CN109259753A - Internal pressure conduction device and its manufacturing method - Google Patents
Internal pressure conduction device and its manufacturing method Download PDFInfo
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- CN109259753A CN109259753A CN201811163323.7A CN201811163323A CN109259753A CN 109259753 A CN109259753 A CN 109259753A CN 201811163323 A CN201811163323 A CN 201811163323A CN 109259753 A CN109259753 A CN 109259753A
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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
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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
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
- A61B5/6867—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive specially adapted to be attached or implanted in a specific body part
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Abstract
The present invention discloses a kind of internal pressure conduction device and its manufacturing method, the pressure conduction device includes hard sealing container and the quick sense film of power, the quick sense film of power is arranged in hard sealing container, and hard sealing container is divided into an internal liquid-retaining volume and a measuring medium accommodation space；It is provided with the flow of media interface being connected to the measuring medium accommodation space in hard sealing container, the internal liquid flow incoming interface and internal liquid flow outgoing interface being connected to the internal liquid-retaining volume are provided in hard sealing container.Advantageous effect of the invention is to use the quick sense film of the power such as easy utricule as load cell；In measurement process the null offset brought by time change and temperature change can be eliminated with automatic zero set；It can drainage treatment while monitoring pressure；It is simple to operate reliable.
Description
Technical field
The invention belongs to the field of medical instrument technology, in particular to a kind of internal pressure conduction device and its manufacturing method.
Background technique
The intracorporal blood of life, tissue and body fluid etc. have certain pressure, such as blood pressure, intracranial pressure, intraspinal tube pressure, wing
Guang pressure, uterine pressure etc..Internal pressure monitoring is divided into noninvasive and invasive two ways.Invasive mode also known as directly measures
Method is to obtain pressure signal using pressure sensor by establishing direct channel with measuring point.Invasive mode is more quasi- because of it
Really reliably clinically generally regarded as being goldstandard.
In the direct method of measurement, fibre optical sensor can be divided into according to the characteristic of used sensor and piezoresistive bridge senses
Device.Fibre optical sensor, although measurement is accurate, it manufactures complexity, expensive, inconvenient for use, while monitoring pressure
The treatment function such as drainage, perfusion cannot be taken into account.Clinically mainly use piezoresistive bridge sensor at present, and because of spatial volume and
Cost is limited, and the material of piezoresistive bridge sensor is nearly all semiconductor material.
The problem that the piezoresistive bridge sensor of semiconductor material has a maximum is exactly, because of working time and variation of ambient temperature
And there is obviously null offset.In addition, constituting other electronic components of entire circuit, there is also because of working time and environment
Temperature change and have obviously null offset (offset voltage).
Because there are biggish null offsets, zeroing operation is required before every use, for a long time monitoring measurement
Operation of periodically or non-periodically returning to zero also is needed in the process.No matter monitoring device how advanced intelligent, zeroing operation must in advance by
Measured pressure loading disconnection uninstalls just can be with.This causes big inconvenience to actual use, in certain in-vivo measurements
Becoming can not.
Summary of the invention
The object of the present invention is to provide a kind of internal pressure conduction device, by outside internal liquid lead body hard seal
In container, use the quick sense film of easy power as pressure conduction element in hard sealing container, by hard sealing container inner body
Then the pressure conduction of interior liquid carries out survey pressure to measuring medium to measuring medium；Measuring medium can be held in measurement process
It receives the pressure automatic zero set in space, eliminates the null offset brought by time change and temperature change.In addition, by after drain valve
Fluid collection pouch in connector realizes while pressure monitoring also for progress drainage treatment.The purpose of the present invention by with
Lower technical solution is realized:
A kind of internal pressure conduction device, which is characterized in that including hard sealing container and the quick sense film of power, power is sensitive
It answers film to be arranged in hard sealing container, hard sealing container is divided into an internal liquid-retaining volume and a measurement is situated between
Matter accommodation space；The flow of media interface being connected to the measuring medium accommodation space, hard are provided in hard sealing container
It is provided with the internal liquid flow incoming interface being connected to the internal liquid-retaining volume in sealing container and the outflow of internal liquid connects
Mouthful.
As a specific technical scheme, the measuring medium is liquid or gas.
