A low-loss oral tissue transoral endoscope

Abstract

The present invention provides a low-loss oral tissue transoral endoscope, comprising: an endoscope body; a limit plate, wherein a perforation is provided at the center thereof, the limit plate being movably sleeved on the outside of the cannula through the perforation, and a latex block sleeved on the outside of the cannula being fixedly mounted on the side of the limit plate away from the handle; a limit guide assembly, which is mounted on the side of the limit plate away from the handle, the limit guide assembly being used to limit the cannula and guide the spring rod sleeve along the extension direction of the lens; a positioning mechanism, which is mounted on the side of the limit plate away from the latex block, the positioning mechanism comprising an articulated frame symmetrically fixedly mounted on the side of the limit plate away from the latex block, the articulated frame being hinged to the positioning plate via an articulated shaft. The present invention can realize the standby vertical inversion of the transoral endoscope to avoid damage to the handle joint.

Description

Technical Field

[0001] The present invention relates to the technical field of oral endoscopes, and in particular to a low-loss oral tissue endoscope. Background Art

[0002] As a core instrument for the diagnosis and treatment of gastrointestinal diseases, oral endoscopes often need to be placed mid-way during an examination or while waiting for the next patient to be examined. When the endoscope is placed mid-way on the operating table, the handle, connecting catheter, and data cable must remain connected to maintain the device's standby state. At this time, the insertion portion of the endoscope is horizontally in contact with the table, and the table may contain residual disinfectant, body fluids, or environmental pollutants. Direct contact with the insertion portion surface can easily lead to secondary contamination.

[0003] In the prior art, such as the indexing hanger proposed in patent CN221904029U, a rotating shaft and an indexing seat are used to achieve multi-angle positioning, allowing multiple endoscopes to be suspended simultaneously and reducing vertical space usage. However, this solution can achieve vertical suspension and avoid the problem of contamination of the endoscope body caused by horizontal placement, but it still has the following shortcomings:

[0004] The chuck design of the graduated hanger allows the endoscope to hang from the handle, allowing the insertion portion to naturally droop. When the handle is in the operating position, gravity still causes the wire and catheter to form a sharp bend at the connection. Long-term use can easily lead to cracked cable insulation or damaged catheter joint seals.

[0005] Therefore, the present application proposes a low-loss oral tissue transoral endoscope. Summary of the Invention

[0006] In view of the deficiencies of the prior art, the present invention provides a low-loss oral tissue transoral endoscope, which solves the problems mentioned in the background art.

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

[0008] A low-loss oral tissue transoral endoscope comprising:

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

[0010] A limit plate is provided with a perforation in the middle thereof, and the limit plate is movably sleeved on the outside of the cannula through the perforation. A latex block sleeved on the outside of the cannula is fixedly installed on the side of the limit plate away from the handle;

[0011] A limit guide assembly is installed on the side of the limit plate away from the handle, and is used to limit the cannula and guide the spring rod sleeve along the extension direction of the lens;

[0012] The positioning mechanism is installed on the side of the limit plate away from the latex block. The positioning mechanism includes a hinge frame symmetrically fixedly installed on the side of the limit plate away from the latex block. The hinge frame is hinged with a positioning plate through a hinge shaft. The free ends of the two positioning plates can both conflict with the outer side wall of the intubation tube. The hinge frame is equipped with an adjustment component for driving the hinge 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 bound for use, 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 intubation tube.

[0013] The endoscope body can be vertically hung upside down on the placement component through the limiting plate.

[0014] Further: the limit guide assembly includes a guide shell, a guide plate, a connecting block and a limit block. There are two guide shells, and the two guide shells are symmetrically arranged on both sides of the latex block and are fixedly connected to the limit plate. The guide shell is movably penetrated by the guide plate at one end 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 guide plate extends to the end of the guide shell outside and is fixedly connected to the connecting block. The limit block is rotatably installed between the two connecting blocks through 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 cannula 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.

[0015] Furthermore, the two groups of adjustment components are arranged symmetrically, and the adjustment components include a worm gear 1 coaxially fixed with the hinge shaft, a worm gear 1 meshing with the worm gear 1 is rotatably mounted on the hinge frame, and the two worm gears 1 are coaxially fixed through an adjustment column.

