CN106092721B - The synchronous testing device of the orthotopic fenestration bursting of fabric overlay film and tear resistance - Google Patents
The synchronous testing device of the orthotopic fenestration bursting of fabric overlay film and tear resistance Download PDFInfo
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- CN106092721B CN106092721B CN201610363952.9A CN201610363952A CN106092721B CN 106092721 B CN106092721 B CN 106092721B CN 201610363952 A CN201610363952 A CN 201610363952A CN 106092721 B CN106092721 B CN 106092721B
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- 239000004744 fabric Substances 0.000 title claims abstract description 90
- 230000009172 bursting Effects 0.000 title claims abstract description 39
- 238000012360 testing method Methods 0.000 title claims abstract description 35
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 23
- 239000000523 sample Substances 0.000 claims abstract description 117
- 238000000034 method Methods 0.000 claims abstract description 7
- 230000008859 change Effects 0.000 claims description 22
- 230000008569 process Effects 0.000 claims description 2
- 230000007704 transition Effects 0.000 claims description 2
- 238000004088 simulation Methods 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 abstract description 3
- 238000000338 in vitro Methods 0.000 abstract description 3
- 238000005457 optimization Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 9
- 238000006073 displacement reaction Methods 0.000 description 8
- 238000011065 in-situ storage Methods 0.000 description 7
- 238000011160 research Methods 0.000 description 5
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 210000001367 artery Anatomy 0.000 description 3
- 206010002329 Aneurysm Diseases 0.000 description 2
- 210000000709 aorta Anatomy 0.000 description 2
- 208000007474 aortic aneurysm Diseases 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000002560 therapeutic procedure Methods 0.000 description 2
- 206010028980 Neoplasm Diseases 0.000 description 1
- 210000003484 anatomy Anatomy 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 230000008081 blood perfusion Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 201000004356 excessive tearing Diseases 0.000 description 1
- 238000009940 knitting Methods 0.000 description 1
- 238000013332 literature search Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000002406 microsurgery Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000012956 testing procedure Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/006—Crack, flaws, fracture or rupture
- G01N2203/0067—Fracture or rupture
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0278—Thin specimens
- G01N2203/0282—Two dimensional, e.g. tapes, webs, sheets, strips, disks or membranes
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention relates to a kind of orthotopic fenestration burstings of fabric overlay film and the synchronous testing device of tear resistance, variable diameters probe assembly, the clamping assembly of variable diameters probe and the clamping assembly of sample including bursting and tear resistance test.Three kinds of components are configured in multifunctional fabric strength and elongation instrument, can carry out the bursting of orthotopic fenestration fabric overlay film and the synchronism detection of tear resistance after replacing the collet of the instrument.The invention also discloses the corresponding orthotopic fenestration synchronous detecting methods of the bursting of fabric overlay film and tear resistance.Test device structure of the invention is simple, authentic and valid convenient for operation, test result.The present invention compensates for the blank of the bursting of external analogue simulation orthotopic fenestration fabric overlay film and tear resistance quantitatively characterizing at present, on-line testing can be carried out to its mechanical property while simulation fabric overlay film carries out orthotopic fenestration in vitro, for orthotopic fenestration fabric structure of film and performance optimization, improve more scientific foundation be provided.
Description
Technical field
The present invention relates to a kind of for testing the synchronous testing device of the orthotopic fenestration bursting of fabric overlay film and tear resistance.
Background technique
The advantages of endovascular repair is small with its wound, it is fast to restore, few intercurrent disease, has evolved into aortic aneurysm class disease
Mainstream therapies.Therefore key instrument used in the therapy --- overlay film frame is also grown rapidly.Overlay film frame be by
Fabric overlay film and metallic support, the medical instrument being connected as one through silk sutures.However for sudden aorta
Tumor wound, knurl anatomic form are complicated, aortic aneurysm is adjoined for the refractory aneurysms patient of important branch artery, above-mentioned tradition
Overlay film frame no longer be applicable in.But with the development of Endovascular, " the orthotopic fenestration technology " of overlay film frame is solved
State problem.The orthotopic fenestration of so-called overlay film frame, i.e., after discharging overlay film frame at refractory aneurysms, to overlay film frame face point
The position of branch arterial accent carries out pricker puncture and balloon inflation to fabric overlay film using windowing instrument, so that in aorta
Blood flow can flow into bifurcated artery through opening, to ensure the blood perfusion of important branch artery.The advantages of technology, is
It can be used for Emergency Assistance, at present the research hotspot in terms of American-European countries already becomes overlay film frame windowing.
