Disposable end biplane angle-adjustable fiber endoscope

Abstract

The embodiment of the invention 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 areas, the fiber endoscope comprises a handle, the handle is internally provided with a containing cavity, and the side wall of the handle is provided with a first operation opening and a second operation opening; 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 invention is suitable for the scene of patient examination in the body of the patient.

Description

Technical Field

[0001] The invention relates to the technical field of medical instruments, and in particular to a disposable fiber endoscope with double-plane adjustable angles at the end. Background Art

[0002] As a medical detection instrument, fiber endoscope can enter the natural channels of the human body to inspect and even treat lesions in the nose, throat, and digestive tract. At present, common fiber endoscopes mainly include a handle assembly and an insertion part. The insertion part is used to insert into the human cavity for inspection or treatment. The handle assembly controls the insertion part through an internal pulling piece to achieve operations such as bending and rotation. The insertion end of the existing fiber endoscope can only be bent in a single plane. For complex cavity environments, this fiber endoscope is prone to blind spots. Summary of the invention

[0003] In view of this, an object of the present invention is to provide a disposable fiber endoscope with dual-plane adjustable angles at the end, which can reduce blind areas of the visual field.

[0004] To achieve the above objectives, the embodiments of the present invention provide the following technical solutions: The embodiment of the present invention provides a fiber endoscope with an adjustable angle of a double plane at the end, comprising: a handle, the handle having an accommodating cavity inside, a first operating port and a second operating port being opened on the side wall of the handle; a mirror tube, the first end of the mirror tube being connected to the handle, the second end of the mirror tube being provided with a camera unit, the connection line of the camera unit being passed through the mirror tube and extending to the inside of the handle; the second end of the mirror tube being bendable; a first traction mechanism, the first traction mechanism being arranged in the accommodating cavity inside the handle, the operating end of the first traction mechanism corresponding to the first operating port, the first traction mechanism A first traction line and a second traction line are connected, the first traction line and the second traction line are passed through the mirror tube and connected to the second end of the mirror tube to control the second end of the mirror tube to bend positively along the first direction or negatively along the first direction; a 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 to the second operating port, the second traction mechanism is connected with a third traction line and a fourth traction line, the third traction line and the fourth traction line are passed through the mirror tube and connected to the second end of the mirror tube to control the second end of the mirror tube to bend positively along the second direction or negatively along the second direction; wherein the second direction is perpendicular to the first direction.

[0005] Optionally, the first end of the mirror tube is detachably connected to the handle, so that the mirror tube is a disposable mirror tube, which can be removed from the handle and discarded after one clinical use, and then replaced with a new mirror tube.

[0006] Optionally, the first traction mechanism includes: a first rotating shaft, which is rotatably disposed in the handle; a first operating member, which is connected to the first rotating shaft and can drive the first rotating shaft to rotate, and the manual operating end of the first operating member corresponds to the first operating port and is exposed from the first operating port; a first spur gear, which is fixed on the first rotating shaft; a first rack and a second rack, which are arranged in parallel along the length direction of the handle and mesh with the first spur gear; a first guide member, which is fixed in the handle, and a first guide hole and a second guide hole are provided on the first guide member, the first rack is penetrated into the first guide hole, and the second rack is penetrated into the second guide hole; the first traction line is connected to the first rack, and the second traction line is connected to the second rack.

[0007] Optionally, the second traction mechanism comprises: a first bevel gear, which is rotatably connected to the handle; a second operating member, which is connected to the central axis of the first bevel gear and is located on the first side of the first bevel gear, and the second operating member corresponds to the second operating port and is exposed from the second operating port; a second bevel gear, which is meshed with the first bevel gear; a second spur gear, which is fixedly connected to the central axis of the second bevel gear and is located on the second side of the second bevel gear; a third spur gear and a fourth spur gear, which are respectively meshed with the second spur gear; A third rack and a fourth rack, the third rack and the fourth rack are arranged in parallel between the third spur gear and the fourth spur gear along the length direction of the handle, the tooth surface of the third rack and the tooth surface of the fourth rack are opposite to each other, the third rack is meshed with the third spur gear, and the fourth rack is meshed with the fourth spur gear; a second guide member, the second guide member is fixed in the handle, and a third guide hole and a fourth guide hole are provided on the second guide member, the third rack is inserted into the third guide hole, and the fourth rack is inserted into the fourth guide hole; the third traction line is connected to the third rack, and the fourth traction line is connected to the fourth rack.

