Optical fiber bending adjusting device

Abstract

The utility model discloses an optical fiber bending adjusting device. The optical fiber bending adjusting device comprises a shell, an optical fiber conduit, a rotating structure, a transmission assembly and two pulling ropes, the rotating structure is rotationally connected with one end part of the shell; the transmission assembly comprises a first transmission part, a second transmission part and a third transmission part which are in transmission connection in sequence. Thus, the two pulling ropes are arranged at the end of the optical fiber catheter, the other ends of the two pulling ropes are fixed to the first transmission part and the third transmission part respectively, then the first transmission part is driven to move through the rotating structure, the first transmission part drives the second transmission part to rotate, and the second transmission part drives the third transmission part to move. The moving directions of the first transmission part and the third transmission part are opposite, so that the two traction ropes are tensioned one by one and loosened one by one, the optical fiber catheter is driven to be bent, the optical fiber is arranged in the optical fiber catheter in a penetrating manner, the optical fiber is bent along with the optical fiber catheter, and the problem that the bending of the optical fiber cannot be adjusted in a hard endoscope is solved; and the difficulty of a medical operation is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of laser medicine, in particular to an optical fiber bending device. Background Art

[0002] At present, the adjustable bending catheters on the market are not designed for medical laser fibers. When a medical laser fiber that needs to be bent at a certain angle is required, the adjustable bending operation can only be realized through a flexible endoscope at present, and the adjustable bending operation cannot be realized in a rigid endoscope, which increases the difficulty of medical surgery. Content of the Utility Model

[0003] The purpose of the utility model is to provide an optical fiber bending device, which can bend an optical fiber catheter so as to drive the optical fiber to bend, solves the problem that the optical fiber cannot be bent in a rigid endoscope, and reduces the difficulty of medical surgery.

[0004] To achieve this purpose, the utility model adopts the following technical solutions:

[0005] An optical fiber bending device, comprising:

[0006] A housing, which has an installation cavity;

[0007] An optical fiber catheter, part of which is arranged in the installation cavity; an optical fiber is arranged in the optical fiber catheter;

[0008] A rotating structure, which is coaxially arranged with the housing and rotatably connected to one end of the housing;

[0009] A transmission component, which is arranged in the installation cavity. The transmission component includes a first transmission part, a second transmission part and a third transmission part which are sequentially connected in transmission. The rotating structure rotates to drive the first transmission part to move in the axial direction of the housing. The first transmission part drives the second transmission part to rotate, and the second transmission part drives the third transmission part to move in the opposite direction to the first transmission part;

[0010] Two traction ropes, one end of each traction rope is fixedly connected to the end of the optical fiber catheter outside the housing, and the other ends of the two traction ropes are respectively fixed on the first transmission part and the third transmission part.

[0011] In one embodiment, the rotating structure includes a rotating handle and a rotating cylinder which are fixedly connected. The rotating handle is rotatably installed at one end of the housing, and the rotating cylinder is in transmission connection with the first transmission part. The rotating cylinder rotates to drive the first transmission part to move in the axial direction of the housing.

[0012] In one embodiment, the rotating cylinder is provided with an internal thread, and one end of the first transmission member is provided with an external thread matching the internal thread.

[0013] In one embodiment, the second transmission member is a gear, and the first transmission member and the third transmission member are both provided with gear teeth meshing with the gear on a side facing the gear.

[0014] In one of the embodiments, the optical fiber bending device also includes two pulleys installed at intervals in the housing, the two pulleys are located at one end of the transmission assembly away from the rotating structure, and are respectively arranged corresponding to the two traction ropes, and the traction ropes are wound around the corresponding pulleys.

[0015] In one of the embodiments, the optical fiber bending device further includes a wave spring sleeved on the housing.

[0016] In one embodiment, the optical fiber bending device further comprises an optical fiber locking structure, and the optical fiber passes through the optical fiber locking structure;

[0017] The optical fiber locking structure includes a connecting member and a locking member, one end of the connecting member is inserted into the other end of the shell away from the rotating structure; the locking member is sleeved on the other end of the connecting member, and the locking member is provided with a locking groove for locking the end of the optical fiber.

[0018] In one of the embodiments, a silicone piece is provided in the locking groove, and the end of the optical fiber is clamped in the clamping groove of the silicone piece.

