CN107928722A - A kind of hydraulic control method of thorax cavity retractor - Google Patents
A kind of hydraulic control method of thorax cavity retractor Download PDFInfo
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- CN107928722A CN107928722A CN201711222215.8A CN201711222215A CN107928722A CN 107928722 A CN107928722 A CN 107928722A CN 201711222215 A CN201711222215 A CN 201711222215A CN 107928722 A CN107928722 A CN 107928722A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/001—Servomotor systems with fluidic control
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Abstract
The invention discloses a kind of hydraulic control method of thorax cavity retractor, comprise the following steps：Step 1, start hydraulic system, inputs initial value；Step 2, initialized；Step 3, hydraulic cylinder feed hydraulic oil and constantly increase the pressure value in the second fluid pressure line into telescopic hydraulic system, realize the distracting action of thorax cavity retractor；Step 4, central processing module, which are sent, stops telescope signal 004, and hydraulic cylinder stops to telescopic hydraulic system feed hydraulic oil.It is high that the hydraulic control method of thoracic cavity dilator provided by the invention mainly solves traditional thoracic cavity dilator requirement, it is time-consuming longer, strut the problem of process is not easy to control, by setting hydraulic system on thorax cavity retractor, operated using hydraulic system come intelligent control thoracic cavity dilator, the time-consuming of whole operation process is significantly shortened, reached the good effect of precision operation, using effect is good, and very big convenience is provided for thoracic surgery.
Description
Technical field
The present invention relates to surgical operating instrument technical field, more particularly to a kind of hydraulic control method of thorax cavity retractor.
Background technology
In thoracic surgery, often need to be strutted the opening between rib cage with thorax cavity retractor, performed the operation with facilitating,
At present, the structure of traditional thoracic cavity dilator includes the structures such as fixed arm, moving arm, plate page, swinging handle, rack, passes through control
Moving arm processed sliding to control the opening Chengdu of thoracic cavity dilator on rack, thus achievees the purpose that to strut rib cage.Due to
Fixed arm and moving arm are parallel to each other, and in order to form V-type opening, plate page is preferably bonded rib cage, prevent plate page
Front and rear edges damage rib cage, generally in plate page and the adjusting bolt that arm junction is provided with adjustable-angle is strutted, by turning
Dynamic adjusting bolt comes the angle of inclination of adjustable plate page, and then realizes above-mentioned function.But in actual use, traditional thoracic cavity
Dilator is there are inconvenience, and since whole process relies on manual operation, the strut size and angle of thoracic cavity dilator need user
Rule of thumb judge, this just requires the operation skill of user very high, even if meeting the requirements, only judges to strut by experience
Size and angle, it is clear that be that secondary injury easily can be caused to patient, influence entirely to perform the operation there are the possibility that experience is judged by accident
Journey, meanwhile, during entirely rib cage is strutted, the time of cost is longer, causes the thoracic surgery time longer, is unfavorable for whole
A surgical procedure is higher to the physical fitness requirement of operative doctor.
The content of the invention
The goal of the invention of the present invention is：For above-mentioned problem, there is provided a kind of hydraulic control of thorax cavity retractor
Method, by setting hydraulic system on thorax cavity retractor, using hydraulic system come the operation of intelligent control thorax cavity retractor
Journey, it is high to solve traditional thoracic cavity dilator requirement, it is time-consuming longer, strut the problem of process is not easy to control.
