A nasopharyngeal carcinoma endoscope

Abstract

The present invention provides a nasopharyngeal carcinoma endoscope, which relates to the technical field of endoscopes, and includes: an extension hose, an imaging mechanism, an illumination structure, and a traction mechanism; the extension hose is in the outermost layer, and is used to cover and protect the imaging mechanism, the illumination structure, and the traction mechanism, and guide the imaging mechanism to a designated position; the imaging mechanism is used to capture images of a human cavity. When in use, a wrapping air bag is provided at the end of the extension hose to cover and protect the optical lens, and a folding portion is provided on the outer surface of the data transmission line, and a corrugated bag is covered on the outer surface of the folding portion, and a pressure-conducting tube is used to connect the pressure-transmitting portion and the telescopic control portion. When inserted into the human cavity at the initial stage, the optical lens is protected by the wrapping air bag and will not contact the secretions in the cavity. When approaching the lesion area, the optical lens is pushed to the outside of the extension hose by pressure extension for observation, thereby reducing the contamination of the secretions to the optical lens.

Description

Technical Field

[0001] The invention relates to the technical field of endoscopes, in particular to an endoscope for nasopharyngeal carcinoma. Background Art

[0002] Endoscopy is an optical examination instrument that is inserted from outside the body through the natural cavity of the human body to examine diseases inside the body.

[0003] An endoscope generally includes an optical lens, an extension hose and an operating handle. During operation, the optical lens is inserted into the human body through the extension hose, and observation is performed through devices such as an eyepiece or a screen on the operating handle.

[0004] When examining the nasopharynx, it is often necessary to use an endoscope to probe into the nasal cavity or throat for examination. Compared with other human body passages, these parts have a large amount of viscous secretions. When the endoscope is inserted, these secretions are very easy to adhere to the endoscope lens, which can easily lead to blurred vision and misjudgment.

[0005] To this end, the present application proposes a nasopharyngeal carcinoma endoscope, which is used to reduce the risk of the endoscope lens entering the nasopharynx and causing the lens to be contaminated. Summary of the invention

[0006] In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a nasopharyngeal carcinoma endoscope to solve the problem in the prior art that the lens is easily contaminated.

[0007] To achieve the above-mentioned and other related purposes, the present invention provides a nasopharyngeal carcinoma endoscope, comprising: an extension hose, an imaging mechanism, an illumination structure and a traction mechanism;

[0008] The extension hose is at the outermost layer, and is used to cover and protect the imaging mechanism, the lighting structure and the traction mechanism, and to guide the imaging mechanism to a designated position;

[0009] The imaging mechanism is used to capture images of human cavities and transmit the captured images to an external device for viewing by an operator. The imaging mechanism includes a data transmission line, a pressure input part, and a telescopic control part. An optical lens is provided at one end of the data transmission line. The outer surface of the optical lens is covered with a wrapping airbag. The outer surface of the wrapping airbag is fixedly connected to the inner wall of the extension hose. The other end of the data transmission line extends to the outside of the extension hose. A folding part is provided on the outer surface of the data transmission line close to one end of the optical lens. The outer surface of the folding part is covered with a corrugated bag. A pressure-conducting tube is connected to the corrugated bag. The end of the pressure-conducting tube is connected to the pressure input part. The pressure input part is connected to the telescopic control part by signal. The telescopic control part can control the pressure input part to input or extract a medium into the pressure-conducting tube, so that the pressure-conducting tube can be telescopically extended to drive the optical lens to extend out of the end of the extension hose and shrink to the inside of the extension hose.

[0010] The lighting structure is used to illuminate the human body cavity and improve the quality of optical lens image acquisition;

[0011] The traction mechanism is used to pull the end of the extension hose to bend it so that the extension hose can better enter the human body cavity.

[0012] Preferably, a relay connection portion is provided at one end of the extension hose away from the optical lens, a handle connection portion is provided at one end of the extension hose away from the extension hose, and the data transmission line passes through the axes of the relay connection portion and the handle connection portion respectively for connection with an external device;

[0013] The telescopic control part is arranged on the outer surface of the relay connection part.

[0014] Preferably, the radial surface of the relay connection part is respectively provided with a data line through-port, an optical fiber access port and a pressure pipe access port, the data line through-port passes through the relay connection part, the optical fiber access port and the pressure pipe access port are both located on the side of the data line through-port, and the pressure pipe access port is connected to the telescopic control part.