[0016] Furthermore, 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 provided in the middle position of the end of the hanging plate away from the fixing seat. The hanging plate can movably pass through between the adjusting column and the limiting plate, and the insert can extend into the accommodating hole.

[0017] Furthermore, the positioning plate includes a hinged plate hinged on the hinge frame through a hinge shaft 1, the free end of the hinged plate is hinged to a contact plate through a hinge shaft 2, a worm gear 2 is coaxially fixed to the hinge shaft 2, a worm gear 2 is rotatably mounted on the hinge 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 on the inner concave surface of the arc-shaped rubber pad in an equidistant array, and the constraint component is connected to the two hinged 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 strap is installed on the connecting seat, and one end of the elastic strap 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-shaped groove are fixedly installed with a clamping block. 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, a storage shaft is rotatably installed on the bracket, 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 spray cover has two ends which are connected to the bottom of the spray cover, and the ends are connected with the up-down knob of the spray cover to form a circle around the top of the spray cover, and the upper and lower ends of the spray cover are connected with the upper and lower ends of the spray cover to form a circle around the top of the spray cover.

[0021] Furthermore, a waste liquid chamber is provided in the fixed seat and below the liquid storage chamber, a drain valve connected to the bottom wall of the waste liquid chamber is fixedly installed on the fixed seat, a liquid receiving plate is fixedly installed on the 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 chamber 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] Furthermore, a liquid blocking cover is hingedly connected to one side of the fixing seat close to the hanging plate and located on one side of the liquid spray cover. The liquid blocking cover is sleeved on the outside of the liquid spray cover, and the liquid blocking cover is located directly above the liquid receiving tank.

[0023] The present invention provides a low-loss oral endoscope. Compared with the existing technology, it has the following advantages:

[0024] During oral examination, the positioning plate is unfolded and the restraint component is tied to the patient's head to fix the latex block to the patient's mouth. The latex block can restrain and guide the endoscope, thereby protecting the oral cavity; after the patient's examination is completed, the folded positioning plate can clamp the cannula, and the endoscope body is hung through the limit plate to achieve vertical inverted storage of the endoscope, with the handle facing down to maintain the wiring state. This can reduce the stretching height of the wire, reduce the pulling force on the wire, and ensure the signal transmission stability and service life of each connection. At the same time, when hung vertically upside down, the endoscope does not come into contact with other objects, avoiding contamination of the endoscope protection tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 A schematic structural diagram of the endoscope body of the present invention is shown;

[0027] Figure 2 A schematic diagram of the installation structure of the limit block of the present invention is shown;

[0028] Figure 3 A schematic diagram of the installation structure of the positioning plate of the present invention is shown;

[0029] Figure 4 A schematic diagram of the installation structure of the connecting base of the present invention is shown;

[0030] Figure 5 A schematic diagram of the installation structure of the storage shaft of the present invention is shown;

[0031] Figure 6 A schematic diagram of the installation structure of the contact plate of the present invention is shown;

[0032] Figure 7 A schematic diagram of the installation structure of the arc-shaped rubber pad of the present invention is shown;

[0033] Figure 8A schematic diagram of the installation structure of the liquid receiving plate of the present invention is shown;

[0034] Figure 9 The present invention shows Figure 8 Enlarged view of point A in the middle;

