Respiratory gating device for assisting puncture and control method thereof

Abstract

The invention belongs to the technical field of puncture, and particularly discloses a respiratory gating device for assisting puncture and a control method thereof.The respiratory gating device comprises a mechanical airbag unit and a control measurement unit; the control method comprises the steps that the processor receives a user instruction of the console to control the air pump to inflate and deflate the arched elastic inflatable air bag through the electromagnetic valve, the breathing state of a user is detected through the pressure sensor, and meanwhile waveform display is provided through the waveform displayer. The mechanical air bag unit and the control measurement unit are arranged, and the mechanical air bag unit is effectively integrated on a sickbed, so that waveform display is provided, meanwhile, the device can be placed in the working visual field of a doctor, and meanwhile, the needle inserting time is prompted in an acousto-optic mode; in addition, a gating signal provided by the device can also be used as a triggering signal of CT exposure, so that the breathing state corresponding to puncture and the breathing state corresponding to an image are completely consistent.

Description

Technical Field

[0001] The present invention relates to the technical field of puncture, and in particular to a respiratory gating device for assisting puncture and a control method thereof. Background Art

[0002] Taking chest puncture as an example, CT images generally require patients to hold their breath to obtain. Therefore, if the needle can be inserted in time when the corresponding breathing conditions are met during the puncture, it will be very beneficial to improve the success rate and accuracy of the puncture and shorten the puncture process. There are many devices on the market for detecting breathing and achieving gating, but there are the following shortcomings: the device generally requires the patient to wear an abdominal belt, which increases the patient's discomfort; the device generally only provides a respiratory waveform display and is usually not in the same field of view as the puncture site, which is not conducive to grasping the timing of needle insertion; the device generally does not have a needle insertion prompt function. Summary of the invention

[0003] The purpose of the present invention is to solve the technical problems existing in the background technology. To this end, a respiratory gating device for assisting puncture and a control method thereof are provided.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0005] A respiratory gating device for assisting puncture, comprising a mechanical airbag unit and a control and measurement unit;

[0006] The mechanical airbag unit comprises a guide rail sliding assembly, an arched bracket, an arched elastic inflatable airbag and an airway, wherein the arched bracket is slidably mounted on the bed through the guide rail sliding assembly, the arched elastic inflatable airbag is mounted on the lower side of the arched bracket, and the airway is fixedly mounted on the arched bracket and communicated with the arched elastic inflatable airbag;

[0007] The arched elastic inflatable airbag is connected to the air pump in the control and measurement unit through an air channel.

[0008] The following is a technical solution further defined in the device of the present invention, wherein the control and measurement unit comprises a processor, a control console, an air pump, a solenoid valve, a pressure sensor and a waveform display, and the control console, the air pump, the solenoid valve, the pressure sensor and the waveform display are all electrically connected to the processor;

[0009] The processor receives the user's instruction from the console to control the air pump to inflate and deflate the elastic inflatable airbag with arch belt through the electromagnetic valve, and detects the user's breathing state through the pressure sensor, and provides waveform display through the waveform display.

[0010] The following is a technical solution further defined by the device of the present invention, wherein the control and measurement unit further includes a puncture needle insertion indicator, and the user sets a threshold range according to needs. When the respiratory state signal reaches the threshold, the puncture needle insertion indicator provides an audible and visual indication signal.

[0011] The following is a technical solution further defined by the device of the present invention, wherein the puncture needle reminder starts the sound and light reminder after reaching the set starting threshold value, and stops the sound and light reminder when reaching the set ending threshold value.

[0012] The following is a technical solution further defined by the device in the present invention, wherein the control and measurement unit provides a gate signal output, which is used as a CT exposure trigger signal.

[0013] The following is a technical solution further defined by the device of the present invention, in which a bed board is slidably installed on the hospital bed.

