Universal head anti-fog neuroendoscopic device

Abstract

The present invention relates to the technical field of neurosurgery medical equipment, and more specifically, to a universal head anti-fog neuroendoscopic device, comprising a hand-held mechanism and an insertion mechanism arranged at the end of the hand-held mechanism, wherein the insertion mechanism comprises an outer sleeve, an adjustment portion sleeved inside the outer sleeve, and an observation head arranged at the end of the adjustment portion. The universal head anti-fog neuroendoscopic device can drive the fixed angle of the camera end in the observation head to change through a transmission group by twisting a dial in the adjustment portion, thereby increasing the observation angle of the rigid endoscope in the patient's body. At the same time, the design of the outer sleeve and the inner cannula allows medical personnel to rotate the adjustment portion as a whole without causing damage to the tissue in the patient's body due to the fixed outer sleeve.

Description

Technical Field

[0001] The invention relates to the technical field of neurosurgery medical equipment, in particular to a universal head anti-fogging neuroendoscopic device. Background Art

[0002] Neuroendoscopes are key tools in neurosurgery and are mainly divided into rigid endoscopes and flexible endoscopes. Rigid endoscopes are known for their high clarity and stability and are suitable for scenarios that require precise observation and operation. During surgery, doctors usually prefer rigid endoscopes because they can provide a stable field of view and clear images, which helps to accurately judge the condition of the lesions and perform precise operations. Although flexible endoscopes are more flexible, they are still a better choice in some complex operations that require high clarity and stability.

[0003] The patent with application number CN202320625910.3 discloses a neuroendoscopic assembly, including a neuroendoscopic assembly body, a mounting block fixedly connected to the bottom of the inner cavity of the neuroendoscopic assembly body, a protective baffle is arranged on the left side of the mounting block, a limiting block is fixedly connected to the top of the inner cavity of the neuroendoscopic assembly body, a positioning block is fixedly connected to the bottom of the inner cavity of the limiting block, a spring is fixedly connected to the top of the inner cavity of the limiting block, and a push plate is fixedly connected to the other end of the spring. Through the coordinated use of the neuroendoscopic assembly body, the mounting block, the protective baffle, the limiting block, the positioning block, the spring, the push plate and the fixed block, the optical fiber camera can be protected during use, and the maintenance of the optical fiber camera is convenient, thereby improving practicality.

[0004] However, the application of traditional rigid endoscopes in narrow windows has many limitations, including limited field of view, single observation angle, and limited insertion depth, which greatly restricts its effectiveness in complex medical operations. What is more troublesome is that as the insertion depth increases, the endoscope is easily contaminated by blood stasis, affecting the image clarity. In addition, due to the temperature difference between the metal material and the human body, fog is easily generated on the surface of the endoscope, further blurring the vision. During the operation, the doctor needs to repeatedly take the endoscope in and out to clear the fog or adjust the position, which not only increases the difficulty of operation, but also increases the potential risk of damage to surrounding tissues.

[0005] In view of this, we propose a universal head anti-fog neuroendoscopy device. Summary of the invention

[0006] The object of the present invention is to provide a universal head anti-fog neuroendoscopic device to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A universal head anti-fog neuroendoscopic device, comprising a hand-held mechanism and an insertion mechanism arranged at the end of the hand-held mechanism, wherein the insertion mechanism comprises an outer jacket, an adjustment portion sleeved inside the outer jacket, and an observation head arranged at the end of the adjustment portion;

[0009] The outer sleeve portion includes a butt joint pipe and an outer sleeve arranged at the front end of the butt joint pipe;

[0010] The adjustment part includes an inner insert tube, a transmission group arranged inside the inner insert tube, a dial for driving the internal structure of the transmission group to rotate, and two water inlet pipes and a water extraction pipe arranged in parallel on the rear end wall of the inner insert tube;

[0011] The transmission group includes a rotating shaft that rotates with the rotation of the dial, a transmission rod that rotates together with the rotating shaft, and a synchronous belt arranged at the left and right ends of the transmission rod;

[0012] The observation head comprises a fixed cover body, a rotating part arranged inside the fixed cover body, a squeezing part whose internal structure moves as the rotating part moves, and a water-absorbing sponge arranged inside the fixed cover body;

[0013] The rotating part includes a placement shaft that rotates synchronously with the transmission rod, a camera head arranged outside the placement shaft, a rotating ring body arranged outside the placement shaft, and an annular wall gears arranged inside grooves at both ends of the annular wall outside the rotating ring body;

[0014] The squeezing part comprises a squeezing slider which moves up and down as the rotating ring body rotates, and a water absorbing hose arranged on the bottom surface of the squeezing slider, and the pipe mouth of the water absorbing hose extends to the other end of the water absorbing sponge.

