Disposable end biplane angle-adjustable fiber endoscope

Abstract

The embodiment of the utility model discloses a disposable end biplane angle-adjustable fiber endoscope, relates to the field of medical instruments, and aims to solve the problem of view blind area, the fiber endoscope comprises a handle, a first operating port and a second operating port, the handle is internally provided with a containing cavity, and the side wall of the handle is provided with the first operating port and the second operating port; the first end of the mirror tube is connected with the handle, the second end of the mirror tube is provided with a camera shooting unit, and a connecting line of the camera shooting unit is arranged in the mirror tube in a penetrating mode and extends into the handle; the second end of the mirror tube is bendable; the operation end of the first traction mechanism corresponds to the first operation opening, and the first traction mechanism is connected with a first traction line and a second traction line; the operation end of the second traction mechanism corresponds to the second operation opening, and the second traction mechanism is connected with a third traction line and a fourth traction line. The embodiment of the utility model is suitable for the scene of patient examination in the body of the patient.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a disposable end-mounted dual-plane adjustable angle fiber endoscope. Background Technology

[0002] As a medical diagnostic instrument, fiber optic endoscopes can enter the body's natural passages to examine and even treat lesions in the nose, throat, and digestive tract. Currently, common fiber optic endoscopes mainly consist of a handpiece assembly and an insertion section. The insertion section is used to insert into body cavities for examination or treatment, while the handpiece assembly controls the insertion section's bending and rotation via internal traction components.

[0003] Existing fiber optic endoscopes only allow for bending in a single plane at the insertion end. In complex cavitary environments, these endoscopes are prone to creating blind spots. Summary of the Invention

[0004] In view of this, the purpose of this utility model is to provide a disposable end-mounted dual-plane adjustable angle fiber endoscope, which can reduce blind spots in the field of vision.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] This utility model provides a disposable end-mounted dual-plane adjustable angle fiber endoscope, comprising: a handle, the handle having a receiving cavity inside, and a first operating port and a second operating port on the side wall of the handle; a tube, the first end of the tube being connected to the handle, the second end of the tube being provided with a camera unit, the connecting wire of the camera unit passing through the tube and extending into the handle; the second end of the tube being flexible; and a first traction mechanism, the first traction mechanism being disposed in the receiving cavity inside the handle, the operating end of the first traction mechanism corresponding to the first operating port, the first traction... The guide mechanism is connected to a first traction wire and a second traction wire, which pass through the endoscope tube and are connected to the second end of the endoscope tube to control the second end of the endoscope tube to bend positively or negatively in a first direction. The second traction mechanism is located in a receiving cavity inside the handle, with its operating end corresponding to the second operating port. The second traction mechanism is connected to a third traction wire and a fourth traction wire, which pass through the endoscope tube and are connected to the second end of the endoscope tube to control the second end of the endoscope tube to bend positively or negatively in a second direction; wherein the second direction is perpendicular to the first direction.

[0007] Optionally, the first end of the endoscope tube is detachably connected to the handle, making the endoscope tube a disposable endoscope tube. After one clinical use, it can be removed from the handle and discarded, and then replaced with a new endoscope tube.

[0008] Optionally, the first traction mechanism includes: a first rotating shaft rotatably disposed within the handle; a first operating member connected to the first rotating shaft and capable of driving the first rotating shaft to rotate, wherein the manual operating end of the first operating member corresponds to and protrudes from the first operating port; a first spur gear fixed on the first rotating shaft; a first rack and a second rack arranged parallel to each other along the length direction of the handle and meshing with the first spur gear; a first guide member fixed within the handle, having a first guide hole and a second guide hole, wherein the first rack passes through the first guide hole and the second rack passes through the second guide hole; a first traction line connected to the first rack and the second traction line connected to the second rack.

[0009] Optionally, the second traction mechanism includes: a first bevel gear rotatably connected to the handle; a second operating member connected to the central shaft of the first bevel gear and located on a first side of the first bevel gear, the second operating member corresponding to and protruding from the second operating port; a second bevel gear meshing with the first bevel gear; a second spur gear fixedly connected to the central shaft of the second bevel gear and located on a second side of the second bevel gear; a third spur gear and a fourth spur gear meshing with the second spur gear respectively; A third rack and a fourth rack are arranged parallel to each other along the length of the handle between the third spur gear and the fourth spur gear. The tooth surfaces of the third rack and the fourth rack face away from each other. The third rack meshes with the third spur gear, and the fourth rack meshes with the fourth spur gear. A second guide member is fixed inside the handle and has a third guide hole and a fourth guide hole. The third rack passes through the third guide hole, and the fourth rack passes through the fourth guide hole. A third traction line is connected to the third rack, and a fourth traction line is connected to the fourth rack.

