CN109932247A - A kind of detection device and method of Aortic Dissection blood vessel biomechanical property - Google Patents
A kind of detection device and method of Aortic Dissection blood vessel biomechanical property Download PDFInfo
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- 238000001514 detection method Methods 0.000 title claims abstract description 73
- 210000004204 blood vessel Anatomy 0.000 title claims abstract description 52
- 208000002251 Dissecting Aneurysm Diseases 0.000 title claims abstract description 29
- 206010002895 aortic dissection Diseases 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title abstract description 10
- 230000003902 lesion Effects 0.000 claims abstract description 102
- 239000000463 material Substances 0.000 claims abstract description 99
- 238000012360 testing method Methods 0.000 claims abstract description 32
- 230000002146 bilateral effect Effects 0.000 claims abstract description 16
- 238000005259 measurement Methods 0.000 claims description 33
- 238000006073 displacement reaction Methods 0.000 claims description 30
- 230000002792 vascular Effects 0.000 claims description 15
- 210000000709 aorta Anatomy 0.000 claims description 12
- 238000004891 communication Methods 0.000 claims description 6
- 230000006698 induction Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 3
- 230000035945 sensitivity Effects 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims 1
- 239000011229 interlayer Substances 0.000 abstract description 10
- 238000001356 surgical procedure Methods 0.000 abstract description 3
- 238000002224 dissection Methods 0.000 description 7
- 239000008280 blood Substances 0.000 description 5
- 210000004369 blood Anatomy 0.000 description 5
- 238000012913 prioritisation Methods 0.000 description 4
- 206010051077 Post procedural haemorrhage Diseases 0.000 description 3
- 208000037486 Postoperative Hemorrhage Diseases 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 238000002560 therapeutic procedure Methods 0.000 description 2
- 208000025494 Aortic disease Diseases 0.000 description 1
- 241000208340 Araliaceae Species 0.000 description 1
- 208000021479 Cardiovascular injury Diseases 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000010171 animal model Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 239000012620 biological material Substances 0.000 description 1
- 238000003759 clinical diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000001575 pathological effect Effects 0.000 description 1
- 238000010837 poor prognosis Methods 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 238000004393 prognosis Methods 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
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Abstract
The present invention discloses the detection device and method of a kind of Aortic Dissection blood vessel biomechanical property, using tool, there are two the biomechanical properties of the detection device of the Aortic Dissection blood vessel biomechanical property of pulling force handle detection lesion vessels, include that test bilateral elongation strain and corresponding stress and test run through suture due to traction to the cutting stress of lesion vessels wall material generation in the biomechanical property of detection Aortic Dissection blood vessel.The cutting stress that the present invention generates lesion vessels wall material due to traction through suture from test bilateral elongation strain and corresponding stress and test by the blood vessel wall material to lesion, detection and record can be carried out to the biomechanics of the active blood vessel wall of interlayer lesion, and provide accurate, effective guide data for doctor；To provide accurate implementation parameter to the surgical procedure of the active blood vessel wall of interlayer lesion, greatly reduce operation risk.
Description
Technical field
The invention belongs to biomaterial performance the field of test technology, raw more particularly to a kind of Aortic Dissection blood vessel
The detection device and method of object mechanical property.
Background technique
Stanford A type dissection of aorta is the severe crisis of cardiovascular injuries surgery, is controlled if not carrying out operation actively
It treats, the death rate is high, (wherein the death rate is 50% to poor prognosis in 48 hours；In March 90%) death rate is up to.For
Stanford A type dissection of aorta approves always that surgical operation therapy is most effective clinical diagnosis and treatment approach in the world.It is applying
When row Stanford A type dissection of aorta surgical operation therapy, part performer is had found outside Stanford A type dissection of aorta
In section's operation, when being sutured using standard suture to aorta free edge, in suture by free blood vessel edge to side stretching
The tiny suture of the tensile stress and diameter generated in the process runs through after blood vessel in the cutting stress generated with vascular wall contact position
The generation of oozing phenomenon is frequently resulted in, and not expected postoperative hemorrhage can be caused.In the different art of degree oozing of blood, it is postoperative go out
Under the influence of blood, the death rate in Stanford A type dissection of aorta surgical operation art may be up to 25%, and prognosis mala of performing the operation.