Although clinical research shows working well for the middle or short term of orthotopic fenestration art, its long-term results is still uncertain,
Surgeon concerns the durability of overlay film frame after windowing, and has clinical report: the unstable of orthotopic fenestration may lead
Cause the failure of overlay film frame.In view of the worry for overlay film frame after orthotopic fenestration that clinicing aspect proposes, experts and scholars' expansion
A series of researchs, it is indicated that after orthotopic fenestration overlay film frame is primarily present three problems: the excessive tearing of fabric overlay film, opening
The yarn at hole edge dissipates side, and the unstable caused metallic support fracture of windowing.It is therefore desirable to orthotopic fenestration with knitting
While object overlay film carries out external emulation windowing, the stress condition of fabric overlay film during orthotopic fenestration is tested, to evaluate original position
The windowing endurance quality of fabric overlay film, and then theoretical and technical support is provided with fabric overlay film for optimization orthotopic fenestration.
It is punctured before this via pricker when overlay film frame opens a window in situ, to form tiny pinprick on fabric overlay film
Hole, followed by sacculus is placed in pinprick hole, make Different Tear Test to target aperture size by the expansion of sacculus.It is whole
During a, fabric overlay film was acted on by the bursting of pricker before this, followed by was acted on by the circumferential expansion of sacculus and caused and knit
The tearing of object overlay film.And existing mechanics test device can not also accomplish that on-line testing fabric covers in dynamic in-situ windowing-process
The bursting of film and Tear strength.And single bursting or tearing only are carried out to the overlay film frame fabric overlay film after orthotopic fenestration and surveyed
Examination cannot really reflect and evaluate bursting and the tear resistance of orthotopic fenestration fabric overlay film, and it is even more impossible to accurate evaluations in vitro
The endurance quality of fabric overlay film.By literature search, at home and abroad there is no the mechanics test devices about simulation orthotopic fenestration
Research, and the country, in terms of bursting, the research of China Patent Publication No. CN104568579A and CN204630819U are only for biography
The design of the sample aid device of system textile, can not be applicable in and really reflect the complicated applied force mistake of orthotopic fenestration fabric overlay film
Journey.
Summary of the invention
The purpose of the present invention is: design the synchronism detection dress of a kind of bursting of orthotopic fenestration fabric overlay film and tear resistance
It sets, collection pricker punctures and balloon inflation acts on one, and on-line synchronous is surveyed while simulating the windowing of fabric overlay film dynamic in-situ
Its bursting and tear resistance are tried, provides the external mechanics evaluation more precisely emulated with the endurance quality of fabric overlay film for orthotopic fenestration
With characterizing method.
In order to achieve the above object, the technical solution of the present invention is to provide a kind of fabric overlay film bursting of orthotopic fenestration with
The synchronous testing device of tear resistance characterized by comprising
Variable diameters probe assembly, variable diameters probe assembly include the clamping part and pricker portion positioned at both ends, clamping part and thorn
Pass through the transition of Diameter Gradual Change portion, from pricker portion direction to clamping part direction, the diameter in Diameter Gradual Change portion between needle portion
It is gradually increased, for being connected and fixed with multi-functional strength and elongation instrument, pricker portion is used to pierce through fabric overlay film to be tested clamping part；
Component one is clamped for fix fabric overlay film to be tested, clamping component one includes that middle part has hollowed out area
Upper specimen holder, lower specimen holder, upper clamping device and lower clamping device, upper specimen holder will be to be tested after fixing up and down with lower specimen holder
Fabric overlay film clamp therebetween, to form specimen holder, then by upper clamping device and lower clamping device it is fixed up and down after
Specimen holder is clamped, after upper specimen holder, lower specimen holder, upper clamping device and lower clamping device are fixed, upper specimen holder, lower sample
Hollowed out area on folder, upper clamping device and lower clamping device is located on same axis, so that stroke channel is formed, by multi-functional
Strength and elongation instrument drives variable diameters probe assembly in stroke channel along the top-down linear movement in stroke channel, thus by pricker
Fabric overlay film to be tested is pierced through, then sacculus is simulated by the movement in the fabric overlay film of Diameter Gradual Change portion after piercing in portion
Expansion process.
Preferably, the upper specimen holder is engaged by boss with groove up and down with the lower specimen holder, the upper specimen holder
With the lower specimen holder up and down be engaged after be fixed on the lower clamping device, the lower clamping device be connected through a screw thread again and
The upper clamping device is fixed up and down.
Preferably, the variable diameters probe assembly is connected and fixed via clamping component two with the multi-functional strength and elongation instrument.
Preferably, the Diameter Gradual Change portion of the variable diameters probe assembly is in coniform.