[0010] Optionally, the connections between the endoscope tube and the handle, between the first traction line and the first rack, between the second traction line and the second rack, between the third traction line and the third rack, and between the fourth traction line and the fourth rack are all detachable.

[0011] Optionally, the fiber endoscope further includes: a detachable connector, which is detachably connected to the handle, and the endoscope tube is fixedly connected to the detachable connector; the detachable connector is provided with a first guide groove, a second guide groove, a third guide groove, and a fourth guide groove; a fifth rack, which is disposed in the first guide groove and can move along the first guide groove, and meshes with the first rack, and the first traction line is connected to the fifth rack; a sixth rack, which is disposed in the second guide groove and can move along the second guide groove, and meshes with the second rack, and the second traction line is connected to the sixth rack; a seventh rack, which is disposed in the third guide groove and can move along the third guide groove, and meshes with the third rack, and the third traction line is connected to the seventh rack; and an eighth rack, which is disposed in the fourth guide groove and can move along the fourth guide groove, and meshes with the fourth rack, and the fourth traction line is connected to the eighth rack.

[0012] Optionally, the fiber endoscope further includes: a double spur gear, rotatably disposed within the handle, one of the spur gears meshing with the first rack and the second rack, and the other spur gear meshing with the fifth rack and the sixth rack; a fifth spur gear and a sixth spur gear, the fifth spur gear meshing with the third rack and the seventh rack respectively, and the sixth spur gear meshing with the fourth rack and the eighth rack respectively.

[0013] Optionally, the seventh and eighth racks are located between the fifth and sixth racks, and the plane in which the seventh and eighth racks are located is perpendicular to the plane in which the fifth and sixth racks are located.

[0014] Optionally, the seventh rack and the eighth rack are disposed between the fifth spur gear and the sixth spur gear, and the tooth surfaces of the seventh rack and the eighth rack face away from each other.

[0015] Optionally, the handle has a replacement compartment at its tail end, and the detachable connector is located in the replacement compartment; the handle has a cover or door that can open the replacement compartment.

[0016] Optionally, the detachable connector is tapered in shape, and the inner wall of the replacement compartment is adapted to the shape of the detachable connector.

[0017] This invention provides a disposable end-mounted dual-plane adjustable angle fiber endoscope, including a handle and a tube connected to the handle. The end of the tube is equipped with a camera unit for imaging. A first traction mechanism and a second traction mechanism are arranged in the receiving cavity inside the handle. The first traction mechanism is connected to a first traction line and a second traction line to control the degree of bending of the tube in a first direction. The second traction mechanism is connected to a third traction line and a fourth traction line to control the degree of bending of the tube in a second direction. The first direction and the second direction are perpendicular to each other, so that dual-plane (the plane containing the first direction and the plane containing the second direction) observation angle operation can be realized during use, overcoming the blind spot of traditional fiber endoscopes. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the fiber endoscope in one embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the internal structure of a fiber endoscope in one embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the detachable connector in a fiber endoscope according to one embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the structure of the first traction mechanism in a fiber endoscope according to an embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of the first traction mechanism and the second traction mechanism in a fiber endoscope according to an embodiment of the present invention.

[0024] Figure 6 This is a schematic diagram showing the relative positions of the fifth, sixth, seventh, and eighth racks in a fiber endoscope according to one embodiment of the present invention.

[0025] Figure 7 This is a schematic diagram showing the connection between the first operating element and the first traction structure in a fiber endoscope according to one embodiment of the present invention;

[0026] Figure 8 This is a schematic diagram of a portion of the structure of the first traction mechanism and the second traction mechanism in a fiber endoscope according to an embodiment of the present invention.

[0027] Figure 9 This is another schematic diagram of the structure of the first traction mechanism and the second traction mechanism in a fiber endoscope according to an embodiment of the present invention.

[0028] Figure 10 This is a schematic diagram of the handle in a fiber endoscope according to one embodiment of the present invention. Detailed Implementation

[0029] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0030] It should be understood that the described embodiments are merely some embodiments of this utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0031] The disposable end-mounted dual-plane adjustable angle fiber endoscope provided in this embodiment can solve the problem of observing complex cavity environments and help reduce blind spots.

[0032] The present invention will be further described in detail below with reference to the accompanying drawings.

[0033] See Figure 1 , Figure 2 As shown, the disposable end-plane adjustable angle fiber endoscope provided in this embodiment includes: a handle 10, a tube 11, a first traction mechanism 12 and a second traction mechanism 13.

