CN206740503U - A kind of multifunctional test machine for seal wire Mechanics Performance Testing - Google Patents
A kind of multifunctional test machine for seal wire Mechanics Performance Testing Download PDFInfo
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- CN206740503U CN206740503U CN201720588273.1U CN201720588273U CN206740503U CN 206740503 U CN206740503 U CN 206740503U CN 201720588273 U CN201720588273 U CN 201720588273U CN 206740503 U CN206740503 U CN 206740503U
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Abstract
It the utility model is related to PCI medical instruments field, a kind of more particularly to multifunctional test machine for seal wire Mechanics Performance Testing, it is characterized in that, its structure includes base, speed change slide unit, servomotor, mounting bracket, seal wire performance test fixture, guide wire fixture, device for measuring force and process control computer composition, the base is provided with speed change slide unit and mounting bracket, the servomotor is located at one end of base, and the servo motor shaft is connected with speed change slide unit by lead screw pair or screw pair；Mounting bracket or the speed change slide unit is provided with replaceable seal wire performance test fixture, and the speed change slide unit or mounting bracket are provided with device for measuring force.Compared with prior art, the utility model has the advantages that：Solve the problems, such as current seal wire test equipment insufficiency, realized on the same stage on testing machine to a variety of mechanical properties of seal wire and the test of material property, be advantageous to make the correlated performance of seal wire and more accurately assess, facilitate the selection and index test and appraisal of seal wire.
Description
Technical field
PCI medical instruments field is the utility model is related to, particularly to one kind is used for seal wire mechanical property
The multifunctional test machine that can be tested.
Background technology
Seal wire is a kind of basic apparatus of modern endovascular treatment, radiography in modern medicine, takes bolt, laying bracket and defeated
Oviduct leads to the application for waiting operation all to be unable to do without seal wire again.PCI is exactly under the guiding of medical imaging device, by seal wire, is led
The particular modalities such as pipe import human lesion position, and a kind of technology for being diagnosed and being treated to it.Seal wire is a kind of use
In the conventional apparatus of intervention operation, the effect of seal wire is that other apparatuses are played with support, guiding and positioning, with intervention operation
High speed development, people it is also proposed more stringent requirement to the performance of seal wire.
For example suitable for handling a line seal wire of most of common lesions, first have to consider the security of seal wire, it is desirable to lead
Silk has soft head end, can avoid complication to the full extent.Secondly the validity of seal wire is considered, it is desirable to which seal wire has medium
Support force, the requirement for conveying general instruments can be met, lasting durability, for a long time or more blood vessels use and do not occur permanently to become
Shape, outstanding torsion control and tracing property, it is easy to reach blood vessel distal end.Some special lesion types, the performance of seal wire is proposed
It is more to require.For tortuous blood vessel class lesion, common seal wire is not easy to reach lesion, and usual collateral blood vessels are at an acute angle to be sent,
Derivation silk has outstanding torsion control and tracing property, and head end is without prolapsus, and well handling, often polymerize from whole
Thing sheath is cladded with the superslide seal wire of hydrophilic coating.Lesion for needing superior support, then seal wire need provide high intensity branch
Support force and soft head end, play a part of increase support and stretch blood vessel.For Chronic total occlusion, seal wire is by closing
While filling in lesion, the possibility of the damage to blood vessel is reduced as far as possible, it is desirable to which seal wire has that good head end is handling, and reinforcing passes through
The harder taper head end of property, and good touch feedback.
In summary, the support force of seal wire, compliance, handling, visual, lubricity, tracing property, head end hardness, touch
Feel that the performances such as feedback determine the properties of product of seal wire, the accurate evaluation for above performance, selection that can be to seal wire and fixed
Measurement, which is commented, to play an important role.But the functions of the equipments for being used to test seal wire correlation mechanical property both at home and abroad at present are also relatively more single
One, a variety of Mechanics Performance Testings of seal wire can not be realized in a test equipment, and it is domestic for the survey of seal wire mechanical property
In terms of examination, also lack the method for testing of system, it would be highly desirable to improve.