Preferably, the end in the pricker portion of the variable diameters probe assembly is needle point, the blade angle α of needle point is 15 °~
30°。
Preferably, the range of the diameter of phi 1 of the clamping part is 6-12mm, and the range of the diameter of phi 2 in the pricker portion is
0.7-1.2mm, the range of the length in the Diameter Gradual Change portion are 10-20mm.
Preferably, at least 3 are distributed along the circumference on the outer circumference surface in the Diameter Gradual Change portion of the variable diameters probe assembly
Piece blade, every blade are axially extended until taking the whole length in the Diameter Gradual Change portion.
Preferably, it is distributed along the circumference at least three jag on the outer circumference surface of the upper specimen holder, in the lower examination
Sample folder outer circumference surface on be distributed along the circumference with quantity mark line one identical with jag, when the upper specimen holder with it is described under
After specimen holder is fixed up and down, each jag is directed at a mark line one.
Preferably, it is equipped in one side of the lower specimen holder towards the upper specimen holder for determining the blade and institute
State the graduation mark one of the opposite cutting angle between the warp thread of fabric overlay film to be tested；
And/or it is equipped in the one side of the upper clamping device outwardly for determining that the blade is knitted with described to be tested
The graduation mark two of opposite cutting angle between the warp thread of object overlay film.
Preferably, the label of quantity is respectively equipped on the outer circumference surface of the upper clamping device and the lower clamping device
Line two and mark line three, after the upper clamping device and the lower clamping device fixed up and down, mark line two and mark line three
Consistency from top to bottom.
Compared with the prior art, the advantages of the present invention are as follows:
1, the variable diameters probe assembly in the present invention can be with analogue simulation orthotopic fenestration to the top of overlay film frame fabric overlay film
The broken synergistic effect with tearing；
2, the present invention in variable diameters probe assembly can be applied to multi-functional strength and elongation instrument, can precisely evaluate online with
The loading in composite of overlay film frame fabric overlay film during characterization orthotopic fenestration；
3, the clamping assembly of sample can be precisely controlled the cutting angle between blade and fabric overlay film warp thread in the present invention, can
More careful anatomy influencing mechanism of the orthotopic fenestration between fabric structure of film and mechanical property.
Detailed description of the invention
Fig. 1 is the schematic diagram of the synchronous testing device of orthotopic fenestration fabric overlay film bursting and tear resistance；
Fig. 2 a is a kind of schematic diagram of variable diameters probe；
Fig. 2 b is a kind of main view of variable diameters probe；
Fig. 2 c is a kind of top view of variable diameters probe；
Fig. 3 a is the schematic diagram of another variable diameters probe；
Fig. 3 b is the main view of another variable diameters probe；
Fig. 3 c is the top view of another variable diameters probe；
In Fig. 2 a to Fig. 2 c, Fig. 3 a to Fig. 3 c, 201/202 is respectively two kinds of variable diameters probes, and shape is coniform.
201a/202a, 201b/202b and 201c/202c be respectively the clamping zone of two kinds of variable diameters probes, Diameter Gradual Change region and
Pricker region, 202d are the 4 blade 202d equally distributed in the axial direction of variable diameters probe 202, are respectively labeled as 202d-N,
202d-S, 202d-W and 202d-E；Φ 1 is the upper end diameter (i.e. the diameter of clamping zone) in Diameter Gradual Change region, and Φ 2 is diameter
The lower end diameter (i.e. the diameter in pricker region) of gradation zone；L1, L2 and L3 be successively clamping zone, Diameter Gradual Change region and
The height in pricker region；α is the needle point blade angle of pricker.
Fig. 4 a is the clamping device schematic diagram of variable diameters probe；
Fig. 4 b is the cross-sectional view of the clamping device of variable diameters probe；
Fig. 4 c is the top view of the clamping device of variable diameters probe；
In Fig. 4 a to Fig. 4 c, 301 be the clamping device of variable diameters probe, and Φ 1 is the diameter of variable diameters probe clamping zone.
