Automatic pressure relief laryngeal mask for resuscitation after anesthesia

Abstract

The utility model relates to the technical field of anesthesia laryngeal masks, in particular to an automatic pressure relief laryngeal mask for post-anesthesia resuscitation, which comprises a catheter, a base connected to one end of the catheter, an elliptical bowl-shaped shell with an opening at the top, an air bag mounted along the edge of the top of the base, an air inlet pipe and an air outlet pipe mounted at one end of the air bag, and an air outlet pipe mounted at the other end of the air bag. The air inlet pipe and the air outlet pipe are arranged in the conduit and penetrate through the top of the conduit; an extrusion balloon is mounted on the air inlet pipe, an air inlet is formed in the other end of the extrusion balloon, and a one-way valve is mounted on the air inlet; a cylinder is installed at the end of the air outlet pipe. When the automatic pressure relief laryngeal mask for resuscitation after anesthesia is used, the telescopic rod is locked through the screw rod, free switching between automatic pressure relief and closed pressure relief can be achieved, after the telescopic rod is opened, once the pressure in the air bag is increased, airflow can be transmitted to the sealing plate, the sealing plate is separated from the annular base, and therefore air is exhausted, and the automatic pressure relief laryngeal mask for resuscitation after anesthesia is completed. And automatic pressure relief operation is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of anesthesia laryngeal masks, in particular to an automatic pressure relief laryngeal mask for post-anesthesia recovery. Background Art

[0002] The laryngeal mask is a special artificial airway management technology, which was successfully developed and used in clinical practice in the mid-1980s and introduced into China in the 1990s. The use of the laryngeal mask has made great progress and its application range is becoming wider and wider.

[0003] The ventilation mask at the front end of the laryngeal mask is oval in shape and can surround the epiglottis and glottis to form a sealed ventilation space on the glottis. The patient can breathe spontaneously through the laryngeal mask or perform controlled ventilation. After the laryngeal mask is inserted, auscultation, airway resistance, PETCO2 waveform, placement of a gastric tube (double-tube laryngeal mask) and other methods can be used to determine whether its position is correct.

[0004] When the existing laryngeal mask is in use, the cuff will expand so that it fits tightly against the inner wall of the patient's throat so that the drainage tube and the ventilation tube do not affect each other. However, when the person wakes up after anesthesia, the muscles in the pharynx will expand and squeeze the laryngeal mask. If the pressure cannot be relieved in time, it is very easy to cause damage to the throat mucosa. Utility Model Content

[0005] The utility model aims to solve the above-mentioned shortcomings in the prior art and proposes an automatic pressure relief laryngeal mask for post-anesthesia resuscitation.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: designing an automatic pressure relief laryngeal mask for post-anesthesia resuscitation, comprising a catheter, a base connected to one end of the catheter, the base being an oval bowl-shaped shell with an open top, an air bag installed along the top edge of the base, an air inlet pipe and an air outlet pipe installed at one end of the air bag, the air inlet pipe and the air outlet pipe are both arranged in the catheter and pass through the top of the catheter;

[0007] An extrusion balloon is installed on the air inlet pipe, an air inlet is installed at the other end of the extrusion balloon, and a one-way valve is installed on the air inlet;

[0008] A cylinder is installed at the end of the air outlet pipe, and a turntable is rotatably installed at the other end of the cylinder, an exhaust pipe is installed on the turntable, and the exhaust pipe is arranged through the turntable. A first disk is coaxially installed at one end of the cylinder close to the turntable, and a plurality of first through holes arranged at intervals are opened at the edge of the first disk. A second disk is coaxially installed at the other end of the cylinder, and a plurality of second through holes arranged at intervals are opened on the second disk. An annular seat is installed at the edge of one side of the second disk close to the first disk, and a sealing plate is provided on the end of the annular seat. A telescopic rod is coaxially installed on the sealing plate, and the ends of the telescopic rod slide through the first disk and the second disk respectively through linear bearings. A compression spring is sleeved on the telescopic rod, and one end of the compression spring is fixed to the sealing plate and the other end is fixed to the first disk.

[0009] A screw is coaxially connected to one end of the telescopic rod close to the first disc, a cavity is arranged in one end of the screw, and the telescopic rod is placed in the cavity, a connecting seat is connected to the screw via a nut thread, and the connecting seat is connected to the turntable via a supporting frame.