[0015] Preferably, the pressure delivery part includes a pressure delivery lumen tube, which is connected to the pressure guiding tube, a slidable piston is arranged inside the pressure delivery lumen tube, the piston is driven by a motor to realize piston movement, and the telescopic control part is used to control the motor that drives the piston.

[0016] Preferably, the lighting structure includes a lighting lamp, which is embedded in the end of the relay connection part close to one end of the airbag, and is connected to a light transmission optical fiber, which extends from the inside of the extension hose to the inside of the relay connection part, and a light transmission part is provided at the tail of the light transmission optical fiber, which extends to the outside of the relay connection part and is connected to a light source.

[0017] Preferably, the light transmission part includes a splitter box, which is arranged inside the relay connection part, and the inside of the splitter box is respectively provided with a curved mirror, a folding mirror and a flat mirror, all of which are used to reflect the light source. One end of the splitter box is provided with a fiber optic flange coupled to the light transmission fiber, and the splitter box is also provided with a light source connector for connecting the light source.

[0018] Preferably, the traction mechanism includes two fixed blocks and a power control unit, the power control unit is sleeved on the outer surface of the extension hose and is located at one end of the relay connection unit, the fixed blocks are symmetrically distributed inside the relay connection unit, and the fixed blocks are located on both sides of the optical lens, and a traction rope is connected to the same side of the two fixed blocks, and the two traction ropes extend to the inside of the power control unit and are pulled separately to change the angle of the end of the extension hose.

[0019] Preferably, the power control unit includes a connecting tube, which is sleeved on the outer surface of the extension hose, and a drive controller is provided on the outer surface of the connecting tube. A motor box is provided on the inner wall of the connecting tube, and a transmission motor is installed inside the motor box. The transmission motor is electrically connected to the drive controller, and the end of the traction rope extends to the inside of the motor box and is wound around the output shaft of the transmission motor.

[0020] Preferably, support mechanisms are equidistantly arranged inside the extension hose, and the support mechanisms respectively limit the data transmission line, the pressure-conducting tube, the light-transmitting optical fiber and the traction rope.

[0021] Preferably, the support mechanism comprises a support block, the radial surface of the support block is respectively provided with a data line limiting hole, an optical fiber limiting hole, a pressure pipe limiting hole and a traction rope through hole, and a metal sleeve is arranged inside the traction rope through hole;

[0022] The data line limiting hole limits the data transmission line, the optical fiber limiting hole limits the light transmission optical fiber, the pressure pipe limiting hole limits the pressure pipe, the traction rope through hole limits the traction rope, and the traction rope can be pulled and slid inside the metal sleeve.

[0023] As described above, the nasopharyngeal carcinoma endoscope of the present invention has the following beneficial effects:

[0024] 1. The present invention provides a wrapping air bag at the end of the extension hose to cover and protect the optical lens, and provides a folding portion on the outer surface of the data transmission line, and covers the outer surface of the folding portion with a corrugated bag, and uses a pressure-conducting tube to connect the pressure-transmitting portion and the telescopic control portion. When the optical lens is inserted into the human body cavity at the initial stage, the optical lens is protected by the wrapping air bag and will not contact the secretions in the cavity. When it is about to approach the lesion area, the pressure-conducting tube pushes the optical lens to the outside of the extension hose for observation through pressure extension, thereby achieving the effect of reducing the contamination of the optical lens by the secretions.

[0025] 2. The present invention symmetrically arranges fixed blocks inside the extension hose, and arranges a traction rope on the fixed block to be pulled by a power control unit. When the extension hose enters the human body cavity, the direction of the end of the extension hose can be changed by driving the traction force of the traction rope on the fixed block respectively, and the turning can be achieved without the end of the extension hose contacting the inner wall of the cavity, thereby reducing the damage and irritation to the human body cavity.

[0026] 3. The present invention arranges support mechanisms at equal intervals inside the extension hose, so that the extension hose can achieve turning while maintaining its hardness. At the same time, compared with the snake-bone shape, it has a lower cost and lower requirements on the preparation process, thereby achieving the effect of saving preparation costs.

