CN113288104A - Novel intracranial pressure monitoring device - Google Patents
Novel intracranial pressure monitoring device Download PDFInfo
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- CN113288104A CN113288104A CN202110495269.1A CN202110495269A CN113288104A CN 113288104 A CN113288104 A CN 113288104A CN 202110495269 A CN202110495269 A CN 202110495269A CN 113288104 A CN113288104 A CN 113288104A
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- 238000007917 intracranial administration Methods 0.000 title claims abstract description 43
- 238000012806 monitoring device Methods 0.000 title claims abstract description 17
- 238000001514 detection method Methods 0.000 claims abstract description 28
- 239000007788 liquid Substances 0.000 claims abstract description 24
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 238000004659 sterilization and disinfection Methods 0.000 claims description 49
- 238000000034 method Methods 0.000 claims description 16
- 238000012545 processing Methods 0.000 claims description 15
- 239000000428 dust Substances 0.000 claims description 10
- 238000000746 purification Methods 0.000 claims description 9
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- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 5
- 238000003780 insertion Methods 0.000 claims description 5
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- 230000001502 supplementing effect Effects 0.000 claims 1
- 239000013589 supplement Substances 0.000 abstract description 8
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- 230000001954 sterilising effect Effects 0.000 description 8
- LVROLHVSYNLFBE-UHFFFAOYSA-N 2,3,6-trichlorobiphenyl Chemical compound ClC1=CC=C(Cl)C(C=2C=CC=CC=2)=C1Cl LVROLHVSYNLFBE-UHFFFAOYSA-N 0.000 description 4
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- 206010048038 Wound infection Diseases 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/03—Detecting, measuring or recording fluid pressure within the body other than blood pressure, e.g. cerebral pressure; Measuring pressure in body tissues or organs
- A61B5/031—Intracranial pressure
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
- A61L2/08—Radiation
- A61L2/10—Ultraviolet radiation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/007—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by irradiation
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- G—PHYSICS
- G01—MEASURING; TESTING
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- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
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Abstract
The invention relates to the technical field of medical instruments, in particular to a novel intracranial pressure monitoring device; the invention comprises a monitor, a horizontal component, a detection component and a balance component, wherein the horizontal component is controlled by the monitor, the horizontal component comprises an electric telescopic rod, a supporting plate and an electronic gyroscope, the electric telescopic rods are arranged at the top corners of the top surface of the monitor, the top parts of the electric telescopic rods are respectively provided with a hinged ball, the top corners of the bottom plate surface of the supporting plate are respectively provided with a ball hinge seat matched with the hinged ball, the detection component comprises a U-shaped pipe, a distance sensor and an air pressure sensor, the pipe orifice of the U-shaped pipe is respectively provided with a sealing plug, the bottom of the sealing plug is respectively provided with the distance sensor and the air pressure sensor, the pipe body of the U-shaped pipe close to the pipe orifice of the U-shaped pipe is respectively provided with a connecting pipe, the U-shaped pipe is filled with detection liquid, and the balance component comprises a pressure release valve mounting seat, an air storage tank, an air supplement pipe, a pressure release pipe and an electromagnetic pressure release pipe; the invention can effectively solve the problems of poor safety, large measurement error and the like in the prior art.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a novel intracranial pressure monitoring device.
Background
Measuring intracranial pressure is a routine post-operative task for patients with brain surgery.
In the application number: CN 201922195258.2's patent document discloses an intracranial pressure measuring device after operation, relates to brain surgery operation monitoring instrument technical field, including rubber tube and measuring equipment, the front end fixedly connected with switching pipe of rubber tube, the rear end of rubber tube is equipped with the sealing plug, the front end outside of rubber tube has cup jointed the sleeve area, the clip has been cup jointed in the rear end outside of rubber tube, the output and the measuring equipment electricity of sleeve area are connected, measuring equipment's fixed surface is connected with the display, measuring equipment's being equipped with central processing unit, storage module and power module, be equipped with pressure sensor in the sleeve area. This intracranial pressure measuring device of postoperative utilizes rubber tube one end to be connected with intracranial drainage tube, and the other end is sealed, avoids cerebrospinal fluid and external world to communicate with each other, reduces intracranial infection, need not keep the instrument perpendicular, avoids hanging the instrument with the rope to reduce the risk that intracranial drainage tube tractive dragged out.
However, the following disadvantages still exist in the practical application process:
first, the security is not good because the device in the above-mentioned comparison file is at the in-process of the intracranial unnecessary pressure of release patient, and the rubber tube can make the inside pollution that receives the outside air of rubber tube with the plug of relapseing of sealing plug to patient's wound infection's risk has been increased.