As a specific technical scheme, the quick sense film of the power is a utricule, and the utricule inner cavity is measurement Jie
Matter accommodation space.
As a specific technical scheme, the quick sense film of the power is that surrounding and the rigid closed container side wall inner wall seal
The diaphragm of connection is separated out the measuring medium accommodation space inside the rigid closed container.
As a specific technical scheme, the utricule includes capsule ontology and medium pipeline, and the capsule ontology is set to hard
Sealed container interior, one end of medium pipeline are set on capsule ontology and are connected to capsule chamber body, the other end and the medium
The sealing joint that circulates connects.
As a specific technical scheme, the pressure conduction device further includes supporting element, and the capsule ontology passes through the support
Part is fixedly installed in the hard sealing container.
As a specific technical scheme, the capsule body interior is passed through in the middle part of the supporting element, capsule ontology is stretched out simultaneously in one end
It is tightly connected with capsule ontology, the one end for stretching out capsule ontology forms a fixing end, and the fixing end is supported in hard sealing container
On, the other end penetrates the medium pipeline and is supported in hard sealing container, the other end and medium pipeline of the supporting element
The cooperation of inner wall non-tight.
As a specific technical scheme, the internal liquid flow incoming interface is set to one end of the hard sealing container,
The flow of media interface and internal liquid flow outgoing interface are set to the other end of the hard sealing container.
As a specific technical scheme, the hard sealing container includes hard cavity and chamber end cap, hard cavity one
The internal liquid flow incoming interface is arranged in end, and the other end offers installation opening, and the chamber end cap is hermetically assemblied in the dress
With mouth, the flow of media interface and internal liquid flow outgoing interface are set on the chamber end cap.
As a specific technical scheme, the pressure conduction device further includes container fixed mechanism, and the hard sealing is held
Device is fixedly installed on the container fixed mechanism.
As a specific technical scheme, the container fixed mechanism includes firm banking, both ends difference above firm banking
It is provided with the first fixed ear and the second fixed ear；It is to be provided with the first limited mouth in first fixed ear, described second is solid
Determine to be provided with the second limited mouth on ear；The both ends of the hard sealing container are respectively arranged with the first limited block, the second limited block；
First limited block is limited in the first limited mouth, and the second limited block is limited in the second limited mouth.
As a specific technical scheme, the pressure conduction device further includes medium pipeline extension, conduit, drainage tube
Road and drainage valve；The medium pipeline extension is docked in gas circulation interface with the medium pipeline, the conduit and
The internal liquid flow incoming interface connection；One end of the external drainage pipeline is connect with the internal liquid flow outgoing interface, described
Drainage valve is set to the drainage tube road.
As a specific technical scheme, the internal device for pressure measurement further includes internal liquids recovery bag, the internal liquid
The input terminal of body collection bag is connect with the other end of the external drainage pipeline.
A kind of manufacturing method of above-mentioned internal pressure conduction device, which comprises the following steps:
(1) utricule is processed；
(2) supporting element is assembled in utricule；
(3) utricule and supporting element are assembled on chamber end cap；
(4) chamber end cap for being equipped with air bag and supporting element is assembled on hard cavity.
As a specific technical scheme, the manufacturing method further includes that hard sealing container is assembled to container fixed mechanism
On step；
As a specific technical scheme, the manufacturing method further includes assembling a medium in gas circulation interface described
Pipeline extension draws in one conduit of the internal liquid flow incoming interface assembly, outside the internal liquid flow outgoing interface assembly one
Flow tube road and on the drainage tube road assembly one drainage valve the step of.
The invention has the advantages that using the quick sense film of the power such as easy utricule as load cell；In measurement process
The null offset brought by time change and temperature change can be eliminated with automatic zero set；It can drain and control while monitoring pressure
It treats；It is simple to operate reliable.
Detailed description of the invention
Fig. 1 is the principle of compositionality block diagram of internal pressure conduction device provided by the invention.
Fig. 2 is the schematic diagram of utricule volume and inside and outside differential pressure relationship in internal pressure conduction device provided by the invention.
Fig. 3 is the assembling figure of internal pressure conduction device provided in an embodiment of the present invention.
Fig. 4 is the exploded view of internal pressure conduction device provided in an embodiment of the present invention.
