Oral cavity tissue low-loss type oral endoscope

Abstract

The invention provides an oral cavity tissue low-loss type oral endoscope. The oral cavity tissue low-loss type oral endoscope comprises an endoscope body; a penetrating hole is formed in the middle of the limiting plate, the inserting pipe is movably sleeved with the limiting plate through the penetrating hole, and a latex block arranged outside the inserting pipe in a sleeving mode is fixedly installed on the side, away from the handle, of the limiting plate; the limiting and guiding assembly is installed on the side, away from the handle, of the limiting plate, and the limiting and guiding assembly is used for limiting the cannula and guiding the spring rod sleeve in the extension direction of the lens; and the positioning mechanism is installed on the side, away from the latex block, of the limiting plate and comprises hinge frames symmetrically and fixedly installed on the side, away from the latex block, of the limiting plate, and a positioning plate is hinged to the hinge frames through first hinge shafts. Standby vertical upside-down hanging of the oral endoscope can be achieved, and the handle connector is prevented from being damaged.

Description

Technical Field

[0001] The present invention relates to the technical field of transoral endoscopes, and particularly to a transoral endoscope with low damage to oral tissues. Background Art

[0002] As a core instrument for the diagnosis and treatment of digestive tract diseases, when performing an examination or waiting for the next patient to be examined, a transoral endoscope often needs to be placed midway. When the endoscope is placed on the operating table midway, the handle, connecting catheter, and data cable need to remain connected to maintain the standby state of the device. At this time, the insertion part of the endoscope contacts the tabletop horizontally, and the tabletop may remain disinfectant, body fluid, or environmental pollutants. Direct contact with the surface of the insertion part is likely to cause secondary contamination.

[0003] In the prior art, such as the indexing suspension rack proposed in Patent CN221904029U, multi-angle positioning is achieved through the cooperation of a rotating shaft and an indexing seat, allowing multiple endoscopes to be suspended simultaneously and reducing the occupation of vertical space. However, this solution can achieve vertical suspension and avoid the problem of horizontal placement contaminating the endoscope body, but there are still the following deficiencies:

[0004] The chuck design of the indexing suspension rack makes the endoscope use the handle as the suspension fulcrum, and the insertion part naturally hangs down. When the handle is hung in the working state, the wire and the catheter still form an acute-angle bend at the connection due to the action of gravity, and long-term use is likely to cause the insulation layer of the cable to rupture or the seal of the catheter joint to be damaged.

[0005] Therefore, the present application proposes a transoral endoscope with low damage to oral tissues. Summary of the Invention

[0006] In view of the deficiencies of the prior art, the present invention provides a transoral endoscope with low damage to oral tissues, which solves the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention is realized through the following technical solutions:

[0008] A transoral endoscope with low damage to oral tissues, comprising:

[0009] An endoscope body, which includes an intubation tube, one end of the intubation tube is provided with a lens, and the other end of the intubation tube is fixedly connected to a handle;

[0010] A limiting plate, a perforation is provided at the middle position thereof, the limiting plate is movably sleeved outside the intubation tube through the perforation, and a latex block sleeved outside the intubation tube is fixedly installed on the side of the limiting plate away from the handle;

[0011] A limiting and guiding assembly, which is installed on the side of the limiting plate away from the handle, and the limiting and guiding assembly is used to limit the intubation tube and guide the spring rod sleeve along the extending direction of the lens;

[0012] The positioning mechanism is installed on the side of the limiting plate away from the latex block. The positioning mechanism includes hinge frames symmetrically and fixedly installed on the side of the limiting plate away from the latex block. A positioning plate is hinged to the hinge frame through a first hinge shaft. The free ends of the two positioning plates can both abut against the outer wall of the intubation tube. An adjusting component is installed on the hinge frame for driving the first hinge shaft to rotate or stop rotating. A constraint component is connected to the sides of the two positioning plates away from each other. When the positioning mechanism is used in a bound manner, the constraint component fixes the limiting plate to the patient's head. When the positioning mechanism is used in an inverted hanging manner, the free ends of the two positioning plates clamp the intubation tube.

[0013] The placement component, the endoscope main body can be vertically inverted and hung on the placement component through the limiting plate.

[0014] Further: The limiting and guiding component includes a guiding shell, a guiding plate, a connecting block and a limiting block. The number of guiding shells is two. The two guiding shells are symmetrically arranged on both sides of the latex block and are both fixedly connected to the limiting plate. One end of the guiding shell away from the limiting plate is movably penetrated by the guiding plate. An electric push rod for driving the guiding plate to slide along the guiding shell is fixedly installed in the guiding shell. One end of the guiding plate extending outside the guiding shell is fixedly connected to the connecting block. A limiting block is rotatably installed between the two connecting blocks through a rotating shaft. A limiting hole for the endoscope main body to pass through is opened in the middle position of the limiting block. When the endoscope main body penetrates the limiting hole, the cross section between the outer wall of the intubation tube and the inner wall of the limiting hole fits. A groove is opened on one side of one of the limiting blocks. One end of the rotating shaft extends into the groove. A motor fixedly connected to the rotating shaft is fixedly installed in the groove. A sealing plate for sealing the opening end of the groove is fixedly installed on the limiting block through a screw.

