Anesthesia mask special for gastroscopy

By employing a tight-fitting structure between the second annular sleeve and the second conical sleeve in the gastroscopy-specific anesthesia mask and the air tube, combined with a tensioning component, the problems of cumbersome connection operation and poor sealing of existing anesthesia masks have been solved, achieving convenient replacement and efficient sealing.

CN224540750UActive Publication Date: 2026-07-24HAINAN MODERN WOMENS XINGGUANG HOSPITAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HAINAN MODERN WOMENS XINGGUANG HOSPITAL CO LTD
Filing Date
2025-04-28
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing endoscopy-specific anesthesia masks have problems such as cumbersome operation, slow replacement speed, and conflicting sealing and insertion/removal forces when connecting the mask and the infusion tube. In particular, when the diameter of the airway tube and the infusion tube do not match, the sealing performance is poor or insertion/removal is inconvenient.

Method used

A special anesthesia mask for gastroscopy was designed. It uses a second annular sleeve and a second conical sleeve on the outside of the inlet tube to fit tightly with the first conical sleeve inside the air tube. The seal is achieved by a tensioning assembly, which includes a pull rod, a protruding post, an L-shaped rod and a spring, to ensure a stable connection between the inlet tube and the air tube.

Benefits of technology

It achieves convenient connection and efficient sealing between the inlet tube and the air delivery tube, improves the speed and sealing performance of mask replacement, and solves the problems of cumbersome operation and sealing performance in the existing technology.

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Abstract

The utility model discloses a special anesthetic mask of gastroscope, including the mask main part, and the mask main part is fixed and is linked with the air conduit on, and the air conduit one side is provided with the transfer pipe, and the transfer pipe is fixed and is linked with the oxygen pipe and the reagent pipe on, and the transfer pipe still is fixed and is linked with the input pipe on, and the input pipe can be embedded to the air conduit, when the input pipe is embedded to the air conduit, and the convex post slides in the stroke groove, when second conical cover and first conical cover are pasted, and rotate the pull rod and make it drive the installation ring rotation, and the pull rod rotation drives the convex post to slide in the connecting groove, when the convex post removes to the card slot, and loosen the pull rod, and now under the spring resilience drive L type rod, pull rod moves, make the convex post card in the card slot to fixed input pipe and air conduit with, and spring still is in compression state at this time, make spring to air conduit, input pipe exist the function of pulling and pulling, thereby make second conical cover and first conical cover be in the state of close adhesion.
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Description

Technical Field

[0001] This utility model relates to the field of mask technology, and in particular to an anesthesia mask specifically for gastroscopy. Background Technology

[0002] An anesthetic mask for gastroscopy is a special medical device primarily used to provide safe and effective anesthesia and ventilation support for patients during painless gastroscopy examinations or treatments. To reduce pain during gastroscopy, patients are usually anesthetized, which requires the use of an anesthetic mask. Gastroscopy anesthesia masks typically have oxygen and medication tubing installed. When in use, the mask is placed over the patient's mouth and nose, allowing the patient to inhale oxygen and anesthetic, thus achieving anesthesia—a common form of inhalation anesthesia.

[0003] However, existing gastroscopy-specific anesthesia masks are usually disposable. When connecting the mask and the infusion tube, there are mainly two types: threaded connection and plug-in connection. Threaded connection is cumbersome to operate and slows down mask replacement. Plug-in connection has a conflicting problem regarding sealing and insertion / removal force. If the diameter of the air tube on the mask is much larger than the diameter of the infusion tube, it is easy to insert the infusion tube into the air tube of the mask, but the seal between the two is poor. If the diameter of the air tube on the mask is only slightly larger than the diameter of the infusion tube, although the seal between the two is better, it is not easy to insert the infusion tube into the air tube of the mask. Utility Model Content

[0004] (I) Purpose of the utility model

[0005] In view of this, the purpose of this utility model is to propose a special anesthesia mask for gastroscopy. The technical problem to be solved is that existing special anesthesia masks for gastroscopy are usually disposable. When connecting the mask and the inlet tube, there are mainly two types: threaded connection and plug-in connection. Threaded connection is cumbersome to operate and the mask replacement speed is slow. Plug-in connection has a contradictory problem in terms of sealing and insertion / removal force. If the diameter of the air tube on the mask is much larger than the diameter of the inlet tube, although it is easy to insert the inlet tube into the air tube of the mask, the sealing between the two is poor. If the diameter of the air tube on the mask is only slightly larger than the diameter of the inlet tube, although the sealing between the two is better, it is not convenient to insert the inlet tube into the air tube of the mask.