[0034] The handle 10 has a receiving cavity 101 inside, and a first operating port 102 and a second operating port 103 are provided on the side wall of the handle 10.

[0035] The first end of the lens tube 11 is connected to the handle 10, and the second end of the lens tube 11 is provided with a camera unit (not shown in the figure). The connecting wire of the camera unit passes through the lens tube 11 and extends into the handle 10; the second end of the lens tube is flexible.

[0036] The first traction mechanism 12 is located in the receiving cavity 101 inside the handle 10. The operating end 1211 of the first traction mechanism 12 corresponds to the first operating port 102. The first traction mechanism 12 is connected to a first traction wire and a second traction wire (not shown in the figure). The first traction wire and the second traction wire pass through the endoscope tube and are connected to the second end of the endoscope tube 11 to control the second end of the endoscope tube 11 to bend along the positive direction of the first direction (such as the left side) (such as bending to). Figure 1 (as shown at position 131) or bends in the negative direction of the first direction (such as to the right) (such as bending to) Figure 1 (as shown at position 132).

[0037] The second traction mechanism 13 is located in the receiving cavity 101 inside the handle 10. The operating end 1311 of the second traction mechanism 13 corresponds to the second operating port 103. The second traction mechanism 13 is connected to a third traction wire and a fourth traction wire (not shown in the figure). The third traction wire and the fourth traction wire pass through the endoscope tube 11 and are connected to the second end of the endoscope tube 11 to control the second end of the endoscope tube 11 to bend along the positive direction (e.g., the ventral side) of the second direction (e.g., bend to). Figure 1 (as shown in position 121) or bends in the negative direction of the second direction (such as the back side) (such as bending to) Figure 1 (as shown in position 122); where the second direction is perpendicular to the first direction.

[0038] This invention provides a fiber endoscope with adjustable angles in two planes at the end, including a handle and a tube connected to the handle. The end of the tube is equipped with a camera unit for imaging. A first traction mechanism and a second traction mechanism are arranged in a receiving cavity inside the handle. The first traction mechanism is connected to a first traction line and a second traction line to control the degree of bending of the tube in a first direction. The second traction mechanism is connected to a third traction line and a fourth traction line to control the degree of bending of the tube in a second direction. The first direction and the second direction are perpendicular to each other. Then, the camera unit installed at the second end of the tube is used for multi-angle observation, so that the observation angle operation of the two planes (the plane where the first direction is located and the plane where the second direction is located) at the end of the tube can be realized during use.

[0039] Optionally, the first end of the endoscope tube is detachably connected to the handle, making the endoscope tube a disposable tube. After one clinical use, it can be removed from the handle and discarded, and then replaced with a new endoscope tube. Therefore, the end-mounted dual-plane adjustable angle fiber endoscope described in this embodiment is called a disposable end-mounted dual-plane adjustable angle fiber endoscope.

[0040] See Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 7 , Figure 8 , Figure 9 In some embodiments, the first traction mechanism 12 includes: a first rotating shaft 123, a first operating member 124, a first spur gear 125, a first rack 126, a second rack 127, and a first guide member 128.

[0041] The first rotating shaft 123 is rotatably disposed inside the handle 10; the first operating member 124 is connected to the first rotating shaft 123 and can drive the first rotating shaft 123 to rotate; the manual operation end 1211 of the first operating member 124 corresponds to the first operating port 102 and protrudes from the first operating port 102 for manual operation.

[0042] The first spur gear 125 is fixed on the first rotating shaft 123. The first rack 126 and the second rack 127 are arranged parallel to each other along the length of the handle and mesh with the first spur gear 125.

[0043] The first guide member 128 is fixed inside the handle 10. The first guide member 128 is provided with a first guide hole and a second guide hole. The first rack 126 passes through the first guide hole 1281, and the second rack 127 passes through the second guide hole 1282. The first guide member 128 can provide guidance for the linear movement of the first rack 126 and the second rack 127.

[0044] The first traction wire is connected to the first rack 126, and the second traction wire is connected to the second rack 127. Thus, by actuating the first operating member through the first operating port, the first operating member drives the first rotating shaft to rotate. The first rotating shaft then drives the first spur gear fixedly mounted on the first rotating shaft to rotate. The first spur gear meshes with the first and second racks, causing the first rack to move through the first guide hole and the second rack to move through the second guide hole. This, in turn, drives the first traction wire connected to the first rack and the second traction wire connected to the second rack to control the bending of the end of the lens tube in a first direction (e.g., horizontal direction). The direction of movement of the first rack is opposite to the direction of movement of the second rack.