Fig. 5 is hard sealing container in internal pressure conduction device provided in an embodiment of the present invention, air bag, the fixed machine of container
The assembling figure of structure part.
Fig. 6 is the schematic diagram of air bag in internal pressure conduction device provided in an embodiment of the present invention.
Fig. 7 is the schematic diagram of hard cavity in internal pressure conduction device provided in an embodiment of the present invention.
Fig. 8 is the schematic diagram of chamber end cap in internal pressure conduction device provided in an embodiment of the present invention.
Fig. 9 is the structural schematic diagram of container fixed mechanism in internal pressure conduction device provided in an embodiment of the present invention.
Drawing reference numeral illustrates: 10- conduit, 20- hard sealing container, 30- air bag, 40- gas piping extension, outside 50-
Drainage line, 60- drain valve, 70- container fixed mechanism；11- conduction hole, 12- connecting interface, 21- hard cavity, 211- chamber
Wall, 212- accommodation space, liquid flow incoming interface in 213- body, 214- card slot, the first limited block of 215-, 22- chamber end cap, 222-
Pipe connections, 223- gas circulate interface, liquid flow outgoing interface in 224- body, the second limited block of 225-, 31- capsule ontology, 32- gas
Body pipeline, 33- supporting element, 34- fixing end, 41- jointing, 71- firm banking, the first fixed ear of 72-, 73- second are fixed
Ear, the first pilot hole of 74-, the second pilot hole of 75-, the first limited mouth of 76-, the second limited mouth of 77-, 78- flexibility rubber mat.
Specific embodiment
As shown in Figure 1, internal pressure conduction device provided by the invention specifically include that one can accommodate blood, tissue and
The hard sealing container and the quick sense film of power of the internal liquid such as body fluid, the quick sense film of power are arranged in hard sealing container, will
Hard sealing container is divided into an internal liquid-retaining volume and a measuring medium accommodation space；Internal liquid-retaining volume
For accommodating from the internal liquid drawn in vivo, for accommodating measuring medium in measuring medium accommodation space, measuring medium can be with
It is dielectric gas, is also possible to media fluid.The pressure for the internal liquid drawn is conducted by the quick sense film of power to measuring medium,
Then the electric signal of the pressure of internal liquid can be obtained by the pressure that pressure sensor senses measuring medium.
The module being represented by dashed line in Fig. 1 is to use matched function element to realize survey pressure and drainage, in figure
It is presented, is mainly to aid in the realization for understanding final pressure measuring function.
The quick sense film of power can be the utricule in hard sealing container, forms the medium in utricule and accommodates sky
Between, medium accommodation space connects the corresponding interface by medium pipeline and draws hard sealed container outside.The quick sense film of power is also possible to
The sheet of membrane that surrounding and hard sealing container are tightly connected isolates a measuring medium in hard sealing container and accommodates sky
Between, which draws hard sealed container outside by hard sealing container one interface.
By taking utricule as an example, as long as the stress (tension) of utricule itself is zero, then pressure sensor can be surveyed accurately
Measure internal pressure.
As shown in Figure 2.Indicate utricule volume and inside and outside differential pressure relationship.When utricule volume in some value V1 or more and
In some value V2 or less, inside and outside differential pressure 0, i.e. utricule no-station pole canopy itself.It is inside and outside when utricule volume is in some value V1 or less
Pressure difference is negative, i.e., utricule itself has negative sense tension, and increasing.When utricule volume is in some value V2 or more, interior external pressure
Difference is positive, i.e., utricule itself has positive tension, and increasing.Therefore, V1 and V2 interposition is filled with when quantitatively inflating
Some value V3, middle V3=(V1+V2)/2 set is optimal.
In order to which technical solution of the present invention is more clearly understood, the present invention is made below in conjunction with attached drawing and specific embodiment
It further illustrates:
Embodiment one:
As shown in figure 3, present embodiments providing a kind of internal pressure conduction device, including conduit 10, hard sealing container
20, air bag 30, gas piping extension 40, external drainage pipeline 50, drainage valve 60, container fixed mechanism 70 and internal liquid return
Closing bag (not shown).