Secondly, the measurement error is large, because the device in the above-mentioned comparison file measures the intracranial pressure of the patient indirectly through measuring the tension of the cuff in the process of expanding the rubber tube, because the rubber tube has certain elasticity, this makes the cuff have certain error when measuring the internal air pressure of the rubber tube, and the device in the above-mentioned comparison file can only monitor the patient of intracranial high pressure, but can not monitor the patient of intracranial low pressure.
Disclosure of Invention
The present invention is directed to solving the problems of the prior art, and the problems set forth in the background above.
In order to achieve the purpose, the invention adopts the following technical scheme: a novel intracranial pressure monitoring device comprises a monitor, a horizontal component, a detection component and a balance component, wherein the horizontal component, the detection component and the balance component are controlled by the monitor;
the horizontal assembly comprises an electric telescopic rod, a supporting plate and an electronic gyroscope, the electric telescopic rods are arranged at the top corners of the top surface of the monitor, the top parts of the electric telescopic rods are provided with hinged balls, the top corners of the bottom plate surface of the supporting plate are provided with spherical hinge seats matched with the hinged balls, and the electronic gyroscope is arranged on the bottom plate surface of the supporting plate;
the detection assembly comprises a U-shaped pipe, a distance sensor and an air pressure sensor, the U-shaped pipe is vertically arranged on a support plate, sealing plugs are arranged at pipe orifices of the U-shaped pipe, the bottom of each sealing plug is provided with the distance sensor and the air pressure sensor, connecting pipes are arranged on pipe bodies of the U-shaped pipe close to the pipe orifices of the U-shaped pipe, and detection liquid is injected into the U-shaped pipe;
the balance assembly comprises a mounting seat, a second air pressure sensor, an air storage tank, an air supplement pipe, a pressure relief pipe and an electromagnetic relief valve, the mounting seat is arranged on the supporting plate, the second air pressure sensor is arranged on the outer surface of the mounting seat, the air storage tank is arranged in a mounting groove in the top of the mounting seat, an air outlet pipe in the top of the mounting seat is connected with a connecting pipe on a pipe body at the right end of the U-shaped pipe in a sealing mode through the air supplement pipe, the pressure relief pipe is arranged on the pipe body at the right end of the U-shaped pipe, the electromagnetic relief valve is arranged on the pressure relief pipe, and an opening of the air outlet pipe, which is located inside the mounting seat, is connected with an output end of the air storage tank in a sealing mode.
Furthermore, the outer wall of the monitor is provided with a display screen, a key module, an interface module and a loudspeaker, a PCB and a power module are arranged in the accommodating cavity inside the monitor, and the PCB is provided with a processing module and a storage module.
Furthermore, flexible anti-skid foot pads are arranged at the top corners of the bottom of the monitor, and negative pressure grooves are uniformly distributed on the bottom surfaces of the anti-skid foot pads.
Furthermore, a positioning table matched with the U-shaped pipe is fixed on the outer wall of the pipe body in the middle of the U-shaped pipe in a sleeved mode, an inserting block is fixed at the bottom of the positioning table, and an inserting groove matched with the inserting block is formed in the plate body on the top of the supporting plate; the liquid level detection device is characterized in that floats floating on the liquid level of detection liquid are arranged in the pipe bodies at the two ends of the U-shaped pipe, limiting rings matched with the floats are arranged inside the pipe bodies at the two ends of the U-shaped pipe, and the two limiting rings are the same in height in the vertical direction and are located above the floats.
Furthermore, adsorption magnets are arranged inside the insertion block and inside the support plate at the bottom wall of the insertion groove; scale marks are arranged on the pipe bodies at the two ends of the U-shaped block, and the U-shaped pipe is made of a hard transparent material which meets the medical standard; the upper end surface of the floater is evenly plated with a mirror layer.
Furthermore, a three-way pipe is hermetically connected to the outer end pipe orifice of the connecting pipe on the left end pipe body of the U-shaped pipe, and an electromagnetic discharge valve and a drainage pipe are respectively arranged on the other two pipe bodies of the three-way pipe.
Further, the distance sensor is a laser type sensor, and the operation principle of the distance sensor is any one of a phase method and a laser triangulation method.
Furthermore, a purification assembly connected with the input end of the gas storage tank is further arranged on the supporting plate, the purification assembly comprises a dust removal box, a disinfection box and a gas pump, and the output end of the dust removal box, the input end of the disinfection box, the output end of the disinfection box, the input end of the gas pump, the output end of the gas pump and the input end of the gas storage tank are sequentially communicated through a gas guide pipe; and the air storage tank is also provided with an air pressure switch controlled by the monitor.