Utility model content
The purpose of this utility model is to provide a kind of multifunctional test machine for seal wire Mechanics Performance Testing, overcomes existing
The deficiency of technology, solve the problems, such as that the functions of the equipments of test seal wire correlation mechanical property at present are not complete, the utility model is intended to reality
Now a variety of Mechanics Performance Testings of seal wire are concentrated on a testing machine and completed, pass through the fortune of computer program Control experiment machine
Go and record coherent detection data, the mechanical properties such as seal wire compliance, head end hardness, piercing force, pushability can be detected, and
The material property such as terminal shaft Memorability and seal wire smoothness, makes measurement result accurate, and test result repeatability is high, and these have
Help make the correlated performance of seal wire more accurately qualitative assessment.
To achieve these goals, the technical solution of the utility model is such：
A kind of multifunctional test machine for seal wire Mechanics Performance Testing, its structure include base, speed change slide unit, servo electricity
Machine, mounting bracket, seal wire performance test fixture, guide wire fixture, device for measuring force and process control computer form, on the base
Provided with speed change slide unit and mounting bracket, the servomotor is located at one end of base, and the servo motor shaft leads to speed change slide unit
Cross lead screw pair or screw pair is connected；Mounting bracket or the speed change slide unit is provided with replaceable seal wire performance test fixture,
The speed change slide unit or mounting bracket are provided with device for measuring force, and during test, the seal wire performance test fixture fills with the dynamometry
Seated position is relative, and the device for measuring force is connected with guide wire fixture, and seal wire, the process control meter are accompanied in the guide wire fixture
Calculation machine carries out data communication with servomotor, and closed-loop control, institute are carried out for the translational speed to speed change slide unit and displacement
State process control computer by data wire with device for measuring force to be connected, data measured is recorded and counted.
The guide wire fixture is three-port structure, including main channel, chuck and collateral passage, one end of the main channel be with
The connected connection end of device for measuring force, the other end of the main channel is lived with chuck to be connected, and the chuck is provided with seal wire via, institute
State the angle into 30 ° ~ 60 ° between collateral passage and main channel central axis.
The seal wire performance test fixture is compliance test fixture, and fixture is provided with flat circular hole, flat Circularhole diameter
Bigger 0.04 ~ 0.06mm than seal wire diameter, flat circular hole depth is 5 ~ 10mm, and during test, seal wire head end is withstood in flat circular hole, is become
Ski-running platform continues forward 20 ~ 50mm distance.
The seal wire performance test fixture is head end hardness test fixture, and fixture is provided with cone bottom circular hole, cone bottom circle
5 ~ 6mm of hole aperture, cone bottom is highly 1 ~ 3mm, taper 1:10~1:15.
The seal wire performance test fixture is perforation model fixture, and fixture is provided with bullport and simulation medium, the mould
Intend medium to be fixed at the transverse cross-sectional profile of bullport by clamping thing.
The seal wire performance test fixture is seal wire pushability test fixture, and fixture is provided with one section of conduit, tube at one end
It is connected with push chuck, during test, seal wire one end is fixed by the guide wire fixture, and the other end is consolidated through conduit by push chuck
Fixed, guidewire length is no less than 150mm between two fixing ends.
The seal wire performance test fixture is tortuous vascular pattern, which is provided with emulation blood vessel duct, the emulation blood vessel
Duct internal diameter is 1.5 ~ 2.5mm, including 4 ~ 6 bending sections, 800 ~ 1000mm of total length, the bending radius of the bending section for 30 ~
50mm, bending section angle are 90 ° and 180 ° two kinds and are spaced.
The seal wire performance test fixture is terminal shaft recall tests mould, and fixture is provided with round bottom circular hole, the round bottom
10 ~ 12mm of Circularhole diameter, round bottom depth are 5 ~ 6mm.
Compared with prior art, the beneficial effects of the utility model are：
1）Solves the problems, such as current seal wire test equipment insufficiency, by being changed by different seal wire performance test projects
Corresponding seal wire performance test fixture, is realized to a variety of mechanical properties of seal wire and the survey of material property on same testing machine
Examination, by the operation of computer program control device and record coherent detection data, can detect seal wire compliance, head end hardness,
The terminal shaft Memorability and seal wire smoothness of the mechanical properties such as piercing force, push rod intensity and display guidewire material performance etc. are all
More performances.
2）Conventional guide wires fixture is improved, adds collateral passage, it is not necessary to dismantles device for measuring force can and realizes seal wire
Fast exchange, considerably improves the efficiency of seal wire performance test, while improves the repeatability of individual event test result.
