CN105854159A - Catheter with fiber optic pressure sensor for detecting pressure in body cavity - Google Patents
Catheter with fiber optic pressure sensor for detecting pressure in body cavity Download PDFInfo
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- CN105854159A CN105854159A CN201510032736.1A CN201510032736A CN105854159A CN 105854159 A CN105854159 A CN 105854159A CN 201510032736 A CN201510032736 A CN 201510032736A CN 105854159 A CN105854159 A CN 105854159A
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- conduit
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- cavity
- compression sensor
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Abstract
The invention discloses a catheter with a fiber optic pressure sensor for detecting the pressure in the body cavity. During the intravenous medicine delivery, the catheter detects the pressure of the blood through the fiber optic pressure sensor integrated in the catheter, and has the functions of delivering the medicine, measuring the pressure inside the blood vessel, and collecting the blood simultaneously, and thus one catheter has multiple functions; the operation that a doctor needs multiple inserted catheters for completing the operations including medicine delivery, pressure measurement and blood sampling during the surgery is simplified, and meanwhile, the pain of a patient is alleviated. The high-precision fiber optic pressure sensor adopted as the pressure measurement part of the catheter is small in size and light in weight, the pressure measurement principle of the fiber optic pressure sensor is different from that of the traditional mechanical strain page type or water column type pressure measurement device, the fiber optic pressure sensor senses the change of the ambient pressure according to the optical curvature change generated after being pressed, and transmits a pressure change signal to an in-vitro monitor and a signal processor through a microwire, then the blood pressure level and change condition inside the human blood vessel are measured, the pressure measurement operation is convenient and reliable, and the catheter belongs to a novel complex-function catheter.
Description
Technical field
The present invention is a kind of conduit with fibre optic compression sensor detection bodies cavity pressure, including various drainage tubes (particularly intracranial drainage tube), tube for transfusion and central venous catheter etc..
Background technology
The drainage tube applied clinically and conduit kind are a lot, have for neurosurgery Encephalic drainage, have for wound, have for urethral catheterization, thoracic cavity, gastrointestinal tract, biliary tract etc. also have application.Surgical drainage, in order that being directed to external by the pus gathered between tissue or in body cavity, blood, liquid, prevents postoperative infection and affects wound healing, having extremely wide application in clinical medicine.Central venous catheter is for setting up the infusion of drug path of human vas, can be also used for extracting venous blood, in wide clinical application in Rescuing Critical Patients, chemotherapy of tumors, vein parenteral nutrition, long-term infusion, the patients such as child infusion, be one safely, quickly, respond well venous transfusion approach.
Existing drainage tube or conduit, it is only that the pus gathered between tissue or in body cavity, blood, liquid are directed to external or carry medicine in human vein, and clinician drain, extract venous blood or generally require during loading between measurement tissue, body cavity or intracardiac blood pressure, thus take more precisely according to the actual state of an illness of patient, more effectively treatment, drain scheme.At present clinical the most this most again can the conduit of drain with pressure detecting function, this is accomplished by doctor and repeatedly changes drainage tube or conduit and the conduit of detection pressure in body cavities when drain and pressure measurement, so operation necessarily brings more miscellaneous operation to doctor, brings bigger misery to patient simultaneously.In view of this consideration, clinician need a kind of can detect intracardiac or body intracavity pressure while can complete again drain or loading operation possess conduit or the drainage tube having pressure detecting sensing function.
Summary of the invention
Based on above-mentioned clinical demand, the present invention proposes a kind of conduit with fibre optic compression sensor.This fibre optic compression sensor is a kind of miniature high-accuracy optical pickocff, and it can provide different feedback signal according to sensor local environment pressure difference, for accurate pressure measurement.This sensor is different from traditional mechanics sensor, and its volume is small, lightweight, changes perception ambient pressure variations by the optical curvature after self pressurized.Sensor is securable to conduit head end, completes pressure measurement operation, one tube multipurpose, accurate pressure measurement while clinical drain or clinical loading.
The conduit that the present invention proposes is with this feature of fibre optic compression sensor, and sensor is bonding by the splendid glue of biocompatibility or is fixed on conduit cavity by the way of thermal welding.Ensure that the stream of tube cavity is unobstructed after fibre optic compression sensor is fixing simultaneously.Measuring pressure of sensor head can directly or indirectly and bioresorbable simultaneously.The fixed position of fibre optic compression sensor can at pipe foremost, it is also possible to needs to be fixed on the optional position of tube chamber according to clinic.
Fibre optic compression sensor tail end has holding wire to lead to fibre optic compression sensor power supply and monitor assemblies, and fibre optic compression sensor holding wire, through special handling, is a kind of micro wiring, possesses effect of antithrombotic antiplatelet condensation.