[0008] Optionally, the connection between the mirror 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.

[0009] Optionally, the fiber endoscope also includes: a detachable connecting piece, which is detachably connected to the handle, and the mirror tube is fixedly connected to 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, which is arranged in the first guide groove and can move along the first guide groove, the fifth rack is meshed with the first rack, and the first traction line is connected to the fifth rack; a sixth rack, which is arranged in the second guide groove and can move along the second guide groove, the sixth rack is meshed with the second rack, and the second traction line is connected to the sixth rack; a seventh rack, which is arranged in the third guide groove and can move along the third guide groove, the seventh rack is meshed with the third rack, and the third traction line is connected to the seventh rack; an eighth rack, which is arranged in the fourth guide groove and can move along the fourth guide groove, the eighth rack is meshed with the fourth rack, and the fourth traction line is connected to the eighth rack.

[0010] Optionally, the fiber endoscope also includes: a double spur gear, which is rotatably disposed in the handle, one of the spur gears in the double spur gears is meshed with the first rack and the second rack, and the other spur gear in the double spur gears is meshed with the fifth rack and the sixth rack; a fifth spur gear and a sixth spur gear, the fifth spur gear is meshed with the third rack and the seventh rack respectively, and the sixth spur gear is meshed with the fourth rack and the eighth rack respectively.

[0011] Optionally, 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.

[0012] Optionally, 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.

[0013] Optionally, a replacement bin is provided at the rear end of the handle, and the detachable connector is provided in the replacement bin; and the handle has a cover or a bin door capable of opening the replacement bin.

[0014] Optionally, the detachable connecting piece has a conical shape, and the inner wall of the replacement bin is adapted to the shape of the detachable connecting piece.

[0015] The present invention provides a disposable fiber endoscope with double planes and adjustable angles, comprising a handle and a mirror tube connected to the handle, wherein a camera unit for imaging is installed at the end of the mirror tube, and a first traction mechanism and a second traction mechanism are arranged in a accommodating cavity inside the handle, wherein a first traction line and a second traction line are connected to the first traction mechanism for controlling the bending degree of the mirror tube in a first direction; a third traction line and a fourth traction line are connected to the second traction mechanism for controlling the bending degree of the mirror tube in a second direction, and the first direction and the second direction are perpendicular to each other, so that the observation angle operation of double planes (the plane where the first direction is located and the plane where the second direction is located) can be realized during use, thereby overcoming the disadvantage of blind spots in the field of view of traditional fiber endoscopes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 is a schematic diagram of the overall structure of a fiber endoscope in one embodiment of the present invention; Figure 2 is a schematic diagram of the internal structure of a fiber endoscope in one embodiment of the present invention; Figure 3 It is a schematic structural diagram of a detachable connecting member in a fiber endoscope in one embodiment of the present invention; Figure 4 is a structural schematic diagram of a first traction mechanism in a fiber endoscope in an embodiment of the present invention; Figure 5 It is a structural schematic diagram of a first traction mechanism and a second traction mechanism in a fiber endoscope in an embodiment of the present invention; Figure 6 Schematic diagram of the relative positions of the fifth rack, the sixth rack, the seventh rack and the eighth rack in the fiber endoscope in one embodiment of the present invention; Figure 7 It is a schematic diagram of the connection between the first operating member and the first traction structure in the fiber endoscope in one embodiment of the present invention; Figure 8 A schematic diagram of a partial structure of a first traction mechanism and a second traction mechanism in a fiber endoscope in an embodiment of the present invention; Fig. 9 Another schematic diagram of the structure of the first traction mechanism and the second traction mechanism in the fiber endoscope in one embodiment of the present invention; Fig.10 It is a schematic structural diagram of a handle in a fiber endoscope in one embodiment of the present invention. DETAILED DESCRIPTION

[0018] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0019] It should be clear that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] The disposable fiber endoscope with dual-plane adjustable angles at the end provided by the embodiment of the present invention can solve the problem of observing complex cavity environments and is helpful to reduce blind spots in the visual field.

