Adjustable oropharynx and nasopharynx ventilation catheter

Abstract

The utility model discloses an adjustable oropharynx and nasopharynx ventilation catheter, and relates to the technical field of medical instruments. In order to solve the problem that a suction inlet is easily blocked by sputum suction in the prior art, the utility model designs an adjustable oropharynx and nasopharynx ventilation catheter which is mainly structurally characterized by comprising a catheter body and a joint, the connector is provided with an inspiration channel and an expiration channel, connected to the tail end of the catheter body and used for oxygen inhalation, expiration and sputum suction. The connector capable of completing oxygen inhalation, expiration and sputum suction at the same time is connected to the tail end of the catheter body, operation space is saved for other medical instruments needing to be placed at the oropharynx and the nasopharynx, sputum suction and fixation are facilitated, and it is avoided that sputum blocks an inlet in the front end of the catheter to affect ventilation; the device is simple in structure and convenient to operate, and can be widely popularized and used.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, specifically, relate to a adjustable oropharyngeal, nasopharyngeal ventilation catheter. BACKGROUND

[0002] Painless and comfortable diagnosis and treatment has become a trend, especially outpatient painless gastrointestinal endoscopy has been popularized, various different types of patients such as obesity, old age combined with multiple diseases need painless diagnosis and treatment, which increases the risk of anesthesia. At present, non-cannula intravenous anesthesia mostly uses nasal catheter oxygen inhalation, especially outpatient painless diagnosis and treatment patients basically use intravenous anesthesia, if obese, old age combined with complications, tongue falling backward, sleep apnea syndrome or respiratory obstruction, etc. Ventilation difficult patients, nasal oxygen inhalation will be insufficient ventilation, and blood oxygen saturation continues to decline, even respiratory depression, and the safety of vital signs is affected. On the other hand, the requirement of anesthetic quality control, all outpatient intravenous anesthesia patients need to have end-tidal carbon dioxide partial pressure monitoring, and at present, the equipment for monitoring end-tidal carbon dioxide partial pressure in non-cannula intravenous anesthesia is less and the accuracy is low.

[0003] At present, the catheter in and out of the clinic has only one port, that is, the inhalation end and the exhalation end share one port, and it is not convenient to suck sputum and fix, and sputum is easy to block the front end of the catheter and affect ventilation.

[0004] The existing patent mostly leads out a soft tube from the side wall of the catheter as the oxygen inhalation end, and the tail end of the catheter is used as the exhalation end and for sputum suction. In this way, sputum is easy to block the soft tube port for oxygen inhalation during the suction process, and it is not easy to clean.

[0005] The patent with publication number CN215875851U discloses an oropharyngeal and nasopharyngeal ventilation catheter, which comprises a soft catheter body and a carbon dioxide sampling pipe. The catheter body comprises a breathing access section, a support section and an insertion section connected in sequence. The breathing access section is provided with an inhalation port, an exhalation port and a sampling pipe inlet. The support section is provided with a support spring. The insertion section has a beveled opening at the tail end. The carbon dioxide sampling pipe penetrates through the support section and the collection port is located in the insertion section. The carbon dioxide sampling pipe is located between the catheter body and the support spring. The ventilation catheter has a soft material outside, which will not damage the nasal mucosa when the catheter is placed. At the same time, when the catheter is placed in the oral cavity, the support spring can prevent the catheter body from deforming and forming a narrow passage. By locating the carbon dioxide sampling pipe between the catheter body and the support spring, the influence of the respiratory airflow of the human body on the carbon dioxide sampling pipe is avoided, and problems such as displacement of the carbon dioxide sampling pipe and inaccurate measurement are solved.

[0006] In the sputum suction process of the utility model, the inhalation port is easy to be blocked. UTILITY MODEL CONTENTS

[0007] To solve the above problems, the technical idea adopted by the utility model to solve its technical problems is:

[0008] The utility model discloses a joint which can complete oxygen inhalation, exhalation and sputum suction simultaneously, and is connected to the end of a catheter, thereby saving operation space for other medical devices to be placed in the oropharynx and nasopharynx, facilitating sputum suction and fixation, and avoiding sputum blockage of the suction port.