To find out its cause, it is to lead to pipe that Aortic Dissection, which causes tube wall tissue's structure change and biomechanical property change,
The major reason that wall brittleness increases, toughness declines.To be reduced in Stanford A type dissection of aorta surgical operation conscientiously because of pipe
Wall biomechanical property changes the oozing of blood caused and postoperative hemorrhage risk, probes into active blood vessel wall biomechanics under pathological condition
The specifically variation of energy is significant.
In existing research, though by establishing animal model or carrying out the different modes such as clinical research, to initiation aorta
The concrete reason of interlayer biomechanical property carries out multi-angle and probes into, and obtains certain achievement.However, there has been no device and method
It can be carried out detection and record come the specific biomechanics of active blood vessel wall to interlayer lesion, it can not be effectively to active blood vessel wall
Biomechanical property measures.
Summary of the invention
To solve the above-mentioned problems, the invention proposes a kind of detections of Aortic Dissection blood vessel biomechanical property
Device and method, by the blood vessel wall material to lesion from test bilateral elongation strain and corresponding stress and test through suture because
It draws to the cutting stress that vascular wall generates, detection and note can be carried out to the biomechanics of the active blood vessel wall of interlayer lesion
Record, provides accurate, effective guide data for doctor；To be provided to the surgical procedure of the active blood vessel wall of interlayer lesion
It is accurate to implement parameter, greatly reduce operation risk.
In order to achieve the above objectives, the technical solution adopted by the present invention is that: a kind of Aortic Dissection blood vessel biomethanics
The detection method of performance, using tool, there are two the detection devices of the Aortic Dissection blood vessel biomechanical property of pulling force handle
The biomechanical property for detecting lesion vessels includes that test is double when detecting the biomechanical property of Aortic Dissection blood vessel
The cutting stress that layback stretching strain and corresponding stress and test generate vascular wall due to traction through suture；
When testing bilateral elongation strain and corresponding stress, comprising steps of
The both ends of lesion vessels wall material are pressed from both sides respectively and are closed between two pulling force handles by S101:
S102 stretches two pulling force handles to both ends are mobile respectively, and lesion vessels wall material generates elongation strain and right
Stress；
S103, by the value of thrust measured on two pulling force handles, is obtained before lesion vessels wall material is also unbroken
Obtain the tensile stress values of lesion vascular wall material；By detecting the relative displacement of two pulling force handles, lesion vessels wall material is obtained
The elongation strain value of material；
Test through suture due to traction to vascular wall generate cutting stress when, comprising steps of
The sutures are vertically penetrated lesion vessels wall material by S201, are pressed from both sides and are closed respectively using two pulling force handles
The both ends of sutures away from lesion vessels wall material same distance at；
Two pulling force handles are placed in parallel by S202；
S203, by two pulling force handles respectively to two sides tethered sliding；
S204 is stitched by the operation after the displacement and traction of the value of thrust, two pulling force handles that measure two pulling force handles
Angle between line and lesion vessels wall material, acquire lesion vessels wall material in the horizontal direction stress, vertical direction stress with
And the size of strain.
Further, according to the principle of balance between two forces, towards two tension of opposite direction in lesion vessels wall material
Equal in magnitude and between two pulling force handles pulling force are equal in magnitude, i.e. by the value of thrust measured on two pulling force handles
For the tensile stress values of lesion vessels wall material；The direction of pull of two pulling force handles is horizontal, and the displacement of two pulling force handles is big
The small elongation length for being numerically equal to lesion vessels wall material, the relative displacement by detecting two pulling force handles are disease
Become the elongation strain value of blood vessel wall material.
Further, in the test bilateral elongation strain and corresponding stress: according to the lesion vessels wall material of acquisition
The tensile stress values and elongation strain value of material, and then draw lesion aorta stress and strain under Bilateral Symmetry pulling force effect and close
It is curve.