[0027] 4. The present invention limits the data transmission line, the pressure tube and the light transmission optical fiber by respectively arranging data line limiting holes, optical fiber limiting holes and pressure tube limiting holes on the support block, thereby preventing the cables and pipelines from being entangled when the extension hose is frequently bent, and effectively preventing the light transmission optical fiber from being broken. At the same time, a traction rope through hole is arranged on the support block, and a metal sleeve is arranged inside the traction rope through hole to limit the traction rope, so that when the traction rope slides, the support block and the traction rope can be protected by the metal sleeve respectively, thereby achieving the effect of prolonging the service life of the equipment.

[0028] Therefore, the present invention effectively overcomes various shortcomings in the prior art and has high industrial utilization value. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 Shown is a cross-sectional view of the structure of the present invention.

[0030] Figure 2 It is a schematic diagram showing the state of the optical lens of the present invention after extension and wrapping the airbag.

[0031] Figure 3 It is a schematic diagram showing the connection between the corrugated capsule and the data transmission line of the present invention.

[0032] Figure 4 It is a cross-sectional view showing the connection between the corrugated capsule and the data transmission line of the present invention.

[0033] Figure 5 Shown is a schematic structural diagram of the relay connection portion of the present invention.

[0034] Figure 6 Shown is a structural cross-sectional view of the pressure input portion of the present invention.

[0035] Figure 7 Shown is a structural cross-sectional view of the light transmission portion of the present invention.

[0036] Figure 8Shown is a schematic structural diagram of the power control unit of the present invention.

[0037] Fig. 9 Shown is a structural cross-sectional view of the motor box of the present invention.

[0038] Fig.10 Shown is a schematic structural diagram of the support mechanism of the present invention.

[0039] Fig.11 Shown is a structural front view of the support mechanism of the present invention.

[0040] Fig.12 It shows a schematic diagram of the connection between the support mechanism of the present invention and the data transmission line, the pressure-conducting tube, the light-transmitting optical fiber and the traction rope.

[0041] Component number description:

[0042] 1. Extension hose; 101. Relay connection part; 1011. Data line through-hole; 1012. Optical fiber access port; 1013. Pressure pipe access port; 102. Handle connection part;

[0043] 2. Image capturing mechanism; 201. Data transmission line; 202. Optical lens; 203. Folding part; 204. Bellows; 205. Pressure guiding tube; 206. Pressure delivery part; 2061. Pressure delivery cavity tube; 2062. Piston; 207. Telescopic control part; 208. Wrapping airbag;

[0044] 3. Illumination structure; 301. Illumination lamp; 302. Light transmission optical fiber; 303. Light transmission unit; 3031. Splitting box; 3032. Curved mirror; 3033. Refraction mirror; 3034. Flat mirror; 3035. Optical fiber flange; 3036. Light source connector;

[0045] 4. Traction mechanism; 401. Fixing block; 402. Traction rope; 403. Power control unit; 4031. Connecting tube; 4032. Drive controller; 4033. Motor box; 4034. Transmission motor;

[0046] 5. Support mechanism; 501. Support block; 502. Data line limiting hole; 503. Optical fiber limiting hole; 504. Pressure pipe limiting hole; 505. Traction rope through hole; 506. Metal sleeve. DETAILED DESCRIPTION

[0047] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0048] See also Figures 1 to 12. It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0049] like Figure 1-Figure 4 As shown, the present invention provides a nasopharyngeal carcinoma endoscope, comprising: an extension hose 1, an imaging mechanism 2, an illumination structure 3 and a traction mechanism 4. The extension hose 1 is in the outermost layer, and is used to cover and protect the imaging mechanism 2, the illumination structure 3 and the traction mechanism 4, and guide the imaging mechanism 2 to a specified position. The extension hose 1 is made of a soft material, and can be bent in a human body cavity without causing damage to the human body cavity.

