CN109567751A - A kind of puncture needle and its application method for measurement cirrhosis hardness in art - Google Patents
A kind of puncture needle and its application method for measurement cirrhosis hardness in art Download PDFInfo
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- CN109567751A CN109567751A CN201811357204.5A CN201811357204A CN109567751A CN 109567751 A CN109567751 A CN 109567751A CN 201811357204 A CN201811357204 A CN 201811357204A CN 109567751 A CN109567751 A CN 109567751A
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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
- A61B5/0048—Detecting, measuring or recording by applying mechanical forces or stimuli
- A61B5/0053—Detecting, measuring or recording by applying mechanical forces or stimuli by applying pressure, e.g. compression, indentation, palpation, grasping, gauging
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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
- A61B5/0048—Detecting, measuring or recording by applying mechanical forces or stimuli
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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
- A61B5/42—Detecting, measuring or recording for evaluating the gastrointestinal, the endocrine or the exocrine systems
- A61B5/4222—Evaluating particular parts, e.g. particular organs
- A61B5/4244—Evaluating particular parts, e.g. particular organs liver
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Abstract
The invention discloses a kind of for measuring the puncture needle and its application method of cirrhosis hardness in art, including main syringe, puncturing lever, time regulator, pressure sensor, display, puncture starting/termination switch, air infusion pump, micro computer, graduated scale is provided with above the main syringe, sealing-plug is provided in the main syringe, the sealing-plug side is provided with the puncture starting/termination switch, the puncturing lever is provided with above the sealing-plug, the sealing-plug is provided with pressure chamber far from the puncture starting/termination switch side.Beneficial effect is: the present invention acquires pressure using pressure sensor, and pump work is transfused with micro computer control air, guarantee stable puncture force, the measurement that a variety of methods carry out liver hardness is provided simultaneously, it is convenient for multiple authentication, the reliability of measurement is increased, and carries out the precise marking of liver hardness using numerical value, ensure that the accuracy of measurement liver hardness.
Description
Technical field
The present invention relates to medical instruments field, the puncture needle that the present invention relates to a kind of for measuring cirrhosis hardness in art and
Its application method.
Background technique
Cirrhosis is clinical common chronic progressive hepatopathy, by one or more causes of disease are long-term or repeated action formed
Diffusivity hepatic lesion.It is posthepatitic cirrhosis in most of China, small part is alcoholic cirrhosis and Cirrhosis In Schistosomiasis.
There are extensive necrosis of liver cells, regeneration of remaining liver cell nodules, connective tissue proliferation and fiber in Histopathology every formation,
Cause lobuli hepatis structure to be destroyed to be formed with pseudolobuli, liver gradually deforms, is hardened and develops as cirrhosis.
Comparison application No. is 98209744.1 Chinese patent, disclose it is a kind of by syringe, emulsion tube, adapter glass,
The Quick liver puncture needle that the components such as syringe needle are constituted.Syringe is connected with emulsion tube, and emulsion tube is connected with adapter glass, adapter glass
It is connected with syringe needle, it is characterized in that being equipped with locator on syringe needle, locator is enclosed on syringe needle, and locator is equipped with screw hole, spiral shell
Hole is equipped with screw.
Above-mentioned patent can only carry out the judgement of liver hardness according to the feel of operator, and accuracy and accuracy are all relatively low.
Therefore a kind of new equipment is designed, the present invention acquires pressure using pressure sensor, and with micro computer control air infusion pump
Work, guarantees stable puncture force, while providing the measurement that a variety of methods carry out liver hardness, is convenient for multiple authentication, increases
The reliability of measurement, and it is hard using a variety of numerical value progress livers such as speed, penetration Resistance, crush resistance and response curve are punctured
The precise marking of degree ensure that the accuracy of measurement liver hardness.
Summary of the invention
The object of the invention is that provide a kind of for measuring cirrhosis hardness in art to solve the above-mentioned problems
Puncture needle and its application method, the present invention improve the accuracy of liver and gall surgical department, hospital measurement liver hardness.