Further, test through suture due to traction to lesion vessels wall material generate cutting stress when:
When obtaining stress value, by force resolution rule and balance between two forces rule, pulling force handle is right in the horizontal direction
The active force of lesion vessels wall material is the tension of lesion vessels wall material in the horizontal direction, is the measured value of pulling force handle；
Pulling force handle is in the vertical direction of lesion vessels wall material in the vertical direction to the active force of lesion vessels wall material
Power, be pulling force handle measured value and sutures with lesion vessels wall material angle tangent value product；
When obtaining strain value, the strain value of lesion vessels wall material in the horizontal direction is the shift value of pulling force handle；
The shift value and sutures that the strain value of lesion vessels wall material in vertical direction is pulling force handle are the same as lesion vessels wall material
The product of feed collet angle tangent value.
Further, test through suture due to traction to lesion vessels wall material generate cutting stress when, root
According to strain blood vessel wall material stress value, vertical direction stress value and the strain value, and then drafting level in the horizontal direction of acquisition
Relation curve between direction stress and vertical direction stress value and all directions strain value.
On the other hand, to cooperate above-mentioned detection method, it is based on same invention thinking, the present invention also provides a kind of actives
The detection device of arteries and veins interlayer lesion vessels biomechanical property, including sensitive tensiometer, deviation meter and angle measurement equipment；
The sensitivity tensiometer includes pulling force handle I, pulling force handle II, the quick detection device I of power, quick II and of detection device of power
Central controller；One end of the pulling force handle I is provided with fixture I, one end of the pulling force handle II is provided with fixture II, institute
It states fixture I and fixture II is corresponding；The quick detection device I of power, and the sense of the quick detection device I of power are set in the pulling force handle I
It should hold and be connected to fixture I；The quick detection device II of power, and the induction end of the quick detection device II of power are set in the pulling force handle II
It is connected to fixture II；The signal end of the quick detection device I of the power and the quick detection device II of power passes through connection to central controller；
Institute's displacement measurer is placed in the area of space of II lower section of pulling force handle I and pulling force handle, institute's displacement measurement
The signal end of device is electrically connected with central controller, for measuring the shift value of pulling force handle I and pulling force handle II；
The angle measurement equipment is placed in fixture I and the opposite intermediate lower zone of fixture II, the angle measurement equipment
Signal end is electrically connected with central controller, for folded sutures in measured material I and fixture II between lesion vessels wall material
Angle.
Further, further including sutures, vascular wall generation is cut because of traction through suture in measurement test
When cutting stress, the sutures are penetrated into lesion vessels wall material, are punished at the both ends of sutures away from tube wall same distance
It is not closed using fixture I and the folder of fixture II, two pulling force handles is made to be parallel to each other, angle is 0 ° and is drawn in the horizontal plane.
Further, further including bottom plate, deviation meter and angle measurement equipment, the angle are set on the bottom plate
Heart position in the soleplate is arranged in measuring appliance, is respectively arranged with deviation meter in the two sides of the angle measurement equipment；The pulling force
Handle I and pulling force handle II are placed in the top of institute's displacement measurer；By the company of the sutures and lesion vessels wall material
Disposition is connect in the top of the angle measurement equipment；Institute's displacement measurer and angle measurement equipment are electrically connected with central controller.
Further, institute's displacement measurer is laser displacement sensor, the position of power handle I and pulling force handle II is detected
Shifting value, and shift value is fed back into central controller；The angle measurement equipment is laser angle sensor, detects sutures and lesion
The angle generated between blood vessel wall material, and angle value is fed back into central controller；The quick detection device I of the power and the quick detection dress of power
Set II tension sensor constituted using force-sensitive material.
Further, the central controller includes processor, display and communication interface, the display and communication interface
It is connected to processor, the signal output of strong quick detection device I and the quick detection device II of power is separately connected on the processor
End.
