Endoscope angle lock mechanism and endoscope

Abstract

The utility model relates to the technical field of endoscopes, and particularly discloses an endoscope angle lock mechanism and an endoscope. The angle hub is arranged in the shell, and the angle hub comprises a rotating shaft part and a hub part; the angle locking ring is arranged outside the peripheral side of the rotating shaft part in a sleeving mode, and the angle locking ring abuts against the hub part; the peripheral side of the rotating shaft part is sleeved with the adjusting ring, the adjusting ring is arranged on the side, away from the hub part, of the angle locking ring, the adjusting ring abuts against the angle locking ring, and the adjusting ring is provided with adjusting teeth; the driving assembly extends into the shell, the driving assembly is connected with the adjusting teeth in a meshed mode, the driving assembly is used for driving the adjusting ring to rotate, and rotation of the adjusting ring is used for braking the angle hub in the mode that the angle locking ring is pushed to move towards the angle hub; the function of transmission with the driving mechanism and the function of extruding the angle locking ring can be achieved through one structure of the adjusting ring, so that the whole angle locking mechanism is simpler in structure, and a user can use the angle locking mechanism more conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of endoscopes, and particularly relates to an endoscope angle locking mechanism and an endoscope. Background Art

[0002] The body of a medical endoscope generally includes an operation part, an insertion part, a bending part and a head end part; during use, medical staff control an angle adjustment mechanism (including an angle hub) on the operation part according to different observation direction requirements to achieve the bending of the bending part, thereby driving the head end part to turn to the direction to be observed. After reaching the specified direction, it is generally necessary to lock the angle adjustment mechanism to maintain the bending state of the head end part. Therefore, an angle locking mechanism is generally provided on the operation part to achieve the function of locking the angle.

[0003] In the prior art, some angle lock design schemes have been disclosed. For example, in the patent application No. CN112112913 A, the structure of its locking hub is relatively complex and the operation is inconvenient. Specifically, the connecting components for driving the displacement component to displace are relatively complex. For example, the connecting components include an eccentric rotating shaft and an eccentric connecting rod. The displacement component is provided with a groove for placing the eccentric connecting rod, and the displacement component is driven to move by driving mechanisms such as the eccentric rotating shaft and the eccentric connecting rod. The structure and operation of this locking hub are relatively complex.

[0004] Therefore, it has practical value to study an angle locking mechanism and an endoscope with convenient operation and simple structure. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an endoscope angle locking mechanism and an endoscope to solve the problems that the existing endoscope angle locking mechanism and endoscope are relatively complex and the operation is inconvenient.

[0006] To solve the above technical problems, in the first technical solution, the utility model provides an endoscope angle locking mechanism, including:

[0007] A housing;

[0008] An angle hub, the angle hub is arranged in the housing, and the angle hub includes a rotating shaft part and a hub part;

[0009] An angle locking ring, the angle locking ring is sleeved on the outer circumference of the rotating shaft part, and the angle locking ring abuts against the hub part;

[0010] An adjusting ring, the adjusting ring is sleeved on the outer circumference of the rotating shaft part, the adjusting ring is arranged on the side of the angle locking ring away from the hub part, the adjusting ring abuts against the angle locking ring, and the adjusting ring is provided with adjusting teeth;

[0011] A driving component extends into the housing. The driving component is meshed and connected with the adjusting teeth. The driving component is used to drive the adjusting ring to rotate, and the rotation of the adjusting ring is used to brake the angle hub by pushing the angle locking ring towards the angle hub.

[0012] Through the meshing transmission between the driving component and the adjusting teeth, the adjusting ring rotates circumferentially to brake the angle hub by pushing the angle locking ring towards the angle hub. With just one structure of the adjusting ring, the connection function with the driving mechanism and the function of pushing or squeezing the angle locking ring are achieved. The structure is simpler and the operation is more convenient.

