Hard endoscope capable of changing direction

Abstract

The utility model discloses a rigid endoscope capable of changing directions, which relates to the technical field of endoscopes and comprises a light transmitting bundle connector, the lower end of the light transmitting bundle connector is communicated with an endoscope body, the front end of the endoscope body is fixedly connected with an endoscope tube, the front end of the endoscope tube is fixedly connected with a tip portion, and a light transmitting bundle used for guiding light from the light transmitting bundle connector to the tip portion is installed inside the light transmitting bundle connector. The light guide bundle penetrates through the interior of the endoscope tube and is installed in the tip part, the transmission direction of the light guide bundle is consistent with the direction of the observation end of the tip part, the rear end of the endoscope body is fixedly connected with an eyepiece part, the rear end of the eyepiece part is fixedly connected with a lens for observation, and an adjusting mechanism for changing the observation angle is arranged in the tip part and comprises cover glass. The cover glass is fixedly connected to the front side position in the tip part, the trigger rotates around the fixed shaft, the trigger pulls the steel wire rope rotationally connected in the middle to move, the steel wire rope drives the rotating seat to move, the rotating seat drives the objective lens to rotate around the rotating shaft, angle adjustment of the objective lens is achieved, and an attending doctor can observe at multiple angles.

Description

Technical Field

[0001] The utility model relates to the technical field of endoscopes, in particular to a direction-adjustable rigid endoscope. Background Art

[0002] Rigid endoscope is an important medical device, mainly used for the diagnosis and treatment of lesions in the natural cavities of the superficial and shallow parts of the human body and in the oral cavity opened by puncture. The angle of the head of the traditional rigid endoscope is fixed and cannot be changed at will during the operation. During nasal endoscopic surgery, due to the fixed angle of the lens, there are still some bony and vascular obstructions during the exposure of some anatomical positions and tumor resection, which can easily lead to cutting damage to the path tissue, a high incidence of surgical complications, and a low complete tumor resection rate.

[0003] Patent publication number CN220967267U describes a reverse electronic endoscope, which installs a camera unit at the distal end of the catheter and biases the field of view of the camera unit toward the proximal end of the catheter, thereby preventing the operation of the electronic endoscope from affecting the normal operation of the surgeon. However, the camera unit of the electronic endoscope cannot freely adjust the viewing angle, and the operator needs to flip the endoscope multiple times to obtain a normal viewing angle, which reduces the efficiency of the operation. Utility Model Content

[0004] The purpose of the present invention is to provide a direction-adjustable rigid endoscope to solve the problems in the background technology.

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

[0006] A variable-direction rigid endoscope includes a light guide connector, the lower end of which is connected to the mirror body, the front end of the mirror body is fixedly connected to the mirror tube, the front end of the mirror tube is fixedly connected to the tip end, a light guide is installed inside the light guide connector for guiding light from the light guide connector to the tip end, the light guide passes through the mirror tube, and the light guide is installed inside the tip end, the transmission direction of the light guide is consistent with the observation end direction of the tip end, the rear end of the mirror body is fixedly connected to the eyepiece part, the rear end of the eyepiece part is fixedly connected to the lens for observation, an adjustment mechanism for changing the observation angle is provided inside the tip end, the adjustment mechanism includes a cover glass, the cover glass is fixedly connected to the front side position inside the tip end, an objective lens for imaging is provided at the rear of the tip end and the inside position of the tip end, and an adjustment device for adjusting the objective lens angle is provided on the objective lens.

[0007] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions:

[0008] In an optional solution: the adjustment device includes a rotating shaft, and the two ends of the objective lens are respectively fixedly connected to a rotating shaft. The objective lens is rotatably connected to the inner wall of the tip end through the rotating shaft. Several fixed sleeves are provided at the rear and internal positions of the objective lens. A cylindrical lens glass for transmitting imaging is fixedly connected between the two fixed sleeves. A transmission assembly for driving the objective lens to rotate is provided at the lower end of the objective lens, and a reset mechanism for resetting the objective lens is provided at the upper end of the objective lens.

[0009] In an optional solution: the transmission assembly includes a rotating seat, which is fixedly connected to the lower end of the objective lens. The objective lens is connected to one end of a steel wire rope through the rotating seat. A groove is provided at the lower end of the fixed sleeve, and the steel wire rope passes through the groove. The other end of the steel wire rope is provided with a driving element for pulling the steel wire rope to move.