[0050] The imaging mechanism 2 is used to collect images of the human body cavity and transmit the collected images to an external device for the operator to watch, so that the doctor can intuitively observe the patient's pathological condition. Specifically, the imaging mechanism 2 includes a data transmission line 201, a pressure input unit 206 and a telescopic control unit 207. The data transmission line 201 is used to transmit data and power, the pressure input unit 206 is used to drive the telescopic end of the data transmission line 201, and the telescopic control unit 207 is used to control the working mode of the pressure input unit 206. An optical lens 202 is provided at one end of the data transmission line 201, and the optical lens 202 is used to collect images of the situation in the human body cavity, so as to facilitate the doctor to observe the situation in the human body cavity. The outer surface of the optical lens 202 is covered with a wrapping airbag 208, and the outer surface of the wrapping airbag 208 is fixedly connected to the inner wall of the extension hose 1. The provided wrapping airbag 208 is used to cover and protect the optical lens 202 when the optical lens 202 is retracted to the inside of the extension hose 1, so as to prevent the optical lens 202 from being contaminated by the secretions in the cavity. When the optical lens 202 needs to be used, the optical lens 202 is pushed by the data transmission line 201 to squeeze the wrapped airbag 208, so that the center of the wrapped airbag 208 is turned outward, and the optical lens 202 extends from the inside of the wrapped airbag 208 for observation. At this time, the periphery of the optical lens 202 is still supported by the wrapped airbag 208, which can isolate the wrapped airbag 208 from the inner wall of the cavity, effectively preventing the optical lens 202 from being contaminated. The other end of the data transmission line 201 extends to the outside of the extension hose 1, and a folding portion 203 is provided on the outer surface of the data transmission line 201 near one end of the optical lens 202. The folding portion 203 is provided to make this section of the data transmission line 201 retractable, and the cable inside the folding portion 203 is reserved for extending with the extension of the folding portion 203. The outer surface of the folding portion 203 is covered with a bellows 204, and a pressure-conducting tube 205 is connected to the bellows 204, and the end of the pressure-conducting tube 205 is connected to the pressure-inputting portion 206. When the pressure-inputting portion 206 delivers pressure to the inside of the pressure-conducting tube 205, the inside of the bellows 204 will expand due to the pressure, thereby extending along the axial direction of the bellows 204, thereby pushing the folding portion 203 to partially extend, thereby realizing the extension and retraction of the optical lens 202. The pressure-inputting portion 206 is connected to the extension and retraction control portion 207 by signal, and the extension and retraction control portion 207 can control the pressure-inputting portion 206 to input or extract a medium into the pressure-conducting tube 205, so that the pressure-conducting tube 205 can be extended and retracted to drive the optical lens 202 to extend out of the end of the extension hose 1 and retract to the inside of the extension hose 1. The medium mentioned above is gas, liquid, etc.

[0051] The lighting structure 3 is used to illuminate the human body cavity, so as to avoid the low image quality of the optical lens 202 in a dark environment, which may lead to the inability to accurately judge the conditions in the cavity, and improve the quality of image acquisition by the optical lens 202.

[0052] The traction mechanism 4 is used to pull the end of the extension hose 1 to bend so that the extension hose 1 can better enter the human body cavity to avoid turning due to the pressure generated by the contact between the end of the catheter and the inner wall of the cavity like a traditional endoscope.

[0053] like Figure 1 As shown, in some embodiments, a relay connection part 101 is provided at one end of the extension hose 1 of the present invention away from the optical lens 202, and a handle connection part 102 is provided at one end of the relay connection part 101 away from the extension hose 1. Among them, the relay connection part 101 and the handle connection part 102 are both made of hard materials. A cavity is provided inside the relay connection part 101, and an interface is provided at the end of the handle connection part 102. The data transmission line 201 passes through the axis of the relay connection part 101 and the handle connection part 102 respectively and extends to the interface for connection with an external device. The telescopic control part 207 is provided on the outer surface of the relay connection part 101, and is used to control the pressure input part 206.

[0054] like Figure 5 As shown, in some embodiments, the radial surface of the relay connection part 101 of the present invention is respectively provided with a data line through-hole 1011, an optical fiber access port 1012 and a pressure pipe access port 1013. The data line through-hole 1011 penetrates the relay connection part 101, so that the data transmission line 201 can extend to the inside of the handle connection part 102 to connect with the interface. The optical fiber access port 1012 and the pressure pipe access port 1013 are both located on the side of the data line through-hole 1011. And the pressure pipe access port 1013 is connected with the telescopic control part 207, so that the pressure pipe 205 can be connected with the pressure input part 206 controlled by the telescopic control part 207. When the pressure input part 206 works, the medium inside the pressure input part 206 can act on the corrugated bag 204 through the pressure pipe 205.