[0045] See Figure 1 , Figure 2 , Figure 8 , Figure 9 In some embodiments, the second traction mechanism 13 includes: a first bevel gear 133, a second operating member 134, a second bevel gear 135, a second spur gear 136, a third spur gear 137 and a fourth spur gear 138, a third rack 139 and a fourth rack 140.

[0046] The first bevel gear 133 is rotatably connected to the handle 10. The second operating member 134 is connected to the central axis of the first bevel gear 133 and is located on the first side of the first bevel gear 133. The second operating member 134 corresponds to the second operating port 103 and protrudes from the second operating port 103 for manual operation.

[0047] The second bevel gear 135 meshes with the first bevel gear 133; the second spur gear 136 is fixedly connected to the central shaft of the second bevel gear 135 and is located on the second side of the second bevel gear 135; the third spur gear 137 and the fourth spur gear 138 mesh with the second spur gear 136 respectively.

[0048] The third rack 139 and the fourth rack 140 are arranged parallel to each other along the length of the handle 10 between the third spur gear 137 and the fourth spur gear 138. The tooth surfaces of the third rack 139 and the fourth rack 140 face away from each other. The third rack 139 meshes with the third spur gear 137, and the fourth rack 140 meshes with the fourth spur gear 138. This arrangement of the third rack 139 and the fourth rack 140 along the length of the handle 10 reduces the space occupied by the third rack 139 and the fourth rack 140, making the internal structure of the handle more compact.

[0049] The second guide member 141 is fixed inside the handle 10. The second guide member 141 is provided with a third guide hole and a fourth guide hole. The third rack 139 passes through the third guide hole 1411, and the fourth rack 140 passes through the fourth guide hole 1412. The second guide member 141 can provide guidance for the linear movement of the third rack 139 and the fourth rack 140.

[0050] The third traction line is connected to the third rack 139, and the fourth traction line is connected to the fourth rack 140. Thus, by actuating the second operating member through the second operating port, the second operating member is connected to the central shaft of the first bevel gear, driving the first bevel gear to move. The first bevel gear meshes with the second bevel gear, causing the moving first bevel gear to drive the second bevel gear to move. The second bevel gear, in turn, drives the second spur gear on the same central shaft to rotate. The second spur gear drives the third and fourth spur gears to rotate. The third spur gear drives the third rack to move, and the fourth spur gear drives the fourth rack to move, thereby moving the third traction line connected to the third rack and the fourth traction line connected to the fourth rack, thus controlling the bending of the end of the lens tube in a second direction (e.g., the horizontal direction). The direction of movement of the third rack is opposite to that of the fourth rack.

[0051] See Figure 1 , Figure 2 In some embodiments, the connections between the endoscope tube 11 and the handle 10, between the first traction wire and the first rack 126, between the second traction wire and the second rack 127, between the third traction wire and the third rack 139, and between the fourth traction wire and the fourth rack 140 are all detachable, allowing the endoscope tube and its traction wires to be separated from the handle. In practical use, after each endoscopic examination, the endoscope tube and its traction wires can be separated from the handle and discarded, while the handle can be retained for reuse to assemble with a new endoscope tube to form a new fiber endoscope; in other words, the endoscope tube in this embodiment is a disposable endoscope tube.

[0052] To facilitate the quick separation of the endoscope tube, along with its various traction wires, from the handle, see [link / reference]. Figure 1 , Figure 2 , Figure 3In some embodiments, the fiber endoscope further includes a detachable connector 14, which is detachably connected to the handle 10, and the endoscope tube 11 is fixedly connected to the detachable connector 14. The detachable connector 14 is provided with a first guide groove 142, a second guide groove 143, a third guide groove 144, and a fourth guide groove 145. A fifth rack 146 is disposed in the first guide groove 142 and can move along the first guide groove 142. The fifth rack 146 meshes with the first rack 126, and a first traction line is connected to the fifth rack 146. A sixth rack 147 is disposed in the second guide groove 142. The sixth rack 147 is located in the second guide groove 143 and can move along the second guide groove 143. The sixth rack 147 meshes with the second rack 127, and the second traction line is connected to the sixth rack 147. The seventh rack 148 is located in the third guide groove 144 and can move along the third guide groove 144. The seventh rack 148 meshes with the third rack 139, and the third traction line is connected to the seventh rack 148. The eighth rack 149 is located in the fourth guide groove 145 and can move along the fourth guide groove 145. The eighth rack 149 meshes with the fourth rack 140, and the fourth traction line is connected to the eighth rack 149. In this embodiment, the detachable connector 14 allows for convenient and rapid separation of the lens tube and its traction lines from the handle.

