CN213191896U

CN213191896U - Novel medical laryngeal mask

Info

Publication number: CN213191896U
Application number: CN202021355689.7U
Authority: CN
Inventors: 璧靛钩; 赵平
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-12
Filing date: 2020-07-12
Publication date: 2021-05-14
Anticipated expiration: 2030-07-12

Abstract

A novel medical laryngeal mask comprises a laryngeal mask body, wherein the laryngeal mask body comprises a mask sac, an airway tube, a drainage tube and a tube connector, the front end of the mask sac is provided with an esophagus inlet, the back of the mask sac is provided with a drainage main groove, one end of the drainage main groove is connected with the esophagus inlet, and the other end of the drainage main groove is connected with the drainage tube; a limiting mechanism is arranged on the outer side of the airway tube; and a pressure limiting valve is arranged above the conduit joint and connected with the conduit joint. Compared with the prior art, the drainage groove is arranged at the back of the mask sac, so that oral secretion can be better drained, and the possibility of mistaken suction of the secretion is further reduced; the pressure limiting valve is added on the laryngeal mask main body, so that adverse reactions of stomach flatulence, mechanical barotrauma and the like caused by overhigh airway pressure of a patient can be reduced; the adjustable limiting mechanism plays a better limiting role and reduces the occurrence of discomfort of the throat after operation; the laryngeal mask is simple in structure and easy to put in, and can greatly reduce pain of a patient caused in the application process of the laryngeal mask.

Description

Novel medical laryngeal mask

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a novel medical laryngeal mask.

Background

A laryngeal mask endotracheal tube was invented by Brain in 1983 and was first advocated for use with an airway that employs an extra-glottic approach. In the current clinical medical activity, the laryngeal mask is widely applied in clinic as a medical apparatus for maintaining the respiratory ventilation of patients in the establishment of a respiratory ventilation passageway of the patients due to the characteristics of non-invasive air passage and high comfort level. With the progress of technical and material research, various improved laryngeal masks have been used clinically. However, most of the current laryngeal masks still have a plurality of defects: firstly, in the adjusting process after the laryngeal mask is placed and the recovering process of a patient in the operation or after the operation, the mechanical ventilation has the possibility of a period of obvious high airway pressure, so that the incidence rate of flatulence can be increased, and the incidence rates of reflux in the operation, nausea and vomiting after the operation and the like are increased; secondly, the double-tube drainage laryngeal mask is not fully drained through a sputum suction channel before tube drawing, a plurality of oral secretions around the laryngeal mask are difficult to be smoothly led out through a drainage port at the top end of the laryngeal mask, and the possibility of mistaken suction of the secretions exists in the tube drawing process. Third, most laryngeal mask of clinical present lacks effectual spacing fixed function, most laryngeal mask limit baffle at present is mostly fixed motionless, no degree of depth regulatory function, can sink too deeply to the laryngeal mask passively because of overweight in the clinical work behind connecting thread pipe and the artificial nose, arouse laryngeal mask counterpoint to change more, increase the pressure of laryngeal mask front end and laryngeal tissue, and then produce when ventilating gas leakage, airway pressure increase, postoperative laryngeal mask is because of oppressing bad phenomenon such as too big and uncomfortable. Adhesive tapes are mostly adopted for clinical fixation, but the adhesive tapes are difficult to maintain the depth fixation, and the independent laryngeal mask fixing device has the defects of inconvenient use, high cost and the like; and fourthly, partial patients are difficult to insert due to poor compliance of the front end of the laryngeal mask, so that oral mucosa is damaged in the process of tube insertion.

SUMMERY OF THE UTILITY MODEL

To the defect above the prior art exists, the utility model provides a novel medical laryngeal mask as follows:

the technical scheme of the utility model is realized like this:

the utility model provides a novel medical laryngeal mask, includes the laryngeal mask body, the laryngeal mask body is including cover bag, air flue pipe, drainage catheter and pipe joint, cover bag front end is equipped with the esophagus entry, cover bag back is provided with drainage owner's groove, the esophagus entry is connected to drainage owner's groove one end, and drainage catheter is connected to the other end.

