Universal positionable magnetic stomach tube

Abstract

The utility model discloses a universal positionable magnetic stomach tube, which comprises a stomach tube, the stomach tube comprises a stomach tube body, a stomach tube head arranged at one end of the stomach tube body and a sealing joint arranged between the stomach tube body and the stomach tube head, the stomach tube head is arranged at one end of the stomach tube body inserted into the body of a patient, and the sealing joint is arranged at the other end of the stomach tube body inserted into the body of the patient. The two are connected through the sealing joint; the positioning device comprises a handheld magnetic detector and a position tracker, the handheld magnetic detector and the position tracker are both arranged outside the body of a patient, the position tracker comprises a magnetic detector, and the handheld magnetic detector and the magnetic detector are not connected. The stomach tube can be conveniently and smoothly inserted into the esophagus and the stomach of a patient, the stomach tube can still be monitored through the positioner after being placed in the body of the patient, the use difficulty of clinical medical staff is relieved, meanwhile, mistaken detection caused by misoperation is avoided, and the occurrence of mistaken insertion accidents of the stomach tube in clinic can be reduced.

Description

Technical Field

[0001] The embodiments of the utility model belong to the technical field of medical devices, and more specifically, relate to a universal and positionable magnetic stomach tube. Background Art

[0002] A gastric tube is a long, thin tube, usually made of a soft material, such as plastic or rubber. It is usually passed through the mouth and esophagus and is used to introduce food and water into the stomach. In medical situations, a gastric tube can also be used to deliver medications, nutrient solutions, and other substances to the stomach. A gastric tube is often used by doctors during surgery, examinations, or treatments of stomach diseases. Using a gastric tube can help doctors more easily access the stomach to examine or treat diseases. For certain stomach diseases, such as gastric ulcers, acid reflux, and gastric bleeding, a gastric tube can also be used to relieve symptoms or promote recovery. In the process of inserting a catheter into the corresponding part of the human body, it is easy to insert the catheter into other parts and cause damage to the patient, so accurate detection of the position of the gastric tube is crucial.

[0003] The existing technologies for gastric tube position detection methods at home and abroad are mainly divided into two categories: those involving judgment of aspirated liquid and judgment of non-aspirated liquid. The aspirated liquid judgment method has high operational risks and is not the best solution. In the judgment of non-aspirated liquid, the pressure measurement method is a more advanced method. However, the principle description of the existing pressure measurement method is inaccurate, and only simple mechanical devices such as spring pressure gauges are used, with low accuracy and response frequency. The existing detection systems that integrate pressure sensors on special gastric tubes all need to be used with special gastric tubes and cannot be used universally. Implanted pressure sensors increase patient risks and are costly.

[0004] In general, the existing gastric tube position detection systems and methods have problems such as inaccurate principles, simple detection devices, and limited scope of use. Therefore, there is a need for a universal and positionable magnetic gastric tube that can locate the position of the gastric tube head through non-contact detection and is applicable to most existing gastric tube structures. Utility Model Content

[0005] In view of the above defects or improvement needs of the prior art, the utility model provides a universal positionable magnetic gastric tube, the head of the gastric tube is set as a detachable universal tube head, and a special magnet arrangement structure is installed to ensure that any angle of the tube head has strong magnetism, the gastric tube is magnetically detected by a locator, and the position of the head of the gastric tube is monitored in real time. During the insertion of the gastric tube into the human body, the position of the head is detected by a locator to ensure that the insertion operation is carried out along the correct path, so that the gastric tube can smoothly enter the patient's esophagus and stomach, and the gastric tube can still be monitored by the locator after it is placed in the patient's body. It relieves the difficulty of use for clinical medical staff and avoids misdetection caused by operational errors. Compared with various other detection devices currently on the market, it has a higher cost-effectiveness ratio and can reduce the occurrence of clinical gastric tube misinsertion accidents.