[0019] In one of the embodiments, the optical fiber bending device further includes a limiting member, which is installed in the housing and located at an end of the installation cavity away from the rotating structure, and is used to limit the first transmission member and the third transmission member.

[0020] In one embodiment, the housing includes a first shell and a second shell that are detachably connected, and the first shell and the second shell are snapped together to form the installation cavity.

[0021] Beneficial effects of the utility model:

[0022] The utility model provides an optical fiber bending device, which comprises a housing, an optical fiber conduit, a rotating structure, a transmission assembly and two traction ropes. The housing has an installation cavity; part of the optical fiber conduit is arranged in the installation cavity; the optical fiber is arranged in the optical fiber conduit; the rotating structure is coaxially arranged with the housing and is rotatably connected to one end of the housing; the transmission assembly is arranged in the installation cavity and comprises a first transmission member, a second transmission member and a third transmission member which are sequentially connected in transmission. The rotating structure rotates to drive the first transmission member to move in the axial direction of the housing. The first transmission member drives the second transmission member to rotate, and the second transmission member drives the third transmission member to move in the opposite direction to the first transmission member; one end of each traction rope is fixedly connected to the end of the optical fiber conduit outside the housing, and the other ends of the two traction ropes are respectively fixed to the first transmission member and the third transmission member.

[0023] In this way, by arranging two traction ropes at the end of the optical fiber conduit, fixing the other ends of the two traction ropes to the first transmission member and the third transmission member respectively, then driving the first transmission member to move through the rotating structure, the first transmission member drives the second transmission member to rotate, the second transmission member drives the third transmission member to move, and the moving directions of the first transmission member and the third transmission member are opposite, so that one of the two traction ropes is tightened and the other is loosened, which drives the optical fiber conduit to bend. Since the optical fiber is arranged in the optical fiber conduit, the optical fiber also bends along with the optical fiber conduit, solving the problem that the optical fiber cannot be bent in a rigid endoscope and reducing the difficulty of medical surgery. Description of the Drawings

[0024] Figure 1 is an assembly schematic diagram of the optical fiber bending device in an embodiment of the utility model;

[0025] Figure 2 is Figure 1 an assembly schematic diagram of the optical fiber bending device after removing the second housing;

[0026] Figure 3 is Figure 2 a structural schematic diagram of a partial structure of the optical fiber bending device in after being disassembled;

[0027] Figure 4 is Figure 2 a structural schematic diagram of the first housing in .

[0028] Explanation of the Reference Numerals in the Drawings:

[0029] 10. Optical fiber bending device; 11. Housing; 111. Installation cavity; 112. First housing; 113. Second housing; 114. Sliding groove; 115. Slide block; 12. Optical fiber conduit; 13. Rotating structure; 131. Rotating handle; 132. Rotating cylinder; 14. Transmission assembly; 141. First transmission member; 1411. First transmission part; 1412. Second transmission part; 1413. Fixing member; 1414. Pin shaft; 1415. Set screw; 1416. Through hole; 142. Second transmission member; 143. Third transmission member; 144. Gear shaft; 15. Pulley; 16. Wave spring; 17. Optical fiber locking structure; 171. Connecting member; 172. Locking member; 18. Limiting member.

[0030] Among them, due to the long length of the optical fiber conduit, only part of the optical fiber conduit is shown in Figures 1 to 3 . The actual length of the optical fiber conduit can be selected according to needs, and the length of the optical fiber conduit in the figure is only for illustration. Detailed implementation mode

[0031] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0033] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0034] Refer to Figures 1 to 3The utility model provides an optical fiber bending device 10, comprising a housing 11, an optical fiber conduit 12, a rotating structure 13, a transmission assembly 14, and two traction ropes (not shown in the figure). The housing 11 has an installation cavity 111; the optical fiber conduit 12 is partially arranged in the installation cavity 111; the optical fiber (not shown in the figure) is inserted into the optical fiber conduit 12; the rotating structure 13 is coaxially arranged with the housing 11 and is rotatably connected to one end of the housing 11; the transmission assembly 14 is arranged in the installation cavity 111, and the transmission assembly 14 comprises a first transmission member 141, a second transmission member 142, and a third transmission member 143 which are sequentially connected in transmission; the rotating structure 13 rotates to drive the first transmission member 141 to move in the axial direction of the housing 11, the first transmission member 141 drives the second transmission member 142 to rotate, and the second transmission member 142 drives the third transmission member 143 to move in the opposite direction of the first transmission member 141; one end of each traction rope is fixedly connected to the end of the optical fiber conduit 12 outside the housing 11, and the other ends of the two traction ropes are respectively fixed to the first transmission member 141 and the third transmission member 143.

