CN107328507A - A kind of detection method of electric knife cutting efficiency - Google Patents
A kind of detection method of electric knife cutting efficiency Download PDFInfo
- Publication number
- CN107328507A CN107328507A CN201710320053.5A CN201710320053A CN107328507A CN 107328507 A CN107328507 A CN 107328507A CN 201710320053 A CN201710320053 A CN 201710320053A CN 107328507 A CN107328507 A CN 107328507A
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- Prior art keywords
- electric knife
- cutting
- pen
- testing machine
- friction wear
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
- G01L3/26—Devices for measuring efficiency, i.e. the ratio of power output to power input
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Surgical Instruments (AREA)
Abstract
A kind of detection method of electric knife cutting efficiency, its step is mainly：A, the sample tissue in vitro liver organization being processed into cuboid, and be adhered on the neutral pole plate of electric knife；Neutral pole plate is installed on the sample stage of friction wear testing machine middle and lower part；B, the electric knife-pen of electric knife is clamped in the upper fixture of friction wear testing machine；C, startup electric knife and friction wear testing machine, the distance of the speed and depth for making electric knife-pen to set mobile setting in sample tissue, realize the cutting to sample tissue；Meanwhile, the 2 D force sensor on friction wear testing machine detects the Cutting Drag of electric knife-pen, obtains Cutting Drag and changes over time curve；D, change over time by Cutting Drag curve and calculate Cutting Drag acting, the cutting efficiency of electric knife is obtained according to formula.This method can be measured under different parameters, the cutting efficiency of electric knife, and experimental basis is provided for the selection of clinical operation high frequency electro scalpel surgical parameters.
Description
Technical field
The present invention relates to a kind of detection method of operating theater instruments cutting efficiency.More particularly to a kind of electric knife cutting efficiency
Detection method.
Background technology
Electric knife clinical operation use more and more extensively, be that a kind of substitution traditional operation knife carries out tissue cutting
Operating theater instruments.The huge heat that it is produced when being contacted by main frame to the high-frequency alternating current conveyed on electric knife-pen with tissue is realized pair
The separation and solidification of pathological tissues, so as to reach the purpose of cutting and hemostasis, are especially acted on the biological tissue enriched containing blood volume
Effect becomes apparent.Compared to tradition machinery formula scalpel, electric knife cutting speed is fast, haemostatic effect is good, and to otch
With certain bactericidal action.
During electrotomy, inappropriate parameter is such as used, the power of cutting can be increased, tissue mechanical is pullled,
Cutting and hemostatic treatment effect are not reached；Also result in the fire damage to normal adjacent tissue.So as to influence surgical effect, extend
The recovery cycle of patient.
At present, in clinical operation, electric knife parameter (electrode of different materials, the different speeds of service, different capacity
Deng) selection there is no in clear and definite standard, cutting process an experiences for depending on doctor more, and the electric knife of different model is defeated
Go out mode to vary, how to select, set suitable running parameter, it appears be particularly urgent.It would therefore be highly desirable to which developing one kind is used for
Measure the detection method of the cutting efficiency in electric knife cutting process.
The content of the invention
It is an object of the invention to provide a kind of detection method of electric knife cutting efficiency, this method can measure different parameters
Under, the cutting efficiency in electric knife cutting process provides experimental basis for the selection of clinical operation high frequency electro scalpel surgical parameters,
To improve cutting and haemostatic effect, it is to avoid the machinery of tissue is pullled, more preferable surgical effect is realized.And its testing cost it is low,
As a result accurate, repeatability is high, strong antijamming capability.