[0021] The present invention is further described in detail below with reference to the accompanying drawings.

[0022] See also Figure 1 , Figure 2 As shown, a disposable fiber endoscope with dual-plane adjustable angle at the end provided in this embodiment includes a handle 10 , a mirror tube 11 , a first traction mechanism 12 and a second traction mechanism 13 .

[0023] The handle 10 has a receiving cavity 101 therein, and a first operating opening 102 and a second operating opening 103 are formed on a side wall of the handle 10 .

[0024] The first end of the mirror tube 11 is connected to the handle 10, and the second end of the mirror tube 11 is provided with a camera unit (not shown in the figure). The connection line of the camera unit is passed through the mirror tube 11 and extended to the inside of the handle 10; the second end of the mirror tube is bendable.

[0025] The first traction mechanism 12 is disposed in the accommodating cavity 101 inside the handle 10, and the operating end 1211 of the first traction mechanism 12 corresponds to the first operating port 102. The first traction mechanism 12 is connected with a first traction line and a second traction line (not shown in the figure), which are passed through the mirror tube and connected to the second end of the mirror tube 11 to control the second end of the mirror tube 11 to bend along the positive direction (such as the left side) of the first direction (such as bending to the left side). Figure 1 131 position shown) or bend along the negative direction of the first direction (such as the right side) (such as bending to Figure 1 132 position as shown).

[0026] The second traction mechanism 13 is disposed in the accommodating cavity 101 inside the handle 10, and the operating end 1311 of the second traction mechanism 13 corresponds to the second operating port 103. The second traction mechanism 13 is connected with a third traction line and a fourth traction line (not shown in the figure), and the third traction line and the fourth traction line are passed through the mirror tube 11 and connected to the second end of the mirror tube 11 to control the second end of the mirror tube 11 to bend in the positive direction (such as the ventral side) of the second direction (such as bending to Figure 1 121 position shown) or bend in the negative direction (such as the back side) of the second direction (such as bending to Figure 1 122 position shown); wherein the second direction is perpendicular to the first direction.

[0027] The invention provides a fiber endoscope with double planes and adjustable angles at the end, comprising a handle and a mirror tube connected to the handle, a camera unit for imaging is installed at the end of the mirror tube, a first traction mechanism and a second traction mechanism are arranged in a accommodating cavity inside the handle, a first traction line and a second traction line are connected to the first traction mechanism, and are used to control the bending degree of the mirror tube in a first direction; a third traction line and a fourth traction line are connected to the second traction mechanism, and are used to control the bending degree of the mirror tube in a second direction, and the first direction and the second direction are perpendicular to each other, and then the camera unit installed at the second end of the mirror tube is used to perform multi-angle observation, so that the observation angle operation of the double planes (the plane where the first direction is located and the plane where the second direction is located) at the end of the mirror tube can be realized during use.

[0028] Optionally, the first end of the mirror tube is detachably connected to the handle, so that the mirror tube is a disposable mirror tube, which can be detached from the handle and discarded after clinical use, and then replaced with a new mirror tube. Therefore, the end dual-plane adjustable angle fiber endoscope described in this embodiment is called a disposable end dual-plane adjustable angle fiber endoscope.

[0029] See also Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 7 , Figure 8 , Fig. 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.

[0030] Among them, the first rotating shaft 123 is rotatably arranged in 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 operating end 1211 of the first operating member 124 corresponds to the first operating port 102 and is exposed from the first operating port 102 for manual operation.

[0031] The first spur gear 125 is fixed on the first rotating shaft 123. The first rack 126 and the second rack 127 are arranged in parallel along the length direction of the handle and mesh with the first spur gear 125.

[0032] The first guide member 128 is fixed in the handle 10. The first guide member 128 is provided with a first guide hole and a second guide hole. The first rack 126 is passed through the first guide hole, and the second rack 127 is passed through the second guide hole. The first guide member 128 can provide guidance for the linear movement of the first rack 126 and the second rack 127.