The technical solution adopted by the present invention is as follows：A kind of hydraulic control method of thorax cavity retractor, is included in thoracic cavity traction
The step of hydraulic system is set on device, it is characterised in that comprise the following steps：
Step 1, the hydraulic system that starts, signaling control unit are started to work, and initial threshold, hydraulic pressure are set by signal input module
Pad threshold value and hydraulic telescopic arm threshold value, signal input module is by the initial threshold of input, hydraulic die cushion threshold value and hydraulic telescopic arm threshold
Value is delivered in central processing module and is stored；
After the completion of step 2, step 1, by signal input module input initialization signal 001, hydraulic cylinder receives initial signal 001
After initialized so that there are hydraulic oil in fluid pressure line；
After the completion of step 3, step 2, thorax cavity retractor being moved to needs and retracts part, hand holds the handle of thorax cavity retractor,
Plate page, which is inserted into, to be needed to retract part, then performs signal 003 by the way that signal input module input is flexible, hydraulic cylinder receives flexible
After performing signal 003, feed hydraulic oil and constantly increase the pressure value in the second fluid pressure line, hydraulic pressure into telescopic hydraulic system
Telescopic arm promotes movement to strut movement, realizes the distracting action of thorax cavity retractor；
Step 4, reach hydraulic telescopic arm threshold value when the pressure value in the second fluid pressure line that second pressure sensor detects in real time
When, central processing module, which is sent, stops telescope signal 004, after hydraulic cylinder receives stopping telescope signal 004, stops to telescopic hydraulic
System feed hydraulic oil, and maintain the pressure in the second fluid pressure line；
After the completion of step 5, step 4, the pressure in the second fluid pressure line that second pressure sensor detects in real time reaches stationary value
When, central processing module sends angular adjustment and performs signal 005, after hydraulic cylinder receiving angle adjusts execution signal 005, to angle
Hydraulic system feed hydraulic oil is adjusted, and constantly increases the pressure value in the first fluid pressure line, hydraulic die cushion starts outwards to expand, and
Constantly increase the contact area with contacting object, realize hydraulic die cushion with contacting the complete fitting of object；
Step 6, when the pressure value in the first fluid pressure line that first pressure sensor detects in real time reaches hydraulic die cushion threshold value, in
Centre processing module, which is sent, stops Regulate signal 006, after hydraulic cylinder receives stopping Regulate signal 006, stops to angular adjustment hydraulic pressure
System feed hydraulic oil, and the pressure in the first fluid pressure line is maintained, the whole distracting action of thoracic cavity dilator is completed；
Step 7, when needing to remove thoracic cavity dilator, input pressure release signal 007, hydraulic cylinder passes through center by signal input module
After processing module receives pressure release signal 007, hydraulic cylinder is by fluid pressure line respectively to angular adjustment hydraulic system and telescopic hydraulic
System carries out pressure release；
Step 8, when not using thoracic cavity dilator, pass through signal input module input termination signal 008, hydraulic cylinder receive eventually
Pressure release is carried out to angular adjustment hydraulic system and telescopic hydraulic system respectively by fluid pressure line after stop signal 008 and recycles hydraulic pressure
Oil, when the pressure value that first pressure sensor and second pressure sensor detect is 0, hydraulic cylinder stopping action, hydraulic pressure dress
Put 7 and be in state to be shut down, at this time, power off.
Further, in order to preferably implement the present invention, in step 2, the concrete operations of initialization are：Hydraulic cylinder receives just
Liquid is conveyed into the fluid pressure line of angular adjustment hydraulic system and telescopic hydraulic system by fluid pressure line respectively after beginning signal 001
Pressure oil, first pressure sensor and second pressure sensor detect the pressure value in fluid pressure line in real time, and pressure value is converted
Central processing module is transferred to for pressure signal to be handled, when first pressure sensor and the pressure of second pressure sensor transmissions
When force signal reaches the initial threshold of setting, central processing module, which is sent, maintains pressure signal 002, and hydraulic cylinder, which receives, maintains pressure
After signal 002, stop to angular adjustment hydraulic system and telescopic hydraulic system feed hydraulic oil, and maintain the first fluid pressure line and
Pressure in second fluid pressure line, at this time, mobile support open arms can be free to slide on travelling arm.
Further, for the ease of pressure release, in step 7, the concrete operations that hydraulic cylinder carries out pressure release are：Hydraulic cylinder is received and let out
After pressing signal 007, pressure release is carried out to angular adjustment hydraulic system and telescopic hydraulic system respectively by fluid pressure line, treats the first pressure
When the pressure value of force snesor detection reaches hydraulic die cushion threshold value again, central processing module, which is sent, stops pressure release signal 101；Treat
When the pressure value of two pressure sensors detection reaches hydraulic telescopic arm threshold value again, central processing module, which is sent, stops pressure release signal
102, hydraulic cylinder receives respectively stops pressure release signal 101 with after stopping pressure release signal 102, stops respectively to angular adjustment hydraulic pressure system
System and telescopic hydraulic system carry out pressure release, and maintain the pressure in the first fluid pressure line and the second fluid pressure line, in case thoracic cavity is led
Open reusing for device.
