CN217041007U - Low-damage ventilation catheter - Google Patents

Abstract

The utility model discloses a low-damage ventilation catheter, which comprises a cover body and a main body tube, wherein the cover body is attached to the surface of the upper respiratory tract and the throat of a human body, the main body tube is connected with one end of the cover body, the cover body is of a ventral side surface and is provided with an open cavity structure, the cover body can be automatically shaped according to the structural characteristics of throat anatomy, a ventilation channel and a drainage channel are arranged in the main body tube along the length direction of the main body tube, the ventilation channel is communicated with the cover body, the front end of the cover body is provided with a drainage port, the drainage channel penetrates through the cover body and is communicated with the drainage port, and the drainage channel and the cavity structure of the cover body are mutually independent; a supporting piece for supporting the cover body is arranged in the cavity structure of the cover body. The design of the independent drainage channel of the laryngeal mask reduces the aspiration caused by the backflow of the esophagus, and the laryngeal mask is safer in clinical application; the laryngeal mask has an airway exploration function, and meets the requirements of exploration, diagnosis and treatment of clinical upper airways; at the same time, can be used as a tool for guiding the tracheal intubation in the case of an unexpectedly difficult airway.

Description

Low-damage ventilation catheter

Technical Field

The utility model relates to a medical treatment consumptive material technical field especially relates to a low damage pipe of ventilating.

Background

The laryngeal mask is an effective means for patient airway management, and is widely applied in clinic particularly because the laryngeal mask can effectively establish a safe artificial airway in general anesthesia surgery. Currently, there are many improved laryngeal masks in clinical use, but the laryngeal masks of the prior art still have more disadvantages. Firstly, the single-tube laryngeal mask does not have the structural design of esophagus drainage, so that the single-tube laryngeal mask has the risks of flatulence and gastric reflux and aspiration in the ventilation process; secondly, the single-tube laryngeal mask is of an inflatable air bag type structure, a free type inflating device is designed for inflating the air bag, a doctor needs a professional assistant to assist the doctor in inflating the air bag when the laryngeal mask is used, clinical application is very inconvenient, and the establishment of a rapid artificial airway is not facilitated. In addition, a double-tube laryngeal mask is widely used clinically, although the esophagus drainage tube is added, the double-tube laryngeal mask is still of an inflatable air bag type structure, so that the air bag inflation management process still exists, particularly, the time for inflating the air bag is delayed in the emergency airway establishing process, and the artificial airway is not favorable for being quickly established. In addition, in the process of inflation, the control of the air pressure of the air bag is difficult to master, certain risk exists when the judgment is carried out by simply depending on the experience of a doctor, and if the doctor operates improperly, the problem that the pressure in the air bag is too high is easily caused, so that the risk of edema of the mucous membrane of the laryngopharynx part of a patient in the process of ventilation is increased, and the probability of postoperative laryngopharynx pain of the patient is easily increased.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a low damage ventilation pipe.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: a low-damage ventilation catheter comprises a cover body and a main body tube, wherein the cover body is attached to the surface of the upper respiratory tract and the throat of a human body, the main body tube is connected with one end of the cover body, the cover body is of a cavity structure with an opening on the ventral side and can be automatically shaped according to the anatomical structure characteristics of the throat, a ventilation channel and a drainage channel are arranged in the main body tube along the length direction of the main body tube, the ventilation channel is communicated with the cover body, a drainage port is arranged at the front end of the cover body, the drainage channel penetrates through the cover body and is communicated with the drainage port, and the drainage channel and the cavity structure of the cover body are mutually independent; a supporting piece for supporting the cover body is arranged in the cavity structure of the cover body.