[0015] In the technical solution of the present invention, the end of the butt tube is clamped and fixed with the front end of the hand-held mechanism, two centrally symmetrical tube wall grooves that penetrate inside and outside are opened on the outer wall of the butt tube, and the outer sleeve is welded and fixed to the butt tube.

[0016] In the technical solution of the present invention, the outer size of the inner insert tube is matched with the inner size of the outer sleeve, and two liquid-passing grooves that pass through the inner tube are opened inside. A plug rod with a cross-shaped longitudinal cross-section is welded on the inner wall of the dial plate. The water inlet pipe and the water suction pipe are respectively glued and fixed to the outer sides of the groove walls of the two liquid-passing grooves, and the outer pipe openings of the water inlet pipe and the water suction pipe are respectively connected to an external circulating water pump.

[0017] In the technical solution of the present invention, the left and right ends of the rotating shaft are rotatably connected to the tube walls of the left and right ends of the inner tube respectively, and a shaft gear is clamped and fixed at the center position of the outer wall of the rotating shaft, and a docking gear is meshed on the front side of the shaft gear.

[0018] In the technical solution of the present invention, the docking gear is fixedly connected to the outer wall of the transmission rod by a bayonet pin, and the left and right ends of the transmission rod are respectively rotatably connected to the tube walls of the left and right ends of the inner tube, and the left and right ends of the transmission rod are sleeved with limit plates for limiting the placement interval of the synchronous belt.

[0019] In the technical solution of the present invention, a cover body through groove which runs through inside and outside and has an arc-shaped longitudinal cross-section is provided on the outer side wall of the fixed cover body, an arc-shaped placement groove symmetrically arranged with the cover body through groove is provided on the inner side wall of the fixed cover body, a limiting slide groove is provided on the top surface of the arc-shaped placement groove, and two connecting grooves connected with the limiting slide groove are provided on the inner side wall of the fixed cover body, and the absorbent sponge is placed inside the arc-shaped placement groove.

[0020] In the technical solution of the present invention, the left and right ends of the placement shaft are rotatably connected to the inner walls of the left and right ends of the fixed cover body respectively, and the outer walls of the left and right ends of the placement shaft are clamped and fixed with shaft end bosses for limiting the placement range of the synchronous belt.

[0021] In the technical solution of the present invention, the camera end is clamped and fixed on the outer wall of the placement shaft, the rotating ring body is rotatably connected to the inside of the fixed cover body and is clamped and fixed with the camera end, and the ring wall gear is welded and fixed on the outer wall of the rotating ring body.

[0022] In the technical solution of the present invention, the extrusion slider is slidably connected to the inside of the limiting slide groove, and block pull grooves are opened on the outer walls at both ends of the extrusion slider. The top surface of the extrusion slider is clamped with an upper convex tube body above the two internal connecting holes.

[0023] In the technical solution of the present invention, the water suction hose is adhered and fixed to the bottom surface of the extrusion slider and is connected to one of the connecting holes of the extrusion slider. The left and right sides of the extrusion slider are provided with toggle disc teeth rotatably connected to the inside of the limiting slide groove. The toggle disc teeth are meshed with the annular wall gear. A toggle rod is welded on the inner side wall of the toggle disc teeth, and the end of the toggle rod extends to the inside of the toggle groove of the end block of the extrusion slider.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The universal head anti-fog neuroendoscopic device can change the fixed angle of the camera end in the observation head through the transmission group by twisting the dial in the adjustment part, thereby increasing the observation angle of the rigid endoscope in the patient's body. At the same time, the design of the outer sleeve and the inner tube allows medical personnel to rotate the entire adjustment part without causing damage to the tissues in the patient's body due to the fixed outer sleeve.

