WO2015081589A1

WO2015081589A1 - Inflatable vest capable of monitoring and controlling amplitude and phase of respiratory motion

Info

Publication number: WO2015081589A1
Application number: PCT/CN2013/090041
Authority: WO
Inventors: 刘苗生; 王崇宇; 刘泰华
Original assignee: 刘苗生
Priority date: 2013-12-06
Filing date: 2013-12-20
Publication date: 2015-06-11
Also published as: CN104689487A; CN104689487B

Abstract

An inflatable vest capable of monitoring and controlling the amplitude and phase of respiratory motion, the inflatable vest comprising front pieces (1), a back piece (2), at least one inflatable layer (8), in the front pieces (1) and back piece (2), divided into an inner layer, an outer layer, and a middle, and at least one of the front pieces (1) and back piece (2) are made of a polymeric material impermeable to air. The inflatable vest may be connected to a pressure measurement device (11), i.e. a flow sensor (14) or pressure sensor (13), and by means of the pressure measurement device (11), the pressure of the gas in the inflatable layer (8) of the inflatable vest is monitored in real time and changed into an electrical signal. In the inflatable vest, the front piece inner layer (1) and outer layer can be directly stitched or adhesively fixed on a vacuum pad (14), the vacuum pad (14) serving as the back piece (2), thus forming a combination inflatable vest; or, after a body membrane is fixed, the inflatable vest is again placed below the body membrane and used in combination. By means of monitoring and controlling the pressure inside the inflatable vest inflatable layer (8), the amplitude and phase of respiratory motion can be monitored and controlled in real time.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inflatable vest that can monitor and control the amplitude and phase of respiratory motion, which can monitor and control the amplitude of respiratory motion in real time. And the time. Background technique

Radiation Therapy In recent years, new technologies have influenced the use of respiratory gating techniques that have been used in radiotherapy. The use of the infrared line to observe the chest and abdominal wall activity to determine the amplitude and phase of respiratory motion, and the use of abdominal abdomen to control the abdomen. However, the chest and abdomen movements are small, and there is lateral movement. The infrared observation error is very large. The abdominal belt can only oppress the abdomen, and can not control the respiratory movement of the chest. Especially the pressure of the abdominal pressure is difficult to breathe. The cycle is adjusted. Both methods have large errors. It is not possible to accurately and effectively monitor respiratory movements. Summary of the invention

The technical solution adopted by the present invention to solve the technical problem is to design an inflatable vest made of a material such as a gas impermeable polymer material such as a gas impermeable plastic or rubber, including at least one of a front sheet, a back sheet, a front sheet and a back sheet. Divided into inner layer, outer layer and intermediate aeration layer. The inflatable vest can be connected to a pressure measuring device to monitor the pressure of the gas in the inflatable vest inflatable layer at any time. In addition, a two-way air pump pressurizing device can be used to quantitatively inflate or decompress the inflatable vest inflatable layer.

In particular, the present invention provides an inflatable vest that can monitor and control the amplitude and phase of respiratory motion, the inflatable vest comprising at least one of a front panel, a back panel, a front panel and a back panel, an outer layer, and An intermediate inflatable layer (i.e., a closed plenum), wherein at least one of the front and back panels is made of a gas impermeable polymeric material, and the inflatable vest is provided with a venting tube for inflating the inflatable layer. That is, the inner and outer layers of the front or back sheet of the inner layer, the outer layer and the intermediate layer are both airtight to achieve the function of inflating the gas-filled layer between the inner layer and the outer layer.

Preferably, the front sheet (including the inner layer of the front sheet and the outer layer of the front sheet in the case of having the inner layer and the outer layer) Made of a gas permeable polymer material, or a front sheet and a back sheet (including the inner and outer layers of the back sheet in the case where the back sheet has inner and outer layers) are made of a gas impermeable polymer material.

Preferably, the front panel is divided into a front panel inner layer, a front panel outer layer and an intermediate inflation layer, i.e., a closed inflation chamber, and the back panel is a single layer.

The gas-impermeable polymer material is preferably a gas-impermeable plastic cloth (for example, polyurethane cloth, polyamide cloth (nylon cloth), polyester cloth, etc., preferably air-impermeable transparent plastic cloth (air-tight transparent polyurethane cloth, polyamide cloth ( A nylon cloth, a polyester cloth, or a non-breathable rubber cloth (preferably a gas-impermeable transparent rubber cloth) may also be a gas-impermeable material formed by coating a gas-impermeable fiber cloth with a gas-impermeable coating.