The present invention through the following technical solutions to achieve the above objectives:
A kind of puncture needle for measurement cirrhosis hardness in art, including main syringe, puncturing lever, time regulator, pressure
Sensor, display puncture starting/termination switch, air infusion pump, micro computer, are provided with graduated scale above the main syringe,
Sealing-plug is provided in the main syringe, there are cyclic annular protuberance, the main needle in graduated scale starting point described in the main syringe inner wall
Cylinder side is provided with the puncture starting/termination switch and paracentesis depth sensor, and described wear is provided with above the sealing-plug
Thorn stick, the sealing-plug are provided with pressure chamber far from the puncture starting/termination switch side, and the pressure chamber end side is provided with
Connecting tube and the pressure sensor, the pressure sensor model are SCB-3P type, and the main syringe side is provided with exhaust
Hole and the puncture starting/termination switch, the main syringe are provided with air infusion tube and pressure far from the gas vent side
Chamber air discharge cook is provided with puncture needle cap outside the puncturing lever, fixing groove, the main syringe is provided in the puncture needle cap
Outside is provided with the micro computer, the display is provided with above the micro computer, when being provided with described in the micro computer
Between logger, the micro computer side is provided with the air infusion pump.
In the present embodiment, the main syringe is cylindrical, and the main syringe is made of transparent material, the graduated scale,
The cyclic annular protuberance and the main syringe are integrally formed.
So set, the cylindrical harmony that ensure that force, transparent material ensure that the sight inside the main syringe
It examines, integrated molding ensure that the graduated scale is wear-resisting durable.
In the present embodiment, the sealing-plug and the main syringe use are slidably connected, and the puncturing lever is welded on described close
On blocking, the length of the puncturing lever is greater than the length of the main syringe.
It ensure that the movement of the sealing-plug so set, being slidably connected, welding keeps the puncturing lever solid and reliable, described
The length of puncturing lever is greater than the length of the main syringe, ensure that the depth of puncture.
In the present embodiment, the pressure sensor is connect by the connecting tube with the main syringe, the pressure sensing
Device is electrically connected with the display, the air infusion tube, the connecting tube, the pressure chamber air discharge cook and gas vent difference
Across the main syringe.
So set, connecting tube connection ensure that the pressure sensor is solid and reliable, the air infusion tube and
The gas vent is each passed through the main syringe, ensure that the air intake-exhaust of the main syringe.
It is described to puncture the needle cap circle flat in width, the fixing groove and the puncturing lever plug in the present embodiment
Connection.
So set, the flat circle of width prevents the puncture needle cap excessively deep, plug connection is easy to disassemble described
Puncture needle cap.
In the present embodiment, the display is snapped connection with the micro computer use, the time regulator and described micro-
Computer use is bolted.
So set, snapping connection the maintenance display easy to disassemble, it is bolted the replacement time easy to disassemble
Logger.
In the present embodiment, the air infusion pump and the micro computer use are bolted, the air infusion tube and institute
It states air infusion pump and uses clamp connection.
So set, being bolted the maintenance air infusion pump easy to disassemble, clamp connection prevents the air defeated
Infuse pipe leakage.
In the present embodiment, the puncture starting/termination switch and the paracentesis depth sensor are together in the main syringe
One end is inserted in the puncturing lever and is fixed on the main syringe, and the zero point of the graduated scale and the sealing-plug start position are flat
Together.
So set, ensure that initial time record, the accuracy for puncturing time record.
In the present embodiment, the micro computer respectively with the display, the time regulator, the air infusion pump,
The puncture starting/termination switch, the paracentesis depth sensor and pressure sensor uses electrical connection.
So set, electrical connection ensure that the transmission of control signal.
In the present embodiment, specific application method including the following steps:
When only using puncturing lever measurement,
A, so that the sealing-plug is returned to the graduated scale starting point, close the pressure chamber air discharge cook, the fixed main needle
The relative position of cylinder and liver, makes puncture needle needle point just contact liver surface.
B, the standard in the pressure chamber is set by the micro computer and punctures pressure.