Further, the inside of disinfection box is equipped with four baffles symmetrically, is the closest in spatial region between two baffles of disinfection box one end is first disinfection chamber, is the closest in spatial region between two baffles of the disinfection box other end is the second disinfection chamber, be equipped with a set of transparent spiral pipe in the first disinfection chamber, be equipped with a set of silver-colored spiral pipe in the second disinfection chamber, the mouth of pipe of transparent spiral pipe, silver-colored spiral pipe all with the baffle that corresponds on the pipe groove sealed fixed connection, be equipped with the ultraviolet lamp that receives monitor control on the inner wall of first disinfection chamber.
Furthermore, the inner wall of the first disinfection cavity is uniformly plated with a reflecting layer.
Compared with the prior art, the invention has the advantages and positive effects that,
the monitor, the horizontal component, the detection component and the balance component are additionally arranged, wherein the horizontal component, the detection component and the balance component are controlled by the monitor, the electric telescopic rods, the supporting plate and the electronic gyroscope are arranged at the top corners of the top surface of the monitor, the electric telescopic rods are arranged at the tops of the electric telescopic rods, the spherical hinge seats matched with the hinge balls are arranged at the top corners of the bottom plate surface of the supporting plate, and the electronic gyroscope is arranged on the bottom plate surface of the supporting plate; the detection assembly comprises a U-shaped pipe, a distance sensor and an air pressure sensor, the U-shaped pipe is vertically arranged on the supporting plate, sealing plugs are arranged at pipe orifices of the U-shaped pipe, the bottom of each sealing plug is provided with the distance sensor and the air pressure sensor, connecting pipes are arranged on pipe bodies of the U-shaped pipe close to the pipe orifices, and detection liquid is injected into the U-shaped pipe; the balance assembly comprises a mounting seat, a second air pressure sensor, an air storage tank, an air supplement pipe, a pressure relief pipe and an electromagnetic pressure relief valve, the mounting seat is arranged on the supporting plate, the second air pressure sensor is arranged on the outer surface of the mounting seat, the air storage tank is arranged in a mounting groove in the top of the mounting seat, an air outlet pipe in the top of the mounting seat is hermetically connected with a connecting pipe on a pipe body at the right end of the U-shaped pipe through the air supplement pipe, the pressure relief pipe is arranged on the pipe body at the right end of the U-shaped pipe, the electromagnetic pressure relief valve is arranged on the pressure relief pipe, and a pipe orifice of the air outlet pipe, which is positioned in the mounting seat, is hermetically connected with an output end of the air storage tank; all be equipped with in the body at U type pipe both ends and float in detecting the float on the liquid level to still be equipped with the purification subassembly of being connected with the gas holder input in the backup pad, the purification subassembly includes dust removal box and disinfection box, the output of dust removal box, the input of disinfection box, the output of disinfection box and the input of gas holder communicate through the air duct in proper order, still be equipped with the baroswitch that receives monitor control on the gas holder, the outer end mouth of pipe department sealed of the connecting tube on the left end body of U type pipe is connected with the three-way pipe, be equipped with the electromagnetism blow-off valve respectively on two other bodies of three-way pipe, the design of drainage tube.
The monitoring instrument can keep the air pressure inside the pipe body at the right end of the U-shaped pipe consistent with the outside all the time through the matching of the first air pressure sensor, the air storage tank, the electromagnetic pressure release valve and the second air pressure sensor at the right end of the U-shaped pipe, and can simultaneously realize the intracranial pressure reduction and intracranial pressure monitoring capabilities of a patient under the matching of the purification component and the three-way pipe, so that the risk of infection in the intracranial pressure reduction process of the patient is effectively reduced; in addition, the intracranial pressure of the patient can be directly measured by the monitor through the air pressure sensor at the left end of the U-shaped pipe, and the liquid level difference at the two ends of the U-shaped pipe can be measured by the monitor through the two distance sensors, so that the air pressure inside the pipe body at the left end of the U-shaped pipe (namely the intracranial pressure of the patient) can be indirectly measured, and the monitor can carry out comprehensive analysis through the two measurement results, so that the intracranial pressure of the patient can be more accurately obtained.
By the invention, the safety of the product on patients in practical application and the accuracy of monitoring results can be effectively improved.