Fig. 5 a-1 is the front schematic view of upper clamping device；
Fig. 5 a-2 is the reverse side schematic diagram of upper clamping device；
Fig. 5 b-1 is the front schematic view of upper specimen holder；
Fig. 5 b-2 is the reverse side schematic diagram of upper specimen holder；
Fig. 5 c-1 is the front schematic view of lower specimen holder；
Fig. 5 c-2 is the reverse side schematic diagram of lower specimen holder；
Fig. 5 d-1 is the front schematic view of lower clamping device；
Fig. 5 d-2 is the reverse side schematic diagram of lower clamping device；
In Fig. 5 a-1 to Fig. 5 d-2,401 be upper specimen holder, 402 be lower specimen holder, 501 be upper clamping device, 502 be under
Clamping device；401a and 401b is that the surfaces externally and internally, 402a and 402b of upper specimen holder are the interior appearance of lower specimen holder respectively respectively
Face；It is the lower clamping of specimen holder respectively that 501a/501b, which is the surfaces externally and internally of the upper clamping device of specimen holder, 502a/502b respectively,
The surfaces externally and internally of device；401c/402c is the boss and groove of the inner surface of upper and lower specimen holder, 401e/402e and 501e/ respectively
502e is the hollowed out area of upper specimen holder, lower specimen holder, upper clamping device and lower clamping device respectively, for limiting blade perpendicular
The upward cutting path of histogram；401d is 4 jags that upper 401 side of specimen holder is uniformly distributed circumferentially, and 502d is sample
Equally distributed 4 grooves of 502 threaded port of lower clamping device of folder, and 401d can be mutually twisted with 502d；501c and
502c is 4 vertical mark lines of the side of clamping device 501 and 502 of upper and lower specimen holder respectively；On 402f and 501f is respectively
The surface angle scale of the upper clamping device of specimen holder and specimen holder, 402g are 4 vertical labels of lower 402 side of specimen holder
Line.
Fig. 6 a and Fig. 6 b are the warp thread of sample and the opposite clamping position schematic diagram of specimen holder, in Fig. 6 a and Fig. 6 b, examination
The warp thread of sample 601 and sample 602 and lower specimen holder 402 are in the clamping position at 0 ° of angle and 45° angle respectively.
Specific embodiment
In order to make the present invention more obvious and understandable, hereby with preferred embodiment, and attached drawing is cooperated to be described in detail below.It should be understood that
These examples are only for illustrating the present invention and are not intended to limit the scope of the present invention.In addition, it should also be understood that, having read the present invention
After the content of instruction, those skilled in the art can make various modifications or changes to the present invention, and such equivalent forms are equally fallen
In the scope of the appended claims of the present application.
In conjunction with drawing, a kind of orthotopic fenestration synchronism detection of the bursting of fabric overlay film and tear resistance dress provided by the invention
Set variable diameters probe assembly, the clamping assembly 301 of variable diameters probe and the clamping of sample including bursting and tear resistance test
Component 401/402 and 501/502.Wherein, the clamping assembly 401/402 and 501/502 of sample includes upper specimen holder 401, lower examination
Sample presss from both sides the lower clamping device 502 of 402, the upper clamping device 501 of specimen holder, specimen holder.And variable diameters probe assembly and variable diameters
The clamping assembly 301 of probe is configured in multifunctional fabric strength and elongation instrument, can be imitated in vitro after replacing the collet of the instrument
The orthotopic fenestration of true simulation fabric overlay film and bursting and tear resistance are tested.
Variable diameters probe assembly uses the variable diameters probe assembly 201 as shown in Fig. 2 a to Fig. 2 c, or using such as Fig. 3 a
To variable diameters probe assembly 202 shown in Fig. 3 c.Two distinct types of variable diameters probe assembly includes three regions, successively
It is clamping zone 201a/202a, Diameter Gradual Change region 201b/202b and pricker region 201c/202c.Variable diameters probe assembly
201/202 Diameter Gradual Change region 201b/202b can be coniform.The Diameter Gradual Change area of 201/202 component of variable diameters probe
The range of domain 201b/202b length is 10-20mm, and the range of upper end diameter Φ 1 (i.e. the diameter of clamping zone) is 6-12mm, under
The range for holding diameter of phi 2 (i.e. the diameter in pricker region) is 0.7-1.2mm.The needle point blade angle α of pricker region 201c/202c
It is 15 ° -30 °.In variable diameters probe assembly 202, coniform Diameter Gradual Change region 202b is axial uniformly to have 4 blades
202d, respectively 202d-N, 202d-S, 202d-W and 202d-E.Blade 202d be microsurgery blade, width 0.25mm,
Blade thickness is 0.4mm, and length is the length in Diameter Gradual Change region, is equivalent to 4 pieces of cutting blades of Cutting balloon.
In the present embodiment, upper specimen holder 401 and lower specimen holder 402 can be mutually twisted (i.e. 401c is engaged with 402c),
And the graduated scale 402f on the surface 402a can be used for determining cutting between blade 202d-N and institute's clamping fabric overlay film warp thread relatively
Chamfer degree；The lower clamping device 502 of specimen holder can be mutually twisted (i.e. 502d is engaged with 401d) with upper specimen holder 401, and logical
The alignment for crossing 402g and 401d may insure that the axial equally distributed 4 blade 202d of variable diameters probe assembly 202 are passed through
The hollowed out area 501e/401e/402e/502e of the clamping assembly of sample.
