example, for inserting a nasal catheter into the stomach or duodenum, or for passing a catheter from the urethra to the bladder. The endoscope apparatus 200 includes an insertion portion 3, an operation portion 4 connected to the end portion (rear end) of the insertion portion 3, and a suction mechanism 5 and a delivery mechanism 6 disposed in the insertion portion 3 and the operation portion 4.

[0011] The insertion portion 3 is formed into a flexible hollow tubular shape so as to have an extending direction X which is a tube axis direction and, that is, an internal space 30 which is a lumen, and includes an insertion tube 31, a camera lens unit 32 provided at the tip (insertion end) of the insertion tube 31 for imaging, and a support unit 33 provided in the internal space 30 of the insertion tube 31.

[0012] The insertion tube 31 is made of, for example, a silicone material, a rubber material, or other soft and deformable medical use materials, and has a tube main body portion 311 formed in a hollow tubular shape, and a tube tip portion 312 that extends further in a hollow tubular shape from the tip of the tube main body portion 311 and whose extending end is a sealed end. An internal space 30 that is continuous with the tube main body portion 311 and the tube tip portion 312 is defined. In order to make the tube tip portion 312 more easily bendable than the tube main body portion 311, a spiral groove 310 formed in a spiral shape along the extending direction X of the insertion tube 31 is provided on at least one of the outer peripheral surface and the inner peripheral surface thereof. In this embodiment, as shown in FIG. 3 for example, the spiral groove 310 is provided on both the outer peripheral surface and the inner peripheral surface of the tube tip portion 312, but it may be provided on only one of the surfaces.

[0013] On the inner peripheral surface 31a facing the internal space 30 of the insertion tube 31, a plurality of inner annular grooves 314 that are spaced apart from each other in the extending direction X of the insertion tube 31 and extend in the circumferential direction of the insertion tube 31 are provided. Similarly, on the outer peripheral surface 31b on the opposite side of the inner peripheral surface 31a, a plurality of outer annular grooves 313 that are spaced apart from each other in the extending direction X of the insertion tube 31 and extend in the circumferential direction of the insertion tube 31 are provided. Each of the inner annular grooves 314 and each of the outer annular grooves 313 are provided in a position corresponding to each other in the radial direction orthogonal to the extending direction X of the insertion tube 31, one pair at a time as shown in the figure.

[0014] The camera lens unit 32 is provided so as to be exposed on the front end surface of the tube tip portion 312 of the insertion tube 31, and as shown in FIG. 3, a mounting seat 321 that is fixed so as to be fitted into the internal space 30 at the tube tip portion 312, an imaging means 322 that is attached to the mounting seat 321 and includes a lens for photographing an image in front of the tube tip portion 312, and a plurality of illumination means 323 that are provided on the mounting seat 321 so as to surround the imaging means 322 and emit light toward the front of the tube tip portion 312. The specific configuration of the camera lens unit 32 for performing imaging in the endoscope device is well known in the field of endoscope technology and there are a wide variety of types. Therefore, in the present invention, various conventional ones can also be appropriately used, and the description of its specific configuration is omitted.

[0015] As shown in FIGS. 2, 3, and 4, the support unit 33 is fixed within the internal space 30 of the insertion tube 31 so as to extend along the extension direction X of the insertion tube 31 and is bendable together with the insertion tube 31. The support unit 33 includes a support bracket 331 and a fixture 335. The support bracket 331 is inserted through the insertion tube 31 along a radial direction orthogonal to the extension direction X and is fixed to the support bracket 331, thereby fixing the insertion tube 31 and the support bracket 331 to each other.

[0016] More specifically, the support bracket 331 includes a bendable support rod 332 that extends coaxially with the insertion tube 31 and has one end connected and fixed to the mounting seat 321 of the camera lens unit 32, and a support base 333 that is formed so as to project from the support rod 332 toward the radial direction of the insertion tube 31 and is fixed to the inner peripheral surface 31a of the insertion tube 31. In the present embodiment, as shown in the figure, the support bracket 331 has a plurality of support bases 333, and these support bases 333 are arranged at intervals in the extension direction X of the insertion tube 31. Note that one end of the support rod 332 is removably fixed to the mounting seat 321 of the camera lens unit 32 in the present embodiment.

[0017] Each support base 333 is formed in a disk shape, and its periphery is fitted into a corresponding one of the inner annular grooves 314 on the inner peripheral surface 31a of the insertion tube 31, so as to be in close contact with the inner peripheral surface 31a of the insertion tube 31. Further, a plurality of through holes 334 are formed in each support base 333 such that the positions of the through holes 334 are aligned in the extension direction X between the support bases 333.