[0035] Figure 10 Shows a schematic structural diagram of the placement assembly 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. cannula; 14. control panel; 15. wire; 2. limit plate; 21. perforation; 22. latex block; 3. limit guide assembly; 31. guide shell; 32. guide plate; 33. connecting block; 34. limit block; 341. rotating shaft; 342. limit hole; 343. motor; 35. electric push rod; 4. positioning mechanism; 41. articulated frame; 411. articulated axis 1; 42. positioning plate; 421. articulated plate; 4211. receiving groove; 4212. receiving cavity; 422. articulated axis 2; 423. contact plate; 4231. arc groove; 4232. arc rubber pad; 4233. bump; 42 34. Clamping block; 424. Worm gear 2; 425. Worm gear 2; 43. Adjusting component; 431. Worm gear 1; 432. Worm gear 1; 433. Adjusting column; 44. Constraining component; 441. Connecting seat; 4411. Bracket; 4412. Storage shaft; 4413. Coil spring; 442. Elastic strap; 443. Positioning column; 5. Placement component; 51. Base; 52. Fixing seat; 521. Liquid storage chamber; 522. Liquid pump; 523. Waste liquid chamber; 524. Liquid guide hole; 53. Hanging plate; 531. Receiving hole; 6. Liquid spray cover; 61. Liquid passage chamber; 62. Nozzle 1; 63. Liquid outlet pipe; 64. Nozzle 2; 7. Liquid receiving plate; 71. Liquid receiving tank; 8. Liquid blocking cover. DETAILED DESCRIPTION

[0038] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0039] Example 1

[0040] To solve the technical problems in the background technology, a low-loss oral tissue transoral endoscope is provided as follows:

[0041] Combine Figure 1-Figure 7 As shown, the present invention provides a low-loss oral tissue transoral endoscope, comprising:

[0042] The endoscope body includes a handle 1, to which a wire 15 is fixedly connected, and 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, and the other end of the spring rod sleeve 11 is fixedly connected to a lens 12. A cannula 13 sleeved on the outside of the spring rod sleeve 11 is fixedly installed on the outer wall of the lens 12. The other end of the cannula 13 is fixedly connected to the handle 1. A control panel 14 is fixedly installed on the handle 1. The cannula 13 is made of polytetrafluoroethylene Class II super-slip material, which reduces the friction between the cannula 13 and the components inside the patient's oral cavity, facilitates the sliding of the endoscope body inside the patient's oral cavity, and at the same time, reduces the damage to the patient's oral tissue caused by the insertion of the endoscope body into the patient's oral cavity;

[0043] The limiting plate 2 has a through-hole 21 in the middle thereof, and the limiting plate 2 is movably sleeved on the outside of the cannula 13 through the through-hole 21. A latex block 22 sleeved on the outside of the cannula 13 is fixedly mounted on the side of the limiting plate 2 away from the handle 1. There are gaps between the outer wall of the cannula 13 and the latex block 22 as well as the inner wall of the through-hole 21.

[0044] A limiting guide assembly 3 is mounted on the side of the limiting plate 2 away from the handle 1. The limiting guide assembly 3 is used to limit the cannula 13 and guide the spring rod sleeve 11 along the extension direction of the lens 12;

[0045] The positioning mechanism 4 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 the limiting plate 2 and the patient's head;

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

[0048] The placement component 5 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 body can be hung on the placement component 5 through the limit plate 2. Specifically, it should be noted that the control panel 14 is communicatively connected with the limit guide component 3, the camera and the fill light, and the control panel 14 is communicatively connected with the external display device through the guide 15.

[0049] When using this device to examine a patient, the latex block 22 is inserted into the patient's mouth, and the patient's teeth bite the latex block 22 to make the positioning mechanism 4 be in the first state, thereby positioning the limit plate 2 and the patient's head. When the endoscope body is inserted into the patient's mouth, the limit guide component 3 cooperates to limit the intubation tube 13 and guide the spring rod sleeve 11 along the extension direction of the lens 12, thereby achieving a guiding effect when the endoscope body is inserted into the patient's pharynx, effectively reducing the damage to the pharyngeal mucosa caused by the friction between the endoscope body and the patient's pharynx. After the patient examination is completed, during the withdrawal of the endoscope body, when the end of the lens 12 is displaced to the limit guide component 3, the positioning mechanism 4 is changed from the first state to the second state, thereby positioning the limit plate 2 and the cannula 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. Therefore, 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 between the wire 15 and the handle 1 caused by the pulling force, thereby extending the service life of the device.