Upper clamping device 501 and lower clamping device 502 respectively have 4 vertical mark lines of black in the position side of occlusion
501c and 502c can be used as the alignment index line when clamping device up and down 501 and 502 maintenance of determining specimen holder 401/402；
And the graduated scale 501f on upper 501 surface of clamping device is determined for blade 202d-N and presss from both sides the phase between fabric overlay film warp thread
To 0 ° -90 ° of cutting angle.
The diameter of upper specimen holder 401 and lower specimen holder 402 is 40mm, and the diameter range of centre bore is 10-20mm；Upper dress
Clamp device 501, lower clamping device 502 and upper specimen holder 401, lower specimen holder 402 match, and the diameter range of centre bore is
10-20mm；Upper clamping device 501, upper specimen holder 401, lower specimen holder 402, lower clamping device 502 hollowed out area 501e/
The length of 401e/402e/502e is 2.5mm, and width is 0.6mm.
The fabric overlay film specification limit tested is 20mm × 20mm-30mm × 30mm.
Resulting test result: the hole area that opens a window is 6.0-15.0mm2, opening through to maximum tearing displacement be
5.0-12.0mm, the tearing displacement of opening broadwise maximum are 3.0-12.0mm, bursting strength 28-40N, and maximum Tear strength is
20-35N, average tear strength is 15-28N.
The present invention also provides a kind of above-mentioned synchronous detecting method of the orthotopic fenestration bursting of fabric overlay film and tear resistance,
It is characterized in that, testing procedure are as follows:
The first step installs variable diameters probe assembly.By pin, first 201/202 one end of variable diameters probe assembly is connected
And it is fixed to the lower end of the clamping assembly 301 of variable diameters probe assembly；Then variable diameters probe assembly 201/202 will be connected with
The upper end of clamping assembly 301 is fixed on multi-functional strength and elongation instrument.
Second step installs sample.It straightens as used through probe assembly 201, then fabric overlay film is placed in lower specimen holder 402
On；Then upper specimen holder 401 is placed on thereon and is put into the lower clamping device 502 of specimen holder, and ensure the protrusion of specimen holder
In the groove 502d for holding the lower clamping device 502 of 401d insertion specimen holder；The upper clamping device 501 of specimen holder is screwed again；Finally,
The clamping device up and down 501/502 of specimen holder is fixed on to the bottom of multi-functional strength and elongation instrument.
The variable diameters probe assembly 202 for such as using band blade, between adjustable blade 202d-N and fabric overlay film warp thread
Cutting angle, i.e., fabric overlay film is placed on the inner surface 402a of lower specimen holder 402, adjustment warp thread make itself and lower specimen holder
Corresponding angle is overlapped (i.e. cutting angle) on the graduated scale 402f of 402 inner surfaces；Then specimen holder 401 is covered, and is ensured
The jag 401d of upper specimen holder 401 is aligned (the i.e. hollowed out area of specimen holder with the vertical mark line 402g of lower specimen holder 402
401e/402e alignment)；Upper and lower specimen holder 401/402 is put into the lower sample clamp device 502 of specimen holder again, and ensures sample
(the i.e. hollowed out area of specimen holder in the groove 502d of the lower clamping device 502 of the jag 401d insertion specimen holder of folder 401
401e/402e is aligned with the hollowed out area 502e of the clamping device of specimen holder)；The upper clamping device 501 of specimen holder is screwed again, and
Ensure vertical mark line 501c/502c alignment (the i.e. vacancy section of specimen holder of 501/502 side of clamping device up and down of specimen holder
The hollowed out area 501e/502e of the clamping device of domain 401e/402e and specimen holder is aligned)；Meanwhile passing through upper clamping device 501
The graduated scale 501f on surface determines cutting between the blade 202d-N and fabric overlay film warp thread of variable diameters probe assembly 202 again
Chamfer degree；Finally, the clamping device up and down 501/502 of specimen holder to be fixed on to the bottom of multi-functional strength and elongation instrument.
Third step starts to test.The same of dynamic in-situ windowing is carried out to fabric overlay film on fabric multifunctional strength and elongation instrument
When, on-line synchronous test orthotopic fenestration during fabric overlay film bursting and tear resistance.
The present invention is further illustrated below with specific data and specific embodiment.
Embodiment 1
This embodiment is become as shown in Fig. 4 a to Fig. 4 c using variable diameters probe assembly 201 shown in Fig. 2 a to Fig. 2 c
The clamping device 301 of probe diameter component, and 401/402 He of specimen holder up and down of the sample as shown in Fig. 5 a-1 to Fig. 5 d-2
Clamping device 501/502 up and down of specimen holder.
