Plastic auxiliary ventilation mask for endoscopy

Abstract

The invention relates to the technical field of medical instruments, in particular to a plastic auxiliary ventilation mask for endoscopy, which comprises a mask body, a T-shaped support is fixedly connected to the mask body, a first elastic bandage is arranged on the T-shaped support, and a first fixing ring and a second fixing ring are symmetrically and fixedly connected to the side wall of the mask body respectively; a second elastic bandage is arranged on the mask, one end of the second elastic bandage is fixedly connected with the first fixing ring, and the other end of the second elastic bandage penetrates through the second fixing ring and is detachably connected with the second fixing ring; the edge of the mask is provided with a shaping assembly used for automatically fitting the face of a patient when the mask is worn. A driving assembly is arranged in the second fixing ring; an air hole is formed in the mask, a catheter used for being inserted into an endoscope is arranged on the air hole, and a universal assembly is arranged in the air hole; a sealing assembly used for automatically opening and closing a channel in the catheter when the mask is used is arranged in the catheter. The auxiliary ventilation mask can be automatically attached to the face of a patient, and the problem that the attaching degree is poor is effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a plastic auxiliary ventilation mask for endoscopic examination. Background Art

[0002] During endoscopic examinations, assisted ventilation masks are crucial equipment for ensuring smooth breathing and maintaining smooth examinations. Currently, common endoscopic assisted ventilation masks, such as the King LT-D model, provide basic airway management functions and can maintain patient ventilation to a certain extent.

[0003] However, the existing King LT-D model of endoscopic auxiliary ventilation mask has certain shortcomings: the mask fits poorly to the patient's face and is difficult to adapt to the facial contours of different patients, resulting in gas leakage and affecting the ventilation effect; the existing mask also does not have the function of assisting the rotation of the endoscope, further limiting the flexibility and accuracy of endoscopic examinations.

[0004] In summary, how to solve the problem that the existing assisted ventilation mask has a poor fit with the patient's face, is difficult to adapt to the facial contours of different patients, causes gas leakage, and affects the ventilation effect has become a difficult problem that needs to be solved urgently in this field. Therefore, it is necessary to propose a plastic assisted ventilation mask for endoscopic examination. Summary of the Invention

[0005] In order to solve the above problems, the present invention provides a plastic auxiliary ventilation mask for endoscopic examination, which can automatically fit the patient's face and effectively solve the problem of poor fit.

[0006] In order to achieve the above-mentioned objectives, the technical solution of the present invention is as follows: A plastic auxiliary ventilation mask for endoscopic examination includes a mask, a T-shaped bracket is fixedly connected to the mask, the T-shaped bracket is provided with a first elastic strap for fixing the upper part of the mask, and a first fixing ring and a second fixing ring are symmetrically and respectively fixedly connected to the side wall of the mask; a second elastic strap is provided on the mask for fixing the lower part of the mask, one end of the second elastic strap is fixedly connected to the first fixing ring, and the other end of the second elastic strap passes through the second fixing ring and is detachably connected to the second fixing ring; a shaping component is provided on the edge of the mask for automatically fitting the patient's face when worn; a driving component is provided in the second fixing ring for providing power to the shaping component when pulling the second elastic strap; a folding bag mask is fixedly connected to the mask, and the folding bag mask is connected to the mask; an air hole is opened on the folding bag mask, and a catheter for inserting an endoscope is provided on the air hole, and the catheter is connected to the folding bag mask, and a universal component is provided in the air hole for driving the catheter to rotate; a sealing component is provided in the catheter for automatically opening and closing the channel in the catheter when the mask is used.

[0007] The technical principles of the above scheme are as follows:

[0008] When using this assisted ventilation mask, the first step is to secure the upper portion of the mask to the upper part of the patient's nose bridge by passing the first elastic strap through the T-shaped bracket. The second elastic strap is then passed through one end of the second fixing ring and detachably connected to the second fixing ring, thereby securing the lower portion of the mask. The position of the mask on the patient's face is preliminarily determined by adjusting the tightness of the second elastic strap. Adjusting the tightness of the second elastic strap drives the drive assembly, which in turn provides power to the shaping assembly, allowing it to closely conform to the patient's facial contours. This allows the mask to automatically fit the patient's face when the mask is worn.

[0009] When the endoscope is inserted into the catheter, the sealing assembly opens the catheter channel, allowing the endoscope to pass through. When the endoscope is withdrawn, the sealing assembly closes, sealing the channel within the catheter and preventing gas leakage and external contamination. Furthermore, when the doctor swings or rotates the endoscope during an endoscopic examination, the universal assembly allows the catheter to be freely adjusted within a 360° range and tilted in any direction, controlling the position and direction of the endoscope's front end and avoiding the blind spots caused by the fixed angle of traditional mask catheters.