The technical scheme adopted by the invention for realizing the object of the invention is：A kind of detection side of electric knife cutting efficiency
Method, its step is：
A, the sample tissue in vitro tissue being processed into cuboid, and be adhered on the neutral pole plate of electric knife,
And lived with cuboid circle；Described neutral pole plate is installed on the sample stage of friction wear testing machine middle and lower part；
B, the electrode of electric knife inserted in electric knife-pen, and electric knife-pen is clamped in the upper fixture of friction wear testing machine
In；
C, startup electric knife, electric knife export the high frequency electric for setting power, described high frequency electric to electric knife-pen
Through electric knife-pen, sample tissue, neutral pole plate and electric knife formation loop；Meanwhile, start friction wear testing machine, fretting wear
Testing machine controls powered electric knife-pen to be downwardly into sample tissue set depth, then the speed for setting electric knife-pen by upper fixture
Degree v moves left and right the distance of setting in sample tissue, realizes the cutting to sample tissue；
While being cut to sample tissue, the 2 D force sensor on friction wear testing machine synchronously detects electric knife-pen
Cutting Drag f, obtains Cutting Drag f with clipping time t change curve；
D, by change curves of the Cutting Drag f with clipping time t, calculate average Cutting Drag fp,WhereinFor Cutting Drag f time interval [0, t] definite integral；And then the cutting efficiency of electric knife is drawn for η, η=1/
fp。
Compared with prior art, the beneficial effects of the invention are as follows：
First, cleverly clinical electric knife and friction wear testing machine are combined, realizes different electric knife output works
Under rate, depth of cut, the operating mode such as cutting speed, electrode type, the measurement of the Cutting Drag of electric knife in the process of running is entered
And draw cutting efficiency of the electric knife under different operating modes.Cutting efficiency is higher, its Cutting Drag is smaller, in clinical operation
Cutting efficiency can be regard as the selection gist of electrotomy parameter, the corresponding electrotomy ginseng of selection high cutting efficiency
Number, can shorten operating time, improve cutting and haemostatic effect, it is to avoid the machinery of tissue is pullled, more preferable surgical effect is realized.
2nd, whole detection operation, setup parameter automatic running, operation letter are pressed by electric knife and friction wear testing machine
It is single, conveniently, and manual operation error is avoided, measurement result is accurate, and repeatability is high, highly reliable.
3rd, test process is to complete to carry out under normal temperature, normal pressure, it is not necessary to the particular surroundings such as vacuum, constant temperature, constant humidity, its
Testing cost is low.One-time detection, leaves one of otch in sample tissue, by sample tissue and its neutral pole plate in fretting wear
Move a certain distance, can be detected again on the sample stage of testing machine, a sample tissue can carry out repeated detection, further
Reduce testing cost.
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings
Brief description of the drawings
Fig. 1 is the attachment structure schematic diagram of present invention method high frequency electro scalpel and friction wear testing machine；
Fig. 2 is Cutting Drag of the electric knife measured with present invention method under different capacity with clipping time
Change curve.
Fig. 3 be the electric knife measured of present invention method under Different electrodes Cutting Drag with clipping time change
Change curve.
Embodiment
Example example
Fig. 1 shows, a kind of embodiment of the invention is, a kind of detection method of electric knife cutting efficiency, its
Step is：
A, the sample tissue 1 in vitro tissue being processed into cuboid, and it is adhered to the neutral pole plate 2a of electric knife 2
On, and framed with cuboid frame 2b；Described neutral pole plate 2a is installed on the sample stage of friction wear testing machine middle and lower part；
B, the electrode of electric knife 2 inserted in electric knife-pen 2c, and electric knife-pen 2c is clamped in friction wear testing machine 3
In upper fixture 3a；
C, startup electric knife 2, electric knife export the high frequency electric for setting power, described high-frequency electrical to electric knife-pen 2c
Flow through electric knife-pen 2c, sample tissue 1, neutrality pole plate 2a and the formation of electric knife 2 loop；Meanwhile, start friction wear testing machine
3, friction wear testing machine 3 controls powered electric knife-pen 2c to be downwardly into the set depth of sample tissue 1 by upper fixture 3a, then makes
Electric knife-pen 2c moves left and right the distance of setting with the speed v set in sample tissue 1, realizes the cutting to sample tissue 1；
While being cut to sample tissue 1, the 2 D force sensor 3b on friction wear testing machine 3 synchronously detects electric knife
2c Cutting Drag f, obtains Cutting Drag f with clipping time t change curve；
D, by change curves of the Cutting Drag f with clipping time t, calculate average Cutting Drag fp,WhereinFor Cutting Drag f time interval [0, t] definite integral；And then the cutting efficiency of electric knife is drawn for η, η=1/
fp。
Fig. 2 is that Cutting Drag of the electric knife measured with embodiment method under different capacity changes over time curve.