[0015] Further, the two groups of adjusting components are symmetrically arranged. The adjusting component includes a first worm wheel coaxially and fixedly connected to the first hinge shaft. A first worm meshing with the first worm wheel is rotatably installed on the hinge frame. The two first worms are coaxially fixedly connected through an adjusting column.

[0016] Further, there is a gap between the adjusting column and the limiting plate. The placement component includes a movable base. A fixed seat is installed at the top of the base at a certain height. A hanging plate is fixedly installed on one side of the fixed seat. The longitudinal section of the hanging plate is L-shaped. One end of the hanging plate in the horizontal direction is the same width as the limiting plate and is fixedly connected to the fixed seat. One end of the hanging plate in the vertical direction extends above the horizontal direction end. A receiving hole is opened in the middle position of the end of the hanging plate away from the fixed seat. The hanging plate can movably penetrate between the adjusting column and the limiting plate, and the intubation tube can extend into the receiving hole.

[0017] Furthermore, the positioning plate includes an articulated plate hinged on an articulated frame through an articulated shaft 1, the free end of the articulated plate is articulated with a contact plate through an articulated shaft 2, a worm gear 2 is coaxially fixed to the articulated shaft 2, a worm gear 2 is rotatably mounted on the articulated plate and meshes with the worm gear 2, an arc-shaped groove is provided at the free end of the contact plate, an arc-shaped rubber pad is fixedly mounted on the contact plate and located in the arc-shaped groove, a plurality of protrusions are fixed in an equidistant array on the inner concave surface of the arc-shaped rubber pad, and the constraint component is connected to the two articulated plates.

[0018] Furthermore, a receiving groove is provided at one end of the hinge plate away from the hinge frame, and the contact plate can be hidden in the receiving groove, and a receiving cavity connected to the receiving groove is provided on one of the hinge plates, and the restraining component includes a connecting seat installed in the receiving cavity, and an elastic band is installed on the connecting seat, one end of the elastic band extends to the outside of the receiving groove and is fixedly connected to a positioning column that can be inserted into the receiving groove, and the end of the contact plate and the two ends of the arc groove are fixedly installed with clamping blocks, and when the contact plate is hidden in the receiving groove, the two clamping blocks can be clamped with the positioning column.

[0019] Furthermore, the connecting seat includes a bracket fixedly installed in the accommodating cavity, on which a storage shaft is rotatably installed, one end of the elastic band is fixedly connected to the outer wall of the storage shaft, one end of the storage shaft is fixedly sleeved with a coil spring, and the other end of the coil spring is fixedly connected to the bracket.

[0020] The top of the fixing seat is provided with a liquid storage chamber, the top of the fixing seat is provided with a liquid injection port connected to the liquid storage chamber, and the fixing seat is provided with a blocking cover for blocking the liquid injection port, a liquid spray cover mounted on the outside of the hanging plate is fixedly installed on one side of the fixing seat and located above the hanging plate, the longitudinal section of the liquid spray cover is in the shape of an inverted Chinese character, a liquid passage chamber is provided in the liquid spray cover, a plurality of nozzles 1 are fixedly installed on the inner walls of both sides of the liquid spray cover, and the plurality of nozzles 1 are all connected to the interior of the liquid passage chamber, a liquid outlet pipe connected to the interior of the liquid passage chamber is fixedly installed at the middle position of the inner top wall of the liquid spray cover, a plurality of nozzles 2 are fixedly installed on the inner top wall of the liquid spray cover and located outside the liquid outlet pipe, a liquid pump connected to the inner bottom wall of the liquid storage chamber is fixedly installed on the fixing seat, a liquid inlet pipe connected to the interior of the liquid passage chamber is fixedly installed on the top of the liquid spray cover and located on both sides of the liquid outlet pipe, and the liquid outlet end of the liquid pump is connected to the two liquid inlet pipes through the liquid passage pipe.

[0021] Furthermore, a waste liquid cavity is provided in the fixed seat and below the liquid storage cavity, a drain valve connected to the bottom wall of the waste liquid cavity is fixedly installed on the fixed seat, a liquid receiving plate is fixedly installed on a side of the fixed seat close to the hanging plate and below the liquid spray cover, a liquid receiving groove is provided on the top of the liquid receiving plate, the bottom wall of the liquid receiving groove is inclined downward along the direction of the fixed seat, a liquid guide hole connected to the inside of the waste liquid cavity is provided on the side of the fixed seat close to the liquid receiving plate, the liquid guide hole is located on the inner side of the liquid receiving groove, and is on the same inclined plane as the inner bottom wall of the liquid guide hole and the inner bottom wall of the liquid receiving groove.

[0022] Further, one side of the fixing base close to the hanging plate and on one side of the liquid spraying cover is hinged with a liquid blocking cover sleeved outside the liquid spraying cover, and the liquid blocking cover is located directly above the liquid receiving tank.