[0010] The above scheme has the following beneficial effects:

[0011] 1. The present invention uses a linkage design between the shaping component and the driving component, which automatically fits the patient's facial contour when adjusting the second elastic strap. It can adapt to patients with different face shapes, improve the fit between the mask and the face, and effectively avoid gas leakage problems caused by poor fit. At the same time, the fit between the mask and the face can further improve the stability of the mask during endoscopic examination, and avoid the mask shaking on the patient's face due to the movement of the endoscope.

[0012] 2. The present invention sets a sealing component in the air hole tube, which can automatically open and close the channel according to the insertion and withdrawal of the endoscope, while allowing the endoscope to pass smoothly, preventing gas leakage and external contamination, which not only ensures the smooth progress of the inspection process, but also maintains a stable ventilation environment in the mask, thereby improving the ventilation effect and safety.

[0013] 3. The universal assembly of the present invention enables the catheter to achieve 360° free adjustment of angle and tilt in any direction. When performing endoscopic examination, the doctor can more flexibly control the position and direction of the front end of the endoscope, which can reduce the operational blind spots caused by the fixed angle of the traditional mask catheter to a certain extent, thereby improving the flexibility and accuracy of endoscopic examination.

[0014] Furthermore, the shaping component includes an annular airbag fixedly connected to the edge of the mask, and an air release tube is connected to the side wall of the annular airbag.

[0015] Beneficial effects: When the patient wears the mask, the annular airbag can adaptively expand and deform according to the patient's facial contour, further improving the fit accuracy between the mask and the patient's face and reducing the possibility of gas leakage; the deflation tube facilitates rapid deflation after the examination, making it easier to remove the mask and improving the operating efficiency of medical staff.

[0016] Furthermore, the driving assembly includes a thumbwheel rotatably engaged with the inner side of the second fixing ring, and a cavity opened in the side wall of the second fixing ring; the thumbwheel and the second elastic band are rolling engaged.

[0017] A piston cylinder is fixedly connected to the inner wall of the cavity, a piston is slidably fitted in the piston cylinder, a piston rod is fixedly connected to the piston, a crank is hinged at one end of the piston rod away from the piston, a wheel is eccentrically hinged at one end of the crank away from the piston rod, and the wheel and one end of the dial are coaxially fixedly connected.

[0018] An air inlet pipe and an air outlet pipe are connected on the side wall of the piston cylinder. Both the air inlet pipe and the air outlet pipe are connected with a one-way valve. The air inlet pipe is connected to the outside, and the air outlet pipe is connected to the annular air bag.

[0019] Beneficial effect: When the medical staff pulls the second elastic band to adjust the tightness of the second elastic band, the second elastic band and the dial wheel rotate, and the dial wheel rotates to make the piston move in the piston cylinder, so that the annular airbag can be inflated. The mechanical energy of the second elastic band tightness adjustment is converted into power to drive the annular airbag to inflate, realizing automatic operation without the need for an additional power source.

[0020] Furthermore, the universal assembly includes a spherical portion fixedly connected to one end of the conduit, the spherical portion is communicated with the conduit, and the spherical portion is spherically hinged to the inner wall of the air hole.

[0021] Beneficial effects: The ball-hinged design of the spherical part and the air hole enables the catheter to achieve flexible rotation in all directions without dead angles. Compared with traditional fixed-angle catheters, it broadens the operating range of the endoscope and significantly reduces the blind spots of operation.

[0022] Furthermore, the sealing assembly includes a chamber opened on the side wall of the conduit, and a bottom plate fixedly connected to the inner side wall of the conduit.

[0023] A first through hole is opened on the bottom plate; a turntable is rotatably fitted at the first through hole on one side wall of the bottom plate, a connecting rod is fixedly connected to the turntable, and the connecting rod passes through the inner wall of the conduit and extends into the chamber; a second through hole corresponding to the first through hole is opened on the turntable; a limiting groove is also circumferentially opened on the turntable.

[0024] A rack is slidably fitted on one side wall of the bottom plate, and one end of the rack is hinged to the connecting rod; a gear is meshed on the rack, and the gear rotates and fits on the inner wall of the chamber, and a rotating shaft is coaxially fixedly connected to the gear. The rotating shaft extends through the side wall of the chamber away from one end of the gear and extends into the conduit and is coaxially fixedly connected to a friction wheel.