[0013] In some embodiments of the first technical solution, a first ramp block is provided on the end face of the adjusting ring, and the first ramp block is provided on the side adjacent to the angle locking ring; a second ramp block is provided on the end face of the angle locking ring, and the second ramp block is provided on the side adjacent to the adjusting ring; the rotation of the adjusting ring is used to stack or separate the first ramp block and the second ramp block. Since the adjusting ring, the angle locking ring, and the angle hub are all clamped between the two end faces of the housing, when the adjusting ring rotates until the first ramp block and the second ramp block are stacked, the adjusting ring squeezes the angle locking ring to move towards the angle hub, and the angle locking ring squeezes the angle hub, so that the rotation of the angle hub is locked.

[0014] In some embodiments of the first technical solution, the housing includes a first housing and a second housing; the first housing and the second housing are detachably connected; the adjusting ring, the angle locking ring, and the angle hub are clamped between the first housing and the second housing. After the adjusting ring, the angle locking ring, and the angle hub are clamped between the first housing and the second housing, the rotation of the adjusting ring can effectively lock the angle of the angle hub.

[0015] In some embodiments of the first technical solution, the driving component includes a transmission gear, a transmission rotating shaft, and an angle lock handle; the transmission gear is meshed and connected with the adjusting teeth, the transmission gear is fixedly connected with the transmission rotating shaft, the transmission rotating shaft rotatably extends out of the housing and is fixedly connected with the angle lock handle. The user rotates the angle lock handle to drive the transmission rotating shaft and the transmission gear to rotate, thereby driving the adjusting ring, with direct control and convenient operation.

[0016] In some embodiments of the first technical solution, the housing is provided with an installation through-hole; the transmission rotating shaft is rotatably installed in the installation through-hole, and the transmission rotating shaft is sealingly connected to the installation through-hole; the angle lock handle is installed outside the installation through-hole, and a stroke blocking member is arranged between the angle lock handle and the end face of the installation through-hole. The stroke blocking member is used to control the rotation amplitude of the transmission rotating shaft. On the one hand, after the sealing connection, the inside of the angle lock mechanism can effectively prevent water; on the other hand, the setting of the stroke blocking member can effectively regulate the rotation amplitude of the transmission rotating shaft, thereby regulating the braking of the angle hub.

[0017] In some embodiments of the first technical solution, the stroke blocking member includes a first mating block and a second mating block; the first mating block is fixedly arranged on the outer end face of the installation through-hole, and the second mating block is fixedly arranged in the angle lock handle; the first mating block is arranged on the rotation stroke of the second mating block. When the angle lock handle rotates and the second mating block rotates until it abuts against the first mating block, the transmission rotating shaft cannot continue to rotate, and the transmission gear cannot continue to rotate either, thereby adjusting the braking amplitude of the angle hub.

[0018] In some embodiments of the first technical solution, it further includes a ferrule and a sealing ring; the ferrule is sleeved on the outer circumference of the transmission rotating shaft, and grease is applied between the ferrule and the transmission rotating shaft; the sealing ring is sleeved on the outer circumference of the transmission rotating shaft, and the sealing ring is arranged inside the ferrule; the ferrule is arranged in the installation through-hole, and the ferrule is fixedly connected to the installation through-hole. The grease and the sealing ring ensure that the transmission rotating shaft and the ferrule can maintain the function of sealed rotation to achieve the waterproofing of the internal structure.

[0019] In some embodiments of the first technical solution, the angle locking ring is connected to the housing in a manner that restricts circumferential rotation. After the circumferential rotation of the angle locking ring is restricted, the rotational cooperation between the first ramp block and the second ramp block is more direct and efficient, avoiding situations similar to "slipping teeth" and optimizing the user's feel during use.

[0020] In some embodiments of the first technical solution, the angle locking ring is provided with a limiting groove; a limiting post is arranged on the inner wall of the housing, and the limiting post penetrates into the limiting groove.

[0021] Second technical solution, the present invention provides an endoscope that applies the endoscope angle lock mechanism described in the first technical solution. The endoscope equipped with the endoscope angle lock mechanism has a simpler structure, more convenient operation, and better waterproof performance, and is widely applicable to a variety of usage scenarios.

