CN116746871B

CN116746871B - Endoscopic inspection device

Info

Publication number: CN116746871B
Application number: CN202310785030.7A
Authority: CN
Inventors: 吴翠翠; 王胜高; 张雪琦; 吴志坚; 刘丽
Original assignee: Beihua University
Current assignee: Beihua University
Priority date: 2023-06-29
Filing date: 2023-06-29
Publication date: 2023-12-19
Anticipated expiration: 2043-06-29
Also published as: CN116746871A

Abstract

The invention relates to the technical field of endoscopic examination, in particular to an endoscopic examination device which comprises a detection host, wherein an insertion tube is fixed on one side of the detection host, the end part of the insertion tube is fixedly connected with an endoscopic detection head, and a bite block is sleeved on the outer side of the insertion tube; a sleeve is fixedly inserted into the tooth pad, and the sleeve is sleeved on the outer side of the insertion tube; an outer baffle is sleeved on the outer wall of the sleeve in a sliding manner, a pull plate is fixedly sleeved at the end part of the sleeve, and a first spring is jointly fixed between the pull plate and the outer baffle; according to the invention, the saliva in the liquid discharge groove can be actively sucked by starting the suction mechanism, so that the phenomenon that the saliva is accumulated in the oral cavity to cause suffocation and nausea of a patient and the condition that the endoscopic examination needs to be stopped is avoided, on one hand, the safety of the patient in the intubation process is guaranteed, and on the other hand, the normal operation of the endoscopic examination is guaranteed.

Description

Endoscopic inspection device

Technical Field

The invention relates to the field of endoscopic examination, in particular to an endoscopic examination device.

Background

Endoscopes are detection instruments that integrate traditional optics, ergonomics, precision machinery, modern electronics, mathematics, software, and the like. An optical lens, light source illumination, mechanical device, etc. with an image sensor, it can be passed into the stomach through the mouth or into the body through other natural tunnels. Lesions that cannot be visualized by X-rays can be seen with an endoscope.

In the prior art, an invention patent related to endoscopic examination is partially disclosed, and a Chinese patent with application number of 01811903.4 discloses an endoscope device, which comprises: a housing, an elongated lens tube having one end secured to the housing, the lens tube being adapted for insertion into a body cavity, a tube lens assembly contained within the lens tube, the image from the free end of the lens tube being optically relayed to the housing, a housing lens assembly receiving the image from the lens tube.

In the process of checking intestinal cancer and other diseases, an endoscope is required to be inserted into the body of a patient from the mouth of the patient to check, and in the checking process, the patient can feel the phenomenon of retching or running water and the like under the stimulation effect of an endoscope pipeline, on one hand, saliva directly flows out to pollute clothes of the patient, on the other hand, excessive saliva is generated and accumulated in the oral cavity, and is not discharged in time, symptoms such as breath holding, nausea and the like can be generated, so that doctors are influenced to continue to carry out endoscopic checking.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides an endoscopic examination device.

In order to achieve the above purpose, the invention adopts the following technical scheme: an endoscopic examination device comprises a detection host, wherein one side of the detection host is fixedly provided with a cannula, the end part of the cannula is fixedly connected with an endoscopic detection head, and the outer side of the cannula is sleeved with a bite block;

a sleeve is fixedly inserted into the tooth pad, and the sleeve is sleeved on the outer side of the insertion tube;

an outer baffle is sleeved on the outer wall of the sleeve in a sliding manner, a pull plate is fixedly sleeved at the end part of the sleeve, and a first spring is jointly fixed between the pull plate and the outer baffle;

a liquid discharge groove is formed in one side, close to the bite-block, of the outer baffle plate, and a sealing pad is fixed at the notch of the liquid discharge groove;

a liquid discharge hole is formed in the side wall of the liquid discharge groove, a liquid discharge hose is fixed on the outer wall of the outer baffle plate, and a suction mechanism is arranged at one end, far away from the outer baffle plate, of the liquid discharge hose; during operation, in the process of checking intestinal cancer and other diseases, an endoscope is required to be inserted into the body of a patient from the mouth of the patient to check, in the process of checking, under the stimulation action of an endoscope pipeline, the patient can feel retching or running water and other phenomena, on one hand, saliva directly flows out to pollute clothes of the patient, on the other hand, excessive saliva is accumulated in the oral cavity and is not discharged in time, symptoms such as breath holding, nausea and the like can be generated, and a doctor is influenced to continue to perform endoscopic checking.

Before intubation, a patient is required to loosen the collar buckle and the waistband and lie on the examination bed on one side, saliva of the patient flows to the liquid discharge hole position in the liquid discharge groove in the intubation process, and the saliva in the liquid discharge groove can be actively sucked by starting the suction mechanism, so that the phenomenon that the saliva is accumulated in the oral cavity to cause suffocating and nausea of the patient and the condition that the endoscopic examination is required to be stopped is avoided, on one hand, the safety of the patient in the intubation process is guaranteed, and on the other hand, the normal operation of the endoscopic examination is guaranteed;

in the examination process, the endoscope detection head is used for collecting images of the inner part of the intestinal tract of a patient and displaying the images on the display screen of the detection host, so that a doctor can observe the lesion position in the patient.