[0010] In an optional solution: the driving element includes a trigger, the middle of the trigger is rotated to connect one end of the wire rope, a fixed shaft is provided on each side of the trigger, a mounting groove is provided at the lower end of the mirror body, the trigger is rotated to connect the mirror body in the position inside the mounting groove through the fixed shaft, and a support member is provided on the side of the trigger for supporting and maintaining the trigger position.

[0011] In an optional solution: the support member includes a No. 2 spring, one end of the No. 2 spring is fixedly connected to the side of the trigger, the other end of the No. 2 spring is fixedly connected to the inner wall of the grip, and the upper end of the objective lens is fixedly connected to the lower end of the lens body.

[0012] In an optional solution: the reset mechanism includes a transmission plate. The transmission plate is fixedly connected to the upper end of the objective lens, the upper end of the transmission plate is fixedly connected to the No. 1 spring, the upper end of the No. 1 spring is fixedly connected to the fixed plate, and the upper end of the fixed plate is fixedly connected to the inner wall of the tip end.

[0013] In an optional solution, the cover glass is made of sapphire glass and has a gold-plated layer on the front end.

[0014] In an optional solution, the cylindrical lens glass is made of tempered glass.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. The utility model rotates around a fixed axis through a trigger, which pulls the steel wire rope connected in the middle to move, and the steel wire rope drives the rotating seat to move, and the rotating seat drives the objective lens to rotate around the rotating axis to achieve angle adjustment of the objective lens, so that the attending physician can observe from multiple angles.

[0017] 2. The utility model uses the No. 1 spring to perform contraction movement, and the No. 1 spring brings the objective lens to reset, keeping the position of the objective lens fixed, thereby realizing rapid switching and fixing of the objective lens observation angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the present utility model.

[0019] Figure 2 This is a schematic structural diagram of the installation slot of the present utility model.

[0020] Figure 3 It is a cross-sectional view of the tip portion of the present invention.

[0021] Figure 4 It is a structural schematic diagram of the steel wire rope of the present utility model.

[0022] Figure 5 It is a structural schematic diagram of the trigger of the present utility model.

[0023] Figure 6 This is a schematic structural diagram of the No. 2 spring of the present utility model.

[0024] Reference Numerals: 101. Light Guide Connector, 102. Eyepiece, 103. Lens, 104. Lens Tube, 105. Tip, 106. Lens Body, 107. Light Guide, 201. Cylindrical Lens, 202. Mounting Sleeve, 203. Objective Lens, 204. Cover Glass, 205. Rotating Shaft, 206. Rotating Base, 207. Wire Rope, 208. Groove, 209. Transmission Plate, 210. Spring (No. 1), 211. Mounting Plate, 301. Mounting Slot, 302. Grip, 303. Trigger, 304. Fixed Shaft, 305. Spring (No. 2). DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0026] In one embodiment, Figures 1-6As shown, a reversible rigid endoscope includes a light guide connector 101, the lower end of the light guide connector 101 is connected to the mirror body 106, the front end of the mirror body 106 is fixedly connected to the mirror tube 104, the front end of the mirror tube 104 is fixedly connected to the tip portion 105, and a light guide 107 for guiding light from the light guide connector 101 to the tip portion 105 is installed inside the light guide connector 101. The light guide 107 passes through the mirror tube 104 and is installed inside the tip portion 105. The transmission direction of the light guide 107 is consistent with the observation direction of the tip portion 105. The rear end of the mirror body 106 is fixedly connected to the eyepiece portion 102, and the rear end of the eyepiece portion 102 is fixedly connected to the lens 103 for observation. The tip portion 10 An adjustment mechanism for changing the observation angle is provided inside the tip portion 105. The adjustment mechanism includes a cover glass 204 fixedly connected to the front side of the tip portion 105. An objective lens 203 for imaging is provided behind and inside the tip portion 105. An adjustment device for adjusting the angle of the objective lens 203 is provided on the objective lens 203. Different adapters can be installed through the light guide connector 101 to connect to light guides 107 of different manufacturers' standards. The camera system is connected through the lens 103. The light guide 107 guides light from the light guide connector 101 to the observation end of the tip portion 105. The cover glass 204 maintains the sealing inside the tip portion 105, and the image is formed through the objective lens 203.

