CN211486092U

CN211486092U - Three-cavity flushable swing type sealed inflation-free laryngeal mask airway catheter

Info

Publication number: CN211486092U
Application number: CN201922068946.2U
Authority: CN
Inventors: 方峥评; 刘学胜
Original assignee: Anhui Exploration Medical Device Technology Co ltd
Current assignee: Anhui Exploration Medical Device Technology Co ltd
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2020-09-15
Anticipated expiration: 2029-11-26

Abstract

The utility model discloses a three-cavity flushable oscillating type sealing inflation-free laryngeal mask airway catheter, which comprises a mask head and a catheter, wherein the mask head is provided with an airway cavity, a first stomach cavity, a second stomach cavity, an airway communicating port and an esophagus communicating port, the airway cavity is communicated with the airway communicating port, and the first stomach cavity is communicated with the second stomach cavity and is communicated with the esophagus communicating port; the catheter is formed with an airway cavity channel, a first gastric cavity channel and a second gastric cavity channel; the chamber wall of air flue cavity includes the diapire, from the diapire around to the first lateral wall that its one side extended and from first lateral wall to diapire middle part extension and gather together in order to form the second lateral wall of air flue intercommunication mouth, the flexibility degree of second lateral wall is greater than the flexibility degree of first lateral wall. The utility model discloses improved the cover head structure of laryngeal mask, improved laryngeal mask swinginess ability.

Description

Three-cavity flushable swing type sealed inflation-free laryngeal mask airway catheter

Technical Field

The utility model relates to a laryngeal mask technical field especially relates to a three chamber can wash oscillating sealed laryngeal mask airway pipe of exempting from to aerify.

Background

The medical laryngeal mask is a medical product which is frequently used in the processes of emergency resuscitation, general anesthesia and the like in modern clinic and is used for quickly establishing an artificial airway, and is mainly used for keeping the airway smooth and ensuring the ventilation and oxygenation of a patient. The traditional three-cavity flushable swinging type sealing inflation-free laryngeal mask comprises a mask head and a catheter connected with the mask head, the mask head of the laryngeal mask is poor in compliance, the swinging angle and the swinging range are small, in the treatment process, the mask head of the laryngeal mask extrudes the airway wall or the laryngeal wall of a patient for a long time to press the tissues of the patient, the congestion injury problem is easily caused, and the stimulation is generated to the patient.

SUMMERY OF THE UTILITY MODEL

The main object of the utility model is to provide a three-cavity flushable oscillating type sealing inflation-free laryngeal mask airway tube, which aims to improve the compliance of the laryngeal mask and the oscillating ability so as to avoid the problem that the mask head of the laryngeal mask extrudes the airway wall or the laryngeal wall to the tissue damage of the laryngeal mask for a long time.

In order to realize the purpose, the utility model provides a three-cavity flushable swing type sealing inflation-free laryngeal mask airway catheter, which comprises a mask head and a catheter communicated with the mask head,

the mask head is provided with an airway cavity, a first stomach cavity, a second stomach cavity, an airway communicating port and an esophagus communicating port, the airway cavity is communicated with the airway communicating port, and the first stomach cavity is communicated with the second stomach cavity and communicated with the esophagus communicating port;

the catheter is provided with an airway cavity channel, a first gastric cavity channel and a second gastric cavity channel, the first end of the airway cavity channel is communicated with the airway cavity, the second end of the airway cavity channel is used for being connected with a breathing machine, the first end of the first gastric cavity channel is communicated with the first gastric cavity, the first end of the second gastric cavity channel is communicated with the second gastric cavity, and the second end of the first gastric cavity channel or the second gastric cavity channel is used for being connected with flushing equipment;

the cavity wall of the air passage cavity comprises a bottom wall, a first side wall and a second side wall, wherein the first side wall extends to one side of the bottom wall from the periphery of the bottom wall, the second side wall extends to the middle of the bottom wall and gathers together to form the air passage communication opening, and the flexibility of the second side wall is greater than that of the first side wall.

In one embodiment, the flexibility of the second side wall gradually increases from the connection with the first side wall toward the airway communication opening.

In one embodiment, the wall thickness of the second side wall gradually decreases from the junction with the first side wall toward the air passage communication opening, so that the flexibility of the second side wall gradually increases from the junction with the first side wall toward the air passage communication opening.