[0035] In this embodiment, the optical fiber conduit 12 is partially disposed in the installation cavity 111 , which means that one end of the optical fiber conduit 12 extends into the installation cavity 111 , and the other end of the optical fiber conduit 12 is located outside the housing 11 .

[0036] In this way, two traction ropes are arranged at the end of the optical fiber catheter 12, and the other ends of the two traction ropes are respectively fixed on the first transmission member 141 and the third transmission member 143, and then the first transmission member 141 is driven to move by the rotating structure 13, the first transmission member 141 drives the second transmission member 142 to rotate, and the second transmission member 142 drives the third transmission member 143 to move, and the moving directions of the first transmission member 141 and the third transmission member 143 are opposite, so that one of the two traction ropes is tightened and the other is relaxed, which drives the optical fiber catheter 12 to bend. Since the optical fiber is inserted into the optical fiber catheter 12, the optical fiber also bends with the optical fiber catheter 12, which solves the problem of difficulty in bending the optical fiber during clinical surgery, improves the accuracy of the surgery, and reduces the difficulty of medical surgery.

[0037] Exemplarily, the traction rope may be a steel wire.

[0038] See also Figure 2 and Figure 3 In some embodiments, the rotating structure 13 includes a rotating handle 131 and a rotating cylinder 132 that are fixedly connected. The rotating handle 131 is rotatably installed on one end of the shell 11, and the rotating cylinder 132 is transmission-connected to the first transmission member 141. The rotating cylinder 132 rotates to drive the first transmission member 141 to move in the axial direction of the shell 11.

[0039] Exemplarily, both the rotating handle 131 and the rotating cylinder 132 are in the shape of a structural cylinder. The rotating handle 131 and the rotating cylinder 132 are respectively provided with mounting holes in the diameter direction. The fastener sequentially passes through the mounting holes on the rotating handle 131 and the rotating cylinder 132 to fixedly connect the rotating handle 131 and the rotating cylinder 132. It can be understood that the fastener can be a combination of a screw, a bolt and a nut, and the mounting hole can be selected as a clearance hole or a threaded hole according to the type of the fastener. Of course, the rotating handle 131 and the rotating cylinder 132 can also be fixedly connected by other means, which will not be limited too much here, as long as the use requirements can be met.

[0040] In this embodiment, in order to achieve limiting, the end of the outer shell 11, the rotating handle 131 and the rotating cylinder 132 are arranged in a stepped cylinder shape, and a corresponding boss structure is also arranged inside the rotating handle 131 to limit the movement of the rotating handle 131 and the rotating structure 13 in the axial direction of the outer shell 11 during assembly.

[0041] Refer to Figure 3 , in some embodiments, the rotating cylinder 132 is provided with an internal thread, and one end of the first transmission member 141 is provided with an external thread that mates with the internal thread. Rotating the rotating handle 131 drives the rotating cylinder 132 fixedly connected thereto to rotate, and the rotating cylinder 132 drives the first transmission member 141 to move.

[0042] Refer to Figure 2 and Figure 3 , in some embodiments, the second transmission member 142 is a gear, and both the first transmission member 141 and the third transmission member 143 are provided with teeth meshing with the gear on the side facing the gear. Specifically, a gear shaft 144 is fixedly installed inside the outer shell 11, and the gear is rotatably sleeved on the gear shaft 144.

[0043] Refer to Figures 2 to 4, Exemplarily, the first transmission member 141 includes a welded first transmission portion 1411 and a second transmission portion 1412. The first transmission portion 1411 is in a semi-cylindrical shape for installing the optical fiber conduit 12. An external thread is provided on the semi-circular outer peripheral surface of the first transmission portion 1411, and the first transmission portion 1411 is threadedly connected to the rotating cylinder 132 to achieve transmission. The second transmission portion 1412 is provided with gear teeth on the side facing the second transmission member 142. The first transmission member 141 further includes a fixing member 1413, a pin shaft 1414, and a set screw 1415. The fixing member 1413 is slidably disposed in the sliding groove 114, and the sliding groove 114 is opened on the inner wall of the installation cavity 111. The fixing member 1413 is fixed by passing a fastening member through the second transmission portion 1412 in the diameter direction of the housing 11 and abutting against the fixing member 1413. The set screw 1415 passes through the second transmission portion 1412 in the direction parallel to the axis of the housing 11 and abuts against the fixing member 1413. By adjusting the set screw 1415, the pre-tightening force of the traction rope can be adjusted. A threading hole 1416 for passing and fixing the traction rope is provided on the portion of the pin shaft 1414 outside the fixing member 1413.

