CN103479355A - Minimally invasive surgery tool with non-invasive force and impedance parameter integrated monitoring - Google Patents
Minimally invasive surgery tool with non-invasive force and impedance parameter integrated monitoring Download PDFInfo
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- CN103479355A CN103479355A CN201310470920.5A CN201310470920A CN103479355A CN 103479355 A CN103479355 A CN 103479355A CN 201310470920 A CN201310470920 A CN 201310470920A CN 103479355 A CN103479355 A CN 103479355A
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- invasive surgery
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Abstract
A minimally invasive surgery tool with non-invasive force and impedance parameter integrated monitoring solves the problem that hands of a doctor lose the touch sense under a laparoscope, and tissue can not be recognized, and comprises a stainless steel cylinder, wherein an electrode supporting column is arranged in the stainless steel cylinder and fixed in the cylinder through a plastic plug, and the electrode supporting column is provided with two leading-out wires for being connected with an impedance analysis instrument. The lower end of the electrode supporting column is provided with two rotation shafts which are used for installing semispherical electrodes, the semispherical electrodes are fixed on the supporting column through threads on the rotation shafts which are respectively provided with a semispherical electrode capable of rotating around the rotation shaft, and the semispherical electrodes are connected with the leading-out wires. The minimally invasive surgery tool has the advantages of being noninvasive, low in cost, safe, hazard free, simple in operation, abundant in information, and the like.
Description
Technical field
The invention belongs to technical field of medical instruments, be specifically related to the Minimally Invasive Surgery instrument of a kind of non-intrusion type power and electrical impedance parameter combined monitoring, purpose is to realize the real-time measurement to the anti-parameter of tissue resistance in the peritoneoscope micro-wound surgical operation, helps the doctor to complete the identification of tissue.
Background technology
In order to overcome the shortcoming that under peritoneoscope, doctor's hand feeling is lost, the force transducer of particular design often is used to part and replaces doctor's hand feeling function.But this method is only to judge classification and the pathological state of tissue by the mechanical characteristic of material, because the very few judging nicety rate that causes of quantity of information is lower.So finding the feeling function that the more responsive method of specific force replaces even surmounting doctor's hands is the important channel addressed the above problem.
The bio-electrical impedance technology utilizes various tissues, organ to have different electrical parameters, extracts relevant biomedical information, thus identification different tissues and organ.This technology has the characteristics such as noinvasive, cheapness, safety, nonhazardous, simple to operate and abundant information, is with a wide range of applications.Also the bio-electrical impedance technology is not identified to different soft tissues for micro-wound surgical operation at present.
Summary of the invention
The present invention seeks to solve doctor's hand feeling under peritoneoscope and lose the problem that can't carry out tissue identification, the Minimally Invasive Surgery instrument of a kind of non-intrusion type power and electrical impedance parameter combined monitoring is provided, in order to realize the real-time measurement to the anti-parameter of tissue resistance in the peritoneoscope micro-wound surgical operation, help the doctor to complete the identification of tissue.Judge that with the mechanical characteristic by material only the traditional method of tissue class and pathological state compares, this method has higher recognition accuracy.
The Minimally Invasive Surgery instrument of non-intrusion type power provided by the invention and electrical impedance parameter combined monitoring, comprise a rustless steel cylinder, an electrode supporting post is installed in the rustless steel cylinder, support column is fixed in cylinder by plastic plug, be provided with two on the electrode supporting post for connecting the wire of drawing of impedance analysis instrument, electrode supporting post lower end is equipped with two for the rotating shaft of dome electrode is installed, by the screw thread in rotating shaft, be fixed on support column, be separately installed with a dome electrode that can rotate around the axis in rotating shaft, dome electrode with draw wire and be connected.The spacing of two dome electrode is 4mm.
advantage of the present invention and good effect:
The present invention has the characteristics such as noinvasive, cheapness, safety, nonhazardous, simple to operate and abundant information.
The accompanying drawing explanation
Fig. 1 is the Minimally Invasive Surgery tool construction sketch of non-intrusion type power and electrical impedance parameter combined monitoring.
In figure, 1 draws wire, 2 rustless steel cylinders, 3 three-dimensional force sensors, 4 electrode supporting posts, the rotating shaft of 5 dome electrode, 6 dome electrode, 7 plastic plugs.
The specific embodiment
embodiment 1:
As shown in Figure 1, the Minimally Invasive Surgery instrument of non-intrusion type power provided by the invention and electrical impedance parameter combined monitoring, in figure, 1 is that two of impedance measurement draw wire, for connecting the impedance analysis instrument; The 2nd, the rustless steel cylinder of diameter 12mm; The 3rd, three-dimensional force sensor, the method for designing of sensor, as shown in patent 201110123095.2, and is fixed on sensor on cylinder according to the method shown in patent 201110123095.2; The 4th, the electrode supporting post, support column is fixed on cylinder inner wall by plastic plug 7, and draws wire 1 and is connected; The 5th, the rotating shaft of dome electrode, be fixed on electrode supporting post 4 by screw thread; The 6th, dome electrode, be arranged in rotating shaft 5, can 5 rotate around the shaft two electrode spacing 4mm.
