CN105433930A - Optical fiber pressure measuring device - Google Patents
Optical fiber pressure measuring device Download PDFInfo
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- CN105433930A CN105433930A CN201511033006.XA CN201511033006A CN105433930A CN 105433930 A CN105433930 A CN 105433930A CN 201511033006 A CN201511033006 A CN 201511033006A CN 105433930 A CN105433930 A CN 105433930A
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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
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/0215—Measuring pressure in heart or blood vessels by means inserted into the body
- A61B5/02152—Measuring pressure in heart or blood vessels by means inserted into the body specially adapted for venous pressure
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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
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/02141—Details of apparatus construction, e.g. pump units or housings therefor, cuff pressurising systems, arrangements of fluid conduits or circuits
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/0215—Measuring pressure in heart or blood vessels by means inserted into the body
- A61B5/02154—Measuring pressure in heart or blood vessels by means inserted into the body by optical transmission
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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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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/02—Details of sensors specially adapted for in-vivo measurements
- A61B2562/0252—Load cells
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Cardiology (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Veterinary Medicine (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Public Health (AREA)
- Medical Informatics (AREA)
- Physics & Mathematics (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Physiology (AREA)
- Vascular Medicine (AREA)
- Gastroenterology & Hepatology (AREA)
- Endocrinology (AREA)
- Measuring Fluid Pressure (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Abstract
The invention discloses an optical fiber pressure measuring device which comprises a pressure measuring probe and a probing conduit. The pressure measuring probe comprises a probing cylinder, a film sleeve, a sealing ring, a sealing film and a conduction medium. The film sleeve is of a cylindrical structure with an opening in one end, and the probing cylinder is sleeved with the open end. The side face of the film sleeve is provided with a hollowed-out section and provided with the sealing film to seal the hollowed-out section. The sealing ring is arranged in the probing cylinder. The probing cylinder, the film sleeve and the sealing ring form a closed space filled with the conduction medium. The probing conduit comprises a connecting cylinder, a conducting sleeve, a lining and an optical fiber. The conducting sleeve is assembled at the front end of the connecting cylinder, and the lining is assembled at the rear end of the connecting cylinder. The optical fiber sequentially penetrates through the lining, the connecting cylinder and the conducting sleeve. The extending part serves as a sensor. The probing conduit is inserted into the pressure measuring probe, and a part of the optical fiber serving as the sensor extends into the closed space where the conducting medium is located. The optical fiber pressure measuring device has the advantages of aiming to improve probing precision of the measuring probe in clinic application, and preventing cross infection generated by reuse of the measuring probe.
Description
Technical field
The present invention relates to a kind of pressure tester, especially optical fiber pressure tester.
Background technology
On clinical medicine, accurately measure body-internal-circulation venous pressure, for medical diagnosis on disease treatment and pathological study, there is very great meaning.
Modern medicine is thought, the major complications of liver cirrhosis is hepatites virus infections person and hepatopathy patient, and necessarily portal blood pressure is abnormal increases for its consequence, thus causes esophageal varicosis and sudden high-risk bleeding.Esophageal veins blood pressure and portal blood pressure and hepatic vein pressure ladder value linearly related law, measuring esophageal veins blood pressure is clinically for monitoring and judge the effective means of patient's bleeding omen.Clinically by detection esophageal veins pressure, become auxiliary diagnosis and treated the important means of guarding.
At present, vein pressure measurement generally needs to complete by endoscope, and as detecting subject content in body, clinical practice mainly contains intravenous pressure measurement and vein measuring pressure from outside two kinds of forms, the former is by fine needle aspiration cirso-Measure blood pressure, and the latter touches to measure esophageal variceal vein blood pressure.Puncture measurement is easy to cause hemorrhage and cause infecting, and has been rarely used in clinical; Touch measurement and have multiple method, detection method observed by conventional have conduit UNICOM detection method and air bag.