Preferably, the suction mechanism comprises a collecting cylinder, a suction pump is fixed on the top surface of the collecting cylinder, the water outlet end of the suction pump is fixedly communicated with the inside of the collecting cylinder through a conduit, and the water inlet end of the suction pump is fixedly communicated with the liquid discharge hose; during operation, start the suction pump, the suction pump is inside through the saliva suction collecting vessel of flowing back hose inside with flowing back inslot directly, through quick suction saliva, is favorable to avoiding saliva to pile up in the oral cavity inside for a long time, leads to the patient to appear holding breath, the condition emergence of the symptom of nausea.

Preferably, an installation cavity is formed in the tooth pad, a through groove is formed in the top surface of the installation cavity, a pressing block is vertically inserted in the through groove in a sliding manner, an inclined surface is formed in the side wall of the pressing block, an elastic supporting mechanism for elastically supporting the pressing block is arranged on the bottom surface of the pressing block, a rack is fixed on the bottom surface of the pressing block, a rotating pipe is rotatably connected in the installation cavity, a gear is fixedly sleeved on the outer wall of the rotating pipe, the gear is meshed with the rack, two ends of the rotating pipe penetrate through the installation cavity and extend out, an absorbing pipe is fixedly communicated with the rear end of the rotating pipe, a fixed pipe is fixedly communicated with the front end of the rotating pipe, an elastic butt joint mechanism is arranged on the surface of the fixed pipe, and the elastic butt joint mechanism is used for butt-joint and communication of the fixed pipe and the liquid draining hole when the pressing block moves downwards; when the saliva in the oral cavity is required to be directly sucked by a patient, the patient can actively adjust the front and back positions of an upper tooth bed and a lower tooth bed, push the inclined plane of the pressing block through teeth to enable the pressing block to move downwards, so that the pressing block drives the rack to move downwards, the gear is driven to rotate through the rack, the gear drives the rotating tube to rotate, and the fixed tube is in butt joint communication with the liquid discharging hole through the elastic butt joint mechanism, so that the sucking mechanism can directly suck saliva in the oral cavity of the patient through the fixed tube, the rotating tube and the sucking tube, and avoid the situation that the saliva is difficult to flow to the liquid discharging groove in time and causes discomfort of the patient because the saliva is contained in the oral cavity for a long time;

after the saliva in the oral cavity of the patient is sucked, the teeth of the patient move to be separated from the pressing block, the pressing block can move upwards to reset under the pushing action of the elastic supporting mechanism, the fixing tube is separated from the liquid draining hole again, and the condition that the sucking tube is sucked in the mouth for a long time to cause discomfort of the patient is avoided.

Preferably, the elastic supporting mechanism comprises a supporting plate, the supporting plate is fixed on the inner wall of the mounting cavity, a gas spring is fixed on the bottom surface of the supporting plate, and the movable end of the gas spring penetrates through the supporting plate and then is fixed with the bottom surface of the pressing block; when the device works, after saliva in the oral cavity of a patient is sucked, teeth of the patient move to be separated from the pressing block, and the pressing block can be pushed to move upwards to reset under the pushing of the elastic force of the gas spring, and the pressing block is elastically supported, so that the next downward pushing is facilitated.

Preferably, the elastic butt joint mechanism comprises a movable pipe and a first limiting ring, the first limiting ring is fixed at the end part of the fixed pipe, the movable pipe is sleeved outside the fixed pipe, a second limiting ring is fixed on the inner wall of the movable pipe, a second spring is jointly fixed between the first limiting ring and the second limiting ring, and a sealing air cushion is sleeved on the outer wall of one end of the movable pipe, which is far away from the second limiting ring; when the movable pipe is communicated with the liquid discharge hole, the gap between the movable pipe and the inner wall of the liquid discharge groove is sealed through the sealing air cushion, so that the butt joint function is finished;

and the transverse length of the liquid discharge hole is larger than the hole at the end part of the fixed pipe, so that the liquid discharge hole can still be in butt joint with the hole on the fixed pipe after the position of the fixed pipe is changed after the distance between the tooth pad and the outer baffle is adjusted.

