CN105212932B - A kind of intelligent organizational separating operation instrument that can detect bio-electrical impedance - Google Patents
A kind of intelligent organizational separating operation instrument that can detect bio-electrical impedance Download PDFInfo
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- CN105212932B CN105212932B CN201510755805.1A CN201510755805A CN105212932B CN 105212932 B CN105212932 B CN 105212932B CN 201510755805 A CN201510755805 A CN 201510755805A CN 105212932 B CN105212932 B CN 105212932B
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Abstract
A kind of intelligent organizational separating operation instrument that can detect bio-electrical impedance, including detecting electrode, connecting wire, impedance analyzer and foot pedal, detecting electrode and foot pedal are connect by connecting wire with impedance analyzer, the detecting electrode includes layer glass fiberboard, copper foil of the plating two for conducting electric current among layer glass fiberboard, the tip of detecting electrode is an inclined surface, two stainless steel hemispheres are welded on inclined surface, two stainless steel hemispheres are electrically connected with a copper foil respectively, the other end of detecting electrode is connect by electric connector and conducting wire with impedance analyzer.The present invention has the characteristics that noninvasive, cheap, safe and nontoxic evil, operation intelligence and abundant information.
Description
Technical field
The present invention relates to a kind of surgical instruments, are detached more particularly to a kind of intelligent organization that can detect bio-electrical impedance
Surgical instrument belongs to the technical field of medical instrument.
Background technology
Bio-electrical impedance detection technique is a kind of electrical impedance characteristics using biological tissue and its changing rule extraction and people
The detection technique of the relevant biomedical information of body physiology, pathological condition.This detection technique is usually required by least two
Electrode applies faint alternating current or voltage signal to detected tissue, to according to application current or voltage size and phase
Position calculates complex impedance, finally obtains relevant physiology and pathological information according to different application targets.Bio-electrical impedance detects skill
Art has the advantages that noninvasive, reusable, at low cost, easy to operate and detection speed is fast.
Doctor usually using vision and tactile data and combines preoperative image data that tissue is identified in operation, completes
Blunt separation, the operations such as suture knotting.In actual operation, these information are insufficient for doctor's accurate judgement by its hetero-organization
The position of the important nerve and blood vessel of covering, this just influences the lock out operation to blood vessel and nerve, and inaccurate separation can cause
Malpractice.
Chinese patent 200610161085.7 discloses a kind of bio-electrical impedance measuring electrode, it is ensured that electrode with it is tested
Body surface is in close contact, and the case where avoiding electrode from moving, unclamp from measured body or fall off, is effectively improved bio-electrical impedance survey
The accuracy of measured value and repeatability when amount.
Chinese patent 2011100231553 discloses a kind of concentric-ring pattern metallic object for bio-electrical impedance detection technique
Table electrode and its manufacturing method can effectively reduce the contact impedance of metal external electrode and human skin, improve biologic resistance
The measurement accuracy of anti-detection technique.
These patents of invention lay particular emphasis on research external electrode, cannot due to the complexity of structure and biocompatibility etc.
Use it for identifying the occasion of in-vivo tissue in operation.
Invention content
Purpose of the present invention is to solve existing surgical instrument or external electrode not identifying in-vivo tissue biologic resistance in art
Anti- problem, the identification by Electrical Bioimpedance Measurement Technology for organizing in art, providing a kind of can detect bio-electrical impedance
Intelligent organizational separating operation instrument achievees the purpose that improve operation safety.
The intelligent organizational separating operation instrument provided by the invention that bio-electrical impedance can be detected, including detecting electrode, even
Conducting wire, impedance analyzer and foot pedal are connect, detecting electrode and foot pedal are connect by connecting wire with impedance analyzer, described
Detecting electrode includes layer glass fiberboard, and two parallel copper foils for conducting electric current are electroplated among layer glass fiberboard,
Gap between fiberboard is blocked by adhesive of medical, and the tip of detecting electrode is an inclined surface, is welded on inclined surface
Two stainless steel hemispheres, two stainless steel hemispheres are electrically connected with a copper foil respectively, and the other end of detecting electrode passes through electricity
Connector and conducting wire are connect with impedance analyzer.
The leading edge at the inclined surface tip of the detecting electrode is arc-shaped.
The advantages and positive effects of the present invention：
The present invention has the characteristics that noninvasive, cheap, safe and nontoxic evil, operation intelligence and abundant information.
Description of the drawings
Fig. 1 is the intelligent organizational separating operation instrument schematic diagram that can detect bio-electrical impedance.
Fig. 2 is detecting electrode vertical view.
Fig. 3 is detecting electrode side view.
In figure, 1 detecting electrode, 2 connecting wires, 3 impedance analyzers, 4 foot pedals, 5 stainless steel hemispheres, 6 glass fibres
Plate, 7 copper foils, 8 electric connectors.
Specific implementation mode
Surgical instrument is as shown in Figure 1, include detecting electrode 1, connecting wire 2, impedance analyzer 3 and foot pedal 4.
Detecting electrode 1 is as shown in Figures 2 and 3, the length of 200mm, among the layer glass fiberboard 6 for being 1mm by thickness
Two width of plating are that 1mm spacing is that 3mm thickness is 0.02mm and the copper foil 7 that is mutually parallel forms (the gap between fiberboard
Blocked by adhesive of medical), the left end of detecting electrode is an inclined surface, and for contacting tissue to be detected, right end is drawn
Electric connector 8 connects impedance analyzer 3.