[0025] A hexagonal slide groove is opened on one side wall of the bottom plate, and a number of triangular plates are circumferentially slidably fitted on the slide groove. The triangular plates are fixedly connected to a side wall away from the bottom plate, and the slide rods are slidably fitted with the adjacent limit grooves.

[0026] An auxiliary rotation component for assisting the endoscope to rotate is provided on each triangular plate.

[0027] Beneficial effects: When the endoscope is inserted into the catheter, the friction force generated by the contact between the friction wheel and the surface of the endoscope, the friction wheel rotates to drive the gear and rack transmission, and then the turntable rotates, and the triangular plate expands to open and connect the first through hole and the second through hole. When the endoscope is pulled out of the catheter, the friction wheel rotates in the opposite direction, and the triangular plate closes, so that the channel in the catheter is closed. This mechanism of automatically controlling the opening and closing of the catheter channel does not require manual operation, improves operational efficiency and sealing, and does not require electricity, and can be achieved by using the power of inserting and withdrawing the endoscope.

[0028] Furthermore, the auxiliary rotation assembly includes a hollow telescopic rod fixedly connected to the side wall of the triangle plate away from the bottom plate. The telescopic rod is equipped with a ball for rotation at one end away from the triangle plate. A spring is provided in the telescopic rod, and both ends of the spring are fixedly connected to the two ends of the telescopic rod.

[0029] Beneficial effect: When the endoscope is inserted, the side wall of the endoscope contacts the ball. When the doctor needs to rotate the endoscope, the ball can facilitate the rotation of the endoscope. The design of the ball converts sliding friction into rolling friction, greatly reducing the resistance of the endoscope during rotation.

[0030] Furthermore, the second elastic strap and the second fixing ring are detachably connected by one of Velcro, magnetism, snap fasteners, quick-release locks, safety pin structures, rotation locking mechanisms, elastic knot locking, and spring clips.

[0031] Beneficial effect: When the medical staff adjusts the tightness of the second elastic strap, the medical staff can quickly fix the mask through the detachable connection, thereby improving the efficiency of the medical staff.

[0032] Furthermore, oxygen inhalation channels are symmetrically provided on the side walls of the mask, and oxygen tubes are symmetrically and fixedly connected to the inner wall of the mask, and the oxygen tubes are all communicated with the oxygen inhalation channels adjacent thereto.

[0033] Beneficial effects: The inner oxygen tube of the mask can be directly inserted into the patient's nostrils to provide independent oxygen supply to the patient. The independent oxygen tube and the ventilation system of the mask do not interfere with each other, and can continuously provide stable oxygen support to the patient during endoscopic examination.

[0034] Furthermore, a silicone rubber layer is fixedly connected to the outer side walls of the friction wheel and the thumbwheel.

[0035] Beneficial effects: The silicone rubber layer has good elasticity and wear resistance, which can effectively increase the friction between the friction wheel and the endoscope surface, and between the dial wheel and the second elastic strap, ensuring the reliability and stability of the transmission.

[0036] Furthermore, the mask is connected to an exhaust pipe, and a thermoplastic material layer is fixedly connected to the outer wall of the annular airbag.

[0037] Beneficial effects: The exhaust pipe can promptly discharge the carbon dioxide exhaled by the patient in the mask, maintaining the air pressure in the mask stable. At the same time, the exhaust pipe can also be connected to a non-invasive ventilator when needed. In special circumstances, patients using a non-invasive ventilator can also use the mask of the present invention for bronchoscopy. The thermoplastic material can slightly soften and deform under the action of body temperature, further enhancing the fit between the annular airbag and the patient's face, forming a tight seal, and effectively reducing gas leakage.

[0038] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 This is an axonometric view of the moldable assisted ventilation mask for endoscopy of the present invention.

[0040] Figure 2 This is a front sectional isometric view of the second fixing ring in the plastic auxiliary ventilation mask for endoscopic examination of the present invention.

[0041] Figure 3 This is an axonometric view of a catheter in a moldable assisted ventilation mask for endoscopy according to the present invention.

[0042] Figure 4 This is a top sectional isometric view of a catheter in a plastic assisted ventilation mask for endoscopy according to the present invention.

[0043] Figure 5 This is a sectional upward view of the bottom plate of the plastic auxiliary ventilation mask for endoscopic examination of the present invention.

[0044] Figure 6 This is a top sectional view of a catheter in a plastic assisted ventilation mask for endoscopic examination according to the present invention.

[0045] Figure 7 for Figure 6 Enlarged view of part A.