Preferably, an extension pipe is sleeved outside the suction pipe, a guide pin is fixed on the outer wall of the extension pipe, a guide groove is formed in the side wall of the bite block, and the end part of the guide pin is inserted into the guide groove; when the saliva sucking pipe is required to suck the saliva in the oral cavity of a patient, the rotating pipe drives the sucking pipe to rotate, the extending pipe rotates along with the sucking pipe, and the guide pin on the extending pipe slides in the guide groove, and under the guide effect of the guide groove, the extending pipe gradually extends to the side far away from the rotating pipe in the rotating process, so that the overall length of the sucking pipe and the extending pipe is increased, and the saliva in the oral cavity of the patient is conveniently sucked;

after the saliva in the oral cavity of the patient is sucked, the rotary tube drives the suction tube and the extension tube to rotate and reset, and under the guiding action of the guiding groove, the extension tube gradually contracts to one side close to the rotary tube in the rotating process, so that the whole length of the suction tube and the extension tube is reduced, and the influence on the insertion and the extraction of the bite-block due to the overlong whole length is avoided.

Preferably, a first guide roller and a second guide roller are vertically arranged in the sleeve, the second guide roller is arranged below the first guide roller, the second guide roller is rotationally connected to the inner wall of the sleeve, two ends of a rotating shaft of the first guide roller are rotationally connected with sliding blocks, sliding grooves corresponding to the sliding blocks are formed in the inner wall of the sleeve, the sliding blocks are vertically and slidingly connected in the sliding grooves, and a third spring is jointly fixed between the sliding blocks and the inner top surface of each sliding groove; during operation, as the inner diameter of the inner hole of the sleeve is larger than the outer diameter of the cannula in the endoscopic process, the cannula can swing randomly in the moving process, and discomfort is caused to the patient.

Preferably, ratchet wheels are coaxially fixed at two ends of a rotating shaft of the first guide roller, connecting frames are fixed on two sliding blocks, one-way limiting mechanisms are arranged on the two connecting frames, each one-way limiting mechanism comprises a supporting column, the supporting columns are fixed on the outer wall of the connecting frame, a blocking plate is rotationally connected to the surface of each supporting column, a torsion spring is sleeved on each supporting column, one end of each torsion spring is fixed on the corresponding connecting frame, the other end of each torsion spring is fixed on the corresponding blocking plate, a push rod is vertically and slidably connected to the corresponding connecting frame, the push rod is arranged above the corresponding blocking plate, a pushing mechanism is arranged above the corresponding push rod, and the pushing mechanism is used for downwards extruding the corresponding push rod in the pressing process of the corresponding pressing block, so that the end of each blocking plate is in contact with the corresponding ratchet wheel; when the device works, in the process that a patient pushes the pressing block to descend through teeth, the situation that the cannula slides out of the mouth of the patient possibly occurs, so that the endoscopic examination of a doctor is influenced;

when the patient pushes the pressing block to descend through the teeth, the pushing mechanism synchronously pushes the pushing rod downwards, the pushing rod downwards pushes the blocking plate, the end part of the blocking plate can be in contact with the ratchet on the ratchet, unidirectional limiting is carried out on the ratchet, the ratchet is matched with the blocking plate, reverse rotation of the ratchet is prevented, reverse rotation of the first guide roller is prevented, the insertion tube can be prevented from sliding outwards of the mouth of the patient under the action of friction force between the first guide roller and the insertion tube, and further influence on endoscopic examination of a doctor is avoided.

Preferably, the pushing mechanism comprises a first extrusion plate, the top end of the first extrusion plate is fixed on the bottom surface of the pressing block, a plurality of fourth springs are fixed at the bottom end of the first extrusion plate, a second extrusion plate is jointly fixed at the bottom of the fourth springs, and the second extrusion plate is arranged above the push rod; during operation, when the pressing block moves downwards, the pressing block drives the first pressing plate, the fourth spring and the second pressing plate to synchronously move downwards, the push rod is pressed downwards, the blocking plate is pressed downwards through the push rod to unidirectionally limit the ratchet wheel, the pushing function is completed, and when the pressing block just descends, the second pressing plate can contact with the push rod in advance and press the push rod downwards, the ratchet wheel and the cannula are limited in advance, and the pressing block gradually moves downwards along with the action of elasticity of the fourth spring, the second pressing plate can be gradually pressed, and the limiting function is completed.

Compared with the prior art, the invention has the following beneficial effects:

1. before carrying out the endoscopic examination, through pulling the bite-block for the bite-block is kept away from outer baffle, then, in inserting patient's mouth with the bite-block, let the patient bite the bite-block after, relax outer baffle, under the elasticity effect of first spring, the sealed pad on the outer baffle can with patient's facial skin in close contact with, thereby seals patient's mouth outside, avoids in the intubate in-process, the condition emergence of saliva outflow.

2. Before the intubate, need the patient to loosen collarband and waistband, lie on one's side and lie in the inspection bed, at intubate in-process, patient's saliva can flow to the inside flowing back hole position of drain groove, through starting suction means, can initiatively absorb the inside saliva of flowing back groove, avoid the saliva to pile up in the oral cavity inside, lead to the patient to appear holding down, the symptom of nausea, lead to the condition that needs to stop the endoscopic examination to take place, on the one hand, be favorable to guaranteeing patient's security at intubate in-process, on the other hand, be favorable to guaranteeing the normal clear of endoscopic examination.