[0050] In this embodiment, the limiting guide assembly 3 includes a guide shell 31, a guide plate 32, a connecting block 33 and a limiting block 34. There are two guide shells 31. The two guide shells 31 are symmetrically arranged on both sides of the latex block 22 and are both fixedly connected to the limiting plate 2. The guide shell 31 is away from the limiting plate 2. One end of the guide shell 31 is movably penetrated by the guide plate 32. An electric push rod 35 is fixedly installed in the guide shell 31 for driving the guide plate 32 to slide along the guide shell 31. The guide plate 32 extends to the end of the guide shell 31 and is fixedly connected to the connecting block 33. The limiting block 34 is rotatably installed between the two connecting blocks 33 through a rotating shaft 341. A limiting hole 342 for the endoscope body to pass through is provided in the middle position of the limiting block 34. When the endoscope body passes through the limiting hole 342, the cross-section between the outer wall of the cannula 13 and the inner wall of the limiting hole 342 fits together. A groove is provided on one side of one of the limiting blocks 34. One end of the rotating shaft 341 The motor 343 is then controlled to rotate the shaft 341 to drive the limit block 34 to rotate, thereby driving 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 toward the patient's pharynx, the spring rod sleeve 11 is deformed at the position of the limit hole 342, thereby achieving the limiting and guiding effect of the endoscope body.

[0051] In this embodiment, the positioning mechanism 4 includes an articulated frame 41 symmetrically fixedly mounted on the side of the limiting plate 2 away from the latex block 22, and a positioning plate 42 is hinged on the articulated frame 41 through a hinge shaft 411. The free ends of the two positioning plates 42 can both conflict with the outer wall of the cannula 13, and an adjusting component 43 is installed on the articulated frame 41 to drive the articulated shaft 411 to rotate or stop rotating. A restraining component 44 is connected to the side away from each other of the two positioning plates 42. The restraining component 44 is used to restrain and position the limiting plate 2 and the patient's head. When in use, when the limiting plate 2 is fixed to the patient's head, the two articulated shafts 411 are respectively positioned on the two articulated frames 4 through two sets of adjusting components 43. 1, so that the two positioning plates 42 are respectively located on the side away from each other. At this time, 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 constraint component 44 can be used to constrain the positioning effect between the limiting plate 2 and the patient's head; when positioning between the limiting plate 2 and the cannula 13, the two hinge shafts 411 are respectively rotated on the two hinge frames 41 through the two groups of adjustment components 43, so that the two positioning plates 42 are respectively rotated around the two hinge shafts 411, so that the free ends of the two positioning plates 42 are in contact with the cannula 13, thereby achieving the positioning effect between the limiting plate 2 and the cannula 13, and the operation is simple.

[0052] Example 2

[0053] like Figures 1-11 As shown, based on the above embodiment, this embodiment further provides the following content:

[0054] The two worm gears 432 are coaxially fixed to the hinge shaft 411 by rotating the worm gear 432, and the two worm gears 432 are coaxially fixed to the hinge shaft 411 by the adjusting column 433. When in use, the worm gear 432 can be rotated to drive the hinge shaft 411 to rotate on the hinge shaft 41 through the worm gear 431. The operation is simple. Since the meshing of the worm gear 431 and the worm gear 432 is self-locking, the worm gear 431 will not rotate when the worm gear 432 is not rotated, thereby fixing the position of the hinge shaft 411. The two groups of adjusting components 43 are symmetrically arranged and the adjusting column 433 cooperates. When in use, the adjusting column 433 can be rotated to drive the two worm gears 432 to rotate synchronously, thereby driving the two hinge shafts 411 to rotate in opposite directions on the two hinge frames 41.