Preferably, the drainage catheter main body part is positioned in the airway catheter, the front end of the drainage catheter main body part penetrates out of the back of the mask sac and is communicated with the drainage main groove, and the drainage main groove, the drainage catheter and the esophagus inlet are not communicated with the inner side of the mask sac respectively.

Preferably, the back of the mask sac is also provided with a plurality of drainage branch grooves, and the drainage branch grooves are communicated with the drainage main groove.

Preferably, the airway tube outside is provided with stop gear, stop gear is including installing at airway tube outlying fixed block, be provided with the through-hole in the middle of the fixed block, be provided with the regulation pole that can follow through-hole axial displacement in the through-hole, the one end of adjusting the nearly cover bag of pole is provided with the arc supporting pad that matches with the patient dentition, fixed block upper portion is provided with the screw with the perpendicular intercommunication of through-hole, be provided with the elasticity screw rod of fixed regulation pole position in the screw.

Preferably, the cover bag is an inflatable cover bag, and the pressure measuring air bag and the inflation port are connected outside the inflatable cover bag.

Preferably, the laryngeal mask body is further provided with a detachable pressure limiting valve.

Preferably, the pressure limiting valve is connected with a conduit connection.

Preferably, the drainage branch grooves are symmetrically arranged on two sides of the drainage main groove.

Preferably, the drainage main groove is arranged at the front position of the midline of the back of the mask sac.

Preferably, the periphery of the airway tube is sleeved with a dental pad tube, and the dental pad tube is arranged at the front end of the fixing block.

Compared with the prior art, the utility model discloses there is following beneficial effect:

the novel medical laryngeal mask of the utility model is provided with the drainage main groove and the supporting groove at the back of the mask sac, so that more oral secretion around the laryngeal mask can be smoothly led out through the drainage tube, and the possibility of mistaken suction of the secretion is further reduced; the pressure limiting valve is added on the laryngeal mask main body, so that the occurrence of high airway pressure is avoided, the occurrence rate of flatulence is reduced, and the probability of adverse events such as reflux in operation, lung injury caused by high air pressure, nausea and vomiting after operation and the like is further reduced; in addition, the utility model is provided with a limiting mechanism outside the airway tube, which is used for limiting the depth of the mask sac, makes up the defects of unstable limiting fixing modes such as adhesive tape fixing, and the like in the prior art, improves the tube placing accuracy, lightens the acting force between the front end of the laryngeal mask and the laryngeal tissues, and reduces the occurrence of adverse reactions such as ventilation and air leakage, postoperative laryngeal discomfort, and the like; the back of the mask sac is provided with the drainage main groove and the branch groove, so that the compliance of the front part of the mask sac is improved, and the oral mucosa injury caused by the tube placing process can be reduced; the laryngeal mask is simple in structure and convenient to use, and can greatly reduce pain of a patient in the application process of the laryngeal mask.

Drawings

Fig. 1 is a schematic structural view of the novel medical laryngeal mask of the present invention.

In the figure: the laryngeal mask comprises a laryngeal mask body 100, a mask sac 110, an esophagus inlet 111, a drainage main groove 112, a drainage branch groove 113, an airway tube 120, a drainage tube 130, a tube connector 140, a limiting mechanism 150, an arc-shaped supporting pad 151, a fixing block 152, a through hole 153, an adjusting rod 154, a screw hole 155, an elastic screw 156, a pressure measuring air bag and inflation port 160, a pressure limiting valve 170 and a bite-block tube 180.

Detailed Description

The present invention will be described more fully and clearly with reference to the accompanying drawings, which are incorporated in and constitute a part of this specification.