[0022] The beneficial effects of the present invention are as follows:

[0023] Since the adjusting ring of this solution is provided with adjusting teeth, and the driving component is meshed and connected with the adjusting teeth, and the adjusting ring is provided with a first ramp block, and the angle locking ring is provided with a matching second ramp block, when in application, the driving component drives the adjusting ring to rotate circumferentially, so that the first ramp block and the second ramp block are stacked, thereby pushing the angle locking ring towards the angle hub, and the angle hub realizes angle locking under the friction between the angle locking ring and the housing. One structure of the adjusting ring can realize the function of transmitting with the driving mechanism and the function of extruding the angle locking ring, making the structure of the entire angle locking mechanism simpler and more convenient for users to use.

[0024] And since the driving component includes a transmission gear and an angle lock handle, and a ferrule is sleeved outside the circumferential side of the rotating shaft part, and sealing oil or sealing paste is provided between the ferrule and the rotating shaft part; the sealing ring is sleeved outside the circumferential side of the rotating shaft part, and the sealing ring is arranged inside the ferrule; the ferrule is arranged in the mounting through hole, and the ferrule is fixedly connected with the mounting through hole, so when in application, it can effectively prevent the internal structure of the housing from entering water, so as to achieve an excellent sealing and waterproof effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0026] Figure 1 is a schematic diagram of the overall structure provided by the preferred embodiment of the present invention;

[0027] Figure 2 is an exploded schematic diagram of the overall structure provided by the preferred embodiment of the present invention.

[0028] The reference numerals are as follows:

[0029] 1. Housing; 10. First housing; 11. Second housing; 12. Mounting through hole; 2. Angle hub; 20. Rotating shaft part; 21. Hub part; 3. Angle locking ring; 30. Second ramp block; 31. Limiting groove; 4. Adjusting ring; 40. First ramp block; 41. Convex wall; 410. Adjusting teeth; 5. Driving component; 50. Transmission gear; 51. Transmission rotating shaft; 52. Angle lock handle; 6. Ferrule; 7. Sealing ring; 8. Stroke blocking member; 80. First mating block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0031] In some currently disclosed technologies, some angle lock design solutions are provided, which have complex structures, inconvenient operations, and generally average waterproof effects.

[0032] To solve the above problems, in this solution, an adjusting ring is designed. The adjusting ring is in transmission connection with the driving mechanism, and the adjusting ring squeezes the angle locking ring, so that a complex connection in the prior art is realized by a connecting component of the adjusting ring.

[0033] Embodiment 1

[0034] Please refer to Figure 1 and Figure 2 , the present utility model provides an endoscope angle lock mechanism, including: a housing 1; an angle hub 2, the angle hub 2 is arranged inside the housing 1, and the angle hub 2 includes a rotating shaft portion 20 and a hub portion 21; an angle locking ring 3, the angle locking ring 3 is sleeved on the outer circumference of the rotating shaft portion 20, and the angle locking ring 3 abuts against the hub portion 21; an adjusting ring 4, the adjusting ring 4 is sleeved on the outer circumference of the rotating shaft portion 20, the adjusting ring 4 is arranged on the side of the angle locking ring 3 away from the hub portion 21, the adjusting ring 4 abuts against the angle locking ring 3, and the adjusting ring 4 is provided with adjusting teeth 410; a driving assembly 5, the driving assembly 5 extends into the housing 1, the driving assembly 5 is in meshing connection with the adjusting teeth 410, the driving assembly 5 is used to drive the adjusting ring 4 to rotate, and the rotation of the adjusting ring 4 is used to brake the angle hub 2 in a manner of pushing the angle locking ring 3 towards the angle hub 2.

[0035] Wherein, the rotating shaft portion 20 of the angle hub 2 extends out of the housing 1 and is connected to the adjusting handle. After adopting this setting method, the rotation angle of the angle hub 2 can be adjusted by rotating the adjusting handle, so as to realize rotation control.

[0036] After adopting this setting method, the user starts the driving assembly 5, and the driving assembly 5 drives the adjusting ring 4 to rotate through meshing with the adjusting teeth 410. The rotation of the adjusting ring 4 pushes the angle locking ring 3 to move towards the angle hub 2, so as to realize the extrusion and stopping of the angle hub 2. The adjusting ring 4 simultaneously completes the functions of being in transmission connection with the driving assembly 5 and pushing the angle locking ring 3. Compared with the eccentric connection structure or the multi-gear transmission structure in the prior art, the transmission structure of the adjusting ring 4 in this solution is simpler and more beneficial to the daily use of the user.