[0033] The first traction line is connected to the first rack 126, and the second traction line is connected to the second rack 127; in this way, the first operating member is toggled through the first operating port, and the first operating member drives the first rotating shaft to rotate, and then the first rotating shaft drives the first spur gear fixedly mounted on the first rotating shaft to rotate, and the first spur gear is meshed with the first rack and the second rack, driving the first rack to pass through the first guide hole and the second rack to pass through the second guide hole to move, and then driving the first traction line connected to the first rack and the second traction line connected to the second rack to control the bending of the end of the mirror tube in the first direction (such as the horizontal direction). The moving direction of the first rack is opposite to the moving direction of the second rack.

[0034] See also Figure 1 , Figure 2 , Figure 8 , Fig. 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.

[0035] 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 at a first side of the first bevel gear 133. The second operating member 134 corresponds to the second operating port 103 and is exposed from the second operating port 103 for manual operation. The second bevel gear 135 meshes with the first bevel gear 133 ; the second spur gear 136 is fixedly connected to the central axis 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.

[0036] The third rack 139 and the fourth rack 140 are arranged in parallel between the third spur gear 137 and the fourth spur gear 138 along the length direction of the handle 10, the tooth surface of the third rack 139 and the tooth surface of the fourth rack 140 are opposite to each other, the third rack 139 is meshed with the third spur gear 137, and the fourth rack 140 is meshed with the fourth spur gear 138. The third rack 139 and the fourth rack 140 are arranged in parallel between the third spur gear 137 and the fourth spur gear 138 along the length direction of the handle 10, which can reduce the space occupied by the third rack 139 and the fourth rack 140, making the internal structure of the handle more compact.

[0037] The second guide member 141 is fixed in the handle 10, and a third guide hole and a fourth guide hole are provided on the second guide member 141. The third rack 139 is inserted into the third guide hole, and the fourth rack 140 is inserted into the fourth guide hole. The second guide member 141 can provide guidance for the linear movement of the third rack 139 and the fourth rack 140.

[0038] The third traction line is connected to the third rack 139, and the fourth traction line is connected to the fourth rack 140; in this way, the second operating member is toggled through the second operating port, and the second operating member is connected to the central axis of the first bevel gear, driving the first bevel gear to move, and the first bevel gear is meshed with the second bevel gear, so that the moving first bevel gear drives the second bevel gear to move, and the second bevel gear drives the second spur gear on the same central axis to rotate, and the second spur gear drives the third spur gear and the fourth spur gear to rotate, and the third spur gear drives the third rack to move, and the fourth spur gear drives the fourth rack to move, and then drives the third traction line connected to the third rack and the fourth traction line connected to the fourth rack to move, so as to control the bending of the end of the mirror tube in the second direction (such as the horizontal direction). The moving direction of the third rack is opposite to the moving direction of the fourth rack.

[0039] See also Figure 1 , Figure 2 In some embodiments, the connection between the scope tube 11 and the handle 10, the connection between the first traction line and the first rack 126, the connection between the second traction line and the second rack 127, the connection between the third traction line and the third rack 139, and the connection between the fourth traction line and the fourth rack 140 are all detachable, so that the scope tube together with the traction lines therein can be separated from the handle. In actual use, after an endoscopic examination, the scope tube together with the traction lines therein can be separated from the handle and discarded, and the handle can be retained for reuse so as to be assembled with a new scope tube to form a new fiber endoscope; in other words, the scope tube in this embodiment is a disposable scope tube.

[0040] In order to facilitate the rapid separation of the mirror tube and the pull wires therein from the handle, see Figure 1 , Figure 2 , Figure 3In some embodiments, the fiber endoscope further comprises a detachable connecting member 14, the detachable connecting member 14 is detachably connected to the handle 10, and the mirror tube 11 is fixedly connected to the detachable connecting member 14; the detachable connecting member 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 arranged in the first guide groove 142 and can move along the first guide groove 142, the fifth rack 146 is meshed with the first rack 126, and the first traction line is connected to the fifth rack 146; the sixth rack 147 is arranged in the second guide groove The sixth rack 147 is meshed with the second rack 127, and the second traction line is connected to the sixth rack 147; the seventh rack 148 is arranged in the third guide groove 144 and can move along the third guide groove 144, the seventh rack 148 is meshed with the third rack 139, and the third traction line is connected to the seventh rack 148; the eighth rack 149 is arranged in the fourth guide groove 145 and can move along the fourth guide groove 145, the eighth rack 149 is meshed with the fourth rack 140, and the fourth traction line is connected to the eighth rack 149. In this embodiment, with the help of the detachable connector 14, the mirror tube together with the traction lines therein can be easily separated from the handle.