[0023] The present invention provides an oral tissue low-damage transoral endoscope. Compared with the prior art, it has the following beneficial effects:

[0024] During transoral detection, the positioning plate is unfolded, and the restraining member is tied to the patient's head so that the latex block is fixed to the patient's mouth. The latex block can restrain and guide the endoscope, thereby protecting the oral cavity; after the detection of the patient is completed, the positioning plate can be folded to clamp the intubation tube, and the endoscope body is hung through the limiting plate, realizing the vertical upside-down storage of the endoscope, with the handle facing down to maintain the wiring state. In this way, the stretching height of the wire can be reduced, the pulling force on the wire can be reduced, the signal transmission stability and service life of each connection can be ensured, and at the same time, when hanging upside down vertically, the endoscope does not contact other objects, avoiding the contamination of the endoscope protection tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0026] Figure 1 Shows a schematic structural diagram of the endoscope body of the present invention;

[0027] Figure 2 Shows a schematic installation structure diagram of the limiting block of the present invention;

[0028] Figure 3 Shows a schematic installation structure diagram of the positioning plate of the present invention;

[0029] Figure 4 Shows a schematic installation structure diagram of the connection seat of the present invention;

[0030] Figure 5 Shows a schematic installation structure diagram of the storage shaft of the present invention;

[0031] Figure 6 Shows a schematic installation structure diagram of the abutting plate of the present invention;

[0032] Figure 7 Shows a schematic installation structure diagram of the arc-shaped rubber pad of the present invention;

[0033] Figure 8Shows a schematic diagram of the installation structure of the liquid receiving plate of the present invention;

[0034] Figure 9 Shows the Figure 8 Enlarged view of part A in the present invention;

[0035] Figure 10 Shows a schematic diagram of the structure of the placement component of the present invention;

[0036] Figure 11 Shows a schematic diagram of the installation structure of the hanging plate of the present invention;

[0037] As shown in the figure: 1. Handle; 11. Spring rod sleeve; 12. Lens; 13. Insertion tube; 14. Control panel; 15. Conducting wire; 2. Limiting plate; 21. Perforation; 22. Latex block; 3. Limiting and guiding assembly; 31. Guide shell; 32. Guide plate; 33. Connecting block; 34. Limiting block; 341. Rotating shaft; 342. Limiting hole; 343. Motor; 35. Electric push rod; 4. Positioning mechanism; 41. Hinge frame; 411. First hinge shaft; 42. Positioning plate; 421. Hinge plate; 4211. Accommodating groove; 4212. Accommodating cavity; 422. Second hinge shaft; 423. Contact plate; 4231. Arc groove; 4232. Arc rubber pad; 4233. Convex block; 4234. Clamping block; 424. Second worm gear; 425. Second worm; 43. Adjusting component; 431. First worm gear; 432. First worm; 433. Adjusting column; 44. Restraining component; 441. Connecting seat; 4411. Bracket; 4412. Receiving shaft; 4413. Torsion spring; 442. Elastic binding band; 443. Positioning column; 5. Placement component; 51. Base; 52. Fixed seat; 521. Liquid storage cavity; 522. Liquid pump; 523. Waste liquid cavity; 524. Liquid guide hole; 53. Hanging plate; 531. Accommodating hole; 6. Liquid spraying cover; 61. Liquid passing cavity; 62. First nozzle; 63. Liquid outlet pipe; 64. Second nozzle; 7. Liquid receiving plate; 71. Liquid receiving groove; 8. Liquid blocking cover. Detailed implementation manners

[0038] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are described clearly and completely. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0039] Embodiment 1

[0040] To solve the technical problems in the background art, the following is a low-damage oral tissue transoral endoscope:

[0041] Combined withFigures 1-7 As shown in Figures 1-7 , an oral tissue low-damage transoral endoscope provided by the present invention includes:

[0042] An endoscope main body, which includes a handle 1. A wire 15 is fixedly connected to the handle 1. The wire is used to connect to an external display device. A spring rod sleeve 11 is fixedly connected to one side of the handle 1. The other end of the spring rod sleeve 11 is fixedly connected to a lens 12. An intubation tube 13 sleeving outside the spring rod sleeve 11 is fixedly installed on the outer side wall of the lens 12. The other end of the intubation tube 13 is fixedly connected to the handle 1. A control panel 14 is fixedly installed on the handle 1. The intubation tube 13 is made of a polytetrafluoroethylene type II super-slippery material, which reduces the friction between the intubation tube 13 and the components in the patient's oral cavity, is conducive to the sliding of the endoscope main body inside the patient's oral cavity, and at the same time, reduces the damage to the patient's oral tissue caused by inserting the endoscope main body into the patient's oral cavity;

[0043] A limiting plate 2, a perforation 21 is provided in the middle position thereof. The limiting plate 2 is movably sleeved outside the intubation tube 13 through the perforation 21. A latex block 22 sleeving outside the intubation tube 13 is fixedly installed on the side of the limiting plate 2 away from the handle 1. There are gaps between the outer side wall of the intubation tube 13 and the latex block 22 and the inner side wall of the perforation 21;

[0044] A limiting and guiding assembly 3, which is installed on the side of the limiting plate 2 away from the handle 1. The limiting and guiding assembly 3 is used to limit the intubation tube 13 and guide the spring rod sleeve 11 along the extending direction of the lens 12;

[0045] A positioning mechanism 4, which is installed on the side of the limiting plate 2 away from the latex block 22. The positioning mechanism 4 has two states:

[0046] In the first state: the positioning mechanism 4 is used to position between the limiting plate 2 and the patient's head;

[0047] In the second state: the positioning mechanism 4 is used to position between the limiting plate 2 and the intubation tube 13;

[0048] A placement assembly 5, which is placed on the ground. When the positioning mechanism 4 is in the second state and the handle 1 is located below the lens 12, the endoscope main body can be hung on the placement assembly 5 through the limiting plate 2. Specifically, it should be noted that: the control panel 14 is communicatively connected to the limiting and guiding assembly 3, the camera, and the fill light, and the control panel 14 is communicatively connected to the external display device through the wire 15.