[0006] (II) Technical Solution

[0007] To achieve the above technical objectives, this utility model provides a special anesthesia mask for gastroscopy:

[0008] It includes a mask body, on which an air duct is fixed and connected. A transfer tube is provided on one side of the air duct, and an oxygen tube and a medicine tube are fixed and connected to the transfer tube. An input tube is also fixed and connected to the transfer tube. The input tube can be embedded in the air duct. A first annular sleeve and a first conical sleeve are fixed inside the air duct and are fixed together. A second annular sleeve and a second conical sleeve are fixed outside the input tube and are fixed together. The outer side of the second conical sleeve is in contact with the inner wall of the first conical sleeve. A tensioning component is provided on the outer side of the air duct and the transfer tube for tightly fitting the second conical sleeve and the first conical sleeve together.

[0009] Preferably, the outer side of the air guide tube is provided with multiple travel grooves, connecting grooves and retaining grooves at equal intervals along its radial direction, and the two ends of the connecting grooves are respectively connected to the travel grooves and retaining grooves.

[0010] Preferably, the tensioning assembly includes multiple pull rods, one end of which is fixed with a protrusion, which is slidably fitted into a stroke groove, a connecting groove, and a retaining groove.

[0011] Preferably, an L-shaped rod is fixed to the end of the pull rod away from the protrusion, a mounting ring is rotatably connected to the outside of the input pipe, the L-shaped rod passes through the mounting ring and slides within the mounting ring, and a protrusion is fixed to the end of the L-shaped rod away from the pull rod.

[0012] Preferably, a spring is sleeved on the outer side of the L-shaped rod, one end of the spring abutting against the protrusion, and the other end of the spring abutting against the mounting ring.

[0013] Preferably, the outer diameters of the input tube and the second annular sleeve are both smaller than the inner wall diameter of the air guide tube, and the outer diameters of the second annular sleeve and the second conical sleeve are both larger than the inner wall diameter of the first annular sleeve.

[0014] As can be seen from the above technical solutions, this application has the following beneficial effects:

[0015] 1. Because the outer diameter of the input tube and the second annular sleeve is smaller than the inner diameter of the air guide tube, the input tube and the second annular sleeve can be easily inserted into the air guide tube. Because the outer diameter of the second annular sleeve and the second conical sleeve is larger than the inner diameter of the first annular sleeve, when the second annular sleeve and the second conical sleeve are inserted into the air guide tube, the second conical sleeve will fit against the inner wall of the first conical sleeve, thereby sealing the connection between the air guide tube and the input tube.

[0016] 2: When the input tube is inserted into the air guide tube, the protrusion slides in the stroke groove. When the second conical sleeve and the first conical sleeve are in contact, rotate the pull rod to make the mounting ring rotate. When the pull rod rotates, it causes the protrusion to slide in the connecting groove. When the protrusion moves into the slot, release the pull rod. At this time, under the spring's rebound force, it drives the L-shaped rod and the pull rod to move, so that the protrusion is stuck in the slot, thereby fixing the input tube and the air guide tube together. At this time, the spring is still in a compressed state, so that the spring has a pulling effect on the air guide tube and the input tube, thereby making the second conical sleeve and the first conical sleeve in a tight fit. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0018] Figure 1 A schematic diagram of the structure of a gastroscopy-specific anesthesia mask provided by this utility model;

[0019] Figure 2 A partial cross-sectional view of an anesthesia mask for gastroscopy provided by this utility model;

[0020] Figure 3 Provided by this utility model Figure 1 Schematic diagram of the structure at point A;

[0021] Figure 4 Provided by this utility model Figure 2 A schematic diagram of the structure at point B.