In one embodiment, the flexibility of the first side wall increases from the junction with the bottom wall towards the second side wall.

In one embodiment, the wall thickness of the first side wall decreases from the junction with the bottom wall towards the second side wall, such that the flexibility of the first side wall increases from the junction with the bottom wall towards the second side wall.

In one embodiment, the guide pipe and the cover head are integrally formed, and the whole guide pipe and the cover head are arranged in an arc shape;

the hood head comprises a supporting arm integrally connected with the catheter, and the first gastric cavity and the second gastric cavity are symmetrically arranged on two sides of the supporting arm;

the airway cavity is located on the inner ring side of the support arm;

and a stretching part connected with the guide pipe is arranged on one side of the cover head close to the guide pipe.

In one embodiment, the stretching portion has an elongated arc shape, and the arc size of the stretching portion is consistent with the arc size of the corresponding position of the catheter.

In one embodiment, the wall thickness of the wall of the airway cavity on the side close to the inner ring of the catheter is smaller than the wall thickness of the wall on the side adjacent to the airway cavity.

In one embodiment, a joint is embedded in one end of the catheter far away from the hood head, and a connecting pipe is embedded in the second end of the first gastric cavity channel or the second gastric cavity channel through the joint and used for being connected with a suction device.

In one embodiment, the connecting pipe is arranged in an L shape.

The technical scheme of the utility model in, because can wash the cavity wall of the overhead air flue cavity of cover of swing type sealed inflation-free laryngeal mask air flue pipe with three chambeies and set up the diapire, extend and gather together the second lateral wall in order to form air flue intercommunication mouth from the first lateral wall to its one side all around to the diapire and from the first lateral wall to the diapire middle part, the flexibility degree of second lateral wall is greater than the flexibility degree of first lateral wall, make the air flue cavity can be relative patient air flue mouth swing at the operation in-process, can adapt to the air flue mouth of different patient different shapes, the cover can be along with the change of patient air flue mouth and swing the adjustment during patient breathes, the compliance of laryngeal mask and wobbling ability have been improved, the problem of the long-time crowded air flue wall of cover of laryngeal mask or throat wall in order to its tissue damage has been avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural view of an embodiment of a three-chamber flushable swing type sealing inflation-free laryngeal mask airway tube of the present invention;

FIG. 2 is a schematic view of the structure of the mask head in an embodiment of the triple-chamber flushable swing type sealing inflation-free laryngeal mask airway tube of the present invention;

fig. 3 is a schematic structural view of another view angle of the mask head in an embodiment of the three-cavity flushable swing type sealing inflation-free laryngeal mask airway catheter of the present invention;

fig. 4 is a schematic structural diagram of a joint and a connecting pipe in an embodiment of the triple-cavity flushable swing type sealing inflation-free laryngeal mask airway tube of the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				10	Cover head	20	Catheter tube
11	Stretching part	10A	Airway cavity
				10B₁	First gastric cavity	10B₂	Second gastric cavity
10C	Airway communicating port	10D	Esophagus communicating port
				20A	Airway cavity passage	20B₁	First gastric cavity channel
20B₂	Second gastric cavity passage	30	Joint
				40	Connecting pipe	111	Handle of hand grip
101	Bottom wall	102	First side wall
				103	Second side wall	201	Support arm

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, if appearing throughout the text, "and/or" is meant to include three juxtaposed aspects, taking "A and/or B" as an example, including either the A aspect, or the B aspect, or both A and B satisfied aspects. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The wall thickness of the airway cavity of the existing three-cavity sealing inflation-free laryngeal mask adopts a uniform design, the swinging capability of the mask head is poor in the treatment process, medical workers are very troublesome to adjust the position of the mask head, and easily stimulate patients to cause discomfort to the patients.

Therefore, the utility model provides a three-cavity flushable swing type sealed inflation-free laryngeal mask airway tube.