[0046] The figure marks in the drawings of the specification include: 1. mask; 2. T-shaped bracket; 3. first elastic strap; 4. first fixing ring; 5. second fixing ring; 6. second elastic strap; 7. annular airbag; 8. dial; 9. piston cylinder; 10. piston rod; 11. crank; 12. wheel; 13. exhaust pipe; 14. air hole; 15. conduit; 16. spherical part; 17. bottom plate; 18. turntable; 19. connecting rod; 20. limiting groove; 21. rack; 22. rotating shaft; 23. friction wheel; 24. triangular plate; 25. sliding rod; 26. telescopic rod; 27. ball; 28. spring; 29. ​​oxygen inhalation channel; 30. gear; 31. folding bag cover; 32. exhaust pipe. DETAILED DESCRIPTION

[0047] The following is further described in detail through specific implementation methods:

[0048] Example 1:

[0049] As attached Figure 1 As shown: A plastic auxiliary ventilation mask for endoscopic examination includes a mask 1, a T-shaped bracket 2 is integrally formed on the mask 1, and a first elastic strap 3 for fixing the upper part of the mask 1 is provided on the T-shaped bracket 2. In this embodiment, the two ends of the first elastic strap 3 are fixedly sewn to the two ends of the horizontal end of the T-shaped bracket 2.

[0050] A first fixing ring 4 and a second fixing ring 5 are symmetrically and integrally formed on the side wall of the mask 1 .

[0051] The mask 1 is provided with a second elastic strap 6 for securing the lower portion of the mask 1. One end of the second elastic strap 6 is fixedly sewn to the first fixing ring 4, and the other end of the second elastic strap 6 passes through the second fixing ring 5 and is detachably connected to the second fixing ring 5. The detachable connection between the second elastic strap 6 and the fixing ring 5 can be achieved by using one of a Velcro, magnetic, snap, quick-release buckle, safety pin, rotary locking mechanism, elastic knot lock, and spring clip. In this embodiment, Velcro is used as the detachable connection between the second elastic strap 6 and the fixing ring 5.

[0052] The edge of the mask 1 is provided with a shaping component for automatically fitting the patient's face when worn.

[0053] A driving assembly is provided in the second fixing ring 5 for providing power to the shaping assembly when the second elastic binding band 6 is pulled.

[0054] A folding bag cover 31 is fixedly bonded to the mask 1, and the folding bag cover 31 is connected to the mask 1; an air hole 14 is opened on the folding bag cover 31, and a catheter 15 for inserting an endoscope is provided on the air hole 14. The catheter 15 is connected to the folding bag cover 31, and a universal component for driving the catheter 15 to rotate is provided in the air hole 14.

[0055] A sealing assembly is provided in the conduit 15 for automatically opening and closing the passage in the conduit 15 when the mask 1 is used.

[0056] To use the mask 1, place it over the patient's mouth and nose, aligning the T-shaped bracket 2 with the forehead. Pull the first elastic strap 3 around the back of the patient's head, using the elastic tension at the horizontal seam of the T-shaped bracket 2 to secure the upper portion of the mask 1 to the forehead. While holding the mask 1 in place with one hand, pull the second elastic strap 6 through the second fixing ring 5 with the other hand. After adjusting the tightness to the patient's jaw, fold the second elastic strap 6 in half and secure it with the Velcro at the end. Aim the endoscopic probe at the entrance of the catheter 15 and slowly insert it. Since the mask 1 is fixedly bonded with a foldable bag cover 31, the foldable bag cover 31 is provided with an air hole 14, and the air hole 14 is provided with a catheter 15 for inserting an endoscope, the foldable bag cover 31 can be swung up and down and left and right in a large range of positions due to its folding design. Medical staff can adjust the position of the catheter 15 on the mask 1 by swinging the foldable bag cover 31, thereby changing the insertion position of the endoscope on the mask 1. For example, when the medical staff needs to adjust the endoscope to be inserted from above the patient's mouth, the medical staff can adjust the foldable bag cover 31 to swing downward to above the mouth, thereby adjusting the position of the catheter 15 to above the mouth; compared with the fixed endoscope insertion hole of the traditional medical breathing mask, the foldable bag cover 31 can flexibly change the insertion position of the endoscope, thereby improving the flexibility of medical staff in using the endoscope.

[0057] As attached Figure 1 and Figure 2 Specifically, the shaping assembly includes an annular airbag 7 fixedly bonded to the edge of the mask 1, with an air release tube connected to the side wall of the annular airbag 7. The driving assembly includes a dial 8 that rotatably engages the inner side of the second fixing ring 5, and a cavity defined within the side wall of the second fixing ring 5. The dial 8 and the second elastic band 6 are in rolling engagement.