[0009] The specific scheme is as follows:

[0010] An adjustable oropharyngeal and nasopharyngeal ventilation catheter comprises a catheter body and a joint having an inhalation channel and an exhalation channel.

[0011] Further, the joint is in the shape of .

[0012] To achieve the above scheme, the preferred scheme is that the joint comprises a fixed section, an inhalation section and an exhalation section; the fixed section is internally divided along the length direction of the catheter body, one side is the exhalation section, and the other side extends to the outside of the fixed section, which is the inhalation section; the fixed section is used for connecting the end of the catheter body, the inhalation section is used for connecting an oxygen supply device, and the exhalation section is used for discharging gas.

[0013] Optionally, the inhalation section internally forms the inhalation channel with the lumen of the catheter body, and is used for inhaling oxygen.

[0014] Optionally, the exhalation section internally forms the exhalation channel with the lumen of the catheter body, and is used for exhalation and sputum suction.

[0015] Preferably, the inhalation section is invaginated in the fixed section, and the lower end opening of the inhalation section is 3-8mm away from the lower end opening of the fixed section.

[0016] By adopting the above technical scheme, the utility model has the following technical effects:

[0017] An adjustable oropharyngeal and nasopharyngeal ventilation catheter comprises a catheter body and a joint; the joint has an inhalation channel and an exhalation channel, and is connected to the end of the catheter body, and is used for inhaling oxygen, exhaling and sucking sputum.

[0018] The catheter body is inserted into the oral cavity or the nasal cavity to place the ventilation catheter to a position near the supraglottic to inhale oxygen, solves the problem of insufficient ventilation caused by airway problems, reduces respiratory depression, maintains the pulse blood oxygen saturation in a normal range, increases the safety of non-intubated intravenous anesthesia, and allows more patients in the clinic to enjoy painless and comfortable gastroscopy and family planning diagnosis and treatment. The joint which can complete the oxygen inhalation, exhalation and sputum suction operation is connected to the end of the catheter body, saves the operation space for other medical devices which need to be placed in the oropharynx and nasopharynx, facilitates sputum suction and fixation, and avoids that sputum blocks the entrance of the front end of the catheter to affect ventilation.

[0019] The adjustable oropharyngeal and nasopharyngeal ventilation catheter has simple structure and convenient operation, and can be widely used. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the embodiments will be briefly introduced as follows.

[0021] Figure 1 is a structural schematic diagram of an adjustable oropharyngeal and nasopharyngeal ventilation catheter provided by the embodiments of the present application;

[0022] Figure 2 is a structural schematic diagram of a catheter body provided by the embodiments of the present application;

[0023] Figure 3 is a partial enlarged view of Figure 2 ;

[0024] Figure 4 is a structural schematic diagram of a joint provided by the embodiments of the present application;

[0025] Figure 5 is a perspective view of the joint provided by the embodiments of the present application;

[0026] Figure 6 is a top view of the joint provided by the embodiments of the present application;

[0027] Figure 7 is a use schematic diagram of an adjustable oropharyngeal and nasopharyngeal ventilation catheter provided by the embodiments of the present application;

[0028] Figure 8 is a real object diagram of an adjustable oropharyngeal and nasopharyngeal ventilation catheter;

[0029] Figure legend: catheter body 1; insertion section 11; support section 12; visible cable 13; end-tidal carbon dioxide sampling tube 14; joint 2; fixed section 21; inhalation section 22; exhalation section 23. DETAILED DESCRIPTION

[0030] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the following will combine the accompanying drawings to further describe the embodiments of the present application in detail. Figures 1-7 To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the following will combine the accompanying drawings to further describe the embodiments of the present application in detail.

[0031] It should be noted that similar reference numerals and letters refer to like items in the accompanying drawings, and thus, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.