Preferably, a connecting piece is fixedly connected in the cavity structure of the cover body, a vent hole communicated with the vent channel is formed in the connecting piece, the vent hole is positioned below the opening at the top end of the cover body, a flow guide hole is further formed in the connecting piece and communicated with the vent hole and the cavity structure of the cover body, the outline shape of the supporting piece is matched with the inner cavity of the cover body, the edge of the opening of the cover body is fixedly connected to the outer side wall of the supporting piece, a through hole matched with the vent hole is formed in the supporting piece, the edge of the through hole is flush with the top of the connecting piece, and the edge of the through hole is fixedly connected with the connecting piece; the support piece bottom is contradicted the connecting piece setting, and the support piece bottom is seted up the passageway that is linked together with the cavity structure of the cover body and the passageway is also linked together with the water conservancy diversion hole.

Preferably, the passageway including the groove of stepping down, the groove of stepping down sets up along support piece length direction, the hole of stepping down has been seted up to the front end in the groove of stepping down, the hole of stepping down set up for the V type.

Preferably, the channel further comprises air guide grooves which are located on two sides of the abdicating hole and are circumferentially arranged along the edge of the supporting piece.

Preferably, the top of the connecting piece close to one end of the main body pipe is fixedly connected with an epiglottis table arranged in an arc shape, and the epiglottis table is arranged by protruding out of the top surface of the supporting piece.

Preferably, the vent channel and the drainage channel are independent from each other, the longitudinal section of the vent channel is oval, one end of the main pipe, which is far away from the cover body, is provided with a connection pipe, the connection pipe comprises a vent pipe communicated with the vent channel, the connection pipe further comprises a drainage pipe communicated with the drainage channel, and the drainage pipe is fixedly connected to the outer side wall of the vent pipe.

Preferably, the main tube, the cover body and the connecting piece are integrally molded and made of materials with the same Shore hardness, wherein the Shore hardness of the materials is B, and B is less than or equal to 75D; the supporting piece is an integrally formed prefabricated piece, and the material of the supporting piece is selected from a material with Shore hardness of A, wherein A is less than or equal to 45D.

Preferably, the cover body is along the contained angle of the extension line of length direction axis and main part pipe along length direction axis for alpha, and the scope of alpha is: alpha is more than or equal to 100 degrees and less than or equal to 150 degrees.

Preferably, a first step is arranged on the inner wall of the ventilation channel close to one end of the ventilation pipe, the end part of the ventilation pipe is matched with the first step, and the ventilation pipe is inserted into the ventilation channel; the inner wall of the drainage channel, which is close to one end of the drainage tube, is provided with a second step, the end part of the drainage tube is matched with the second step, and the drainage tube is inserted into the drainage channel.

Preferably, the connection pipe and the main body pipe are integrally formed respectively, and the shore hardness of the material of the main body pipe is smaller than that of the material of the connection pipe.

The utility model discloses the beneficial effect who has does: (1) the laryngeal mask has the esophagus drainage function, the missuction caused by esophagus backflow is reduced due to the design of the independent drainage channel, and the laryngeal mask is safer in clinical application; the laryngeal mask has an airway exploration function, and the flexible video laryngoscope can enter the airway through the ventilation channel through the glottis, so that the requirements of exploration and diagnosis and treatment of the clinical upper airway are met; at the same time, can be used as a tool for guiding the tracheal intubation in the case of an unexpectedly difficult airway.

(2) This laryngeal mask adopts the structural design who combines together moulding in advance and automatic moulding, the cover body can be according to the automatic moulding of oropharyngeal cavity structural feature and laminating patient's pharyngeal surface, realize sealed ventilating, from inflating/exhaust formula cavity structures realize aerifing and exhausting to cover body cavity structures according to the rhythm of patient's spontaneous breathing, thereby realize the automatic adjustment of cover body volume, make the cover body can be in the sufficient state intermittently, this just makes the cover body reduce the pressure of patient's pharyngeal surrounding tissue, the continuation oppression to patient's local tissue has been reduced, the risk that the oppression nature damage takes place for patient's local tissue has been reduced.

(3) Through setting up the air guiding gutter, stepping down the groove and stepping down the hole and be convenient for carry out the drainage to the gas that gets into among the support piece to with these gas drainage to each region of the cover body, make each regional homoenergetic of the cover body realize aerifing or exhausting fast, improved and aerifyd and carminative efficiency.

