CN212730646U

CN212730646U - Nasal catheter

Info

Publication number: CN212730646U
Application number: CN202021627371.XU
Authority: CN
Inventors: 贺焱峰; 陈敬玲
Original assignee: Individual
Current assignee: Yunnan Provincial Hospital of Traditional Chinese Medicine
Priority date: 2020-08-06
Filing date: 2020-08-06
Publication date: 2021-03-19
Anticipated expiration: 2030-08-06

Abstract

The utility model relates to a medical treatment auxiliary devices field especially relates to a nasal catheter, including being used for the connector of being connected with the fluid supply end, be connected with the connector and the inside fluid exchange tube that is equipped with the cavity that can hold the fluid, at least one locates on the fluid exchange tube and is used for deepening the nasal cavity's nasal canal to and locate on the nasal canal outer wall and the seal assembly of steerable shutoff state. The utility model has the advantages of simple structure, the operation is simple and easy, low in production cost is honest and clean more, has increased the convenience of painless gastroscope operation, has reduced medical personnel's work burden, and greatly reduced take place the risk of endangering patient's life safety.

Description

Nasal catheter

Technical Field

The utility model relates to the field of medical auxiliary equipment, especially, relate to a nasal catheter.

Background

Clinically painless gastroscope needs an anaesthetist to inject anaesthetics into a vein of a patient, but the vein anaesthetics have strong sedative and respiratory inhibition effects, the respiratory inhibition can bring hypoxia to the human body, and the hypoxia of the human body is serious and easy to endanger life, so the oxygen inhalation problem of the patient is clinically solved by using a nasal catheter to inhale oxygen, whether the lung function of the patient is normal is confirmed by monitoring the finger vein oxygen condition of the patient, the index of the finger vein oxygen is usually controlled to be 97-100%, and under the condition that the index is lower than the index, the patient needs to be given a mask to inhale oxygen to relieve the hypoxia condition of the patient. And the existing nasal catheter is designed not to influence the spontaneous respiration of the patient and cannot be sealed, so that the ideal state before administration can not be achieved even if the oxygen deficiency of the patient is improved by opening the large oxygen flow, and sometimes even the life of the patient is directly endangered. Meanwhile, when the medicine in a gas-liquid mixture state is required to be sent into the body of a patient through the nose, the existing nasal catheter causes inconvenience in medicine sending due to the fact that the existing nasal catheter cannot be sealed.

Disclosure of Invention

The features and advantages of the present invention are set forth in part in the description which follows, or may be obvious from the description, or may be learned by practice of the invention.

In order to overcome the inconvenient problem of current nasal catheter existence supply fluid, the utility model provides a nasal catheter, including being used for the connector of being connected with the fluid feed end, be connected with the connector and the inside fluid exchange tube that is equipped with the cavity, at least one is located on the fluid exchange tube and is used for going deep into the nasal tube of nasal cavity to and locate on the nasal tube outer wall and can carry out the seal assembly of shutoff to the nasal cavity.

Specifically, seal assembly is including locating the sacculus of nasal canal outer wall, with the first pipe of sacculus intercommunication, can dismantle and locate on the first pipe and through first pipe for the inflated piece of sacculus to and locate on the first pipe and be used for controlling the pneumatic valve that the sacculus inflated and deflated.

Specifically, the fluid exchange tube includes a tube body having a cavity, at least one through hole disposed at one side of the tube body, and a shutoff valve for opening and closing the through hole.

Specifically, the plugging valve comprises a plugging piece which penetrates into the cavity of the pipe body and is used for plugging the through hole, and an adjusting piece which is arranged on one side of the plugging piece, which is far away from the center of the cavity of the pipe body, and is used for adjusting the opening and closing degree of the through hole.

Specifically, the regulating part include with the shutoff piece is connected and is equipped with the regulation cap of external screw thread to and locate on the regulation cap and be convenient for carry out rotatory handheld piece to the regulation cap.