It is a kind of novel non-invasive venous pressure measuring method that fiber-optic pressure sensor detects, at present just launch application at clinical medicine, the vein measuring cell wherein adopting photoelectric measurement principle to realize detecting and adopt Fibre Optical Sensor to be a new technique as the application of measuring probe.
In the patented technology that the present inventor has applied for, patent of invention " a kind of venous pressure measuring probe of clinical medicine application ", ZL201220232221; Patent of invention " a kind of venous pressure measuring probe and installation method, using method ", 2012101605500, sufficient explanation has been done in the design for related vein pressure measurement instrument.But; the measuring probe being used as to measure and gather pressure signal is then the weak link of whole application system; by the restriction of its composition material Structure and energy condition, the deficiencies such as the service life of measuring probe is short, certainty of measurement is low, posterior maintenance is difficult, constrain scale and manufacture process.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of optical fiber pressure tester, is intended to improve the detection accuracy of measuring probe in clinical practice, prevents measuring probe from reusing the cross infection of generation simultaneously.
The present invention is achieved through the following technical solutions.
A kind of optical fiber pressure tester, comprises pressure measurement probe, detection conduit;
Above-mentioned pressure measurement probe comprises visits cylinder, Membrane cover, sealing ring, diaphragm seal, transmitting medium, above-mentioned Membrane cover is the tubular structure of one end open, its opening is sleeved on above-mentioned spy cylinder, above-mentioned Membrane cover side has one section of hollow out and arranges above-mentioned diaphragm seal and sealed, above-mentioned sealing ring is arranged in above-mentioned spy cylinder, and above-mentioned spy cylinder, above-mentioned Membrane cover, above-mentioned sealing ring form confined space and fill above-mentioned transmitting medium;
Above-mentioned detection conduit comprises connecting cylinder, conductive sleeve, lining, optical fiber, above-mentioned conductive sleeve is assembled in above-mentioned connecting cylinder front end, above-mentioned lining is assembled in its rear end, above-mentioned optical fiber is successively through above-mentioned lining, above-mentioned connecting cylinder, above-mentioned conductive sleeve, the part of stretching out is as sensor, above-mentioned detection conduit inserts above-mentioned pressure measurement probe, and stretches into the confined space residing for transmitting medium as the part fiber of sensor.
Further, above-mentioned Membrane cover is wedge shape, and has the laterally inclined of above-mentioned diaphragm seal, and above-mentioned Membrane cover is increased gradually by front end its diameter of end to above-mentioned diaphragm seal.
Further, above-mentioned spy cylinder is that front opening is tapered, the tubular structure of back-end sealing, and the side that above-mentioned Membrane cover has diaphragm seal is stretched in longer one end, above-mentioned spy cylinder front end.
Further, above-mentioned spy cylinder is provided with to groove in a circle, and the above-mentioned interior spy cylinder diameter limited to groove is in order to spacing to above-mentioned sealing ring.
Further, above-mentioned spy cylinder is provided with interior to concave point, above-mentioned connecting cylinder be provided with above-mentioned interior mate to concave point one enclose groove, above-mentioned interior to concave point and above-mentioned groove jointly spacing to above-mentioned connecting cylinder.
Further, the diameter of above-mentioned conduction sleeve is less than above-mentioned connecting cylinder, and above-mentioned conductive jacket jacket casing puts into the front end of above-mentioned connecting cylinder, and spacing by the groove of above-mentioned connecting cylinder.
Further, the rear end of above-mentioned connecting cylinder is provided with socket, and above-mentioned connecting cylinder inserts above-mentioned lining by socket.
Further, be set with outside the socket of above-mentioned connecting cylinder and above-mentioned lining and be provided with spiral duct.
