CN215875851U

CN215875851U - Oropharynx and nasopharynx ventilation catheter

Info

Publication number: CN215875851U
Application number: CN202120981120.XU
Authority: CN
Inventors: 陈大俊; 李永庆; 徐美英
Original assignee: SHANGHAI PUTUO DISTRICT LIQUN HOSPITAL
Current assignee: SHANGHAI PUTUO DISTRICT LIQUN HOSPITAL
Priority date: 2021-05-10
Filing date: 2021-05-10
Publication date: 2022-02-22
Anticipated expiration: 2031-05-10

Abstract

The utility model discloses an oropharynx and nasopharynx air duct, which comprises a soft duct body and a carbon dioxide sampling tube, wherein the duct body comprises a breathing access section, a supporting section and an inserting section which are sequentially connected, the breathing access section is provided with a suction inlet, a call outlet and a sampling tube inlet, a supporting spring is arranged in the supporting section, the tail end of the inserting section is provided with an inclined plane opening, the carbon dioxide sampling tube penetrates through the supporting section, the acquisition port is positioned in the inserting section, and the carbon dioxide sampling tube is positioned between the duct body and the supporting spring. The outer part of the ventilation catheter is made of softer materials, so that the nasal mucosa cannot be damaged when the catheter is placed in the oral cavity, and meanwhile, the deformation of the catheter body and the formation of a narrow passage are avoided under the action of the supporting spring when the catheter is placed in the oral cavity; through the form that makes carbon dioxide sampling pipe be located between pipe body and the supporting spring, avoid human breathing air current through the pipe of ventilating to cause the influence to carbon dioxide sampling pipe, make carbon dioxide sampling pipe aversion, cause the inaccurate scheduling problem of measurement.

Description

Oropharynx and nasopharynx ventilation catheter

Technical Field

The utility model relates to the technical field of medical instruments, in particular to an oropharynx and nasopharynx ventilating duct.

Background

The existing intravenous anesthesia mainly adopts a nasal catheter to inhale oxygen, a small number of patients can inhale oxygen through a mask, if patients with obesity, respiratory tract obstruction or the elderly patients with difficult ventilation are suffered from insufficient ventilation through the nasal inhalation or the mask, the blood oxygen saturation is continuously reduced, and the safety of vital signs is influenced.

In order to solve the problems, a tube is arranged in the oral cavity or the nasal cavity, and the tube is arranged at a position 1-2cm close to the glottis, so that the problems of respiratory obstruction or difficult ventilation and the like are solved.

But present oropharynx air vent and nasopharynx air vent equally divide and do not design to the characteristics of oral cavity and nasal cavity, can not be general, if for avoiding making the air duct unsmooth because the oral area interlock when putting into from the oral cavity, usually oropharynx air vent can adopt harder material, and nasopharynx air vent then for avoiding haring the nasal mucosa, need adopt softer material, and oropharynx air vent and nasopharynx air vent also do not detect the effect of breathing last carbon dioxide partial pressure, and detect the change of the internal carbon dioxide output of judgement that breathes that last carbon dioxide partial pressure can be timely accurate, thereby avoid the emergence of serious oxygen deficiency harm.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an oropharynx and nasopharynx air duct, which solves the problems in the prior art, can be simultaneously suitable for oral cavity and nasal cavity intubation, and can be used for preventing the nasal cavity mucosa from being damaged when intubation is performed by arranging a soft duct body and arranging a support spring in a support section of the duct body; still set up the carbon dioxide sampling pipe simultaneously and carry out real-time detection and breathe last carbon dioxide partial pressure to make the form that the carbon dioxide sampling pipe is located between pipe body and the supporting spring, avoid human breathing air current through the pipe of ventilating to cause the influence to the carbon dioxide sampling pipe, make the carbon dioxide sampling pipe shift, cause the inaccurate scheduling problem of measurement.