3）Because each test has accurate records of values to prove, the conventional qualitative detection in seal wire industry is upgraded to
Quantitative detection, test result is more objective, and measurement result is accurate, is advantageous to make the correlated performance of seal wire and more accurately assesses,
Facilitate the selection and index test and appraisal of seal wire.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is multifunctional test machine example structure schematic diagram provided by the utility model.
Fig. 2 is guide wire fixture example structure schematic diagram provided by the utility model.
Fig. 3 is compliance test schematic diagram provided by the utility model.
Fig. 4 is head end hardness test schematic diagram provided by the utility model.
Fig. 5 is pierceability test schematic diagram provided by the utility model.
Fig. 6 is pushability test schematic diagram provided by the utility model.
Fig. 7 is seal wire smoothness test schematic diagram provided by the utility model.
Fig. 8 is tortuous vascular pattern example structure schematic diagram provided by the utility model.
Fig. 9 is terminal shaft Memorability test schematic diagram provided by the utility model.
In figure：1- bases, 2- speed change slide units, 3- servomotors, 4- mounting brackets, 5- seal wire performance test fixtures,
6- guide wire fixtures, 7- device for measuring force, 8- process control computers, 9- seal wires, 10- main channels, 11- chucks, 12- sides
Subchannel, 13- seal wire vias, 14- compliance test fixtures, the flat circular holes of 15-, 16- head end hardness test fixtures, 17-
Bore bottom circular hole, 18- perforation model fixtures, 19- bullports, 20- simulation mediums, 21- clamping things, the survey of 22- seal wires pushability
Try fixture, 23- conduits, 24- push chucks, the tortuous vascular patterns of 25-, 26- emulation blood vessels duct, the memory of 27- terminal shafts
Testing mould, 28- round bottom circular holes, 29- internal threads connection end, 30- bending sections, 31- tubules.
Embodiment
Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings.
See Fig. 1, be that a kind of multifunctional test machine example structure for seal wire Mechanics Performance Testing of the utility model is shown
It is intended to, including base 1, speed change slide unit 2, servomotor 3, mounting bracket 4, seal wire performance test fixture 5, guide wire fixture 6, dynamometry
Device 7 and process control computer 8 form, and base 1 is provided with speed change slide unit 2 and mounting bracket 4, and servomotor 3 is located at base 1
One end, servo motor shaft is connected with speed change slide unit 2 by lead screw pair or screw pair；Mounting bracket 4 is provided with replaceable
Seal wire performance test fixture 5, speed change slide unit 2 are provided with device for measuring force 7, during test, seal wire performance test fixture 5 and device for measuring force
7 position is relative, and device for measuring force 7 connects guide wire fixture 6, and guide wire fixture 6 is used for clamping seal wire 9, and process control computer 8 is with watching
Take motor 3 and carry out data communication, closed-loop control, process control are carried out for the translational speed to speed change slide unit 2 and displacement
Computer 8 is connected by data wire with device for measuring force 7, and data measured is recorded and counted.
The use of the utility model multifunctional test machine is exactly to change corresponding seal wire by different seal wire performance test projects
Can test fixture, and corresponding operation program is performed by process control computer 8, the gait of march of control speed change slide unit 2 and
Travel distance, while coordinate the numerical value of collection device for measuring force 7 in real time, complete the every mechanical property and/or material property of seal wire 9
Test, while automatically form the drafting of data record and stress curve.The mechanical property that the utility model is applicable test includes
Combination more than one or both of seal wire compliance, head end hardness, piercing force, pushability；The utility model is applicable test
Material property include one or both of terminal shaft Memorability and seal wire smoothness.
To see Fig. 2, be guide wire fixture example structure schematic diagram provided by the utility model, guide wire fixture is three-port structure,
Including main channel 10, chuck 11 and collateral passage 12, one end of main channel 10 is the internal thread connection end being connected with device for measuring force
29, the other end of main channel 10 is lived by screw thread with chuck 11 and connected, and chuck 11 is provided with seal wire via 13, collateral passage 12 and
Angle α at 45 ° between the central axis of main channel 10, during test, seal wire 9 is penetrated by collateral passage 12, is passed by chuck 11
It is and fixed.Due to adding collateral passage 12, it may not be necessary to dismantle the fast exchange that device for measuring force just realizes seal wire, significantly carry
The high efficiency of seal wire performance test, while improve the repeatability of individual event test result.