[0026] 2. When the lens of the camera end is fogged or the vision is obstructed by blood congestion, the end of the camera end is directly retracted into the arc placement groove, and the lens of the camera end is cleaned and defogged by the internal absorbent sponge, thereby avoiding the situation of repeatedly taking the insertion mechanism in and out.

[0027] 3. In the universal head anti-fog neuroendoscopy device, when the medical staff adjusts the position of the camera end, the toggle disc teeth of the squeezing part will rotate, driving the squeezing slider to move up and down, thereby squeezing the absorbent sponge, thereby cooperating with the absorbent hose to clean and dilute the blood clots on the absorbent sponge. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0029] Figure 2 It is a structural schematic diagram of the insertion mechanism in the present invention.

[0030] Figure 3 It is a schematic structural diagram of the outer sleeve in the present invention.

[0031] Figure 4 It is a schematic cross-sectional view of the structure of the adjustment part in the present invention.

[0032] Figure 5 It is a partial structural cutaway diagram of the adjustment part in the present invention.

[0033] Figure 6 It is a structural schematic diagram of the transmission group in the present invention.

[0034] Figure 7 It is a structural schematic diagram of the observation head in the present invention.

[0035] Figure 8 It is a schematic cross-sectional view of part of the structure of the observation head in the present invention.

[0036] Fig. 9 It is a schematic cross-sectional view of the structure of the fixed cover body in the present invention.

[0037] Fig.10 It is a structural schematic diagram of the rotating part in the present invention.

[0038] Fig.11 For the present invention Fig.10 Enlarged schematic diagram of part A.

[0039] Fig.12 It is a schematic diagram of the structure of the extrusion part in the present invention.

[0040] Description of reference numerals:

[0041] 100, hand-held mechanism; 200, insertion mechanism; 210, outer sleeve; 211, butt joint; 2110, tube wall slide; 212, outer sleeve; 220, adjustment portion; 221, inner tube; 2210, liquid passage; 222, transmission group; 2220, rotating shaft; 2221, shaft gear; 2222, butt joint gear; 2223, transmission rod; 2224, limit plate; 2225, synchronous belt; 223, toggle plate; 224, water inlet pipe; 225, water extraction pipe; 230, observation head ; 231, fixed cover body; 2310, cover body through groove; 2311, arc placement groove; 2312, limiting slide groove; 2313, connecting groove; 232, rotating part; 2320, placement shaft; 2321, shaft end convex disk; 2322, camera end; 2323, rotating ring body; 2324, ring wall gear; 233, extrusion part; 2330, extrusion slider; 2331, upper convex tube body; 2332, water absorption hose; 2334, toggle disc teeth; 2335, toggle rod; 234, water absorption sponge. DETAILED DESCRIPTION

[0042] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in 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.

[0043] See also Figure 1-Figure 12 As shown, this embodiment provides a technical solution:

[0044] A universal head anti-fog neuroendoscopic device comprises a hand-held mechanism 100 and an insertion mechanism 200 arranged at the end of the hand-held mechanism 100, wherein the insertion mechanism 200 comprises an outer jacket 210, an adjustment portion 220 sleeved inside the outer jacket 210, and an observation head 230 arranged at the end of the adjustment portion 220;

[0045] In the present invention, the outer sleeve 210 includes a butt joint tube 211 and an outer sleeve 212 disposed at the front end of the butt joint tube 211;

[0046] Specifically, the end of the butt joint tube 211 is fixedly engaged with the front end of the hand-held mechanism 100 , two centrally symmetrical tube wall grooves 2110 that penetrate inside and outside are opened on the outer wall of the butt joint tube 211 , and the outer sleeve 212 is fixedly welded to the butt joint tube 211 .

[0047] Furthermore, the butt joint tube 211 is used to ensure the strength of the overall structure of the outer sleeve 210, the tube wall groove 2110 is used to limit the range in which the adjustment part 220 can rotate as a whole, and the outer sleeve 212 is used to ensure that when the adjustment part 220 rotates as a whole, the outer sleeve 212 in contact with the patient's tissue will not rotate.