Using the technical program the utility model has the advantages that
Using the vascular wall of aortic disease as material in the present invention, the biomechanics of lesion active blood vessel wall interlayer are detected
Energy；The cutting stress caused for bilateral tensile stress and suture through drawing by detection tube wall, to active blood vessel wall biology
Mechanical property carries out efficient detection；Tube wall is detected simultaneously, and bilateral tensile stress and suture are strained through the cutting that drawing causes
Tolerance status；Detection and record can be carried out to the biomechanics of the active blood vessel wall of interlayer lesion, and provide essence for doctor
Really, the effective biomechanical property guide data of active blood vessel wall interlayer；Accurate implementation parameter is provided for clinical operation,
Operation risk is greatly reduced, is reduced in Stanford A type dissection of aorta surgical operation because tube wall biomechanical property changes
The oozing of blood and postoperative hemorrhage risk of initiation.
Detailed description of the invention
Fig. 1 is a kind of process signal of the detection method of Aortic Dissection blood vessel biomechanical property of the invention
Figure；
Fig. 2 is the schematic illustration that bilateral elongation strain and corresponding stress are tested in the embodiment of the present invention；
Fig. 3 is that the principle for the cutting stress that test generates vascular wall due to traction through suture in the embodiment of the present invention is shown
It is intended to；
Fig. 4 is a kind of structural representation of the detection device of Aortic Dissection blood vessel biomechanical property of the invention
Figure；
Fig. 5 is the structural schematic diagram of insole board of the embodiment of the present invention；
Fig. 6 is the circuit connecting relation figure of central controller in the embodiment of the present invention；
Wherein, 1 is pulling force handle I, and 2 be pulling force handle II, and 3 be the quick detection device I of power, and 4 be the quick detection device II of power, 5
It is fixture I, 6 be fixture II, and 7 be central controller, and 8 be deviation meter, and 9 be angle measurement equipment, and 10 be sutures, and 11 be lesion
Blood vessel wall material, 12 be bottom plate.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention is made into one with reference to the accompanying drawing
Step illustrates.
In the present embodiment, as shown in figure 1 to 3, the invention proposes a kind of Aortic Dissection blood vessel biomethanics for ginseng
The detection method of performance, using tool, there are two the detection devices of the Aortic Dissection blood vessel biomechanical property of pulling force handle
The biomechanical property for detecting lesion vessels includes that test is double when detecting the biomechanical property of Aortic Dissection blood vessel
The cutting stress that layback stretching strain and corresponding stress and test generate vascular wall due to traction through suture；
When testing bilateral elongation strain and corresponding stress, comprising steps of
The both ends of lesion vessels wall material 11 are pressed from both sides respectively and are closed between two pulling force handles by S101:
S102 stretches two pulling force handles to both ends are mobile respectively, lesion vessels wall material 11 generate elongation strain and
Corresponding stress；
S103, before lesion vessels wall material 11 is also unbroken, by the value of thrust measured on two pulling force handles,
Obtain the tensile stress values of lesion vessels wall material 11；By detecting the relative displacement of two pulling force handles, lesion vessels are obtained
The elongation strain value of wall material 11；
Test through suture due to traction to vascular wall generate cutting stress when, comprising steps of
The sutures 10 are vertically penetrated lesion vessels wall material 11, are pressed from both sides respectively using two pulling force handles by S201
Close the both ends in sutures 10 away from 11 same distance of lesion vessels wall material at；
Two pulling force handles are placed in parallel by S202；
S203, by two pulling force handles respectively to two sides tethered sliding；
S204 is stitched by the operation after the displacement and traction of the value of thrust, two pulling force handles that measure two pulling force handles
Angle between line 10 and lesion vessels wall material 11 acquires lesion vessels wall material 11 stress, vertical direction in the horizontal direction
Stress and the size of strain.
As the prioritization scheme of above-described embodiment, according to the principle of balance between two forces, lesion vessels wall material 11 is interior towards phase
Two Tensity sizes of opposite direction are equal and pulling force between two pulling force handles is equal in magnitude, by two pulling force handles
The value of thrust measured is the tensile stress values of lesion vessels wall material 11；The direction of pull of two pulling force handles is horizontal, and two
The displacement of a pulling force handle is numerically equal to the elongation length of lesion vessels wall material 11, by detecting two pulling force hands
The relative displacement of handle is the elongation strain value of lesion vessels wall material 11.