(4) The reverse folding of the epiglottis of the patient is reduced by arranging the epiglottis table, and the ventilation safety is improved to a certain extent.

Generally, the utility model provides a laryngeal mask is simple, swift in clinical application, and is littleer to the patient damage, and it can be fast, safe, establish artifical air duct effectively, can improve medical personnel to the management level of artifical air duct.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic view of the connection relationship between the cover body and the main tube of the present invention;

FIG. 3 is a schematic view of the connection relationship between the cover and the main tube of the present invention 2;

FIG. 4 is a schematic view of the connection relationship between the cover body and the main tube of the present invention shown in FIG. 3;

fig. 5 is a schematic structural view of the supporting member of the present invention;

fig. 6 is a schematic view of the back side structure of the supporting member of the present invention;

fig. 7 is a schematic structural view of the joint pipe of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

A low-damage ventilation catheter is disclosed, as shown in fig. 1-4, which comprises a cover body 1 attached to the surface of the upper respiratory tract and throat of a human body and a main body tube 2 connected with one end of the cover body 1, wherein the cover body 1 is a cavity structure with an opening 3 on the ventral side and can be automatically shaped according to the anatomical structure characteristics of throat, the opening 3 of the cover body 1 can be selected from but not limited to a circle, the area of the opening 3 is smaller than that of the ventral side of the cover body 1, an air passage 5 and a drainage passage 6 are arranged in the main body tube 2 along the length direction of the main body tube, the air passage 5 is communicated with the cover body 1, a drainage port 7 is arranged at the front end of the cover body 1, the drainage passage 6 penetrates through the cover body 1 and is communicated with the drainage port 7, the drainage passage 6 is mutually independent from the cavity structure of the cover body 1, in this embodiment, in order to realize mutual independence of the drainage passage 6 from the cavity structure of the cover body 1, a drainage cavity 8 communicated with the drainage passage 6 is arranged at the bottom of the inner wall of the cover body 1, the bottom setting of the 1 inner wall of the outstanding cover body in drainage chamber 8, the front end and the drainage mouth 7 of drainage chamber 8 are linked together, and drainage chamber 8 has communicated drainage channel 6 and drainage mouth 7 promptly, and drainage mouth 7 carries out the shutoff nature with patient's esophagus mouth and coincide. By arranging the drainage port 7, the drainage channel 6 and the drainage cavity 8, the gastric tube is convenient to prevent the occurrence of flatulence and gastric reflux, the gastric contents can be drained and cleaned in real time, and the occurrence probability of aspiration is reduced. A supporting piece 12 used for supporting the cover body 1 is installed in the cavity structure of the cover body 1, and the supporting piece 12 can support the cover body 1 to a certain extent, so that the sealing between the throat part of a patient and the cover body 1 is facilitated.