[0055] like Figure 6 As shown, in some embodiments, the pressure delivery part 206 of the present invention includes a pressure delivery lumen 2061, and the interior of the pressure delivery lumen 2061 is used to store the medium. The pressure delivery lumen 2061 is connected to the pressure guiding tube 205, and the medium can enter the interior of the bellows 204 through the pressure guiding tube 205 under the action of pressure to apply pressure to the bellows 204. A slidable piston 2062 is arranged inside the pressure delivery lumen 2061, and the piston 2062 is driven by a motor to realize piston movement. Among them, the end of the piston 2062 is connected to the motor through a cam and a connecting rod, and the rotating cam can drive the piston 2062 to slide. In order to improve the accuracy of the motor movement, the motor is controlled by a PLC. The telescopic control part 207 is used to control the PLC control board to drive the motor of the piston 2062.

[0056] like Figure 1As shown, in some embodiments, the lighting structure 3 of the present invention includes a lighting lamp 301, which is embedded in the end of the relay connection part 101 near the end of the airbag 208. When the light source is emitted from the end of the lighting lamp 301, it can effectively illuminate the inside of the human body cavity and improve the clarity of the image acquisition of the optical lens 202. The lighting lamp 301 is connected with a light transmission optical fiber 302. The light transmission optical fiber 302 extends from the inside of the extension hose 1 to the inside of the relay connection part 101. The tail of the light transmission optical fiber 302 is provided with a light transmission part 303, which extends to the outside of the relay connection part 101 and is connected to the light source. When the light transmission part 303 is connected to the light source, the light source splits light inside the light transmission part 303 and transmits it to all the lighting lamps 301 through the light transmission optical fiber 302, thereby realizing the illumination of the lighting lamps 301.

[0057] like Figure 7 As shown, in some embodiments, the light transmission part 303 of the present invention includes a splitter box 3031, and the inner wall of the splitter box 3031 is a smooth reflective surface. The splitter box 3031 is arranged inside the relay connection part 101, and the inside of the splitter box 3031 is respectively provided with a curved mirror 3032, a folding mirror 3033 and a flat mirror 3034 for reflecting the light source. One end of the splitter box 3031 is provided with a fiber flange 3035 coupled to the light transmission fiber 302. The splitter box 3031 is also provided with a light source connector 3036 for connecting the light source. After the light source is connected to the light source connector 3036, the light source enters the interior of the light splitting box 3031 through the light source connector 3036, and is filled in the interior of the light splitting box 3031 after multiple reflections from the inner wall of the light splitting box 3031 and the curved mirror 3032, the folding mirror 3033, and the flat mirror 3034, and then is transmitted to all the illuminators 301 through the optical fiber flange 3035 and the light transmission optical fiber 302, so as to achieve the lighting effect. When the light source is emitted from the illuminator 301, it will diffuse outwards due to the curved surface at the end of the illuminator 301, so as to increase the lighting range. The superposition of the light sources of multiple illuminators 301 can reduce the generation of shadows and avoid visual errors.

[0058] like Figure 1As shown, in some embodiments, the traction mechanism 4 of the present invention includes two fixed blocks 401 and a power control unit 403. The power control unit 403 is sleeved on the outer surface of the extension hose 1 and is located at one end of the relay connection unit 101. The fixed blocks 401 are symmetrically distributed inside the relay connection unit 101, and the fixed blocks 401 are located on both sides of the optical lens 202. The same side of the two fixed blocks 401 is connected with a traction rope 402, and the two traction ropes 402 extend to the inside of the power control unit 403 and are pulled to change the angle of the end of the extension hose 1. When the power control unit 403 applies traction forces of different strengths to the two traction ropes 402, the end of the extension hose 1 will bend in the direction of the large traction force, thereby achieving the effect of autonomously guiding the extension direction of the extension hose 1. Avoid or reduce the stimulation of the end of the extension hose 1 to the human cavity. Improve the comfort of patients, especially cancer patients whose lesions are particularly sensitive. When the lesions are touched, the patient may shake violently and cause risks.