In the test bilateral elongation strain and corresponding stress: being answered according to the stretching of the lesion vessels wall material 11 of acquisition
Force value and elongation strain value, and then draw lesion aorta stress and strain relation curve under Bilateral Symmetry pulling force effect；It will
Curve directly displays out, obtains measurement data convenient for medical staff is more intuitive.
As the prioritization scheme of above-described embodiment, lesion vessels wall material 11 is generated due to traction through suture in test
Cutting stress when:
When obtaining stress value, by force resolution rule and balance between two forces rule, pulling force handle is right in the horizontal direction
The active force of lesion vessels wall material 11 is the tension of lesion vessels wall material 11 in the horizontal direction, is the measurement of pulling force handle
Value；Pulling force handle is in the vertical direction lesion vessels wall material 11 in vertical direction to the active force of lesion vessels wall material 11
On tension, be pulling force handle measured value and sutures 10 with 11 angle tangent value of lesion vessels wall material product；
When obtaining strain value, the strain value of lesion vessels wall material 11 in the horizontal direction is the displacement of pulling force handle
Value；The shift value and sutures 10 that the strain value of lesion vessels wall material 11 in vertical direction is pulling force handle are the same as lesion blood
The product of 11 angle tangent value of pipe wall material.
Test through suture due to traction to lesion vessels wall material 11 generate cutting stress when, according to answering for acquisition
Become blood vessel wall material stress value, vertical direction stress value and strain value in the horizontal direction, so draw horizontal direction stress and
Relation curve between vertical direction stress value and all directions strain value；Curve is directly displayed out, more convenient for medical staff
Add and intuitively obtains measurement data.
For the realization for cooperating the method for the present invention, it is based on identical inventive concept, as shown in Figure 4-Figure 6, the present invention also provides
A kind of detection device of Aortic Dissection blood vessel biomechanical property, including sensitive tensiometer, deviation meter 8 and angle
Spend measuring appliance 9；
The sensitivity tensiometer includes pulling force handle I 1, pulling force handle II 2, the quick detection device I 3 of power, the quick detection device of power
II 4 and central controller 7；One end of the pulling force handle I 1 is provided with fixture I 5, is provided in one end of the pulling force handle II 2
Fixture II 6, the fixture I 5 and fixture II 6 are corresponding；The quick detection device I 3 of power is set in the pulling force handle I 1, and power is quick
The induction end of detection device I 3 is connected to fixture I 5；The quick detection device II 4 of power is set in the pulling force handle II 2, and power is quick
The induction end of detection device II 4 is connected to fixture II 6；The signal end of the power quick detection device I 3 and Li Min detection device II 4
Pass through connection to central controller 7；
Institute's displacement measurer 8 is placed in the area of space of II 2 lower section of pulling force handle I 1 and pulling force handle, and the displacement is surveyed
The signal end of measuring device 8 is electrically connected with central controller 7, for measuring the shift value of pulling force handle I 1 and pulling force handle II 2；
The angle measurement equipment 9 is placed in fixture I 5 and the opposite intermediate lower zone of fixture II 6, the angle measurement equipment
9 signal end is electrically connected with central controller 7, for folded sutures 10 in measured material I 5 and fixture II 6 with lesion vessels wall
Angle between material 11.
Further include sutures 10 as the prioritization scheme of above-described embodiment, runs through suture due to traction in measurement test
To vascular wall generate cutting stress when, the sutures 10 are penetrated into lesion vessels wall material 11, in sutures 10
Both ends away from be utilized respectively at tube wall same distance fixture I 5 and fixture II 6 folder close, so that two pulling force handles is parallel to each other, in level
Angle is 0 ° and is drawn on face.
As the prioritization scheme of above-described embodiment, as shown in figure 5, further including bottom plate 12, position is set on the bottom plate 12
Measurer 8 and angle measurement equipment 9, the angle measurement equipment 9 are arranged in 12 center of bottom plate, in the angle measurement equipment 9
Two sides be respectively arranged with deviation meter 8；The pulling force handle I 1 and pulling force handle II 2 are placed in institute's displacement measurer 8
Top；The junction of the sutures 10 and lesion vessels wall material 11 is placed in the top of the angle measurement equipment 9；It is described
Deviation meter 8 and angle measurement equipment 9 are electrically connected with central controller 7.