[0049] When using this device to detect a patient, insert the latex block 22 into the patient's mouth. Let the patient bite the latex block 22 with their teeth to make the positioning mechanism 4 in the first state, so as to position between the limit plate 2 and the patient's head. When inserting the endoscope body into the patient's oral cavity, through the cooperation of the limit guiding component 3, the intubation 13 is limited and the spring rod sleeve 11 is guided along the extending direction of the lens 12, so as to realize the guiding effect when the endoscope body is inserted into the patient's pharynx, effectively reducing the damage to the mucosa in the pharynx caused by the friction between the endoscope body and the patient's pharynx. When the detection of the patient is completed, during the extraction of the endoscope body, when the end of the lens 12 moves to the limit guiding component 3, the positioning mechanism 4 changes from the first state to the second state, so as to position between the limit plate 2 and the intubation 13. At this time, the endoscope body can be hung on the placement component 5 through the limit plate 2, and the handle 1 is located below the lens 12. Thus, during the hanging of the endoscope body, the stretching height of the wire 15 is reduced, thereby reducing the pulling force on the wire 15 and reducing the damage to the wire 15 and the handle 1 caused by the pulling force, thereby prolonging the service life of this device.

[0050] In this embodiment, the limit guiding assembly 3 includes a guiding housing 31, a guiding plate 32, a connecting block 33 and a limit block 34. There are two guiding housings 31, which are symmetrically arranged on both sides of the latex block 22 and are fixedly connected to the limit plate 2. One end of the guiding housing 31 away from the limit plate 2 is movably penetrated by the guiding plate 32. An electric push rod 35 for driving the guiding plate 32 to slide along the guiding housing 31 is fixedly installed in the guiding housing 31. One end of the guiding plate 32 extending outside the guiding housing 31 is fixedly connected to the connecting block 33. A limit block 34 is rotatably installed between the two connecting blocks 33 through a rotating shaft 341. A limit hole 342 for the endoscope body to pass through is formed in the middle of the limit block 34. When the endoscope body passes through the limit hole 342, the cross-section between the outer side wall of the intubation tube 13 and the inner side wall of the limit hole 342 fits. A groove is formed on one side of one of the limit blocks 34. One end of the rotating shaft 341 extends into the groove. A motor 343 fixedly connected to the rotating shaft 341 is fixedly installed in the groove. A sealing plate for sealing the opening end of the groove is fixedly installed on the limit block 34 by screws. When this transoral endoscope is in use, when the end of the endoscope body is inserted into the patient's oral cavity, control the two electric push rods 35 to make the two guiding plates 32 slide along the outside of the two guiding housings 31 respectively, so as to drive the two connecting blocks 33 to approach the patient's pharynx position, and simultaneously push the handle 1 to make the lens 12 displace synchronously along the spring rod sleeve 11, so that the lens 12 is located in the limit hole 342. Then control the motor 343 to make the rotating shaft 341 rotate to drive the limit block 34 to rotate, so as to drive the position of the lens 12 to change and the spring rod sleeve 11 to deform. At this time, when the end of the endoscope body extends towards the patient's pharynx, the spring rod sleeve 11 deforms at the position where it is located at the limit hole 342, so as to achieve the effect of limiting and guiding the endoscope body.

[0051] In this embodiment, the positioning mechanism 4 includes hinge brackets 41 symmetrically and fixedly installed on the side of the limit plate 2 away from the latex block 22. A positioning plate 42 is hinged to the hinge bracket 41 through a first hinge shaft 411. The free ends of the two positioning plates 42 can both abut against the outer wall of the intubation tube 13. An adjusting member 43 is installed on the hinge bracket 41 for driving the first hinge shaft 411 to rotate or stop rotating. A constraint member 44 is connected to the sides of the two positioning plates 42 away from each other. The constraint member 44 is used to constrain and position between the limit plate 2 and the patient's head. When in use, when fixing between the limit plate 2 and the patient's head, the two first hinge shafts 411 are respectively rotated on the two hinge brackets 41 through the two groups of adjusting members 43, so that the two positioning plates 42 are respectively located on the sides of the two positioning plates 42 away from each other. At this time, the latex block 22 is inserted into the patient's mouth. During the biting of the latex block 22 by the patient's teeth, the constraint member 44 can be used to achieve the effect of constraining and positioning between the limit plate 2 and the patient's head; when positioning between the limit plate 2 and the intubation tube 13, the two first hinge shafts 411 are respectively rotated on the two hinge brackets 41 through the two groups of adjusting members 43, so that the two positioning plates 42 respectively rotate around the two first hinge shafts 411, so that the free ends of the two positioning plates 42 both abut against the intubation tube 13, thereby achieving the positioning effect between the limit plate 2 and the intubation tube 13, and the operation is simple.