[0014] A control method based on the above-mentioned respiratory gating device comprises the following steps:

[0015] Step S1: In the initial state, the user operates on the console to control the guide rail sliding assembly to operate so that the respiratory gating device is at the rear of the bed, making it convenient for the patient to get on and off the bed;

[0016] Step S2: When the patient is positioned, the user operates on the console to control the guide rail sliding assembly to operate so that the respiratory gating device is located above the patient's puncture site;

[0017] Step S3: The user operates on the console, and the processor receives the user's instruction on the console to control the air pump to inflate the arched elastic inflatable airbag through the solenoid valve, perform respiratory measurement monitoring, and detect the user's respiratory state through the pressure sensor, and provide waveform display through the waveform display;

[0018] Step S4: After the puncture needle reminder starts the sound and light reminder, the doctor performs the puncture operation at the puncture site under the sound and light reminder;

[0019] Step S5: When the patient needs to be moved for examination, the user operates on the console, and the processor receives the user's instruction on the console to control the air pump to deflate the arched elastic inflatable airbag through the solenoid valve, move the bed board of the bed, and examine the patient;

[0020] Step S6: After the inspection is completed, the bed board moves to the original position and steps S3-S4 are repeated;

[0021] Step S7: After the puncture is completed, the user operates on the console, and the processor receives the user's instructions from the console to control the air pump to deflate the arched elastic inflatable airbag through the solenoid valve, and controls the operation of the guide rail sliding assembly so that the respiratory gating device is at the tail end of the bed.

[0022] The following is a technical solution further defined by the control method in the present invention. When the respiratory gating device is located above the patient's puncture site, the airbag target pressure value is set and the airbag inflation operation is started. After that, the respiratory status signal is collected and a waveform graph is provided. The user sets the corresponding threshold value for the sound and light prompt of the puncture on the waveform graph, and monitors whether the respiratory status is within the threshold range. When the respiratory status is within the threshold range, the sound and light prompt puncture is started and an enable gating signal is issued.

[0023] The following is a technical solution further limited by the control method in the present invention. When the patient needs to undergo puncture confirmation and examination, the monitoring of the breathing status is suspended and the airbag is exhausted. When the patient completes the examination, the user does not need to set the airbag target pressure value.

[0024] Compared with the prior art, the present invention has the following technical effects:

[0025] The present invention provides a mechanical airbag unit and a control and measurement unit, and effectively integrates the mechanical airbag unit into the hospital bed, which not only provides waveform display, but also can be placed within the doctor's working field and use sound and light to prompt the timing of needle insertion; in addition, the gating signal provided by the device can also be used as a trigger signal for CT exposure, so that the respiratory state corresponding to the puncture and the image is completely consistent.

[0026] The present invention is further described below in conjunction with the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 is a simplified structural diagram of the mechanical airbag unit of the present invention, wherein the left side is a simplified structural diagram of the front view, and the right side is a simplified structural diagram of the side view;

[0029] Figure 2 It is a simplified diagram of the state structure of the mechanical airbag unit in the present invention under different breathing states;

[0030] Figure 3 It is a simplified structural diagram of the mechanical airbag unit in the present invention that moves horizontally;

[0031] Figure 4 It is a module connection block diagram of the control and measurement unit in the present invention;

[0032] Figure 51 is a breathing state detection curve diagram of the present invention, wherein the shaded portion is the threshold range of the puncture needle reminder for sound and light reminder;

[0033] Figure 6 It is a simplified structural diagram of the mechanical airbag unit in the present invention moving horizontally to position 1, position 2, and position 3;

[0034] Figure 7 It is a flow chart of the method of the present invention.

[0035] Figure numerals: 1. arch bracket; 2. arch with elastic inflatable airbag; 3. airway; 4. guide rail sliding assembly; 5. bed board. DETAILED DESCRIPTION

[0036] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0037] like Figure 1-7 As shown, this embodiment provides a respiratory gating device for assisting puncture and a control method thereof.

[0038] The invention discloses a respiratory gating device for assisting puncture, which is composed of a mechanical airbag unit and a control and measurement unit.

[0039] like Figure 1 As shown, the mechanical airbag unit includes a guide rail sliding assembly 4, an arch support 1, an arch belt elastic inflatable airbag 2 and an airway 3. The arch support 1 is slidably installed on the hospital bed through the guide rail sliding assembly 4 (composed of a horizontal guide rail slide and a slider), the arch belt elastic inflatable airbag 2 is installed on the lower side of the arch support 1, and the airway 3 is fixedly installed on the arch support 1 and communicated with the arch belt elastic inflatable airbag 2. The arch belt elastic inflatable airbag 2 is connected to the air pump in the control and measurement unit through the airway 3 and a hose. The arch support 1 can be moved horizontally on the hospital bed through the guide rail sliding assembly 4. The airbag is inflated by the air pump through the airway 3 according to the set pressure value so that the patient's measurement part (such as the chest) is in contact. Since the airbag (the airbag is set as an arch belt) covers the entire arch support 1 and covers a wide area, the breathing state can still be well detected even if the patient lies on his side.