[0027] In one embodiment, Figure 2 As shown, the adjustment device includes a rotating shaft 205, and both ends of the objective lens 203 are fixedly connected to a rotating shaft 205. The objective lens 203 is rotatably connected to the inner wall of the tip portion 105 through the rotating shaft 205. A plurality of fixing sleeves 202 are provided at the rear of the objective lens 203 and the inner position of the tip portion 105. A cylindrical lens glass 201 for transmitting imaging is fixedly connected between the two fixing sleeves 202. A transmission assembly for driving the objective lens 203 to rotate is provided at the lower end of the objective lens 203. A reset mechanism for resetting the objective lens 203 is provided at the upper end of the objective lens 203. The rotating shaft 205 provides a rotation condition for the objective lens 203, and the fixing sleeve 202 provides a fixing condition for the cylindrical lens glass 201. The objective lens 203 forms an image, and the image is transmitted to the lens 103 through the cylindrical lens glass 201, thereby realizing observation work inside the patient's body.

[0028] In one embodiment, Figure 2 and Figure 3As shown, the transmission assembly includes a rotating seat 206, which is fixedly connected to the lower end of the objective lens 203. The objective lens 203 is rotatably connected to one end of a steel wire rope 207 through the rotating seat 206. A groove 208 is provided at the lower end of the fixed sleeve 202. The steel wire rope 207 passes through the groove 208. The other end of the steel wire rope 207 is provided with a driving element for pulling the steel wire rope 207 to move. Through the movement of the steel wire rope 207, the steel wire rope 207 drives the rotating seat 206 to move. The rotating seat 206 drives the objective lens 203 to rotate around the rotating axis 205, thereby realizing the angle adjustment of the objective lens 203 and realizing the rapid adjustment of the observation angle. The groove 208 provided on the fixed sleeve 202 provides space for the movement of the steel wire rope 207.

[0029] In one embodiment, Figure 1 As shown, the driving element includes a trigger 303, which is connected to one end of the steel wire rope 207 in a rotating manner in the middle. A fixed shaft 304 is provided on each side of the trigger 303. A mounting slot 301 is provided at the lower end of the mirror body 106. The trigger 303 is connected to the mirror body 106 in a rotating manner in the mounting slot 301 via the fixed shaft 304. A support member for supporting and maintaining the position of the trigger 303 is provided on the side of the trigger 303. When the trigger 303 rotates around the fixed shaft 304, the trigger 303 pulls the steel wire rope 207 connected in the middle to move, providing power for the movement of the steel wire rope 207. The mounting slot 301 provided at the lower end of the mirror body 106 provides space conditions for the rotation of the trigger 303.

[0030] In one embodiment, Figure 1 As shown, the support member includes a No. 2 spring 305, one end of the No. 2 spring 305 is fixedly connected to the side of the trigger 303, and the other end of the No. 2 spring 305 is fixedly connected to the inner wall of the grip 302. The upper end of the objective lens 203 is fixedly connected to the lower end of the lens body 106, and the grip 302 provides gripping conditions and fixation. When the trigger 303 moves toward the grip 302, the trigger 303 shrinks. When the trigger 303 is released, the No. 2 spring 305 pushes the trigger 303 to reset. The reset of the trigger 303 drives the steel wire rope 207 to reset, and the reset of the steel wire rope 207 drives the rotating seat 206 to reset.

[0031] In one embodiment, Figure 2 and Figure 3 As shown, the reset mechanism includes a transmission plate 209. The transmission plate 209 is fixedly connected to the upper end of the objective lens 203, the upper end of the transmission plate 209 is fixedly connected to a No. 1 spring 210, the upper end of the No. 1 spring 210 is fixedly connected to a fixed plate 211, and the upper end of the fixed plate 211 is fixedly connected to the inner wall of the tip portion 105. When the wire rope 207 pulls the rotating seat 206, the No. 1 spring 210 extends. When the wire rope 207 is released, the No. 1 spring 210 contracts. The No. 1 spring 210 resets the objective lens 203 and keeps the position of the objective lens 203 fixed.

[0032] The above embodiment discloses a directional rigid endoscope, wherein different adapters are installed through the light guide connector 101 to connect the light guide 107 of different manufacturers' standards, and the camera system is connected through the lens 103. The light guide 107 guides the light from the light guide connector 101 to the observation end of the tip end 105. The tip end 105 is extended into the observation position, and the light guide 107 guides the light from the light guide connector 101 to the observation end of the tip end 105. When the observation angle needs to be adjusted, the trigger 303 is rotated, and the trigger 303 is turned. 3 Pull the steel wire rope 207 connected in the middle to move, the steel wire rope 207 drives the rotating seat 206 to move, and the rotating seat 206 drives the objective lens 203 to rotate around the rotating axis 205 to adjust the angle of the objective lens 203. After the observation is completed, release the trigger 303, and the No. 2 spring 305 pushes the trigger 303 to reset. The reset of the trigger 303 drives the steel wire rope 207 to reset, and the reset of the steel wire rope 207 drives the rotating seat 206 to reset, and the No. 1 spring 210 contracts, and the No. 1 spring 210 drives the objective lens 203 to reset.