As shown in Figures 2 and 3, two stainless steel hemispheres 5 are welded on the inclined surface at 1 tip of detecting electrode, two stainless
Steel hemisphere is electrically connected with a copper foil therein respectively, hemisphere diameter 1.5mm, ball surface electroplating gold, and thickness is not less than
0.01mm.Two hemisphere centre of sphere distances are equal to the distance between two copper foils.The tip of detecting electrode 1 can ensure in detection electricity
Blunt separation operation is carried out to tissue while impedance, while the leading edge at inclined surface tip position is arc-shaped, arc radius
For 0.3mm, this can ensure not injury tissue.The group for being needed identification with a hemispheroidal side contacts are welded in operation and being detached
It knits, organization type is judged according to the impedance value of acquisition, and then decide whether to continue blunt separation operation.
The physicochemical property in human body of glass mat 6 used by detecting electrode 1 is stablized, and has very strong corrosion resistance,
Heavy metal ion will not be discharged to generate toxicity or lead to the allergic reaction of human body.Gold is the best metal of biocompatibility, not with
Tissue plays any reaction.
Connecting wire 2 is Shielded Twisted Pair, and per share cross-sectional area is not less than 0.5mm2.
The frequency range that impedance analyzer 3 detects bio-electrical impedance is 200kHz-2MHz, can be set by doctor, and detection misses
Difference is not more than 1%.The sample frequency of impedance value is not less than 5Hz, and added current strength is not higher than 1mA.Due to the surgical device
Tool is doctor's hand-held, and the arm of people inevitably has physiological and trembles, so the impedance bioelectrical measurement value of display is 0.5
The average value of data in second.
The unlatching of impedance measurement function is controlled by foot pedal 4.After stepping on foot pedal 4, impedance analyzer 3 pass through electrode two
A hemisphere provides high frequency weak current to tissue, achievees the purpose that measuring tissue resistance resists.After unclamping foot pedal, impedance analysis
Instrument 3 is stopped.
Claims (1)
1. a kind of intelligent organizational separating operation instrument that can detect bio-electrical impedance, including detecting electrode, connecting wire, impedance
Analyzer and foot pedal, detecting electrode and foot pedal are connect by connecting wire with impedance analyzer, it is characterised in that described
Detecting electrode length is 200mm, including the layer glass fiberboard that thickness is 1mm, plating two among layer glass fiberboard
The copper foil that width is 1mm, spacing 3mm, thickness are 0.02mm and is mutually parallel, the gap between fiberboard is by medical adhesive
Agent blocks, and the tip of detecting electrode is an inclined surface, and two stainless steel hemispheres, two stainless steels are welded on inclined surface
Hemisphere is electrically connected with a copper foil respectively, and the other end of detecting electrode is connected by electric connector and conducting wire with impedance analyzer
It connects；The frequency range of the detection bio-electrical impedance is 200kHz-2MHz, is set by doctor, detection error is not more than 1%；Electricity
The sample frequency of impedance value is not less than 5Hz, and added current strength is not higher than 1mA；The impedance bioelectrical measurement value of display is in 0.5 second
The average value of data.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510755805.1A CN105212932B (en) | 2015-11-06 | 2015-11-06 | A kind of intelligent organizational separating operation instrument that can detect bio-electrical impedance |
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| CN201510755805.1A CN105212932B (en) | 2015-11-06 | 2015-11-06 | A kind of intelligent organizational separating operation instrument that can detect bio-electrical impedance |
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| CN105212932A CN105212932A (en) | 2016-01-06 |
| CN105212932B true CN105212932B (en) | 2018-08-10 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108089060A (en) * | 2018-02-23 | 2018-05-29 | 中国人民解放军第四军医大学 | Noninvasive biological tissue's device for measuring dielectric characteristics |
| CN108553164B (en) * | 2018-03-22 | 2023-12-12 | 高传玉 | Vascular segment impedance detection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US9462960B2 (en) * | 2003-02-21 | 2016-10-11 | 3Dt Holdings, Llc | Impedance devices and methods of using the same to obtain luminal organ measurements |
| CN100584269C (en) * | 2006-12-05 | 2010-01-27 | 重庆博恩富克医疗设备有限公司 | Bio-electrical impedance measuring electrode and measuring method |
| CN101716073B (en) * | 2009-12-09 | 2011-07-20 | 中国科学院半导体研究所 | Invasive inclined needle skin-painless dry electrode device for recording electro-physiological signals for long term |
| WO2011072221A1 (en) * | 2009-12-11 | 2011-06-16 | St. Jude Medical, Atrial Fibrillation Division, Inc. | Systems and methods for determining the likelihood of endocardial barotrauma in tissue during ablation |
| CN101750443A (en) * | 2009-12-31 | 2010-06-23 | 立威生技实业股份有限公司 | Biological detecting test piece electrode, making method thereof, and biological detecting test piece |
| US10156543B2 (en) * | 2012-06-08 | 2018-12-18 | Medtronic Minimed, Inc. | Application of electrochemical impedance spectroscopy in sensor systems, devices, and related methods |
| CN203572879U (en) * | 2013-10-23 | 2014-04-30 | 上海工程技术大学 | Measuring device of surface resistance of flexible sheet material |
| CN204445881U (en) * | 2015-01-08 | 2015-07-08 | 中国医学科学院北京协和医院 | A kind of stimulating electrode for the test of electricity irritation auditory evoked potential |
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