Specifically, an internal thread matched with the external thread of the adjusting cap is arranged at the end part of one side of the pipe body connected with the plugging valve;

and/or;

the tube body is provided with a fixing hole for connecting the nasal tube and/or the connector.

Specifically, the fluid exchange tube further comprises an indicator disposed on the tube body and configured to display a spontaneous breathing condition of the patient.

Specifically, the connector comprises a conversion head and a connector pipe, wherein one end part of the conversion head is communicated with the fluid exchange pipe through a second conduit, and the connector pipe is arranged on the conversion head and is connected with the fluid supply end; and the end part of one side of the conversion head, which is far away from the second conduit, is provided with at least one channel communicated with the second conduit.

Specifically, the connector further comprises a plugging cap which is detachably arranged at the tail end of the joint pipe and plugs the joint pipe.

Specifically, the fluid is gas or a gas-liquid mixture;

and/or;

the nasal tube is arc-shaped.

The utility model has the advantages that: the nasal cavity of the patient is plugged through the sealing assembly, so that the leakage of fluid in the nasal tube is effectively prevented, the patient who cannot breathe spontaneously is relieved from a dangerous anoxic state, and sufficient oxygen can be inhaled; the patient after anesthesia can smoothly breathe by the fluid exchange tube when the patient breathes autonomously; the size of the ventilation volume between the through hole and the external environment is adjusted by adjusting the plugging piece through the adjusting piece, so that the breathing of the patient is assisted, and the problem that the patient suffers from insufficient oxygen inhalation due to overlarge ventilation volume or the patient suffers from unsmooth expiration due to too small ventilation volume is avoided; the breathing state of the patient is prompted to the medical staff through the indicating piece, so that the medical staff can open the blocking valve in time, and the patient can breathe autonomously; can be convenient for through the connector this nasal catheter and the external equipment's such as breathing machine, oxygen jar and atomizer be connected, the medical personnel's of being convenient for operation more, and greatly increased the utility model discloses an application scope. The utility model has the advantages of simple structure, the operation is simple and easy, low in production cost is honest and clean more, has increased the convenience of painless gastroscope operation, has reduced medical personnel's work burden, and greatly reduced take place the risk of endangering patient life safety.

Drawings

The advantages and mode of realisation of the invention will become more apparent hereinafter by describing in detail the invention with reference to the attached drawings, wherein the content shown in the drawings is only for explaining the invention, without constituting any limitation to the meaning of the invention, in which:

FIG. 1 is a schematic view of a nasal cannula according to an embodiment of the present invention;

in the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

the device comprises a connector-100, a second conduit-110, a conversion head-120, a connector pipe-130, a plugging cap-140, a fluid exchange pipe-200, a pipe body-210, a fixing hole-220, a through hole-230, a plugging valve-240, a plugging piece-241, a regulating piece-242, a regulating cap-2421, a hand piece-2422, an indicating piece-250, a nasal tube-300, a sealing component-400, a balloon-410, a first conduit-420, an inflating piece-430 and an air valve-440.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

As shown in fig. 1, the present invention provides a nasal catheter, which comprises a connector 100 for connecting with a fluid supply end, a fluid exchange tube 200 connected with the connector 100 and having a cavity inside, at least one nasal tube 300 disposed on the fluid exchange tube 200 and used for penetrating into the nasal cavity, and a sealing assembly 400 disposed on the outer wall of the nasal tube 300 and capable of sealing off the nasal cavity. The nasal cavity of the patient is sealed by the sealing assembly 400, so that the leakage of fluid in the nasal tube 300 is effectively prevented, when the fluid is oxygen, the problem that the oxygen absorption amount of the patient is insufficient due to the fact that the patient cannot breathe independently can be solved, the finger pulse oxygen index is maintained at a normal level, and the patient is separated from a dangerous anoxic state; make the patient after the anesthesia exhale smoothly when carrying out spontaneous respiration through fluid exchange tube 200, simultaneously in the unable spontaneous respiration stage of patient, can guarantee the sufficient oxygen uptake of patient, when the patient takes place the little tongue and hangs and hinder the breathing, the accessible increases the mode of gaseous air output and blows up the little tongue to ensure patient's life safety.