As shown in fig. 1, a novel medical laryngeal mask, including laryngeal mask body 100, laryngeal mask body 100 includes mask sac 110, airway pipe 120, drainage catheter 130 and pipe connector 140, mask sac 110 front end is equipped with esophagus entry 111, the back of mask sac 110 is provided with drainage main trough 112, drainage main trough 112 is the slot that mask sac 110 back set up, and keeps apart with mask sac 110 is inboard, esophagus entry 111 is connected to drainage main trough 112 one end, and drainage catheter 130 is connected to the other end, and esophagus entry 111 is used for drainage esophagus interior reflux vomitus, and drainage main trough 112 is used for drainage laryngeal mask dorsal peripheral secretion. The main body of the drainage catheter 130 is positioned in the airway catheter 120, the rear end of the drainage catheter 130 is penetrated by the airway catheter 120, the front end of the drainage catheter 130 passes through the inner side of the mask sac 110 and penetrates out of the back of the mask sac 110 to be communicated with the drainage main groove 112, the drainage catheter 130 and the esophagus inlet 111 are not communicated with the inner side of the mask sac 110 respectively, an esophagus drainage channel of the esophagus inlet 111-the drainage main groove 112-the drainage catheter 130 is formed, meanwhile, the drainage main groove 112 is communicated with the periphery of the back of the mask sac 110, and an oral secretion drainage channel can also be formed at the same time.

Cover bag 110 back still is provided with a plurality of drainage branch grooves 113, drainage branch groove 113 and drainage owner groove 112 intercommunication, drainage branch groove 113 symmetry sets up in drainage owner groove 112 both sides, drainage branch groove 113 can be leaf branch vein form, and drainage branch groove 113 and cover bag 110 are inboard not communicate.

The outer side of the airway tube 120 is provided with a limiting mechanism 150, the limiting mechanism 150 comprises a fixing block 152 arranged on the periphery of the airway tube 120, a through hole 153 is formed in the middle of the fixing block 152, an adjusting rod 154 capable of axially moving along the through hole 153 is arranged in the through hole 153, an arc-shaped supporting pad 151 matched with the dentition of a patient is arranged at one end, close to the mask pocket 110, of the adjusting rod 154, a soft rubber pad can be covered on the inner side of the arc-shaped supporting pad 151, the outer side surface of teeth can be better attached and protected, the left and right movement of the laryngeal mask body 100 is limited to a certain extent, the ventilation effect is affected, a screw hole 155 communicated with the through hole 153 is formed in the upper portion of the. Arc supporting pad 151 position control process: the tightening screw 156 is screwed to release the adjustment rod 154, the adjustment rod 154 is moved up and down to engage the arc support pad 151 with the dentition of the patient, and the tightening screw 156 is screwed to fix the adjustment rod 154. The operation process is simple, and the using effect is better.

The cover bag 110 is an inflatable cover bag, the inflatable cover bag 110 is externally connected with a pressure measuring air bag and an inflation port 160, the cover bag 110 can also be an inflatable cover bag, and the inflatable cover bag does not need to be externally connected with the pressure measuring air bag and the inflation port 160.

The laryngeal mask body 100 is also provided with a detachable pressure limiting valve 170. The pressure limiting valve 170 is connected with the catheter connector 140, the pressure limiting valve 170 is used for limiting airway pressure in the ventilation tube, and when the pressure in the airway exceeds the pressure limited by the pressure limiting valve in the ventilation process, the pressure limiting valve is in an open state, so that high airway pressure is avoided, the occurrence rate of flatulence is reduced, and the probability of adverse events such as reflux in the operation, lung injury caused by high air pressure, nausea and vomiting after the operation is reduced.

The drainage main groove 112 is arranged at the front end of the midline of the back of the mask sac 110 and is combined with the drainage branch groove 113, so that the front end of the mask sac 110 has better compliance, the mask sac 110 can be conveniently and smoothly placed, and the mucosa injury caused in the process of placing the tube is reduced.