[0041] In the above embodiment, the fifth rack gear 146 may be directly meshed with the first rack gear 126 , and the sixth rack gear 147 may be directly meshed with the second rack gear 127 . Since the fifth rack 146 and the sixth rack 147 are disposable parts, and the first rack 126 and the second rack 127 are retained for reuse, if the fifth rack 146 is directly meshed with the first rack 126, and the sixth rack 147 is directly meshed with the second rack 127, on the one hand, in actual use, and in the process of separating the fifth rack 146 from the first rack 126, and in the process of separating the sixth rack 147 from the second rack 127, the first rack 126 and the second rack 127 will inevitably be worn or damaged, 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 cause the inconvenience of separating the fifth rack 146 from the first rack 126, and the inconvenience of separating the sixth rack 147 from the second rack 127.

[0042] To increase the life of the reusable handle and facilitate separation, see Figure 2 and Figure 4 In some embodiments, the fiber endoscope further includes a double spur gear 15, which is rotatably disposed in the handle 10, wherein one of the spur gears in the double spur gear 15 is meshed with the first rack 126 and the second rack 127, and the other spur gear in the double spur gear 15 is meshed with the fifth rack 146 and the sixth rack 147.

[0043] In this embodiment, by setting up a double spur gear 15, the first rack 126 and the second rack 127 are only meshed with one of the spur gears in the double spur gear 15, thereby reducing the meshing length of the first rack 126 and the second rack 127, which is beneficial to reducing the wear of the first rack 126 and the second rack 127, thereby increasing the service life of the handle.

[0044] In addition, the fifth rack 146 and the sixth rack 147 are meshed with another spur gear in the double-linked spur gear 15 , so that the meshing length of the fifth rack 146 and the sixth rack 147 is relatively short, which facilitates rapid separation from the double-linked spur gear 15 .

[0045] Furthermore, by providing a double-coupled spur gear 15, the relative positions of the fifth rack 146 and the sixth rack 147 and the first rack 126 and the second rack 127 can be adjusted by changing the length of the double-coupled spur gear 15, so that the first traction line and the second traction line can be easily arranged at the position of the longitudinal center plane of the mirror tube in the first direction, so as to provide precise control of the bending direction and bending angle of the end of the mirror tube in the first direction.

[0046] Similarly, in order to increase the service life of the reusable handle and facilitate separation, see Figure 2 and Figure 5 In some embodiments, the fiber endoscope further includes a fifth spur gear 151 and a sixth spur gear 152, wherein the fifth spur gear 151 is meshed with the third rack 139 and the seventh rack 148, respectively, and the sixth spur gear 152 is meshed 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 the technical effect of setting the double spur gear 15. In particular, by setting the fifth spur gear 151 and the sixth spur gear 152, the relative positions 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 the appropriate lengths of the fifth spur gear 151 and the sixth spur gear 152, so that the third traction line and the fourth traction line are conveniently arranged at the position of the longitudinal center plane in the second direction of the mirror tube, so as to achieve the precise control of the bending direction and bending angle of the end of the mirror tube in the second direction.

[0047] See also 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 where the seventh rack 148 and the eighth rack 149 are located is perpendicular to the plane where the fifth rack 146 and the sixth rack 147 are located. 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.

[0048] See also 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, and the tooth surface of the seventh rack 148 and the tooth surface of the eighth rack 149 are opposite to each other. This can further increase the compactness of the internal structure of the handle.

[0049] See also Figure 2 In some embodiments, a replacement bin 16 is provided at the rear end of the handle 10, and the detachable connector 14 is provided in the replacement bin 16; the handle 10 has a cover or a bin door capable of opening the replacement bin; in this way, during use, when the lens tube needs to be replaced, it is only necessary to open the replacement bin at the rear 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 put the detachable connector 14 connected with the new lens tube into the replacement bin at the rear 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.