Specifically, as shown in fig. 1-6, a connecting member 9 is fixedly connected in the cavity structure of the cover body 1, a vent hole 10 communicated with the ventilation channel 5 is formed in the connecting member 9, the vent hole 10 is located below the opening 3 at the top end of the cover body 1, a flow guide hole 11 is further formed in the side wall of the connecting member 9, the position of the flow guide hole 11 is preferably close to one side of the ventilation channel 5, the flow guide hole 11 is communicated with the vent hole 10 and the cavity structure of the cover body 1, the contour shape of the supporting member 12 is matched with the internal cavity of the cover body 1, the edge of the opening 3 of the cover body 1 is fixedly connected to the outer side wall of the supporting member 12, a through hole 13 matched with the vent hole 10 is formed in the ventral side surface of the supporting member 12, the edge of the through hole 13 is flush with the top of the connecting member 9, the edge of the through hole 13 is fixedly connected with the connecting member 9, the connecting member 9 is arranged at the bottom of the supporting member 12, and an arc-shaped notch 14 matched with the connecting member 9 is formed in the supporting member 12, a channel communicated with the cavity structure of the cover body 1 is arranged in the supporting piece 12, and meanwhile, the channel is also communicated with the flow guide hole 11. Through the arrangement, the vent holes 10 of the laryngeal mask are communicated with the vent channel 5, meanwhile, the vent holes 10 are communicated with the flow guide holes 11, and gas enters the cavity structure of the mask body 1 through the vent holes 10 and the flow guide holes 11, so that the mask body 1 is inflated. Specifically, oxygen may be independently ventilated and de-gassed through the ventilation channel 5 and through the ventilation holes 10 and the patient's glottis; meanwhile, the volume of the mask body 1 can be adjusted according to self-help respiration of a patient, when the patient is in a positive pressure gas supply state, gas enters the cavity structure of the mask body 1 through the gas port and the flow guide hole 11, so that the cavity structure in the mask body 1 is in a filling state, the mask body 1 expands to increase the pressure applied to the mucous membrane of the throat of the patient, and the sealing performance is enhanced; when the patient is in the expiration state, the air pressure reduces in the cavity structure of the cover body 1, and the gas in the cavity structure of the cover body 1 is discharged through flow guide hole 11 for the cover body 1 is in the state of collapsing, and the pressure that cover body 1 applyed to mucous membrane tissue around the patient's laryngopharynx reduces, thereby has reduced the continuation oppression of the cover body 1 to patient's laryngopharynx, has reduced the risk that the oppression nature harmd takes place for patient's local tissue.

Further, as shown in fig. 5 and 6, the channel include with the groove 15 of stepping down of drainage chamber 8 looks adaptation, the groove 15 of stepping down sets up along support piece 12 length direction, the hole 16 of stepping down with drainage chamber 8 looks adaptation is seted up to the front end of groove 15 of stepping down, the hole 16 of stepping down set up for the V type. The arrangement of the abdicating holes 16 and the abdicating grooves 15 can abdicating the drainage cavity 8, so that the arrangement of the drainage cavity 8 is convenient, and the arrangement of the abdicating holes 16 and the abdicating grooves 15 can ensure that the supporting part 12 has a partial hollow structure, thereby reducing the weight and the continuous oppression on the local tissues of the patient possibly caused by solid materials; in addition, the gas passing through the diversion holes 11 is diverted to the cavity structure of the cover body 1 through the diversion of the abdicating grooves 15 and the abdicating holes 16, so that each area of the cover body 1 can be filled and shaped, and the sealing effect is ensured; meanwhile, the arrangement of the abdicating groove 15 and the abdicating hole 16 reduces the input of the material of the support member 12, thereby reducing the material cost to a certain extent.

Further, as shown in fig. 5 and 6, the passage further includes air guide grooves 17 located at both sides of the escape hole 16 and circumferentially arranged along the edge of the support 12. The hollow proportion of support piece 12 has further been improved through setting up air guiding gutter 17, the support nature oppression of support piece 12 to patient's local tissue has been reduced, and simultaneously, air guiding gutter 17 has further enlarged the circulation space of gas in support piece 12, and then improve the efficiency that the gas is abundant and discharged in the cover body 1, the gas that gets into in support piece 12 through water conservancy diversion hole 11 promptly is carried to the cavity of the cover body 1 through groove 15 and the hole 16 of stepping down, and simultaneously, partial gas is carried to the cavity of the cover body 1 through air guiding gutter 17 in addition, the efficiency that the cavity of the cover body 1 was filled and was collapsed has been improved.

Further, as shown in fig. 1 to 4, an epiglottis stage 18 is fixedly attached to the top of the coupling 9 near one end of the main tube 2, and the epiglottis stage 18 is disposed to protrude from the top surface of the support 12. The epiglottis table 18 is preferably arranged in an arc shape, and the epiglottis table 18 can effectively support and guide the sliding of the epiglottis cartilage due to the fact that the epiglottis table 18 protrudes out of the top surface of the support 12, the phenomenon that the epiglottis is folded reversely is reduced, the probability of the problem of unsmooth ventilation caused by the blockage of the vent hole 10 close to the main body pipe 2 is reduced, the ventilation safety is improved, the high-pressure oxygen cloud area of the patient sound door opening is enlarged, and the effect of air passage sealing ventilation is enhanced.