[0052] Embodiment Two

[0053] As Figures 1-11 shown, on the basis of the above embodiment, the following content is further given in this embodiment:

[0054] In this embodiment, the two groups of adjusting members 43 are symmetrically arranged. The adjusting member 43 includes a first worm wheel 431 coaxially and fixedly connected to the first hinge shaft 411. A first worm 432 meshing with the first worm wheel 431 is rotatably installed on the hinge bracket 41. The two first worms 432 are coaxially fixedly connected through an adjusting column 433. When in use, rotating the first worm 432 can drive the first hinge shaft 411 to rotate on the hinge bracket 41 through the first worm wheel 431, and the operation is simple. Since the first worm wheel 431 and the first worm 432 are meshed with each other and have self-locking property, when the first worm 432 is not rotated, the first worm wheel 431 will not rotate, so that the position of the first hinge shaft 411 can be fixed. Through the symmetrical arrangement of the two groups of adjusting members 43 and the cooperation of the adjusting column 433, when in use, rotating the adjusting column 433 can drive the two first worms 432 to rotate synchronously, so as to drive the two first hinge shafts 411 to rotate reversely on the two hinge brackets 41 respectively.

[0055] In this embodiment, there is a gap between the adjusting column 433 and the limiting plate 2. The placing assembly 5 includes a movable base 51 to facilitate the overall displacement of the placing assembly 5. A fixing base 52 is installed at the top of the base 51. A hanging plate 53 is fixedly installed on one side of the fixing base 52. The longitudinal section of the hanging plate 53 is L-shaped. One end of the hanging plate 53 in the horizontal direction is the same width as the limiting plate 2 and is fixedly connected to the fixing base 52. One end in the vertical direction extends above the end in the horizontal direction. A receiving hole 531 is formed in the middle position of the end of the hanging plate 53 away from the fixing base 52. The hanging plate 53 can movably penetrate between the adjusting column 433 and the limiting plate 2, and the intubation tube 13 can extend into the receiving hole 531. During use, when the endoscope body is hung on the placing assembly 5, the hanging plate 53 is passed through between the adjusting column 433 and the limiting plate 2, and the intubation tube 13 is aligned with the receiving hole 531 so that the limiting plate 2 is located directly above one end of the hanging plate 53 in the horizontal direction, and the limiting plate 2 is in contact with the top plate of one end of the hanging plate 53 in the horizontal direction. At this time, the intubation tube 13 is located in the receiving hole 531, and one end of the hanging plate 53 in the vertical direction limits the limiting plate 2, thereby realizing the hanging and positioning effect of the endoscope body.

[0056] In this embodiment, the positioning plate 42 includes a hinge plate 421 hinged to the hinge frame 41 through a first hinge shaft 411. The free end of the hinge plate 421 is hinged with a contact plate 423 through a second hinge shaft 422. A second worm gear 424 is coaxially fixed on the second hinge shaft 422. A second worm 425 meshing with the second worm gear 424 is rotatably installed on the hinge plate 421. An arc-shaped groove 4231 is formed at the free end of the contact plate 423. An arc-shaped rubber pad 4232 is fixedly installed in the arc-shaped groove 4231 on the contact plate 423. A plurality of bumps 4233 are fixedly arranged at equal intervals on the concave surface of the arc-shaped rubber pad 4232. The constraint member 44 is connected to the two hinge plates 421. During use, when positioning between the limit plate 2 and the insertion tube 13, the second worms 425 are respectively rotated to drive the second hinge shafts 422 to rotate through the second worm gears 424, so that the two contact plates 423 respectively rotate around the two second hinge shafts 422. The rotation adjusting column 433 drives the two first hinge shafts 411 to rotate in opposite directions on the two hinge frames 41 respectively, so that the free ends of the two positioning plates 42 approach each other. The two second worms 425 make the two contact plates 423 approach each other, so that the two arc-shaped grooves 4231 are located on the side where the two contact plates 423 approach each other. When the two contact plates 423 contact the insertion tube 13, the arc-shaped rubber pads 4232 on the two contact plates 423 contact the insertion tube 13. On the one hand, the friction between the contact plate 423 and the insertion tube 13 is increased, and the positioning effect between the limit plate 2 and the insertion tube 13 is enhanced. On the other hand, the hard friction between the contact plate 423 and the insertion tube 13 is effectively avoided, and the situation of abrasion to the insertion tube 13 is prevented. Among them, in this embodiment, a blocking block is integrally formed on the hinge plate 421. The contact plate 423 can contact the blocking block. When the contact plate 423 contacts the blocking block, when the arc-shaped rubber pads 4232 on the two contact plates 423 contact the insertion tube 13, the arc-shaped grooves 4231 on the two contact plates 423 are located on the side where the two contact plates 423 approach each other.