[0006] In order to achieve the above-mentioned purpose, the embodiment of the utility model provides a universal positionable magnetic stomach tube, comprising:

[0007] A gastric tube, the gastric tube comprising a gastric tube body, a gastric tube head disposed at one end of the gastric tube body, and a sealing joint disposed between the gastric tube body and the gastric tube head, the gastric tube head being disposed at one end of the gastric tube body inserted into the patient's body, and the two being connected by the sealing joint;

[0008] and a locator, the locator comprising a handheld magnetic detector;

[0009] The stomach tube head comprises an outer magnet and an inner magnet arranged inside the rubber head;

[0010] The outer magnet is divided into multiple segments of outer magnetic blocks along the circumferential direction, and the internal magnetic field direction of each segment of the outer magnetic block is arranged differently, and multiple outer magnetic blocks with different internal magnetic field directions are arranged cyclically, and the magnetic field arrangement directions are: axially inward, circumferentially clockwise, axially outward, and circumferentially counterclockwise;

[0011] The inner magnet is divided into multiple segments of inner magnetic blocks along the circumferential direction. The internal magnetic field direction of each segment of the inner magnetic block is arranged differently, and multiple inner magnetic blocks with different internal magnetic field directions are arranged cyclically. The magnetic field arrangement direction is: radially inward and radially outward.

[0012] Furthermore, the gastric tube head is a gastric tube of different materials, specifications and diameters used clinically;

[0013] The model of the sealing joint matches the specification model of the gastric tube body.

[0014] Further, the stomach tube head includes a rubber head connected to the sealing joint;

[0015] The rubber head is a tubular rubber structure with an annular groove arranged circumferentially inside.

[0016] Furthermore, the outer magnet and the inner magnet are synchronously fixed in the annular groove of the rubber head, the two are tightly attached to each other and are interference fit with the rubber head;

[0017] The outer magnet is fixed to the outer end of the annular groove, and the inner magnet is fixed to the inner end of the annular groove.

[0018] Furthermore, the arrangement direction of the magnetic field of the external magnet is a cycle, and the multiple segments of the external magnetic blocks of the external magnet constitute at least two of the cycles;

[0019] The arrangement direction of the magnetic field of the inner magnet is a cycle, and the multiple segments of the inner magnetic blocks of the inner magnet constitute at least four of the cycles.

[0020] Furthermore, the handheld magnetic detector is provided with a display screen;

[0021] The surface of the handheld magnetic detector is close to the chest cavity of the human body.

[0022] Furthermore, the locator further comprises a position tracker disposed on the top of the locator;

[0023] The position tracker comprises an adjusting device arranged on the top of the locator, a laser head arranged on the adjusting device and a control device.

[0024] Further, the adjustment device includes a positioning frame, and the positioning frame is an "L"-shaped plate;

[0025] and a laser frame arranged on the positioning frame;

[0026] The fixed end of the laser frame is a plurality of adjusting cylinders, and the bottoms of the plurality of adjusting cylinders are fixed to the four corners of the vertical plate of the positioning frame;

[0027] The side of the laser frame is a fixed plate, the four corners of which are hinged to the output end of the regulating cylinder, and the middle of the fixed plate is hollowed out, and a mounting seat is provided in the hollowed out part.

[0028] Further, the laser head is a laser arranged on the laser frame;

[0029] The laser is fixed in a mounting seat of the laser frame fixing plate;

[0030] The laser emitted by the laser forms a light spot on the patient's body, and the light spot corresponds to the position of the gastric tube head in the patient's body.

[0031] Further, the control device is a controller;

[0032] The controller is connected to the handheld magnetic detector, the laser frame and the laser by signals.

[0033] In general, the above technical solutions conceived by the utility model can achieve the following beneficial effects compared with the prior art:

[0034] 1. The utility model is a universal locatable magnetic gastric tube in an embodiment. The device is simple to manufacture, and the detection device has no structural connection with the gastric tube. It is easy to operate, which can relieve the difficulty of use for clinical medical staff and avoid false detection due to operational errors. Compared with various other detection devices currently on the market, it has a higher cost-effectiveness and can reduce the occurrence of gastric tube misinsertion accidents in clinical practice.

[0035] 2. The internal magnetic fields of the magnetic blocks on the outer magnet and the inner magnet of the embodiment of the utility model are specially arranged, so that the gastric tube head can generate a strong magnetic field outward in any direction, ensuring that it can be easily detected by the locator at any angle formed in the patient's body, thereby improving the positioning accuracy of the device.

[0036] 3. The outer magnet and the inner magnet of the embodiment of the utility model are both wrapped with rubber heads to prevent the outer contour of the magnet from coming into contact with the inner membrane of the patient's internal organs and causing damage thereto.