Beneficial effect of the present invention:
During use, measuring probe is arranged on the detection catheter proximal end of vein measuring cell, with detection catheter combination be touch type pressure measurement apparatus, implanted by the guiding of endoscope, and be positioned at and need the vein blood vessel surface of detecting to measure, (such as, when measuring the venous pressure of esophageal varicosis patient, leading gastroscope is detected and is determined by inspection vessel position, again the detection conduit having installed pressure measurement probe is imported by inspection blood vessel surface by endoscopic biopsy hole, implement touch type and detect operation, last for several seconds, until vein measuring cell display terminal report data or figure tend towards stability after namely complete measuring operation.)
Disclosed detection method is, adopt measuring probe and detection conduit integral structure, probe is directly encapsulated in catheter proximal end, and the detection face of probe is parallel with probe column axis.During actual use, due to the restriction of endoscope's inherent structure, the detection face of probe has angle with by examining blood vessel cylinder, easily produce when mutually touching and touch blind area (region that two curved surfaces do not touch), cause Ink vessel transfusing blood flow pressure can not conduct to the detection face of probe completely and by its perception, affect accuracy of detection.The present invention adopts wedge shape to detect Membrane cover, namely be that an angle constructs a detection face tilted in Membrane cover side and with its axis, can solve probe cylinder with by examine blood vessel cylinder have angle time, detection membrane still can form parallel touching with blood vessel cylinder, ensure blood flow pressure non-blind area conduct.
As pressure measurement apparatus matching used with endoscope, it is a kind of system and device of repeated application, because use procedure can be subject to the pollution of patient body endocrine and physiological tissue, strict cleaning and sterilizing must be carried out after every example is detected, this operation not only process is strictly complicated, and very easily damage probe detection face, cause perception element failure.The measuring probe of the present invention's design is disposable simple Devices, by transmitting medium of annotating in advance, disinfects, and carries out sealed storage.By the operation of grafting efficiently and detection conduit compact siro spinning technology during use, be fast combined as touch type pressure measurement apparatus; Finish using, radioactive content probe need only be extractd, exempt the cleaning and sterilizing process of probe, (the detection conduit portion of popping one's head in above is owing to being in the biopsy hole of endoscope all the time in use procedure, the degree being subject to internal pollution is lower, corresponding cleaning and sterilizing operation is relatively simple, and also need not take special maintain measure to detection face).
Accompanying drawing explanation
Fig. 1 is the overall structure partition figure of optical fiber pressure tester of the present invention;
Fig. 2 is the structural representation of pressure measurement of the present invention probe;
Fig. 3 is the structural representation that the present invention detects conduit.
Detailed description of the invention
According to drawings and embodiments the present invention is described in further detail below.
Fig. 1 is the overall structure partition figure of optical fiber pressure tester of the present invention, Fig. 2 is the structural representation of pressure measurement of the present invention probe, Fig. 3 is the structural representation that the present invention detects conduit, with reference to Fig. 1-Fig. 3, the present invention, pressure measurement probe comprises visits cylinder 1-1, Membrane cover 1-2, sealing ring 1-3, diaphragm seal 1-4, transmitting medium 1-5, above-mentioned Membrane cover 1-2 is the tubular structure of one end open, its opening is sleeved on above-mentioned spy cylinder 1-1, above-mentioned Membrane cover 1-2 side has one section of hollow out and arranges above-mentioned diaphragm seal 1-4 and sealed, above-mentioned sealing ring 1-3 is arranged in above-mentioned spy cylinder 1-1, above-mentioned spy cylinder 1-1, above-mentioned Membrane cover 1-2, above-mentioned sealing ring 1-3 forms confined space and fills above-mentioned transmitting medium 1-5.
Above-mentioned detection conduit comprises connecting cylinder 2-1, conductive sleeve 2-2, lining 2-3, optical fiber 2-4, above-mentioned conductive sleeve 2-2 is assembled in above-mentioned connecting cylinder 2-1 front end, above-mentioned lining 2-3 is assembled in its rear end, above-mentioned optical fiber 2-4 is successively through above-mentioned lining 2-3, above-mentioned connecting cylinder 2-1, above-mentioned conductive sleeve 2-2, the part of stretching out is as sensor, above-mentioned detection conduit inserts above-mentioned pressure measurement probe, and stretches into the confined space residing for transmitting medium as the part fiber of sensor.