In order to achieve the purpose, the utility model provides the following scheme: the utility model provides an oropharynx and nasopharynx air duct, which comprises a soft duct body and a carbon dioxide sampling tube, wherein the duct body comprises a breathing access section, a supporting section and an inserting section which are sequentially connected, the breathing access section is provided with a suction inlet, a call outlet and a sampling tube inlet, a supporting spring is arranged in the supporting section, the tail end of the inserting section is provided with an inclined plane opening, the carbon dioxide sampling tube is accessed into the duct body through the sampling tube inlet and penetrates through the supporting section, the collecting port of the carbon dioxide sampling tube is positioned in the inserting section, and the carbon dioxide sampling tube is positioned between the duct body and the supporting spring.

Preferably, the end of the respiratory access section is connected with a three-way valve, and two unconnected interfaces of the three-way valve are the suction inlet and the exhalation outlet respectively.

Preferably, the insertion section is provided with at least three vent holes along the circumferential direction of the catheter body near the bevel opening.

Preferably, the vent holes are disposed at opposite sides of the bevel opening and at both left and right sides of the bevel opening.

Preferably, the catheter body is 330mm long, the inner diameter is 6mm, the insertion section is 30mm long, and the support section is 250mm long.

Preferably, the collection port of the carbon dioxide sampling tube is 20mm from the end of the insertion section.

Preferably, the catheter body is provided with a scale for determining the implantation depth.

Preferably, the material of pipe body is silica gel.

Compared with the prior art, the utility model has the following technical effects:

1. the soft catheter body is arranged, and the supporting spring is arranged in the supporting section of the catheter body, so that the outer part of the ventilation catheter is made of soft materials, nasal mucosa cannot be damaged when the catheter is placed, and meanwhile, the problem of unsmooth breathing caused by deformation of the catheter body and formation of a narrow passage can be avoided under the action of the supporting spring when the catheter is placed in the oral cavity; still set up the carbon dioxide sampling pipe simultaneously and carry out real-time detection and breathe last carbon dioxide partial pressure to make the form that the carbon dioxide sampling pipe is located between pipe body and the supporting spring, avoid human breathing air current through the pipe of ventilating to cause the influence to the carbon dioxide sampling pipe, make the carbon dioxide sampling pipe shift, cause the inaccurate scheduling problem of measurement.

2. The end part of the respiration access section is connected with the three-way valve, so that two unconnected interfaces of the three-way valve are respectively in the forms of a suction inlet and a call outlet, when the patient breathes autonomously, both the suction inlet and the call outlet of the three-way valve are opened, and the suction inlet can be connected with an oxygen cylinder; when the machine controlled respiration is performed, the exhalation port can be closed, the ventilation volume is increased, and the safety of anesthesia is improved; through setting up the three-way valve, make the opening and closing of exhaling the mouth more convenient, the controllability is stronger.

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 embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.

FIG. 1 is a schematic view of the overall structure of an oropharyngeal and nasopharyngeal airway tube;

FIG. 2 is a cross-sectional view of an oropharyngeal and nasopharyngeal airway tube;

wherein, 1, the catheter body; 2. a carbon dioxide sampling tube; 3. a breath access segment; 4. a support section; 5. an insertion section; 6. a suction inlet; 7. a call-out port; 8. an inlet of a sampling pipe; 9. a support spring; 10. the inclined plane is opened; 11. a vent hole; 12. and (4) calibration.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