[0040] like Figure 2The figure shows the changes of the filled airbag under different breathing conditions: when the patient inhales, the chest expands and squeezes the airbag, and the pressure inside the airbag increases; when the patient exhales, the chest contracts and the airbag expands, and the pressure inside the airbag decreases. The breathing state can be obtained by measuring the pressure inside the airbag.

[0041] like Figure 3 As shown, the entire respiratory gating device can be moved horizontally along the guide rail to select the measurement and monitoring site.

[0042] like Figure 4 As shown, the control and measurement unit is composed of a processor, a control console, an air pump, a solenoid valve, a pressure sensor, a waveform display, and a puncture needle reminder.

[0043] The processor receives the user's instructions from the console to control the air pump to inflate and deflate the arched elastic inflatable airbag 2 through the solenoid valve, and detects the user's breathing state through the pressure sensor, and provides a waveform display through the waveform display. The user can set the threshold range as needed, and when the breathing state signal reaches the threshold, the puncture needle reminder can provide an audible and visual indication signal. At the same time, the measurement control unit provides a gated signal output, which can be used as a CT exposure trigger signal.

[0044] The puncture needle reminder can start the sound and light reminder after reaching the set starting threshold, and stop the sound and light reminder when reaching the set ending threshold. Figure 5 As shown in the figure, when the breathing state is detected to meet the shaded area, the sound and light reminder is activated to prompt that the needle can be inserted. In other areas, the sound and light reminder function is not activated. Since the reminder only needs simple sound and light reminders, the reminder can be made very small and can be placed in the same field of view as the needle insertion so that the needle insertion direction can be observed at the same time.

[0045] A method for controlling a respiratory gating device comprises the following steps:

[0046] Step S1: In the initial state, the user operates on the console to control the guide rail sliding assembly 4 to operate so that the respiratory gating device is at the rear of the bed (position 1). Figure 6 As shown, it is convenient for patients to get on and off the bed.

[0047] Step S2: When the patient is positioned, the user operates the console to control the guide rail sliding assembly 4 to operate so that the respiratory gating device is located above the patient's puncture site (position 2). Figure 6 shown.

[0048] Step S3: The user operates on the console, and the processor receives the user's instructions from the console to control the air pump to inflate the arched elastic inflatable airbag 2 through the solenoid valve, perform respiratory measurement monitoring, and detect the user's breathing status through the pressure sensor, and provide waveform display through the waveform display.

[0049] Step S4: After the puncture needle reminder starts the sound and light reminder, the doctor performs the puncture operation on the puncture site under the sound and light reminder.

[0050] Step S5: When the patient needs to be examined and moved, the user operates on the console, and the processor receives the user's instruction on the console to control the air pump to deflate the arched elastic inflatable airbag 2 through the solenoid valve, and move the position of the bed board 5 (position 3). Figure 6 As shown, the patient is examined.

[0051] Step S6: After the inspection is completed, the bed board 5 moves to the original position and steps S3-S4 are repeated.

[0052] Step S7: After the puncture is completed, the user operates on the console, and the processor receives the user's instructions from the console to control the air pump to deflate the arched elastic inflatable airbag 2 through the solenoid valve, and controls the guide rail sliding assembly 4 to operate so that the respiratory gating device is at the tail end of the bed.

[0053] like Figure 6 As shown, when the respiratory gating device is in the upper position of the patient's puncture site (position 2), the airbag target pressure value is set, and the airbag inflation work is started. After that, the respiratory state signal is collected and a waveform is provided. The user sets the corresponding threshold of the sound and light prompt of the puncture on the waveform to monitor whether the respiratory state is within the threshold range. When the respiratory state is within the threshold range, the sound and light prompt puncture is started and the enabling gating signal is issued. When the patient needs to undergo puncture confirmation and examination, the monitoring of the respiratory state is suspended, and the airbag is deflated. When the patient completes the examination, it returns to position 2, and the user can start again, and the user does not need to set the airbag target pressure value.