Drawings
FIG. 1 is a pictorial view of the present invention from a first perspective;
FIG. 2 is a partially exploded view of the present invention from a second perspective;
FIG. 3 is an exploded view of the support plate and the electric telescopic rod according to a third aspect of the present invention;
FIG. 4 is a schematic view of a fourth angle of view of the lower support plate of the present invention, shown in partial cross-section;
FIG. 5 is a schematic view of the monitor of the present invention at a fifth viewing angle;
FIG. 6 is a schematic view of the monitor of the present invention at a sixth viewing angle, partially in section;
FIG. 7 is a pictorial view, partially in section, of a sterilization case according to a seventh aspect of the present invention;
FIG. 8 is a schematic view of a plug-in block at an eighth viewing angle in partial cross section according to the present invention;
FIG. 9 is an exploded view of a U-shaped tube of a ninth aspect of the present invention, partially in section;
FIG. 10 is a cross-sectional view, partially in section, of the cassette at the first sterilization chamber of the sterilization cassette of the present invention;
FIG. 11 is an enlarged view of area A of FIG. 2;
FIG. 12 is an enlarged view of area B of FIG. 2;
FIG. 13 is an enlarged view of area C of FIG. 5;
FIG. 14 is an enlarged view of area D of FIG. 9;
FIG. 15 is an enlarged view of area E of FIG. 9;
FIG. 16 is an enlarged view of area F of FIG. 9;
the reference numerals in the drawings denote: 1-a monitor; 2, an electric telescopic rod; 3-a support plate; 4-an electronic gyroscope; 5-a hinge ball; 6-spherical hinge seat; 7-U-shaped pipe; 8-a distance sensor; 9-a first air pressure sensor; 10-a sealing plug; 11-a coupling tube; 12-a mounting seat; 13-a second barometric pressure sensor; 14-a gas storage tank; 15-air supplement pipe; 16-a pressure relief tube; 17-an electromagnetic relief valve; 18-a mounting groove; 19-an air outlet pipe; 20-a display screen; 21-a key module; 22-an interface module; 23-a loudspeaker; 24-a PCB board; 25-a power supply module; 26-a processing module; 27-a storage module; 28-anti-slip foot pad; 29-negative pressure groove; 30-a positioning table; 31-a plug-in block; 32-a plug groove; 33-a float; 34-a limit ring; 35-attracting magnet; 36-mirror layer; 37-a solenoid drain valve; 38-a drainage tube; 39-a dust removal box; 40-a disinfection box; 41-an air pump; 42-an airway tube; 43-pneumatic switch; 44-a separator; 45-a first disinfection chamber; 46-a second disinfection chamber; 47-transparent spiral tube; 48-silver spiral tube; 49-pipe groove; 50-an ultraviolet lamp; 51-reflective layer.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.
Examples
The novel intracranial pressure monitoring device provided by the embodiment is as follows, referring to fig. 1-16: comprises a monitor 1, and a horizontal component, a detection component and a balance component which are controlled by the monitor.
The horizontal component comprises an electric telescopic rod 2, a supporting plate 3 and an electronic gyroscope 4, the electric telescopic rods 2 are arranged at the vertex angles of the top surface of the monitor 1, the hinging balls 5 are arranged at the tops of the electric telescopic rods 2, the spherical hinge seats 6 matched with the hinging balls 5 are arranged at the vertex angles of the bottom plate surface of the supporting plate 3, and the electronic gyroscope 4 is arranged on the bottom plate surface of the supporting plate 3; like this, processing module 26 can monitor the spatial state of backup pad 3 through electron gyroscope 4 to adjust four electric telescopic handle 2, thereby make backup pad 3 keep the level, thereby make the detection liquid in the pipe body of U type pipe 7 both ends keep the level under natural state (i.e. U type pipe 7 both ends mouth of pipe all communicates with the external world).
The detection assembly comprises a U-shaped pipe 7, a distance sensor 8 and a gas pressure sensor, the U-shaped pipe 7 is vertically arranged on the supporting plate 3, a sealing plug 10 is arranged at the pipe orifice of the U-shaped pipe 7, the distance sensor 8 and the gas pressure sensor are arranged at the bottom of the sealing plug 10, a connecting pipe 11 is arranged on the pipe body of the U-shaped pipe 7 close to the pipe orifice, and detection liquid is injected into the U-shaped pipe 7.
The balanced subassembly includes mount pad 12, second air pressure sensor 13, the gas holder 14, air supplement pipe 15, 16 and the electromagnetism relief valve 17 of pressure release pipe, mount pad 12 sets up in backup pad 3, second air pressure sensor 13 sets up the surface at mount pad 12, gas holder 14 sets up in the mounting groove 18 at mount pad 12 top, 19 coupling pipes 11 on outlet duct and the 7 right-hand members bodys of U type pipe at mount pad 12 top pass through air supplement pipe 15 sealing type and are connected, 16 setting of pressure release pipe are on the body of 7 right-hand members of U type pipe, electromagnetism relief valve 17 sets up at 16 pressure release pipe, outlet duct 19 is in the inside mouth of pipe of mount pad 12 and is connected with 14 output sealing of gas holder 14.