[0055] In this embodiment, there is a gap between the adjusting column 433 and the limiting plate 2, and the placement component 5 includes a movable base 51 to facilitate the overall displacement of the placement component 5. A fixing seat 52 is installed at the top height of the base 51, and a hanging plate 53 is fixedly installed on one side of the fixing seat 52. The longitudinal section of the hanging plate 53 is L-shaped, and 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 seat 52, and one end in the vertical direction extends to above the horizontal end. A receiving hole 531 is provided in the middle position of the end of the hanging plate 53 away from the fixing seat 52, and the hanging plate 53 can be movably penetrated. The cannula 13 passes between the adjusting column 433 and the limiting plate 2, and the cannula 13 can extend into the accommodating hole 531. When in use, when the endoscope body is hung on the placement component 5, the hanging plate 53 is passed between the adjusting column 433 and the limiting plate 2, and the cannula 13 is aligned with the accommodating hole 531 so that the limiting plate 2 is located directly above one end of the hanging plate 53 in the horizontal direction, so that the limiting plate 2 is fitted with the top plate of one end of the hanging plate 53 in the horizontal direction. At this time, the cannula 13 is located in the accommodating hole 531, and one end of the hanging plate 53 in the vertical direction limits the limiting plate 2, thereby achieving 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 hinge shaft 411, the free end of the hinge plate 421 is hinged to a contact plate 423 through a hinge shaft 422, a worm gear 424 is coaxially fixed to the hinge shaft 422, a worm 425 is rotatably mounted on the hinge plate 421 and meshed with the worm gear 424, an arc groove 4231 is provided at the free end of the contact plate 423, and a fixed arc groove 4231 is provided on the contact plate 423 and is located in the arc groove 4231. An arc-shaped rubber pad 4232 is installed, and a plurality of protrusions 4233 are fixed to the concave surface of the arc-shaped rubber pad 4232 in an equidistant array. The constraint component 44 is connected to the two hinged plates 421. When in use, when positioning between the limit plate 2 and the cannula 13, the worm 2 425 is rotated respectively to drive the hinge shaft 2 422 to rotate through the worm gear 2 424, so that the two contact plates 423 rotate around the two hinge shafts 2 422 respectively, and the two hinge shafts 1 411 are driven by the rotating adjustment column 433. The two hinged frames 41 rotate in opposite directions to make the free ends of the two positioning plates 42 approach each other, and the two worm gears 425 make the two contact plates 423 approach each other, so that the two arc grooves 4231 are located on the side where the two contact plates 423 approach each other. When the two contact plates 423 contact the cannula 13, the arc-shaped rubber pads 4232 on the two contact plates 423 contact the cannula 13, which increases the friction between the contact plates 423 and the cannula 13 and increases the positioning between the limit plate 2 and the cannula 13. effect, and on the other hand, effectively avoids the hard friction between the contact plate 423 and the cannula 13, which causes wear to the cannula 13. In this embodiment, a blocking block is integrally formed on the hinged plate 421, and the contact plate 423 can contact the blocking block. When the contact plate 423 contacts the blocking block, the arc-shaped rubber pads 4232 on the two contact plates 423 contact the cannula 13, and the arc-shaped grooves 4231 on the two contact plates 423 are located on the side where the two contact plates 423 are close to each other.

[0057] Example 3

[0058] like Figures 1-11 As shown, based on 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 outside of 4211 is fixedly connected with a positioning column 443 that can be inserted into the receiving groove 4211. The end 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 noted 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 cam 443 is used to move the two hinged plates 421 so that they can move relative to each other and the cam 444 is moved relative to the other hinged plates 421. The cam 443 is used to move the two hinged plates 421 so that they can move relative to each other and the cam 444 is moved relative to the other hinged plates 421.