[0057] Embodiment Three

[0058] As Figures 1-11 shown, on the basis of the above embodiment, this embodiment further provides the following content:

[0059] In this embodiment, the hinge plate 421 is provided with a receiving groove 4211 at one end away from the hinge frame 41, and the contact plate 423 can be hidden in the receiving groove 4211. One of the hinge plates 421 is provided with a receiving cavity 4212 connected to the receiving groove 4211. The restraining member 44 includes a connecting seat 441 installed in the receiving cavity 4212, and an elastic band 442 is installed on the connecting seat 441. One end of the elastic band 442 extends to the receiving groove. The outer part of the 4211 is fixedly connected with a positioning column 443 which can be inserted into the receiving groove 4211. The ends of the contact plate 423 and the two ends of the arc groove 4231 are fixedly installed with a clamping block 4234. When the contact plate 423 is hidden in the receiving groove 4211, the two clamping blocks 4234 can be clamped with the positioning column 443. Specifically, it should be explained that: the side of the receiving groove 4211 away from the contact plate 423 is symmetrically opened with a clamping block 4234 for clamping The make way groove for making way is provided with a restraining component 44 including a connecting seat 441, an elastic band 442 and a positioning column 443. When positioning between the limiting plate 2 and the patient's head, the latex block 22 is inserted into the patient's mouth. During the period when the patient's teeth bite the latex block 22, the adjusting column 433 is rotated so that the receiving grooves 4211 on the two hinged plates 421 are located on the side of the hinged plate 421 close to the limiting plate 2. The positioning column 443 is used to pull the elastic band 442 away from the connecting seat 441 and bypass the rear side of the patient's head to insert into the receiving groove 4211 on the other hinged plate 421. Then, the two worm gears 425 are rotated respectively so that the two contact plates 423 are hidden in the two receiving grooves 4211 respectively. At this time, the end of the contact plate 423 is clamped and fixed to the two clamping blocks 4234 to the positioning column 443 inserted into the receiving groove 4211, so that the limiting plate 2 and the patient's head can be restrained and fixed by the elastic band 442.

[0060] In this embodiment, the connecting seat 441 includes a bracket 4411 fixedly installed in the accommodating cavity 4212, and a receiving shaft 4412 is rotatably installed on the bracket 4411. One end of the elastic band 442 is fixedly connected to the outer wall of the receiving shaft 4412, and a coil spring 4413 is fixedly sleeved on one end of the receiving shaft 4412. The other end of the coil spring 4413 is fixedly connected to the bracket 4411. When in use, the elastic band 442 is pulled away from the connecting seat 441 through the positioning column 443 and bypasses the receiving slot 421 inserted on another hinged plate 421 from the back side of the patient's head. 11, the storage shaft 4412 rotates on the bracket 4411 to unfold the elastic band 442 wrapped around the outside of the storage shaft 4412, and the coil spring 4413 is deformed by the force. When the endoscope body is not in use, it is hung on the hanging plate 53, and the two contact plates 423 do not position the positioning column 443, and the coil spring 4413 returns to a natural state, so that the storage shaft 4412 rotates and resets on the bracket 4411, and the elastic band 442 can be wound and stored in the accommodating cavity 4212, thereby achieving the storage effect of the elastic band 442.

[0061] like Figures 8-11As shown, in this embodiment, a liquid storage chamber 521 is formed in the fixed seat 52. A liquid injection port communicating with the liquid storage chamber 521 is formed at the top of the fixed seat 52, and a plugging cover for plugging the liquid injection port is sleeved on the fixed seat 52. A liquid spraying cover 6 sleeved outside the hanging plate 53 is fixedly installed on one side of the fixed seat 52 and above the hanging plate 53. The longitudinal section of the liquid spraying cover 6 is in an inverted U shape. A liquid passage chamber 61 is formed in the liquid spraying cover 6. A plurality of first nozzles 62 are fixedly installed on both inner walls of the liquid spraying cover 6, and the plurality of first nozzles 62 are all communicated with the inside of the liquid passage chamber 61. A liquid outlet pipe 63 communicating with the inside of the liquid passage chamber 61 is fixedly installed at the middle position of the inner top wall of the liquid spraying cover 6. A plurality of second nozzles 64 all communicated with the inside of the liquid passage chamber 61 are fixedly installed on the inner top wall of the liquid spraying cover 6 and outside the liquid outlet pipe 63. A liquid pump 522 communicated with the inner bottom wall of the liquid storage chamber 521 is fixedly installed on the fixed seat 52. Liquid inlet pipes communicated with the inside of the liquid passage chamber 61 are fixedly installed on both sides of the top of the liquid spraying cover 6 and on both sides of the liquid outlet pipe 63. The liquid outlet end of the liquid pump 522 is connected to both liquid inlet pipes through a liquid passage pipe. Through the design of arranging the liquid storage chamber 521, the liquid pump 522 and the liquid spraying cover 6, the cleaning liquid is poured into the liquid storage chamber 521 through the liquid injection port for storage. When hanging and storing the endoscope main body, the electric push rod 35 is controlled to make the two guiding plates 32 slide along the outside of the two guiding shells 31 respectively, so as to drive the two connecting blocks 33 to move upward to the outside of the lens 12. The limiting block 34 contacts the liquid outlet pipe 63, so that the liquid outlet pipe 63 is communicated with the limiting hole 342. The liquid pump 522 is controlled to pump out the cleaning liquid stored in the liquid storage chamber 521, and then convey it into the liquid passage chamber 61. Part of the disinfectant is sprayed out through the plurality of first nozzles 62 and the plurality of second nozzles 64 to wash the outside of the intubation tube 13 with disinfectant, and at the same time wash the outside of the limiting plate 2, the latex block 22, the limiting and guiding assembly 3 and the positioning mechanism 4 with disinfectant. In addition, part of the disinfectant flows out through the liquid outlet pipe 63, and then is poured onto the protective lens through the limiting hole 342. The cleaning liquid flows along the outside of the intubation tube 13, flows downward from the gap between the latex block 22 and the intubation tube 13 and the gap between the inner side wall of the through hole 21 and the intubation tube 13, and then flows downward from the gap between the adjacent convex blocks 4233 on the two arc-shaped rubber pads 4232, so as to achieve the effect of washing the outside of the intubation tube 13 with disinfectant. When medical staff use it next time, they only need to wipe and disinfect the contact position between the convex block 4233 and the intubation tube 13, which is convenient for the next use.