[0018] In this embodiment, the fixture 335 is fixed to the support base 333 of the support bracket 331. Therefore, corresponding to the plurality of support bases 333, there are also a plurality of fixtures 335. Each fixture 335 has its both ends inserted through the insertion tube 31 so as to be located inside the outer annular groove 313 and the inner annular groove 314 respectively, and is fixed to the corresponding support base 333. As an example, the fixture 335 is a screw. The insertion tube 31 is inserted along the radial direction and removably screwed to the support base 333 such that the head is exposed inside the outer annular groove 313, thereby fixing the insertion tube 31 and the support base 333 to each other. Further, a ring member 34 is fitted into each outer annular groove 313 where the head of the fixture 335 is located so as to cover the exposed head of the fixture 335. The ring member 34 is made of, for example, a silicone material, and is fitted into the outer annular groove 313 so as to cover the fixture 335 from the outside, thereby preventing the fixture 335 from falling off.

[0019] In one embodiment, the support rod 332 is formed as a solid rod by metal (such as a shape memory alloy) or plastic. The material of the support base 333 may be the same as or different from the material of the support rod 332. Also, in this embodiment, one end of the support rod 332 is configured to be removably fixed to the mounting seat 321 of the camera lens unit 32 as described above, and screwing can be used as such a fixing method. As a further modification, the support rod 332 may be fixed to be non-removable from the mounting seat 321, or may be configured to be continuous with the mounting seat 321 integrally.

[0020] As another embodiment, the support rod 332 may be formed in a hollow tubular shape as shown in FIG. 7, or may be formed in a coil spring shape as shown in FIG. 8.

[0021] As shown in FIGS. 1, 3, and 4, the operation unit 4 includes an operation handle 41 connected to the rear ends of the insertion unit 3, more specifically, the rear ends of the insertion tube 31 and the support rod 332, an angle adjustment module 42 provided on the operation handle 41 and connected to the support unit 33, and a universal cord 43 attached to the operation handle 41 and signal-connected to the camera lens unit 32.

[0022] In this embodiment, the angle adjustment module 42 includes two traction wires 421 that extend along the extension direction X of the insertion tube 31 through different through holes 334 of the support base 333 and are connected to the mounting seat 321 of the camera lens unit 32, and an angle knob 422 attached to the outside of the operation handle 41 and connected to the traction wire 421. By operating the angle knob 422 to pull or retract the traction wire 421, the support bracket 331 can be bent, thereby bending the insertion tube 31 together with the support bracket 331 to enable the insertion operation of the distal end of the insertion tube 31 into the patient's body cavity. Since such an angle adjustment mechanism in the endoscope device is well known to those skilled in the art and there are many types, further description is omitted for the sake of brevity.

[0023] The suction mechanism 5 includes a suction tube 51 disposed in the operation handle 41 and the internal space 30, and a suction valve 52 attached to the operation handle 41 and connected and communicating with the suction tube 51. The suction tube 51 extends along the extension direction X of the insertion tube 31 through the through hole 334 of the support base 333 in the internal space 30, one end is exposed at the distal end of the insertion tube 31 (see FIG. 2), and the other end is connected to the suction valve 52 in the operation handle 41. The suction valve 52 is operably provided to communicate with a suction device (not shown) for sucking gas or liquid at the distal end of the insertion tube 31 through the suction tube 51.

[0024] The delivery mechanism 6 includes a delivery tube 61 disposed within the operation handle 41 and the internal space 30, and a liquid delivery valve 62 and a gas delivery valve 63 attached to the operation handle 41 and connected and communicating with the delivery tube 61. The delivery tube 61 extends through a through-hole 334 other than the through-hole 334 through which the suction tube 51 of the support base 333 passes within the internal space 30, extends along the extension direction X of the insertion tube 31, has one end exposed at the tip of the insertion tube 31 (see FIG. 2), and the other end is connected to the liquid delivery valve 62 and the gas delivery valve 63 at the operation handle 41. The liquid delivery valve 62 is operably provided to communicate with a liquid pump device (not shown) so that liquid can be ejected at the tip of the insertion tube 31 via the delivery tube 61. The gas delivery valve 63 is operably provided to communicate with a gas pump device (not shown) so that gas can be ejected at the tip of the insertion tube 31 via the delivery tube 61.

