TWM557615U - Anti-reflux nasogastric tube device - Google Patents

Abstract

An anti-reflux nasogastric tube device comprising: a tube body for feeding food into the stomach, an inflation unit, a countercurrent monitoring unit, and a signal processing unit. The inflating unit has an air bag located above the cardia of the stomach and surrounding the tube body, and a gas generator for expanding the air bag to abut against the inner wall of the esophagus, the countercurrent monitoring unit having two mounted on the tube body a light guiding strip, a light emitter, and a light receiver, each light guiding strip having a monitoring end extending into the esophagus, the signal processing unit having a processor having a light and the light A countercurrent monitoring module connected to the emitter and the light receiver. The cooperation of the foregoing structure can monitor and prevent the flow of stomach material through the esophagus.

Description

Anti-reverse nasogastric tube device

The invention relates to a medical device, in particular to a stomach that can be penetrated into the stomach from the nostrils of the human body, so as to facilitate the caregiver to pour food into the stomach of the patient or to guide the anti-reverse flow of the stomach contents. Nasogastric tube device.

In a sick type, like a stroke, it may affect or even lose the function of swallowing. If there is a problem with dysphagia, in order to get enough nutrients for the patient, it is usually necessary to send the liquid food to the stomach through the nasogastric tube. . In the process of ill, like a knife, the patient may not be able to eat normally by chewing and swallowing. The nasogastric tube generally comprises a tube body made of a soft material such as silicone, and an end plug having a feeding channel and a tube wall defining a hollow, the feeding channel having a filling outside the body a food mouth, and a discharge opening extending into the stomach, the end plug closing the feeding opening of the tube body.

Although the nasogastric tube can be used to feed food to the stomach, it is generally necessary to install a nasogastric tube in patients with severe cases. In the case of non-autonomous eating, it is easy to produce excessive feeding, or stomach acid. The problem of reflux, etc., when these stomach substances mixed with stomach acid are not strong due to stomach pressure, or the strength of the cardia sphincter is not strong, and the stomach is countercurrent to the esophagus, it is not only easy to cause inflammation of the esophagus, if the stomach substance passes When the esophagus runs counter to the pharynx, it is likely to be inhaled into the lungs and cause aspiration pneumonia. Because severe cases often fail to express the condition, patients with nasogastric tubes are prone to serious complications such as bacterial infection pneumonia, gastric acid pneumonia, lung abscess, acute respiratory urgency, respiratory failure and the like.

The main reason for the above deficiency is that the nasogastric tube lacks the mechanism to monitor the reflux of the stomach material, and it can not block the occurrence of the countercurrent at the right time. Therefore, if the structure of the nasogastric tube can be improved, it can monitor and prevent the stomach. The countercurrent of substances can not only greatly reduce the diagnostic rate of inhaled foreign bodies, but also greatly reduce the complications of nasogastric tube, and can also improve the quality of caring for patients and reduce the workload of medical staff and caregivers.

It is an object of the present invention to provide a reverse flow nasogastric device that overcomes at least one of the disadvantages of the prior art.

The nasogastric tube device of the present invention enters the stomach through the nostrils of the human body and the esophagus, and the stomach portion has a cardia connecting the esophagus, the nasogastric tube device comprises: a tube body, an inflation unit, and a countercurrent monitoring unit. And a signal processing unit. The tube body has a main body wall defining a feeding passage, the inflatable unit having an air bag that is circumferentially coupled to the tube body and located above the cardia when in use, and an air bag that can be inflated to the a gas generator for abutting the inner wall of the esophagus, the countercurrent monitoring unit having two light guiding strips mounted on the tube body, a light emitter for feeding light into one of the light guiding strips, and a receiving a light receiver for returning light, each light guiding strip having a monitoring end extending into the esophagus during use, the signal processing unit having a processor having a light emitter and the light receiving Monitor processing module connected to the device.

The effect of the novel is that the cooperation of the foregoing structure can reduce the complications of the use of the nasogastric device by monitoring and preventing the reflux of the stomach material of the patient, and at the same time improve the quality of the patient, and thus reduce the medical staff. And the workload of the caregiver.

Referring to Figures 1, 2, and 3, a first embodiment of the novel nasogastric tube device is suitable for being installed on a human body to facilitate the caregiver to feed the patient, and can be processed through a wireless network 61 and a data. The center 62 and/or a mobile carrier 63 signal connection. Specifically, the data processing center 62 can be a general hospital care station, a care institution computer, etc., and the mobile vehicle 63 can be a general mobile phone or a tablet computer. A mobile electronic device, etc., wherein the data processing center 62 can employ a WiFi wireless communication system. The nasogastric tube device comprises: a tube body 1 extending from the nostrils into the stomach, an inflation unit 2 coupled to the tube body 1, a countercurrent monitoring unit 3, a extubation monitoring unit 4, and a The extubation monitoring unit 4 and the signal processing unit 5 connected to the countercurrent monitoring unit 3 are signaled.