[0010] Preferably, a circular groove is coaxially opened on one side of the sealing plate close to the annular seat, a limit seat is coaxially installed in the circular groove, a first sealing gasket is installed along the edge of the circular groove, and a second sealing gasket corresponding to the first sealing gasket is installed on the end of the annular seat.

[0011] Preferably, the limiting seat is an elastic rubber block, and the edge of the limiting seat is gap-matched with the inner wall of the annular seat.

[0012] Preferably, an anti-slip strip is installed at the edge of the turntable.

[0013] Preferably, a drainage tube opening is provided at one end of the base away from the catheter, and a drainage tube is connected to the drainage tube opening, the drainage tube is provided in the catheter and passes through the end of the catheter, a ventilation catheter is also provided in the catheter, a ventilation opening is also provided on the inner side of the airbag, and the end of the ventilation catheter is connected to the ventilation opening.

[0014] Preferably, a bite block is installed on the end of the catheter away from the airbag.

[0015] The design scheme proposed by the utility model has the following beneficial effects during application:

[0016] 1. The automatic pressure relief laryngeal mask for post-anesthesia recovery pushes the sealing plate on the telescopic rod against the annular seat through the rotation of the screw, so that the telescopic rod cannot slide on the first disc and the second disc, and then the sealing plate blocks the air flow in the cylinder to ensure that the air in the airbag will not leak.

[0017] 2. The automatic pressure relief laryngeal mask for post-anesthesia resuscitation can control the flow or closure of air in the cylinder by rotating the screw. After anesthesia, the screw can be rotated to loosen the telescopic rod so that the sealing plate can move away from the annular seat under the push of the airflow, so that the air can flow in the cylinder and out of the exhaust pipe, thereby achieving a pressure relief effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the cylinder structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the cylinder of the utility model;

[0021] Figure 4 This is the front view of the cylinder interior of the utility model;

[0022] Figure 5 This is a diagram showing the internal structure of the screw of the present utility model.

[0023] In the figure: 1. catheter; 2. base; 3. air bag; 4. ventilation catheter; 5. ventilation opening; 6. drainage tube; 7. drainage tube opening; 8. air inlet pipe; 9. squeezing balloon; 10. air outlet pipe; 11. cylinder; 12. turntable; 13. exhaust pipe; 14. first disc; 15. first through hole; 16. telescopic rod; 17. second disc; 18. second through hole; 19. annular seat; 20. compression spring; 21. sealing plate; 22. limit seat; 23. circular groove; 24. first sealing gasket; 25. second sealing gasket; 26. screw; 27. connecting seat; 28. support frame; 29. ​​anti-slip strip; 30. tooth pad; 31. cavity. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Reference Figure 1-Figure 5The invention discloses an automatic pressure relief laryngeal mask for post-anesthesia resuscitation, comprising a catheter 1, a base 2 is connected to one end of the catheter 1, the base 2 is an oval bowl-shaped shell with an opening at the top, an air bag 3 is installed along the top edge of the base 2, a drainage tube opening 7 is arranged at the end of the base 2 away from the catheter 1, and a drainage tube 6 is connected to the drainage tube opening 7, the drainage tube 6 is arranged in the catheter 1 and passes through the end of the catheter 1, a ventilation catheter 4 is also arranged in the catheter 1, a ventilation opening 5 is also arranged on the inner side of the air bag 3, the end of the ventilation catheter 4 is connected to the ventilation opening 5, IPPV operation is performed through the ventilation catheter 4, and the drainage tube 6 can suck out oral or laryngeal secretions, thereby protecting the airway; wherein, a tooth pad 30 is installed on the end of the catheter 1 away from the air bag 3, which is used to protect the catheter 1, ensure that the patient's teeth bite on the catheter 1, and then bite the ventilation catheter 4 and the drainage tube 6 flat, so that the ventilation catheter 4 and the drainage tube 6 cannot be used normally.