C, the real time pressure information in the collected pressure chamber is passed to the micro computer by the pressure sensor,
The micro computer according to real time pressure information in received pressure chamber to control the air infusion pump defeated by the air
Note pipe conveys air into the pressure chamber, is less than air infusion when set standard punctures pressure in real-time pressure, to mention
High pressure cavity space atmospheric pressure reaches when set standard punctures pressure in real-time pressure and is automatically stopped air infusion, to maintain
Stable pressure chamber air pressure.
D, after reaching setting pressure, the puncture starting/termination switch is opened, the sealing-plug pushes the puncturing lever to wear
Liver is pierced, the paracentesis depth set on the graduated scale stops puncturing after reaching by the starting/termination switch 13.
E, the temporal information of record is passed to the micro computer by the time regulator, and the paracentesis depth sensor will
Paracentesis depth data pass to micro computer, and the micro computer calculates standard according to pressure, puncture time and paracentesis depth is punctured
The puncture speed under pressure is punctured, numerical value means that degree of cirrhosis, and the micro computer is worn different paracentesis depths
Lunge needle speed and be depicted as depth rate curve, can more acurrate reflection degree of cirrhosis, result above data and curve are shown
On the display.
F, after the completion of puncturing velocity determination above, the not withdraw of the needle or separately inserting needle to certain depth open the pressure chamber row
Air cock makes the pressure chamber decrease in air pressure to normal atmosphere (An), the sealing-plug is retracted to the graduated scale starting point.
G, it is again switched off the pressure chamber air discharge cook, the puncture starting/termination switch is opened, it is defeated to start the air
Note pump, rises the pressure chamber air pressure constantly slowly, starts continuation inserting needle moment, micro- electricity into liver in puncture needle
Brain records the pressure cavity pressure by the pressure sensor, this pressure reacts liver puncture resistance, also reflects puncture needle institute
Liver hardness degree in position.
H, by repeating above method, the penetration Resistance of different paracentesis depths is measured.
I, it records the penetration Resistance of different paracentesis depths by the micro computer, draws depth resistance curve, and by result
Display is on the display.
When being measured using the puncture needle cap,
A, the puncturing lever is inserted into the fixing groove for puncturing needle cap, the pressure is set by the micro computer
The intracavitary pressure of power.
B, the fixed main syringe and the puncture needle cap position, make the puncture needle cap just contact liver surface.
C, the pressure in the collected pressure chamber is passed to the micro computer, micro- electricity by the pressure sensor
Brain control air infusion pump discharge pressure into the pressure chamber by the air infusion tube.
D, after reaching setting pressure, the puncture starting/termination switch is opened, the sealing-plug is pushed away by the puncturing lever
It moves the puncture needle cap extruding liver and acquires the sealing-plug in the graduated scale after the puncturing lever voluntarily halts
On depth.
E, the pressure chamber final pressure is worn the depth transducer self registering quarter divided by described by the micro computer
The depth on ruler is spent, resulting numerical value means that the crush resistance of liver, reflects degree of cirrhosis with it.
F, the display shows result above data.
Compared with prior art, beneficial effects of the present invention are as follows:
1, pressure is acquired using pressure sensor, and is transfused pump work with micro computer control air, guarantee stable puncture
Power；
2, the measurement that a variety of methods carry out liver hardness is provided, multiple authentication is convenient for, increases the reliability of measurement；
3, the precise marking that liver hardness is carried out using a variety of numerical curves ensure that the accuracy of measurement liver hardness.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this hair
Bright some embodiments for those of ordinary skill in the art without any creative labor, can be with
It obtains other drawings based on these drawings.
Fig. 1 is of the present invention a kind of for measuring the structural schematic diagram of the puncture needle of cirrhosis hardness in art；
Fig. 2 is of the present invention a kind of for measuring the main syringe schematic diagram of the puncture needle of cirrhosis hardness in art；
Fig. 3 is of the present invention a kind of for measuring the puncture needle cap schematic diagram of the puncture needle of cirrhosis hardness in art；
Fig. 4 is of the present invention a kind of for measuring the micro computer schematic diagram of the puncture needle of cirrhosis hardness in art；
Fig. 5 is of the present invention a kind of for measuring the circuit structure flow diagram of the puncture needle of cirrhosis hardness in art.