In this embodiment, the electromagnetic relief valve 17 is a check valve, which can further improve the sanitation inside the U-shaped tube 7.
The outer wall of the monitor 1 is provided with a display screen 20, a key module 21, an interface module 22 and a loudspeaker 23, a PCB 24 and a power module 25 are arranged in an accommodating cavity in the monitor, and the PCB 24 is provided with a processing module 26 and a storage module 27; the content displayed by the display screen 20 includes, but is not limited to, the monitored value of the first air pressure sensor 9, the monitored value of the second air pressure sensor 13, the state of the electronic gyroscope 4, the monitored value of the distance sensor 8, the operating state of the electromagnetic relief valve 17, the electric quantity of the power module 25, the internal air capacity of the air storage tank 14, the operating state of the air pressure switch 43, the operating state of the ultraviolet lamp 50, and the operating state of the air pump 41; wherein the storage module 27 is used for storing corresponding control programs and data, and the interface module 22 is used for electrically connecting the PCB 24 with an external power supply (including but not limited to ac 220V commercial power) and other electrical components (including but not limited to the first air pressure sensor 9, the second sensor, the distance sensor 8, the electromagnetic relief valve 17, the air pump 41, the ultraviolet lamp 50, the air pressure switch 43, the electromagnetic relief valve 37, and the like).
Flexible anti-skid foot pads 28 are arranged at the top corners of the bottom of the monitor 1, and negative pressure grooves 29 are uniformly distributed on the bottom surface of the anti-skid foot pads 28 (so that the anti-skid foot pads 28 can be firmly adsorbed on a table top, and the monitor 1 is effectively prevented from sliding on the table top); therefore, the stability of the monitor 1 placed on a desktop can be improved; the anti-slip foot pad 28 is made of rubber material in this embodiment.
A positioning table 30 matched with the U-shaped pipe 7 is fixed on the outer wall of the pipe body in the middle of the U-shaped pipe 7 in a sleeved mode, an inserting block 31 is fixed at the bottom of the positioning table 30, an inserting groove 32 matched with the inserting block 31 is formed in the plate body on the top of the supporting plate 3, and adsorption magnets 35 are arranged inside the inserting block 31 and inside the supporting plate 3 at the bottom wall of the inserting groove 32; therefore, the U-shaped pipe 7 can be stably and reliably vertically arranged on the supporting plate 3, and the U-shaped pipe 7 and the supporting plate 3 can be conveniently detached.
The tube bodies at the two ends of the U-shaped tube 7 are respectively provided with a floater 33 floating on the liquid level of the detection liquid, and the upper end surface of the floater 33 is uniformly plated with a mirror layer 36; the distance sensor 8 is a laser type sensor, and the working principle of the distance sensor 8 is either a phase method or a laser triangulation method (in this embodiment, the working principle of the distance sensor 8 is a phase method), so that the accuracy of the distance sensor 8 in detecting the height difference of the liquid level inside the pipe bodies at the two ends of the U-shaped pipe 7 can be improved.
The distance measurement principle of the laser sensor adopting the phase method is as follows:
the phase method is to modulate one or more low frequencies (relative to the frequency of the light) on the laser, similar to a radio station modulating an audio signal on a radio frequency signal. The specific method comprises the following steps: the low-frequency signal is used for controlling the laser output power, so that the power of the received laser reflection signal also changes along with the low-frequency signal, and the phase of the received signal is compared with the phase of the output signal, so that the distance between the reflection surfaces can be calculated:
d: distance, C: speed of light, Φ: phase shift, f: measuring tape frequency (i.e. low frequency signal frequency)
From the above formula one can deduce: in the case where the detection accuracy of the phase difference is not changed, the higher the frequency is, the smaller the minimum D that can be obtained becomes, and the higher the measurement accuracy becomes.
It is worth noting that:
let the distance D1 be X for the object A
When the object B is at a distance D2 of X + nC/2f ( n 1,2, 3.), the system cannot distinguish the distance between the two because B is just an integer multiple of half a wavelength more than a, and then just an integer multiple of one wavelength more than a once. Thus, phase-method ranging is range limited, with the range being less than half the wavelength of the modulated signal.
In order to take account of both range and accuracy, a conventional phase-method distance meter simultaneously modulates signals with several frequencies, i.e. simultaneously uses a plurality of measuring rulers.