Common conditions and parameter during Fig. 2 four tests are：The length of sample tissue is respectively 80mm × 80mm
× 20mm, cutting speed 8mm/s, depth of cut 5mm；Four times test when, electric knife output power be respectively 20W, 40W,
60W、80W.Four Cutting Drags being obtained in Fig. 2 change over time curve；
Calculate and obtain the average Cutting Drag and cutting efficiency of each bar curve and be respectively, power output 20W average cutting
Resistance is 0.36N, and cutting efficiency is 2.8；Power 40W average Cutting Drag is 0.11N, and cutting efficiency is 9.1；Power 60W
Average Cutting Drag be 0.02N, cutting efficiency is 50；Power 80W average Cutting Drag is 0.015N, and cutting efficiency is
66.7；It can be seen that, power 80W cutting efficiency is up to 66.7, power 20W cutting efficiency minimum 2.8.Therefore, cut
Speed 8mm/s is cut, during depth of cut 5mm operation, it is proposed that selection 80W power output, its cutting efficiency highest, operating time
It is most short.
Fig. 3 is that the electric knife measured of present invention method Cutting Drag under Different electrodes changes over time song
Line.
Common conditions and parameter during Fig. 3 test twice are：The length of sample tissue is respectively 200mm × 80mm
× 20mm, the power of electric knife output is 60W, cutting speed 8mm/s, depth of cut 5mm；When testing twice, the electricity of use
Pole is respectively 304 stainless steel electrodes and has 304 stainless steel electrodes (PTFE electrodes) of polytetrafluoroethylene (PTFE) coating layer.Fig. 3 is obtained
In two Cutting Drags change over time curve；
The average Cutting Drag and cutting efficiency that calculating obtains two curves are that being averaged for 304 stainless steel electrodes is cut respectively
It is that the corresponding cutting efficiencies of 0.02N are 50 to cut resistance；The average Cutting Drag of 304 stainless steel electrodes of polytetrafluoroethylene (PTFE) coating layer
For 0.09N, corresponding cutting efficiency is 11.1；Therefore, cutting speed 8mm/s is carried out, depth of cut 5mm, power output are 60W
Operation when, it is proposed that selection 304 stainless steel electrodes, its cutting efficiency highest, operating time are most short.
Claims (1)
1. a kind of detection method of electric knife cutting efficiency, its step is：
A, the sample tissue (1) in vitro tissue being processed into cuboid, and it is adhered to the neutral pole plate of electric knife (2)
On (2a), and framed with cuboid frame (2b)；Described neutral pole plate (2a) is installed on the sample of friction wear testing machine middle and lower part
In sample platform；
B, the electrode of electric knife (2) inserted in electric knife-pen (2c), and electric knife-pen (2c) is clamped in friction wear testing machine
(3) in upper fixture (3a)；
C, startup electric knife (2), electric knife export the high frequency electric for setting power, described high-frequency electrical to electric knife-pen (2c)
Flow through electric knife-pen (2c), sample tissue (1), neutral pole plate (2a) and electric knife (2) formation loop；Meanwhile, start friction mill
Testing machine (3) is damaged, friction wear testing machine (3) controls powered electric knife-pen (2c) to be downwardly into sample sets by upper fixture (3a)
(1) set depth, then the distance for making electric knife-pen (2c) move left and right setting in sample tissue (1) with the speed v of setting are knitted, it is real
Now to the cutting of sample tissue (1)；
While being cut to sample tissue (1), synchronously detection is electric for the 2 D force sensor (3b) on friction wear testing machine (3)