3. When the patient needs to directly absorb saliva in the oral cavity, the patient can actively adjust the front and back positions of the upper and lower gum, push the inclined plane of the pressing block through the teeth, so that the pressing block moves downwards, drive the rack to move downwards through the pressing block, drive the gear to rotate through the rack, drive the rotating tube to rotate through the gear, and enable the fixing tube to be in butt joint communication with the liquid discharge hole through the elastic butt joint mechanism, so that the absorbing mechanism can directly absorb saliva in the oral cavity of the patient through the fixing tube, the rotating tube and the absorbing tube, saliva is prevented from being contained in the oral cavity for a long time, and difficult to flow to the liquid discharge groove in time, so that the patient feels uncomfortable.

4. When the patient pushes the pressing block to descend through the teeth, the pushing mechanism synchronously pushes the pushing rod downwards, the pushing rod downwards pushes the blocking plate, the end part of the blocking plate can be in contact with the ratchet on the ratchet, unidirectional limiting is carried out on the ratchet, the ratchet is matched with the blocking plate, reverse rotation of the ratchet is prevented, reverse rotation of the first guide roller is prevented, the insertion tube can be prevented from sliding outwards of the mouth of the patient under the action of friction force between the first guide roller and the insertion tube, and further influence on endoscopic examination of a doctor is avoided.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is an enlarged schematic view of the structure of FIG. 1 according to the present invention;

FIG. 3 is a schematic view of the overall structure of the bite block and outer baffle of the present invention;

FIG. 4 is a schematic view of the overall cross-sectional structure of the bite block and outer shield of the present invention;

FIG. 5 is an enlarged schematic view of the structure of FIG. 4 according to the present invention;

FIG. 6 is a schematic diagram showing the overall cross-sectional structure of the bite block and outer shield of the present invention;

FIG. 7 is an enlarged schematic view of the structure of FIG. 6 according to the present invention;

FIG. 8 is a schematic view of the overall cross-sectional structure of the bite block and outer baffle of the present invention;

FIG. 9 is an enlarged schematic view of the structure of FIG. 8 according to the present invention;

FIG. 10 is a schematic view of the overall cross-sectional structure of the bite block and outer shield of the present invention;

FIG. 11 is an enlarged schematic view of the structure of FIG. 10 according to the present invention;

FIG. 12 is a schematic view of a press block, a first compression plate, a fourth spring, and a second compression plate of the present invention;

FIG. 13 is a schematic view showing the structure of the blocking plate and ratchet wheel after being pressed down.

In the figure: 1. detecting a host; 2. a cannula; 3. an endoscope detection head; 4. a bite-block; 5. a sleeve; 6. an outer baffle; 7. pulling a plate; 8. a first spring; 9. a liquid discharge tank; 10. a sealing gasket; 11. a liquid discharge hole; 12. a drain hose; 13. a collection cylinder; 14. a suction pump; 15. a mounting cavity; 16. a through groove; 17. pressing the blocks; 18. a rack; 19. a rotary tube; 20. a gear; 21. a suction pipe; 22. a fixed tube; 23. a support plate; 24. a gas spring; 25. a movable tube; 26. a first stop collar; 27. a second limiting ring; 28. a second spring; 29. sealing the air cushion; 30. an extension tube; 31. a guide pin; 32. a guide groove; 33. a first guide roller; 34. a second guide roller; 35. a slide block; 36. a chute; 37. a third spring; 38. a ratchet wheel; 39. a connecting frame; 40. a support column; 41. a blocking plate; 42. a torsion spring; 43. a push rod; 44. a first pressing plate; 45. a fourth spring; 46. and a second pressing plate.

Description of the embodiments

The following description is presented to enable one of ordinary skill in the art to make and use the invention. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art.

The endoscopic examination device as shown in fig. 1 to 13 comprises a detection host 1, wherein a cannula 2 is fixed on one side of the detection host 1, an endoscopic detection head 3 is fixedly connected to the end part of the cannula 2, and a bite block 4 is sleeved on the outer side of the cannula 2;

a sleeve 5 is fixedly inserted into the bite-block 4, and the sleeve 5 is sleeved on the outer side of the cannula 2;

an outer baffle 6 is sleeved on the outer wall of the sleeve 5 in a sliding manner, a pull plate 7 is fixedly sleeved at the end part of the sleeve 5, and a first spring 8 is jointly fixed between the pull plate 7 and the outer baffle 6;

a liquid discharge groove 9 is formed in one side, close to the bite-block 4, of the outer baffle 6, and a sealing pad 10 is fixed at the notch position of the liquid discharge groove 9;