Further, the sealing assembly 400 includes a balloon 410 disposed on an outer wall of the nasal tube 300, a first conduit 420 communicated with the balloon 410, an inflation member 430 detachably disposed on the first conduit 420 and inflating the balloon 410 through the first conduit 420, and an air valve 440 disposed on the first conduit 420 and controlling inflation and deflation of the balloon 410. The balloon 410 is not in communication with the nasal cannula 300. The end of the first catheter 420 away from the balloon 410 is provided with a port for connection to an inflation member 430. The balloon 410 is inflated through the inflating piece 430 to achieve the purpose of blocking the nasal cavity of a patient, the influence of leakage of fluid on the medical effect is effectively prevented, particularly, the patient cannot breathe independently after deep anesthesia, the nasal cavity of the patient is blocked through the balloon 410, the fluid can enter the patient in a pressurizing mode, the medical effect is effectively guaranteed, the medical risk of the patient is greatly reduced, and medical staff can be concentrated in medical operation and physical examination of the patient. The air leakage of the balloon 410 is effectively prevented through the air valve 440, so that the operation of medical personnel is more convenient.

Further, the inflating unit 430 may be a balloon or a syringe, that is, the balloon 410 may be inflated, and is not limited in this respect. Because the balloon 410 is small, the syringe barrel can complete inflation of the balloon 410.

Further, the first conduit 420 may be connected to the inflatable member 430 after being fixed along the outer wall of the fluid exchange tube 200, or may be connected to the inflatable member 430 after passing through the fluid exchange tube 200 through the fixing hole 220, which is not specifically limited herein, so as to facilitate the operation of the medical care personnel, avoid the interference of various links during the operation process, and prevent the nasal catheter from being pulled easily, thereby preventing the nasal catheter from falling off.

Further, the fluid exchange tube 200 comprises a tube body 210 provided with a cavity, at least one through hole 230 provided at one side of the tube body 210, and a blocking valve 240 for opening and closing the through hole 230. When the fluid is oxygen, the patient can breathe freely through the tube 210 with the cavity when the patient can breathe freely; and when the patient can not breathe by oneself, guarantee that the gas in the nasal catheter does not leak, and then increase the patient and to the absorption of oxygen, make the condition of patient's oxygen deficiency can not appear, do not influence other treatments of patient. The shape of the through hole 230 may be circular, rectangular, elliptical, irregular, or regular, and is not limited in this respect. The fluid exchange tube 200 is preferably made of a transparent material to facilitate adjustment of the position of the occlusion valve 240 by the medical practitioner.

As a preferred embodiment of the present invention, the through holes 230 are three air holes horizontally formed on the tube 210. In the actual oxygen inhalation operation, when the patient breathes slightly, the blocking valve 240 is adjusted to open half of the first vent hole, so that the external air can enter the fluid exchange tube 200, and the patient can exhale conveniently; when the spontaneous respiration of the patient is strengthened, gradually adjusting the blocking valve 240 until the first vent hole is completely opened; gradually adjusting the blocking valve 240 to the second vent hole to be opened as the spontaneous respiration of the patient becomes stronger; when the spontaneous respiration of the patient returns to normal, the blocking valve 240 is adjusted to the third vent hole to be opened. Through the mode of gradually opening through-hole 230 according to patient's spontaneous breathing condition like this, effectual patient's oxygen uptake effect of having guaranteed makes the patient be in the state of not oxygen deficiency constantly, has guaranteed patient's life safety.