See Fig. 3, be compliance test schematic diagram provided by the utility model, compliance test fixture 14 is provided with flat circle
Hole 15, flat Circularhole diameter D1 is bigger 0.04mm than seal wire diameter, and flat circular hole depth H 1 is 5mm, during test, first by seal wire 9
End withstands on circular hole bottom, ensures that seal wire is not in skidding under stress, before making servomotor drive speed change slide unit to continue
Row 30mm, seal wire is compressed to 20mm from 50mm, the numerical value change of process control computer record device for measuring force in test process
And curve is drawn, measured maximum stress is defined as the mean stress of seal wire head end in conductive filament head side pressure compression process.Surveyed
Stress numerical it is bigger, then the hardness for representing seal wire head end is bigger.The method of testing of compliance can be used for evaluation seal wire in itself with
The ability of vascular bending degree change.
See Fig. 4, be head end hardness test schematic diagram provided by the utility model, head end hardness test fixture 16 is provided with cone
Bottom circular hole 17, cone bottom circular hole aperture D2 be 5mm, and it is 1mm to bore bottom height H2, taper 1:15, during test, the head end of seal wire 9 is withstood on
Bottom circular hole bottom is bored, speed change slide unit continues to move ahead when seal wire forms 2mm amount of deflection, and process control computer record is now surveyed
The numerical value of power apparatus, with the head end hardness of the numerical representation method seal wire.Head end hardness is bigger, and under equivalent diameter, seal wire passes through thrombus
Possibility it is bigger, while seal wire puncture vascular wall possibility it is bigger.
See Fig. 5, be pierceability test schematic diagram provided by the utility model, perforation model fixture 18 is provided with bullport 19
With simulation medium 20, simulation medium 20 is thick 0.016mm aluminium foil, be fixed on bullport 19 by clamping thing 21 cross-section section
At face, during test, seal wire 9 at the uniform velocity moves ahead until penetrating simulation medium 20, and dynamometry fills during process control computer records this
The maximum put.Pierceability test is when being walked in the blood vessel for simulating seal wire, required power during seal wire penetrate blood wall.For
Fixed seal wire and seal wire bending is prevented to be installed with tubule 31 outside seal wire 9, using aluminium foil simulated blood vessel wall, clamping thing 21 is two
Perforated metal piece.Speed change slide unit is set at the uniform velocity to push seal wire, until seal wire penetrates aluminium foil, the maximum, force occurred during this is to lead
Silk penetrates the power needed during blood vessel.Measured power is bigger, then the possibility of seal wire puncture blood vessel is smaller.
See Fig. 6, be pushability test schematic diagram provided by the utility model, seal wire pushability test fixture 22 is provided with one
Section conduit 23, the one end of conduit 23 are connected with pushing chuck 24, and during test, the one end of seal wire 9 is fixed by guide wire fixture 6, and the other end is worn
Cross conduit to be fixed by push chuck, guidewire length is 150mm between two fixing ends, and speed change slide unit at the uniform velocity moves ahead until seal wire is bent
Length is 50mm afterwards, and the maximum that process control computer records device for measuring force during this is seal wire push power, seal wire
It is bigger to push power, then it represents that the pushability of seal wire is better.
See Fig. 7, be seal wire smoothness test schematic diagram provided by the utility model, the head end of seal wire 9 is passed through into tortuous blood vessel
Model 25, tail end are fixed on guide wire fixture 6, speed change slide unit is at the uniform velocity pushed/pull out seal wire, and device for measuring force is recorded during this
Mean stress, the stress is smaller, then seal wire is stronger by the ability of tortuous blood vessel, and the smoothness of seal wire is better.
See Fig. 8, be tortuous vascular pattern example structure schematic diagram provided by the utility model, on tortuous vascular pattern 25
Provided with emulation blood vessel duct 26, emulation blood vessel duct internal diameter D3 is 2mm, including 4 bending sections 30, total length 1000mm, bending section
Bending radius be 30mm, the angle of bending section 30 is 90 ° and 180 ° two kinds and is spaced.Each bending section bending radius can not phase
Together.This model can be arranged as required to plurality of specifications size, for testing the seal wire of different purposes.