The reference numerals are as follows:
1, puncturing lever；2, main syringe；3, sealing-plug；4, graduated scale；5, pressure sensor；6, pressure chamber；7, air is transfused
Pipe；8, air infusion pump；9, micro computer；10, display；11, needle cap is punctured；12, gas vent；13, starting/termination is punctured to open
It closes；14, fixing groove；15, time regulator；16, ring uplift；17 pressure chamber air discharge cooks；18, paracentesis depth sensor；19,
Connecting tube.
Specific embodiment
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply phase
To importance or implicitly indicate the quantity of indicated technical characteristic.The feature for defining " first ", " second " etc. as a result, can
To explicitly or implicitly include one or more of the features.In the description of the present invention, unless otherwise indicated, " multiple "
It is meant that two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
The present invention will be further explained below with reference to the attached drawings:
Embodiment 1
As Figure 1-Figure 5, it is a kind of in art measure cirrhosis hardness puncture needle, including main syringe 2, puncturing lever 1,
Time regulator 15, display 10, punctures starting/termination switch 13, air infusion pump 8, micro computer 9 at pressure sensor 5, main
Syringe 2 is provided with graduated scale 4 above, convenient for checking depth, is provided with sealing-plug 3 in main syringe 2, prevents gas leakage, in main syringe 2
There is cyclic annular protuberance 16 in 4 starting point of wall graduated scale, and convenient for making sealing-plug 3 and graduated scale 4 originate point alignment, main 2 side of syringe is set
It is equipped with puncture starting/termination switch 13 and paracentesis depth sensor 18, puncturing the effect of starting/termination switch 13 is to start to puncture
With terminate the switch for puncturing record, paracentesis depth information is passed to micro computer 9 by paracentesis depth sensor 18, above sealing-plug 3
It is provided with puncturing lever 1, transmits puncture force, sealing-plug 3 is provided with pressure chamber 6 far from starting/13 side of termination switch is punctured, and stores
Air pressure, 6 end side of pressure chamber are provided with connecting tube 19 and pressure sensor 5, acquire pressure information, main 2 side of syringe setting
There is gas vent 12 and puncture starting/termination switch 13, the front end air of main syringe 2 is discharged, main syringe 2 is far from 12 side of gas vent
It is provided with air infusion tube 7 and pressure chamber air discharge cook 17, the effect of air infusion tube 7 is conveying air pressure, pressure chamber row
The effect of air cock 17 is to make 6 pressure recovery of pressure chamber to normal atmosphere (An) after the completion of a detection, is arranged outside puncturing lever 1
Have and puncture needle cap 11, cover on puncturing lever 1, punctures in needle cap 11 and be provided with fixing groove 14, be conveniently fixed on puncturing lever 1, it is main
It is provided with micro computer 9 outside syringe 2, carries out whole control, micro computer 9 is provided with display 10 above, shows every measurement number
Value and curve are provided with time regulator 15 in micro computer 9, record the time, 9 side of micro computer is provided with air infusion pump 8, mentions
For pressure.
Embodiment 2
The present embodiment the difference from embodiment 1 is that:
Main syringe 2 is cylindrical, and main syringe 2 is made of transparent material, graduated scale 4, cyclic annular protuberance 16 and main syringe 2 one
Body formed, cylinder ensure that the harmony of force, and transparent material ensure that the observation inside main syringe 2, is integrally formed and protects
It is wear-resisting durable graduated scale 4 has been demonstrate,proved.
In the present embodiment, specific application method including the following steps:
When only using the measurement of puncturing lever 1,
A, so that sealing-plug 3 is returned to 4 starting point of graduated scale, close pressure chamber air discharge cook 17, the phase of fixed main syringe 2 and liver
To position, puncture needle needle point is made just to contact liver surface.
B, the standard in pressure chamber 6 is set by micro computer 9 and punctures pressure.