Referring to fig. 1 to 3, in an embodiment of the present invention, the three-chamber flushable swing type sealing inflation-free laryngeal mask airway tube includes a mask head 10 and a tube 20 communicating with the mask head 10. The mask head 10 is formed with an airway cavity 10A and a first stomach cavity 10B₁Second gastric cavity 10B₂An airway communication port 10C and an esophagus communication port 10D. The airway chamber 10A is communicated with an airway communicating port 10C for communicating with the airway of a patient; first gastric lumen 10B₁And a second gastric cavity 10B₂Is communicated with the esophagus communication port 10D and is used for being communicated with a patientThe esophagus is communicated with each other. Wherein, the airway communicating port 10C can be set as a nearly elliptical opening matched with the shape of the airway of the human body; the esophagus communicating opening 10D can be an approximately elliptical opening matched with the shape of the human esophagus opening, and the middle of the bottom side of the opening is inwards sunken. The catheter 20 is formed with an airway passage 20A, a first gastric passage 20B₁And a second gastric lumen channel 20B₂A first end of airway cavity channel 20A is in communication with airway cavity 10A, a second end of airway cavity channel 20A is for connection to a ventilator, and a first gastric cavity channel 20B₁First end of and first gastric cavity 10B₁Communicating, second gastric lumen passage 20B₂First end and second gastric cavity 10B₂Communicating, first gastric lumen passage 20B₁Or the second gastric lumen passage 20B₂For connection with the flushing device.

Referring mainly to fig. 2, in the present embodiment, the wall of the airway cavity 10A includes a bottom wall 101, a first sidewall 102 extending from the periphery of the bottom wall 101 to one side thereof, and a second sidewall 103 extending from the first sidewall 102 to the middle of the bottom wall 101 and converging to form an airway communicating opening 10C. Wherein the flexibility of the second sidewall 103 is greater than the flexibility of the first sidewall 102.

In the treatment process, airway chamber 10A's air flue intercommunication mouth 10C is linked together with patient's air flue mouth, and its air flue chamber 10A's chamber wall can extrude the air flue wall of its butt for a long time, because the utility model discloses three chambeies can wash the sealed flexibility degree that exempts from to aerify air flue chamber 10A's of laryngeal mask air flue pipe second lateral wall 103 is greater than first lateral wall 102, under the prerequisite that does not influence the sealed effect of laryngeal mask for mask head 10 can be patient's air flue mouth swing relatively, has improved the compliance of laryngeal mask and can swing ability, has avoided mask head 10 to extrude air flue wall or throat wall for a long time so that cause the tissue damage.

In some embodiments, the degree of flexibility of the second sidewall 103 at the edge of the airway communication port 10C of the airway chamber 10A gradually increases from the connection with the first sidewall 102 toward the airway communication port 10C. This can be achieved by providing materials with different degrees of flexibility, i.e. a softer material with greater flexibility is used at the second side wall 103.

Of course, it is also possible to realize the wall thickness by a gradual change in wall thickness, in which the wall thickness of the second side wall 103 gradually decreases from the junction with the first side wall 102 toward the air passage communication opening 10C, so that the flexibility of the second side wall 103 gradually increases from the junction with the first side wall 102 toward the air passage communication opening 10C. In this way, the flexibility of the airway communicating opening 10C of the airway cavity 10A is increased, so that the swinging performance and the compliance of the airway cavity 10A relative to the airway opening are enhanced, and the structure is relatively easy to produce and manufacture.

In some embodiments, to further enhance the swivability of the covering head 10, the flexibility of the first sidewall 102 may be set to gradually increase from the junction with the bottom wall 101 toward the second sidewall 103. Different amounts of flexibility of the first side wall 102 may be achieved by tapering the wall thickness of the first side wall 102 from the junction with the bottom wall 101 towards the second side wall 103.

It should be noted that, in designing and manufacturing, the mask head 10 of the laryngeal mask needs to have consistency in its entirety to reduce irritation to the patient, the junction of the bottom wall 101, the first side wall 102 and the second side wall 103 of the airway cavity should be provided as smooth as possible, the wall thickness of the junction should be provided consistently, and steps or burrs at the junction thereof should be reduced.

It can be understood that the laryngeal mask 10 has certain swinging property and can be suitable for different airway opening structures of different people; during the continuous breathing process of the patient, the mask head 10 can also swing and adjust along with the change of the airway opening so as to reduce the oppression of the airway wall tissue.