Further, in step 1, initial threshold is set as 1-10N, and hydraulic die cushion threshold value is set as 50-300N, hydraulically extensible
Arm threshold value is set as 200-1000N.
In conclusion by adopting the above-described technical solution, the beneficial effects of the invention are as follows：A kind of chest provided by the invention
The hydraulic control method of chamber dilator, mainly solves traditional thoracic cavity dilator requirement height, time-consuming longer, the process of strutting is not easy
The problem of control, by setting hydraulic system on thorax cavity retractor, come intelligent control and thoracic cavity support is adjusted using hydraulic system
The deviation angle for strutting size and plate page of device is opened, the time-consuming of whole operation process is significantly shortened, has reached precision operation
Good effect, using effect is good, it is entirely avoided the deficiency present in traditional thoracic cavity dilator, provides for thoracic surgery
It is greatly convenient, operating time is shortened, practical value is high.
Brief description of the drawings
Fig. 1 is a kind of thoracic cavity dilator three dimensional structure diagram of the present invention；
Fig. 2 is the plate page structure schematic diagram of the present invention；
Fig. 3 is the hydraulic telescopic arm section structure diagram of the present invention；
Fig. 4 is the HYDRAULIC CONTROL SYSTEM structure chart of the present invention.
Marked in figure：1 is rigid staybolt open arms, and 2 be mobile support open arms, and 3 be plate page, and 4 be travelling arm, and 5 be hydraulic telescopic arm,
6 be hydraulic pressure conveying arm, and 7 be hydraulic device, and 8 be supporting rod, and 9 be hydraulic die cushion, and 10 be handle.
Embodiment
Below in conjunction with the accompanying drawings, the present invention is described in detail.
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, it is right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
As shown in Figure 1 to Figure 3, a kind of thorax cavity retractor, including the rigid staybolt open arms 1 and mobile support open arms 2 being arranged side by side,
It is respectively arranged on the plate page 3 of 2 one end of rigid staybolt open arms 1 and mobile support open arms, rigid staybolt open arms 1 one end and slip away from plate page 3
Arm 4 is vertically fixedly connected, and the one end of mobile support open arms 2 away from plate page 3 is slidably connected with travelling arm 4, rigid staybolt open arms 1 and movement
Strut and telescopic hydraulic telescopic arm 5 is equipped between arm 2, the both ends of hydraulic telescopic arm 5 are connected to rigid staybolt open arms 1 and move
Dynamic to strut on arm 2, the one end of rigid staybolt open arms 1 away from plate page 3 is connected by hydraulic pressure conveying arm 6 with hydraulic device 7, hydraulically extensible
Arm 5 is connected by fluid pressure line with hydraulic device 7, hydraulic telescopic arm 5 be used to controlling rigid staybolt open arms 1 and mobile support open arms 2 it
Between distance.
Hydraulic device 7 controls the flexible of hydraulic telescopic arm 5 by fluid pressure line, fixed when hydraulic telescopic arm 5 stretches
The spacing strutted between arm 1 and mobile support open arms 2 is extended, and is achieved in distracted function.At this time, if in fluid pressure line
Design of pressure is located at a threshold value（Threshold value is generally 300-1000N）, when the pressure in fluid pressure line reaches threshold value, stop
The pressure pressurizeed simultaneously in stable hydraulic pipeline, then can abandon by Conventional wisdom to control the defects of strutting size, pass through hydraulic pressure
To provide power, realize automatically opening up for thoracic cavity dilator, thus solve the problems, such as to take during the dilator use of thoracic cavity it is longer,
Meanwhile the mode of hydraulic pressure pressure supply smoothly can apply pressure to rib cage, the skill of pressure is provided by rack compared to traditional
Art means, the mode of hydraulic pressure pressure supply can be better protected from rib cage compression overload, prevent rib cage damage fracture, user can be preferably
Judge the maximum weighted scope for whether having reached rib cage, the process of strutting is more easy to be controlled, and contributes to operation to be smoothed out.