The Cutting Drag f of the writing of indictments, appeals, etc. (2c), obtains Cutting Drag f with clipping time t change curve；
D, by change curves of the Cutting Drag f with clipping time t, calculate average Cutting Drag fp,WhereinFor Cutting Drag f time interval [0, t] definite integral；And then the cutting efficiency of electric knife is drawn for η, η=1/
fp。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710320053.5A CN107328507B (en) | 2017-05-09 | 2017-05-09 | A kind of detection method of electric knife cutting efficiency |
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|---|---|---|---|
| CN201710320053.5A CN107328507B (en) | 2017-05-09 | 2017-05-09 | A kind of detection method of electric knife cutting efficiency |
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| CN107328507A true CN107328507A (en) | 2017-11-07 |
| CN107328507B CN107328507B (en) | 2019-08-02 |
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| CN201710320053.5A Expired - Fee Related CN107328507B (en) | 2017-05-09 | 2017-05-09 | A kind of detection method of electric knife cutting efficiency |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108008227A (en) * | 2018-01-11 | 2018-05-08 | 西南交通大学 | The in-vitro simulated multifunctional testing experimental provision of electric knife and method |
| WO2022082357A1 (en) * | 2020-10-19 | 2022-04-28 | 诺创智能医疗科技(杭州)有限公司 | Surgical instrument force detection mechanism and surgical instrument force detection device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1564506A1 (en) * | 1988-01-08 | 1990-05-15 | Красноярский Филиал Всесоюзного Научно-Исследовательского Института Строительного И Дорожного Машиностроения | Arrangement for measuring forces of resistance to cutting grounds |
| JP2002187048A (en) * | 2000-12-21 | 2002-07-02 | Toshiba Ceramics Co Ltd | Cutting resistance measurement method of machine tool |
| CN102809456A (en) * | 2012-07-11 | 2012-12-05 | 沈阳农业大学 | Device for testing maize stubble breaking resistance |
| CN103969074A (en) * | 2014-05-23 | 2014-08-06 | 吉林大学 | Rotary corn stalk cutting test bed |
| CN203837859U (en) * | 2014-04-25 | 2014-09-17 | 合肥晶弘电器有限公司 | Device used for measuring cutting force |
| CN104127234A (en) * | 2014-07-22 | 2014-11-05 | 西南交通大学 | High-frequency electrotome experiment device |
-
2017
- 2017-05-09 CN CN201710320053.5A patent/CN107328507B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1564506A1 (en) * | 1988-01-08 | 1990-05-15 | Красноярский Филиал Всесоюзного Научно-Исследовательского Института Строительного И Дорожного Машиностроения | Arrangement for measuring forces of resistance to cutting grounds |
| JP2002187048A (en) * | 2000-12-21 | 2002-07-02 | Toshiba Ceramics Co Ltd | Cutting resistance measurement method of machine tool |
| CN102809456A (en) * | 2012-07-11 | 2012-12-05 | 沈阳农业大学 | Device for testing maize stubble breaking resistance |
| CN203837859U (en) * | 2014-04-25 | 2014-09-17 | 合肥晶弘电器有限公司 | Device used for measuring cutting force |
| CN103969074A (en) * | 2014-05-23 | 2014-08-06 | 吉林大学 | Rotary corn stalk cutting test bed |
| CN104127234A (en) * | 2014-07-22 | 2014-11-05 | 西南交通大学 | High-frequency electrotome experiment device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108008227A (en) * | 2018-01-11 | 2018-05-08 | 西南交通大学 | The in-vitro simulated multifunctional testing experimental provision of electric knife and method |
| WO2022082357A1 (en) * | 2020-10-19 | 2022-04-28 | 诺创智能医疗科技(杭州)有限公司 | Surgical instrument force detection mechanism and surgical instrument force detection device |
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| Publication number | Publication date |
|---|---|
| CN107328507B (en) | 2019-08-02 |
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