It should be noted that the airway cavity 10A may be of a non-enclosed design to further enhance the swinging and compliance of the mask head 10 and reduce the degree of squeezing of the airway wall tissue. Similarly, the first gastric cavity 10B₁And a second gastric cavity 10B₂The non-closed design can be adopted, so that the swinging performance and the compliance of the mask head 10 relative to the throat can be enhanced, the oppression of the mask head 10 to the wall tissue of the throat is relieved, the stimulation to a patient is reduced, and the experience of the operation is improved. Furthermore, the non-enclosed chamber design does not require inflation of the covering head 10, but rather can be restored to an expanded state by the elastic capability of the material itself to seal itThe food passage opening and the gas passage opening are simple and convenient to operate.

Further, referring mainly to fig. 1 and 3, the duct 20 is integrally formed with the cover head 10 and is integrally provided in an arc shape. The mantle head 10 comprises a support arm 201 integrally connected to the catheter 20, a first gastric cavity 10B₁And a second gastric cavity 10B₂Symmetrically arranged at two sides of the supporting arm 201; the airway cavity 10A is located on the inner annular side of the support arm 201. By the arrangement, medical staff can conveniently insert the laryngeal mask into the corresponding throat part in the patient body, and the operation is convenient.

Referring to fig. 1 and 2, in an embodiment, a side of the cover head 10 close to the conduit 20 is provided with a stretching portion 11 connected to the inner ring side wall of the conduit 20.

It can be understood that, in the process of inserting the mask head 10 of the laryngeal mask, medical staff can adjust the position of the mask head 10 of the laryngeal mask in a swinging mode by pulling the stretching part 11 during flushing operation, or adjust the position of the laryngeal mask in the process of inserting the laryngeal mask to ensure that the laryngeal mask is inserted in place, so that the laryngeal mask can be operated by the medical staff conveniently, the operation efficiency is improved, and meanwhile, the local oppression feeling or irritation feeling of a patient is reduced.

The shape of the stretching portion 11 is an elongated arc-like structure in the present embodiment, and the overall arc size can be made to coincide with the arc size at the position corresponding to the laryngeal mask tube 20. In other words, the shape of the device can be adapted to the shape of the throat corresponding to the abutment position in the patient's body, so as to reduce the compression thereof and avoid the generation of stress or irritation.

Here, the length and width of the stretching portion 11 can be appropriately set based on the convenience of the medical care personnel as much as possible while avoiding the irritation to the patient. The material of the stretching portion 11 may be a soft skin-friendly material similar to the material of the catheter 20 and may be a medical grade material.

Further, referring to fig. 2, in order to facilitate the stretching operation by the medical staff, a grip 111 for facilitating holding may be disposed at an end of the stretching portion 11 away from the covering head 10.

The grip 111 may be provided in a flat round shape to facilitate gripping. The thickness of the handle 111 can be gradually increased from the direction away from the cover head 10, so that the medical staff can judge whether to hold the handle 111 of the stretching part 11 by the touch feeling under the condition of weak light or difficult direct observation of the stretching part 11, and the operation efficiency is greatly improved. Compared with other shapes with edges and corners, the flat and round handle 111 has better holding feeling for medical care personnel, avoids the edges and corners from colliding with tissues for patients, and reduces the stimulation of the laryngeal mask to the patients. Of course, the grip 111 of the stretching portion 11 may also take other shapes, such as a flat rectangular parallelepiped, and the corners of the rectangular parallelepiped may be rounded to reduce the irritation to the patient, and the shape is not limited herein.

Referring primarily to fig. 1 and 4, in one embodiment, the end of the catheter 20 remote from the applicator head 10 is fitted with a fitting 30 for connection to irrigation equipment. It should be noted that the connector 30 may be disposed in a cross shape, the middle portion of the connector 30 may be embedded in the airway passage 20A of the catheter 20, the size of the connector may be adapted to the inner diameter of the airway passage 20A, and two ends of the connector 30 correspond to the first gastric passage 20B₁And a second gastric lumen channel 20B₂May be provided with a uniformly shaped through-hole to facilitate connection of the catheter 20 to or insertion of other medical devices.

The joint 30 can be made of medical-grade PC or PMMA and other engineering plastic materials with certain hardness, so that the force required during connection is reduced, and the operation of medical staff is facilitated.