[0058] A piston cylinder 9 is fixedly connected to the inner wall of the cavity by screws, a piston is slidably fitted in the piston cylinder 9, a piston rod 10 is integrally formed on the piston, a crank 11 is hinged at one end of the piston rod 10 away from the piston, a wheel 12 is eccentrically hinged at one end of the crank 11 away from the piston rod 10, and the wheel 12 and one end of the dial wheel 8 are coaxially fixedly connected by screws.

[0059] The side wall of the piston cylinder 9 is connected with an air inlet pipe and an air outlet pipe 13, and both the air inlet pipe and the air outlet pipe 13 are connected with a one-way valve. The air inlet pipe is connected to the outside, and the air outlet pipe 13 is connected to the annular airbag 7.

[0060] Combine Figure 2As shown, since the second elastic band 6 passes through the second fixing ring 5, and since the thumbwheel 8 and the second elastic band 6 roll in cooperation, when the medical staff pulls the second elastic band 6 to adjust its tightness, the second elastic band 6 can drive the thumbwheel 8 to rotate; since the wheel 12 and one end of the thumbwheel 8 are coaxially fixedly connected by screws, the thumbwheel 8 drives the wheel 12 to rotate. At this time, the rotation of the wheel 12 can drive the crank 11 to perform a crank motion and then drive the piston rod 10 and then drive the piston to perform a reciprocating piston motion in the piston cylinder 9. Under the action of the one-way valves in the inlet pipe and the outlet pipe 13, the piston motion of the piston can draw external air into the piston cylinder 9, and then enter the annular airbag 7 from the outlet pipe 13, so that the annular airbag 7 expands, and the annular airbag 7 can fit the patient's facial contour closely. The shaping component automatically fits the patient's facial contour when adjusting the tightness of the second elastic strap 6, can adapt to patients with different face shapes, improve the fit between the mask 1 and the face, and effectively avoid gas leakage problems caused by poor fit. At the same time, the fit between the mask 1 and the face can further improve the stability of the mask 1 during endoscopic examination, and avoid the mask 1 shaking on the patient's face due to the movement of the endoscope.

[0061] As attached Figure 1 and Figure 3 As shown, specifically, the universal assembly includes a spherical portion 16 integrally formed at one end of the conduit 15, the spherical portion 16 is connected to the conduit 15, and the spherical portion 16 and the inner wall of the air hole 14 are spherically hinged; the sealing assembly includes a chamber opened on the side wall of the conduit 15, and a base plate 17 integrally formed on the inner wall of the conduit 15.

[0062] Combine Figure 4 and Figure 6 As shown, a first through hole is formed on the bottom plate 17; a turntable 18 is rotatably fitted at the first through hole on one side wall of the bottom plate 17, and a connecting rod 19 is integrally formed on the turntable 18, which extends into the chamber through the inner wall of the conduit 15; a second through hole corresponding to the first through hole is formed on the turntable 18; a limiting groove 20 is also circumferentially formed on the turntable 18.

[0063] A rack 21 is slidably fitted on one side wall of the base plate 17, and one end of the rack 21 is hinged to the connecting rod 19; a gear 30 is meshed with the rack 21, and the gear 30 is rotatably fitted on the inner wall of the chamber, and a rotating shaft 22 is coaxially integrally formed on the gear 30. The rotating shaft 22 extends through the side wall of the chamber away from the end of the gear 30 to the inside of the conduit 15 and is coaxially integrally formed with a friction wheel 23.

[0064] Combine Figure 5 As shown, a hexagonal slide groove is opened on one side wall of the bottom plate 17, and a number of triangular plates 24 are circumferentially slidably fitted on the slide groove. The triangular plates 24 are integrally formed with slide rods 25 on the side wall away from the bottom plate 17, and the slide rods 25 are slidably fitted with the limit grooves 20 adjacent to them.

[0065] The triangular plate 24 is provided with an auxiliary rotation component for assisting the endoscope to rotate.

[0066] Combine Figure 4 and Figure 6 As shown, when the endoscope is inserted into the catheter 15, the outer wall of the endoscope contacts the friction wheel 23 and generates friction, driving the friction wheel 23 to rotate counterclockwise. Since the friction wheel 23 and the gear 30 are coaxially integrated through the rotating shaft 22, the gear 30 rotates counterclockwise. At this time, the gear 30 drives the rack 21 to rotate in the counterclockwise direction. Figure 6 Because one end of the rack 21 is hinged to the connecting rod 19, the downward movement of the rack 21 drives the connecting rod 19 and then drives the turntable 18 to rotate clockwise. Moreover, since the slide bars 25 on the triangular plate 24 are all slidably engaged with the adjacent limiting grooves 20, the position of the limiting grooves 20 changes, and the slide bars 25 slide in the limiting grooves 20 in a direction away from the center of the turntable 18, thereby driving the triangular plate 24 to slide clockwise along the hexagonal slide groove and gradually expand each other, so that the channel between the first through hole and the second through hole is opened, and the channel in the catheter 15 is opened. At this time, the endoscope is inserted into the mask 1 from the center of the adjacent triangular plate 24.