[0037] 4. The embodiment of the utility model uses a low-power laser emitted by a laser to form a light spot on the patient's body at the corresponding position of the gastric tube head, so that the position of the gastric tube head can be visualized. The doctor can use the device to judge the insertion status of the gastric tube according to the position of the light spot so as to make timely adjustments. The doctor can focus on the intubation operation, reduce operational errors caused by distraction, and ensure the personal safety of the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is a schematic diagram of the structure of a universal positionable magnetic stomach tube according to an embodiment of the utility model;

[0039] Figure 2 This is a schematic diagram of the structure of a universal and positionable magnetic stomach tube head of the utility model;

[0040] Figure 3 This is a schematic diagram of the arrangement of the magnetic poles of the outer magnet and the inner magnet of a universal magnetic stomach tube capable of positioning according to an embodiment of the utility model;

[0041] Figure 4 This is a schematic diagram of a universal magnetic gastric tube locator structure according to an embodiment of the utility model;

[0042] Figure 5 This is a schematic structural diagram of a universal position tracker for a magnetic stomach tube that can be positioned according to an embodiment of the utility model.

[0043] In all the drawings, the same reference numerals represent the same technical features, specifically: 1-gastric tube, 11-gastric tube body, 12-gastric tube head, 121-rubber head, 122-external magnet, 123-internal magnet, 13-sealing joint, 2-locator, 21-handheld magnetic detector, 22-position tracker, 221-positioning frame, 222-laser frame, 223-laser, 224-controller. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0045] Example 1

[0046] like Figure 1 As shown, the embodiment of the utility model provides a universal locatable magnetic gastric tube, including a gastric tube 1 and a locator 2. The head of the gastric tube 1 is set as a detachable universal tube head, and a special magnet arrangement structure is installed to ensure that any angle of the tube head has strong magnetism. The locator 2 is used to perform magnetic detection on the gastric tube 1, and the head position of the gastric tube 1 is monitored in real time. During the insertion of the gastric tube 1 into the human body, the locator 2 is used to detect the head position to ensure that the insertion operation is performed along the correct path, so that the gastric tube 1 can smoothly enter the patient's esophagus and stomach, and the locator 2 can still be used to monitor after the gastric tube is placed in the patient's body. The device is simple to make, the detection equipment is not structurally connected to the gastric tube, and the operation is convenient. It can relieve the difficulty of clinical medical staff to use it, and at the same time avoid misdetection caused by operational errors. Compared with various other detection devices currently on the market, it has a higher cost-effectiveness ratio and can reduce the occurrence of clinical gastric tube misinsertion accidents.

[0047] like Figure 2 As shown, the gastric tube 1 comprises a gastric tube body 11, a gastric tube head 12 installed at one end of the gastric tube body 11 inserted into the patient's body, and a sealing joint 13 installed between the gastric tube body 11 and the gastric tube head 12 for connecting the two. The gastric tube body 11 is a gastric tube of different materials, specifications and diameters used in clinical practice, and the gastric tube head 12 comprises a rubber head 121, an external magnet 122 fixed inside the rubber head 121, and an internal magnet 123 fixed inside the rubber head 121. The rubber head 121 is a tubular rubber structure with an annular groove circumferentially arranged inside, and one end is connected to the sealing joint 13.

[0048] like Figure 3As shown, the outer magnet 122 and the inner magnet 123 are both annular magnets, and the two have the same shape and size. They are synchronously fixed in the annular groove of the rubber head 121. The two are tightly attached to each other and have an interference fit with the rubber head 121. The outer magnet 122 is fixed to the outer end of the annular groove, and the inner magnet 123 is fixed to the inner end of the annular groove. The outer magnet 122 is divided into multiple sections of external magnetic blocks along the circumferential direction. The internal magnetic field direction of each section of the external magnetic block is arranged differently, and multiple external magnetic blocks with different internal magnetic field directions are arranged in a cycle. The magnetic field arrangement direction is: axially inward, circumferentially clockwise, axially outward, and circumferentially counterclockwise. This magnetic field arrangement direction is a cycle, and the multiple sections of the external magnetic blocks of the external magnet 122 constitute at least two of the cycles. The inner magnet 123 is divided into multiple segments of inner magnetic blocks along the circumferential direction, and the internal magnetic field direction of each segment of the inner magnetic block is arranged differently, and multiple inner magnetic blocks with different internal magnetic field directions are arranged in a cycle, and the magnetic field arrangement direction is: radially inward and radially outward. This magnetic field arrangement direction is a cycle, and the multiple segments of the inner magnetic blocks of the inner magnet 123 constitute at least four such cycles. The internal magnetic fields of the magnetic blocks on the outer magnet 122 and the inner magnet 123 are arranged as described above, so that the gastric tube head 12 can generate a strong magnetic field outward in any direction, ensuring that it can be detected by the locator 2 at any angle in the patient's body, thereby improving the positioning accuracy of the device. The outer magnet 122 and the inner magnet 123 are both wrapped by the rubber head 121 to prevent the outer contour of the magnet from contacting the inner membrane of the patient's organs and causing damage to them.