Further, the blocking valve 240 includes a blocking member 241 extending into the cavity of the tube 210 for blocking the through hole 230, and an adjusting member 242 disposed on a side of the blocking member 241 away from the center of the cavity of the tube 210 for adjusting the opening/closing degree of the through hole 230. The cavity of the tube body 210 is kept sealed by the blocking piece 241, preventing the fluid pressure in the fluid exchange tube 200 from being reduced due to air leakage, and preventing the required pressure from being reached, thereby affecting the treatment effect. The size of the opening of the through-hole 230 is adjusted by the adjusting member 242 to facilitate ventilation when the patient is breathing spontaneously; when the breath of the patient is weak, the through hole 230 is opened through the adjusting piece 242, and the opening of the through hole 230 is small to adapt to the weak breath of the patient, and simultaneously, the patient is ensured to have sufficient oxygen supply and to be effectively absorbed; as the patient's spontaneous breathing gradually resumes, the opening of the through-holes 230 is increased, allowing sufficient air to enter the lumen of the tube 210 to maintain ventilation of the patient. Through the regulation of shutoff valve 240, solved the oxygen supply problem of the different autonomic respiration degree of patient, both guaranteed that the patient can inhale the oxygen of sufficient, patient's breathing is not influenced simultaneously.

Further, the adjusting part 242 includes an adjusting cap 2421 connected to the blocking part 241 and provided with an external thread, and a hand-held part 2422 provided on the adjusting cap 2421 and facilitating the rotation of the adjusting cap 2421. The through hole 230 can be adjusted by medical staff conveniently through the handheld part 2422, and the handheld part is easy to operate and not easy to fall off. The hand-held part 2422 may be a protrusion disposed on the adjusting cap 2421 for easy grasping, or may be a T-shaped rod disposed on the adjusting cap 2421 for easy grasping by the medical staff, which is not limited specifically herein. Through the adjusting cap 2421 with the thread, the adjustment of the opening degree of the through hole 230 is more uniform and stable, and the situation that the pressure in the fluid exchange tube 200 changes to affect the oxygen inhalation of a patient due to the fact that the opening is too large or too small due to the force applied by medical staff is avoided.

Further, an internal thread matched with the external thread of the adjusting cap 2421 is arranged at one side end part of the pipe body 210 connected with the blocking valve 240. Further fixation of the plugging valve 240 and the pipe body 210 is achieved through the external threads of the adjusting cap 2421 and the internal threads of the pipe body 210, meanwhile, the pipe body 210 is further sealed, the plugging valve 240 is effectively prevented from falling off, and the adjusting operation of the plugging valve 240 is facilitated.

Further, the tube body 210 is provided with a fixing hole 220 for connecting the nasal tube 300 and/or the connector 100. The nasal tube 300 and/or the connector 100 may be integrally fixed to the fixing hole 220, or may be detachably fixed to the fixing hole 220, so that the connection between the nasal tube 300, the connector 100 and the tube body 210 may be achieved, which is not specifically limited herein. The nasal cannula 300 and/or the connector 100 are/is detachably fixed on the cannula body 210, so that the fluid exchange tube 200 and the catheter can be sterilized after use, the fluid exchange tube 200 can be repeatedly used, the medical cost is reduced, and the device is more environment-friendly; meanwhile, the detachable treatment of the nasal tube 300 is more convenient for the oxygen inhalation operation of the patient under the condition that a single nasal cavity is injured or the single nasal cavity can not be intubated.

Further, a sealing cover (not shown) for sealing the fixing hole 220 is provided on the fixing hole 220. For a patient needing only one nasal oxygen inhalation, the unused fixing hole 220 can be blocked by a blocking cover (not shown in the figure), so that the waste of medical resources caused by the overflow of fluid from the fixing hole 220 and the increase of the treatment cost of the patient are avoided, and the problem that the treatment requirement of the patient cannot be met due to insufficient fluid pressure caused by unsealing is further avoided, particularly for the patient who cannot breathe due to the hanging of the tongue, the finger pulse oxygen index of the patient is reduced and even the life is threatened due to the fact that the tongue cannot be blown up.

Further optimizing the above technical solution, the fluid exchange tube 200 further comprises an indicator 250 disposed on the tube body 210 and used for displaying the spontaneous breathing condition of the patient. Through indicator 250, medical personnel can find the opportunity for the patient to breathe independently in time and open adjusting part 242 on fluid exchange tube 200 in time, so as to avoid the patient from breathing unsmoothly and influencing the patient's spontaneous breathing.