As shown in fig. 1-2, the present embodiment provides an oropharyngeal airway and nasopharynx, which includes a soft airway body 1 and a carbon dioxide sampling tube 2, wherein the airway body 1 is made of soft material such as medical grade silica gel, rubber, and the like, preferably silica gel, the carbon dioxide sampling tube 2 can be made of the same material as or different from the airway body 1, and can also be made of relatively hard plastic, the airway body 1 includes a respiration access section 3, a support section 4, and an insertion section 5, which are sequentially connected, the respiration access section 3 is provided with a suction inlet 6, a exhalation outlet 7, and a sampling tube inlet 8, the suction inlet 6 and the exhalation outlet 7 can be respectively an inlet of the catheter body 1 and a branch pipe orifice arranged on the catheter body 1, or a three-way valve can be arranged at the end part of the respiration access section 3 of the catheter body 1, and two interfaces on the three-way valve can be respectively used as the suction inlet 6 and the exhalation outlet 7; the supporting section 4 is internally provided with a supporting spring 9, the supporting spring 9 has certain deformation resistance in the circumferential direction and can be bent along the axial direction, so that the catheter body 1 can be bent to a certain degree and radian when being placed with a catheter, the tail end of the insertion section 5 is provided with an inclined plane opening 10, the inclined plane opening 10 is arranged, so that the resistance when being placed with the catheter is small, most sputum can be adhered to the tip of the inclined plane when encountering the sputum, and the inclined plane opening 10 is not easy to block; the carbon dioxide sampling tube 2 is connected into the catheter body 1 through the sampling tube inlet 8 and penetrates through the supporting section 4, the acquisition opening of the carbon dioxide sampling tube 2 is positioned in the insertion section 5, the carbon dioxide sampling tube 2 is positioned between the catheter body 1 and the supporting spring 9, in order to prevent the carbon dioxide sampling tube 2 from being extruded by the supporting spring 9, the carbon dioxide sampling tube 2 can be made of hard material which is not easy to deform in the circumferential direction, and because the carbon dioxide sampling tube 2 is positioned in the catheter body 1, the oral cavity, the nasal cavity and the like can not be damaged, a groove for fixing the carbon dioxide sampling tube 2 can be arranged on the inner wall of the catheter body 1, by arranging the carbon dioxide sampling tube 2 in the groove, on one hand, the carbon dioxide sampling tube 2 can be fixed, and on the other hand, the supporting spring 9 can be prevented from applying larger acting force to the carbon dioxide sampling tube 2; the embodiment is simultaneously suitable for oral cavity and nasal cavity intubation, the end part of the airway extends to the throat part close to the glottis, and the airway is aerated and inhaled, so that ineffective ventilation volume is reduced, the soft catheter body 1 is arranged, and the supporting spring 9 is arranged in the supporting section 4 of the catheter body 1, so that the exterior of the airway is made of soft materials, nasal cavity mucosa can not be damaged when intubation is carried out, and meanwhile, the problem of unsmooth respiration caused by deformation of the catheter body 1 and formation of a narrow passage can be avoided through the action of the supporting spring 9 when intubation is carried out in the oral cavity; still set up carbon dioxide sampling pipe 2 simultaneously and carry out real-time detection and breathe last carbon dioxide partial pressure to make carbon dioxide sampling pipe 2 be located the form between pipe body 1 and the supporting spring 9, avoid human breathing air current through the pipe of ventilating to cause the influence to carbon dioxide sampling pipe 2, make carbon dioxide sampling pipe 2 shift, cause the inaccurate scheduling problem of measurement.

As a preferred embodiment, the end of the respiration connection section 3 is connected with a three-way valve, two unconnected interfaces of the three-way valve are a suction inlet 6 and an exhalation outlet 7 respectively, when the patient breathes autonomously, the suction inlet 6 and the exhalation outlet 7 of the three-way valve are both opened, and the suction inlet 6 can be connected with an oxygen cylinder; when the machine is used for controlling respiration, the exhalation port 7 can be closed, so that the ventilation quantity is increased, and the safety of anesthesia is improved; by arranging the three-way valve, the opening and closing of the exhalation port 7 are more convenient and the controllability is stronger.

Further, insert section 5 and be close to inclined plane opening 10 department and seted up three air vent 11 along 1 circumference of pipe body at least, through setting up a plurality of air vents 11, pipe body 1 tip is when oral secretion is too much, even if there is an air vent 11 to block up, can also guarantee the air permeability through other air vents 11 to guarantee the unobstructed nature of breathing.

Further, the air vent 11 sets up in inclined plane opening 10 opposite side and inclined plane opening 10 left and right sides, and through the aforesaid setting, insert 5 terminal homoenergetic on four directions of section and ventilate to guarantee when a direction secretion is more, the air volume of direction can not receive the influence in addition, thereby further guarantees the unobstructed nature of breathing.