C, the real time pressure information in collected pressure chamber 6 is passed to micro computer 9 by pressure sensor 5, and micro computer 9
According to real time pressure information control air infusion pump 8 in received pressure chamber 6 it is defeated into pressure chamber 6 by air infusion tube 7
Air is sent, is less than air infusion when set standard punctures pressure in real-time pressure, to improve pressure chamber air pressure, in reality
When pressure reach when set standard punctures pressure and be automatically stopped air infusion, to maintain stable pressure chamber air pressure.
D, it after reaching setting pressure, opens and punctures starting/termination switch 13, sealing-plug 3 pushes puncturing lever 1 to puncture liver,
The paracentesis depth set on graduated scale 4 passes through starting/termination switch 13 after reaching and is automatically stopped puncture.
E, the temporal information of record is passed to micro computer 9,18 automatic collection of paracentesis depth sensor by time regulator 15
Paracentesis depth numerical value, and it is transferred to micro computer 9, micro computer 9 calculates standard according to pressure, puncture time and paracentesis depth is punctured
Puncture the puncture speed under pressure, numerical value means that degree of cirrhosis, micro computer 9 by the puncture of different paracentesis depths into
Needle speed is depicted as depth rate curve, can more acurrate reflection degree of cirrhosis, result above data and curve are shown in aobvious
Show on device 10.
F, after the completion of puncturing velocity determination above, the not withdraw of the needle or separately inserting needle to certain depth are opened pressure chamber exhaust and are opened
17 are closed, makes 6 decrease in air pressure of pressure chamber to normal atmosphere (An), sealing-plug 3 is retracted to 4 starting point of graduated scale.
G, it is again switched off pressure chamber air discharge cook 17, opens starting/termination switch 13, starts air infusion pump 8, makes pressure
6 air pressure of chamber constantly slowly rises, and starts the continuation inserting needle moment into liver in puncture needle, micro computer 9 passes through pressure sensor 5
6 pressure of pressure chamber is recorded, this pressure reacts liver puncture resistance, also reflects the liver hardness degree of puncture needle position.
H, by repeating above method, the penetration Resistance of different paracentesis depths is measured.
I, the penetration Resistance of different paracentesis depths is recorded by micro computer 9, draws depth resistance curve, and will as the result is shown
On display 10.
When using the measurement of needle cap 11 is punctured,
A, puncturing lever 1 is inserted into the fixing groove 14 for puncturing needle cap 11, the pressure in pressure chamber 6 is set by micro computer 9.
B, fixed main syringe 2 and puncture 11 position of needle cap, make puncture needle cap 11 just contact liver surface.
C, the pressure in collected pressure chamber 6 is passed to micro computer 9 by pressure sensor 5, and it is defeated that micro computer 9 controls air
Note pump 8 passes through the discharge pressure into pressure chamber 6 of air infusion tube 7.
D, it after reaching setting pressure, opens and punctures starting/termination switch 13, sealing-plug 3 pushes puncture needle by puncturing lever 1
Cap 11 squeezes liver, and after puncturing lever 1 voluntarily halts, 18 automatic collection sealing-plug 3 of paracentesis depth sensor is in graduated scale 4
On depth.
E, for micro computer 9 by 6 final pressure of pressure chamber divided by the depth on graduated scale 4, resulting numerical value means that cirrhosis
Degree.
F, display 10 shows result above data.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, and the above embodiments and description only describe originals of the invention
Reason, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements
It all fall within the protetion scope of the claimed invention.