Institute's displacement measurer 8 is laser displacement sensor, detects the shift value of power handle I and pulling force handle II 2, and will
Shift value feeds back to central controller 7；The angle measurement equipment 9 is laser angle sensor, detects sutures 10 and lesion vessels
The angle generated between wall material 11, and angle value is fed back into central controller 7；The quick detection device I 3 of the power and Li Min detection dress
Set II 4 tension sensors constituted using force-sensitive material.
The central controller 7 includes processor, display and communication interface, and the display and communication interface are connected to place
Device is managed, the signal output end of strong quick detection device I 3 and Li Min detection device II 4 is separately connected on the processor.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (10)
1. a kind of detection method of Aortic Dissection blood vessel biomechanical property, which is characterized in that using tool, there are two draw
The biomechanical property of the detection device detection lesion vessels of the Aortic Dissection blood vessel biomechanical property of power handle,
It include that test bilateral elongation strain and corresponding stress and test are passed through when detecting the biomechanical property of Aortic Dissection blood vessel
Wear the cutting stress that suture generates vascular wall due to traction；
When testing bilateral elongation strain and corresponding stress, comprising steps of
The both ends of lesion vessels wall material (11) are pressed from both sides respectively and are closed between two pulling force handles by S101:
S102 stretches two pulling force handles to both ends are mobile respectively, and lesion vessels wall material (11) generates elongation strain and right
Stress；
S103, by the value of thrust measured on two pulling force handles, is obtained before lesion vessels wall material (11) is also unbroken
Obtain the tensile stress values of lesion vascular wall material (11)；By detecting the relative displacement of two pulling force handles, lesion vessels are obtained
The elongation strain value of wall material (11)；
Test through suture due to traction to vascular wall generate cutting stress when, comprising steps of
The sutures (10) are vertically penetrated lesion vessels wall material (11), are pressed from both sides respectively using two pulling force handles by S201
Close the both ends in sutures (10) away from lesion vessels wall material (11) same distance at；
Two pulling force handles are placed in parallel by S202；
S203, by two pulling force handles respectively to two sides tethered sliding；
S204 passes through the sutures after the displacement and traction of the value of thrust, two pulling force handles that measure two pulling force handles
(10) angle between lesion vessels wall material (11) acquires lesion vessels wall material (11) stress, vertical in the horizontal direction
Direction stress and the size of strain.
2. a kind of detection method of Aortic Dissection blood vessel biomechanical property according to claim 1, feature
Be, according to the principle of balance between two forces, it is equal towards two Tensity sizes of opposite direction in lesion vessels wall material (11) and
Pulling force between two pulling force handles is equal in magnitude, is lesion vessels by the value of thrust measured on two pulling force handles
The tensile stress values of wall material (11)；The direction of pull of two pulling force handles is horizontal, and the displacement of two pulling force handles is in number
It is equal to the elongation length of lesion vessels wall material (11) in value, the relative displacement by detecting two pulling force handles is lesion
The elongation strain value of blood vessel wall material (11).
3. a kind of detection method of Aortic Dissection blood vessel biomechanical property according to claim 2, feature
It is, in the test bilateral elongation strain and corresponding stress: being answered according to the stretching of the lesion vessels wall material (11) of acquisition
Force value and elongation strain value, and then draw lesion aorta stress and strain relation curve under Bilateral Symmetry pulling force effect.
4. a kind of detection method of Aortic Dissection blood vessel biomechanical property according to claim 1, feature
Be, test through suture due to traction to lesion vessels wall material (11) generate cutting stress when:
When obtaining stress value, by force resolution rule and balance between two forces rule, pulling force handle is in the horizontal direction to lesion
The active force of blood vessel wall material (11) is the tension of lesion vessels wall material (11) in the horizontal direction, is the measurement of pulling force handle
Value；Pulling force handle is in the vertical direction lesion vessels wall material (11) vertical to the active force of lesion vessels wall material (11)
Tension on direction, the measured value for being pulling force handle and sutures (10) are the same as lesion vessels wall material (11) angle tangent value
Product；
When obtaining strain value, the strain value of lesion vessels wall material (11) in the horizontal direction is the shift value of pulling force handle；
The strain value of lesion vessels wall material (11) in vertical direction is the shift value and sutures (10) same lesion of pulling force handle
The product of blood vessel wall material (11) angle tangent value.