[0032] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "vertical", "horizontal", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present application is usually placed, and are merely for the convenience of describing the present application and simplifying the description, and thus cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus cannot be understood as limiting the present application.

[0033] In the description of the present application, it should be noted that the terms "set", "mount", "connected", "connected" should be understood broadly, unless otherwise explicitly specified and limited.

[0034] Embodiments

[0035] The inventor has found that the current clinical catheter access has only one port, i.e., the suction end and the exhalation end share one port, and it is inconvenient to suck sputum and fix, and sputum is easy to block the front end of the catheter and affect ventilation. The existing patents mostly lead out a hose from the side wall of the catheter as an oxygen suction end, and the end of the catheter is used as an exhalation end and for sputum suction. In this way, sputum is easy to block the hose port for oxygen inhalation during the suction process, and it is not easy to clean. Therefore, the present application provides an adjustable oropharyngeal and nasopharyngeal ventilation catheter which can avoid sputum blocking the suction port.

[0036] In the embodiments of the present application, please refer to Figure 1 , Figure 1 is a structural schematic diagram of an adjustable oropharyngeal and nasopharyngeal ventilation catheter provided by the present application. The adjustable oropharyngeal and nasopharyngeal ventilation catheter comprises a catheter body 1 and a joint 2 with an inhalation channel and an exhalation channel; the joint 2 is connected to the end of the catheter body 1, and is used for oxygen inhalation, exhalation and sputum suction.

[0037] The catheter body 1 is inserted into the oral cavity or the nasal cavity to place the ventilation catheter to the position near the supraglottic to inhale oxygen, solve the problem of insufficient ventilation caused by airway, reduce respiratory depression, maintain the pulse blood oxygen saturation in the normal range, increase the safety of non-intubated intravenous anesthesia, and make more patients in the clinic enjoy painless and comfortable treatment of gastroscopy and family planning diagnosis and treatment. The joint 2 can complete the operations of inhaling oxygen, exhaling and inhaling sputum, is connected to the end of the catheter body 1, saves the operation space for other medical devices to be placed in the oropharynx and nasopharynx, facilitates sputum suction and fixation, and avoids that sputum blocks the entrance of the front end of the catheter to affect ventilation.

[0038] In the embodiments of the present application, please refer to Figure 2 and Figure 3 , Figure 2 is a structural schematic diagram of the catheter body provided by the embodiments of the present application; Figure 3 is a partial enlarged view of Figure 2 . The catheter body 1 is transparent and hollow, the length of the catheter is 31 cm, and the inner diameter has three specifications of 6 cm, 6.5 cm and 7.0 cm. The catheter body 1 is integrally formed and includes an insertion section 11 and a support section 12 connected in sequence from bottom to top.

[0039] Among them, the insertion section 11 is made of soft silica gel material, which is soft and does not damage the oral mucosa; the side of the insertion section 11 away from the support section 12 is an inclined opening, which facilitates reducing the resistance during intubation; a plurality of through holes are arranged around the side wall of the insertion section 11, which are longitudinally arranged to prevent sputum from blocking the ventilation; the present application does not limit the shape of the through hole, and the person skilled in the art can adjust it according to the actual situation, preferably an oval shape.

[0040] The 3-25 cm of the support section 12 is made of spring soft silica gel material, which has the functions of supporting and resisting pressure, is not easy to break and block the ventilation, and is easy to shape and fix; the 25-31 cm is made of soft silica gel material, which is soft and convenient for operation and fixation.