[0059] like Figure 8 and Fig. 9 As shown, in some embodiments, the power control unit 403 of the present invention includes a connecting tube 4031, and the connecting tube 4031 is sleeved on the outer surface of the extension hose 1. The outer surface of the connecting tube 4031 is provided with a driving controller 4032, and the interior of the driving controller 4032 is provided with a lithium battery for power supply. The inner wall of the connecting tube 4031 is provided with a motor box 4033, and the motor box 4033 extends to the interior of the extension hose 1. A transmission motor 4034 is installed inside the motor box 4033, and the transmission motor 4034 is electrically connected to the driving controller 4032, and the output shaft of the transmission motor 4034 can be controlled by the driving controller 4032 to rotate forward and reverse. The end of the traction rope 402 extends to the interior of the motor box 4033 and is wound around the output shaft of the transmission motor 4034. When the output shaft of the transmission motor 4034 rotates, the traction rope 402 will be tightened or loosened, thereby controlling the end of the extension hose 1 to bend in the corresponding direction. When the control accuracy needs to be improved, the number of fixed blocks 401 and traction ropes 402 can be increased accordingly, and the number of transmission motors 4034 can be increased accordingly.

[0060] like Figure 1 As shown, in some embodiments, the extension hose 1 of the present invention is provided with support mechanisms 5 at equal intervals inside, and the support mechanisms 5 respectively limit the data transmission line 201, the pressure pipe 205, the light transmission optical fiber 302 and the traction rope 402. Among them, the support mechanism 5 is also used to support the extension hose 1, so that the extension hose 1 can be bent while maintaining a certain toughness. The preparation process of the support mechanism 5 is lower than that of the snake-bone connector, and its preparation cost is also correspondingly lower.

[0061] like Figure 10-12As shown, in some embodiments, the support mechanism 5 of the present invention includes a support block 501, and the cross section of the support block 501 is the same as the internal cross section of the extension hose 1. The radial surface of the support block 501 is respectively provided with a data line limiting hole 502, an optical fiber limiting hole 503, a pressure pipe limiting hole 504 and a traction rope through hole 505, and a metal sleeve 506 is arranged inside the traction rope through hole 505. The data line limiting hole 502 limits the data transmission line 201, the optical fiber limiting hole 503 limits the light transmission optical fiber 302, the pressure pipe limiting hole 504 limits the pressure pipe 205, and the traction rope through hole 505 limits the traction rope 402. In this way, it is ensured that the data transmission line 201, the pressure pipe 205 and the traction rope 402 maintain equal spacing when the extension hose 1 is twisted, and the data transmission line 201, the pressure pipe 205 and the traction rope 402 are prevented from being entangled and causing damage to the line and the pipe. Furthermore, the traction rope 402 can be pulled and slid inside the metal sleeve 506 . The provided metal sleeve 506 can effectively prevent the traction rope 402 from rubbing against the inner wall of the traction rope through hole 505 and thus preventing the support block 501 from being damaged.

[0062] The specific use process of the present invention is as follows:

[0063] Connect the handle connection part 102 to the hand-held part, and connect the light transmission part 303 to the light source;

[0064] Insert the end of the extension hose 1 into the patient's cavity through the patient's nose, pharynx, etc.;

[0065] When the end of the extension hose 1 reaches the vicinity of the lesion, the bellows 204 is driven to extend by the telescopic control unit 207, thereby driving the optical lens 202 to pass through the protection of the wrapped airbag 208 to collect images;

[0066] Alternatively, when the end of the extension hose 1 initially enters the patient's cavity, the optical lens 202 is extended out, and the contact between the wrapping airbag 208 and the inner wall of the cavity is used to isolate the optical lens 202 from the secretion, thereby reducing the degree of contamination of the optical lens 202;

[0067] When the extension hose 1 enters the patient's cavity and needs to turn, the power control unit 403 pulls the traction rope 402 to change the force on the end of the extension hose 1 and bend it, so as to achieve the turn and reduce the stimulation of the end of the extension hose 1 on the patient's cavity;

[0068] After the inspection or operation is completed, the optical lens 202 is retracted into the wrapping airbag 208 for protection, and then the extension hose 1 is slowly withdrawn.