[0049] Preferably, the positions of the outer magnet 122 and the inner magnet 123 in the annular groove of the rubber head 121 are interchangeable.

[0050] Preferably, the internal magnetic field of the multiple segments of the external magnetic blocks on the external magnet 122 may also be arranged in the following directions: axially outward, circumferentially clockwise, axially inward, and circumferentially counterclockwise.

[0051] The sealing joint 13 is used to connect one end of the gastric tube body 11 inserted into the patient's body with the gastric tube head 12 , and the model of the sealing joint 13 is determined according to the specification model of the gastric tube body 11 .

[0052] like Figure 4 As shown, the locator 2 includes a handheld magnetic detector 21, which is used to detect the magnetic field strength generated by the gastric tube head 12 and display the magnetic field strength on the display screen of the handheld magnetic detector 21. The magnetic field strength at different positions in the patient's body is measured by moving the position of the handheld magnetic detector 21 to determine the position of the gastric tube head 12 in the patient's body. The handheld magnetic detector 21 has a weak magnetic detection function, a magnetic detection resolution of 50uT, and a real-time display refresh rate of not less than 50Hz.

[0053] The method of using the device is as follows: slowly insert the gastric tube 1 from the nasal cavity, and use the handheld magnetic detector 21 to observe the position of the new magnetic gastric tube in real time. When it is inserted into the throat, ask the patient to swallow to facilitate the gastric tube to smoothly enter the patient's esophagus and stomach. The surface of the handheld magnetic detector 21 is placed close to the human chest cavity, and the position of the gastric tube is adjusted in real time as the gastric tube goes deeper, so as to track the tube opening of the magnetic gastric tube until the gastric tube head 12 enters the predetermined position in the patient's body and is placed.

[0054] like Figure 5 As shown, the positioner 2 also includes a position tracker 22, and the position tracker (22) includes an adjustment device arranged on the top of the positioner (2), a laser head arranged on the adjustment device, and a control device. The adjustment device includes a positioning frame 221 and a laser frame 222 fixed on the positioning frame 221; the laser head is a laser 223 installed on the laser frame 222; and the control device is a controller 224 installed on the positioning frame 221. The positioning frame 221 is an "L"-shaped plate, and the horizontal plate is installed on the top of the handheld magnetic detector 21. The fixed end of the laser frame 222 is a plurality of adjustment cylinders fixed to the four corners of the vertical plate of the positioning frame 221, and the side of the laser frame 222 is a fixed plate, the four corners of which are hinged to the output end of the adjustment cylinder, and the middle of the fixed plate is hollowed out, and a mounting seat is provided in the hollowed-out part. The laser 223 is fixed in the mounting seat of the laser frame 222 fixing plate, and the controller 224 is fixed on the vertical plate of the positioning frame 221, disposed between the multiple adjustment cylinders, and connected to the handheld magnetic detector 21, the laser frame 222 and the laser 223 by signals.

[0055] Preferably, when the handheld magnetic detector 21 detects a magnetic field, the detected magnetic field signal is transmitted to the controller 224, and the controller 224 controls the laser 223 to start emitting a low-power laser, and at the same time, screens out the source direction of the strongest magnetic field intensity according to the received magnetic field signal, and controls the coordinated adjustment of multiple adjustment cylinders of the laser frame 222, so that the normal direction of the fixed plate of the laser frame 222 is consistent with the source direction of the strongest magnetic field intensity, so that the laser 223 is emitted toward the source direction of the strongest magnetic field intensity, and finally forms a light spot on the patient, indicating the position of the gastric tube head 12 in the patient's body.

[0056] Preferably, the handheld magnetic detector 21 monitors the magnetic field in real time and transmits the monitored magnetic field signal to the controller 224. The controller 224 screens each group of magnetic field signals obtained to obtain the direction of the strongest source of real-time magnetic field intensity, and drives the laser frame 222 to drive the laser 223 to adjust the laser emission direction to the direction of the strongest source of magnetic field intensity, so that the light spot projected on the patient moves correspondingly with the position of the gastric tube head 12. The low-power laser emitted by the laser 223 is used to form a light spot on the patient at the corresponding position of the gastric tube head 12, so that the position of the gastric tube head 12 is visualized, and no manual intervention is required throughout the process. The doctor can use the device to judge the insertion status of the gastric tube 1 according to the position of the light spot, so as to make timely adjustments. The doctor can focus on the intubation operation, reduce operational errors caused by distraction, and ensure the personal safety of the patient.