Claims (10)
1. it is a kind of in art measure cirrhosis hardness puncture needle, it is characterised in that: including main syringe (2), puncturing lever (1),
Time regulator (15), pressure sensor (5), display (10), puncture starting/termination switch (13), air infusion pump (8),
Micro computer (9), the main syringe (2) are provided with graduated scale (4) above, are provided with sealing-plug (3), institute in the main syringe (2)
Stating graduated scale (4) starting point described in main syringe (2) inner wall has cyclic annular protuberance (16), and main syringe (2) the side setting is
Puncture starting/termination switch (13) and paracentesis depth sensor (18) are stated, the sealing-plug (3) is provided with the puncturing lever above
(1), the sealing-plug (3) is provided with pressure chamber (6), the pressure chamber far from the puncture starting/termination switch (13) side
(6) end side is provided with connecting tube (19) and the pressure sensor (5), and main syringe (2) side is provided with gas vent (12)
With the puncture starting/termination switch (13), the main syringe (2) is provided with air infusion far from the gas vent (12) side
(7) and pressure chamber air discharge cook (17) are managed, is provided with outside the puncturing lever (1) and punctures needle cap (11), the puncture needle cap
(11) it is provided with fixing groove (14), is provided with the micro computer (9) outside the main syringe (2), the micro computer (9) is above in
It is provided with the display (10), is provided with the time regulator (15) in the micro computer (9), the micro computer (9) one
Side is provided with the air infusion pump (8).
2. according to claim 1 a kind of for measuring the puncture needle of cirrhosis hardness in art, it is characterised in that: the master
Syringe (2) is cylindrical, and the main syringe (2) is made of transparent material, the graduated scale (4), the cyclic annular protuberance (16)
It is integrally formed with the main syringe (2).
3. according to claim 2 a kind of for measuring the puncture needle of cirrhosis hardness in art, it is characterised in that: described close
Blocking (3) and the main syringe (2) use are slidably connected, and the puncturing lever (1) is welded on the sealing-plug (3), described to wear
The length of thorn stick (1) is greater than the length of the main syringe (2).
4. according to claim 3 a kind of for measuring the puncture needle of cirrhosis hardness in art, it is characterised in that: the pressure
Force snesor (5) is connect by the connecting tube (19) with the main syringe (2), the pressure sensor (5) and the display
Device (10) electrical connection, the air infusion tube (7), the pressure chamber air discharge cook (17), the connecting tube (19), the exhaust
Hole (12) is each passed through the main syringe (2).
5. according to claim 4 a kind of for measuring the puncture needle of cirrhosis hardness in art, it is characterised in that: described to wear
Pricker cap (11) circle flat in width, the fixing groove (14) connect with the puncturing lever (1) plug.
6. according to claim 5 a kind of for measuring the puncture needle of cirrhosis hardness in art, it is characterised in that: described aobvious
Show that device (10) is snapped connection with the micro computer (9) use, the time regulator (15) and the micro computer (9) use bolt
Connection.
7. according to claim 6 a kind of for measuring the puncture needle of cirrhosis hardness in art, it is characterised in that: the sky
Gas infusion pump (8) and the micro computer (9) use are bolted, and the air infusion tube (7) and the air infusion pump (8) make
Use clamp connection.
8. according to claim 7 a kind of for measuring the puncture needle of cirrhosis hardness in art, it is characterised in that: described to wear
Thorn starting/termination switch (13) and the paracentesis depth sensor (18) are inserted in described wear in described main syringe (2) one end together
Thorn stick (1) is simultaneously fixed on the main syringe (2), and the zero point of the graduated scale (4) is concordant with the sealing-plug (3) start position.
9. according to claim 8 a kind of for measuring the puncture needle of cirrhosis hardness in art, it is characterised in that: described micro-
Computer (9) respectively with the display (10), the time regulator (15), the air infusion pump (8), described puncture
Beginning/termination switch (13), the paracentesis depth sensor (18) and pressure sensor (5) uses electrical connection.
10. a kind of for measuring the application method of the puncture needle of cirrhosis hardness in art, it is characterised in that: specific application method
Including the following steps:
When only using the puncturing lever (1) measurement,
A, so that the sealing-plug (3) is returned to the graduated scale (4) starting point, close the pressure chamber air discharge cook (17), fixed institute
The relative position for stating main syringe (2) and liver makes puncture needle needle point just contact liver surface.
B, the standard in the pressure chamber (6) is set by the micro computer (9) puncture pressure.