[0050] See also Figure 2 and Figure 3 In some embodiments, the detachable connector 14 is conical in shape, and the inner wall of the replacement bin 16 is adapted to the shape of the detachable connector 14; in this way, disassembly and replacement can be better performed during replacement, and at the same time, the inner wall of the replacement bin can provide a limiting effect for the detachable connector.

[0051] In other embodiments, the inner wall of the replacement bin is provided with an internal thread, and the outer wall of the detachable connector 14 is provided with an external thread. The external thread on the outer wall of the detachable connector 14 can be threadably connected to or detached from the internal thread on the inner wall of the replacement bin.

[0052] In other embodiments, the scope tube includes an inner hose, a serpentine structure and a rubber layer; the serpentine structure is wrapped around the outer surface of the inner hose, the outer side of the serpentine structure is wrapped with a rubber layer, and the spacing density between the joints of the serpentine structure at the second end of the scope tube is smaller than the spacing density between the joints of the serpentine structure at the first end of the scope tube.

[0053] See also Fig.10 When assembling the fiber endoscope, the shaft and the gear set can be assembled first and then placed in the handle, thereby reducing the difficulty of assembling the fiber endoscope.

[0054] The following takes the examination of a supine patient as an example to illustrate the relevant operations of the fiber endoscope according to the embodiment of the present invention.

[0055] For a patient lying on his back, a fiber endoscope is used for examination. When the fiber endoscope reaches the target area, the first operating member 124 drives the first rotating shaft 123 to rotate in the forward direction, and the first rotating shaft 123 drives the first spur gear 125 to rotate. The first spur gear 125 is meshed with the first rack 126, driving the first rack 126 and the first traction line to move. The first traction line pulls the second end of the endoscope tube to bend toward the left side of the patient (e.g., bend to Figure 1 131 position shown); The first operating member 124 drives the first rotating shaft 123 to rotate in the opposite direction, and the first rotating shaft 123 drives the first spur gear 125 to rotate. The first spur gear 125 meshes with the second rack 127, driving the second rack 127 and the second traction line to move. The second traction line pulls the second end of the endoscope tube to bend toward the right side of the patient (e.g., bend to Figure 1 132 position shown); The first bevel gear 133 is driven to rotate forwardly by the second operating member 134, and then the first bevel gear 133 drives the second bevel gear 135 to move, and the second bevel gear 133 drives the second spur gear 136 to transmit, and then the second spur gear 136 drives the third spur gear 137 to rotate, and the third spur gear 137 drives the third rack 139, and then the third rack 139 pulls the third traction line, and the third traction line pulls the second end of the mirror tube to bend toward the back side of the patient (such as bending to Figure 1 122 position as shown).

[0056] The first bevel gear 133 is driven to rotate in the opposite direction by the second operating member 134, and then the first bevel gear 133 drives the second bevel gear 135 to move, and the second bevel gear 135 drives the second spur gear 136 to transmit, and then the second spur gear 136 drives the fourth spur gear 138 to rotate, and the fourth spur gear 138 drives the fourth rack 140, and then the fourth rack 140 pulls the fourth traction line, and the fourth traction line pulls the second end of the mirror tube to bend toward the ventral side of the patient (such as bending to Figure 1 121 position as shown).

[0057] In some embodiments, through the coordinated operation of the first operating member and the second operating member, a complex structure area can be observed.

[0058] For example, when the fiber endoscope reaches the target area and needs to focus on observing the left area, the first operating member 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, drives the first rack 126 and the first traction line to move, and the first traction line pulls the second end of the mirror tube 11 to bend toward the left side of the patient. In this state, the second operating member 134 can 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, and the second bevel gear 135 drives the second spur gear 136 to transmit, and then the second spur gear 136 drives the third spur gear 137 to rotate, the third spur gear 137 drives the third rack 139, and then the third rack 139 pulls the third traction line, and the third traction line pulls the second end of the mirror tube 11 to bend toward the back of the patient. In this way, the second end of the mirror tube can be bent toward the back side of the left side, and the back side of the left side of the patient can be observed.