In conjunction with shown in Fig. 4, Fig. 5 and Fig. 6, hard sealing container 20 includes hard cavity 21 and chamber end cap 22；Hard chamber
Body 21 includes the cavity wall 211 enclosed, and cavity wall 211 has the accommodation space 212 for accommodating air bag 30, and cavity wall 211 is transparent.Cavity wall
211 one end are closed and the sealed end is provided with internal liquid flow incoming interface 213, and liquid flow incoming interface 213 and the appearance in vivo
Receiving space 212 communicates.211 other end of cavity wall opens up installation opening, and installation opening is provided with card slot 214, and chamber end cap 22 can
Hermetically in buckle to card slot 214.Chamber end cap 22 is outward extended with pipe connections 222, and gas stream is arranged on pipe connections 222
Connect mouth 223 and internal liquid flow outgoing interface 224.
The first rectangular limited block 215 is additionally provided on the outside of the end of the closed end of hard cavity 21, internal liquid flows into
Interface 213 can be exposed to first limited block 215；It is provided with the second rectangular limited block 225 on chamber end cap 22, second
Limited block 225 surrounds pipe connections 222.As shown in connection with fig. 7, container fixed mechanism 70 includes firm banking 71, firm banking 71
Top both ends are respectively arranged with the first fixed ear 72 and the second fixed ear 73；The first rectangular limit is provided in first fixed ear
Position mouth 76, is provided with the second rectangular limited mouth 77 in the second fixed ear 73；First limited block 215 is inserted into the first limit
Position mouth 76, the second limited block 225 are inserted into the fixation of realization hard sealing container 20 after the second limited mouth 77.In conjunction with Fig. 9 institute
Show, hard sealing container 20 is fixed on container fixed mechanism 70, and perforative first dress up and down is provided on firm banking 71
Distribution 74, the second pilot hole 75, first pilot hole 74 and the second pilot hole 75 are parallel strip, and it is close to be located at hard
Seal the two sides of container 20.Flexible rubber mat 78 is provided with below firm banking 71.
As shown in figure 8, air bag 30 includes capsule ontology 31, gas piping 32 and fixing end 34, and in the present embodiment, capsule ontology 31
It is integrally formed with gas piping 32.One end of gas piping 32 is set on capsule ontology 31 and is connected to 31 inner cavity of capsule ontology, separately
The gas of one end and hard sealing container 20 circulation interface 223 is tightly connected；Supporting element 33 is a support tube or support rod, the branch
It supports, is passed through inside the capsule ontology 31 in the middle part of part 33, capsule ontology is stretched out in one end, and is tightly connected with capsule ontology 31, stretches out capsule sheet
One end of body forms a fixing end 34, and fixing end 34 is fixed in hard sealing container, and 33 other end of supporting element penetrates flue
Road 32 is simultaneously supported in hard sealing container 20, and the other end and gas piping inner wall non-tight cooperate.
In conjunction with shown in Fig. 3, Fig. 6, gas piping extension 40 is docked at gas circulation interface 223 with gas piping 32,
External drainage pipeline 50 inside internal liquid flow outgoing interface 224 and hard sealing container 20 by being connected to.Drainage valve 60 is set to
On external drainage pipeline 50, the input terminal of internal liquids recovery bag is connect with the other end of external drainage pipeline 50, constitutes drainage component.
With continued reference to Fig. 3,10 one end of conduit is provided with conduction hole 11, and the other end is provided with connecting interface 12, is used for and hard
The internal liquid flow incoming interface 213 of matter sealing container 20 seals docking, and conduit 10 indicates scale above.Jointing 41 is set to
Gas piping extension 40 for connecting the aerating and exhaust device of air bag 30 is also used to that pressure is arranged on gas piping extension 40
Sensor, the aerating and exhaust device and pressure sensor being written herein press through journey for aiding in illustrating entire survey, and are not this implementation
The device for the pressure conduction device that example provides itself.