The catheter interior cavity that the present invention proposes can be single lumen catheter, double lumen tube, three lumens or four lumens, can make the conduit of more Multicarity according to clinical demand simultaneously.A kind of preferably scheme is double lumen tube, and a cavity is used for fixing optical pressure sensor and holding wire, and another cavity is used for the drain of body fluid or is used for carrying medicine.Drain cavity is connected at head end with sensor fixed cavity, and loading cavity is connected at head end with sensor fixed cavity, it is simple to measure the blood pressure of loading position when drain or loading simultaneously.
The conduit that the present invention proposes, in addition to having the function of general drainage conduit, also with this symbolic characteristic of fibre optic compression sensor, is the conduit of novel complex function.This complex function is also embodied in pipe internal cavity can possess administration cavity, and conduit can be fabricated to three chambeies, and fibre optic compression sensor is fixed in a chamber, and a chamber is used for drain, and a chamber is used for being administered.The conduit of more Multicarity can be designed to according to clinical demand simultaneously, 2 can be installed in different cavitys, the most multiple sensors, or configure 2 in different cavitys, the most loadings, gather blood access.
Accompanying drawing illustrates:
Fig. 1 single lumen catheter schematic diagram
1. fibre optic compression sensor；2. micro wiring；3. conduit
Fig. 2 double channel catheter schematic diagram
4. wire cavity；5. loading cavity
Fig. 3 tri-chamber band is administered cavity conduit schematic diagram
6. gather blood cavity.
Detailed description of the invention:
Embodiment 1
Fig. 1 is single lumen catheter schematic diagram, described mini optical fibre pressure transducer, and it is fixed on the inner chamber of conduit 3, and fixed position is 3 millimeters of tube head end of distance.The fixed form of fibre optic compression sensor 1 is that sensor is welded into conduit cavity wall by bonding or hot melt the mode of glue.Signal is drawn by fibre optic compression sensor micro wiring 2, and micro wiring surface covers polyhybrid cover, processes through super lubricant coating, can prevent thrombosis outside sheath.This embodiment, simple in construction, conduit is cheap.Single lumen catheter sensor conductor and drainage channel exist together in a cavity, if conduit cavity is relatively thin, easily cause blocking.If conduit is relatively thick, the holding wire of swing easily snaps off.
Embodiment 2
Conduit is fabricated to two-chamber, and a cavity is used for fixing wire, i.e. wire cavity 4, and another cavity is used for doing loading passage, i.e. loading cavity 5, and the fixed form of fibre optic compression sensor is as described in embodiment 1.The double channel catheter of this embodiment, can preferably avoid germ contamination, fixes the tube chamber two ends good seal of sensor simultaneously, and sensor conductor is through fixing, relatively reliable, is difficult to wreck.
Embodiment 3
Conduit is made into three chambeies, adds the passage for gathering blood or drain, i.e. gather blood cavity 6 on the basis of above-mentioned the second embodiment.Fibre optic compression sensor head end fixed form is as described in example 1 above.One cavity of this three cavities conduit pipe fixes sensor, and a cavity is used for drain, and the 3rd cavity is used for injecting medicine.The conduit of the band fibre optic compression sensor being so designed that, completes pressure measurement and injection medicine while drain, is complex function conduit, it is possible to achieve one tube multipurpose, saves doctor and frequently change the operation of various function conduit, bring great convenience to clinician.
According to actually used demand, the conduit of the band fibre optic compression sensor of the present invention can be made into has more Multicarity, can be fabricated to multiple pressure transducers according to the actual requirements, as fixed the conduit of 2 sensors.The installation site of sensor fixes the most according to the actual requirements.
Claims (6)
1. a conduit with fibre optic compression sensor detection bodies cavity pressure, main by conduit, micro wiring, fibre optic compression sensor forms, including wire cavity, loading cavity and collection blood cavity, it is characterized in that: conduit cavity is fixed with fibre optic compression sensor, the position that sensor is fixed is at conduit head end, or is fixed on optional position in catheter lumen according to clinical demand, can measure intravascular pressure, gathers blood while loading.
A kind of conduit with fibre optic compression sensor detection bodies cavity pressure, is characterized in that: conduit has single lumen catheter, double lumen tube, three lumens, or is fabricated to the conduit with more Multicarity according to clinical demand.
A kind of conduit with fibre optic compression sensor detection bodies cavity pressure, it is mainly characterized by comprising: in tube chamber to fix 1 fibre optic compression sensor, is provided with collection blood cavity simultaneously；When conduit is made into multi-cavity, in different cavitys, fixes multiple fibre optic compression sensor, or configure multiple collection blood cavity.
A kind of conduit with fibre optic compression sensor detection bodies cavity pressure, it is characterized in that: fibre optic compression sensor tail end has holding wire to lead to fibre optic compression sensor power supply and monitor assemblies, fibre optic compression sensor holding wire is through special handling, it is a kind of micro wiring, possesses antithrombotic antiplatelet and condense feature.