[0059] For another example, the first operating member 124 can be used to drive the first rotating shaft 123 to rotate forward, and the first rotating shaft 123 drives the first spur gear 125 to rotate forward, and the first spur gear 125 meshes with the first rack 126, driving the first rack 126 and the first traction line 125 to move, and the first traction line 125 pulls the second end of the mirror tube to bend toward the left side of the patient. In this state, the second operating member 134 can be operated to drive the first bevel gear 133 to rotate in the opposite direction, and then the first bevel gear 133 drives the second bevel gear 135 to move, and the second bevel gear 135 drives the second spur gear 136 to transmit, and then the second spur gear 136 drives the fourth spur gear 138 to rotate, and the fourth spur gear 138 drives the fourth rack 140, and then the fourth rack 140 pulls the fourth traction line, and the fourth traction line pulls the second end of the mirror tube to bend toward the ventral side of the patient. In this way, the second end of the mirror tube can be bent toward the left ventral side, and the ventral direction of the left side of the patient can be observed.

[0060] For another example, when the fiber endoscope reaches the target area and the right area needs to be observed in particular, the first operating member 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, drives the second rack 127 and the second traction line to move, and the second traction line pulls the second end of the mirror tube to bend toward the right side of the patient. In this state, the second operating member 134 can be operated to drive the first bevel gear 133 to rotate forward, and then the first bevel gear 133 drives the second bevel gear 135 to move, and the second bevel gear 135 drives the second spur gear 136 to transmit, and then the second spur gear 136 drives the third spur gear 137 to rotate, and the third spur gear 137 drives the third rack 139, and then the third rack 139 pulls the third traction line, and the third traction line pulls the second end of the mirror tube to bend toward the back side of the patient. In this way, the second end of the mirror tube can be bent toward the back side of the right side, and the back side of the right side of the patient can be observed.

[0061] For example, the first operating member 124 drives the first rotating shaft 123 to rotate in the opposite direction, and the first rotating shaft 123 drives the first spur gear 125 to rotate, and the first spur gear 125 meshes with the second rack 127, driving the second rack 127 and the second traction line to move, and the second traction line pulls the second end of the mirror tube to bend toward the right side of the patient. In this state, the second operating member 134 can be operated to drive the first bevel gear 133 to rotate in the opposite direction, and then the first bevel gear 133 drives the second bevel gear 135 to move, and the second bevel gear 135 drives the second spur gear 136 to transmit, and then the second spur gear 136 drives the fourth spur gear 138 to rotate, and the fourth spur gear 138 drives the fourth rack 140, and then the fourth rack 140 pulls the fourth traction line, and the fourth traction line pulls the second end of the mirror tube to bend toward the ventral side of the patient. In this way, the second end of the mirror tube can be bent toward the ventral side of the right side, and the ventral direction of the right side of the patient can be observed.

[0062] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0063] The above content has described the embodiments of the present invention in detail. Those skilled in the art can design and modify the device and its use within the scope of the present invention according to the on-site construction conditions.

[0064] Each embodiment in this specification is described in a related manner, and the same or similar parts between the embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0065] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A fiber endoscope with double-plane adjustable angle at the end, characterized in that: include: A handle, wherein the handle has a receiving cavity therein, and a first operating opening and a second operating opening are formed on a side wall of the handle; A mirror tube, wherein the first end of the mirror tube is connected to the handle, the second end of the mirror tube is provided with a camera unit, the connection line of the camera unit is passed through the mirror tube and extended to the inside of the handle; the second end of the mirror tube is bendable; a first traction mechanism, the first traction mechanism being arranged in the accommodating cavity inside the handle, the operating end of the first traction mechanism corresponding to the first operating port, the first traction mechanism being connected with a first traction line and a second traction line, the first traction line and the second traction line being passed through the mirror tube and connected to the second end of the mirror tube to control the second end of the mirror tube to bend positively along the first direction or negatively along the first direction; A 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 to the second operating port, the second traction mechanism is connected with a third traction line and a fourth traction line, the third traction line and the fourth traction line are passed through the mirror tube and connected to the second end of the mirror tube to control the second end of the mirror tube to bend positively along the second direction or negatively along the second direction; wherein the second direction is perpendicular to the first direction.