Further, in order to which the hydraulic telescopic arm 5 of the present invention is better achieved, hydraulic telescopic arm 5 is set on travelling arm 4
As shown in figures 1 and 3, hydraulic telescopic arm 5 includes retractable sack, and retractable sack is the ring-segment-like structure with Telescopic, retractable sack
One end connected with fluid pressure line, the other end of retractable sack is cecum, is full of hydraulic oil in retractable sack.
Further, in order to prevent during strutting, mobile support open arms 2 is inclined relative to the generation of rigid staybolt open arms 1 angle
Move and influence the execution of distracting action, supporting rod 8 is equipped between rigid staybolt open arms 1 and mobile support open arms 2, supporting rod 8, which is fixed, to be connected
The middle part of rigid staybolt open arms 1 is connected on, mobile support open arms 2 can be free to slide on supporting rod 8.
Further, angle is bonded for preferably adjustment plate page 3 and rib cage, prevents 3 pairs of rib cages of plate page from causing to damage,
The working face of plate page 3 is equipped with hydraulic die cushion 9, and hydraulic die cushion 9 includes compliance cavity（It is not drawn into figure）, it is externally swollen when being pressurized in compliance cavity
Swollen, compliance cavity is used to accommodate hydraulic oil, and compliance cavity is connected by fluid pressure line with hydraulic device 7.
Hydraulic device, which leads to 7, to be crossed fluid pressure lines and feed hydraulic oil and provides pressure at the same time into hydraulic die cushion 9, and hydraulic die cushion 9 is subject to
Outwards expanded from the compressing of hydraulic oil, thus promote hydraulic die cushion 9 to expand and be bonded tighter with the contact area of rib cage, into
And realizing can also be such that plate page 3 is bonded completely with rib cage without the angle of adjustment plate page 3, the fiber crops of manual adjustment plate page 3 are avoided
Tired, fitting process is simpler, and fitting effect is more preferable.
In one embodiment of the invention, the surface reflection of rigid staybolt open arms 1 and mobile support open arms 2 and shadow in order to prevent
Frosted pad pasting is pasted with 2 surfaces of the sight of sound user, rigid staybolt open arms 1 and mobile support open arms（It is not drawn into figure）.
Further, hydraulic pressure conveying arm 5 includes coiled pipe（It is not drawn into figure）, fluid pressure line, liquid are disposed with coiled pipe
Pressure conveying arm 5 is used to protect fluid pressure line.
Further, in order to which hydraulic control thoracic cavity dilator is better achieved, present invention additionally comprises a kind of thorax cavity retractor
Hydraulic system, the hydraulic system of thorax cavity retractor includes hydraulic device 7, hydraulic cylinder, angular adjustment liquid is equipped with hydraulic device 7
Pressure system and telescopic hydraulic system, as shown in figure 4, in Fig. 4, horizontal line represents fluid pressure line, arrow line represents signal transmssion line.