[0053] In the above embodiments, the fifth rack 146 can directly mesh with the first rack 126, and the sixth rack 147 can directly mesh with the second rack 127. Since the fifth rack 146 and the sixth rack 147 are disposable parts, while the first rack 126 and the second rack 127 are reusable parts, if the fifth rack 146 directly meshes with the first rack 126, and the sixth rack 147 directly meshes with the second rack 127, on the one hand, in actual use, and during the process of separating the fifth rack 146 from the first rack 126, and the sixth rack 147 from the second rack 127, it will inevitably cause wear or damage to the first rack 126 and the second rack 127, affecting the service life of the reusable handle; on the other hand, the fifth rack 146 and the first rack 126 have a certain meshing length, and the sixth rack 147 and the second rack 127 also have a certain meshing length, which will make the operation of separating the fifth rack 146 from the first rack 126 and the sixth rack 147 from the second rack 127 inconvenient.

[0054] To improve the lifespan of reusable handles and facilitate separation, see [link / reference]. Figure 2 and Figure 4 In some embodiments, the fiber endoscope further includes a double spur gear 15, which is rotatably disposed within the handle 10. One of the spur gears in the double spur gear 15 meshes with a first rack 126 and a second rack 127, and the other spur gear in the double spur gear 15 meshes with a fifth rack 146 and a sixth rack 147.

[0055] In this embodiment, by setting a double spur gear 15, the first rack 126 and the second rack 127 mesh with only one of the spur gears in the double spur gear 15, which reduces the meshing length of the first rack 126 and the second rack 127, which helps to reduce the wear of the first rack 126 and the second rack 127, thereby improving the service life of the handle.

[0056] In addition, the fifth rack 146 and the sixth rack 147 mesh with another spur gear in the double spur gear 15, making the meshing length of the fifth rack 146 and the sixth rack 147 relatively short, which facilitates quick separation from the double spur gear 15.

[0057] Furthermore, by setting up the double spur gear 15, the relative positions of the fifth rack 146 and the sixth rack 147 with the first rack 126 and the second rack 127 can be adjusted by changing the length of the double spur gear 15. This makes it easier to arrange the first traction line and the second traction line at the position of the longitudinal center plane of the end tube in the first direction, so as to provide precise control over the bending direction and bending angle of the end of the end tube in the first direction.

[0058] Similarly, to improve the lifespan of reusable handles and facilitate separation, see [link to relevant documentation]. Figure 2 and Figure 5 In some embodiments, the fiber endoscope further includes a fifth spur gear 151 and a sixth spur gear 152. The fifth spur gear 151 meshes with the third rack 139 and the seventh rack 148, respectively, and the sixth spur gear 152 meshes with the fourth rack 140 and the eighth rack 149, respectively. In this embodiment, the technical effect of setting the fifth spur gear 151 and the sixth spur gear 152 is similar to that of setting the double spur gear 15. In particular, by setting the fifth spur gear 151 and the sixth spur gear 152, the relative position between the seventh rack 148 and the eighth rack 149 and the third rack 139 and the fourth rack 140 can be adjusted by selecting appropriate lengths of the fifth spur gear 151 and the sixth spur gear 152. This allows the third traction wire and the fourth traction wire to be conveniently positioned at the longitudinal center plane of the endoscope tube in the second direction, thereby providing precise control over the bending direction and bending angle of the end of the endoscope tube in the second direction.

[0059] See Figure 3 , Figure 6In some embodiments, the seventh rack 148 and the eighth rack 149 are located between the fifth rack 146 and the sixth rack 147, and the plane containing the seventh rack 148 and the eighth rack 149 is perpendicular to the plane containing the fifth rack 146 and the sixth rack 147. In this embodiment, the seventh rack 148 and the eighth rack 149 are located between the fifth rack 146 and the sixth rack 147, which can further increase the compactness of the internal structure of the handle.

[0060] See Figure 1 , Figure 2 , Figure 5 In some embodiments, the seventh rack 148 and the eighth rack 149 are disposed between the fifth spur gear 151 and the sixth spur gear 152, with the tooth surfaces of the seventh rack 148 and the eighth rack 149 facing away from each other. This can further increase the compactness of the internal structure of the handle.

[0061] See Figure 2 In some embodiments, the handle 10 has a replacement compartment 16 at its tail end, and a detachable connector 14 is disposed in the replacement compartment 16. The handle 10 has a cover or door that can open the replacement compartment. Thus, during use, when the lens tube needs to be replaced, it is only necessary to open the replacement compartment at the tail end of the handle and remove the detachable connector from the handle as a whole. When a new lens tube needs to be replaced, it is only necessary to place the detachable connector 14 with the new lens tube into the replacement compartment at the tail end of the handle, and make the new fifth rack 146 and the new sixth rack 147 on the detachable connector 14 mesh with the other spur gear in the double spur gear 15, and make the new seventh rack 148 and the new eighth rack 149 on the detachable connector 14 mesh with the fifth spur gear 151 and the sixth spur gear 152, respectively.