2. The fiber endoscope according to claim 1, characterized in that: The first traction mechanism comprises: a first rotating shaft, the first rotating shaft being rotatably disposed in the handle; a first operating member, the first operating member is connected to the first rotating shaft and can drive the first rotating shaft to rotate, and a manual operating end of the first operating member corresponds to the first operating port and is exposed from the first operating port; a first spur gear, wherein the first spur gear is fixed on the first rotating shaft; A first rack and a second rack, wherein the first rack and the second rack are arranged in parallel along the length direction of the handle and mesh with the first spur gear; a first guide member, the first guide member being fixed in the handle, the first guide member being provided with a first guide hole and a second guide hole, the first rack being passed through the first guide hole, and the second rack being passed through the second guide hole; The first pulling line is connected to the first rack, and the second pulling line is connected to the second rack.

3. The fiber endoscope according to claim 1, characterized in that: The second traction mechanism comprises: a first bevel gear, the first bevel gear being rotatably connected to the handle; A second operating member, the second operating member is connected to the central axis of the first bevel gear and is located on a first side of the first bevel gear, the second operating member corresponds to the second operating port and is exposed from the second operating port; a second bevel gear, the second bevel gear meshing with the first bevel gear; a second spur gear, the second spur gear being fixedly connected to the central axis of the second bevel gear and being located at a second side of the second bevel gear; a third spur gear and a fourth spur gear, wherein the third spur gear and the fourth spur gear are respectively meshed with the second spur gear; a third rack and a fourth rack, wherein 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 meshed with the third spur gear, and the fourth rack is meshed with the fourth spur gear; a second guide member, the second guide member being fixed in the handle, the second guide member being provided with a third guide hole and a fourth guide hole, the third rack being passed through the third guide hole, and the fourth rack being passed through the fourth guide hole; The third traction line is connected to the third rack, and the fourth traction line is connected to the fourth rack.

4. The fiber endoscope according to claim 3, characterized in that: 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 all detachably connected.

5. The fiber endoscope according to claim 4, characterized in that: The fiber endoscope also includes: A detachable connecting member, wherein the detachable connecting member is detachably connected to the handle, and the mirror tube is fixedly connected to the detachable connecting member; the detachable connecting member 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 being disposed in the first guide groove and being movable along the first guide groove, the fifth rack being meshed with the first rack, and the first traction line being connected to the fifth rack; a sixth rack, the sixth rack being disposed in the second guide groove and being movable along the second guide groove, the sixth rack being meshed with the second rack, and the second traction line being connected to the sixth rack; a seventh rack, the seventh rack being disposed in the third guide groove and being movable along the third guide groove, the seventh rack being meshed with the third rack, and the third traction line being connected to the seventh rack; An eighth rack, wherein the eighth rack is disposed in the fourth guide groove and can move along the fourth guide groove, the eighth rack is meshed with the fourth rack, and the fourth traction line is connected to the eighth rack.

6. The fiber endoscope according to claim 5, characterized in that: The fiber endoscope also includes: A double spur gear, wherein the double spur gear is rotatably disposed in the handle, one of the double spur gears is meshed with the first rack and the second rack, and the other of the double spur gears is meshed with the fifth rack and the sixth rack; A fifth spur gear and a sixth spur gear, wherein the fifth spur gear is meshed with the third rack and the seventh rack respectively, and the sixth spur gear is meshed with the fourth rack and the eighth rack respectively.

7. The fiber endoscope according to claim 6, characterized in that: 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 fiber endoscope according to claim 7, characterized in that: 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 fiber endoscope according to claim 5, characterized in that: A replacement bin is provided at the tail end of the handle, and the detachable connector is arranged in the replacement bin; and a cover or a bin door capable of opening the replacement bin is provided on the handle.

10. The fiber endoscope according to claim 9, characterized in that: The outer shape of the detachable connecting piece is conical, and the inner wall of the replacement bin is adapted to the outer shape of the detachable connecting piece.

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