[0057] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A universally locatable magnetic gastric tube, characterized in that: include: A stomach tube (1), the stomach tube (1) comprising a stomach tube body (11), a stomach tube head (12) arranged at one end of the stomach tube body (11), and a sealing joint (13) arranged between the stomach tube body (11) and the stomach tube head (12), the stomach tube head (12) being arranged at one end of the stomach tube body (11) inserted into a patient's body, and the two being connected by the sealing joint (13); and a locator (2), wherein the locator (2) comprises a handheld magnetic detector (21); The stomach tube head (12) comprises an outer magnet (122) and an inner magnet (123) which are arranged inside the rubber head (121); The external magnet (122) is divided into multiple sections of external magnetic blocks along the circumferential direction, and the internal magnetic field direction of each section of the external magnetic block is arranged differently, and multiple external magnetic blocks with different internal magnetic field directions are arranged cyclically, and the magnetic field arrangement direction is: axially inward, circumferentially clockwise, axially outward, and circumferentially counterclockwise; The inner magnet (123) is divided into multiple segments of inner magnetic blocks along the circumferential direction, and the internal magnetic field direction of each segment of the inner magnetic block is arranged differently, and multiple inner magnetic blocks with different internal magnetic field directions are arranged cyclically, and the magnetic field arrangement direction is: radially inward and radially outward.

2. A universally locatable magnetic stomach tube according to claim 1, characterized in that: The gastric tube head (12) is a gastric tube made of different materials, specifications and diameters used in clinical practice; The model of the sealing joint (13) matches the specification and model of the gastric tube body (11).

3. A universally locatable magnetic stomach tube according to claim 1, characterized in that: The stomach tube head (12) comprises a rubber head (121) connected to the sealing joint (13); The rubber head (121) is a tubular rubber structure, and an annular groove is arranged in the circumferential direction inside.

4. A universally locatable magnetic stomach tube according to any one of claims 1 to 3, characterized in that: The outer magnet (122) and the inner magnet (123) are synchronously fixed in the annular groove of the rubber head (121), the two are tightly attached to each other and are interference fit with the rubber head (121); The outer magnet (122) is fixed to the outer end of the annular groove, and the inner magnet (123) is fixed to the inner end of the annular groove.

5. A universally locatable magnetic stomach tube according to claim 4, characterized in that: The magnetic field arrangement direction of the external magnet (122) is a cycle, and the multiple segments of the external magnetic blocks of the external magnet (122) constitute at least two of the cycles; The magnetic field arrangement direction of the inner magnet (123) is a cycle, and the multiple segments of the inner magnetic blocks of the inner magnet (123) constitute at least four of the cycles.

6. A universally locatable magnetic stomach tube according to any one of claims 1-3, characterized in that: The handheld magnetic detector (21) is provided with a display screen; The surface of the handheld magnetic detector (21) is close to the chest cavity of the human body.

7. A universally locatable magnetic stomach tube according to any one of claims 1 to 3, characterized in that: The locator (2) further comprises a position tracker (22) arranged on the top of the locator (2); The position tracker (22) comprises an adjustment device arranged on the top of the positioner (2), a laser head arranged on the adjustment device, and a control device.

8. The universally locatable magnetic stomach tube according to claim 7, characterized in that: The adjusting device comprises a positioning frame (221), and the positioning frame (221) is an "L"-shaped plate; and a laser frame (222) disposed on the positioning frame (221); The fixed end of the laser frame (222) is a plurality of adjusting cylinders, and the bottoms of the plurality of adjusting cylinders are fixed to the four corners of the vertical plate of the positioning frame (221); The side of the laser frame (222) is a fixed plate, the four corners of which are hinged to the output end of the regulating cylinder, and the middle of the fixed plate is hollowed out, and a mounting seat is provided in the hollowed out part.

9. A universally locatable magnetic stomach tube according to claim 8, characterized in that: The laser head is a laser (223) arranged on the laser frame (222); The laser (223) is fixed in a mounting seat of a fixing plate of the laser frame (222); The laser light emitted by the laser (223) forms a light spot on the patient's body, and the light spot corresponds to the position of the gastric tube head (12) in the patient's body.

10. A universally locatable magnetic stomach tube according to claim 9, characterized in that: The control device is a controller (224); The controller (224) is signal-connected to the handheld magnetic detector (21), the laser frame (222) and the laser (223).

Images