Referring to Figures 1, 4 and 5, the tube body 1 is made of a corrosion-resistant and flexible material such as silicone, and has a main wall 11 extending along a length direction 10, the main wall 11 having a defined An inner annulus 111 of a feeding passage 12, and an outer annulus 112 surrounding the outer circumference of the inner annulus 111, the feeding passage 12 having a feeding port 113 protruding beyond the nostrils of the patient, and a feeding port 113 is spaced apart and extends into the discharge opening 114 in the stomach of the patient, and the tube body 1 further has two protruding tube walls 13 integrally protruding from the outer annular surface 112 of the main wall 11, and one can close the The end plug 14 of the feeding port 113. The protruding tube walls 13 extend from the end adjacent to the feeding port 113 along the length direction 10 to the discharge opening 114, and the length of the extending portion is less than the main wall 11, preferably not more than the length of the main wall 11. One-half of each, each of the projectile walls 13 together with a partial region of the outer annulus 112 of the main wall 11 defines an assembly channel 15 extending along the length direction 10.

The form of the inflating unit 2 is not particularly limited, and may be separately fabricated and coupled to the tube body 1. Alternatively, the partial structure may be integrally connected to the tube body 1 to improve the convenience of manufacture. In this embodiment, The inflating unit 2 has an air bag 21 surrounding the tube body 1. The air bag 21 and a partial area of the outer ring surface 112 together define an inflating space 20, and the inflating unit 2 further has a portion connected to the tube body 1 and An inflation tube 23 defining an air passage 22, a gas generator 24 mounted on the inflation tube 23 and manually inflated, and a pressure gauge 25 mounted at the end of the inflation tube 23 and capable of displaying a pressure value. The air passage 22 is in communication with the inflatable space 20, and the air bag 21 is disposed at a lower position than the bottom edge of the protruding tube wall 13.

The countercurrent monitoring unit 3 has a first light guiding strip 31 mounted in one of the assembly channels 15, a light emitter 32 for feeding light into the first light guiding strip 31, and one mounted on the assembly channel 15. a second light guiding strip 33 in the other, and a light receiver 34 for receiving light returned by the second light guiding strip 33, the first light guiding strip 31 having a light incident adjacent to the light emitter 32 a terminal 311, and a first monitoring end 312 spaced apart from the light-incident end 311, the second light guiding strip 33 has a light-emitting end 331 adjacent to the light receiver 34, and a second space spaced apart from the light-emitting end 331 The monitoring end 332 , the first monitoring end 312 and the second monitoring end 332 are all facing the air bag 21 .

The extubation monitoring unit 4 has a fixing patch 41 removably attached to the bridge of the patient's nose, and a light sensing module 42 mounted on the fixing patch 41. The shape of the fixing patch 41 and the human body The nose bridge is matched, and has two monitoring portions 411 respectively corresponding to the nose of the human body, a connecting portion 412 connected between the monitoring portions 411, and a combined with the connecting portion 412 and capable of holding the tube fixedly In the embodiment, the fastening portion 413 is a devil felt that can adjust the fastening position, but is not limited to the foregoing examples. The light sensing module 42 has two light sensors 421 mounted on the monitoring portion 411 of the fixed patch 41 corresponding to the left and right.

Referring to FIGS. 1 and 2, the signal processing unit 5 is connected to the data processing center 62 and/or the mobile carrier 63 via the wireless network 61, and has a processor 51, and the processor 51. A user interface 52 electrically connected to the display unit 53 and a display 53 having a counter current monitoring module 511 electrically connected to the light emitter 32 and the light receiver 34, and a current connection with the counter current monitoring module 511 The backflow alarm 512, a extubation monitoring module 513 electrically connected to the light sensing module 42, and a extubation alarm 514 electrically connected to the extubation monitoring module 513.

The counter current monitoring module 511 can control the light emitter 32 to periodically project light onto the light incident end 311 of the first light guiding strip 31, such as light emitted by the LED or It is a laser light. When the light enters the esophagus from the first light guiding strip 31, it can be transmitted back to the second light guiding strip 33 through refraction, and then received by the light receiver 34, and can be calculated by using the measured refractive index. The speed of light.