As a preferred embodiment, the catheter body 1 is 330mm long, 6mm in inner diameter, 5 mm long and 30mm long in the insertion section and 4 mm long and 250mm long in the support section, when the catheter is placed, the depth of the catheter body 1 placed through the oral cavity is about 120mm and 150mm for adult men and 100mm-120mm for adult women, and when the catheter is placed through the nasal cavity, the placement depth is 30mm more than that of the oral cavity.

Further, 360mm are long for 2 carbon dioxide sampling pipes, internal diameter 1mm, and the collection mouth of 2 carbon dioxide sampling pipes is apart from inserting 5 terminal 20mm of section, and through the collection mouth setting with 2 carbon dioxide sampling pipes inserting 5 inside, avoid 2 carbon dioxide sampling pipes to receive the influence of secretion, and also can be fine in this department carry out effective monitoring to breathing terminal carbon dioxide partial pressure.

Further, be provided with the scale 12 that is used for confirming the degree of depth of putting into on the pipe body 1, through scale 12, the doctor can more audio-visual judgement degree of depth of putting into to guarantee to put quick, the efficient completion of pipe work.

When the oropharyngeal and nasopharyngeal airway tube is used, the tube body 1 is placed from the right side mouth of a patient through the oral cavity tube placing and the right hand, and is placed into a preset depth, the suction inlet 6 of the three-way valve is connected with an oxygen tube, the exhalation outlet 7 is opened, the carbon dioxide sampling tube 2 is connected with a monitor to detect the carbon dioxide at the end of respiration, and the tube body 1 is fixed by an adhesive tape; through nasal cavity catheterization, the right hand-held catheter body 1 is rotationally implanted inwards and downwards from the right nasal cavity of a patient and is implanted to a preset depth, an inhalation port 6 of a three-way valve is connected with an oxygen tube, an exhalation port 7 is opened, a carbon dioxide sampling tube 2 is connected with a monitor to detect the carbon dioxide at the end of respiration, and the catheter body 1 is fixed by an adhesive tape; after oxygen is supplied through the oropharynx and nasopharynx ventilation catheter, the normal blood oxygen saturation can be maintained, and the operation operations such as bronchoscopy and endoscope are not affected.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. An oropharynx and nasopharynx ventilation catheter is characterized in that: including soft pipe body and carbon dioxide sampling pipe, the pipe body is including breathing the access section, supporting section and the section of inserting that connects gradually, it is provided with the sunction inlet on the access section to breathe, calls for export and sampling pipe entry, be provided with supporting spring in the support section, it has the inclined plane opening to insert the section tip, carbon dioxide sampling pipe passes through the sampling pipe entry is inserted inside the pipe body, and runs through the support section, the collection mouth of carbon dioxide sampling pipe is located insert in the section, carbon dioxide sampling pipe is located the pipe body with between the supporting spring.

2. An oropharyngeal and nasopharyngeal airway tube according to claim 1, wherein: the end part of the breath access section is connected with a three-way valve, and two unconnected interfaces of the three-way valve are respectively the suction inlet and the exhalation outlet.

3. An oropharyngeal, nasopharyngeal airway tube according to claim 1 or 2 wherein: the inserting section is close to the inclined plane opening and at least three vent holes are formed in the circumferential direction of the catheter body.

4. An oropharyngeal and nasopharyngeal airway tube according to claim 3, wherein: the vent holes are arranged on the opposite sides of the inclined plane opening and the left side and the right side of the inclined plane opening.

5. An oropharyngeal and nasopharyngeal airway tube according to claim 4 wherein: the catheter body is 330mm long, the inner diameter is 6mm, the insertion section is 30mm long, and the support section is 250mm long.

6. An oropharyngeal and nasopharyngeal airway tube according to claim 5, wherein: the acquisition opening of the carbon dioxide sampling tube is 20mm away from the tail end of the insertion section.

7. An oropharyngeal and nasopharyngeal airway tube according to claim 6, wherein: the catheter body is provided with scales for determining the implantation depth.

8. An oropharyngeal and nasopharyngeal airway tube according to claim 1, wherein: the catheter body is made of silica gel.