[0048] In this embodiment, Figure 4-Figure 5 As shown, the adjustment part 220 includes an inner tube 221, a transmission group 222 disposed inside the inner tube 221, a dial 223 for driving the internal structure of the transmission group 222 to rotate, and two water inlet pipes 224 and water extraction pipes 225 disposed in parallel on the rear end wall of the inner tube 221;

[0049] Specifically, the outer dimensions of the inner insert tube 221 are matched with the inner dimensions of the outer sleeve 212, and two liquid-passing grooves 2210 are opened inside the inner insert tube 221, and a plug rod with a cross-shaped longitudinal cross-section is welded on the inner wall of the dial plate 223. The water inlet pipe 224 and the water suction pipe 225 are respectively adhered and fixed to the outer sides of the groove walls of the two liquid-passing grooves 2210, and the outer pipe openings of the water inlet pipe 224 and the water suction pipe 225 are respectively connected to external circulating water pumps.

[0050] Furthermore, the inner tube 221 is used to ensure the strength of the overall structure of the adjustment part 220, and the dial 223 is used to drive the internal structure of the transmission group 222 to rotate, while also being able to twist the position of the inner tube 221 as a whole inside the outer sleeve 210, and connect the two ends of the external circulating water pump to the other end of the water inlet pipe 224 and the water pumping pipe 225 respectively, and after the circulating water is heated to the average temperature of the human body, it is sent into the interior of the water inlet pipe 224, and suction is generated inside the water pumping pipe 225.

[0051] In this embodiment, Figure 6 As shown, the transmission group 222 includes a rotating shaft 2220 that rotates with the rotation of the dial 223, a transmission rod 2223 that rotates together with the rotating shaft 2220, and a synchronous belt 2225 disposed at the left and right ends of the transmission rod 2223;

[0052] Specifically, the left and right ends of the rotating shaft 2220 are rotatably connected to the tube walls of the left and right ends of the inner tube 221 respectively, and a shaft gear 2221 is clamped and fixed at the center position of the outer wall of the rotating shaft 2220, and a docking gear 2222 is meshed on the front side of the shaft gear 2221.

[0053] Furthermore, the docking gear 2222 is fixedly connected to the outer wall of the transmission rod 2223 by a bayonet pin, and the left and right ends of the transmission rod 2223 are respectively rotatably connected to the tube walls of the left and right ends of the inner tube 221, and the left and right ends of the transmission rod 2223 are sleeved with limit plates 2224 for limiting the placement interval of the synchronous belt 2225.

[0054] Furthermore, twisting the dial 223 drives the rotating shaft 2220 to rotate. After the rotating shaft 2220 rotates, the shaft gear 2221 rotates together with the rotating shaft 2220 and contacts the docking gear 2222, driving it and the transmission rod 2223 to rotate together.

[0055] In this embodiment, Figure 7-Figure 12 As shown, the observation head 230 includes a fixed cover body 231, a rotating part 232 disposed inside the fixed cover body 231, a squeezing part 233 whose internal structure moves as the rotating part 232 moves, and a water-absorbing sponge 234 disposed inside the fixed cover body 231;

[0056] Specifically, a cover body through groove 2310 which penetrates inside and outside and has an arc-shaped longitudinal cross-section is opened on the outer wall of the fixed cover body 231, an arc-shaped placement groove 2311 which is symmetrically arranged with the cover body through groove 2310 is opened on the inner wall of the fixed cover body 231, a limiting slide groove 2312 is opened on the top surface of the arc-shaped placement groove 2311, two connecting grooves 2313 connected with the limiting slide groove 2312 are opened on the inner wall of the fixed cover body 231, and the water-absorbing sponge 234 is placed inside the arc-shaped placement groove 2311.

[0057] Furthermore, the cover body through groove 2310 is used to provide an angle range within which the internal structure of the rotating part 232 can be observed, the arc placement groove 2311 is used to provide a placement area for the water-absorbing sponge 234, and the limiting slide groove 2312 and the connecting groove 2313 are used to provide a placement area for the internal structure of the extrusion part 233.