a liquid discharge hole 11 is formed in the side wall of the liquid discharge groove 9, a liquid discharge hose 12 is fixed on the outer wall of the outer baffle plate 6, and a suction mechanism is arranged at one end, far away from the outer baffle plate 6, of the liquid discharge hose 12; during operation, in the process of checking intestinal cancer and other diseases, an endoscope is required to be inserted into the body of a patient from the mouth of the patient to check, during the checking, under the stimulation action of an endoscope pipeline, the patient can feel retching or running water and other phenomena, on one hand, saliva directly flows out to pollute clothes of the patient, on the other hand, excessive saliva is accumulated in the oral cavity and is not discharged in time, symptoms such as breath holding, nausea and the like can be generated, and a doctor is influenced to continue to perform endoscopic checking, the embodiment of the invention can solve the problems, and the specific working mode is that before the endoscopic checking is performed, the tooth pad 4 is pulled to enable the tooth pad 4 to be far away from the outer baffle 6, then the tooth pad 4 is plugged into the mouth of the patient, after the patient bites the tooth pad 4, the outer baffle 6 is loosened, and under the elastic action of the first spring 8, the sealing pad 10 on the outer baffle 6 can be tightly contacted with the facial skin of the patient, so that the outer side of the mouth of the patient is sealed, and the occurrence of saliva flowing out in the process of the patient is avoided;

before the intubation tube 2, a patient is required to loosen the collar buckle and the waistband, lie on the examination bed on the side, in the intubation tube 2 process, saliva of the patient flows to the liquid discharge hole 11 in the liquid discharge groove 9, saliva in the liquid discharge groove 9 can be actively sucked by starting the suction mechanism, the phenomenon that the saliva is accumulated in the oral cavity, so that the patient is suffocated and nausea symptoms are caused, and the condition that the endoscopic examination is required to be stopped is avoided, so that on one hand, the safety of the patient in the intubation tube 2 process is guaranteed, and on the other hand, the normal operation of the endoscopic examination is guaranteed;

during the examination, the endoscope detection head 3 is used for collecting the picture inside the intestinal tract of the patient and displaying the picture on the display screen of the detection host 1, so that a doctor can observe the lesion position in the patient.

As a further embodiment of the invention, the suction mechanism comprises a collecting cylinder 13, a suction pump 14 is fixed on the top surface of the collecting cylinder 13, the water outlet end of the suction pump 14 is fixedly communicated with the inside of the collecting cylinder 13 through a conduit, and the water inlet end of the suction pump 14 is fixedly communicated with a liquid discharge hose 12; during operation, start suction pump 14, suction pump 14 is inside through inside the saliva suction collection cylinder 13 of flowing back hose 12 inside with flowing back groove 9 directly, through quick saliva suction, is favorable to avoiding the long-time accumulation of saliva in the oral cavity inside, leads to the patient to appear the condition emergence of the symptom of holding breath, nausea.

As a further embodiment of the present invention, the inside of the dental pad 4 is provided with a mounting cavity 15, the top surface of the mounting cavity 15 is provided with a through groove 16, the inside of the through groove 16 is vertically inserted with a pressing block 17 in a sliding manner, the side wall of the pressing block 17 is provided with an inclined plane, the bottom surface of the pressing block 17 is provided with an elastic supporting mechanism for elastically supporting the pressing block 17, the bottom surface of the pressing block 17 is fixedly provided with a rack 18, the inside of the mounting cavity 15 is rotationally connected with a rotating pipe 19, the outer wall of the rotating pipe 19 is fixedly sleeved with a gear 20, the gear 20 is meshed with the rack 18, both ends of the rotating pipe 19 penetrate through the mounting cavity 15 and extend out, the rear end of the rotating pipe 19 is fixedly communicated with a suction pipe 21, the front end of the rotating pipe 19 is fixedly communicated with a fixed pipe 22, and the surface of the fixed pipe 22 is provided with an elastic abutting mechanism for abutting and communicating the fixed pipe 22 with a liquid discharging hole 11 when the pressing block 17 moves downwards; when the saliva in the oral cavity is required to be directly sucked by a patient, the patient can actively adjust the front and back positions of upper and lower teethridges, the inclined surface of the pressing block 17 is pushed by teeth, so that the pressing block 17 moves downwards, the rack 18 is driven to move downwards, the gear 20 is driven to rotate by the rack 18, the rotating tube 19 is driven to rotate by the gear 20, and the fixed tube 22 is in butt joint communication with the liquid discharging hole 11 by the elastic butt joint mechanism, so that the sucking mechanism can directly suck the saliva in the oral cavity of the patient by the fixed tube 22, the rotating tube 19 and the sucking tube 21, thereby avoiding the situation that the saliva is difficult to flow to the liquid discharging groove 9 in time and the patient feels uncomfortable;

after the saliva in the oral cavity of the patient is sucked, the teeth of the patient move to be separated from the pressing block 17, the pressing block 17 can move upwards to reset under the pushing action of the elastic supporting mechanism, the fixing tube 22 is separated from the liquid discharging hole 11 again, and the condition that the sucking tube 21 sucks in the mouth for a long time to cause discomfort of the patient is avoided.