[0062] In this embodiment, a waste liquid cavity 523 is provided below the liquid storage cavity 521 inside the fixed seat 52. A drain valve communicating with the bottom wall of the waste liquid cavity 523 is fixedly installed on the fixed seat 52. A liquid receiving plate 7 is fixedly installed on the side of the fixed seat 52 close to the hanging plate 53 and below the liquid spraying cover 6. A liquid receiving groove 71 is formed at the top of the liquid receiving plate 7. The bottom wall of the liquid receiving groove 71 slopes downward along the direction of the fixed seat 52. A liquid guiding hole 524 communicating with the inside of the waste liquid cavity 523 is formed on the side of the fixed seat 52 close to the liquid receiving plate 7. The liquid guiding hole 524 is located inside the liquid receiving groove 71, and the bottom wall of the liquid guiding hole 524 and the bottom wall of the liquid receiving groove 71 are on the same inclined plane. A liquid blocking cover 8 sleeved outside the liquid spraying cover 6 is hinged on the side of the fixed seat 52 close to the hanging plate 53 and on one side of the liquid spraying cover 6. The liquid blocking cover 8 is located directly above the liquid receiving groove 71. Through the design of the waste liquid cavity 523 and the liquid receiving plate 7, the waste liquid generated after the disinfectant sprayed inside the liquid spraying cover 6 flushes the endoscope main body can flow into the liquid receiving groove 71, and then flow into the inside of the waste liquid cavity 523 through the liquid guiding hole 524, realizing the collection effect of the disinfectant waste liquid, which is beneficial to the treatment of the disinfectant waste liquid. Through the design of the liquid blocking cover 8, when flushing the endoscope main body, the liquid blocking cover 8 rotates on the fixed seat 52, so that the liquid blocking cover 8 is sleeved outside the endoscope main body, thus effectively avoiding the situation that the disinfectant splashes outwards when flushing the endoscope main body with the disinfectant.

[0063] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0064] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A low-loss oral tissue transoral endoscope, characterized in that: include: The endoscope body comprises an insertion tube, one end of which is provided with a lens, and the other end of which is fixedly connected to a handle; A limit plate, wherein a perforation is provided in the middle thereof, the limit plate is movably sleeved on the outside of the cannula through the perforation, and a latex block sleeved on the outside of the cannula is fixedly installed on the side of the limit plate away from the handle; A limiting guide assembly is installed on the side of the limiting plate away from the handle, and is used to limit the insertion tube and guide the spring rod sleeve along the extension direction of the lens; The positioning mechanism is installed on the side of the limit plate away from the latex block. The positioning mechanism includes an articulated frame symmetrically fixedly installed on the side of the limit plate away from the latex block. The articulated frame is hinged with a positioning plate through an articulated shaft. The free ends of the two positioning plates can both contact the outer wall of the cannula. The articulated frame is equipped with an adjusting component for driving the articulated shaft to rotate or stop rotating. The two positioning plates are connected to a restraining component on the side away from each other. When the positioning mechanism is used by binding, the restraining component fixes the limit plate to the patient's head. When the positioning mechanism is used upside down, the free ends of the two positioning plates are clamped on the cannula. The endoscope body can be vertically hung upside down on the placement component through a limiting plate.

2. The low-loss oral endoscope according to claim 1, characterized in that: The limit guide assembly includes a guide shell, a guide plate, a connecting block and a limit block. There are two guide shells, which are symmetrically arranged on both sides of the latex block and are fixedly connected to the limit plate. The guide plate is movably penetrated at one end of the guide shell away from the limit plate. An electric push rod for driving the guide plate to slide along the guide shell is fixedly installed in the guide shell. The end of the guide plate extending to the outside of the guide shell is fixedly connected to a connecting block. The limit block is rotatably installed between the two connecting blocks via a rotating shaft. A limit hole for the endoscope body to pass through is opened in the middle position of the limit block. When the endoscope body passes through the limit hole, the cross-section between the outer wall of the tube and the inner wall of the limit hole fits together. A groove is opened on one side of one of the limit blocks, and one end of the rotating shaft extends into the groove. A motor fixedly connected to the rotating shaft is fixedly installed in the groove. A sealing plate for sealing the open end of the groove is fixedly installed on the limit block by screws.