[0058] In this embodiment, Figure 10-11 As shown, the rotating part 232 includes a placement shaft 2320 that rotates synchronously with the transmission rod 2223, a camera head 2322 disposed outside the placement shaft 2320, a rotating ring body 2323 disposed outside the placement shaft 2320, and a ring wall gear 2324 disposed inside the grooves at both ends of the outer ring wall of the rotating ring body 2323;

[0059] Specifically, the left and right ends of the placement shaft 2320 are rotatably connected to the inner walls of the left and right ends of the fixed cover body 231, and the outer walls of the left and right ends of the placement shaft 2320 are clamped and fixed with shaft end bosses 2321 for limiting the placement range of the synchronous belt 2225.

[0060] Furthermore, the camera end 2322 is clamped and fixed on the outer wall of the placement shaft 2320, the rotating ring body 2323 is rotatably connected to the inside of the fixed cover body 231 and is clamped and fixed to the camera end 2322, and the ring wall gear 2324 is welded and fixed on the outer wall of the rotating ring body 2323.

[0061] Furthermore, the synchronous belt 2225 transmits the power of the transmission rod 2223 to the outer side of the shaft end flange 2321 in the rotating part 232, thereby driving the shaft end flange 2321 and the placement shaft 2320 to rotate, thereby adjusting the fixed angle of the camera end 2322, and also driving the rotating ring body 2323 to rotate at the same time.

[0062] In this embodiment, Fig.12 As shown, the squeezing portion 233 includes a squeezing slider 2330 that moves up and down as the rotating ring body 2323 rotates, and a water absorbing hose 2332 disposed on the bottom surface of the squeezing slider 2330, and the pipe mouth of the water absorbing hose 2332 extends to the other end of the water absorbing sponge 234;

[0063] Specifically, the extrusion slider 2330 is slidably connected to the inside of the limiting slide groove 2312, and block pull grooves are opened on the outer walls at both ends of the extrusion slider 2330. The top surface of the extrusion slider 2330 is clamped with an upper convex tube body 2331 above the two internal connecting holes.

[0064] Furthermore, the water suction hose 2332 is adhered and fixed to the bottom surface of the extrusion slider 2330, and is connected to one of the connecting holes of the extrusion slider 2330. The left and right sides of the extrusion slider 2330 are provided with a toggle plate tooth 2334 rotatably connected to the inside of the limiting slide groove 2312. The toggle plate tooth 2334 is meshed with the annular wall gear 2324. A toggle rod 2335 is welded on the inner wall of the toggle plate tooth 2334. The end of the toggle rod 2335 extends to the inside of the toggle groove of the end block of the extrusion slider 2330.

[0065] Furthermore, as the rotating ring body 2323 rotates together with the camera end 2322, the annular wall gear 2324 in the outer annular wall groove thereof will contact the toggle disc teeth 2334 in the extrusion portion 233, thereby driving the toggle disc teeth 2334 and the toggle rod 2335 to rotate, and the contact position of the toggle rod 2335 and the wall of the slide groove of the end block of the extrusion slider 2330 is constantly changing, thereby driving the extrusion slider 2330 to move up and down as a whole, and intermittently squeezing the water-absorbing sponge 234, so that the blood congestion on the surface of the water-absorbing sponge 234 is continuously diluted by the squeezed water and discharged to the inside of the water-absorbing sponge 234 by the water absorption hose 2332, and the upper convex tube body 2331 is used to slide and connect to the inside of the liquid passage groove 2210, and cooperate with the water absorption hose 2332 to ensure the circulation of water in the arc placement groove 2311.