[0033] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A reversible rigid endoscope, comprising a light guide connector (101), the lower end of the light guide connector (101) being connected to a mirror body (106), the front end of the mirror body (106) being fixedly connected to a mirror tube (104), the front end of the mirror tube (104) being fixedly connected to a tip end portion (105), a light guide (107) for guiding light from the light guide connector (101) to the tip end portion (105) being installed inside the light guide connector (101), the light guide (107) passing through the mirror tube (104), the light guide (107) being installed inside the tip end portion (105), the transmission direction of the light guide (107) being consistent with the observation direction of the tip end portion (105), the rear end of the mirror body (106) being fixedly connected to an eyepiece portion (102), the rear end of the eyepiece portion (102) being fixedly connected to a lens (103) for observation, characterized in that: The invention also includes: an adjusting mechanism for changing the observation angle is provided inside the tip portion (105); the adjusting mechanism includes a cover glass (204); the cover glass (204) is fixedly connected to the front side of the tip portion (105); an objective lens (203) for imaging is provided behind the tip portion (105) and inside the tip portion (105); and an adjusting device for adjusting the angle of the objective lens (203) is provided on the objective lens (203).

2. The variable-direction rigid endoscope according to claim 1, characterized in that: The adjustment device comprises a rotating shaft (205), two ends of the objective lens (203) are respectively fixedly connected to a rotating shaft (205), the objective lens (203) is rotatably connected to the inner wall of the front end portion (105) via the rotating shaft (205), a plurality of fixing sleeves (202) are provided at the rear of the objective lens (203) and the interior of the front end portion (105), a cylindrical lens glass (201) for transmitting imaging is fixedly connected between the two fixing sleeves (202), a transmission assembly for driving the objective lens (203) to rotate is provided at the lower end of the objective lens (203), and a reset mechanism for resetting the objective lens (203) is provided at the upper end of the objective lens (203).

3. The variable-direction rigid endoscope according to claim 2, characterized in that: The transmission assembly comprises a rotating seat (206), the rotating seat (206) is fixedly connected to the lower end of the objective lens (203), the objective lens (203) is rotatably connected to one end of a steel wire rope (207) through the rotating seat (206), the lower end of the fixed sleeve (202) is provided with a groove (208), the steel wire rope (207) passes through the groove (208), and the other end of the steel wire rope (207) is provided with a driving element for pulling the steel wire rope (207) to move.

4. The variable-direction rigid endoscope according to claim 3, characterized in that: The driving element includes a trigger (303), the middle of the trigger (303) is rotatably connected to one end of the wire rope (207), a fixed shaft (304) is provided on both sides of the trigger (303), a mounting groove (301) is provided at the lower end of the mirror body (106), the trigger (303) is rotatably connected to the mirror body (106) at an internal position of the mounting groove (301) through the fixed shaft (304), and a support member for supporting and maintaining the position of the trigger (303) is provided on the side of the trigger (303).

5. The variable-direction rigid endoscope according to claim 4, characterized in that: The support member comprises a No. 2 spring (305), one end of the No. 2 spring (305) is fixedly connected to the side of the trigger (303), the other end of the No. 2 spring (305) is fixedly connected to the inner wall of the grip (302), and the upper end of the objective lens (203) is fixedly connected to the lower end of the lens body (106).

6. The variable-direction rigid endoscope according to claim 2, characterized in that: The reset mechanism comprises a transmission plate (209). The transmission plate (209) is fixedly connected to the upper end of the objective lens (203), the upper end of the transmission plate (209) is fixedly connected to a No. 1 spring (210), the upper end of the No. 1 spring (210) is fixedly connected to a fixing plate (211), and the upper end of the fixing plate (211) is fixedly connected to the inner wall of the tip portion (105).

7. The variable-direction rigid endoscope according to claim 1, characterized in that: The cover glass (204) is made of sapphire glass, and a gold-plated layer is provided on the tip (105).

8. The variable-direction rigid endoscope according to claim 2, characterized in that: The cylindrical lens glass (201) is made of tempered glass.

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