Angular adjustment hydraulic system and telescopic hydraulic system pass through signal control by signaling control unit connection liquid cylinder pressure, hydraulic cylinder respectively
Unit processed controls angular adjustment hydraulic system and telescopic hydraulic system respectively, and angular adjustment hydraulic system is pressed by hydraulic die cushion 9, first
Force snesor and the first fluid pressure line composition, first pressure sensor is installed in the first fluid pressure line, for detecting the first liquid
Pressure in pressure pipe road, one end connection hydraulic die cushion 9 of the first fluid pressure line, its other end pass through hydraulic pressure conveying arm 6 and hydraulic cylinder
Connection, first pressure sensor are connected by conducting wire or signal transmssion line with signaling control unit.Telescopic hydraulic system is by hydraulic pressure
Telescopic arm 5, second pressure sensor and the second fluid pressure line composition, second pressure sensor are installed in the second fluid pressure line,
For detecting the pressure of the second fluid pressure line, one end connection hydraulic telescopic arm 5 of the second fluid pressure line, its other end passes through hydraulic pressure
Conveying arm 6 is connected with hydraulic cylinder, and second pressure sensor is connected by conducting wire or signal transmssion line with signaling control unit.Signal
Control unit includes signal input module, central processing module and signal output module, central processing module and signal output mould
Block is installed on hydraulic cylinder, and signal input module is installed on the shell of hydraulic device 7, signal input module and central processing mould
Block is connected by conducting wire or signal transmssion line, for conveying external signal to central processing module, signal input module its can
To be keyboard input devices or remote controller input equipment；Central processing module passes through signal transmssion line and hydraulic pressure
Cylinder connects, and signal input module, first pressure sensor and second pressure sensor are connected with central processing module, centre
It can be CPU or PLC to manage module, for handling from exterior various signals and reacting；Signal output module includes liquid
Cylinder pressure, for performing the signal sent from central processing module, signaling control unit is controlled respectively by signal output module
Angular adjustment hydraulic system and telescopic hydraulic system.
Further, present invention additionally comprises a kind of hydraulic control method of thorax cavity retractor, comprise the following steps：
Step 1, the hydraulic system that starts, signaling control unit are started to work, and initial threshold is set by signal input module（Initially
Threshold value can be set as 1-10N, be preferably 3N）, hydraulic die cushion threshold value（Hydraulic die cushion threshold value can be set as 50-300N, be preferably
100N）With hydraulic telescopic arm threshold value（Hydraulic telescopic arm threshold value can be set as 200-1000N, be preferably 500N）, signal input
The initial threshold of input, hydraulic die cushion threshold value and hydraulic telescopic arm threshold value are delivered in central processing module and are stored by module；
（Indicate：The reference value provided in above-mentioned bracket is estimated by adult's standard）
After the completion of step 2, step 1, by signal input module input initialization signal 001, hydraulic cylinder receives initial signal 001
Hydraulic oil is conveyed into the fluid pressure line of angular adjustment hydraulic system and telescopic hydraulic system by fluid pressure line respectively afterwards, first
Pressure sensor and second pressure sensor detect the pressure value in fluid pressure line in real time, and pressure value is converted into pressure signal
It is transferred to central processing module to be handled, when the pressure signal of first pressure sensor and second pressure sensor transmissions reaches
During the initial threshold of setting, central processing module, which is sent, maintains pressure signal 002, after hydraulic cylinder receives maintenance pressure signal 002,
Stop to angular adjustment hydraulic system and telescopic hydraulic system feed hydraulic oil, and maintain the first fluid pressure line and the second hydraulic tube
Pressure in road, at this time, mobile support open arms 2 can be free to slide on travelling arm 4；
Thorax cavity retractor, is moved to needs traction part by step 3, and hand holds the handle of thorax cavity retractor, and plate page 3, which is inserted into, to be needed
Part is retracted, flexible execution signal 003 is then inputted by signal input module, hydraulic cylinder reception is flexible to perform signal 003
Afterwards, feed hydraulic oil and the pressure value in the second fluid pressure line is constantly increased into telescopic hydraulic system, hydraulic telescopic arm promotes
Mobile support open arms 2 moves, and realizes the distracting action of thorax cavity retractor；
Step 4, reach hydraulic telescopic arm threshold value when the pressure value in the second fluid pressure line that second pressure sensor detects in real time