Preferably, the inner layer of the front sheet is made of a non-breathable polymer material having a thin thickness, such as a gas-tight elastic spandex swimsuit fabric or a gas-tight elastic polyester fabric, preferably having a thickness of 1 to 50 μm, preferably 5 ~20 microns, more preferably 10 15 microns thick, the inner layer of the front piece is well deformed to conform to the respiratory motion of the thorax; the outer layer of the front piece is made of airtight or non-elastic (for example, having a certain rigidity or stiffness) The material is, for example, a thickness of 100 micrometers to 2.0 millimeters, preferably a thickness of 400 micrometers to 1.5 millimeters, more preferably a gas-impermeable plastic cloth or a rubber cloth having a thickness of 600 micrometers to 1.0 millimeters (for example, a gas-impermeable polyurethane cloth, a polyamide cloth (nylon cloth), Made of polyester cloth, etc.). Preferably, the inner layer of the front panel has a smaller size than the outer layer of the front panel. Polymer materials having a certain thickness are generally less elastic. The size of the outer and inner layers of the front panel can be divided into large, medium and small models depending on the size of the patient.

The inflatable vest may be a side opening or a front opening, preferably a side opening. Inflatable vests can be attached to the body surface by zippers or ties.

Preferably, the inflatable vest can be connected to a pressure measuring device by which the pressure of the gas in the aerated layer of the inflatable mascar is monitored in real time. The pressure measuring device is preferably a sensor capable of converting pressure into an electrical signal or a digital signal such as a pressure sensor, a photoelectric sensor, an infrared sensor or a flow sensor. The sensor records the gas pressure in the inflated vest in real time and can be controlled by an electrical signal to control the system to control the CT and the accelerator. For example, the sensor, such as a pressure sensor, a photoelectric sensor or an infrared sensor, converts the pressure into an electrical or digital signal and outputs it to a control system (e. g., a computer) through which the operation of the CT and the accelerator is controlled.

Preferably, the inflatable vest can be connected to an air pump, preferably a two-way air pump, by which the pneumatic inflation or suction decompression in the inflatable vest inflation layer is quantitatively quantified as needed.

In a preferred embodiment, the pressure measuring device is an integrated U-tube water column pressure measuring device, which comprises a chassis, a proximal cylindrical tube and a distal cylindrical tube connected to the chassis, a photoelectric sensor or an infrared sensor mounted on the distal cylindrical tube, and a proximal cylindrical tube communicating with the distal cylindrical tube (for example, through a small hole at the bottom) A water column is built in, and the proximal cylindrical tube is connected to a vent pipe provided on the inflatable vest via a switch, and the opening at the top of the distal cylindrical tube communicates with the outside air through a conduit and a switch. Preferably, the switch is a three-way switch, the first port is connected to the vent pipe on the inflatable vest, the second port is connected to the proximal cylindrical tube, and the third port is connected to the pressure sensor. Preferably, the switch is a four-way switch, the first port is connected to the vent pipe on the inflatable vest, the second port is connected to the proximal cylindrical tube, the third port is connected to the pressure sensor, and the fourth port is connected to the air pump. The integrated U-tube can be conveniently placed on the bed surface through the chassis. The above switches and air pumps can be controlled by the power supply automatic control system, and the switches can be turned on or off at the site or at a distance (for example, outside the machine room). A pressure sensor or photoelectric or infrared sensor integrated in the integrated U-tube can convert the pressure change into an electrical signal or a digital signal, record the gas pressure value in the inflatable vest in real time, and can control the CT and the accelerator through the electrical signal triggering and control system. .

Preferably, the underside of the inflatable vest is a neck.

Preferably, a marking aperture can be provided for the opaque inflatable vest. Preferably, the inflatable vest can directly suture or bond the inner layer and the outer layer of the front piece to the vacuum pad, and the vacuum pad acts as a rear piece to form a combined inflatable vest, or re-insert the inflatable vest after the body film is fixed. Used in combination under the body membrane. The beneficial effects of the present invention are: The amplitude and phase of the respiratory motion can be monitored and controlled in real time by monitoring and controlling the pressure inside the inflatable vest inflatable layer. BRIEF DESCRIPTION OF THE DRAWINGS The present invention will be further described with reference to the accompanying drawings and embodiments. FIG. 1 is an inner layer plan view of an inflated vest according to an embodiment of the present invention. FIG. 2 is an inner layer of an inflatable vest according to another embodiment of the present invention. Floor plan. Figure 3 is a schematic view of an integrated U-shaped water column pressure measuring device for a pneumatic vest. Figure 4 is a cross-sectional axial view of the patient after inhalation in a pneumatic vest. Figure 5 is a cross-sectional axial view of the end of expiration in the use of an inflatable vest. Figure 6 is a cross-sectional axial view of a front opening inflatable vest attached to a vacuum pad. LIST OF REFERENCE NUMERALS 1 : inner lining of inflatable vest, 101 : outer layer of front piece, 2: rear piece of inflatable vest, 3: cuff of inflatable vest, 4: zipper of inflatable vest, 104: lacing of inflatable vest , 5 : under the inflatable vest, 6: opaque inflatable vest marking hole, 8: inflatable layer, 9: inflatable vest snorkel, 10: switch, 11 : pressure measuring device, 12: air pump, 13 : pressure sensor , or flow sensor 14: vacuum pad, 201: distal cylindrical tube, 202: proximal cylindrical tube, 203: chassis, 204: small hole, 205: conduit, 206: conduit, 207: switch, 208: infrared or photoelectric sensor