The bite-block tube 180 is sleeved on the periphery of the endotracheal tube 120, and the bite-block tube 180 is disposed at the front end of the fixing block 152 and is a rubber device with certain elasticity, so that the bite force between the teeth and the endotracheal tube 120 can be buffered, and the teeth injury can be reduced.

According to the structure of the utility model, the drainage main groove is arranged at the back of the mask sac of the novel medical laryngeal mask, so that more oral secretion around the laryngeal mask can be smoothly led out through the drainage tube, and the possibility of mistaken suction of the secretion is further reduced; a pressure limiting valve is added on the laryngeal mask main body, so that discomfort caused by overhigh air pressure in the application process of the laryngeal mask of a patient is avoided; the utility model is provided with a limiting mechanism outside the airway catheter, which has adjustability and is used for limiting the depth of the placement of the mask sac, and plays a role in left and right fixation to a certain extent, thereby making up the defects of unstable limiting fixation modes such as adhesive tape fixation and the like in the prior art, improving the accuracy of the placement of the catheter, and reducing the occurrence of adverse reactions such as ventilation and air leakage, discomfort of throat after operation and the like; the drainage main groove and the branch groove are arranged on the back of the mask sac, so that the compliance of the front part of the mask sac is improved, and the oral mucosa injury caused by the tube placing process can be reduced; the laryngeal mask is simple in structure, convenient to use and easy to place, and can greatly reduce pain of a patient caused in the application process of the laryngeal mask.

Claims

1. The utility model provides a novel medical laryngeal mask, a serial communication port, including the laryngeal mask body, the laryngeal mask body includes cover bag, air flue pipe, drainage catheter and pipe joint, the cover bag front end is equipped with the esophagus entry, cover bag back is provided with drainage owner's groove, the esophagus entry is connected to drainage owner's groove one end, and drainage catheter is connected to the other end.

2. The novel medical laryngeal mask of claim 1, wherein the drainage catheter main body is located in the airway catheter, the front end of the drainage catheter main body penetrates out of the back of the mask sac and is communicated with the drainage main groove, and the drainage main groove, the drainage catheter and the esophagus inlet are not communicated with the inner side of the mask sac respectively.

3. The novel medical laryngeal mask according to claim 1 or 2, wherein the back of the mask sac can be further provided with a plurality of drainage branch grooves, the drainage branch grooves are communicated with the drainage main groove, and the drainage branch grooves are not communicated with the inner side of the mask sac.

4. The novel medical laryngeal mask according to claim 1, wherein a limiting mechanism is arranged on the outer side of the airway tube, the limiting mechanism comprises a fixing block arranged on the periphery of the airway tube, a through hole is formed in the middle of the fixing block, an adjusting rod capable of moving axially along the through hole is arranged in the through hole, an arc-shaped supporting pad matched with the dentition of the patient is arranged at one end, close to the mask sac, of the adjusting rod, a screw hole vertically communicated with the through hole is formed in the upper portion of the fixing block, and a tightening screw for fixing the position of the adjusting rod is arranged in the screw hole.

5. The novel medical laryngeal mask of claim 1, wherein the mask cuff is an inflatable mask cuff that is externally connected to a pressure sensing cuff and an inflation port.

6. The novel medical laryngeal mask of claim 1, wherein a detachable pressure limiting valve is further provided on the laryngeal mask body.

7. The novel medical laryngeal mask of claim 6, wherein the pressure limiting valve is connected with a catheter adapter.

8. The novel medical laryngeal mask of claim 3, wherein the drainage branch grooves are symmetrically arranged on two sides of the drainage main groove.

9. The novel medical laryngeal mask according to claim 1, 2 or 8, characterised in that the main drainage groove opens at the midline front position of the back of the mask pocket.

10. The novel medical laryngeal mask according to claim 4, wherein a bite block tube is sleeved on the periphery of the airway tube, and the bite block tube is arranged at the front end of the fixing block.