[0062] See Figure 2 and Figure 3 In some embodiments, the detachable connector 14 is tapered in shape, and the inner wall of the replacement compartment 16 is adapted to the shape of the detachable connector 14; in this way, it can be better disassembled and replaced during replacement, and at the same time, the inner wall of the replacement compartment can provide a limiting function for the detachable connector.

[0063] In other embodiments, the inner wall of the replacement compartment is provided with internal threads, and the outer wall of the detachable connector 14 is provided with external threads. The external threads on the outer wall of the detachable connector 14 can be threadedly connected to or disconnected from the internal threads on the inner wall of the replacement compartment.

[0064] In other embodiments, the endoscope tube includes an inner flexible tube, a snake-bone structure, and a rubber layer; the snake-bone structure is wrapped around the outer surface of the inner flexible tube, and a rubber layer is wrapped around the outside of the snake-bone structure, and the spacing density between the segments of the snake-bone structure at the second end of the endoscope tube is less than the spacing density between the segments of the snake-bone structure at the first end of the endoscope tube.

[0065] See Figure 10 In particular, when assembling the fiber endoscope, you can choose to assemble the shaft and gear assembly first and then put them into the handle, thereby reducing the difficulty of assembling the fiber endoscope.

[0066] The following example, examining a patient lying supine, illustrates the relevant operations of the fiber endoscope in this embodiment of the present invention.

[0067] For patients lying supine, a fiberoptic endoscope is used for examination. Once the endoscope reaches the target area, the first operating element 124 drives the first rotating shaft 123 to rotate forward. The first rotating shaft 123 drives the first spur gear 125 to rotate. The spur gear 125 meshes with the first rack 126, causing the first rack 126 and the first traction line to move. The first traction line bends the second end of the endoscope tube towards the patient's left side (e.g., bending to...). Figure 1 (as shown in position 131).

[0068] The first operating element 124 drives the first rotating shaft 123 to rotate in the opposite direction. The first rotating shaft 123 drives the first spur gear 125 to rotate. The first spur gear 125 meshes with the second rack 127, causing the second rack 127 and the second traction line to move. The second traction line bends the second end of the endoscope tube toward the patient's right side (e.g., bending to...). Figure 1 (as shown at position 132)

[0069] The second operating element 134 drives the first bevel gear 133 to rotate forward. Then, the first bevel gear 133 drives the second bevel gear 135 to move. The second bevel gear 133 then drives the second spur gear 136 for transmission. The second spur gear 136 then drives the third spur gear 137 to rotate. The third spur gear 137 drives the third rack 139, which in turn pulls the third traction cable. The third traction cable bends the second end of the endoscope tube towards the patient's back (e.g., bending to...). Figure 1 (as shown in position 122).

[0070] The second operating element 134 drives the first bevel gear 133 to rotate in the opposite direction. Then, the first bevel gear 133 drives the second bevel gear 135 to move. The second bevel gear 135 then drives the second spur gear 136 for transmission. Subsequently, the second spur gear 136 drives the fourth spur gear 138 to rotate. The fourth spur gear 138 drives the fourth rack 140. Then, the fourth rack 140 pulls the fourth traction line. The fourth traction line bends the second end of the endoscope tube toward the patient's ventral side (e.g., bending to...). Figure 1 (as shown in position 121).

[0071] In some embodiments, complex structural regions can be observed through the coordinated operation of the first and second operating elements.

[0072] For example, when the fiber optic endoscope reaches the target area and it is necessary to focus on observing the left side, the first operating element 124 can be used to drive the first rotating shaft 123 to rotate forward. The first rotating shaft 123 drives the first spur gear 125 to rotate. The first spur gear 125 meshes with the first rack 126, causing the first rack 126 and the first traction line to move. The first traction line pulls the second end of the endoscope tube 11 towards the patient's left side, bending it. In this state, the second operating element 134 can then be operated to drive the first bevel gear 133 to rotate forward. The first bevel gear 133 drives the second bevel gear 135 to move. The second bevel gear 135 then drives the second spur gear 136 for transmission. The second spur gear 136 then drives the third spur gear 137 to rotate. The third spur gear 137 drives the third rack 139. Then, the third rack 139 pulls the third traction line, causing the third traction line to pull the second end of the endoscope tube 11 towards the patient's dorsal side. This allows the second end of the endoscope tube to bend towards the left dorsal side, enabling observation of the patient's left dorsal side.