As a preferred embodiment of the present invention, the indicator 250 is an air bag disposed on the tube 210 and communicated with the cavity of the tube 210. When the patient inhales by breathing autonomously, this causes the air pressure in the fluid exchange tube 200 and the bladder to drop, which in turn causes the bladder to compress or deflate, and when the physician sees the bladder contracting or deflating, the adjustment member 242 on the fluid exchange tube 200 is opened to allow air to enter the fluid exchange tube 200 to ensure proper exhalation by the patient.

As another preferred embodiment of the present invention, the indicator 250 includes an air pressure sensor disposed on the tube 210, and an indicator light for indicating the breathing state. The preferred model number for the barometric sensor is MS5611-01 BA. When the pressure value of the air pressure sensor becomes small, the adjustment member 242 on the fluid exchange tube 200 is opened to allow air to enter the fluid exchange tube 200 to ensure the normal exhalation of the patient.

Further, the connection head 100 includes a conversion head 120 having one side end communicating with the fluid exchange tube 200 through a second conduit 110, and a connection head 130 provided on the conversion head 120 and connected to the fluid supply end; the end of the switching head 120 away from the second conduit 1100 is provided with at least one channel that communicates with the second conduit 110. Realize being connected with dismantling of connector 100 through change-over head 120 to the connector 130 of different interfaces is changed in order to make the utility model discloses an application scope is wider, and the medical personnel's of being convenient for operation more. The end of the joint pipe 130 is provided with a joint adapted to the output port of the fluid supply end to facilitate the connection and fixation of the two. Design through connector 100 makes the utility model discloses can be connected with different equipment, make the utility model discloses an application scope is wider, need not to be equipped with other accessories again and can connect, and makes things convenient for medical personnel's operation more, has practiced thrift medical personnel's operating time, provides more rescue time for medical personnel's the patient under the emergency.

Further, the connector 100 further includes a plugging cap 140 detachably disposed at the end of the adapter tube 130 and plugging the adapter tube 130. The adapter tube 130, which is not required to be connected, is blocked by the blocking cap 140 to prevent air leakage and bacteria from entering the nasal catheter, so as to maintain the inside of the unused nasal catheter in a sterile state. As a preferred embodiment of the present invention, the end of the connector tube 130 is further provided with an indication sticker, so that the medical staff can quickly find the connector of the corresponding device.

Further, the fluid is a gas or a gas-liquid mixture. This fluid can be oxygen, also can be through the gas-liquid mixture after the atomizer atomizing, make the utility model discloses not only can be used for the oxygen uptake operation to the patient, more can be used for treating the medical treatment operation of anesthesia to the patient through the medicine after the atomizing, greatly reduced the patient misery when carrying out the atomizing operation, especially to less infant's atomizing operation of dosing, need not the patient and initiatively open the mouth and breathe in and can dose, simultaneously because the sealed effect of this nasal catheter is better, greatly reduced the waste of medicine, and the operation is simple and easy, the effect of dosing is better, greatly reduced patient's discomfort.

Further, the nose tube 300 has an arc shape. The arc-shaped nasal tube 300 is more convenient to extend into the nasal cavity, so that the nasal tube 300 is more attached to the nasal cavity of a patient, the discomfort of the patient is reduced, the fluid is more convenient to be fed into the body of the patient, and the fluid is not easy to fall off.