Specific working mode: by taking intracranial pressure measures as an example, in cranium place punching appropriate, conduit 10 is equipped with conduction hole
It is inserted into encephalic behind the hole that 11 one end is beaten by cranium, hard sealing container 20 is fixed on suitably by container fixed mechanism 70
Position keeps measurement result accurate to guarantee the stabilization of conduit 10 and hard sealing container 20；Drainage valve 60 is opened, in order to
The air in hard sealing container 20 is discharged, cerebrospinal fluid is flowed by conduit 10 and is full of hard sealing container 20 or flow to drainage
At valve 60, drainage valve 60 is closed；At this point, the aerating and exhaust device starting that jointing 41 connects is inflated air bag 30,
When aeration quantity is a particular value, the tension of air bag is 0, and the pressure in air bag is equal with the pressure of cerebrospinal fluid；Jointing 41
The pressure sensor of connection can carry out the measurement of intracranial pressure.When the pressure rise of encephalic, drainage valve 60, cerebrospinal fluid are opened
It can flow into the cerebrospinal fluid collecting bag of drainage 60 side of valve connection.
When needing gasbag pressure to return to zero, it is located at except cerebrospinal fluid to be measured due to air bag and is connected with the aerating and exhaust device of air bag
It is logical, it can be returned to zero at any time to pressure sensor by aerating and exhaust device.
Embodiment two
Embodiment two provides a kind of manufacturing method of pressure conduction device described in embodiment one, specifically includes: processing air bag
→ supporting element is assembled in air bag to → air bag and supporting element are assembled on chamber end cap → air bag and supporting element will be equipped with
Chamber end cap be assembled on hard cavity, constitute hard sealing container → by hard sealing container and be assembled to container fixed mechanism
Upper → assembly pipeline → carry out air tight test.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Those of ordinary skill in the art in the technical scope disclosed by the present invention, are equal according to the technical solution of invention and design
Replacement changes, and should be covered by the scope of protection of the present invention.
Claims (16)
1. a kind of internal pressure conduction device, which is characterized in that answered including hard sealing container and the quick sense film of power, power sensitivity
Film is arranged in hard sealing container, and hard sealing container is divided into an internal liquid-retaining volume and a measuring medium
Accommodation space；The flow of media interface being connected to the measuring medium accommodation space is provided in hard sealing container, hard is close
The internal liquid flow incoming interface and internal liquid flow outgoing interface being connected to the internal liquid-retaining volume are provided on envelope container.
2. internal pressure conduction device according to claim 1, which is characterized in that the measuring medium is liquid or gas
Body.
3. internal pressure conduction device according to claim 2, which is characterized in that the quick sense film of power is a capsule
Body, the utricule inner cavity are the measuring medium accommodation space.
4. internal pressure conduction device according to claim 2, which is characterized in that the quick sense film of power is surrounding and institute
The diaphragm that rigid closed container side wall inner wall is tightly connected is stated, is separated out the measuring medium inside the rigid closed container
Accommodation space.
5. internal pressure conduction device according to claim 3, which is characterized in that the utricule includes capsule ontology and medium
Pipeline, the capsule ontology are set to hard sealed container interior, one end of medium pipeline be set on capsule ontology and with capsule ontology
Inner cavity connection, the other end are connect with the flow of media sealing joint.
6. internal pressure conduction device according to claim 5, which is characterized in that it further include supporting element, the capsule ontology
It is fixedly installed in the hard sealing container by the supporting element.
7. internal pressure conduction device according to claim 6, which is characterized in that pass through the capsule in the middle part of the supporting element
Body interior, one end are stretched out capsule ontology and are tightly connected with capsule ontology, and the one end for stretching out capsule ontology forms a fixing end, described
Fixing end is supported in hard sealing container, and the other end penetrates the medium pipeline and is supported in hard sealing container, described
The other end and medium pipeline inner wall non-tight of supporting element cooperate.
8. internal pressure conduction device according to claim 6, which is characterized in that the internal liquid flow incoming interface setting
In one end of the hard sealing container, the flow of media interface and internal liquid flow outgoing interface are set to the hard sealing
The other end of container.
9. internal pressure conduction device according to claim 8, which is characterized in that the hard sealing container includes hard
The internal liquid flow incoming interface is arranged in cavity and chamber end cap, hard cavity one end, and the other end offers installation opening, the chamber
Body end lid is hermetically assemblied in the installation opening, and the gas circulation interface and internal liquid flow outgoing interface are set to the cavity
On end cap.
10. internal pressure conduction device according to claim 9, which is characterized in that it further include container fixed mechanism, it is described
Hard sealing container is fixedly installed on the container fixed mechanism.