That is, when the stomach substance is located in the stomach or in the esophagus, the refractive index of the light received by the light receiver 34 is changed, so that it can be calculated whether the stomach substance has flowed back to the esophagus, when monitored. When the value is abnormal, the backflow alarm 512 will send a warning signal. The tube monitoring module 513 is configured to monitor whether the photo sensors 421 are firmly attached to the bridge of the nose, and when the fixing patch 41 is pulled or peeled off due to being pulled, the photo sensor is caused. When at least one of the 421 detects the light, the extubation alarm 514 generates a warning signal, and the form of the warning signal generated by the reverse flow alarm 512 and the extubation alarm 514 is not particularly limited, and may be sound, Light can also be used together.

Referring to Figures 2, 3 and 6, in the embodiment, the nasogastric tube device is in use, the bottom end of the tube body 1 is entered into the pharynx by the patient's nostrils, and then the pharyngeal portion extends into the stomach through the esophagus, and is installed. The position of the tube body 1 is then fixed by the fixing patch 41. At this time, the air bag 21 is located above the cardia of the stomach, and the first monitoring end 312 and the second monitoring end 332 are slightly higher than the air bag 21, and substantially corresponds to the esophagus of the patient, that is, the first and the first The position of the two monitoring ends 312, 332 is located approximately below the middle of the esophagus to the cardia.

When the nasogastric tube device is in use, the liquid food also enters the stomach from the feeding channel 12, and when the feeding is excessive, or the patient produces reflux of gastric juice, the stomach substance mixed with stomach acid will pass through the cardia. And gradually rise to the esophagus, at this time, the countercurrent monitoring unit 3 will sense the abnormal refractive index, by sensing the refractive index, can calculate the speed of light return and the countercurrent of the stomach material, when When the counterflow condition reaches the police line, the counter current alarm 512 will send an alarm message to notify the caregiver for processing.

At this time, the caregiver can directly enter the inflated space 20 through the air passage 22 by manually manipulating the gas generator 24. When the airbag 21 is inflated and abuts against the inner wall of the esophagus, the stomach can be blocked. The substance flows back through the esophagus. Since the pharynx connects the esophagus and the trachea, when the stomach material cannot reach the pharynx, it can prevent the reflux of the stomach material and cause aspiration pneumonia.

On the other hand, when the fixing patch 41 is detached or split due to the sticking or being pulled, the light sensor 421 senses the light, and at this time, the tube monitoring module 513 also detects The extubation alarm 514 is detected and the warning signal is sent. Whether the backflow monitoring module 511 or the extubation monitoring module 513 senses an abnormality, the processor 51 transmits the signal to the data processing center 62 and/or the action through the transmission of the wireless network 61. With 63, to remind the relevant personnel to carry out the necessary processing.

Referring to Figures 7 and 8, the construction of a second embodiment of the novel nasogastric tube device is similar to that of the first embodiment, except that the gas generator 24 of the first embodiment is a manual type similar to a hand-pressed sphere. Mode, the gas generator 24 of the second embodiment is an electric air blower, and the gas generator 24 is electrically connected to the processor 51. In other words, when the countercurrent monitoring unit 3 detects that the stomach substance of the patient has flowed back through the cardia, the gas generator 24 is automatically activated by the control of the processor 51, and is inflated in time, thereby achieving rapid and automatic Prevent the reverse flow of stomach material.

In summary, the nasogastric tube device of the present invention not only prevents the stomach substance from flowing back to the esophagus in a timely manner, but also causes complications such as esophagitis, aspiration pneumonia, etc., and the structure of the extubation monitoring unit 4 can also be When the tube body 1 is detached, the caregiver is quickly notified to come to the treatment. The above structure can not only greatly reduce the chance of complications caused by the installation of the nasogastric device, but also greatly reduce the workload of the medical staff and the caregiver. Therefore, the present invention is indeed a novel and practical nasogastric device.

However, the above is only the embodiment of the present invention, and when it is not possible to limit the scope of the present invention, all the simple equivalent changes and modifications according to the scope of the patent application and the contents of the patent specification are still This new patent covers the scope.