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be specifically described by way of the drawings 1 is a plan view of an inner layer of an inflatable vest according to an embodiment of the present invention, wherein 1 is the front inner layer of the inflatable vest, 2 is the rear piece of the inflatable vest, 3 is the cuff of the inflatable vest, 4 is inflated The zipper of the vest, 5 is the undercut of the inflatable vest, and 6 is the marking hole of the opaque inflatable vest. 1 is a front opening (the zipper is centered), and the aeration layer 8 is not shown due to the back side of the front panel 1. Fig. 2 is a plan view showing the inner layer of the inflatable vest after deployment of another embodiment of the present invention. Among them, 1 is the inner layer of the inflatable vest, 2 is the rear piece of the inflatable vest, 3 is the cuff of the inflatable vest, 104 is the vest of the inflatable vest, 5 is the underside of the inflatable vest, 6 is the opaque inflatable vest Mark the hole. In Fig. 2, the inflatable vest is side open, and the inflatable layer 8 and the front outer layer 101 are not shown due to the back side of the outer layer of the front panel. As shown in Figs. 1 and 2, the marking hole 6 of the opaque inflatable vest is a slit extending through the inner and outer layers perpendicular to the long axis of the body surface. After the opaque inflatable vest is inflated, the marking of the patient's body surface can be observed through the marking hole 6.