[0025] Note that the suction mechanism 5 and the delivery mechanism 6 are also well known to those skilled in the art in the technical field of endoscope devices and there are many types thereof, so further description is omitted for the sake of brevity of the description.

[0026] According to the endoscope device 200 of the present invention configured as described above, the support unit 33 provided in the internal space 30 of the insertion tube 31 has a support bracket 331 fixed within the internal space 30 of the insertion tube 31 so as to extend along the extension direction X of the insertion tube 31 and is bendable together with the insertion tube 31. Therefore, it becomes easy to apply sufficient supporting force to the insertion tube 31 in its extension direction X.

[0027] When the endoscope device 200 of the present embodiment is used for inserting a tube such as a nasal tube or a catheter, the insertion portion 3 is inserted into the tube, and the insertion portion 3 and the tube are inserted into the patient's body. At this time, since the support unit 33 provided in the internal space 30 of the insertion tube 31 as described above provides sufficient supporting force during the insertion of the tube, it is prevented from being bent unexpectedly, and the insertion operation of the tube becomes easy.

[0028] As shown in FIG. 3, a specific example is shown in which a plurality of support bases 333 are arranged at intervals in the extending direction X of the insertion tube 31 as described above. The number of support bases 333 can be appropriately changed as needed in consideration of the structural strength of the support bracket 331 and the connection strength between the support bracket 331 and the insertion tube 31. For example, only one support base 333 may be provided at the tip or middle part of the support rod 332 (see FIG. 5), or it is also possible to configure the support bracket 331 only with the support rod 332 without providing the support base 333 (see FIGS. 6 to 8). In addition, in the example shown in FIG. 5, only one support base 333 is provided at the tip of the support rod 332 and is integrally connected to the mounting seat 321 of the camera lens unit 32. In such an example, the traction wire 421 of the angle adjustment module 42 is connected to the support base 333 that is integrated with the mounting seat 321. Even if the number of support bases 333 is only one or the support base 333 is not provided as in the above example, in the present invention, the support rod 332 can provide the necessary supporting force for the support bracket 331 with respect to the insertion tube 31.

[0029] In addition, the support base 333 can also be configured such that its periphery is directly fixed to the inner peripheral surface 31a of the insertion tube 31, for example, by adhesion. In this case, the ring member 34 and the fixture 335 can be omitted.

[0030] Furthermore, in the above embodiment, the support base 333 is disc-shaped and its entire periphery is in close contact with the inner peripheral surface 31a of the insertion tube 31. However, it is not limited to this. As a modification, the support base 333 may be configured in a triangular plate shape having three arc-shaped corners in contact with the inner peripheral surface 31a of the insertion tube 31. In this case, the fixture 335 can be provided so as to penetrate the insertion tube 31 and be screwed to the corner of the support base 333. Furthermore, the support base 333 may be configured in a rectangular plate shape including two arc-shaped corners in contact with the inner peripheral surface 31a of the insertion tube 31. In this case as well, the fixture 335 can be provided so as to penetrate the insertion tube 31 and be screwed to the corner of the support base 333.

[0031] FIG. 9 shows the insertion section 3 in another embodiment of the endoscope apparatus 200 according to the present invention. This embodiment is similar to the above-described embodiment, but differs in that a sleeve member 35 is installed on the insertion section 3 so as to extend along the extending direction X of the insertion tube 31 and cover the fixture 335 while being put on the insertion tube 31.

[0032] The sleeve member 35 is a thin film made of a medical material such as a silicone material or a rubber material, and is formed in a tubular shape so as to have a shape corresponding to the outer contour of the insertion tube 31, and is provided so as to cover the tube main body portion 311 and the tube tip portion 312. Thus, the fixture 335 is also covered, and it is possible to prevent the fixture 335 from accidentally falling off during the insertion of the insertion section 3 into the body. In this embodiment, the ring member 34 is unnecessary.

[0033] In actual use, the endoscope apparatus 200 can be used together with, for example, a Foley catheter having a length of about 5 to 25 cm. In this case, the length of the insertion section 3 can be designed to be slightly longer than that of the Foley catheter. When the insertion section 3 is relatively short, it is not necessary to bend the support bracket 331 and the insertion tube 31 by operation, so the angle adjustment module 42 becomes unnecessary.