Limiting rings 34 matched with the floats 33 are arranged in the pipe bodies at two ends of the U-shaped pipe 7, the two limiting rings 34 are same in height in the vertical direction and are positioned above the floats 33, and therefore the limiting rings 34 can be prevented from moving in the U-shaped pipe 7 without limitation, and meanwhile detection liquid in the U-shaped pipe 7 can be effectively prevented from overflowing from the connecting pipe 11.
All be equipped with the scale mark on the body at U type piece both ends, can make things convenient for the doctor to come the direct intracranial pressure of knowing the patient through the liquid level of observing the inside detection liquid of U type pipe 7 like this, U type pipe 7 adopts the stereoplasm transparent material that accords with medical standard to make.
A three-way pipe is hermetically connected with the pipe orifice of the outer end of the connecting pipe 11 on the left end pipe body of the U-shaped pipe 7, and an electromagnetic discharge valve 37 and a drainage pipe 38 are respectively arranged on the other two pipe bodies of the three-way pipe; wherein the other end of the drainage tube 38 is communicated with the intracranial of the patient, so as to transmit the intracranial pressure of the patient into the left end tube body of the U-shaped tube 7; wherein, the tee pipe is provided with a pipe body of the electromagnetic discharge valve 37 for the function; when the intracranial pressure of the patient is too high, the doctor can instruct the electromagnetic discharge valve 37 to be opened through the key module 21, so that the redundant intracranial pressure of the patient is released; note that the electromagnetic discharge valve 37 is a check valve.
The support plate 3 is also provided with a purification component connected with the input end of the gas storage tank 14, the purification component comprises a dust removal box 39, a disinfection box 40 and an air pump 41, and the output end of the dust removal box 39, the input end of the disinfection box 40, the output end of the disinfection box 40, the input end of the air pump 41, the output end of the air pump 41 and the input end of the gas storage tank 14 are sequentially communicated through an air duct 42; the air storage tank 14 is also provided with an air pressure switch 43 controlled by the monitor 1, so that the air pressure in the air storage tank 14 can be always kept at a proper value; in this embodiment, the dust-removing box 39 is a high-efficiency air filter, so that the air entering the air tank 14 does not contain dust and aerosol.
Four partition plates 44 are symmetrically arranged inside the disinfection box 40, a space area between the two partition plates 44 closest to one end of the disinfection box 40 is a first disinfection chamber 45, a space area between the two partition plates 44 closest to the other end of the disinfection box 40 is a second disinfection chamber 46, a group of transparent spiral tubes 47 are arranged in the first disinfection chamber 45, a group of silver spiral tubes 48 are arranged in the second disinfection chamber 46, the tube mouths of the transparent spiral tubes 47 and the silver spiral tubes 48 are fixedly connected with corresponding tube grooves 49 on the corresponding partition plates 44 in a sealing manner, and ultraviolet lamps 50 controlled by the monitor 1 are arranged on the inner wall of the first disinfection chamber 45; under the effect of ultraviolet ray and silver ion's dual sterilization, can guarantee that the gas in the gas holder 14 is clean and sanitary to guarantee the cleanness and the health of detection liquid in U type pipe 7, thereby reduce the intracranial infected risk of patient effectively.
The design of the transparent spiral tube 47 and the silver spiral tube 48 can make the sterilizing box 40 smaller without changing the efficacy.
A reflecting layer 51 is uniformly plated on the inner wall of the first disinfection cavity 45; this increases the ultraviolet coverage inside the first sterilization chamber 45, thereby improving the ultraviolet sterilization capability.
In the present embodiment, the wavelength of the ultraviolet light emitted from the ultraviolet lamp 50 is 240-280 nm, and further, the wavelength of the ultraviolet light emitted from the ultraviolet lamp 50 is 253.7nm, because the ultraviolet light with the wavelength has the most sterilization effect.
The novel intracranial pressure monitoring device provided by the embodiment has the following working principle:
in the first step, the processing module 26 monitors the air pressure inside the tube body at the right end of the U-shaped tube 7 and the air pressure outside the tube body in real time through the first air pressure sensor 9 and the second air pressure sensor 13, compares whether the air pressure inside the tube body at the right end of the U-shaped tube 7 and the air pressure outside the tube body are equal, and if the air pressure inside the tube body at the right end of the U-shaped tube 7 and the air pressure outside the tube body are not equal, the processing module 26 controls the air storage tank 14 and the electromagnetic pressure release valve 17 to keep the air pressure inside the tube body at the right end of the U-shaped tube 7 equal to the air pressure outside the tube body.