When the nasal cannula is actually used, the connector 130 is selected according to the shape of the interface of the fluid supply end, the fluid supply end is connected with the connector 130, the number of nasal cannulas 300 which need to be inserted into the nasal cavity is judged according to the condition of a patient, then the nasal cannulas 300 are inserted into the nasal cavity of the patient, the balloon 410 is inflated through the inflating piece 430 to seal the nasal cavity of the patient, the fluid supply end is opened, when the fluid is oxygen to supply oxygen to the patient, the blocking valve 240 is adjusted according to the spontaneous respiration condition of the patient, when the patient can breathe spontaneously, the medical staff opens the blocking valve 240 according to the display condition of the indicating piece 250, when the patient cannot breathe spontaneously, the oxygen flow is increased, the medical staff closes the blocking valve 240, and the through hole 230 cannot be communicated with the outside; when the tongue hangs and hinders the patient and breathe, through the oxygen flow of adjusting the fluid feed end, the sealed effect through this nasal catheter makes fluidic pressure boost effect obvious, and then makes patient's tongue blown, especially obese patient's tongue, only needs medical personnel's simple operation can solve the problem of patient's oxygen deficiency, greatly reduced medical personnel's the operation degree of difficulty and can solve the problem of patient's oxygen deficiency fast. When the fluid is a gas-liquid mixture and is administered to the laryngeal cavity or the nasal cavity of a patient, the atomized gas-liquid mixture can enter the nasal cavity of the patient along the nasal catheter to be administered after the nasal catheter is connected with the atomizer. The utility model has the advantages of simple structure, the operation is simple and easy, low in production cost is honest and clean, and application scope is wider and more convenient and practical, has increased the convenience of painless gastroscope operation, has reduced medical personnel's work burden, and greatly reduced take place the risk of endangering patient's life safety, make patient's finger pulse oxygen index maintain in normal standard range.

The preferred embodiments of the present invention have been described with reference to the accompanying drawings, and those skilled in the art can implement the present invention in various modifications without departing from the scope and spirit of the present invention. For instance, features illustrated or described as part of one embodiment, can be used with another embodiment to yield a still further embodiment. The above description is only a preferred and practical embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the specification and the drawings of the present invention are included in the scope of the present invention.

Claims

1. A nasal catheter is characterized by comprising a connector, a fluid exchange tube, at least one nasal tube and a sealing assembly, wherein the connector is used for being connected with a fluid supply end, the fluid exchange tube is connected with the connector and is internally provided with a cavity, the nasal tube is arranged on the fluid exchange tube and is used for penetrating into a nasal cavity, and the sealing assembly is arranged on the outer wall of the nasal tube and can be used for sealing the nasal cavity; the fluid exchange tube includes a tube body having a cavity, at least one through hole disposed on one side of the tube body, and a shutoff valve for opening and closing the through hole.

2. The nasal catheter of claim 1, wherein the sealing assembly comprises a balloon disposed on an outer wall of the nasal tube, a first catheter connected to the balloon, an inflation member detachably disposed on the first catheter and configured to inflate the balloon through the first catheter, and an air valve disposed on the first catheter and configured to control inflation and deflation of the balloon.

3. The nasal catheter according to claim 2, wherein the blocking valve comprises a blocking member extending into the cavity of the tube and blocking the through hole, and an adjusting member provided on a side of the blocking member away from the center of the cavity of the tube and adjusting the degree of opening and closing of the through hole.

4. The nasal catheter of claim 3, wherein the adjustment member comprises an adjustment cap coupled to the occluding member and having external threads, and a handle member disposed on the adjustment cap for facilitating rotation of the adjustment cap.

5. The nasal catheter according to claim 4, wherein the end of the tube body connected to the blocking valve is provided with an internal thread adapted to the external thread of the adjusting cap;

and/or;

6. The nasal cannula according to any one of claims 1-5, wherein the fluid exchange tube further comprises an indicator disposed on the body for displaying spontaneous breathing of the patient.

7. The nasal catheter of claim 6, wherein the connector comprises a switching head having a side end portion communicating with the fluid exchange tube through the second conduit, and a connector tube provided on the switching head and connected to the fluid supply end; and the end part of one side of the conversion head, which is far away from the second conduit, is provided with at least one channel communicated with the second conduit.

8. The nasal catheter of claim 7, wherein the connector further comprises a sealing cap removably attached to the distal end of the connector tube for sealing the connector tube.

9. A nasal catheter according to claim 8, wherein the fluid is a gas or a mixture of gas and liquid;

and/or;

the nasal tube is arc-shaped.