C, the real time pressure information in the collected pressure chamber (6) is passed to micro- electricity by the pressure sensor (5)
Brain (9), the micro computer (9) according to real time pressure information in the received pressure chamber 6 control the air infusion pump
(8) by conveying air in air infusion tube (7) the Xiang Suoshu pressure chamber (6), it is less than set standard in real-time pressure
Air infusion when puncturing pressure, to improve pressure chamber air pressure, when real-time pressure reaches set standard and punctures pressure
It is automatically stopped air infusion, to maintain stable pressure chamber air pressure.
D, after reaching setting pressure, the puncture starting/termination switch (13) is opened, the sealing-plug (3) pushes the puncture
Bar (1) punctures liver, by the starting/termination switch (13) after the paracentesis depth arrival set on the graduated scale (4)
It is automatically stopped puncture.
E, the time regulator (15) passes to the temporal information of record the micro computer (9), the paracentesis depth sensing
Device (18) passes to paracentesis depth data the micro computer (9), the micro computer (9) according to puncture pressure, puncture the time and
Paracentesis depth calculates the puncture speed under standard puncture pressure, and numerical value means that degree of cirrhosis, the micro computer
(9) puncture speed of different paracentesis depths is depicted as depth rate curve, can more acurrate reflection degree of cirrhosis, it is above
Result data and curve are shown on the display (10).
F, after the completion of puncturing velocity determination above, the not withdraw of the needle or separately inserting needle to certain depth are opened the pressure chamber exhaust and are opened
It closes (17), makes the pressure chamber (6) decrease in air pressure to normal atmosphere (An), the sealing-plug (3) are retracted to graduated scale (4)
Starting point.
G, it is again switched off the pressure chamber air discharge cook (17), the puncture starting/termination switch is opened, it is defeated to start the air
Note pump (8), rises the pressure chamber (6) air pressure constantly slowly, starts continuation inserting needle moment, institute into liver in puncture needle
It states micro computer (9) and the pressure chamber (6) pressure is recorded by the pressure sensor (5), this pressure reacts liver puncture resistance,
Also reflect the liver hardness degree of puncture needle position.
H, by repeating above method, the penetration Resistance of different paracentesis depths is measured.
I, the penetration Resistance of different paracentesis depths is recorded by the micro computer (9), draws depth resistance curve, and result is shown
Show on the display (10).
When being measured using the puncture needle cap (11),
A, by the puncturing lever (1) insertion fixing groove (14) for puncturing needle cap (11), pass through the micro computer (9)
Set the pressure in the pressure chamber (6).
B, the fixed main syringe (2) and puncture needle cap (11) position, make the puncture needle cap (11) just contact liver
Surface.
C, the pressure in the collected pressure chamber (6) is passed to the micro computer (9), institute by the pressure sensor (5)
It states micro computer (9) control air infusion pump (8) and passes through the interior delivery pressure of the air infusion tube (7) Xiang Suoshu pressure chamber (6)
Power.
D, after reaching setting pressure, the puncture starting/termination switch (13) is opened, the sealing-plug (3) passes through the puncture
Bar (1) pushes the puncture needle cap (11) to squeeze liver, after the puncturing lever (1) voluntarily halts, the paracentesis depth
Depth of the sealing-plug (3) on the graduated scale (4) described in sensor (18) automatic collection.
E, the micro computer (9) is by the pressure chamber (6) final pressure divided by the depth on the graduated scale (4), resulting number
Value means that the crush resistance of liver, reflects degree of cirrhosis with it.
F, the display (10) shows result above data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811357204.5A CN109567751B (en) | 2018-11-15 | 2018-11-15 | Puncture needle for measuring cirrhosis hardness in operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811357204.5A CN109567751B (en) | 2018-11-15 | 2018-11-15 | Puncture needle for measuring cirrhosis hardness in operation |
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| CN112120737A (en) * | 2019-08-07 | 2020-12-25 | 杭州睿笛生物科技有限公司 | Electric pulse ablation equipment |
| CN113244519A (en) * | 2021-07-06 | 2021-08-13 | 真实维度科技控股(珠海)有限公司 | Needle holding and inserting puncture device |
| CN113456049A (en) * | 2021-06-23 | 2021-10-01 | 上海交通大学 | Liver cirrhosis detection system |
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