3 is a schematic view of an integrated U-shaped water column pressure measuring device for a pneumatic vest, the pressure measuring device comprising: a chassis 203, a proximal cylindrical tube 202 and a distal cylindrical tube 201 forming an integrated U-shaped tube connected to the chassis 203 An infrared sensor or photoelectric sensor 208, a gas pump 12, a pressure sensor 13, a photoelectric or infrared sensor (208) mounted on the distal cylindrical tube 201, and the proximal cylindrical tube 202 and the distal cylindrical tube 201 communicate with each other through the bottom small hole 204. A water column is built in, and the proximal cylindrical tube 202 is connected via a switch 10 through a conduit 205 to a vent tube 9 disposed on the inflatable vest. The opening at the top of the distal cylindrical tube 201 communicates with outside air through the conduit 206 and the switch 207. The first port of the switch is connected to the vent tube 9 on the inflatable vest, The second port is connected to the proximal cylindrical tube 202, the third port is connected to the pressure sensor 13, and the fourth port is connected to the air pump 12. The integrated U-tube is conveniently placed on the bed by the chassis (203). The bottom of the two cylindrical tubes is communicated with a small hole (204), and the proximal cylindrical tube (202) communicates with the inflation layer 8 (inflating chamber) through the inflation tube (9) provided on the inflatable vest, and the top end of the distal cylindrical tube (201) The opening is communicated with the outside air through the gas tube (206) and the three-way switch (207), and the switch 207 and the air pump (12) can be controlled by the power supply automatic control system, and can be opened on site or remotely (for example, outside the machine room). Or turn off the switch. The pressure sensor (13) or the photoelectric or infrared sensor (208) can convert the pressure change into an electrical or digital signal, record the gas pressure in the inflated vest in real time, and control the CT and the accelerator through the electrical signal triggering and control system. Figure 4 is a cross-sectional axial view of the inflated vest after the patient inhales: At this time, when the patient inhales, the chest and abdomen expand, and the inner layer 1 of the front of the inflatable vest is squeezed to swell upward, and then the inflatable vest Due to the lack of elasticity of the outer layer of the front piece, the shape is basically unchanged. As a result, the gas volume in the aerated layer of the inflatable vest (inflating chamber) 8 is reduced, and the gas vent pipe 9 enters the open integrated "U" type water column manometer 11 to push The water column in the distal end of the integrated U-shaped tube rises, and the water column of the proximal U-tube is lowered. In the figure: 1 is the inner layer of the inflatable vest, 2 is the inflatable vest, and 101 is the outer layer of the inflatable vest. 8 is the inflatable layer of the inflatable vest, 9 is the snorkel of the inflatable vest, 10 is the switch connected on the inflatable vest snorkel, and 11 is a "U" type water column pressure measuring device connected by the inflatable vest. 12 is an air pump, 13 is a pressure sensor connected to the switch of the inflatable vest, and 208 is an infrared sensor or a photoelectric sensor, and the pressure sensor or the photoelectric or infrared sensor can convert the movement change of the pressure or the water column into an electrical signal or a digital signal. The value of the gas pressure in the inflatable vest is recorded in real time, and the CT and the accelerator can be controlled by the electrical signal triggering and control system. Figure 5 is a cross-sectional axial view of the end of expiration in the use of an inflatable vest. In contrast to Fig. 4, the end-expiratory chest and abdomen contraction, the inner layer 1 of the inflatable vest front piece moves under the pressure of the water column and the elasticity of the inner layer 1 of the front piece is closely attached to the surface of the patient, and the gas enters through the vent pipe 9 from the outside. The aerated layer and the aerated layer are enlarged. During radiotherapy, when the patient wears the inflatable vest to complete the positioning, the vent pipe 9, 201 is opened at the end of inhalation, and the U-tube switch 10, 207 is integrated, so that the aeration layer 8 communicates with the outside, the pressure and atmospheric pressure in the aeration layer balance. At this time, since the inner layer 1 of the front panel of the inflatable vest is smaller than the outer layer 101 of the front panel and is elastic, like a cymbal pulled on both sides, the elastic force causes the inner layer 1 of the front panel to contract with the contraction of the chest and abdomen. The outer layer of the inflatable vest front piece has no elasticity and the shape does not change much, so the inflatable layer 8 is enlarged, as shown in Fig. 5. Then start inhaling, the chest and abdomen expand, squeeze the inner layer of the inflatable vest to expand at the same time, because the outer layer of the inflatable vest front piece has no elasticity and cannot expand, as a result, the pressure in the inflatable vest inflatable layer is increased, and the gas vent pipe 9 is opened. The integrated "U"-type water column pressure gauge 11 pushes the water level of the 202 pipe of the integrated U-shaped pipe to drop while the water column of the pipe rises in 201;

Then enter the exhalation phase as shown in Fig. 5. At this time, the chest and abdomen contract, and the elastic force causes the inner layer 1 of the front piece to contract with the contraction of the chest and abdomen, and the pressure of the high water column in the U-tube 201 is integrated to force the gas to pass through the snorkel. 9 Entering the aerated layer of the inflatable vest, as a result, the aerated layer is enlarged, and the high water column in the tube of the integrated U-shaped tube 201 is lowered. Observe the change in the water column to calculate the amplitude and phase of the breath. As shown in Figures 4 and 5, when it is necessary to control the amplitude of the movement during breathing, an air pump 12 can be connected to the three-way switch 10 to inflate the inflatable vest inflatable layer 8 as needed to induce and train the patient according to the required amplitude and time. Breathing, if necessary, can compress the chest and abdomen for a short time to force the patient to suffocate at the end of expiration. This all-round chest and abdomen compression is more effective than the current use of the abdominal belt to compress the abdomen to control breathing, and can also achieve periodic pressure-decompression as required, or even by sensing the phase of the patient's spontaneous breathing cycle. Simultaneous pressurization and decompression. This is very helpful for training and inducing patients to respond to the required standard amplitude and phase breathing. In particular, it can ensure that the pressure of the phase is determined without disturbing the normal respiratory rhythm of the patient, and the patient can synchronously pause the breathing at the end of the expiratory breath to ensure that the target area of the lung or upper abdomen does not move with the breathing movement. Figure 6 is a cross-sectional axial view of a front-opening inflatable vest attached to a vacuum pad: The two front panels 1 of the inflatable vest are directly stitched or bonded to the vacuum pad 14 to form a combined inflatable vest, vacuum The pad 14 replaces the inflatable vest back piece 2. 4 is the zipper of the inflatable vest, 8 is the inflatable layer of the inflatable vest, 9 is the snorkel of the inflatable vest, 10 is the three-way switch connected to the inflatable vest snorkel, and 11 is a "U" connected to the three-way switch of the inflatable vest "The water column pressure measuring device, 12 is a two-way air pump connected to the three-way switch of the inflatable vest, and 13 is a pressure sensor connected to the three-way switch of the inflatable vest. During the above breathing process, the pressure sensor 13 or the infrared or photoelectric sensor 208 can convert the movement of the pressure or the water column into an electrical signal or a digital signal, and record the value of the gas pressure in the inflatable vest in real time, thereby detecting the amplitude and time of the breathing movement. Phase and can be controlled by electrical signals, control system control CT and accelerator. For example, the pressure sensor, photosensor or infrared sensor converts the pressure into an electrical or digital signal and outputs it to a control system (such as a computer) through which the operation of the CT and the accelerator is controlled. The switches and the switches of the inflated two-way air pump 12 are all controlled by the power supply automatic control system, and these switches can be turned on or off as needed in the field or outside the machine room.