Above-mentioned Membrane cover 1-2 is wedge shape, and has the laterally inclined of above-mentioned diaphragm seal 1-4, and above-mentioned Membrane cover 1-2 is increased gradually by front end its diameter of end to above-mentioned diaphragm seal 1-4.
Above-mentioned spy cylinder 1-1 is that front opening is tapered, the tubular structure of back-end sealing, and the side that above-mentioned Membrane cover 1-2 has diaphragm seal 1-4 is stretched in longer one end, above-mentioned spy cylinder 1-1 front end.
Above-mentioned spy cylinder 1-1 is provided with to groove 1-11 in a circle, and the above-mentioned interior spy cylinder 1-1 diameter limited to groove 1-11 is in order to spacing to above-mentioned sealing ring 1-3.
Above-mentioned spy cylinder 1-1 is provided with interior to concave point 1-12, above-mentioned connecting cylinder 2-1 be provided with above-mentioned interior mate to concave point 1-12 one enclose groove 2-11, above-mentioned interior jointly spacing to above-mentioned connecting cylinder 2-1 to concave point 1-12 and above-mentioned groove 2-11.
The diameter of above-mentioned conduction sleeve 2-2 is less than above-mentioned connecting cylinder 2-1, and above-mentioned conductive jacket jacket casing 2-2 puts into the front end of above-mentioned connecting cylinder 2-1, and spacing by the groove 2-11 of above-mentioned connecting cylinder 2-1.
The rear end of above-mentioned connecting cylinder 2-1 is provided with socket 2-12, and above-mentioned connecting cylinder 2-1 inserts above-mentioned lining 2-3 by socket 2-12.
Be set with outside the socket 2-12 of above-mentioned connecting cylinder 2-1 and above-mentioned lining 2-3 and be provided with spiral duct 2-5.
Pressure measurement probe is the awareness tool of fibre optic compression sensor, pressure measurement probe mainly adopts titanium-aluminium alloy, fe-cr-ni alloy, polyurethane (Polyurethane), natural rubber and polyamide (Polyamide, etc. PA) material is through Precision Machining and encapsulation composition, is disposable consumption equipment in measuring cell application process.
Pressure measurement probe is miniature column, and cylinder cross section diameter is less than 2mm, and principal length is less than 25mm.
Visit the material selection ultra-thin stainless steel material of cylinder 1-1, first be processed to form by cold punching the semiclosed cylinder that one end is circular cone, and two settings place in stage casing, respectively circumferentially in rolling and processing one in groove 1-11 and compacting one to concave point 1-12, be that an angle adopts grinding to form Plane Notch afterwards in conical end side and cylindrical shell axis, namely this otch becomes the conduction face of measuring probe after being covered by Membrane cover 1-2.
Respectively, the location as sealing ring 1-3 relies on fixing in the interior effect to groove 1-11; As the termination location of grafting detection conduit.
Membrane cover 1-2 adopts natural rubber emulsifying casting, during installation, be sleeved on and visit cylinder 1-1 conical end, closely combined by the slow release bonding agent of precoating and the elasticity tension of Membrane cover between Membrane cover 1-2 and spy cylinder 1-1 faying face, and at spy cylinder otch planar configuration wedge shape conduction face.
Sealing ring 1-3 adopts macromolecular material casting, by visiting cylinder 1-1 otch and to implant in cylinder and pre-coating adhesive being fixed on desired location (this manufacturing step must complete before Membrane cover is installed), its effect is that prevent from the popping one's head in transmitting medium 1-5 of liquid state of interior filling leaks or volatilization.Sealing ring 1-3 endoporus gives over to Fibre Optical Sensor passage in grafting detection conduit, first liquid transmitting medium is injected by sealing ring endoporus during manufacture, afterwards, sealing ring endoporus blocked by the sealing-plug re-using a material identical with sealing ring, prevent transmitting medium from overflowing, can sealing-plug be pulled out until use when installing.