When, central processing module, which is sent, stops telescope signal 004, after hydraulic cylinder receives stopping telescope signal 004, stops to telescopic hydraulic
System feed hydraulic oil, and maintain the pressure in the second fluid pressure line；
After the completion of step 5, step 4, the pressure in the second fluid pressure line that second pressure sensor detects in real time reaches stationary value
When, central processing module sends angular adjustment and performs signal 005, after hydraulic cylinder receiving angle adjusts execution signal 005, to angle
Hydraulic system feed hydraulic oil is adjusted, and constantly increases the pressure value in the first fluid pressure line, hydraulic die cushion 9 starts outwards to expand,
And constantly increase the contact area with contacting object, realize hydraulic die cushion 9 with contacting the complete fitting of object；
Step 6, when the pressure value in the first fluid pressure line that first pressure sensor detects in real time reaches hydraulic die cushion threshold value, in
Centre processing module, which is sent, stops Regulate signal 006, after hydraulic cylinder receives stopping Regulate signal 006, stops to angular adjustment hydraulic pressure
System feed hydraulic oil, and the pressure in the first fluid pressure line is maintained, the whole distracting action of thoracic cavity dilator is completed；
Step 7, when needing to remove thoracic cavity dilator, input pressure release signal 007, hydraulic cylinder passes through center by signal input module
After processing module receives pressure release signal 007, by fluid pressure line respectively to angular adjustment hydraulic system and telescopic hydraulic system into
Row pressure release, when the pressure value of first pressure sensor detection reaches hydraulic die cushion threshold value again, central processing module sends stopping
Pressure release signal 101；When the pressure value of second pressure sensor detection reaches hydraulic telescopic arm threshold value again, central processing module
Send and stop pressure release signal 102, hydraulic cylinder receives respectively stops pressure release signal 101 with after stopping pressure release signal 102, stops respectively
Pressure release is carried out to angular adjustment hydraulic system and telescopic hydraulic system, and is maintained in the first fluid pressure line and the second fluid pressure line
Pressure, in case reusing；
Step 8, when not using thoracic cavity dilator, pass through signal input module input termination signal 008, hydraulic cylinder receive eventually
Pressure release is carried out to angular adjustment hydraulic system and telescopic hydraulic system respectively by fluid pressure line after stop signal 008 and recycles hydraulic pressure
Oil, when the pressure value that first pressure sensor and second pressure sensor detect is 0, hydraulic cylinder stopping action, hydraulic pressure dress
Put 7 and be in state to be shut down, at this time, power off.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should all be included in the protection scope of the present invention.
Claims (4)
1. a kind of hydraulic control method of thorax cavity retractor, is included on thorax cavity retractor the step of setting hydraulic system, it is special
Sign is, comprises the following steps：
Step 1, the hydraulic system that starts, signaling control unit are started to work, and initial threshold, hydraulic pressure are set by signal input module
Pad threshold value and hydraulic telescopic arm threshold value, signal input module is by the initial threshold of input, hydraulic die cushion threshold value and hydraulic telescopic arm threshold
Value is delivered in central processing module and is stored；
After the completion of step 2, step 1, by signal input module input initialization signal 001, hydraulic cylinder receives initial signal 001
After initialized so that there are hydraulic oil in fluid pressure line；
After the completion of step 3, step 2, thorax cavity retractor being moved to needs and retracts part, hand holds the handle of thorax cavity retractor,
Plate page, which is inserted into, to be needed to retract part, then performs signal 003 by the way that signal input module input is flexible, hydraulic cylinder receives flexible
After performing signal 003, feed hydraulic oil and constantly increase the pressure value in the second fluid pressure line, hydraulic pressure into telescopic hydraulic system
Telescopic arm promotes movement to strut movement, realizes the distracting action of thorax cavity retractor；
Step 4, reach hydraulic telescopic arm threshold value when the pressure value in the second fluid pressure line that second pressure sensor detects in real time
When, central processing module, which is sent, stops telescope signal 004, after hydraulic cylinder receives stopping telescope signal 004, stops to telescopic hydraulic
System feed hydraulic oil, and maintain the pressure in the second fluid pressure line；
After the completion of step 5, step 4, the pressure in the second fluid pressure line that second pressure sensor detects in real time reaches stationary value
When, central processing module sends angular adjustment and performs signal 005, after hydraulic cylinder receiving angle adjusts execution signal 005, to angle