[0026] like Figure 1 As shown, an air inlet pipe 8 and an air outlet pipe 10 are installed at one end of the airbag 3, and the air inlet pipe 8 and the air outlet pipe 10 are both arranged in the catheter 1 and penetrate the top of the catheter 1; an extrusion balloon 9 is installed on the air inlet pipe 8, and an air inlet is installed at the other end of the extrusion balloon 9, and a one-way valve is installed on the air inlet to transport air into the airbag 3, so as to expand the airbag 3;

[0027] like Figure 2 and Figure 3 As shown, a cylinder 11 is installed at the end of the outlet pipe 10, a turntable 12 is rotatably installed at the other end of the cylinder 11, an exhaust pipe 13 is installed on the turntable 12, and the exhaust pipe 13 is arranged through the turntable 12. A first disk 14 is coaxially installed at one end of the cylinder 11 near the turntable 12, and a plurality of first through holes 15 arranged at intervals are opened at the edge of the first disk 14. A second disk 17 is coaxially installed at the other end of the cylinder 11, and a plurality of second through holes 18 arranged at intervals are opened on the second disk 17. An annular seat 19 is installed at the edge of one side of the second disk 17 near the first disk 14, and as shown in FIG. Figure 3 and Figure 4As shown, a sealing plate 21 is provided on the end of the annular seat 19, and a telescopic rod 16 is coaxially installed on the sealing plate 21. The ends of the telescopic rod 16 slide through the first disc 14 and the second disc 17 respectively through linear bearings, and a compression spring 20 is sleeved on the telescopic rod 16, one end of the compression spring 20 is fixed on the sealing plate 21 and the other end is fixed on the first disc 14. In actual use, when the sealing plate 21 contacts the annular seat 19, the compression spring 20 is in a compressed state. Therefore, when the gas flows into the cylinder 11, the elastic action of the compression spring 20 will act on the sealing plate 21, thereby pushing the sealing plate 21 against the annular seat 19, but the pharyngeal muscles squeeze the airbag 3 when expanding, thereby increasing the pressure acting on the sealing plate 21, so that the sealing plate 21 is detached from the annular seat 19, and then the air is allowed to flow out from the exhaust pipe 13, so that the airbag 3 can be timely decompressed.

[0028] like Figure 5 As shown, a screw rod 26 is coaxially connected to one end of the telescopic rod 16 close to the first disc 14, a cavity 31 is provided in one end of the screw rod 26, and the telescopic rod 16 is placed in the cavity 31. A connecting seat 27 is connected to the screw rod 26 via a nut thread, and the connecting seat 27 is connected to the turntable 12 via a support frame 28.

[0029] When in use, after the patient is anesthetized, the airbag 3 and the base 2 are placed in the patient's oral cavity and throat, and then the ventilation catheter 4 is connected to ensure the normal oxygen supply to the patient after anesthesia, and then the balloon 9 is repeatedly pressed and squeezed to inflate the airbag 3 through the air inlet pipe 8, so that the outer wall of the airbag 3 is closely attached to the inner wall of the patient's throat, and the turntable 12 is turned to allow the screw 26 to push the telescopic rod 16 to make the sealing plate 21 press against the annular seat 19 to ensure that the gas in the airbag 3 will not be discharged from the exhaust pipe 13, and then the operation and other operations can be started. When the patient wakes up after the operation, the turntable 12 is turned again. , so that the telescopic rod 16 no longer rests on the end of the cavity 31. At this time, the telescopic rod 16 has the ability to slide on the disc. If the patient's pharyngeal muscles expand and squeeze the airbag 3, the gas in the airbag 3 will flow into the cylinder 11 due to the squeezing, thereby pushing the sealing plate 21, so that a gap appears between the sealing plate 21 and the annular seat 19, so that air can flow out from it and then be discharged from the exhaust pipe 13, thereby realizing the pressure relief operation of the airbag 3. The expansion of the pharyngeal muscles and the squeezing between the airbag 3 may cause the patient's pharyngeal injury.

[0030] In order to improve the sealing performance between the sealing plate 21 and the annular seat 19, Figure 4As shown, a circular groove 23 is coaxially opened on one side of the sealing plate 21 close to the annular seat 19, a limiting seat 22 is coaxially installed in the circular groove 23, and a first sealing gasket 24 is installed along the edge of the circular groove 23, and a second sealing gasket 25 corresponding to the first sealing gasket 24 is installed on the end of the annular seat 19, so that the sealing plate 21 and the annular seat 19 can fit more closely under the elastic action of the compression spring 20, thereby preventing air leakage when the airbag 3 is filled, which affects the normal use of the laryngeal mask.