1‧‧‧ tube body
10‧‧‧ Length direction
11‧‧‧Supervisor wall
111‧‧‧ Inner torus
112‧‧‧ outer annulus
113‧‧‧ feeding port
114‧‧‧Outlet
12‧‧‧feeding channel
13‧‧‧Sudden wall
14‧‧‧End plug
15‧‧‧Assemble channel
2‧‧‧Inflatable unit
20‧‧‧Inflatable space
21‧‧‧Airbag
22‧‧‧ Airway
23‧‧‧Inflatable tube
24‧‧‧ gas generator
25‧‧‧ Pressure gauge
3‧‧‧ Countercurrent monitoring unit
31‧‧‧First light guide
311‧‧‧ into the optical end
312‧‧‧First monitoring end
32‧‧‧Light emitter
33‧‧‧Second light guide
331‧‧‧ light end
332‧‧‧second monitoring end
34‧‧‧Optical Receiver
4‧‧‧tubing monitoring unit
41‧‧‧Fixed patch
411‧‧‧Monitor
412‧‧‧Connecting Department
413‧‧‧Deduction Department
42‧‧‧Light sensing module
421‧‧‧Light sensor
5‧‧‧Signal Processing Unit
51‧‧‧ processor
511‧‧‧ Countercurrent Monitoring Module
512‧‧‧Backflow alarm
513‧‧‧tubation monitoring module
514‧‧‧tubing alarm
52‧‧‧User interface
53‧‧‧ display
61‧‧‧Wireless network
62‧‧‧Data Processing Center
63‧‧‧Mobile Vehicles

Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: Figure 1 is a front exploded view of a first embodiment of the novel nasogastric tube device; 1 is a schematic diagram of a control flow of the first embodiment; FIG. 3 is a reference diagram of a state of use of the first embodiment, illustrating the correspondence between the nasogastric tube device and the human body during use; FIG. 4 is 4-4 along FIG. Figure 1 is a partial cross-sectional view of the first embodiment, an inflated unit of the nasogastric tube device is in a non-inflated position; Figure 6 is a view similar to Figure 5, the inflated unit position In an inflated position; Fig. 7 is a schematic view showing a control flow of a second embodiment of the novel nasogastric tube device; and Fig. 8 is a front exploded view of the second embodiment.

Claims (10)

An anti-reflux nasogastric tube device enters the stomach through the nostrils of the human body and the esophagus, the stomach portion having a cardia connecting the esophagus, comprising: a tube body having a main wall defining a feeding passage; An inflating unit having an air bag that is circumferentially coupled to the tube body and above the cardia when in use, and a gas generator that expands the balloon to the inner wall of the esophagus; a countercurrent monitoring unit having Two light guiding strips mounted on the tube body, a light emitter for feeding light into one of the light guiding strips, and a light receiver for receiving return light, each of the light guiding strips having a monitoring end that extends into the esophagus during use; and a signal processing unit having a processor having a countercurrent monitoring module coupled to the optical transmitter and the optical receiver. The anti-backflow nasogastric device of claim 1, wherein the processor further has a backflow alarm electrically coupled to the countercurrent monitoring module and capable of generating an alert message. The anti-reverse nasogastric device of claim 2, wherein the gas generator is an electric air compressor and is electrically connected to the processor. The anti-reverse nasogastric tube device of claim 1, wherein the main wall of the tube body has an inner annulus defining the feeding passage, and an outer annulus surrounding the inner annulus, the tube The body also has two protruding tube walls protruding from the outer annular surface, each protruding tube wall and a partial area of the outer annular surface jointly defining an assembly passage, and the light guiding strips are respectively installed in the respective assembly Inside the channel. The anti-reverse nasogastric tube device of claim 4, wherein the balloon cooperates with a partial region of the outer annulus of the tube body to define an inflation space, and the inflation unit further has a body with the tube body The outer annulus incorporates an inflation tube defining an air passage connecting the inflatable space and the gas generator. The anti-reverse nasogastric tube device according to any one of claims 1 to 5, further comprising a extubation monitoring unit for detachably mounting the tube body on the human body. The anti-backflow nasogastric tube device of claim 6, wherein the extubation monitoring unit has a fixed patch adhered to the bridge of the nose, and a light sensing mold mounted on the fixed patch and facing the bridge of the nose And the processor of the signal processing unit further has a pull-out monitoring module connected to the light sensing module signal. The anti-backflow nasogastric device of claim 7, wherein the processor further has a extubation alarm electrically connected to the extubation monitoring module. The anti-reverse nasogastric tube device of claim 8, wherein the fixed patch has two spaced monitoring portions, a connecting portion connected between the monitoring portions, and one of the connecting portions disposed on the connecting portion a fastening portion that is fastened to the tube body, and the light sensing module has two light sensors respectively mounted on the monitoring portion. The anti-reverse nasogastric device of claim 6 is connected to a data processing center and/or a mobile vehicle signal via a wireless network, wherein the signal processing unit further has an electrical connection with the processor. A user interface and a display electrically coupled to the processor.