Secondly, the processing module 26 monitors the intracranial pressure of the patient in real time through the first air pressure sensor 9 at the left end of the U-shaped tube 7 (because the tube body at the left end of the U-shaped tube 7 is communicated with the intracranial of the patient); meanwhile, the processing module 26 monitors the liquid levels of the pipe bodies at the two ends of the U-shaped pipe 7 in real time through the two distance sensors 8, so as to obtain a liquid level difference between the two ends of the U-shaped pipe 7, and thus measure the air pressure inside the pipe body at the left end of the U-shaped pipe 7 (wherein the density of the detection liquid is known, and the air pressure inside the pipe body at the right end of the U-shaped pipe 7 is known (equal to the external air pressure)); the processing module 26 then performs a comprehensive processing (e.g., averaging) on the air pressure measured in the tube body at the right end of the U-shaped tube 7 in two ways to obtain a more accurate value.
It should be noted that when the processing module 26 monitors that the intracranial pressure of the patient is too high or too low in the second step, the processing module 26 will instruct the speaker 23 to issue an alarm, so as to remind the doctor (nurse) to take the treatment before. It should be noted that, in the practical application process of the product of the present invention, the PCB 24 may further be provided with a wireless module, so that when the monitor 1 detects an abnormal intracranial pressure of the patient, the processing module 26 may notify the emergency control center system of the hospital through the wireless module.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.
Claims (10)
1. A novel intracranial pressure monitoring device is characterized in that: comprises a monitor (1), a horizontal component, a detection component and a balance component which are controlled by the monitor;
the horizontal assembly comprises an electric telescopic rod (2), a supporting plate (3) and an electronic gyroscope (4), the electric telescopic rods (2) are arranged at the top corners of the top surface of the monitor (1), the hinge balls (5) are arranged at the tops of the electric telescopic rods (2), the spherical hinge seats (6) matched with the hinge balls (5) are arranged at the top corners of the bottom plate surface of the supporting plate (3), and the electronic gyroscope (4) is arranged on the bottom plate surface of the supporting plate (3);
the detection assembly comprises a U-shaped pipe (7), a distance sensor (8) and a first air pressure sensor (9), the U-shaped pipe (7) is vertically arranged on the supporting plate (3), pipe orifices of the U-shaped pipe (7) are respectively provided with a sealing plug (10), the bottoms of the sealing plugs (10) are respectively provided with the distance sensor (8) and the first air pressure sensor (9), pipe bodies, close to the pipe orifices of the U-shaped pipe (7), of the U-shaped pipe (7) are respectively provided with a connecting pipe (11), and detection liquid is injected into the U-shaped pipe (7);
the balance assembly comprises a mounting seat (12), a second air pressure sensor (13), an air storage tank (14), an air supply pipe (15), a pressure relief pipe (16) and an electromagnetic pressure relief valve (17), the mounting seat (12) is arranged on the supporting plate (3), the second air pressure sensor (13) is arranged on the outer surface of the mounting seat (12), the air storage tank (14) is arranged in an installation groove (18) at the top of the installation seat (12), an air outlet pipe (19) at the top of the mounting seat (12) is hermetically connected with a connecting pipe (11) on the pipe body at the right end of the U-shaped pipe (7) through an air supplementing pipe (15), the pressure relief pipe (16) is arranged on the pipe body at the right end of the U-shaped pipe (7), the electromagnetic pressure relief valve (17) is arranged on the pressure relief pipe (16), and the pipe orifice of the air outlet pipe (19) in the mounting seat (12) is hermetically connected with the output end of the air storage tank (14).
2. The novel intracranial pressure monitoring device as recited in claim 1, wherein the monitor (1) has a display screen (20), a button module (21), an interface module (22) and a speaker (23) on its outer wall, a PCB (24) and a power module (25) are disposed in a cavity inside the monitor, and a processing module (26) and a storage module (27) are disposed on the PCB (24).
3. The intracranial pressure monitoring device as recited in claim 2, wherein the monitor (1) has flexible anti-slip pads (28) at the top corners of the bottom, and negative pressure grooves (29) are uniformly distributed on the bottom surface of the anti-slip pads (28).
4. The intracranial pressure monitoring device as recited in claim 1, wherein the outer wall of the middle tube body of the U-shaped tube (7) is fixed with a positioning table (30) in a sleeved manner, the bottom of the positioning table (30) is fixed with an insertion block (31), and a plate body at the top of the support plate (3) is provided with an insertion groove (32) matched with the insertion block (31); the liquid level detection device is characterized in that floats (33) floating on the liquid level of detection liquid are arranged in the pipe bodies at the two ends of the U-shaped pipe (7), limiting rings (34) matched with the floats (33) are arranged inside the pipe bodies at the two ends of the U-shaped pipe (7), and the two limiting rings (34) are the same in height in the vertical direction and are located above the floats (33).