[0044] The difference between the third transmission member 143 and the first transmission member 141 is that no external thread is provided on the third transmission member 143, which will not be elaborated here.

[0045] Refer to Figure 3 and Figure 4 , In this embodiment, two sliders 115 are provided at intervals in the installation cavity 111, and the second transmission portion 1412 and the third transmission member 143 are slidably disposed along the corresponding sliders 115.

[0046] Refer to Figure 2 and Figure 3 , In some embodiments, the optical fiber bending device 10 further includes a limiting member 18. The limiting member 18 is installed in the housing 11 at one end of the installation cavity 111 away from the rotating structure 13 for limiting the first transmission member 141 and the third transmission member 143. When the first transmission member 141 and the third transmission member 143 move, the limiting member 18 can limit the moving range of the first transmission member 141 and the third transmission member 143.

[0047] Refer to Figure 2 and Figure 3 , In some embodiments, the optical fiber bending device 10 further includes two pulleys 15 installed at intervals in the housing 11. The two pulleys 15 are located at one end of the transmission assembly 14 away from the rotating structure 13 and are respectively arranged corresponding to the two traction ropes. The traction ropes are wound around the corresponding pulleys 15.

[0048] It can be understood that the pulleys 15 can be provided as needed. If the length of the traction rope is long, the pulleys 15 can support and limit the traction rope.

[0049] Refer to Figure 3 In some embodiments, the optical fiber bending device 10 further includes a wave spring 16 sleeved on the outer shell 11. The wave spring 16 is located between the outer shell 11 and the rotating handle 131, and can increase the rotating feel.

[0050] Refer to Figure 1 In some embodiments, the optical fiber bending device 10 further includes an optical fiber locking structure 17. The optical fiber passes through the optical fiber locking structure 17. The optical fiber locking structure 17 includes a connecting member 171 and a locking member 172. One end of the connecting member 171 is inserted into the end of the other end of the outer shell 11 away from the rotating structure 13. The locking member 172 is sleeved on the other end of the connecting member 171, and the locking member 172 is provided with a locking groove (not shown in the figure) for locking the end of the optical fiber.

[0051] In some embodiments, a silica gel member (not shown in the figure) is provided in the locking groove, and the end of the optical fiber is clamped in the clamping groove (not shown in the figure) of the silica gel member. Among them, the width of the clamping groove is slightly smaller than the outer diameter of the optical fiber. Since the silica gel member can deform, after the optical fiber is inserted into the clamping groove, the silica gel member can clamp and fix the optical fiber.

[0052] Refer to Figure 1 and Figure 2 In some embodiments, the outer shell 11 includes a first shell 112 and a second shell 113 that are detachably connected. The first shell 112 and the second shell 113 are buckled to form an installation cavity 111 for assembly.

[0053] The installation and use methods of the optical fiber bending device 10 will be briefly described below.

[0054] First, pass the optical fiber conduit 12 with a traction rope through the installation cavity 111. Then fix the gear shaft 144 on the outer shell 11 (at this time, the first shell 112 and the second shell 113 are not buckled), then sleeved the gear on the gear shaft 144, and then install the first transmission member 141 and the third transmission member 143 on the corresponding sliders 115 respectively, and make the teeth mesh with the gear. Then fix the other ends of the two traction ropes on the pins 1414 of the corresponding first transmission member 141 and the third transmission member 143 respectively, and adjust the traction ropes to a reasonable pre-tightening force through the set screws 1415. Then screw the rotating cylinder 132 onto the first transmission member 141, then put the wave spring 16 on the outer shell 11, buckle the first shell 112 and the second shell 113, then install the rotating handle 131, and fixedly connect the rotating handle 131 and the rotating cylinder 132 through screws. Finally, pass the optical fiber through the optical fiber conduit 12 and lock it through the optical fiber locking structure 17.