[0031] Furthermore, the limiting seat 22 is an elastic rubber block, and the edge of the limiting seat 22 is gap-matched with the inner wall of the annular seat 19 to ensure that the sealing plate 21 and the annular seat 19 are aligned.

[0032] It should be noted that, in order to facilitate the rotation of the turntable 12, an anti-slip strip 29 is installed at the edge of the turntable 12 to increase the friction coefficient between the turntable 12 and the operator's hand, making the rotation of the turntable 12 more labor-saving.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic pressure relief laryngeal mask for post-anesthesia resuscitation, characterized in that: The invention comprises a catheter (1), one end of which is connected to a base (2), the base (2) being an oval bowl-shaped shell with an open top, an air bag (3) being installed along the top edge of the base (2), an air inlet pipe (8) and an air outlet pipe (10) being installed at one end of the air bag (3), the air inlet pipe (8) and the air outlet pipe (10) being both arranged in the catheter (1) and penetrating the top of the catheter (1); An extrusion balloon (9) is installed on the air inlet pipe (8), an air inlet is installed at the other end of the extrusion balloon (9), and a one-way valve is installed on the air inlet; A cylinder (11) is installed at the end of the air outlet pipe (10), a turntable (12) is rotatably installed at the other end of the cylinder (11), an exhaust pipe (13) is installed on the turntable (12), and the exhaust pipe (13) is arranged through the turntable (12), a first disk (14) is coaxially installed at one end of the cylinder (11) near the turntable (12), a plurality of first through holes (15) arranged at intervals are provided at the edge of the first disk (14), a second disk (17) is coaxially installed at the other end of the cylinder (11), and a plurality of first through holes (15) arranged at intervals are provided on the second disk (17). A second through hole (18) is formed in a row, an annular seat (19) is installed at the edge of one side of the second disk (17) close to the first disk (14), and a sealing plate (21) is provided on the end of the annular seat (19), a telescopic rod (16) is coaxially installed on the sealing plate (21), and the ends of the telescopic rod (16) are respectively slidably passed through the first disk (14) and the second disk (17) through linear bearings, and a compression spring (20) is sleeved on the telescopic rod (16), one end of the compression spring (20) is fixed on the sealing plate (21) and the other end is fixed on the first disk (14); A screw rod (26) is coaxially connected to one end of the telescopic rod (16) close to the first disc (14); a cavity (31) is provided in one end of the screw rod (26); the telescopic rod (16) is placed in the cavity (31); a connecting seat (27) is connected to the screw rod (26) via a nut thread; and the connecting seat (27) is connected to the rotating disc (12) via a supporting frame (28).

2. The automatic pressure relief laryngeal mask for post-anesthesia resuscitation according to claim 1, characterized in that: A circular groove (23) is coaxially formed on one side of the sealing plate (21) close to the annular seat (19), a limiting seat (22) is coaxially installed in the circular groove (23), a first sealing gasket (24) is installed along the edge of the circular groove (23), and a second sealing gasket (25) corresponding to the first sealing gasket (24) is installed on the end of the annular seat (19).

3. The automatic pressure relief laryngeal mask for post-anesthesia resuscitation according to claim 2, characterized in that: The limiting seat (22) is an elastic rubber block, and the edge of the limiting seat (22) is gap-matched with the inner wall of the annular seat (19).

4. The automatic pressure relief laryngeal mask for post-anesthesia resuscitation according to claim 1, characterized in that: An anti-slip strip (29) is installed at the edge of the rotating disk (12).

5. The automatic pressure relief laryngeal mask for post-anesthesia resuscitation according to claim 1, characterized in that: A drainage tube opening (7) is provided at one end of the base (2) away from the catheter (1), and a drainage tube (6) is connected to the drainage tube opening (7); the drainage tube (6) is provided in the catheter (1) and passes through the end of the catheter (1); a ventilation catheter (4) is also provided in the catheter (1); a ventilation opening (5) is also provided on the inner side of the airbag (3); and the end of the ventilation catheter (4) is connected to the ventilation opening (5).

6. The automatic pressure relief laryngeal mask for post-anesthesia resuscitation according to claim 1, characterized in that: A tooth pad (30) is installed on one end of the catheter (1) away from the air bag (3).

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