[0067] When the endoscope is pulled out of the catheter 15, the endoscope drives the friction wheel 23 to rotate clockwise, which in turn drives the gear 30 to rotate clockwise and drives the rack 21 to rotate clockwise. Figure 6 The turntable 18 moves upward in the middle, and the slide bar 25 slides in the limit groove 20 toward the center of the turntable 18, so that the triangular plate 24 slides counterclockwise along the hexagonal slide groove and gradually retracts with each other, so that the channel between the first through hole and the second through hole is closed, and the channel in the catheter 15 is closed. At this time, the endoscope is pulled out of the catheter 15, and the triangular plate 24 forms a sealing effect on the catheter 15.

[0068] As attached Figure 7 Specifically, the auxiliary rotation assembly includes a hollow telescopic rod 26 fixedly connected to the side wall of the triangular plate 24 away from the base plate 17. The end of the telescopic rod 26 away from the triangular plate 24 is engaged with a ball bearing 27 for rotation. A spring 28 is provided within the telescopic rod 26, and both ends of the spring 28 are fixedly connected to the ends of the telescopic rod 26. A silicone rubber layer is fixedly connected to the outer walls of the friction wheel 23 and the dial wheel 8.

[0069] When the endoscope is inserted, the triangular plate 24 is unfolded. At this time, all the telescopic rods 26 can be extended due to the action of the internal spring 28, so that the ball 27 at one end of the telescopic rod 26 can be extended to contact the side wall of the endoscope. The side wall of the endoscope is in contact with the ball 27. When the doctor needs to rotate the endoscope, the ball 27 can rotate with the endoscope. The design of the ball 27 converts sliding friction into rolling friction, which greatly reduces the resistance of the endoscope during rotation. When the endoscope is pulled out, the triangular plate 24 is closed. The triangular plates 24 squeeze each other to cause the telescopic rod 26 to contract and retract the ball 27, thereby preventing the ball 27 from affecting the closure of the triangular plate 24.

[0070] The specific implementation process is as follows:

[0071] Cover the patient's mouth and nose with the mask 1, fit the T-shaped bracket 2 against the forehead, pull the first elastic strap 3 around the back of the patient's head, and use the elastic tension of the fixed seam at the horizontal end of the T-shaped bracket 2 to stably fix the upper part of the mask 1 to the forehead area.

[0072] Hold the mask 1 in place with one hand, and pull the second elastic strap 6 through the second fixing ring 5 with the other hand. After adjusting the tightness to suit the patient's jaw, fold the second elastic strap 6 in half and fix it with the Velcro at the end of the second elastic strap 6.

[0073] When the medical professional pulls the second elastic bandage 6, the piston cylinder 9 inflates the annular airbag 7, which then closely conforms to the patient's facial contours (such as the nose and cheek curves), forming a sealed cavity. If further optimization of the fit is required, the trachea can be manually opened to release a small amount of gas from the annular airbag 7.

[0074] Align the endoscope probe with the entrance of the catheter 15 and slowly insert it. After the outer wall of the endoscope contacts the friction wheel 23, the triangular plates 24 expand with each other, opening the channel in the catheter 15, allowing the endoscope to be smoothly inserted into the mask 1, and then fine-tuned to insert it into the patient's nasal cavity to perform the endoscopic operation.

[0075] When the endoscope needs to be swiveled, the endoscope drives the catheter 15, which in turn drives the spherical portion 16, to rotate in the same direction as the endoscope's swing, eliminating the operational limitations of conventional fixed catheters 15 due to their fixed angle. The ball-hinged structure of the spherical portion 16 allows the catheter 15 to rotate 360°, allowing the endoscope probe to be flexibly directed toward different anatomical locations, such as the nasal cavity and throat, eliminating the need for repeated adjustments to the mask 1 and reducing patient discomfort.

[0076] When the endoscope needs to be rotated, the elastic force of the spring 28 within the telescopic rod 26 keeps the ball 27 lightly pressed against the sidewall of the endoscope, ensuring stability during rotation while significantly reducing operational resistance through the rolling friction of the ball 27. Doctors can insert, rotate, and adjust the angle of the endoscope with one hand, improving examination efficiency while reducing the risk of mucosal damage caused by improper force.