As a further embodiment of the present invention, the elastic supporting mechanism comprises a supporting plate 23, the supporting plate 23 is fixed on the inner wall of the installation cavity 15, a gas spring 24 is fixed on the bottom surface of the supporting plate 23, and the movable end of the gas spring 24 penetrates through the supporting plate 23 and then is fixed with the bottom surface of the pressing block 17; when the device works, after saliva in the oral cavity of a patient is sucked, teeth of the patient move to be separated from the pressing block 17, and the pressing block 17 can be pushed to move upwards to reset under the pushing of the elastic force of the gas spring 24, and the pressing block 17 is elastically supported, so that the device is convenient to push downwards next time.

As a further embodiment of the invention, the elastic butt joint mechanism comprises a movable pipe 25 and a first limiting ring 26, wherein the first limiting ring 26 is fixed at the end part of the fixed pipe 22, the movable pipe 25 is sleeved outside the fixed pipe 22, a second limiting ring 27 is fixed on the inner wall of the movable pipe 25, a second spring 28 is jointly fixed between the first limiting ring 26 and the second limiting ring 27, and a sealing air cushion 29 is sleeved on the outer wall of one end of the movable pipe 25 far away from the second limiting ring 27; in operation, since the two ends of the drain groove 9 have cambered surfaces, when the fixed pipe 22 rotates to a position communicated with the drain hole 11, the tightness between the end of the fixed pipe 22 and the inner wall of the drain groove 9 is difficult to ensure, and the embodiment of the invention can solve the problems;

and the lateral length of the liquid discharge hole 11 is larger than the hole at the end of the fixed pipe 22, so that after the distance between the tooth pad 4 and the outer baffle 6 is adjusted and the position of the fixed pipe 22 is changed, the liquid discharge hole 11 can still be in butt joint with the hole on the fixed pipe 22.

As a further embodiment of the present invention, the outer side of the suction pipe 21 is sleeved with an extension pipe 30, a guide pin 31 is fixed on the outer wall of the extension pipe 30, a guide groove 32 is formed on the side wall of the bite-block 4, and the end part of the guide pin 31 is inserted into the guide groove 32; when the suction pipe 21 is longer, the insertion and the extraction of the dental pad 4 are blocked, when the suction pipe 21 is shorter, saliva in the oral cavity of a patient is difficult to suck, the embodiment of the invention can solve the problems, and the specific working mode is that when the saliva in the oral cavity of the patient needs to be sucked, the suction pipe 21 is driven to rotate by the rotating pipe 19, the extending pipe 30 rotates along with the suction pipe 21, the guide pin 31 on the extending pipe 30 slides in the guide groove 32, and the extending pipe 30 gradually extends to one side far away from the rotating pipe 19 in the rotating process under the guide effect of the guide groove 32, so that the integral length of the suction pipe 21 and the extending pipe 30 is increased, and the saliva in the oral cavity of the patient is conveniently sucked;

after the saliva in the oral cavity of the patient is sucked, the rotary tube 19 drives the suction tube 21 and the extension tube 30 to rotate and reset, and under the guiding action of the guide groove 32, the extension tube 30 gradually contracts to one side close to the rotary tube 19 in the rotating process, so that the overall length of the suction tube 21 and the extension tube 30 is reduced, and the influence on the insertion and the extraction of the bite-block 4 due to the overlong overall length is avoided.

As a further embodiment of the present invention, a first guide roller 33 and a second guide roller 34 are vertically arranged inside the sleeve 5, the second guide roller 34 is arranged below the first guide roller 33, the second guide roller 34 is rotatably connected to the inner wall of the sleeve 5, both ends of the rotation shaft of the first guide roller 33 are rotatably connected with a sliding block 35, a sliding groove 36 corresponding to the sliding block 35 is arranged on the inner wall of the sleeve 5, the sliding block 35 is vertically and slidably connected inside the sliding groove 36, and a third spring 37 is commonly fixed between the sliding block 35 and the inner top surface of the sliding groove 36; in operation, in the endoscopic process, as the inner diameter of the inner hole of the sleeve 5 is larger than the outer diameter of the insertion tube 2, the insertion tube 2 swings randomly in the moving process, and the patient is uncomfortable, the embodiment of the invention can solve the problems.