[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 one end of the receiving shaft 4412 is fixedly sleeved with a coil spring 4413. 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 on the other hinged plate 421 from the back 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 its 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 provided in the fixing seat 52, a liquid injection port connected to the liquid storage chamber 521 is provided on the top of the fixing seat 52, and a blocking cover for blocking the liquid injection port is provided on the fixing seat 52. A liquid spray cover 6 is fixedly installed on one side of the fixing seat 52 and above the hanging plate 53. The liquid spray cover 6 is sleeved on the outside of the hanging plate 53. The longitudinal section of the liquid spray cover 6 is in the shape of an inverted Chinese character. A liquid passage chamber 61 is provided in the liquid spray cover 6. A plurality of nozzles 62 are fixedly installed on the inner walls of both sides of the liquid spray cover 6. The plurality of nozzles 62 are all connected to the inside of the liquid passage chamber 61. The middle position of the inner top wall of the liquid spray cover 6 is fixed. A liquid outlet pipe 63 is installed that is connected to the interior of the liquid passage cavity 61. A plurality of nozzles 64 are fixedly installed on the inner top wall of the liquid spray cover 6 and located outside the liquid outlet pipe 63, all of which are connected to the interior of the liquid passage cavity 61. A liquid pump 522 that is connected to the inner bottom wall of the liquid storage cavity 521 is fixedly installed on the fixed seat 52. A liquid inlet pipe that is connected to the interior of the liquid passage cavity 61 is fixedly installed on the top of the liquid spray cover 6 and located on both sides of the liquid outlet pipe 63. The liquid outlet end of the liquid pump 522 is connected to the two liquid inlet pipes through the liquid passage pipe. By setting the design of the liquid storage cavity 521, the liquid pump 522 and the liquid spray cover 6, the cleaning liquid is poured into the liquid storage cavity 5 through the liquid injection port. 21 is stored. When the endoscope body is hung and stored, the electric push rod 35 is controlled to make the two guide plates 32 slide along the outside of the two guide shells 31 respectively, thereby driving the two connecting blocks 33 to move upward to the outside of the lens 12, and the limit block 34 contacts the liquid outlet pipe 63, so that the liquid outlet pipe 63 is connected with the limit hole 342. The liquid pump 522 is controlled to extract the cleaning liquid stored in the liquid storage chamber 521, thereby transporting it to the liquid passage chamber 61, and part of the disinfectant is sprayed outward through the multiple nozzles 1 62 and the multiple nozzles 2 64 to rinse the disinfectant on the outside of the cannula 13, and at the same time, the limit plate 2, the latex block 22, the limit guide assembly 3 and The outside of the positioning mechanism 4 is flushed with disinfectant. In addition, part of the disinfectant flows out through the liquid outlet pipe 63, and then flows onto the protective lens through the limiting hole 342. The cleaning liquid flows along the outside of the cannula 13, flows downward from the gap between the latex block 22 and the cannula 13 and the gap between the inner wall of the perforation 21 and the cannula 13, and then flows downward from the gap between the adjacent protrusions 4233 on the two arc-shaped rubber pads 4232, thereby achieving the effect of flushing the outside of the cannula 13 with disinfectant. When the medical staff uses it next time, they only need to wipe and disinfect the contact position between the protrusion 4233 and the cannula 13, so as to facilitate the next use.

[0062] In this embodiment, a waste liquid chamber 523 is provided in the fixing seat 52 and below the liquid storage chamber 521. A drain valve connected to the inner bottom wall of the waste liquid chamber 523 is fixedly installed on the fixing seat 52. A liquid receiving plate 7 is fixedly installed on the side of the fixing seat 52 close to the hanging plate 53 and below the spray cover 6. A liquid receiving groove 71 is provided on the top of the liquid receiving plate 7. The inner bottom wall of the liquid receiving groove 71 is inclined downward along the direction of the fixing seat 52. A liquid guide hole 524 connected to the inside of the waste liquid chamber 523 is provided on the side of the fixing seat 52 close to the liquid receiving plate 7. The liquid guide hole 524 is located on the inner side of the liquid receiving groove 71 and is located on the same inclined surface as the inner bottom wall of the liquid guide hole 524 and the inner bottom wall of the liquid receiving groove 71. The fixing seat 52 is close to one side of the hanging plate 53. The side of the liquid spray cover 6 is hinged with a liquid blocking cover 8 that is sleeved on the outside of the liquid spray cover 6. The liquid blocking cover 8 is located just above the liquid receiving groove 71. Through the design of the waste liquid chamber 523 and the liquid receiving plate 7, the waste liquid generated after the disinfectant sprayed from the liquid spray cover 6 flushes the endoscope body can flow into the liquid receiving groove 71, and then flow into the waste liquid chamber 523 through the liquid guide hole 524, thereby achieving the effect of collecting the waste disinfectant liquid, which is beneficial to the treatment of the waste disinfectant liquid. Through the design of the liquid blocking cover 8, when flushing the endoscope body, the liquid blocking cover 8 is rotated on the fixed seat 52, so that the liquid blocking cover 8 is sleeved on the outside of the endoscope body, thereby effectively preventing the disinfectant from splashing out when flushing the endoscope body with disinfectant.