The diameter of the clamping zone for the variable diameters probe assembly 201 that this embodiment uses is 12mm, length 30mm；Directly
The upper end diameter of diameter gradation zone is 12mm, lower end diameter 0.7mm, and length 15mm, i.e. taper are 20.6 °；And pricker
The diameter in region is 0.7mm, length 10mm；The needle point blade angle of pricker is 15 °.Specimen holder 401/402 up and down of sample
Diameter with upper and lower 501/502 centre bore of clamping device is 20mm, and sample is that the flat fabric of commercialization A brand overlay film frame covers
Film, specification are 30mm × 30mm.
The first step installs variable diameters probe assembly.By pin, first 201 one end of variable diameters probe assembly is connected and consolidated
Surely the lower end of the clamping assembly 301 of variable diameters probe assembly is arrived；Then the clamping assembly of variable diameters probe assembly 201 will be connected with
301 upper end is fixed on multi-functional strength and elongation instrument.
Second step installs sample.Using straightening through probe assembly 201, fabric overlay film is placed on lower specimen holder 402；
Then upper specimen holder 401 is placed on thereon and is put into the lower clamping device 502 of specimen holder, and ensure the jag of specimen holder
401d is embedded in the groove 502d of the lower clamping device 502 of specimen holder；The upper clamping device 501 of specimen holder is screwed again；Finally, will
The clamping device up and down 501/502 of specimen holder is fixed on the bottom of multi-functional strength and elongation instrument.
Third step starts to test.The same of dynamic in-situ windowing is carried out to fabric overlay film on fabric multifunctional strength and elongation instrument
When, on-line synchronous test orthotopic fenestration during fabric overlay film bursting and tear resistance.
The area of the tearing hole of the flat fabric overlay film of commercial A brand overlay film frame is 13.8mm2, through being torn to maximum
Displacement is 10.2mm, and the tearing displacement of broadwise maximum is 11.6mm, and bursting strength 30.29N, maximum Tear strength is 32.12N,
Average tear strength is 25.38N.
Embodiment 2
This embodiment uses the variable diameters probe assembly 202 as shown in Fig. 3 a to Fig. 3 b, as shown in Fig. 4 a to Fig. 4 c
The clamping device 301 of variable diameters probe assembly, the specimen holder up and down 401/402 of the sample as shown in Fig. 5 a-1 to Fig. 5 d-2 and examination
The clamping device up and down 501/502 of sample folder and the clamping angle of sample 601 as shown in Figure 6 a.
The diameter of the clamping zone for the variable diameters probe assembly 202 that this embodiment uses is 8mm, length 30mm；Directly
The upper end diameter of diameter gradation zone is 8mm, lower end diameter 0.9mm, and length 20mm, i.e. taper are 10.1 °；And pricker area
The diameter in domain is 0.9mm, length 10mm；The needle point blade angle of pricker is 17 °.401/402 He of clamping assembly of sample
The diameter of 501/502 centre bore is 15mm, and sample is the rectangle plane fabric overlay film of commercialization E brand overlay film frame, and specification is
25mm×25mm。
The first step installs variable diameters probe assembly.By pin, first 202 one end of variable diameters probe assembly is connected and consolidated
Surely the lower end of the clamping assembly 301 of variable diameters probe assembly is arrived；Then the clamping assembly of variable diameters probe assembly 202 will be connected with
301 upper end is fixed on multi-functional strength and elongation instrument.
Second step installs sample.Using the variable diameters probe assembly 202 of band blade, adjusts blade 202d-N and covered with fabric
Fabric overlay film is placed on the inner surface 402a of lower specimen holder 402 by the cutting angle between film warp thread to 0 °, adjust warp thread
It is overlapped it with 0 ° on the graduated scale 402f of lower 402 inner surface of specimen holder；Then specimen holder 401 is covered, and ensures examination
The jag 401d of sample folder 401 is aligned with the vertical mark line 402g of lower specimen holder 402；Upper and lower specimen holder 401/402 is put again
Enter the lower sample clamp device 502 of specimen holder, and ensures the lower clamping device of the jag 401d insertion specimen holder of specimen holder 401
In 502 groove 502d；The upper clamping device 501 of specimen holder is screwed again, and ensures clamping device 501/502 up and down of specimen holder
The vertical mark line 501c/502c of side is aligned；Meanwhile by the graduated scale 501f on upper 501 surface of clamping device, determine again
0 ° of cutting angle between the blade 202d-N and fabric overlay film warp thread of variable diameters probe assembly 202；Finally, by the upper of specimen holder
Lower clamping device 501/502 is fixed on the bottom of multi-functional strength and elongation instrument.
Third step starts to test.The same of dynamic in-situ windowing is carried out to fabric overlay film on fabric multifunctional strength and elongation instrument
When, on-line synchronous test orthotopic fenestration during fabric overlay film bursting and tear resistance.