[0073] For example, the first operating element 124 can first drive the first rotating shaft 123 to rotate forward. The first rotating shaft 123 drives the first spur gear 125 to rotate forward. The first spur gear 125 meshes with the first rack 126, causing the first rack 126 and the first traction line 125 to move. The first traction line 125 pulls the second end of the endoscope tube to bend towards the patient's left side. In this state, the second operating element 134 can then be operated to drive the first bevel gear 133 to rotate in the opposite direction. Then, the first bevel gear 133 drives the second bevel gear 135 to move. The second bevel gear 135 then drives the second spur gear 136 for transmission. The second spur gear 136 then drives the fourth spur gear 138 to rotate. The fourth spur gear 138 drives the fourth rack 140. Then, the fourth rack 140 pulls the fourth traction line, which pulls the second end of the endoscope tube to bend towards the patient's ventral side. This allows the second end of the endoscope tube to bend towards the left ventral side, enabling observation of the patient's left ventral side.

[0074] For example, when the fiberoptic endoscope reaches the target area and it is necessary to focus on observing the right side, the first operating element 124 drives the first rotating shaft 123 to rotate in the opposite direction. The first rotating shaft 123 drives the first spur gear 125 to rotate. The first spur gear 125 meshes with the second rack 127, causing the second rack 127 and the second traction line to move. The second traction line pulls the second end of the endoscope tube towards the patient's right side, bending it. In this state, the second operating element 134 can then be operated to drive the first bevel gear 133 to rotate in the forward direction. Then, the first bevel gear 133 drives the second bevel gear 135 to move. The second bevel gear 135 then drives the second spur gear 136 for transmission. The second spur gear 136 then drives the third spur gear 137 to rotate. The third spur gear 137 drives the third rack 139. Then, the third rack 139 pulls the third traction line, causing the third traction line to pull the second end of the endoscope tube towards the patient's dorsal side. This allows the second end of the endoscope tube to bend towards the right dorsal side, enabling observation of the patient's right dorsal side.

[0075] For example, the first operating element 124 drives the first rotating shaft 123 to rotate in the opposite direction. The first rotating shaft 123 drives the first spur gear 125 to rotate. The first spur gear 125 meshes with the second rack 127, causing the second rack 127 and the second traction line to move. The second traction line pulls the second end of the endoscope tube towards the patient's right side, bending it. In this state, the second operating element 134 can then be operated to drive the first bevel gear 133 to rotate in the opposite direction. Then, the first bevel gear 133 drives the second bevel gear 135 to move. The second bevel gear 135 then drives the second spur gear 136 for transmission. The second spur gear 136 then drives the fourth spur gear 138 to rotate. The fourth spur gear 138 drives the fourth rack 140. Then, the fourth rack 140 pulls the fourth traction line, causing the fourth traction line to pull the second end of the endoscope tube towards the patient's ventral side. This allows the second end of the endoscope tube to bend towards the right ventral side, enabling observation of the patient's right ventral side.

[0076] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0077] The embodiments of this utility model have been described in detail above. Those skilled in the art can design and modify the device and its usage within the scope of this utility model according to the on-site construction conditions.

[0078] The various embodiments in this specification are described in a related manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0079] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A disposable dual distal biplane angle adjustable endoscope, characterized in that, The utility model relates to a kind of camera head, including: Handle, the handle inside has accommodating cavity, first operation mouth and second operation mouth are set on the side wall of the handle; Mirror tube, the first end of the mirror tube is connected with the handle, the second end of the mirror tube is equipped with camera unit, the wire of the camera unit is arranged in the mirror tube, and is extended to the inside of the handle;The second end of the mirror tube is bendable;Wherein, the first end of the mirror tube is detachably connected between the handle; First traction mechanism, the first traction mechanism is arranged in the accommodating cavity inside the handle, the operating end of the first traction mechanism corresponds with the first operation mouth, the first traction mechanism is connected with first traction line and second traction line, the first traction line and the second traction line are arranged in the mirror tube, and are connected to the second end of the mirror tube, to control the second end of the mirror tube along the positive bending of first direction or along the negative bending of the first direction; Second traction mechanism, the second traction mechanism is arranged in the accommodating cavity inside the handle, the operating end of the second traction mechanism corresponds with the second operation mouth, the second traction mechanism is connected with third traction line and fourth traction line, the third traction line and the fourth traction line are arranged in the mirror tube, and are connected to the second end of the mirror tube, to control the second end of the mirror tube along the positive bending of second direction or along the negative bending of the second direction;Wherein, the second direction is perpendicular to the first direction.