[0041] It should be noted that the catheter body 1 is also provided with a visible cable 13 and an end-tidal carbon dioxide sampling tube 14; the visible cable 13 and the end-tidal carbon dioxide sampling tube 14 are respectively embedded in the wall of the catheter body 1 along the direction of the catheter body 1, and the two are integrally formed with the catheter body 1; both of them start from the inclined opening of the insertion section 11, along the wall of the catheter body 1, to the 22 cm of the support section 12, and are drawn out from the inside of the wall and extended to the outside of the catheter body 1. The visible cable 13 is used to connect the display screen, which facilitates the doctor to quickly complete the insertion of the oropharyngeal and nasopharyngeal ventilation catheter under the guidance of the visible image, and can find the oral secretion and handle it in time; the end-tidal carbon dioxide sampling tube 14 is used to connect the monitor, which can meet the requirements of monitoring the end-tidal carbon dioxide partial pressure of non-intubated intravenous anesthesia for anesthesia quality control.

[0042] The conduit body 1 and the visible cable line 13 and the end-tidal carbon dioxide sampling tube 14 arranged in the conduit body 1 are common prior art, and a person skilled in the art can realize them, and thus, no further description is given herein.

[0043] In the embodiments of the present application, refer to Figure 4 , Figure 5 , Figure 6 and Figure 7 , Figure 4 is a structure diagram of the connector provided by the embodiments of the present application; Figure 5 is a perspective view of the connector provided by the embodiments of the present application; Figure 6 is a top view of the connector provided by the embodiments of the present application; Figure 7 is a use diagram of an adjustable oropharyngeal and nasopharyngeal ventilation conduit provided by the embodiments of the present application. The connector 2 is in the form of . The connector 2 can be welded or bonded with the end of the conduit body 1, in a non-detachable manner; or can be sleeved with the end of the conduit body 1, in a detachable manner.

[0044] The connector 2 is integrally formed and includes a fixed section 21, an inhalation section 22 and an exhalation section 23. The fixed section is used to connect with the end of the conduit body, and the inside of the fixed section is divided into two parts along the length direction of the conduit body, one part is the exhalation section, and the other part extends to the outside of the fixed section, as the inhalation section. The inhalation section is used to connect with an oxygen supply device, and the inside of the inhalation section forms an inhalation channel with the lumen of the conduit body, for inhaling oxygen. The exhalation section is used to discharge gas, and the inside of the exhalation section forms an exhalation channel with the lumen of the conduit body, for exhaling and inhaling sputum.

[0045] In the above technical solution, the fixed section 21 is in the form of a hollow thick cylinder, the outer diameter of the fixed section 21 matches the inner diameter of the conduit body 1, the fixed section 21 is inserted into the inside of the end of the conduit body 1, and the inner wall of the fixed section 21 is attached to the inner wall of the conduit body 1;

[0046] The inhalation section 22 is composed of two thin hollow tubes which are perpendicular to each other and are in communication with each other, and the inhalation section 22 is in the form of an integral . The diameter of the hollow tube is not greater than one half of the diameter of the fixed section 21. The vertical hollow tube is vertically arranged in the inside of the fixed section 21, and the outer wall of the vertical hollow tube is welded with the inner wall of one side of the fixed section 21. The inner bent part of the inhalation section 22 is welded with the end of the fixed section 21 which is away from the conduit body. The horizontal hollow tube extends to the outside of the fixed section 21 and is perpendicular to the fixed section 21. The horizontal hollow tube is used to connect with the oxygen supply device. The oxygen supply device is common prior art, and can be an oxygen inhalation tube or the like. The present application does not limit the oxygen supply device, and a person skilled in the art can realize it, and thus, no further description is given herein.

[0047] Preferably, the inhalation section is recessed in the fixed section, and the lower end opening of the inhalation section is 3-8 mm away from the lower end opening of the fixed section, i.e. the lower end opening of the vertical hollow tube is 3-8 mm away from the lower end opening of the fixed section.

[0048] The fixed section 21 is internally distal to the vertical hollow tube on one side of the inhalation section 22 as an exhalation section 23, and the exhalation section 23 is distal to the catheter body on one side as a circular opening, which is communicated with the outside, facilitating the exhalation and sputum suction tube insertion. When a small amount of oral secretion is found, the sputum can be directly sucked through the exhalation section 23; if it is a large amount of oral secretion, the connector 2 can be removed for sputum suction.