The area of the tearing hole of the flat fabric overlay film of commercial E brand overlay film frame is 8.7mm2, through being torn to maximum
Displacement is 6.4mm, and the tearing displacement of broadwise maximum is 4.5mm, and bursting strength 32.05N, maximum Tear strength is 26.82N, is put down
Equal Tear strength is 22.08N.
Embodiment 3
This embodiment uses the variable diameters probe assembly 202 as shown in Fig. 3 a to Fig. 3 b, as shown in Fig. 4 a to Fig. 4 c
The clamping device 301 of variable diameters probe assembly, the specimen holder up and down 401/402 of the sample as shown in Fig. 5 a-1 to Fig. 5 d-2 and examination
The clamping device up and down 501/502 of sample folder and the clamping angle of sample 602 as shown in Figure 6 b.
The diameter of the clamping zone for the variable diameters probe assembly 202 that this embodiment uses is 6mm, length 30mm；Directly
The upper end diameter of diameter gradation zone is 6mm, lower end diameter 1.2mm, and length 10mm, i.e. taper are 13.5 °；And pricker area
The diameter in domain is 1.2mm, length 10mm；The needle point blade angle of pricker is 30 °.401/402 He of clamping assembly of sample
The diameter of 501/502 centre bore is 10mm, and sample is the rectangle plane fabric overlay film of commercialization E brand overlay film frame, and specification is
20mm×20mm。
The first step installs variable diameters probe assembly.By pin, first 202 one end of variable diameters probe assembly is connected and consolidated
Surely the lower end of the clamping assembly 301 of variable diameters probe assembly is arrived；Then the clamping assembly of variable diameters probe assembly 202 will be connected with
301 upper end is fixed on multi-functional strength and elongation instrument.
Second step installs sample.Using the variable diameters probe assembly 202 of band blade, adjusts blade 202d-N and covered with fabric
Fabric overlay film is placed on the inner surface 402a of lower specimen holder 402 by the cutting angle between film warp thread to 45 °, adjusts warp thread
It is overlapped it with 45 ° on the graduated scale 402f of lower 402 inner surface of specimen holder；Then specimen holder 401 is covered, and ensures examination
The jag 401d of sample folder 401 is aligned with the vertical mark line 402g of lower specimen holder 402；Upper and lower specimen holder 401/402 is put again
Enter the lower sample clamp device 502 of specimen holder, and ensures the lower clamping device of the jag 401d insertion specimen holder of specimen holder 401
In 502 groove 502d；The upper clamping device 501 of specimen holder is screwed again, and ensures clamping device 501/502 up and down of specimen holder
The vertical mark line 501c/502c of side is aligned；Meanwhile by the graduated scale 501f on upper 501 surface of clamping device, determine again
45 ° of cutting angle between the blade 202d-N and fabric overlay film warp thread of variable diameters probe assembly 202；Finally, by specimen holder
Upper and lower clamping device 501/502 is fixed on the bottom of multi-functional strength and elongation instrument.
Third step starts to test.The same of dynamic in-situ windowing is carried out to fabric overlay film on fabric multifunctional strength and elongation instrument
When, on-line synchronous test orthotopic fenestration during fabric overlay film bursting and tear resistance.
The area of the tearing hole of the flat fabric overlay film of commercial E brand overlay film frame is 9.2mm2, through being torn to maximum
Displacement is 7.3mm, and the tearing displacement of broadwise maximum is 5.2mm, and bursting strength 36.52N, maximum Tear strength is 23.38N, is put down
Equal Tear strength is 18.37N.
Claims (10)
1. a kind of orthotopic fenestration synchronous testing device of the bursting of fabric overlay film and tear resistance characterized by comprising
Variable diameters probe assembly, variable diameters probe assembly include the clamping part and pricker portion positioned at both ends, clamping part and pricker portion
Between by the transition of Diameter Gradual Change portion, from pricker portion direction to clamping part direction, the diameter in Diameter Gradual Change portion is gradually
Increase, for being connected and fixed with multi-functional strength and elongation instrument, pricker portion is used to pierce through fabric overlay film to be tested clamping part；
Component one is clamped for fix fabric overlay film to be tested, clamping component one includes the upper examination that middle part has hollowed out area
Sample folder, lower specimen holder, upper clamping device and lower clamping device, upper specimen holder knit to be tested after fixing up and down with lower specimen holder
Object overlay film clamps therebetween, to form specimen holder, then will try after being fixed up and down by upper clamping device and lower clamping device
Sample folder clamps, after upper specimen holder, lower specimen holder, upper clamping device and lower clamping device are fixed, upper specimen holder, lower specimen holder,
Hollowed out area on upper clamping device and lower clamping device is located on same axis, so that stroke channel is formed, by multi-functional strong
Elongation instrument drives variable diameters probe assembly to move linearly from top to bottom in stroke channel along stroke channel, thus will by pricker portion
Fabric overlay film to be tested pierces through, then simulates balloon inflation by the movement in the fabric overlay film of Diameter Gradual Change portion after piercing
Process；
Variable diameters probe assembly one end is connected and fixed to the lower end of the clamping assembly of variable diameters probe assembly by pin.