Optionally, the ventilation channel 5 and the drainage channel 6 are independent of each other, the longitudinal section of the ventilation channel 5 is oval, aspiration caused by esophagus reflux is prevented, clinical application is safer, and meanwhile the oval ventilation channel 5 facilitates the passing of a tracheal cannula and a fiberbronchoscope, so that lung exploration and diagnosis and treatment are facilitated. One end of the main body pipe 2, which is far away from the cover body 1, is provided with a connection pipe, the connection pipe comprises a vent pipe 19 which is communicated with the vent channel 5, the connection pipe also comprises a drainage pipe 20 which is communicated with the drainage channel 6, and the drainage pipe 20 is fixedly connected on the outer side wall of the vent pipe 19. The laryngeal mask has the functions of probing the airway and guiding the tracheal intubation to be placed in by arranging the connecting pipe, and when the laryngeal mask is used, the soft video laryngoscope and the tracheal intubation can enter the airway through the ventilation channel 5 of the connecting pipe through the glottis, so that the requirements of probing, diagnosing and emergency intubation airway of clinical airway are met. Meanwhile, the functions of oxygen supply and esophagus drainage of the breathing machine can be realized through the connecting pipe.

Optionally, the main tube 2, the cover body 1, and the connecting piece 9 are integrally formed and made of a material selected from a plastic product with shore hardness of B, wherein B is not more than 75D, and the material is selected from but not limited to silica gel, PVC, and the like meeting the shore hardness requirement. By selecting the soft mask body 1 and the support member 12, the mask can be effectively attached to the mucous membrane folds at the periphery of the glottis of a patient, so that a sealing ring and an isolated ventilation area are formed, and the airway passes through a high-pressure airflow channel. The support member 12 is an integrally formed prefabricated member, and the material thereof is selected from a material with shore hardness of a, a is less than or equal to 45D, and may be selected from, but not limited to, silica gel, PVC and the like meeting the shore hardness requirement.

Optionally, an included angle between the central axis of the cover body 1 in the length direction and the extension line of the main tube 2 in the length direction is α, and the range of α is: alpha is more than or equal to 100 degrees and less than or equal to 150 degrees, preferably, alpha is more than or equal to 100 degrees and less than or equal to 130 degrees, and the back side surface of the cover body is smoothly arranged, thereby being convenient for the operation of placing the pipe.

Further, as shown in fig. 4 and 7, a first step 21 is provided on the inner wall of the vent passage 5 near one end of the vent pipe 19, the end of the vent pipe 19 is matched with the first step 21, and the vent pipe 19 is inserted into the vent passage 5; the inner wall of the drainage channel 6 near one end of the drainage tube 20 is provided with a second step 22, the end part of the drainage tube 20 is matched with the second step 22, and the drainage tube 20 is inserted in the drainage channel 6. Realize being connected between breather pipe 19 and air channel 5, drainage tube 20 and the drainage channel 6 through the mode of pegging graft, simultaneously, linking pipe, main part pipe 2 integrated into one piece respectively, and the shore hardness of main part pipe 2 material is less than the shore hardness of linking pipe material, and the material of main part pipe 2 is soft in the material of linking pipe promptly for the connected mode of pegging graft is more firm.

The above embodiments are not intended to limit the shape, material, structure, etc. of the present invention in any form, and all of the technical matters of the present invention belong to the protection scope of the present invention to any simple modification, equivalent change and modification of the above embodiments.