As a further embodiment of the present invention, ratchet wheels 38 are coaxially fixed at both ends of the rotation shaft of the first guide roller 33, connecting frames 39 are fixed on both sliding blocks 35, unidirectional limiting mechanisms are arranged on both connecting frames 39, each unidirectional limiting mechanism comprises a supporting column 40, the supporting column 40 is fixed on the outer wall of the connecting frame 39, a blocking plate 41 is rotatably connected to the surface of the supporting column 40, a torsion spring 42 is sleeved on the supporting column 40, one end of the torsion spring 42 is fixed on the connecting frame 39, the other end of the torsion spring 42 is fixed on the blocking plate 41, a push rod 43 is vertically and slidably connected to the connecting frame 39, the push rod 43 is arranged above the blocking plate 41, a pushing mechanism is arranged above the push rod 43, and during the pressing of the pressing block 17, the pushing mechanism is used for downwards extruding the push rod 43 so that the end of the blocking plate 41 contacts with the ratchet wheels on the ratchet wheels 38; in operation, the embodiment of the present invention solves the above-mentioned problems by causing the sliding of the cannula 2 to the outside of the mouth of the patient during the descent of the pressing block 17 by the teeth of the patient, thereby affecting the endoscopic examination of the doctor, and the specific operation mode is that, during the insertion of the cannula 2, the cannula 2 can drive the first guide roller 33 and the ratchet 38 to rotate under the action of the friction force between the cannula 2 and the first guide roller 33;

when the patient pushes the pressing block 17 to descend through teeth, the pushing mechanism synchronously pushes the pushing rod 43 downwards, the pushing rod 43 pushes the blocking plate 41 downwards, the end part of the blocking plate 41 can be in contact with the ratchet on the ratchet 38, the ratchet 38 is limited in one direction, the ratchet 38 is prevented from rotating reversely through the cooperation of the ratchet 38 and the blocking plate 41, the first guide roller 33 is prevented from rotating reversely, the sliding of the cannula 2 outside the mouth of the patient can be prevented under the action of friction force between the first guide roller 33 and the cannula 2, and the influence on the endoscopic examination of doctors can be avoided.

As a further embodiment of the present invention, the pushing mechanism includes a first pressing plate 44, the top end of the first pressing plate 44 is fixed on the bottom surface of the pressing block 17, the bottom end of the first pressing plate 44 is fixed with a plurality of fourth springs 45, the bottoms of the fourth springs 45 are jointly fixed with a second pressing plate 46, and the second pressing plate 46 is disposed above the pushing rod 43; during operation, when the pressing block 17 moves downwards, the pressing block 17 drives the first pressing plate 44, the fourth spring 45 and the second pressing plate 46 to synchronously move downwards and press the push rod 43 downwards, the blocking plate 41 is pressed downwards through the push rod 43 to carry out unidirectional limiting on the ratchet 38, the pushing function is completed, and when the pressing block 17 just descends, the second pressing plate 46 can be contacted with the push rod 43 in advance and press the push rod 43 downwards, limiting on the ratchet 38 and the cannula 2 is carried out in advance, and the second pressing plate 46 can be pressed gradually under the elastic force of the fourth spring 45 along with gradual downward movement of the pressing block 17, so that the limiting function is completed.

The working principle of the invention is as follows:

before an endoscopic examination is carried out, the bite-block 4 is pulled to enable the bite-block 4 to be far away from the outer baffle 6, then the bite-block 4 is plugged into the mouth of a patient, after the patient bites the bite-block 4, the outer baffle 6 is loosened, under the elastic force of the first spring 8, the sealing pad 10 on the outer baffle 6 can be tightly contacted with the facial skin of the patient, so that the outer side of the mouth of the patient is sealed, and the condition that saliva flows out in the intubation 2 process is avoided;

The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention, which is defined by the appended claims.

Claims

1. The utility model provides an endoscopic examination device, includes detects host computer (1), one side of detecting host computer (1) is fixed with intubate (2), the tip fixedly connected with endoscope of intubate (2) detects head (3), its characterized in that: a bite block (4) is sleeved on the outer side of the insertion tube (2);

a sleeve (5) is fixedly inserted into the tooth pad (4), and the sleeve (5) is sleeved on the outer side of the insertion tube (2);

an outer baffle (6) is sleeved on the outer wall of the sleeve (5) in a sliding manner, a pull plate (7) is fixedly sleeved at the end part of the sleeve (5), and a first spring (8) is jointly fixed between the pull plate (7) and the outer baffle (6);

a liquid discharge groove (9) is formed in one side, close to the bite-block (4), of the outer baffle plate (6), and a sealing pad (10) is fixed at the notch position of the liquid discharge groove (9);

a liquid discharge hole (11) is formed in the side wall of the liquid discharge groove (9), a liquid discharge hose (12) is fixed on the outer wall of the outer baffle plate (6), and a suction mechanism is arranged at one end, far away from the outer baffle plate (6), of the liquid discharge hose (12);