Further, the first gastric lumen channel 20B₁Or the second gastric lumen passage 20B₂Is embedded with a connection tube 40 through the joint 30, the connection tube 40 being used for connection with a suction device. During manufacture, the size of the end of the connecting tube 40 inserted into the catheter 20 and the first gastric cavity passage 20B₁Or the second gastric lumen passage 20B₂The inner diameter of the suction tube is matched with the inner diameter of the suction tube, and the other end of the suction tube is matched with the size of the air receiving tube of the suction device connected with the suction tube.

It should be noted that, in order to facilitate cleaning of various connecting devices and avoid the wrong connection or wrong insertion of the corresponding devices in each channel of the conduit 20, the connecting tube 40 of the present embodiment is of an "L" shape, and the angle of the exposed end thereof can be adjusted by itself and can extend outwards along the side of the conduit 20 to increase the distance between the connecting devices or the inserted devices.

In one embodiment, referring to fig. 1, the wall thickness of the airway cavity 10A on the side near the inner circumference of the conduit 20 is less than the wall thickness of the airway cavity 10A on the side adjacent thereto. Here, the wall thickness of the joint should be as uniform as possible, and the joint is smoothly butted to reduce steps, burrs, and the like. Of course, the wall thickness of the cavity wall may be gradually reduced from the side of the mask head 10 to the inner ring side thereof adjacent to the catheter 20.

It can be understood that the use of a smaller or tapered cavity wall arrangement at the mask tip 10 improves the ability of the mask tip 10 to deform and return to an expanded state, improves the ability of the mask tip 10 to swing, reduces the pressure of the laryngeal mask tip 10 on the airway wall or the laryngeal wall of a patient over time, and reduces irritation to the patient.

The above is only the optional embodiment of the present invention, and not the scope of the present invention is limited thereby, all the equivalent structure changes made by the contents of the specification and the drawings are utilized under the inventive concept of the present invention, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. A three-cavity flushable swing type sealing inflation-free laryngeal mask airway tube is characterized in that the three-cavity flushable swing type sealing inflation-free laryngeal mask airway tube comprises a mask head and a tube communicated with the mask head,

2. The three-cavity flushable oscillating seal inflation-free laryngeal mask airway tube of claim 1, wherein the flexibility of the second sidewall increases from the connection with the first sidewall towards the airway communication port.

3. The three-lumen flushable oscillating seal inflation-free laryngeal mask airway tube of claim 2, wherein the second sidewall has a wall thickness that gradually decreases from the junction with the first sidewall toward the airway communication port such that the second sidewall has a degree of flexibility that gradually increases from the junction with the first sidewall toward the airway communication port.

4. The three-lumen flushable, swinging, sealed, non-inflating laryngeal mask airway tube of claim 1, wherein the flexibility of the first sidewall increases from the junction with the bottom wall towards the second sidewall.

5. The three-lumen flushable oscillating seal inflation-free laryngeal mask airway tube of claim 4, wherein the first side wall tapers in wall thickness from the junction with the bottom wall towards the second side wall such that the flexibility of the first side wall increases progressively from the junction with the bottom wall towards the second side wall.

6. The three-cavity flushable swing seal inflation-free laryngeal mask airway tube of claim 1, wherein the tube is integrally formed with the mask head and is integrally arranged in an arc shape;

the airway cavity is located on the inner ring side of the support arm;

7. The three-cavity flushable, swinging, sealed, non-inflatable laryngeal mask airway tube of claim 6, wherein the tension portion is in the shape of an elongated arc, and wherein the arc of the tension portion is of a size that corresponds to the arc of the tube at the corresponding location.

8. The three-cavity flushable swing seal inflation-free laryngeal mask airway tube of any one of claims 1 to 7, wherein the wall thickness of the lumen wall of the airway cavity on the side near the inner ring of the tube is smaller than the wall thickness of the lumen wall on the side adjacent to the airway cavity.

9. The three-cavity flushable swing seal inflation-free laryngeal mask airway tube according to any one of claims 1 to 7, wherein a joint is embedded in one end of the tube, which is away from the mask head, and a connecting tube is embedded in a second end of the first gastric cavity channel or the second gastric cavity channel through the joint and used for connecting with a suction device.

10. The three-cavity flushable, swinging, sealed, non-inflatable laryngeal mask airway tube of claim 9, wherein the connecting tube is in an L-shaped configuration.