2. The endoscope according to claim 1, wherein The first traction mechanism includes: First rotating shaft, the first rotating shaft is rotatably arranged in the handle; First operating part, the first operating part is connected with the first rotating shaft, can drive the first rotating shaft to rotate, the manual operating end of the first operating part corresponds with the first operation mouth, and is exposed from the first operation mouth; First spur gear, the first spur gear is fixed on the first rotating shaft; First rack and second rack, the first rack and the second rack are arranged in parallel along the length direction of the handle, and are engaged with the first spur gear; First guide, the first guide is fixed in the handle, the first guide is provided with first guide hole and second guide hole, the first rack is arranged in the first guide hole, and the second rack is arranged in the second guide hole; The first traction line is connected with the first rack, and the second traction line is connected with the second rack.

3. The endoscope according to claim 2, wherein The second traction mechanism includes: First bevel gear, the first bevel gear is rotatably connected on the handle; Second operating part, the second operating part is connected with the center shaft of the first bevel gear, and is located on the first side of the first bevel gear, the second operating part corresponds with the second operation mouth, and is exposed from the second operation mouth; Second bevel gear, the second bevel gear is engaged with the first bevel gear; Second spur gear, the second spur gear is fixedly connected on the center shaft of the second bevel gear, and is located on the second side of the second bevel gear; Third spur gear and fourth spur gear, the third spur gear and the fourth spur gear are engaged with the second spur gear respectively. a third rack and a fourth rack, the third rack and the fourth rack are arranged in parallel along the length direction of the handle between the third spur gear and the fourth spur gear, the tooth surface of the third rack and the tooth surface of the fourth rack are opposite to each other, the third rack is engaged with the third spur gear, and the fourth rack is engaged with the fourth spur gear; a second guide, the second guide is fixed in the handle, the third guide hole and the fourth guide hole are arranged on the second guide, the third rack is arranged in the third guide hole, and the fourth rack is arranged in the fourth guide hole; the third traction line is connected with the third rack, and the fourth traction line is connected with the fourth rack.

4. The endoscope according to claim 3, wherein The mirror tube and the handle, the first traction line and the first rack, the second traction line and the second rack, the third traction line and the third rack, and the fourth traction line and the fourth rack are detachably connected.

5. The endoscope of claim 4, wherein, The fiber endoscope further comprises: a detachable connecting piece, the detachable connecting piece is detachably connected with the handle, and the mirror tube is fixedly connected with the detachable connecting piece; the detachable connecting piece is provided with a first guide groove, a second guide groove, a third guide groove and a fourth guide groove; a fifth rack, the fifth rack is arranged in the first guide groove and can move along the first guide groove, the fifth rack is engaged with the first rack, and the first traction line is connected with the fifth rack; a sixth rack, the sixth rack is arranged in the second guide groove and can move along the second guide groove, the sixth rack is engaged with the second rack, and the second traction line is connected with the sixth rack; a seventh rack, the seventh rack is arranged in the third guide groove and can move along the third guide groove, the seventh rack is engaged with the third rack, and the third traction line is connected with the seventh rack; an eighth rack, the eighth rack is arranged in the fourth guide groove and can move along the fourth guide groove, the eighth rack is engaged with the fourth rack, and the fourth traction line is connected with the eighth rack.

6. The endoscope of claim 5, wherein, The fiber endoscope further comprises: a double spur gear, the double spur gear is rotatably arranged in the handle, one of the spur gears in the double spur gear is engaged with the first rack and the second rack, and the other of the spur gears in the double spur gear is engaged with the fifth rack and the sixth rack; a fifth spur gear and a sixth spur gear, the fifth spur gear is engaged with the third rack and the seventh rack respectively, and the sixth spur gear is engaged with the fourth rack and the eighth rack respectively.

7. The endoscope of claim 6, wherein, The seventh rack and the eighth rack are located between the fifth rack and the sixth rack, and the plane where the seventh rack and the eighth rack are located is perpendicular to the plane where the fifth rack and the sixth rack are located.

8. The endoscope of claim 7, wherein, The seventh rack and the eighth rack are arranged between the fifth spur gear and the sixth spur gear, and the tooth surface of the seventh rack and the tooth surface of the eighth rack are opposite to each other.

9. The endoscope of claim 5, wherein, The tail end of the handle is provided with a replacement cartridge, and the detachable connecting piece is arranged in the replacement cartridge.

10. The endoscope of claim 9, wherein, The detachable connecting piece is in a conical shape, and the inner wall of the replacement cartridge is matched with the shape of the detachable connecting piece.

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