3. The low-loss oral endoscope according to claim 2, characterized in that: The two groups of adjusting components are arranged symmetrically. The adjusting components include a worm gear one coaxially fixed with the hinge shaft. A worm one meshing with the worm gear one is rotatably mounted on the hinge frame. The two worm gears one are coaxially fixed through an adjusting column.

4. The low-loss oral endoscope according to claim 3, characterized in that: There is a gap between the adjusting column and the limiting plate, and the placing assembly includes a movable base, a fixing seat is installed at the top height of the base, a hanging plate is fixedly installed on one side of the fixing seat, and the longitudinal section of the hanging plate is L-shaped. One end of the hanging plate in the horizontal direction is the same width as the limiting plate and is fixedly connected to the fixing seat, and one end in the vertical direction extends to above the horizontal end. An accommodating hole is opened in the middle position of the end of the hanging plate away from the fixing seat, and the hanging plate can movably pass through between the adjusting column and the limiting plate, and the insert can extend into the accommodating hole.

5. The low-loss oral endoscope according to claim 4, characterized in that: The positioning plate includes an articulated plate hinged on an articulated frame through an articulated shaft 1, the free end of the articulated plate is articulated with a contact plate through an articulated shaft 2, a worm gear 2 is coaxially fixed to the articulated shaft 2, a worm gear 2 is rotatably mounted on the articulated plate and meshes with the worm gear 2, an arc-shaped groove is provided at the free end of the contact plate, an arc-shaped rubber pad is fixedly mounted on the contact plate and located in the arc-shaped groove, a plurality of protrusions are fixed in an equidistant array on the inner concave surface of the arc-shaped rubber pad, and a constraint component is connected to the two articulated plates.

6. The low-loss oral endoscope according to claim 5, characterized in that: A receiving groove is provided at one end of the hinge plate away from the hinge frame, and the contact plate can be hidden in the receiving groove, and a receiving cavity connected to the receiving groove is provided on one of the hinge plates, and the restraining component includes a connecting seat installed in the receiving cavity, and an elastic band is installed on the connecting seat, one end of the elastic band extends to the outside of the receiving groove and is fixedly connected to a positioning column that can be inserted into the receiving groove, and the end of the contact plate and the two ends of the arc groove are fixedly installed with clamping blocks, and when the contact plate is hidden in the receiving groove, the two clamping blocks can be clamped with the positioning column.

7. The low-loss oral tissue transoral endoscope according to claim 6, characterized in that: The connecting seat includes a bracket fixedly installed in the accommodating cavity, on which a storage shaft is rotatably installed, one end of the elastic band is fixedly connected to the outer wall of the storage shaft, one end of the storage shaft is fixedly sleeved with a coil spring, and the other end of the coil spring is fixedly connected to the bracket.

8. The low-loss oral endoscope according to claim 7, characterized in that: The fixing seat is provided with a liquid storage chamber, a liquid injection port connected to the liquid storage chamber is provided on the top of the fixing seat, and a blocking cover for blocking the liquid injection port is sleeved on the fixing seat, a liquid spray cover sleeved on the outside of the hanging plate is fixedly installed on one side of the fixing seat and located above the hanging plate, the longitudinal section of the liquid spray cover is in the shape of an inverted Chinese character, a liquid passage chamber is provided in the liquid spray cover, a plurality of nozzles 1 are fixedly installed on the inner walls of both sides of the liquid spray cover, and the plurality of nozzles 1 are all connected to the interior of the liquid passage chamber, a liquid outlet pipe connected to the interior of the liquid passage chamber is fixedly installed at the middle position of the inner top wall of the liquid spray cover, a plurality of nozzles 2 are fixedly installed on the inner top wall of the liquid spray cover and located outside the liquid outlet pipe, and the liquid pump connected to the bottom wall of the liquid storage chamber is fixedly installed on the fixing seat, a liquid inlet pipe connected to the interior of the liquid passage chamber is fixedly installed on the top of the liquid spray cover and located on both sides of the liquid outlet pipe, and the liquid outlet end of the liquid pump is connected to the two liquid inlet pipes through the liquid passage pipe.

9. The low-loss oral endoscope according to claim 8, characterized in that: A waste liquid cavity is provided in the fixed seat and below the liquid storage cavity, a drain valve connected to the bottom wall of the waste liquid cavity is fixedly installed on the fixed seat, a liquid receiving plate is fixedly installed on one side of the fixed seat close to the hanging plate and below the liquid spray cover, a liquid receiving groove is provided on the top of the liquid receiving plate, the bottom wall of the liquid receiving groove is inclined downward along the fixed seat, a liquid guide hole connected to the inside of the waste liquid cavity is provided on one side of the fixed seat close to the liquid receiving plate, the liquid guide hole is located on the inner side of the liquid receiving groove, and is located on the same inclined plane as the inner bottom wall of the liquid guide hole and the inner bottom wall of the liquid receiving groove.

10. The low-loss oral tissue transoral endoscope according to claim 9, characterized in that: A liquid blocking cover sleeved outside the liquid spraying cover is hingedly connected to one side of the fixing seat close to the hanging plate and located on one side of the liquid spraying cover, and the liquid blocking cover is located just above the liquid receiving tank.

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