5. The intracranial pressure monitoring device as recited in claim 4, wherein the inside of the plug block (31) and the inside of the support plate (3) at the bottom wall of the plug groove (32) are provided with attracting magnets (35); scale marks are arranged on the pipe bodies at the two ends of the U-shaped block, and the U-shaped pipe (7) is made of a hard transparent material which meets the medical standard; the upper end surface of the floater (33) is uniformly plated with a mirror layer (36).
6. The intracranial pressure monitoring device as recited in claim 1, wherein a three-way pipe is sealingly connected to the outer end of the connecting pipe (11) on the left end of the U-shaped pipe (7), and the other two pipes of the three-way pipe are respectively provided with an electromagnetic discharge valve (37) and a drainage pipe (38).
7. The new intracranial pressure monitoring device as recited in claim 1, wherein the distance sensor (8) is a laser-type sensor, and the working principle of the distance sensor (8) is any one of a phase method and a laser triangulation method.
8. The intracranial pressure monitoring device as recited in claim 1, wherein the support plate (3) is further provided with a purification assembly connected to an input end of the gas storage tank (14), the purification assembly comprises a dust removal box (39), a disinfection box (40) and an air pump (41), and an output end of the dust removal box (39), an input end of the disinfection box (40), an output end of the disinfection box (40), an input end of the air pump (41), an output end of the air pump (41) and an input end of the gas storage tank (14) are sequentially communicated through an air duct (42); and the air storage tank (14) is also provided with an air pressure switch (43) controlled by the monitor (1).
9. Novel intracranial pressure monitoring device as claimed in claim 8, wherein the disinfection box (40) is provided symmetrically inside with four baffles (44), the space between the two baffles (44) closest to one end of the disinfection box (40) is a first disinfection chamber (45), the space between the two baffles (44) closest to the other end of the disinfection box (40) is a second disinfection chamber (46), a group of transparent spiral tubes (47) are arranged in the first disinfection cavity (45), a group of silver spiral tubes (48) are arranged in the second disinfection cavity (46), the pipe orifices of the transparent spiral pipe (47) and the silver spiral pipe (48) are fixedly connected with the corresponding pipe grooves (49) on the corresponding partition boards (44) in a sealing way, an ultraviolet lamp (50) controlled by the monitor (1) is arranged on the inner wall of the first disinfection cavity (45).
10. Novel intracranial pressure monitoring device as claimed in claim 9, wherein the inner wall of the first disinfection chamber (45) is uniformly coated with a reflective layer (51).
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| CN202110495269.1A CN113288104B (en) | 2021-05-07 | 2021-05-07 | Novel intracranial pressure monitoring device |
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| CN202110495269.1A CN113288104B (en) | 2021-05-07 | 2021-05-07 | Novel intracranial pressure monitoring device |
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| US4172449A (en) * | 1978-05-01 | 1979-10-30 | New Research And Development Laboratories, Inc. | Body fluid pressure monitor |
| US4621647A (en) * | 1982-08-10 | 1986-11-11 | Medex, Inc. | Intracranial pressure regulating system |
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| US20160051801A1 (en) * | 2014-08-19 | 2016-02-25 | Minnetronix, Inc. | Devices and Systems for Access and Navigation of Cerebrospinal Fluid Space |
| CN207168490U (en) * | 2017-12-15 | 2018-04-03 | 刘长纲 | A kind of novel and multifunctional pressure-measuring pipe |
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| US4003141A (en) * | 1975-04-01 | 1977-01-18 | New Research And Development Lab., Inc. | Intracranial pressure monitoring device |
| FR2384482A1 (en) * | 1977-03-25 | 1978-10-20 | Anvar | Sensor for monitoring intracranial pressure - has gas capsule with membrane contacting skull outer membrane to control pressure transducer |
| US4172449A (en) * | 1978-05-01 | 1979-10-30 | New Research And Development Laboratories, Inc. | Body fluid pressure monitor |
| US4621647A (en) * | 1982-08-10 | 1986-11-11 | Medex, Inc. | Intracranial pressure regulating system |
| US20160051801A1 (en) * | 2014-08-19 | 2016-02-25 | Minnetronix, Inc. | Devices and Systems for Access and Navigation of Cerebrospinal Fluid Space |
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| CN113288104B (en) | 2023-06-23 |
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