[0054] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Any technician familiar with the art can make many possible changes and modifications to the technical solution of the present invention by using the above disclosed methods and technical contents without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, all equivalent changes made according to the shape, structure and principle of the present invention without departing from the content of the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A respiratory gating device for assisting puncture, characterized in that: It includes a mechanical airbag unit and a control and measurement unit; The mechanical airbag unit comprises a guide rail sliding assembly, an arched bracket, an arched elastic inflatable airbag and an airway, wherein the arched bracket is slidably mounted on the bed through the guide rail sliding assembly, the arched elastic inflatable airbag is mounted on the lower side of the arched bracket, and the airway is fixedly mounted on the arched bracket and communicated with the arched elastic inflatable airbag; The arched elastic inflatable airbag is connected to the air pump in the control and measurement unit through an air channel.

2. A respiratory gating device for assisting puncture according to claim 1, characterized in that: The control and measurement unit includes a processor, a control console, an air pump, a solenoid valve, a pressure sensor and a waveform display, and the control console, the air pump, the solenoid valve, the pressure sensor and the waveform display are all electrically connected to the processor; The processor receives the user's instruction from the console to control the air pump to inflate and deflate the elastic inflatable airbag with arch belt through the electromagnetic valve, and detects the user's breathing state through the pressure sensor, and provides waveform display through the waveform display.

3. A respiratory gating device for assisting puncture according to claim 2, characterized in that: The control and measurement unit also includes a puncture needle insertion indicator. The user sets a threshold range according to needs. When the respiratory state signal reaches the threshold, the puncture needle insertion indicator provides an audible and visual indication signal.

4. A respiratory gating device for assisting puncture according to claim 3, characterized in that: The puncture needle reminder starts the sound and light reminder after reaching the set starting threshold value, and stops the sound and light reminder when reaching the set ending threshold value.

5. A respiratory gating device for assisting puncture according to claim 2, characterized in that: The control and measurement unit provides a gate signal output, which is used as a CT exposure trigger signal.

6. A respiratory gating device for assisting puncture according to claim 1, characterized in that: A bed board is slidably mounted on the hospital bed.

7. A control method based on the respiratory gating device according to any one of claims 1 to 6, characterized in that: The following steps are involved: Step S1: In the initial state, the user operates on the console to control the guide rail sliding assembly to operate so that the respiratory gating device is at the rear of the bed, making it convenient for the patient to get on and off the bed; Step S2: When the patient is positioned, the user operates on the console to control the guide rail sliding assembly to operate so that the respiratory gating device is located above the patient's puncture site; Step S3: The user operates on the console, and the processor receives the user's instruction on the console to control the air pump to inflate the arched elastic inflatable airbag through the solenoid valve, perform respiratory measurement monitoring, and detect the user's respiratory state through the pressure sensor, and provide waveform display through the waveform display; Step S4: After the puncture needle reminder starts the sound and light reminder, the doctor performs the puncture operation at the puncture site under the sound and light reminder; Step S5: When the patient needs to be moved for examination, the user operates on the console, and the processor receives the user's instruction on the console to control the air pump to deflate the arched elastic inflatable airbag through the solenoid valve, move the bed board of the bed, and examine the patient; Step S6: After the inspection is completed, the bed board moves to the original position and steps S3-S4 are repeated; Step S7: After the puncture is completed, the user operates on the console, and the processor receives the user's instructions from the console to control the air pump to deflate the arched elastic inflatable airbag through the solenoid valve, and controls the operation of the guide rail sliding assembly so that the respiratory gating device is at the tail end of the bed.

8. The control method according to claim 7, characterized in that: When the respiratory gating device is above the patient's puncture site, the airbag target pressure value is set and the airbag inflation is started. After that, the respiratory status signal is collected and a waveform is provided. The user sets the corresponding threshold for the sound and light prompt of puncture on the waveform to monitor whether the respiratory status is within the threshold range. When the respiratory status is within the threshold range, the sound and light prompt puncture is started and an enable gating signal is issued.

9. The control method according to claim 8, characterized in that: When the patient needs to undergo puncture confirmation and examination, the monitoring of the breathing status is suspended and the air bag is deflated. When the patient completes the examination, the user does not need to set the air bag target pressure value.

Images