Claims (10)

1. The utility model provides a low damage ventilation catheter, includes the cover body of laminating mutually with human upper respiratory tract throat surface and the main part pipe that is connected with cover body one end, its characterized in that: the mask body is of a cavity structure with an opening on the ventral side and can be automatically shaped according to the anatomical structure characteristics of throats, an air passage and a drainage passage are arranged in the main body tube along the length direction of the main body tube, the air passage is communicated with the mask body, the front end of the mask body is provided with a drainage port, the drainage passage penetrates through the mask body and is communicated with the drainage port, and the drainage passage and the cavity structure of the mask body are mutually independent; a supporting piece for supporting the cover body is arranged in the cavity structure of the cover body.

2. The low damage ventilation catheter of claim 1, wherein: the connecting piece is fixedly connected in the cavity structure of the cover body, the connecting piece is internally provided with a vent hole communicated with the vent channel, the vent hole is positioned below the opening at the top end of the cover body, the connecting piece is also provided with a flow guide hole, the flow guide hole is communicated with the vent hole and the cavity structure of the cover body, the outline shape of the supporting piece is matched with the inner cavity of the cover body, the edge of the opening of the cover body is fixedly connected on the outer side wall of the supporting piece, the supporting piece is provided with a through hole matched with the vent hole, the edge of the through hole is flush with the top of the connecting piece, and the edge of the through hole is fixedly connected with the connecting piece; the support piece bottom is contradicted the connecting piece setting, and the support piece bottom is seted up the passageway that is linked together with the cavity structure of the cover body and the passageway is also linked together with the water conservancy diversion hole.

3. The low damage ventilation catheter of claim 2, wherein: the passageway including the groove of stepping down, the groove of stepping down sets up along support piece length direction, the hole of stepping down has been seted up to the front end in the groove of stepping down, the hole of stepping down set up for the V type.

4. The low damage ventilation catheter of claim 3, wherein: the passageway still including being located the hole both sides of stepping down and along the air guiding gutter of support piece edge circumference setting.

5. A low damage ventilation catheter as claimed in claim 2, wherein: the top of the connecting piece close to one end of the main body pipe is fixedly connected with an epiglottis table which is arranged in an arc shape, and the epiglottis table protrudes out of the top surface of the supporting piece.

6. A low damage ventilation catheter as claimed in any one of claims 1-5, wherein: the ventilation channel and the drainage channel are mutually independent, the longitudinal section of the ventilation channel is oval, one end, away from the cover body, of the main body pipe is provided with a connection pipe, the connection pipe comprises a ventilation pipe communicated with the ventilation channel, the connection pipe further comprises a drainage pipe communicated with the drainage channel, and the drainage pipe is fixedly connected to the outer side wall of the ventilation pipe.

7. A low damage ventilation catheter as claimed in any one of claims 1-5, wherein: the main body tube, the cover body and the connecting piece are integrally formed and the materials of the main body tube, the cover body and the connecting piece are selected from materials with the same Shore hardness, the Shore hardness of the materials is B, and B is less than or equal to 75D; the supporting piece is an integrally formed prefabricated piece, and the material of the supporting piece is selected from a material with Shore hardness of A, wherein A is less than or equal to 45D.

8. A low damage ventilation catheter as claimed in claim 7, wherein: the cover body is along the contained angle of length direction's axis and main part pipe along the extension line of length direction axis for alpha, and alpha's scope is: alpha is more than or equal to 100 degrees and less than or equal to 150 degrees.

9. The low damage ventilation catheter of claim 6, wherein: the inner wall of the ventilation channel close to one end of the ventilation pipe is provided with a first step, the end part of the ventilation pipe is matched with the first step, and the ventilation pipe is inserted into the ventilation channel; the inner wall of the drainage channel, which is close to one end of the drainage tube, is provided with a second step, the end part of the drainage tube is matched with the second step, and the drainage tube is inserted into the drainage channel.

10. The low damage ventilation catheter of claim 9, wherein: the connecting pipe and the main body pipe are respectively integrally formed, and the Shore hardness of the material of the main body pipe is smaller than that of the material of the connecting pipe.

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