5. a kind of detection method of Aortic Dissection blood vessel biomechanical property according to claim 4, feature
Be, test through suture due to traction to lesion vessels wall material (11) generate cutting stress when, according to answering for acquisition
Become blood vessel wall material stress value, vertical direction stress value and strain value in the horizontal direction, so draw horizontal direction stress and
Relation curve between vertical direction stress value and all directions strain value.
6. a kind of detection device of Aortic Dissection blood vessel biomechanical property, which is characterized in that including sensitive tensiometer,
Deviation meter (8) and angle measurement equipment (9)；
The sensitivity tensiometer includes pulling force handle I (1), pulling force handle II (2), the quick detection device I (3) of power, the quick detection dress of power
Set II (4) and central controller (7)；One end of the pulling force handle I (1) is provided with fixture I (5), in the pulling force handle II (2)
One end be provided with fixture II (6), the fixture I (5) and fixture II (6) are corresponding；The setting in the pulling force handle I (1)
The quick detection device I (3) of power, and the induction end of the quick detection device I (3) of power is connected to fixture I (5)；In the pulling force handle II (2)
The middle quick detection device II (4) of setting power, and the induction end of the quick detection device II (4) of power is connected to fixture II (6)；The quick inspection of power
The signal end for surveying device I (3) He Limin detection device II (4) passes through connection to central controller (7)；
Institute's displacement measurer (8) is placed in the area of space below pulling force handle I (1) and pulling force handle II (2), the displacement
The signal end of measuring appliance (8) is electrically connected with central controller (7)；
The angle measurement equipment (9) is placed in fixture I (5) and the opposite intermediate lower zone of fixture II (6), the angle measurement
The signal end of device (9) is electrically connected with central controller (7).
7. a kind of detection device of Aortic Dissection blood vessel biomechanical property according to claim 6, feature
Be, further include sutures (10), measurement test through suture due to traction to vascular wall generate cutting stress when, will
The sutures (10) penetrate lesion vessels wall material (11), punish at the both ends of sutures (10) away from tube wall same distance
Not Li Yong fixture I (5) and fixture II (6) folder close, so that two pulling force handles is parallel to each other, angle is 0 ° and is led in the horizontal plane
Draw.
8. a kind of detection device of Aortic Dissection blood vessel biomechanical property according to claim 7, feature
It is, further includes bottom plate (12), deviation meter (8) and angle measurement equipment (9), the angle is set on the bottom plate (12)
Measuring appliance (9) is arranged in bottom plate (12) center, is respectively arranged with deviation meter in the two sides of the angle measurement equipment (9)
(8)；The pulling force handle I (1) and pulling force handle II (2) are placed in the top of institute's displacement measurer (8)；By the sutures
(10) and the junction of lesion vessels wall material (11) is placed in the tops of the angle measurement equipment (9)；Institute's displacement measurer (8)
It is electrically connected with angle measurement equipment (9) with central controller (7).
9. a kind of detection device of Aortic Dissection blood vessel biomechanical property according to claim 8, feature
It is, institute's displacement measurer (8) is laser displacement sensor, the shift value of power handle I and pulling force handle II (2) is detected, and
Shift value is fed back into central controller (7)；The angle measurement equipment (9) be laser angle sensor, detection sutures (10) with
The angle generated between lesion vessels wall material (11), and angle value is fed back into central controller (7)；The quick detection device I of power
(3) tension sensor that He Limin detection device II (4) uses force-sensitive material to constitute.
10. a kind of detection device of Aortic Dissection blood vessel biomechanical property according to claim 9, feature
It is, the central controller (7) includes processor, display and communication interface, and the display and communication interface are connected to place
Device is managed, the signal output end of strong quick detection device I (3) He Limin detection device II (4) is separately connected on the processor.
Priority Applications (1)
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