[0049] Operation process: when the oral cavity is cannulated, the catheter body 1 is held by hand and rotated into the insertion section 11 from the right corner of the mouth to a suitable depth, and the oxygen pipe is connected to the inhalation section 22, and then fixed after video correction; if the gastrointestinal mirror patient is encountered, the catheter is cannulated from the side hole of the gastroscope bite, which does not affect the operation of the gastroscope doctor. When the nasal cavity is cannulated, the insertion section 11 is coated with a lubricant, the catheter body 1 is held by hand and rotated into the insertion section 11 from one side of the nostril to a suitable depth, and the oxygen pipe is connected to the inhalation section 22, and then fixed after video correction.

[0050] Application case

[0051] The adjustable oropharyngeal and nasopharyngeal ventilation catheter is applied to the clinical examples of outpatient painless gastrointestinal mirror, painless family planning, and inpatient surgery of intravertebral anesthesia combined with intravenous anesthesia, etc. When the patient is examined and treated or operated, the ECG monitoring and open vein are performed first, the catheter body 1 is connected to the display screen and the monitor in advance, and after the intravenous anesthetic sedative is given, the catheter body 1 is inserted into the oral cavity, and then the oxygen pipe is connected to the inhalation section 22. The catheter body 1 is generally inserted to a depth of about 10-16 cm, and can be fixed after the position is corrected under the video. At this time, the pulse blood oxygen saturation on the monitor can be continuously maintained at 98-100% or significantly improved compared with before anesthesia, and the end-tidal carbon dioxide partial pressure value and waveform are displayed on the monitor. At the same time, it is observed under the video whether there is sputum secretion in the throat. The exhalation section 23 can be used to timely suction and clean the secretion, so that the catheter body 1 is kept unobstructed and the excellent ventilation environment is maintained. After the patient is examined and treated or operated, the sputum is sucked under the video, the secretion is completely sucked, the patient is continuously observed until the patient naturally awakens, and the adjustable oropharyngeal and nasopharyngeal ventilation catheter is removed. The whole anesthesia process is carried out in a visual environment, timely observation and treatment are carried out, the patient safety index is improved, there is no respiratory depression, no pulse blood oxygen saturation decrease, no sputum causing coughing, and no injury.

[0052] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An adjustable oropharyngeal and nasopharyngeal ventilation catheter, comprising a catheter body (1), characterized in that, a connector (2) with an inhalation channel and an exhalation channel is further connected to the end of the catheter body (1) for oxygen inhalation, exhalation and sputum suction; The joint (2) is of the "T" type " type; the connector (2) comprises a fixed section (21), an inhalation section (22) and an exhalation section (23); the fixed section (21) is divided along the length direction of the catheter body (1) inside, one side is the exhalation section (23), and the other side extends to the outside of the fixed section (21), which is the inhalation section (22); the fixed section (21) is used to connect with the end of the catheter body (1), the inhalation section (22) is used to connect with the oxygen supply device, and the exhalation section (23) is used to exhaust gas; a visible cable (13) is further arranged on the catheter body (1), the visible cable (13) is embedded in the pipe wall inside the catheter body (1) along the direction of the catheter body (1), and is integrally formed with the catheter body (1).

2. The adjustable oropharyngeal and nasopharyngeal ventilation catheter according to claim 1, characterized in that, the inside of the inhalation section (22) and the lumen of the catheter body (1) form the inhalation channel for oxygen inhalation.

3. The adjustable oropharyngeal and nasopharyngeal ventilation catheter according to claim 2, characterized in that, the inside of the exhalation section (23) and the lumen of the catheter body (1) form the exhalation channel for exhalation and sputum suction.

4. An adjustable oropharyngeal, nasopharyngeal airway as defined in claim 2, wherein, the inhalation section (22) is recessed in the fixed section (21), and the lower end opening of the inhalation section (22) is 3-8mm away from the lower end opening of the fixed section (21).

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