A kind of conduit with fibre optic compression sensor detection bodies cavity pressure, it is characterized in that: tube chamber inner fiber pressure transducer is one or more, the fixed form of fibre optic compression sensor is bonding or thermal welding, and sensor head end directly or indirectly contacts with blood in tube chamber.
A kind of conduit with fibre optic compression sensor detection bodies cavity pressure; it is characterized in that: conduit is drainage tube, tube for transfusion or central venous catheter; but it is not limited to this type of conduit; every at correlative technology field; add similar detection blood pressure, the device of internal pressure, all within the protection domain of this patent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510032736.1A CN105854159A (en) | 2015-01-23 | 2015-01-23 | Catheter with fiber optic pressure sensor for detecting pressure in body cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510032736.1A CN105854159A (en) | 2015-01-23 | 2015-01-23 | Catheter with fiber optic pressure sensor for detecting pressure in body cavity |
Publications (1)
| Publication Number | Publication Date |
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| CN105854159A true CN105854159A (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510032736.1A Pending CN105854159A (en) | 2015-01-23 | 2015-01-23 | Catheter with fiber optic pressure sensor for detecting pressure in body cavity |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109431481A (en) * | 2018-12-25 | 2019-03-08 | 苏州博思光学有限公司 | Mini optical fibre pressure sensor and its manufacturing method, pressure capsule system |
| CN109876185A (en) * | 2019-03-18 | 2019-06-14 | 张海军 | A kind of bracket and preparation method thereof that directional induction is neural stem cell differentiating |
| CN110072441A (en) * | 2016-12-16 | 2019-07-30 | 圣犹达医疗用品国际控股有限公司 | Wireless force snesor |
| WO2020093967A1 (en) * | 2018-11-05 | 2020-05-14 | 苏州润迈德医疗科技有限公司 | Novel catheter for invasive arterial pressure monitoring, and method for using same |
| CN112006670A (en) * | 2020-09-08 | 2020-12-01 | 浙江大学 | Control system for composite venous catheter and real-time monitoring of central venous pressure |
| CN112156323A (en) * | 2020-10-09 | 2021-01-01 | 郑永昌 | Hepatic portal vein catheter |
| WO2022007794A1 (en) * | 2020-07-10 | 2022-01-13 | 阮渊 | Optical fiber guide wire for monitoring intravascular pressure, and intravascular pressure measurement device |
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| US20050043669A1 (en) * | 2003-08-18 | 2005-02-24 | Codman & Shurtleff, Inc. | Trimmable sensing catheter |
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| CN202876059U (en) * | 2012-10-22 | 2013-04-17 | 边俊杰 | Three-cavity stomach tube with detecting function |
| CN103585710A (en) * | 2013-11-25 | 2014-02-19 | 王红军 | Flushing and draining catheter |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110072441A (en) * | 2016-12-16 | 2019-07-30 | 圣犹达医疗用品国际控股有限公司 | Wireless force snesor |
| CN110072441B (en) * | 2016-12-16 | 2022-05-31 | 圣犹达医疗用品国际控股有限公司 | Wireless force sensor |
| WO2020093967A1 (en) * | 2018-11-05 | 2020-05-14 | 苏州润迈德医疗科技有限公司 | Novel catheter for invasive arterial pressure monitoring, and method for using same |
| CN109431481A (en) * | 2018-12-25 | 2019-03-08 | 苏州博思光学有限公司 | Mini optical fibre pressure sensor and its manufacturing method, pressure capsule system |
| CN109431481B (en) * | 2018-12-25 | 2024-03-19 | 苏州博思光学有限公司 | Micro optical fiber pressure sensor, manufacturing method thereof and pressure sensing system |
| CN109876185A (en) * | 2019-03-18 | 2019-06-14 | 张海军 | A kind of bracket and preparation method thereof that directional induction is neural stem cell differentiating |
| WO2022007794A1 (en) * | 2020-07-10 | 2022-01-13 | 阮渊 | Optical fiber guide wire for monitoring intravascular pressure, and intravascular pressure measurement device |
| CN112006670A (en) * | 2020-09-08 | 2020-12-01 | 浙江大学 | Control system for composite venous catheter and real-time monitoring of central venous pressure |
| CN112156323A (en) * | 2020-10-09 | 2021-01-01 | 郑永昌 | Hepatic portal vein catheter |
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Address after: 251100 Dezhou Qihe Economic Development Zone, Shandong Applicant after: Shandong baiduoan Medical Equipment Co.,Ltd. Address before: 251100 Dezhou Qihe Economic Development Zone, Shandong Applicant before: SHANDONG BRANDEN MEDICAL DEVICE CO.,LTD. |