[0022] Figure descriptions: 1. Mask body; 2. Air duct; 3. Transfer tube; 4. Oxygen tube; 5. Drug tube; 6. Input tube; 7. First annular sleeve; 8. First conical sleeve; 9. Second annular sleeve; 10. Second conical sleeve; 11. Mounting ring; 12. L-shaped rod; 13. Protrusion; 14. Spring; 15. Pull rod; 16. Stroke groove; 17. Connecting groove; 18. Slot; 19. Protrusion. Detailed Implementation

[0023] The following description is exemplary in nature and is not intended to limit the scope, application, or use of this disclosure. It should be understood that in all these figures, the same or similar reference numerals indicate the same or similar parts and features. The figures are merely schematic representations of the concept and principles of embodiments of this disclosure and do not necessarily show the specific dimensions and scale of the various embodiments of this disclosure. Certain details or structures of embodiments of this disclosure may be exaggerated in particular portions of certain figures.

[0024] Reference Figure 1-4 :

[0025] In one embodiment of this utility model, a special anesthesia mask for gastroscopy is provided, including a mask body 1, an air duct 2 fixed and connected to the mask body 1, a transfer tube 3 provided on one side of the air duct 2, an oxygen tube 4 and a drug tube 5 fixed and connected to the transfer tube 3, and an input tube 6 fixed and connected to the transfer tube 3. The input tube 6 can be embedded in the air duct 2. A first annular sleeve 7 and a first conical sleeve 8 are fixed inside the air duct 2, and the first annular sleeve 7 and the first conical sleeve 8 are fixed together. The outside of the input tube 6... A second annular sleeve 9 and a second conical sleeve 10 are fixed together. The outer side of the second conical sleeve 10 is in contact with the inner wall of the first conical sleeve 8. A tensioning assembly for tightly fitting the second conical sleeve 10 and the first conical sleeve 8 is provided on the outer side of the air guide tube 2 and the transfer tube 3. The outer diameters of the input tube 6 and the second annular sleeve 9 are smaller than the inner wall diameter of the air guide tube 2, and the outer diameters of the second annular sleeve 9 and the second conical sleeve 10 are larger than the inner wall diameter of the first annular sleeve 7.

[0026] When using the mask body 1, align the input tube 6 with the air guide tube 2 so that the input tube 6 is inserted into the air guide tube 2. Since the outer diameter of the input tube 6 and the second annular sleeve 9 is smaller than the inner wall diameter of the air guide tube 2, the input tube 6 and the second annular sleeve 9 are very easy to insert into the air guide tube 2. Since the outer diameter of the second annular sleeve 9 and the second conical sleeve 10 is larger than the inner wall diameter of the first annular sleeve 7, when the second annular sleeve 9 and the second conical sleeve 10 are inserted into the air guide tube 2, the second conical sleeve 10 will fit against the inner wall of the first conical sleeve 8, thereby sealing the connection between the air guide tube 2 and the input tube 6.

[0027] The air duct 2 has multiple travel grooves 16, connecting grooves 17, and locking grooves 18 evenly spaced along its radial direction. The two ends of the connecting groove 17 are connected to the travel grooves 16 and locking grooves 18, respectively. The tensioning assembly includes multiple pull rods 15. One end of the pull rod 15 is fixed with a protrusion 19, which slides in the travel grooves 16, connecting grooves 17, and locking grooves 18. The end of the pull rod 15 away from the protrusion 19 is fixed with an L-shaped rod 12. The outside of the input pipe 6 is rotatably connected to an installation ring 11. The L-shaped rod 12 passes through the installation ring 11 and slides within the installation ring 11. The end of the L-shaped rod 12 away from the pull rod 15 is fixed with a protrusion 13. A spring 14 is sleeved on the outside of the L-shaped rod 12. One end of the spring 14 abuts against the protrusion 13, and the other end of the spring 14 abuts against the installation ring 11.