[0069] In summary, the nasopharyngeal carcinoma endoscope of the present invention provides a wrapping airbag 208 at the end of the extension hose 1 to cover and protect the optical lens 202, and provides a folding portion 203 on the outer surface of the data transmission line 201, and covers the outer surface of the folding portion 203 with a corrugated bag 204, and uses a pressure pipe 205 to connect with the pressure input portion 206 and the telescopic control portion 207. When inserted into the human body cavity in the early stage, the optical lens 202 is protected by the wrapping airbag 208 and will not come into contact with the secretions in the cavity. When it is about to approach the lesion area, the pressure pipe 205 extends by pressure to push the optical lens 202 to the outside of the extension hose 1 for observation, thereby achieving the effect of reducing the contamination of the optical lens 202 by the secretions.

[0070] By symmetrically arranging a fixed block 401 inside the extension hose 1, and arranging a traction rope 402 on the fixed block 401 to be pulled by the power control unit 403, when the extension hose 1 enters the human body cavity, the direction of the end of the extension hose 1 can be changed by driving the traction force of the traction rope 402 on the fixed block 401 respectively, and there is no need for the end of the extension hose 1 to collide with the inner wall of the cavity to achieve a turn, thereby reducing damage and irritation to the human body cavity.

[0071] By equidistantly arranging the support mechanism 5 inside the extension hose 1, the extension hose 1 can achieve turning while maintaining its hardness. At the same time, compared with the snake-bone shape, it has a lower cost and lower requirements on the preparation process, thereby achieving the effect of saving preparation costs.

[0072] By respectively arranging a data line limiting hole 502, an optical fiber limiting hole 503, and a pressure pipe limiting hole 504 on the support block 501, the data transmission line 201, the pressure pipe 205, and the light transmission optical fiber 302 are limited, so as to avoid the cables and pipelines from being entangled when the extension hose 1 is frequently bent, and at the same time, the light transmission optical fiber 302 can be effectively prevented from being broken. At the same time, a traction rope through hole 505 is arranged on the support block 501, and a metal sleeve 506 is arranged inside the traction rope through hole 505 to limit the traction rope 402, so that when the traction rope 402 slides, the support block 501 and the traction rope 402 can be protected by the metal sleeve 506, thereby achieving the effect of prolonging the service life of the equipment.

[0073] Therefore, the present invention effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

[0074] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A nasopharyngeal carcinoma endoscope, characterized in that: include: An extension hose (1), an imaging mechanism (2), an illumination structure (3) and a traction mechanism (4); The extension hose (1) is located at the outermost layer and is used to cover and protect the imaging mechanism (2), the lighting structure (3) and the traction mechanism (4), and to guide the imaging mechanism (2) to a designated position; The imaging mechanism (2) is used to capture images of human cavities and transmit the captured images to an external device for viewing by an operator. The imaging mechanism (2) comprises a data transmission line (201), a pressure input unit (206) and a telescopic control unit (207). An optical lens (202) is disposed at one end of the data transmission line (201). The outer surface of the optical lens (202) is covered with a wrapping airbag (208). The outer surface of the wrapping airbag (208) is fixedly connected to the inner wall of the extension hose (1). The other end of the data transmission line (201) extends to the outside of the extension hose (1). The data transmission line (201) is close to the optical lens (202). The outer surface of one end of the optical lens (202) is provided with a folding portion (203), the outer surface of the folding portion (203) is covered with a corrugated bag (204), a pressure-conducting tube (205) is connected to the corrugated bag (204), the end of the pressure-conducting tube (205) is connected to a pressure-inputting portion (206), the pressure-inputting portion (206) is connected to a telescopic control portion (207) by signal, and the telescopic control portion (207) can control the pressure-inputting portion (206) to input or extract a medium into the pressure-conducting tube (205), so that the pressure-conducting tube (205) can be telescopically driven to drive the optical lens (202) to extend out of the end of the extension hose (1) and to retract into the interior of the extension hose (1); The lighting structure (3) is used to illuminate the human body cavity and improve the quality of image acquisition by the optical lens (202); The traction mechanism (4) is used to pull the end of the extension hose (1) to bend it, so that the extension hose (1) can better enter the human body cavity.

2. The nasopharyngeal carcinoma endoscope according to claim 1, characterized in that: The end of the extension hose (1) away from the optical lens (202) is provided with a relay connection part (101), and the end of the relay connection part (101) away from the extension hose (1) is provided with a handle connection part (102), and the data transmission line (201) passes through the axis of the relay connection part (101) and the handle connection part (102) respectively for connection with an external device; The telescopic control part (207) is arranged on the outer surface of the relay connection part (101).