[0037] In order to realize the function that the rotation of the adjusting ring 4 is used to brake the angle hub 2 in a manner of pushing the angle locking ring 3 towards the angle hub 2, as Figure 1 and Figure 2As shown, the adjusting ring 4, the angle locking ring 3 and the angle hub 2 are clamped between the two end faces of the housing. The end face of the adjusting ring 4 is provided with a first ramp block 40, and the first ramp block 40 is arranged on the side adjacent to the angle locking ring 3; the end face of the angle locking ring 3 is provided with a second ramp block 30, and the second ramp block 30 is arranged on the side adjacent to the adjusting ring 4; the rotation of the adjusting ring 4 is used to stack or separate the first ramp block 40 and the second ramp block 30. After adopting this setting method, since the three are clamped in the fixed space enclosed by the outer shell 1, when the adjusting ring 4 rotates, the first ramp block 40 rotates along with it and moves along the second ramp block 30 on the angle locking ring 3. When the first ramp block 40 starts to abut, stack or overlap with the second ramp block 30, the adjusting ring 4 squeezes the angle locking ring 3, causing it to move towards the angle hub 2, thereby squeezing the angle hub 2. Since the angle hub 2 is squeezed by the housing and the angle locking ring 3, the rotation of the angle hub 2 is frictionally restricted.

[0038] For the above-mentioned first ramp block 40 and second ramp block 30, as Figure 1 and Figure 2 shown, the overall structure of the first ramp block 40 is similar to a wedge shape, with a ramp structure from one end to the other end, and one of the end portions can be a table-like structure, and the number of the first ramp blocks 40 on the end face of the adjusting ring 4 can be multiple. Similarly, the overall structure of the second ramp block 30 is the same as that of the first ramp block 40. After adopting this setting method, through the stacking or separating cooperation of the second ramp block 30 and the first ramp block 40, the extrusion adjustment of the angle locking ring 3 by the adjusting ring 4 can be realized, so as to realize the adjustment of the rotation locking of the angle hub 2.

[0039] For the above-mentioned outer shell 1, as Figure 1 and Figure 2 shown, the outer shell 1 includes a first housing 10 and a second housing 11; the first housing 10 and the second housing 11 are detachably connected; the adjusting ring 4, the angle locking ring 3 and the angle hub 2 are clamped between the first housing 10 and the second housing 11. After adopting this setting method, the rotation of the adjusting ring 4 squeezes the angle locking ring 3, thereby squeezing the angle hub 2 to lock its rotation.

[0040] In order to realize the driving component 5 driving the adjusting ring 4 to rotate, as Figure 1 and Figure 2 shown, the driving component 5 includes a transmission gear 50, a transmission rotating shaft 51 and an angle lock handle 52; the transmission gear 50 is meshed and connected with the adjusting tooth 410, the transmission gear 50 is fixedly connected with the transmission rotating shaft 51, and the transmission rotating shaft 51 rotatably extends out of the outer shell 1 and is fixedly connected with the angle lock handle 52. After adopting this setting method, the user rotates the angle lock handle 52, drives the transmission rotating shaft 51 and the transmission gear 50 to rotate, thereby driving the adjusting ring 4, with direct control and convenient operation.

[0041] For the above-mentioned adjusting tooth 410, as Figure 1 and Figure 2 shown, a convex wall 41 is provided on the side wall of the adjusting ring 4, and the adjusting tooth 410 is arranged on the convex wall 41. The convex wall 41 is an arc-shaped convex wall. The adjusting tooth 410 provided on the convex wall 41 is used for meshing connection with the driving assembly 5. The arrangement of the adjusting tooth 410 is various. It can be oriented towards the end face direction of the angle locking ring 3, or towards the direction away from the end face of the angle locking ring 3, or can be arranged on the outer wall of the arc-shaped convex wall 41. Those skilled in the art can select according to requirements by themselves.