[0066] When the universal head anti-fog neuroendoscopic device of the present invention is used, first, the outer sleeve portion 210 extending into the mechanism 200 is fixed to the front end of the handheld mechanism 100;

[0067] Next, the two ends of the external circulating water pump are connected to the pipe openings of the water inlet pipe 224 and the water extraction pipe 225, respectively, and the circulating water is heated to the average temperature of the human body;

[0068] Then, the end of the insertion mechanism 200 is inserted into the patient's body, and according to the specific conditions inside the patient, the dial 223 is twisted to drive the rotating shaft 2220 to rotate;

[0069] After the rotating shaft 2220 rotates, the shaft gear 2221 rotates together with the rotating shaft 2220, and after contacting with the docking gear 2222, drives it and the transmission rod 2223 to rotate together, and transmits the power of the transmission rod 2223 to the outer side of the shaft end flange 2321 in the rotating part 232 through the synchronous belt 2225 on the limit plate 2224, thereby driving the shaft end flange 2321 and the placement shaft 2320 to rotate, thereby adjusting the fixed angle of the camera end 2322;

[0070] When the end of the camera head 2322 is fogged or blocked to interfere with vision, the dial 223 is twisted to retract the end of the camera head 2322 into the arc-shaped placement groove 2311, and the water-absorbing sponge 234 inside cleans and defogs the lens of the camera head 2322;

[0071] Then, when the lens of the camera end 2322 is cleaned, the dial 223 is twisted again to adjust the fixed angle of the camera end 2322;

[0072] As the rotating ring body 2323 rotates together with the camera head 2322, the ring wall gear 2324 in the outer ring wall groove contacts the shifting disc teeth 2334 in the extrusion part 233, thereby driving the shifting disc teeth 2334 and the shifting rod 2335 to rotate;

[0073] The contact position between the lever 2335 and the end block of the extrusion slider 2330 on the wall of the slide groove is constantly changing, which drives the extrusion slider 2330 to move up and down as a whole, and intermittently squeezes the water-absorbing sponge 234, so that the blood congestion on the surface of the water-absorbing sponge 234 is continuously diluted by the squeezed water and discharged from the water-absorbing hose 2332 to the inside of the water-absorbing sponge 234;

[0074] When the subsequent operation is finished, the front end of the insertion mechanism 200 can be directly and slowly withdrawn from the patient's body.

[0075] The foregoing description of specific exemplary embodiments of the present invention is for the purpose of illustration and demonstration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the present invention and various different selections and changes. The scope of the present invention is intended to be limited by the specification and its equivalents.

Claims

1. A universal head anti-fog neuroendoscopic device, comprising a hand-held mechanism (100) and an insertion mechanism (200) arranged at the end of the hand-held mechanism (100), characterized in that: The insertion mechanism (200) comprises an outer sleeve (210), an adjustment portion (220) sleeved inside the outer sleeve (210), and an observation head (230) arranged at an end position of the adjustment portion (220); The outer sleeve (210) comprises a butt-joint pipe (211) and an outer sleeve (212) arranged at the front end of the butt-joint pipe (211); The adjustment portion (220) comprises an inner insert tube (221), a transmission group (222) disposed inside the inner insert tube (221), a dial (223) used to drive the internal structure of the transmission group (222) to rotate, and two water inlet pipes (224) and a water extraction pipe (225) disposed in parallel on the rear end wall of the inner insert tube (221); The transmission group (222) comprises a rotating shaft (2220) that rotates as the dial (223) rotates, a transmission rod (2223) that rotates together with the rotating shaft (2220), and a synchronous belt (2225) disposed at the left and right ends of the transmission rod (2223); The observation head (230) comprises a fixed cover body (231), a rotating part (232) arranged inside the fixed cover body (231), a squeezing part (233) whose internal structure moves as the rotating part (232) moves, and a water-absorbing sponge (234) arranged inside the fixed cover body (231); The rotating part (232) comprises a placement shaft (2320) that rotates synchronously with the transmission rod (2223), a camera head (2322) arranged outside the placement shaft (2320), a rotating ring body (2323) arranged outside the placement shaft (2320), and an annular wall gears (2324) arranged inside grooves at both ends of an annular wall outside the rotating ring body (2323); The extrusion portion (233) comprises an extrusion slider (2330) that moves up and down as the rotating ring body (2323) rotates, and a water absorption hose (2332) disposed on the bottom surface of the extrusion slider (2330), wherein the mouth of the water absorption hose (2332) extends to the other end of the water absorption sponge (234); The outer side wall of the fixed cover body (231) is provided with a cover body through groove (2310) which is through inside and outside and has an arc-shaped longitudinal cross section; the inner side wall of the fixed cover body (231) is provided with an arc-shaped placement groove (2311) which is symmetrically arranged with the cover body through groove (2310); a limit slide groove (2312) is provided on the top surface of the arc-shaped placement groove (2311); two connecting grooves (2313) which are connected with the limit slide groove (2312) are provided on the inner side wall of the fixed cover body (231); and the water-absorbing sponge (234) is placed inside the arc-shaped placement groove (2311); The extrusion slider (2330) is slidably connected to the inside of the limiting slide groove (2312), and the left and right sides of the extrusion slider (2330) are provided with toggle disc teeth (2334) rotatably connected to the inside of the limiting slide groove (2312), and the toggle disc teeth (2334) are meshed with the annular wall gear (2324).