[0055] By turning the rotating handle 131, the rotating cylinder 132 drives the first transmission member 141 to move in a direction parallel to the axis direction of the housing 11. The first transmission member 141 drives the second transmission member 142 to rotate, and the second transmission member 142 drives the third transmission member 143 to move in a direction opposite to the moving direction of the first transmission member 141. Since the other ends of the two traction ropes are respectively fixed on the first transmission member 141 and the third transmission member 143, and the moving directions of the first transmission member 141 and the third transmission member 143 are opposite, one of the two traction ropes is tightened and the other is loosened, so that the end of the optical fiber conduit 12 is bent, and the optical fiber is also bent accordingly. In this embodiment, the bending angle can be 90° or even larger to meet the use requirements.

[0056] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. An optical fiber bending device, characterized in that: include: A housing (11), wherein the housing (11) has a mounting cavity (111); An optical fiber conduit (12), wherein the optical fiber conduit (12) is partially disposed in the installation cavity (111); an optical fiber is inserted into the optical fiber conduit (12); A rotating structure (13) is coaxially arranged with the housing (11) and is rotatably connected to one end of the housing (11); A transmission assembly (14) is arranged in the installation cavity (111), the transmission assembly (14) comprises a first transmission member (141), a second transmission member (142) and a third transmission member (143) which are sequentially connected in transmission, the rotating structure (13) rotates to drive the first transmission member (141) to move in the axial direction of the housing (11), the first transmission member (141) drives the second transmission member (142) to rotate, and the second transmission member (142) drives the third transmission member (143) to move in the opposite direction of the first transmission member (141); Two traction ropes, one end of each traction rope is fixedly connected to the end of the optical fiber conduit (12) outside the housing (11), and the other ends of the two traction ropes are respectively fixed to the first transmission member (141) and the third transmission member (143).

2. The optical fiber bending device according to claim 1, characterized in that: The rotating structure (13) comprises a rotating handle (131) and a rotating cylinder (132) which are fixedly connected. The rotating handle (131) is rotatably mounted on one end of the housing (11). The rotating cylinder (132) is transmission-connected to the first transmission member (141). The rotating cylinder (132) rotates to drive the first transmission member (141) to move in the axial direction of the housing (11).

3. The optical fiber bending device according to claim 2, characterized in that: The rotating cylinder (132) is provided with an internal thread, and one end of the first transmission member (141) is provided with an external thread matching the internal thread.

4. The optical fiber bending device according to claim 1, characterized in that: The second transmission member (142) is a gear, and the first transmission member (141) and the third transmission member (143) are both provided with gear teeth meshing with the gear on a side facing the gear.

5. The optical fiber bending device according to claim 1, characterized in that: The optical fiber bending device (10) also includes two pulleys (15) installed at intervals in the housing (11), the two pulleys (15) are located at one end of the transmission component (14) away from the rotating structure (13), and are respectively arranged corresponding to the two traction ropes, and the traction ropes are wound around the corresponding pulleys (15).

6. The optical fiber bending device according to claim 1, characterized in that: The optical fiber bending device (10) further comprises a wave spring (16) sleeved on the housing (11).

7. The optical fiber bending device according to claim 1, characterized in that: The optical fiber bending device (10) further comprises an optical fiber locking structure (17), and the optical fiber passes through the optical fiber locking structure (17); The optical fiber locking structure (17) comprises a connecting member (171) and a locking member (172), wherein one end of the connecting member (171) is inserted into the other end of the housing (11) away from the rotating structure (13); the locking member (172) is sleeved on the other end of the connecting member (171), and the locking member (172) is provided with a locking groove for locking the end of the optical fiber.

8. The optical fiber bending device according to claim 7, characterized in that: A silicone piece is arranged in the locking groove, and the end of the optical fiber is clamped in the clamping groove of the silicone piece.

9. The optical fiber bending device according to claim 1, characterized in that: The optical fiber bending device (10) further comprises a limiting member (18), wherein the limiting member (18) is installed in the housing (11) and is located at an end of the installation cavity (111) away from the rotating structure (13), and is used for limiting the first transmission member (141) and the third transmission member (143).

10. The optical fiber bending device according to claim 1, characterized in that: The housing (11) comprises a first shell (112) and a second shell (113) which are detachably connected, and the first shell (112) and the second shell (113) are buckled together to form the installation cavity (111).

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