2. a kind of synchronous testing device of the orthotopic fenestration bursting of fabric overlay film and tear resistance as described in claim 1,
Be characterized in that, the upper specimen holder and the lower specimen holder by being engaged above and below boss and groove, the upper specimen holder with it is described
Lower specimen holder up and down be engaged after be fixed on the lower clamping device, the lower clamping device be connected through a screw thread again with it is described on
Clamping device is fixed up and down.
3. a kind of synchronous testing device of the orthotopic fenestration bursting of fabric overlay film and tear resistance as described in claim 1,
It is characterized in that, the variable diameters probe assembly is connected and fixed via clamping component two with the multi-functional strength and elongation instrument.
4. a kind of synchronous testing device of the orthotopic fenestration bursting of fabric overlay film and tear resistance as described in claim 1,
It is characterized in that, the Diameter Gradual Change portion of the variable diameters probe assembly is in coniform.
5. a kind of synchronous testing device of the orthotopic fenestration bursting of fabric overlay film and tear resistance as described in claim 1,
It is characterized in that, the end in the pricker portion of the variable diameters probe assembly is needle point, and the blade angle α of needle point is 15 °~30 °.
6. a kind of synchronous testing device of the orthotopic fenestration bursting of fabric overlay film and tear resistance as described in claim 1,
It is characterized in that, the range of the diameter Ф 1 of the clamping part is 6-12mm, and the range of the diameter Ф 2 in the pricker portion is 0.7-
1.2mm, the range of the length in the Diameter Gradual Change portion are 10-20mm.
7. a kind of synchronous testing device of the orthotopic fenestration bursting of fabric overlay film and tear resistance as described in claim 1,
It is characterized in that, at least 3 blades is distributed along the circumference on the outer circumference surface in the Diameter Gradual Change portion of the variable diameters probe assembly,
Every blade is axially extended until taking the whole length in the Diameter Gradual Change portion.
8. a kind of synchronous testing device of the orthotopic fenestration bursting of fabric overlay film and tear resistance as claimed in claim 7,
It is characterized in that, is distributed along the circumference at least three jag on the outer circumference surface of the upper specimen holder, in the lower specimen holder
Quantity mark line one identical with jag is distributed along the circumference on outer circumference surface, when the upper specimen holder and the lower specimen holder
After fixing up and down, each jag is directed at a mark line one.
9. a kind of synchronous testing device of the orthotopic fenestration bursting of fabric overlay film and tear resistance as claimed in claim 7,
Be characterized in that, in one side of the lower specimen holder towards the upper specimen holder be equipped with for determine the blade with it is described to be measured
The graduation mark one of opposite cutting angle between the warp thread of the fabric overlay film of examination；
And/or it is equipped in the one side of the upper clamping device outwardly for determining that the blade is covered with the fabric to be tested
The graduation mark two of opposite cutting angle between the warp thread of film.
10. a kind of synchronous testing device of the orthotopic fenestration bursting of fabric overlay film and tear resistance as described in claim 1,
It is characterized in that, the mark line of identical quantity is respectively equipped on the outer circumference surface of the upper clamping device and the lower clamping device
Two and mark line three, after the upper clamping device and the lower clamping device fixed up and down, on mark line two and mark line three
Lower alignment.
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| CN108020475B (en) * | 2017-11-27 | 2020-05-05 | 东华大学 | Device and method for simulating and testing durability of windowing region of covered stent for in-situ windowing |
| CN115014941B (en) * | 2022-06-02 | 2023-01-06 | 广东嘉元科技股份有限公司 | Copper foil online detection method and device suitable for single-opening detection mechanism |
| CN115326577A (en) * | 2022-10-12 | 2022-11-11 | 东莞市艾慕寝室用品有限公司 | Environment-friendly renewable oil-resistant sofa fabric elasticity detection device |
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Application publication date: 20161109 Assignee: SHANGHAI XIANGHAI BRAIDING MACHINE Co.,Ltd. Assignor: DONGHUA University Contract record no.: X2024980002583 Denomination of invention: Synchronous testing device for bursting and tearing performance of fabric film for in-situ window opening Granted publication date: 20191108 License type: Common License Record date: 20240306 |
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