2. The universal head anti-fog neuroendoscopic device according to claim 1, characterized in that: The end of the butt joint tube (211) is fixedly engaged with the front end of the hand-held mechanism (100), two tube wall sliding grooves (2110) which are centrally symmetrical and penetrate inside and outside are provided on the outer wall of the butt joint tube (211), and the outer sleeve (212) is fixedly welded to the butt joint tube (211).

3. The universal head anti-fog neuroendoscopic device according to claim 1, characterized in that: The outer dimensions of the inner insert tube (221) match the inner dimensions of the outer sleeve (212); two liquid-passing grooves (2210) are provided inside the inner insert tube (221) and are connected front to back; an insert rod having a cross-shaped longitudinal cross section is welded to the inner wall of the dial plate (223); the water inlet pipe (224) and the water extraction pipe (225) are respectively bonded and fixed to the outer sides of the groove walls of the two liquid-passing grooves (2210); and the outer pipe openings of the water inlet pipe (224) and the water extraction pipe (225) are respectively connected to an external circulating water pump.

4. The universal head anti-fog neuroendoscopic device according to claim 1, characterized in that: The left and right ends of the rotating shaft (2220) are respectively rotatably connected to the tube walls of the left and right ends of the inner tube (221); a shaft gear (2221) is clamped and fixed at the center position of the outer wall of the rotating shaft (2220); and a docking gear (2222) is meshed on the front side of the shaft gear (2221).

5. The universal head anti-fog neuroendoscopic device according to claim 4, characterized in that: The docking gear (2222) is fixedly connected to the outer wall of the transmission rod (2223) via a bayonet pin, and the left and right ends of the transmission rod (2223) are rotatably connected to the tube walls of the left and right ends of the inner tube (221), respectively. The left and right ends of the transmission rod (2223) are sleeved with limit plates (2224) for limiting the placement interval of the synchronous belt (2225).

6. The universal head anti-fog neuroendoscopic device according to claim 1, characterized in that: The left and right ends of the placement shaft (2320) are rotatably connected to the inner side walls of the left and right ends of the fixed cover body (231), and the outer side walls of the left and right ends of the placement shaft (2320) are clamped and fixed with shaft end flanges (2321) for limiting the placement range of the synchronous belt (2225).

7. The universal head anti-fog neuroendoscopic device according to claim 1, characterized in that: The camera end (2322) is fixedly engaged with the outer wall of the placement shaft (2320), the rotating ring body (2323) is rotatably connected to the inside of the fixed cover body (231) and is fixedly engaged with the camera end (2322), and the ring wall gear (2324) is weldedly engaged with the outer wall of the rotating ring body (2323).

8. The universal head anti-fog neuroendoscopic device according to claim 1, characterized in that: Block grooves are provided on the outer side walls at both ends of the extrusion slider (2330), and an upper convex tube body (2331) is clamped on the top surface of the extrusion slider (2330) above the two internal communication holes.

9. The universal head anti-fog neuroendoscopic device according to claim 1, characterized in that: The water suction hose (2332) is adhered and fixed to the bottom surface of the extrusion slider (2330) and is connected to one of the connecting holes of the extrusion slider (2330). A lever (2335) is welded on the inner side wall of the shifting disc teeth (2334), and the end of the lever (2335) extends to the inside of the shifting groove of the end block of the extrusion slider (2330).

Images