[0042] Furthermore, in order to limit the rotation stroke of the adjusting ring 4, as Figure 2 shown, the angle lock handle 52 is installed outside the installation through hole 12, and a stroke blocking member 8 is provided between the angle lock handle 52 and the end face of the installation through hole 12. The stroke blocking member 8 is used to control the rotation amplitude of the transmission rotating shaft. After adopting this setting method, the setting of the stroke blocking member 8 can effectively regulate the rotation amplitude of the transmission rotating shaft 51, thereby adjusting the rotation amplitude of the adjusting ring 4, and further regulating the downward pressure of the angle locking ring 3, and finally realizing the braking regulation of the angle hub 2.

[0043] Specifically, the stroke blocking member 8 includes a first fitting block 80 and a second fitting block (not shown in the figure); the first fitting block 80 is fixedly arranged on the outer end face of the installation through hole 12, and the second fitting block is fixedly arranged on the inner wall of the angle lock handle 52; the first fitting block 80 is arranged on the rotation stroke of the second fitting block. After adopting this setting method, when the angle lock handle 52 rotates and the second fitting block rotates until it abuts against the first fitting block 80, the transmission rotating shaft 51 cannot continue to rotate, and the transmission gear 50 cannot continue to rotate either, thereby adjusting the braking amplitude of the angle hub 2.

[0044] Furthermore, in order to achieve the sealing and waterproof function of the endoscope angle lock mechanism, as Figure 1 and Figure 2 shown, the first housing 10 is provided with an installation through hole 12; the transmission rotating shaft 51 is rotatably installed in the installation through hole 12, and the transmission rotating shaft 51 is hermetically connected to the installation through hole 12. After adopting this setting method, the gap where the transmission rotating shaft 51 extends into the housing is sealed, which can effectively improve the waterproof sealing performance of the internal space of the endoscope housing 1.

[0045] Specifically, as Figure 1 and Figure 2As shown, the endoscope angle lock mechanism further includes a ferrule 6 and a sealing ring 7. The ferrule 6 is sleeved on the outer circumference of the transmission rotating shaft 51, and grease is applied between the ferrule 6 and the transmission rotating shaft 51. The sealing ring 7 is sleeved on the outer circumference of the rotating shaft portion 20, and the sealing ring 7 is arranged inside the ferrule 6. The ferrule 6 is arranged inside the mounting through hole 12, and the ferrule 6 is fixedly connected to the mounting through hole 12. After adopting this setting method, the ferrule 6 is fixedly connected to the mounting through hole 12 to prevent water, grease is applied between the ferrule 6 and the transmission rotating shaft 51, and the sealing ring 7 is sleeved to prevent water, so that a sealed waterproof connection is achieved between the transmission rotating shaft 51 and the mounting through hole 12.

[0046] Further, for the convenience of the user's daily operation, such as Figure 1 and Figure 2 As shown, the axis of the transmission rotating shaft 51 is arranged along the length direction of the housing 1, that is, the angle lock handle 52 is arranged at the top of the housing 1. After adopting this setting method, it is convenient for medical staff to operate the angle adjustment handle and the angle lock handle 52 with one hand.

[0047] For the above-mentioned angle lock handle 52, such as Figure 1 and Figure 2 As shown, the angle lock handle 52 is provided with an anti-slip portion and an arc-shaped pulling portion. The settings of the anti-slip portion and the arc-shaped pulling portion conform to ergonomics and can improve the user's experience.

[0048] For the above-mentioned ferrule 6, such as Figure 1 and Figure 2 As shown, the ferrule 6 is preferably made of a metal material with good wear resistance, including but not limited to high manganese steel, alloy steel, chromium alloy, titanium alloy, and wear-resistant composite metal materials. Those skilled in the art can select according to their needs.

[0049] To improve the angle locking efficiency, such as Figure 1 and Figure 2 As shown, the angle locking ring 3 is connected to the housing 1 in a manner that restricts circumferential rotation. After adopting this setting method, the angle locking ring 3 can only move up and down in the axial direction of the rotating shaft portion 20 and cannot rotate circumferentially. When the adjusting ring 4 rotates, the first ramp block 40 and the second ramp block 30 can be stacked or separated more efficiently.