[0077] After the inspection is completed, the endoscope is slowly withdrawn, and the friction wheel 23 rotates clockwise in the direction of withdrawal of the endoscope, and the turntable 18 is driven counterclockwise by the gear 30 and the rack 21. The triangular plates 24 are retracted along the hexagonal groove, and the telescopic rods 26 squeeze each other to retract the balls 27. The channel in the catheter 15 is closed to prevent gas from leaking from the air hole 14.

[0078] The present invention uses a linkage design of a shaping component and a driving component to automatically fit the patient's facial contour when adjusting the second elastic strap 6, which can adapt to patients with different face shapes, improve the fit between the mask 1 and the face, and effectively avoid the problem of gas leakage caused by poor fit. At the same time, the fit between the mask 1 and the face can further improve the stability of the mask 1 during endoscopic examination, and avoid the mask 1 shaking on the patient's face due to the movement of the endoscope. The sealing component of the present invention can automatically open and close the channel according to the insertion and withdrawal of the endoscope, while allowing the endoscope to pass smoothly, preventing gas leakage and external contamination, ensuring the smooth progress of the inspection process, and maintaining a stable ventilation environment in the mask 1, improving the ventilation effect and safety.

[0079] Example 2:

[0080] As attached Figure 1 As shown, the difference from Example 1 is that the side wall of the mask 1 is symmetrically provided with oxygen inhalation channels 29, and the inner wall of the mask 1 is symmetrically and fixedly bonded with oxygen tubes (not shown in the figure), and the oxygen tubes are connected to the adjacent oxygen inhalation channels 29.

[0081] The specific implementation process is as follows:

[0082] The inner oxygen tube of the mask 1 can be directly inserted into the patient's nostrils to provide independent oxygen supply to the patient. The independent oxygen tube and the ventilation system of the mask 1 do not interfere with each other, and can continuously provide stable oxygen support to the patient while performing endoscopic examination.

[0083] Example 3:

[0084] As attached Figure 1 As shown, the difference from Example 2 is that the mask 1 is connected to the exhaust pipe 32, and a thermoplastic material layer is fixedly bonded to the outer wall of the annular airbag 7. In this embodiment, the thermoplastic material is polylactic acid material.

[0085] The specific implementation process is as follows:

[0086] The exhaust pipe 32 can promptly expel carbon dioxide exhaled by the patient from the mask 1, maintaining a stable air pressure within the mask 1. Furthermore, the exhaust pipe 32 can be connected to a non-invasive ventilator when needed. In special circumstances, patients using a non-invasive ventilator can also use the mask 1 of the present invention to undergo bronchoscopy. The polylactic acid material has excellent biodegradability and biocompatibility, and is non-toxic and non-allergenic. The polylactic acid material softens to a certain extent at body temperature, allowing it to closely conform to the facial contours after the annular airbag 7 expands and softens at the patient's body temperature. Its shape memory property allows it to restore its shape after repeated use, further enhancing the fit of the mask 1 to the patient's face and effectively reducing gas leakage.

[0087] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A plastic auxiliary ventilation mask for endoscopic examination, comprising a mask (1), a T-shaped bracket (2) fixedly connected to the mask (1), and a first elastic strap (3) for fixing the upper part of the mask (1) on the T-shaped bracket (2), characterized in that: A first fixing ring (4) and a second fixing ring (5) are symmetrically and respectively fixedly connected on the side wall of the mask (1); a second elastic band (6) for fixing the lower part of the mask (1) is provided on the mask (1); one end of the second elastic band (6) is fixedly connected to the first fixing ring (4), and the other end of the second elastic band (6) passes through the second fixing ring (5) and is detachably connected to the second fixing ring (5); The edge of the mask (1) is provided with a shaping component for automatically fitting the patient's face when worn; A driving assembly is provided in the second fixing ring (5) for providing power to the shaping assembly when the second elastic binding band (6) is pulled; A folding bag cover (31) is fixedly connected to the mask (1), and the folding bag cover (31) and the mask (1) are in communication; an air hole (14) is provided on the folding bag cover (31), and a catheter (15) for inserting an endoscope is provided on the air hole (14), and the catheter (15) and the folding bag cover (31) are in communication, and a universal assembly for driving the catheter (15) to rotate is provided in the air hole (14); A sealing component is provided in the conduit (15) for automatically opening and closing the passage in the conduit (15) when the mask (1) is used.

2. The plastic auxiliary ventilation mask for endoscopy according to claim 1, characterized in that: The shaping component comprises an annular air bag (7) fixedly connected to the edge of the mask (1), and a deflation pipe is connected to the side wall of the annular air bag (7).