Claims

Claim

An inflatable vest that monitors and controls the amplitude and phase of respiratory motion, wherein the inflatable vest includes at least one of a front panel, a back panel, a front panel, and a back panel, an outer layer, an outer layer, and a middle portion Inflating layer, wherein at least one of the front piece and the back piece is made of a gas-impermeable polymer material, and the inflatable vest is provided with a vent pipe for inflating the gas-filled layer, preferably, the front piece is divided into the inner layer of the front piece , the outer layer of the front sheet and the middle inflatable layer, and the back sheet is a single layer.

2. The inflatable vest of claim 1 wherein the inflatable vest is coupled to a pressure measuring device for monitoring the pressure of the gas in the inflatable vest inflation layer in real time.

3. The inflatable vest according to claim 2, wherein the pressure measuring device is an integrated U-tube water column pressure measuring device, comprising: a chassis, a proximal cylindrical tube and a distal cylindrical tube connected to the chassis, A photoelectric sensor or an infrared sensor mounted on a distal cylindrical tube for converting pressure into an electrical signal or a digital signal, the proximal cylindrical tube is in communication with the distal cylindrical tube and has a water column built therein, and the proximal cylindrical tube is disposed through the switch The vent pipe connection on the inflatable vest, the opening at the top of the distal cylindrical tube communicates with the outside air through the conduit and the switch; preferably, the switch is a three-way switch, the first port is connected with the vent pipe on the inflatable vest, the second port is a proximal cylindrical tube connection, a third port connected to the pressure sensor or a flow sensor; more preferably, the switch is a four-way switch, the first port is connected to the vent tube on the inflatable vest, and the second port is connected to the proximal cylindrical tube, The third port is connected to the pressure sensor and the fourth port is connected to the air pump.

The inflatable vest according to any one of claims 1 to 3, wherein the inflatable vest is connected to a two-way air pump, and the two-way air pump is used to quantitatively pressurize or inflate the inflatable vest inflatable layer as needed. Pressure.

The inflatable vest according to any one of claims 1 to 4, wherein the gas-impermeable polymer material is a gas-impermeable plastic cloth or a gas-impermeable rubber cloth or coated on a gas permeable fiber cloth. A gas impermeable material formed by a gas impermeable coating.

The inflatable vest according to any one of claims 1 to 5, wherein the inner layer of the front sheet is made of elastic having a thickness of 1 to 50 μm, preferably 5 to 20 μm, more preferably 10 15 μm. The gas permeable polymer material is made of a gas-tight elastic spandex swimsuit fabric or a gas-tight elastic polyester fabric; the outer layer of the front sheet is made of a non-breathable material having low or no elasticity, for example, a thickness of 100 μm to 2.0 mm, preferably a thickness of 400 μm to 1.5. It is made of a gas-impermeable plastic cloth or a rubber cloth having a thickness of 600 μm to 1.0 mm.

7. An inflatable vest according to any of claims 3-6, characterized in that the photoelectric sensor or red The external sensor converts the pressure change into an electrical signal or a digital signal, records the value of the gas pressure in the inflatable vest in real time, and triggers the operation of the CT and the accelerator by the electrical signal triggering, control system; preferably, the switch and

/ or the air pump is controlled by the power supply automatic control system, which can be turned on or off at the scene or at a distance.

The inflatable vest according to any one of claims 1 to 3, characterized in that the underside of the inflatable vest is a neck.

The inflatable vest according to any one of claims 1 to 3, characterized in that a marking hole is provided for the opaque air-filling vest.

The inflatable vest according to any one of claims 1 to 3, wherein the inflatable vest directly sutures or bonds the inner and outer layers of the front sheet to a vacuum pad, and the vacuum pad serves as a back sheet. Form a combined inflatable vest, or re-attach the inflatable vest under the body membrane after the body membrane is fixed.