Hydraulic system feed hydraulic oil is adjusted, and constantly increases the pressure value in the first fluid pressure line, hydraulic die cushion starts outwards to expand, and
Constantly increase the contact area with contacting object, realize hydraulic die cushion with contacting the complete fitting of object；
Step 6, when the pressure value in the first fluid pressure line that first pressure sensor detects in real time reaches hydraulic die cushion threshold value, in
Centre processing module, which is sent, stops Regulate signal 006, after hydraulic cylinder receives stopping Regulate signal 006, stops to angular adjustment hydraulic pressure
System feed hydraulic oil, and the pressure in the first fluid pressure line is maintained, the whole distracting action of thoracic cavity dilator is completed；
Step 7, when needing to remove thoracic cavity dilator, input pressure release signal 007, hydraulic cylinder passes through center by signal input module
After processing module receives pressure release signal 007, hydraulic cylinder is by fluid pressure line respectively to angular adjustment hydraulic system and telescopic hydraulic
System carries out pressure release；
Step 8, when not using thoracic cavity dilator, pass through signal input module input termination signal 008, hydraulic cylinder receive eventually
Pressure release is carried out to angular adjustment hydraulic system and telescopic hydraulic system respectively by fluid pressure line after stop signal 008 and recycles hydraulic pressure
Oil, when the pressure value that first pressure sensor and second pressure sensor detect is 0, hydraulic cylinder stopping action, hydraulic pressure dress
Put 7 and be in state to be shut down, at this time, power off.
2. the hydraulic control method of thorax cavity retractor as claimed in claim 1, it is characterised in that in step 2, initialization
Concrete operations are：By fluid pressure line respectively to angular adjustment hydraulic system and flexible liquid after hydraulic cylinder reception initial signal 001
Conveying hydraulic oil in the fluid pressure line of pressure system, first pressure sensor and second pressure sensor are detected in fluid pressure line in real time
Pressure value, and pressure value be converted into pressure signal be transferred to central processing module and handled, when first pressure sensor
When reaching the initial threshold of setting with the pressure signal of second pressure sensor transmissions, central processing module, which is sent, maintains pressure letter
Number 002, hydraulic cylinder receives maintain pressure signal 002 after, stop supplying liquor charging to angular adjustment hydraulic system and telescopic hydraulic system
Pressure oil, and the pressure in the first fluid pressure line and the second fluid pressure line is maintained, at this time, mobile support open arms can be on travelling arm freely
Slide.
3. the hydraulic control method of thorax cavity retractor as claimed in claim 1, it is characterised in that in step 7, hydraulic cylinder into
The concrete operations of row pressure release are：After hydraulic cylinder receives pressure release signal 007, by fluid pressure line respectively to angular adjustment hydraulic system
Pressure release is carried out with telescopic hydraulic system, when the pressure value of first pressure sensor detection reaches hydraulic die cushion threshold value again, center
Processing module, which is sent, stops pressure release signal 101；Treat that the pressure value of second pressure sensor detection reaches hydraulic telescopic arm threshold again
During value, central processing module, which is sent, stops pressure release signal 102, and hydraulic cylinder receives respectively stops pressure release signal 101 and stopping pressure release
After signal 102, stop carrying out pressure release to angular adjustment hydraulic system and telescopic hydraulic system respectively, and maintain the first fluid pressure line
With the pressure in the second fluid pressure line, in case thorax cavity retractor reuses.
4. the hydraulic control method of thorax cavity retractor as claimed in claim 1, it is characterised in that in step 1, initial threshold
It is set as 1-10N, hydraulic die cushion threshold value is set as 50-300N, and hydraulic telescopic arm threshold value is set as 200-1000N.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711222215.8A CN107928722A (en) | 2017-11-29 | 2017-11-29 | A kind of hydraulic control method of thorax cavity retractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711222215.8A CN107928722A (en) | 2017-11-29 | 2017-11-29 | A kind of hydraulic control method of thorax cavity retractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107928722A true CN107928722A (en) | 2018-04-20 |
Family
ID=61949446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711222215.8A Withdrawn CN107928722A (en) | 2017-11-29 | 2017-11-29 | A kind of hydraulic control method of thorax cavity retractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107928722A (en) |
-
2017
- 2017-11-29 CN CN201711222215.8A patent/CN107928722A/en not_active Withdrawn
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