3. The moldable auxiliary ventilation mask for endoscopy according to claim 2, characterized in that: The driving assembly comprises a thumbwheel (8) rotatably engaged with the inner side of the second fixing ring (5), and a cavity opened in the side wall of the second fixing ring (5); the thumbwheel (8) and the second elastic band (6) are in rolling engagement; A piston cylinder (9) is fixedly connected to the inner wall of the cavity, a piston is slidably fitted in the piston cylinder (9), a piston rod (10) is fixedly connected to the piston, a crank (11) is hingedly connected to one end of the piston rod (10) away from the piston, a wheel disc (12) is eccentrically hingedly connected to one end of the crank (11) away from the piston rod (10), and the wheel disc (12) and one end of the dial wheel (8) are coaxially fixedly connected; An air inlet pipe and an air outlet pipe (13) are connected on the side wall of the piston cylinder (9), and both the air inlet pipe and the air outlet pipe (13) are connected with a one-way valve. The air inlet pipe is connected to the outside, and the air outlet pipe (13) is connected to the annular air bag (7).

4. The moldable auxiliary ventilation mask for endoscopy according to claim 3, characterized in that: The universal assembly comprises a spherical portion (16) fixedly connected to one end of the conduit (15), the spherical portion (16) and the conduit (15) are communicated, and the spherical portion (16) and the inner wall of the air hole (14) are spherically hinged.

5. The moldable auxiliary ventilation mask for endoscopy according to claim 4, characterized in that: The sealing assembly includes a chamber opened on the side wall of the conduit (15), and a bottom plate (17) fixedly connected to the inner side wall of the conduit (15); A first through hole is formed on the bottom plate (17); a turntable (18) is rotatably engaged with the first through hole on a side wall of the bottom plate (17); a connecting rod (19) is fixedly connected to the turntable (18); the connecting rod (19) passes through the inner wall of the conduit (15) and extends into the chamber; a second through hole corresponding to the first through hole is formed on the turntable (18); and a limiting groove (20) is also circumferentially formed on the turntable (18); A rack (21) is slidably engaged with a side wall of the bottom plate (17), and one end of the rack (21) is hinged to the connecting rod (19); a gear (30) is meshed with the rack (21), and the gear (30) is rotatably engaged with the inner wall of the chamber, and a rotating shaft (22) is coaxially fixedly connected to the gear (30); an end of the rotating shaft (22) away from the gear (30) passes through the side wall of the chamber and extends into the conduit (15) and is coaxially fixedly connected to a friction wheel (23); A hexagonal slide groove is provided on one side wall of the bottom plate (17), and a plurality of triangular plates (24) are slidably engaged with the slide groove in the circumferential direction. A slide rod (25) is fixedly connected to the side wall of the triangular plates (24) away from the bottom plate (17), and the slide rods (25) are slidably engaged with the adjacent limiting grooves (20); An auxiliary rotation component for assisting the endoscope to rotate is provided on each of the triangular plates (24).

6. The moldable auxiliary ventilation mask for endoscopy according to claim 5, characterized in that: The auxiliary rotating assembly comprises a hollow telescopic rod (26) fixedly connected to a side wall of the triangular plate (24) away from the bottom plate (17); one end of the telescopic rod (26) away from the triangular plate (24) is rotatably matched with a ball (27); a spring (28) is provided in the telescopic rod (26); both ends of the spring (28) are fixedly connected to the two ends of the telescopic rod (26).

7. The moldable auxiliary ventilation mask for endoscopy according to claim 6, characterized in that: The second elastic strap (6) and the second fixing ring (5) are detachably connected in a manner selected from the group consisting of Velcro, magnetism, snap fasteners, quick-release locks, safety pin structures, rotational locking mechanisms, elastic knot locking, and spring clips.

8. The moldable auxiliary ventilation mask for endoscopy according to claim 7, characterized in that: Oxygen inhalation channels (29) are symmetrically provided on the side walls of the mask (1), and oxygen tubes are symmetrically and fixedly connected to the inner wall of the mask (1), and the oxygen tubes are both communicated with the adjacent oxygen inhalation channels (29).

9. The moldable auxiliary ventilation mask for endoscopy according to claim 8, characterized in that: Silicon rubber layers are fixedly connected to the outer side walls of the friction wheel (23) and the thumbwheel (8).

10. The moldable auxiliary ventilation mask for endoscopy according to claim 9, characterized in that: The mask (1) is connected to an exhaust pipe (32), and a thermoplastic material layer is fixedly connected to the outer side wall of the annular airbag (7).

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