When operative doctor need to be detected tissue, by operation tool along in the aperture insertosome on the patient abdominal cavity, and apply certain power two dome electrode are contacted with tissue surface to be monitored, complete electrical impedance and force measurement, the frequency range of impedance bioelectrical measurement at 200 kHz between 5MHz, final display measurement result.Two dome electrode can make this operation tool be free to slide and to the organ not damaged at tissue surface.
Be located at and organize the impedance value recorded on A to be
r a, the power value that sensor records is
f a; Organizing the impedance value recorded on B to be
r b, the power value that sensor records is
f b.If organizing A and organizing B is same tissue,
r awith
r brelation be:
If organizing A and organizing B is not same tissue, the ratio of the two electrical impedance is also relevant with the electrical conductivity of tissue, does not meet above-mentioned relation.Therefore, the present invention defines the index similarity S of tissue and is
If S approaches 0, can think that organizing A and organizing B is same tissue.S distance 0 is far away, and organizing A and organizing B is not same tissue.
Claims (2)
1. the Minimally Invasive Surgery instrument of a non-intrusion type power and electrical impedance parameter combined monitoring, it is characterized in that, this instrument comprises a rustless steel cylinder, an electrode supporting post is installed in the rustless steel cylinder, support column is fixed in cylinder by plastic plug, be provided with two on the electrode supporting post for connecting the wire of drawing of impedance analysis instrument, electrode supporting post lower end is equipped with two for the rotating shaft of dome electrode is installed, by the screw thread in rotating shaft, be fixed on support column, be separately installed with a dome electrode that can rotate around the axis in rotating shaft, dome electrode with draw wire and be connected.
2. the Minimally Invasive Surgery instrument of non-intrusion type power according to claim 1 and electrical impedance parameter combined monitoring, the spacing that it is characterized in that described two dome electrode is 4mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310470920.5A CN103479355B (en) | 2013-10-11 | 2013-10-11 | Minimally invasive surgery tool with non-invasive force and impedance parameter integrated monitoring |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310470920.5A CN103479355B (en) | 2013-10-11 | 2013-10-11 | Minimally invasive surgery tool with non-invasive force and impedance parameter integrated monitoring |
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| CN103479355A true CN103479355A (en) | 2014-01-01 |
| CN103479355B CN103479355B (en) | 2015-04-22 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104055514A (en) * | 2014-07-04 | 2014-09-24 | 重庆邮电大学 | Minimally invasive supporting type rectum electrical impedance characteristic detecting device |
| 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 |
| CN115500769A (en) * | 2022-09-26 | 2022-12-23 | 武汉中科科理光电技术有限公司 | Electrode endoscope system and using method thereof |
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| US6491647B1 (en) * | 1998-09-23 | 2002-12-10 | Active Signal Technologies, Inc. | Physiological sensing device |
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| US20060079740A1 (en) * | 2000-05-15 | 2006-04-13 | Silver James H | Sensors for detecting substances indicative of stroke, ischemia, or myocardial infarction |
| US7181261B2 (en) * | 2000-05-15 | 2007-02-20 | Silver James H | Implantable, retrievable, thrombus minimizing sensors |
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| CN102151179A (en) * | 2011-05-13 | 2011-08-17 | 南开大学 | Three-dimensional force sensor for minimally invasive surgery robot |
| EP2402830A1 (en) * | 2010-07-02 | 2012-01-04 | Technische Universität Darmstadt | Invention comprising measurement and control system for a number of converters |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6491647B1 (en) * | 1998-09-23 | 2002-12-10 | Active Signal Technologies, Inc. | Physiological sensing device |
| US20060079740A1 (en) * | 2000-05-15 | 2006-04-13 | Silver James H | Sensors for detecting substances indicative of stroke, ischemia, or myocardial infarction |
| US7181261B2 (en) * | 2000-05-15 | 2007-02-20 | Silver James H | Implantable, retrievable, thrombus minimizing sensors |
| US6650931B1 (en) * | 2001-11-14 | 2003-11-18 | Pacesetter, Inc. | System and method of automatically determining the onsets and ends of cardiac events and far-field signals |
| CN101677812A (en) * | 2007-03-23 | 2010-03-24 | 显著外科技术公司 | Surgical device and using method thereof |
| EP2402830A1 (en) * | 2010-07-02 | 2012-01-04 | Technische Universität Darmstadt | Invention comprising measurement and control system for a number of converters |
| CN102151179A (en) * | 2011-05-13 | 2011-08-17 | 南开大学 | Three-dimensional force sensor for minimally invasive surgery robot |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104055514A (en) * | 2014-07-04 | 2014-09-24 | 重庆邮电大学 | Minimally invasive supporting type rectum electrical impedance characteristic detecting device |
| CN104055514B (en) * | 2014-07-04 | 2016-07-27 | 重庆邮电大学 | The brace type rectum electrical impedance characteristics detecting device of Wicresoft |
| 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 |
| CN115500769A (en) * | 2022-09-26 | 2022-12-23 | 武汉中科科理光电技术有限公司 | Electrode endoscope system and using method thereof |
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| CN103479355B (en) | 2015-04-22 |
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