Detection conduit is the conductive features connecting instrument complete machine and pressure measurement probe, adopts elastic helix sleeve pipe 2-5 to encapsulate through sweat soldering after optical fiber 2 (part as pressure transducer) and optical fiber (part as conduction) thereof are implanted again.Due to frequently plug and the distortion stretching in use of detection conduit, easily there is fatigue, only there is the service life of limit, belong to supporting rapid wear device.
For gathering the interface unit with transmitting optical signal.Design service life, for measuring (plug operation) 6000 times or 12 work moons, is the rapid wear device needing periodic maintenance or replacing.
Perception pressure signal also changes the detection part of optical signal into.Adopt the materials such as titanium-aluminium alloy, fe-cr-ni alloy, polyurethane (Polyurethane) and polyamide (Polyamide, PA) natural rubber, completed by accurate machined and sterile packaged, belong to disposable consumption equipment.
Above-described embodiment, only for technical conceive of the present invention and feature are described, its object is to allow the personage being familiar with this art can understand content of the present invention and be implemented, can not limit the scope of the invention with this.All equivalences done according to spirit of the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (8)
1. an optical fiber pressure tester, is characterized in that, comprises pressure measurement probe, detection conduit;
Described pressure measurement probe comprises visits cylinder, Membrane cover, sealing ring, diaphragm seal, transmitting medium, described Membrane cover is the tubular structure of one end open, its opening is sleeved on described spy cylinder, described Membrane cover side has one section of hollow out and arranges described diaphragm seal and sealed, described sealing ring is arranged in described spy cylinder, and described spy cylinder, described Membrane cover, described sealing ring form confined space and fill described transmitting medium;
Described detection conduit comprises connecting cylinder, conductive sleeve, lining, optical fiber, described conductive sleeve is assembled in described connecting cylinder front end, described lining is assembled in its rear end, described optical fiber is successively through described lining, described connecting cylinder, described conductive sleeve, the part of stretching out is as sensor, described detection conduit inserts described pressure measurement probe, and stretches into the confined space residing for transmitting medium as the part fiber of sensor.
2. optical fiber pressure tester according to claim 1, is characterized in that, described Membrane cover is wedge shape, and has the laterally inclined of described diaphragm seal, and described Membrane cover is increased gradually by front end its diameter of end to described diaphragm seal.
3. optical fiber pressure tester according to claim 1, is characterized in that, described spy cylinder is that front opening is tapered, the tubular structure of back-end sealing, and the side that described Membrane cover has diaphragm seal is stretched in longer one end, described spy cylinder front end.
4. optical fiber pressure tester according to claim 1, is characterized in that, described spy cylinder is provided with to groove in a circle, and the described interior spy cylinder diameter limited to groove is in order to spacing to described sealing ring.
5. optical fiber pressure tester according to claim 1, is characterized in that, described spy cylinder is provided with interior to concave point, described connecting cylinder be provided with described interior mate to concave point one enclose groove, described interior to concave point and described groove jointly spacing to described connecting cylinder.
6. optical fiber pressure tester according to claim 5, is characterized in that, the diameter of described conduction sleeve is less than described connecting cylinder, and described conductive jacket jacket casing puts into the front end of described connecting cylinder, and spacing by the groove of described connecting cylinder.
7. optical fiber pressure tester according to claim 1, is characterized in that, the rear end of described connecting cylinder is provided with socket, and described connecting cylinder inserts described lining by socket.