the tooth pad is characterized in that an installation cavity (15) is formed in the tooth pad (4), a through groove (16) is formed in the top surface of the installation cavity (15), a pressing block (17) is vertically inserted in the through groove (16) in a sliding mode, an inclined surface is formed in the side wall of the pressing block (17), an elastic supporting mechanism used for elastically supporting the pressing block (17) is arranged on the bottom surface of the pressing block (17), a rack (18) is fixed on the bottom surface of the pressing block (17), a rotating pipe (19) is rotatably connected to the inside of the installation cavity (15), a gear (20) is fixedly sleeved on the outer wall of the rotating pipe (19), the gear (20) is meshed with the rack (18), two ends of the rotating pipe (19) penetrate through the installation cavity (15) and extend out, a suction pipe (21) is fixedly connected to the rear end of the rotating pipe (19), a fixing pipe (22) is fixedly connected to the front end of the rotating pipe (19), an elastic abutting mechanism is arranged on the surface of the fixing pipe (22), and when the elastic pipe (17) is fixedly connected to the abutting mechanism, and the elastic pipe (22) is fixedly connected to the liquid draining mechanism in a downward mode;

the elastic butt joint mechanism comprises a movable pipe (25) and a first limiting ring (26), the first limiting ring (26) is fixed at the end part of the fixed pipe (22), the movable pipe (25) is sleeved outside the fixed pipe (22), a second limiting ring (27) is fixed on the inner wall of the movable pipe (25), a second spring (28) is jointly fixed between the first limiting ring (26) and the second limiting ring (27), and a sealing air cushion (29) is sleeved on the outer wall of one end of the movable pipe (25), which is far away from the second limiting ring (27).

2. An endoscopic examination apparatus according to claim 1, wherein: the suction mechanism comprises a collecting cylinder (13), a suction pump (14) is fixed on the top surface of the collecting cylinder (13), the water outlet end of the suction pump (14) is fixedly communicated with the inside of the collecting cylinder (13) through a guide pipe, and the water inlet end of the suction pump (14) is fixedly communicated with the liquid discharge hose (12).

3. An endoscopic examination apparatus according to claim 1, wherein: the elastic supporting mechanism comprises a supporting plate (23), the supporting plate (23) is fixed on the inner wall of the mounting cavity (15), a gas spring (24) is fixed on the bottom surface of the supporting plate (23), and the movable end of the gas spring (24) penetrates through the supporting plate (23) and then is fixed with the bottom surface of the pressing block (17).

4. An endoscopic examination apparatus according to claim 1, wherein: the outside cover of suction tube (21) is equipped with extension tube (30), be fixed with guide pin (31) on the outer wall of extension tube (30), guide slot (32) have been seted up on the lateral wall of bite-block (4), the tip of guide pin (31) is inserted and is established inside guide slot (32).

5. An endoscopic examination apparatus according to claim 1, wherein: the inside of sleeve pipe (5) is vertical to be provided with first guide roller (33) and second guide roller (34), second guide roller (34) set up the below of first guide roller (33), second guide roller (34) rotate and connect on the inner wall of sleeve pipe (5), the axis of rotation both ends of first guide roller (33) all rotate and are connected with slider (35), spout (36) corresponding with slider (35) have been seted up to the inner wall of sleeve pipe (5), the inside of slider (35) vertical sliding connection at spout (36), slider (35) with be fixed with third spring (37) jointly between the interior top surface of spout (36).

6. An endoscopic examination apparatus according to claim 5, wherein: the ratchet mechanism is characterized in that ratchet wheels (38) are coaxially fixed at two ends of a rotating shaft of the first guide roller (33), connecting frames (39) are fixedly arranged on the sliding blocks (35), unidirectional limiting mechanisms are arranged on the connecting frames (39), each unidirectional limiting mechanism comprises a supporting column (40), each supporting column (40) is fixedly arranged on the outer wall of each connecting frame (39), a blocking plate (41) is rotatably connected to the surface of each supporting column (40), a torsion spring (42) is sleeved on each supporting column (40), one end of each torsion spring (42) is fixedly arranged on each connecting frame (39), the other end of each torsion spring (42) is fixedly arranged on each blocking plate (41), pushing rods (43) are vertically connected onto the corresponding connecting frames (39) in a sliding mode, each pushing rod (43) is arranged above each blocking plate (41), and each pushing mechanism is used for downwards extruding each pushing rod (43) in the pressing process of each pressing block (17) so that the end of each pushing rod (41) contacts with each ratchet wheel (38).

7. An endoscopic examination apparatus according to claim 6, wherein: the pushing mechanism comprises a first extrusion plate (44), the top end of the first extrusion plate (44) is fixed on the bottom surface of the pressing block (17), a plurality of fourth springs (45) are fixed at the bottom end of the first extrusion plate (44), a second extrusion plate (46) is jointly fixed at the bottom of the fourth springs (45), and the second extrusion plate (46) is arranged above the pushing rod (43).