[0050] Specifically, such as Figure 1 and Figure 2 As shown, the angle locking ring 3 is provided with a limiting groove 31, and a limiting post (not shown in the figure) is provided on the inner wall of the housing 1. The limiting post penetrates into the limiting groove 31. After adopting this setting method, the rotation of the angle locking ring 3 is limited by the limiting post.

[0051] Embodiment 2

[0052] The second embodiment of the present utility model provides an endoscope, which applies the endoscope angle locking mechanism in the first embodiment. Since the endoscope angle locking mechanism has the characteristics of simple structure, simple operation and good waterproof performance, after the endoscope adopts the endoscope angle locking mechanism, it can meet the different application scenario requirements of users and facilitate the daily use of users.

[0053] The above is the preferred implementation manner of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications are also regarded as the protection scope of the present utility model.

Claims

1. An endoscope angle locking mechanism, characterized in that: include: shell; An angle hub, the angle hub is arranged in the housing, and the angle hub comprises a rotating shaft portion and a hub portion; An angle locking ring, which is sleeved on the outer side of the rotating shaft portion and abuts against the hub portion; An adjustment ring, the adjustment ring is sleeved outside the circumference of the rotating shaft portion, the adjustment ring is arranged on a side of the angle locking ring away from the hub portion, the adjustment ring abuts against the angle locking ring, and the adjustment ring is provided with adjustment teeth; A drive assembly extends into the housing, the drive assembly is meshed with the adjustment teeth, the drive assembly is used to drive the adjustment ring to rotate, and the rotation of the adjustment ring is used to brake the angle hub in a manner of pushing the angle locking ring to move toward the angle hub.

2. The endoscope angle locking mechanism according to claim 1, characterized in that: The end surface of the adjustment ring is provided with a first slope block, and the first slope block is provided on a side adjacent to the angle locking ring; The end surface of the angle locking ring is provided with a second slope block, and the second slope block is provided on a side adjacent to the adjustment ring; The rotation of the adjusting ring is used to stack or separate the first ramp block and the second ramp block.

3. The endoscope angle locking mechanism according to claim 2, characterized in that: The housing comprises a first shell and a second shell; The first shell and the second shell are detachably connected; The adjusting ring, the angle locking ring and the angle hub are clamped between the first shell and the second shell.

4. The endoscope angle locking mechanism according to claim 1, characterized in that: The driving assembly includes a transmission gear, a transmission shaft and an angle locking handle; The transmission gear is meshed and connected with the adjusting teeth, and the transmission gear is fixedly connected with the transmission shaft. The transmission shaft can rotatably extend out of the housing and is fixedly connected with the angle locking handle.

5. The endoscope angle locking mechanism according to claim 4, characterized in that: The housing is provided with a mounting through hole; The transmission shaft is rotatably mounted in the mounting through hole, and the transmission shaft is sealed and connected to the mounting through hole; The angle locking handle is installed outside the mounting through hole, and a travel hindering member is provided between the angle locking handle and the end surface of the mounting through hole, and the travel hindering member is used to control the rotation amplitude of the transmission shaft.

6. The endoscope angle locking mechanism according to claim 5, characterized in that: The travel hindering member includes a first matching block and a second matching block; The first matching block is fixedly arranged on the outer end surface of the mounting through hole, and the second matching block is fixedly arranged in the angle locking handle; The first matching block is arranged on the rotation travel of the second matching block.

7. The endoscope angle locking mechanism according to claim 5, characterized in that: Also includes a ferrule and a seal; The ferrule is sleeved on the outer side of the transmission shaft, and grease is applied between the ferrule and the transmission shaft; The sealing ring is sleeved on the outer side of the transmission shaft, and the sealing ring is arranged inside the sleeve; The ferrule is arranged in the mounting through hole, and the ferrule is fixedly connected to the mounting through hole.

8. The endoscope angle locking mechanism according to claim 1, characterized in that: The angle locking ring is connected to the housing in a manner of limiting circumferential rotation.

9. The endoscope angle locking mechanism according to claim 8, characterized in that: The angle locking ring is provided with a limiting groove; A limiting column is arranged on the inner wall of the shell, and the limiting column penetrates into the limiting groove.

10. An endoscope, characterized in that: The endoscope angle locking mechanism described in any one of claims 1 to 9 is applied.

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