[0063] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0064] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A low-loss oral endoscope, characterized by: include: The endoscope body includes an intubation tube, one end of which is provided with a lens, and the other end of the intubation tube is fixedly connected to a handle; A limit plate is provided with a perforation in the middle thereof, and the limit plate is movably sleeved on the outside of the cannula through the perforation. 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 limit guide assembly is installed on the side of the limit plate away from the handle, and is used to limit the cannula 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 a hinge frame symmetrically fixedly installed on the side of the limit plate away from the latex block. The hinge frame is hinged with a positioning plate through a hinge shaft. The free ends of the two positioning plates can both conflict with the outer side wall of the intubation tube. The hinge frame is equipped with an adjustment component for driving the hinge 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 bound for use, 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 intubation tube. The endoscope body can be vertically hung upside down on the placement component through the 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 shell is away from the limit plate and is movably penetrated by the guide plate at one end. An electric push rod for driving the guide plate to slide along the guide shell is fixedly installed in the guide shell. The guide plate extends to the end of the guide shell that is fixedly connected to the connecting block. The limit block is rotatably installed between the two connecting blocks through a rotating shaft. A limit hole for the endoscope body to pass through is provided 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 cannula and the inner wall of the limit hole fits together. A groove is provided 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 1 fixedly connected to the hinge shaft on the same axis. A worm gear 1 meshing with the worm gear 1 is rotatably mounted on the hinge frame. The two worm gears 1 are coaxially fixedly connected 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 limit plate, and the placing assembly includes a movable base, a fixed seat is installed at the top height of the base, and a hanging plate is fixedly installed on one side of the fixed seat. The longitudinal section of the hanging plate is L-shaped, and one end of the hanging plate in the horizontal direction is the same width as the limit plate and is fixedly connected to the fixed seat, and one end in the vertical direction extends to above the horizontal end. An accommodating hole is provided in the middle position of the end of the hanging plate away from the fixed seat. The hanging plate can movably pass through between the adjusting column and the limit 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 a hinged plate hinged on the hinge frame through a hinge shaft 1, the free end of the hinged plate is hinged to a contact plate through a hinge shaft 2, a worm gear 2 is coaxially fixed to the hinge shaft 2, a worm gear 2 is rotatably mounted on the hinged 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 to the inner concave surface of the arc-shaped rubber pad in an equidistant array, and the constraint component is connected to the two hinged plates.

6. The low-loss oral endoscope according to claim 5, characterized in that: The hinge plate is provided with a receiving groove at one end away from the hinge frame, and the contact plate can be hidden in the receiving groove. One of the hinge plates is provided with an receiving cavity connected to the receiving groove. The restraining component includes a connecting seat installed in the receiving cavity, and an elastic strap is installed on the connecting seat. One end of the elastic strap extends to the outside of the receiving groove and is fixedly connected to a positioning column that can be inserted into the receiving groove. The end of the contact plate and the two ends of the arc-shaped groove are fixedly installed with a clamping block. 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 endoscope according to claim 6, characterized in that: The connecting seat includes a bracket fixedly installed in the accommodating cavity, a storage shaft is rotatably installed on the bracket, 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 top of the liquid storage tank is fixed with a plurality of nozzles, and the nozzles are connected to the nozzle of the nozzle. The nozzles are connected to the nozzle of the nozzle. The nozzles are connected to the nozzle of the nozzle. The liquid pump is fixedly installed on the fixed seat and is connected to the bottom wall of the liquid storage chamber. The top of the liquid storage chamber is fixed with a liquid inlet pipe connected to the interior of the liquid chamber on both sides of the liquid outlet pipe. The liquid outlet end of the liquid pump is connected to the two liquid inlet pipes through the liquid outlet pipe.

9. The low-loss oral endoscope according to claim 8, characterized in that: A waste liquid chamber is provided in the fixed seat and below the liquid storage chamber, a drain valve connected to the bottom wall of the waste liquid chamber is fixedly installed on the fixed seat, a liquid receiving plate is fixedly installed on the 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 chamber 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.

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

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