11. internal pressure conduction device according to claim 10, which is characterized in that the container fixed mechanism includes solid
Determine pedestal, both ends are respectively arranged with the first fixed ear and the second fixed ear above firm banking；It is in first fixed ear
It is provided with the first limited mouth, is provided with the second limited mouth in second fixed ear；Distinguish at the both ends of the hard sealing container
It is provided with the first limited block, the second limited block；First limited block is limited in the first limited mouth, and the second limited block is limited in
Two limited mouths.
12. according to claim 1 to internal pressure conduction device described in 11 any one, which is characterized in that further include medium
Pipeline extension, conduit, external drainage pipeline and drainage valve；The medium pipeline extension flow of media interface with it is described
Medium pipeline docking, the conduit are connect with the internal liquid flow incoming interface；One end of the external drainage pipeline and the body
Interior liquid flow outgoing interface connection, the drainage valve are set to the drainage tube road.
13. internal pressure conduction device according to claim 12, which is characterized in that the internal device for pressure measurement is also
Including internal liquids recovery bag, the input terminal of the internal liquids recovery bag is connect with the other end of the external drainage pipeline.
14. the manufacturing method of internal pressure conduction device described in a kind of claim 9, which comprises the following steps:
(1) utricule is processed；
(2) supporting element is assembled in utricule；
(3) utricule and supporting element are assembled on chamber end cap；
(4) chamber end cap for being equipped with air bag and supporting element is assembled on hard cavity.
15. the manufacturing method of the 4 internal pressure conduction devices according to claim 1, it further includes sealing hard that sign, which is,
Container is assembled to the step on container fixed mechanism.
16. the manufacturing method of the 4 or 15 internal pressure conduction devices according to claim 1, which is characterized in that further include in institute
It states in one medium pipeline extension of gas circulation interface assembly, in the internal liquid flow incoming interface and assembles a conduit, in institute
It states internal liquid flow outgoing interface and assembles an external drainage pipeline and the step of assembly one drains valve on the drainage tube road.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811163323.7A CN109259753A (en) | 2018-09-30 | 2018-09-30 | Internal pressure conduction device and its manufacturing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811163323.7A CN109259753A (en) | 2018-09-30 | 2018-09-30 | Internal pressure conduction device and its manufacturing method |
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| CN109259753A true CN109259753A (en) | 2019-01-25 |
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| CN201811163323.7A Pending CN109259753A (en) | 2018-09-30 | 2018-09-30 | Internal pressure conduction device and its manufacturing method |
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Citations (5)
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|---|---|---|---|---|
| US5711302A (en) * | 1994-03-03 | 1998-01-27 | Merit Medical Systems, Inc. | Disposable transducer with digital processing and readout |
| US20020198458A1 (en) * | 2001-06-26 | 2002-12-26 | Thermometrics, Lp; | Reusable fluid pressure transducer monitoring apparatus |
| CN104363935A (en) * | 2012-12-14 | 2015-02-18 | 甘布罗伦迪亚肾脏产品公司 | Diaphragm repositioning for pressure pod using position sensing |
| CN106901713A (en) * | 2017-03-06 | 2017-06-30 | 清华大学 | A kind of implantation type wireless monitoring intracranial pressure system based on air bag |
| CN209360683U (en) * | 2018-09-30 | 2019-09-10 | 珠海亚特兰生命工程科技有限公司 | Internal pressure conduction device |
-
2018
- 2018-09-30 CN CN201811163323.7A patent/CN109259753A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5711302A (en) * | 1994-03-03 | 1998-01-27 | Merit Medical Systems, Inc. | Disposable transducer with digital processing and readout |
| US20020198458A1 (en) * | 2001-06-26 | 2002-12-26 | Thermometrics, Lp; | Reusable fluid pressure transducer monitoring apparatus |
| CN104363935A (en) * | 2012-12-14 | 2015-02-18 | 甘布罗伦迪亚肾脏产品公司 | Diaphragm repositioning for pressure pod using position sensing |
| CN106901713A (en) * | 2017-03-06 | 2017-06-30 | 清华大学 | A kind of implantation type wireless monitoring intracranial pressure system based on air bag |
| CN209360683U (en) * | 2018-09-30 | 2019-09-10 | 珠海亚特兰生命工程科技有限公司 | Internal pressure conduction device |
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