[0034] As described above, in the endoscope apparatus 200, the support bracket 331 of the support unit 33 is provided so as to be fixed in the internal space 30 of the insertion tube 31, so that the support unit 33 is configured to give sufficient support force to the insertion tube 31 in the extending direction X of the insertion tube 31. Therefore, when inserting a medical tube or a catheter, for example, with the endoscope apparatus 200, accidental bending is prevented, and the insertion work of the tube or the catheter becomes easy. Therefore, the object of the present invention can be surely achieved.

[0035] The examples of the embodiments of the present invention have been described above. However, the present invention is not limited to these, and includes all modifications and equivalent configurations as various configurations included within the spirit and scope of the broadest interpretation. For example, each of the above embodiments, each example, and the examples shown in each drawing can be combined with each other to form an embodiment of the present invention.

Industrial Applicability

[0036] The endoscope device according to the present invention can facilitate the insertion operation of a tube or a catheter, and thus can be applied to various endoscope devices used in various medical procedures.

Explanation of Reference Numerals

[0037] 200 Endoscope device 3 Insertion portion 30 Internal space 31 Insertion tube 31a Inner peripheral surface 31b Outer peripheral surface 310 Spiral groove 311 Tube main body portion 312 Tube tip portion 313 Outer annular groove 314 Inner annular groove 32 Camera lens unit 321 Mounting seat 322 Imaging means 323 Lighting means 33 Support unit 331 Support bracket 332 Support rod 333 Support base 334 Through hole 335 Fixture 34 Ring member 35 Sleeve member 4 Operation portion 41 Operation handle 42 Angle adjustment module 421 Traction wire 422 Angle knob 43 Universal cord 5 Suction mechanism 51 Suction tube 52 Suction valve 6 Delivery mechanism 61 Delivery tube 62 Liquid delivery valve 63 Gas delivery valve X Extension direction

Claims

1. A bendable insertion tube formed in an elongated hollow tubular shape so as to have an internal space, a camera lens unit provided at the tip of the insertion tube for imaging, and a support unit provided in the internal space of the insertion tube, comprising an insertion part, the support unit having a support bracket bendable together with the insertion tube, the support bracket having a bendable support rod disposed in the internal space of the insertion tube so as to extend along the extending direction of the insertion tube, and at least one support base formed in a disk shape, the support base being formed so as to project from the support rod in a radial direction orthogonal to the extending direction of the insertion tube and being fixed to the inner peripheral surface of the insertion tube, the support unit further having a fixture that inserts through the insertion tube along the radial direction to fix the insertion tube and the support base to each other, an outer annular groove extending in the circumferential direction of the insertion tube is formed on the outer peripheral surface of the insertion tube, a part of the fixture is exposed in the outer annular groove, and a ring member is fitted therein to cover the part of the fixture, An endoscope device.

2. A bendable insertion tube formed in an elongated hollow tubular shape so as to have an internal space, a camera lens unit provided at the tip of the insertion tube for imaging, and a support unit provided in the internal space of the insertion tube, comprising an insertion part, the support unit having a support bracket bendable together with the insertion tube, the support bracket having a bendable support rod disposed in the internal space of the insertion tube so as to extend along the extending direction of the insertion tube, and at least one support base formed in a disk shape, the support base being formed so as to project from the support rod in a radial direction orthogonal to the extending direction of the insertion tube and being fixed to the inner peripheral surface of the insertion tube, the support unit further having a fixture that inserts through the insertion tube along the radial direction to fix the insertion tube and the support base to each other, a sleeve member is installed in the insertion part so as to extend along the extending direction of the insertion tube and cover the insertion tube to cover the fixture, An endoscope device.

3. An insertion part including a bendable insertion tube formed in an elongated hollow tubular shape so as to have an internal space, a camera lens unit provided at the tip of the insertion tube for imaging, and a support unit provided in the internal space of the insertion tube. The support unit has a support bracket that can be bent together with the insertion tube. The support bracket has a bendable support rod disposed in the internal space of the insertion tube so as to extend along the extending direction of the insertion tube, and at least one support base formed in a disk shape. The support base is formed so as to project from the support rod in a radial direction orthogonal to the extending direction of the insertion tube and is fixed to the inner peripheral surface of the insertion tube. The support bracket has a plurality of the support bases, and these support bases are arranged at intervals in the extending direction of the insertion tube. The support unit further has a plurality of fixtures that respectively insert the insertion tube along the radial direction and fix the insertion tube to each support base. A plurality of outer annular grooves are formed on the outer peripheral surface of the insertion tube at intervals in the extending direction of the insertion tube and extending in the circumferential direction of the insertion tube. A part of the fixture is exposed in each of the outer annular grooves, and a ring member is fitted therein to cover the part of the fixture. An endoscope device.