8. optical fiber pressure tester according to claim 1, is characterized in that, is set with and is provided with spiral duct outside the socket of described connecting cylinder and described lining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511033006.XA CN105433930B (en) | 2015-12-31 | 2015-12-31 | Optical fiber pressure measuring device for venous blood pressure measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511033006.XA CN105433930B (en) | 2015-12-31 | 2015-12-31 | Optical fiber pressure measuring device for venous blood pressure measurement |
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| Publication Number | Publication Date |
|---|---|
| CN105433930A true CN105433930A (en) | 2016-03-30 |
| CN105433930B CN105433930B (en) | 2022-09-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511033006.XA Active CN105433930B (en) | 2015-12-31 | 2015-12-31 | Optical fiber pressure measuring device for venous blood pressure measurement |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20200375472A1 (en) * | 2019-05-29 | 2020-12-03 | Hefei Chart Medical Instrument Co., Ltd. | Filming method of probe by filling way and probe thereof |
Citations (5)
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| US6485428B1 (en) * | 1998-04-21 | 2002-11-26 | Dietmar Enk | Apparatus for and method of intravasal pressure measurement and low-contamination insertion of catheters for example into blood vessels |
| CN102908133A (en) * | 2012-11-12 | 2013-02-06 | 合肥优尔电子科技有限公司 | Esophagus vein blood pressure measuring instrument |
| US20140024950A1 (en) * | 2012-07-20 | 2014-01-23 | Acist Medical Systems, Inc. | Fiber optic sensor assembly for sensor delivery device |
| CN103976722A (en) * | 2014-05-26 | 2014-08-13 | 中南大学湘雅三医院 | Non-invasive pressure measuring method for esophageal varices |
| US20150173629A1 (en) * | 2013-12-19 | 2015-06-25 | Volcano Corporation | Device, system, and method for assessing intravascular pressure |
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2015
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6485428B1 (en) * | 1998-04-21 | 2002-11-26 | Dietmar Enk | Apparatus for and method of intravasal pressure measurement and low-contamination insertion of catheters for example into blood vessels |
| US20140024950A1 (en) * | 2012-07-20 | 2014-01-23 | Acist Medical Systems, Inc. | Fiber optic sensor assembly for sensor delivery device |
| CN102908133A (en) * | 2012-11-12 | 2013-02-06 | 合肥优尔电子科技有限公司 | Esophagus vein blood pressure measuring instrument |
| US20150173629A1 (en) * | 2013-12-19 | 2015-06-25 | Volcano Corporation | Device, system, and method for assessing intravascular pressure |
| CN103976722A (en) * | 2014-05-26 | 2014-08-13 | 中南大学湘雅三医院 | Non-invasive pressure measuring method for esophageal varices |
Non-Patent Citations (3)
| Title |
|---|
| KONG D-R ET AL: "Fiberoptic sensor for noninvasive measurement of variceal pressure", 《ENDOSCOPY》 * |
| X.DAI ET AL: "A pressure sensor using tapered optical fiber and curved polymer films", 《PHOTONICS NORTH 2011》 * |
| 余芳芳 等: "一种光纤压力传感器测量食管曲张静脉压力的方法", 《世界华人消化杂志》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20200375472A1 (en) * | 2019-05-29 | 2020-12-03 | Hefei Chart Medical Instrument Co., Ltd. | Filming method of probe by filling way and probe thereof |
| US11633883B2 (en) * | 2019-05-29 | 2023-04-25 | Hefei Chart Medical Instrument Co., Ltd. | Filming method of probe and probe thereof |
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| Publication number | Publication date |
|---|---|
| CN105433930B (en) | 2022-09-27 |
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Effective date of registration: 20190530 Address after: 230088 National University Science Park C-310, 602 Huangshan Road, Hefei High-tech Zone, Anhui Province Applicant after: HEFEI ZHONGNA MEDICAL INSTRUMENT Co.,Ltd. Address before: Room C-310, Business Incubation Center, 602 Huangshan Road, Hefei High-tech Zone, Anhui Province Applicant before: Hefei Youo Electronic Technology Co.,Ltd. |
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