[0028] It should be noted that when the input pipe 6 is inserted into the air guide pipe 2, the pull rod 15 is moved first. When the pull rod 15 moves, it drives the L-shaped rod 12 to move. When the L-shaped rod 12 moves, it drives the protrusion 13 to compress the spring 14. Then, the protrusion 19 is aligned with the stroke groove 16. When the input pipe 6 is inserted into the air guide pipe 2, the protrusion 19 slides in the stroke groove 16. When the second conical sleeve 10 and the first conical sleeve 8 are in contact, the pull rod 15 is rotated to drive the mounting ring 11 to rotate. When the pull rod 15 rotates, it drives the protrusion 19 to rotate. The column 19 slides in the connecting groove 17. When the column 19 moves into the slot 18, the pull rod 15 is released. At this time, under the rebound force of the spring 14, the L-shaped rod 12 and the pull rod 15 are moved, so that the column 19 is stuck in the slot 18, thereby fixing the input pipe 6 and the air guide pipe 2. At this time, the spring 14 is still in a compressed state, so that the spring 14 has a pulling effect on the air guide pipe 2 and the input pipe 6, thereby making the second conical sleeve 10 and the first conical sleeve 8 in a tight fit.

[0029] The exemplary implementation of the solution proposed in this disclosure has been described in detail above with reference to preferred embodiments. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the spirit of this disclosure, and various combinations can be made to the various technical features and structures proposed in this disclosure without exceeding the protection scope of this disclosure, which is determined by the appended claims.

Claims

1. A special anesthesia mask for gastroscopy, comprising a mask body (1), characterized in that, A duct (2) is fixed and connected to the main body (1) of the mask. A transfer tube (3) is provided on one side of the duct (2). An oxygen tube (4) and a medicine tube (5) are fixed and connected to the transfer tube (3). An input tube (6) is also fixed and connected to the transfer tube (3). The input tube (6) can be embedded in the duct (2). A first annular sleeve (7) and a first conical sleeve (8) are fixed inside the duct (2). (7) and the first conical sleeve (8) are fixed together. The input pipe (6) is fixed with a second annular sleeve (9) and a second conical sleeve (10), and the second annular sleeve (9) and the second conical sleeve (10) are fixed together. The outer side of the second conical sleeve (10) and the inner wall of the first conical sleeve (8) are in contact. The air guide pipe (2) and the transfer pipe (3) are provided with a tensioning component for tightly fitting the second conical sleeve (10) and the first conical sleeve (8).

2. The anesthesia mask for gastroscopy according to claim 1, characterized in that, The outer side of the air guide pipe (2) is provided with multiple travel grooves (16), connecting grooves (17) and locking grooves (18) at equal intervals along its radial direction. The two ends of the connecting groove (17) are respectively connected to the travel grooves (16) and locking grooves (18).

3. The anesthesia mask for gastroscopy according to claim 2, characterized in that, The tensioning assembly includes multiple pull rods (15), one end of which is fixed with a protrusion (19), which is slidably fitted in the stroke groove (16), the connecting groove (17), and the retaining groove (18).

4. The anesthesia mask for gastroscopy according to claim 3, characterized in that, An L-shaped rod (12) is fixed to the end of the pull rod (15) away from the protrusion (19). An installation ring (11) is rotatably connected to the outside of the input pipe (6). The L-shaped rod (12) passes through the installation ring (11) and slides within the installation ring (11). A protrusion (13) is fixed to the end of the L-shaped rod (12) away from the pull rod (15).

5. The anesthesia mask for gastroscopy according to claim 4, characterized in that, A spring (14) is sleeved on the outside of the L-shaped rod (12). One end of the spring (14) abuts against the protrusion (13), and the other end of the spring (14) abuts against the mounting ring (11).

6. The anesthesia mask for gastroscopy according to claim 1, characterized in that, The outer diameters of the input pipe (6) and the second annular sleeve (9) are both smaller than the inner wall diameter of the air guide pipe (2), and the outer diameters of the second annular sleeve (9) and the second conical sleeve (10) are both larger than the inner wall diameter of the first annular sleeve (7).