4. An insertion part including a bendable insertion tube formed in an elongated hollow tubular shape so as to have an internal space, a camera lens unit provided at the tip of the insertion tube for imaging, and a support unit provided in the internal space of the insertion tube. The support unit has a support bracket that can be bent together with the insertion tube. The support bracket has a bendable support rod disposed in the internal space of the insertion tube so as to extend along the extending direction of the insertion tube, and at least one support base formed in a disk shape. The support base is formed so as to project from the support rod in a radial direction orthogonal to the extending direction of the insertion tube and is fixed to the inner peripheral surface of the insertion tube. The insertion part further includes a suction mechanism including a suction tube disposed in the internal space. A through hole is formed in the support base. The suction tube is provided so as to pass through the through hole of the support base and extend along the extending direction of the insertion tube, and one end thereof is exposed at the tip of the insertion tube. Endoscope device.

5. The endoscope device further includes a delivery mechanism including a delivery tube disposed in the internal space. A plurality of through holes are formed in the support base. The delivery tube is provided so as to pass through a through hole of the support base other than the through hole through which the suction tube of the support base passes, extend along the extending direction of the insertion tube, and one end thereof is exposed at the tip of the insertion tube. The endoscope device according to claim 4.

6. An insertion portion including a bendable insertion tube formed in an elongated hollow tubular shape so as to have an internal space, a camera lens unit provided at the tip of the insertion tube for imaging, and a support unit provided in the internal space of the insertion tube. The support unit has a support bracket that can be bent together with the insertion tube. The support bracket has a bendable support rod disposed in the internal space of the insertion tube so as to extend along the extending direction of the insertion tube, and at least one support base formed in a disc shape. The support base is formed so as to project from the support rod in a radial direction orthogonal to the extending direction of the insertion tube and is fixed to the inner peripheral surface of the insertion tube. One end of the support rod is fixed to the camera lens unit. The insertion portion further includes an operation unit connected to the rear end thereof and capable of bending the support bracket by being operated. The other end of the support rod is connected to the operation unit. The insertion tube has a hollow tubular tube main body portion whose rear end is connected to the operation unit, and a tube tip portion that extends further in a hollow tubular shape from the tip of the tube main body portion and whose extending end is a sealed end. The camera lens unit is provided so as to be exposed on the tip surface of the tube tip portion. At least one of the outer peripheral surface and the inner peripheral surface of the tube tip portion is provided with a spiral groove formed in a spiral shape along the extending direction of the insertion tube. Endoscope device.

7. One end of the support rod is removably fixed to the camera lens unit. The endoscope device according to claim 6. Claim 8: An insertion portion comprising a bendable insertion tube formed in an elongated hollow tubular shape so as to have an internal space, a camera lens unit provided at a tip of the insertion tube for imaging, and a support unit provided in the internal space of the insertion tube. The support unit has a support bracket bendable together with the insertion tube. The support bracket has a bendable support rod disposed in the internal space of the insertion tube so as to extend along the extending direction of the insertion tube, and at least one support base formed in a disk shape. The support base is formed so as to project from the support rod in a radial direction orthogonal to the extending direction of the insertion tube and is fixed to the inner peripheral surface of the insertion tube. The support unit further has a fixture that inserts through the insertion tube along the radial direction to fix the insertion tube and the support base to each other. The fixture inserts through the insertion tube along the radial direction and is removably screwed to the support base. An endoscope device. Claim 9: An insertion portion comprising a bendable insertion tube formed in an elongated hollow tubular shape so as to have an internal space, a camera lens unit provided at a tip of the insertion tube for imaging, and a support unit provided in the internal space of the insertion tube. The support unit has a support bracket bendable together with the insertion tube. The support bracket has a bendable support rod disposed in the internal space of the insertion tube so as to extend along the extending direction of the insertion tube, and at least one support base formed in a disk shape. The support base is formed so as to project from the support rod in a radial direction orthogonal to the extending direction of the insertion tube and is fixed to the inner peripheral surface of the insertion tube. The support bracket has a plurality of the support bases, and these support bases are arranged at intervals in the extending direction of the insertion tube. The support unit further has a plurality of fixtures that insert through the insertion tube along the radial direction respectively to fix the insertion tube to each of the support bases. The fixture inserts through the insertion tube along the radial direction and is removably screwed to the support base. An endoscope device.

Images