3. The nasopharyngeal carcinoma endoscope according to claim 2, characterized in that: The radial surface of the relay connection part (101) is respectively provided with a data line through-port (1011), an optical fiber access port (1012) and a pressure-conducting tube access port (1013); the data line through-port (1011) passes through the relay connection part (101); the optical fiber access port (1012) and the pressure-conducting tube access port (1013) are both located on the side of the data line through-port (1011); and the pressure-conducting tube access port (1013) is connected to the telescopic control part (207).

4. The nasopharyngeal carcinoma endoscope according to claim 2, characterized in that: The pressure delivery part (206) comprises a pressure delivery lumen (2061), wherein the pressure delivery lumen (2061) is connected to the pressure guiding tube (205), a slidable piston (2062) is arranged inside the pressure delivery lumen (2061), and the piston (2062) is driven by a motor to realize piston movement, and the telescopic control part (207) is used to control the motor driving the piston (2062).

5. The nasopharyngeal carcinoma endoscope according to claim 2, characterized in that: The lighting structure (3) comprises a lighting lamp (301), the lighting lamp (301) being embedded in an end portion of the relay connection portion (101) close to one end of the airbag (208), the lighting lamp (301) being connected to a light transmission optical fiber (302), the light transmission optical fiber (302) extending from the interior of the extension hose (1) to the interior of the relay connection portion (101), a light transmission portion (303) being provided at the tail of the light transmission optical fiber (302), the light transmission portion (303) extending to the exterior of the relay connection portion (101) to be connected to a light source.

6. The nasopharyngeal carcinoma endoscope according to claim 5, characterized in that: The light transmission part (303) comprises a light splitting box (3031), which is arranged inside the relay connection part (101). The light splitting box (3031) is provided with a curved mirror (3032), a folding mirror (3033) and a flat mirror (3034) inside, all of which are used to reflect the light source. One end of the light splitting box (3031) is provided with a fiber flange (3035) coupled to the light transmission fiber (302). The light splitting box (3031) is also provided with a light source connector (3036) for connecting the light source.

7. The nasopharyngeal carcinoma endoscope according to claim 5, characterized in that: The traction mechanism (4) comprises two fixing blocks (401) and a power control unit (403); the power control unit (403) is sleeved on the outer surface of the extension hose (1) and is located at one end of the relay connection unit (101); the fixing blocks (401) are symmetrically distributed inside the relay connection unit (101), and the fixing blocks (401) are located on both sides of the optical lens (202); the same side of the two fixing blocks (401) is connected to a traction rope (402); the two traction ropes (402) extend to the inside of the power control unit (403) and are pulled respectively to change the angle of the end of the extension hose (1).

8. The nasopharyngeal carcinoma endoscope according to claim 7, characterized in that: The power control unit (403) comprises a connecting tube (4031), the connecting tube (4031) is sleeved on the outer surface of the extension hose (1), a driving controller (4032) is arranged on the outer surface of the connecting tube (4031), a motor box (4033) is arranged on the inner wall of the connecting tube (4031), a transmission motor (4034) is installed inside the motor box (4033), and the transmission motor (4034) is electrically connected to the driving controller (4032), and the end of the traction rope (402) extends to the inside of the motor box (4033) and is wound around the output shaft of the transmission motor (4034).

9. The nasopharyngeal carcinoma endoscope according to claim 8, characterized in that: Support mechanisms (5) are equidistantly arranged inside the extension hose (1), and the support mechanisms (5) respectively limit the data transmission line (201), the pressure-conducting tube (205), the light-transmitting optical fiber (302) and the traction rope (402).

10. The nasopharyngeal carcinoma endoscope according to claim 9, characterized in that: The support mechanism (5) comprises a support block (501), the radial surface of the support block (501) is respectively provided with a data line limiting hole (502), an optical fiber limiting hole (503), a pressure pipe limiting hole (504) and a traction rope through hole (505), and a metal sleeve (506) is arranged inside the traction rope through hole (505); The data line limiting hole (502) limits the data transmission line (201), the optical fiber limiting hole (503) limits the light transmission optical fiber (302), the pressure pipe limiting hole (504) limits the pressure pipe (205), the traction rope through hole (505) limits the traction rope (402), and the traction rope (402) can be pulled and slid inside the metal sleeve (506).

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