See Fig. 9, be terminal shaft Memorability test schematic diagram provided by the utility model, on terminal shaft recall tests mould 27
Provided with round bottom circular hole 28, round bottom Circularhole diameter D4 is 10mm, and round bottom depth H 3 is 5mm, and during test, the head end of seal wire 9 is justified along round bottom
Hole inwall incision, speed change slide unit continue to move ahead until seal wire head end bottoms out bending, retest 20 times, visually observation seal wire bending
Part changes, and checks seal wire whether there is and produces permanent plastic deformation, and whether seal wire, wrapping wire have fracture, if any coating, checks that coating is
It is no to peel off, and make a record.The test of terminal shaft Memorability is used for evaluating the shape retentivity of wire distal.
Above example is only the tool to describe the purpose of this utility model in detail, technical scheme and beneficial effect are chosen
Body example, but should in no way limit the scope of protection of the utility model, it is all without prejudice to before the spirit and principles of the utility model
Put, various modifications, equivalent substitution and the improvement made, all should fall within the scope of protection of the utility model.
Claims (8)
1. a kind of multifunctional test machine for seal wire Mechanics Performance Testing, it is characterised in that its structure includes base, becomes ski-running
Platform, servomotor, mounting bracket, seal wire performance test fixture, guide wire fixture, device for measuring force and process control computer composition,
The base is provided with speed change slide unit and mounting bracket, and the servomotor is located at one end of base, the servo motor shaft with
Speed change slide unit is connected by lead screw pair or screw pair；Mounting bracket or the speed change slide unit is provided with replaceable seal wire performance
Test fixture, the speed change slide unit or mounting bracket are provided with device for measuring force, during test, the seal wire performance test fixture and institute
It is relative to state device for measuring force position, the device for measuring force connects guide wire fixture, and the guide wire fixture is built-in to accompany seal wire to be tested,
The process control computer and servomotor data communication, the process control computer pass through data wire and device for measuring force phase
Even.
A kind of 2. multifunctional test machine for seal wire Mechanics Performance Testing according to claim 1, it is characterised in that institute
It is three-port structure to state guide wire fixture, including main channel, chuck and collateral passage, and one end of the main channel is and device for measuring force phase
Connection end even, the other end of the main channel is lived with chuck to be connected, and the chuck is provided with seal wire via, the collateral passage
Into 30 ° ~ 60 ° of angle between the central axis of main channel.
A kind of 3. multifunctional test machine for seal wire Mechanics Performance Testing according to claim 1, it is characterised in that institute
It is compliance test fixture to state seal wire performance test fixture, and fixture is provided with flat circular hole, and flat Circularhole diameter is than seal wire diameter
Big 0.04 ~ 0.06mm, flat circular hole depth are 5 ~ 10mm.
A kind of 4. multifunctional test machine for seal wire Mechanics Performance Testing according to claim 1, it is characterised in that institute
It is head end hardness test fixture to state seal wire performance test fixture, and fixture, which is provided with, bores bottom circular hole, the cone bottom circular hole aperture 5 ~
6mm, cone bottom is highly 1 ~ 3mm, taper 1:10~1:15.
A kind of 5. multifunctional test machine for seal wire Mechanics Performance Testing according to claim 1, it is characterised in that institute
It is perforation model fixture to state seal wire performance test fixture, and fixture is provided with bullport and simulation medium, and the simulation medium passes through
Clamping thing is fixed at the transverse cross-sectional profile of bullport.
A kind of 6. multifunctional test machine for seal wire Mechanics Performance Testing according to claim 1, it is characterised in that institute
It is seal wire pushability test fixture to state seal wire performance test fixture, and fixture is provided with one section of conduit, tube at one end and push chuck
Connection, during test, seal wire one end is fixed by the guide wire fixture, and the other end is fixed through conduit by push chuck, two fixing ends
Between guidewire length be no less than 150mm.
A kind of 7. multifunctional test machine for seal wire Mechanics Performance Testing according to claim 1, it is characterised in that institute
It is tortuous vascular pattern to state seal wire performance test fixture, which is provided with emulation blood vessel duct, and emulation blood vessel duct internal diameter is
1.5 ~ 2.5mm, including 4 ~ 6 bending sections, 800 ~ 1000mm of total length, the bending radius of the bending section are 30 ~ 50mm, bending section
Angle is 90 ° and 180 ° two kinds and is spaced.
A kind of 8. multifunctional test machine for seal wire Mechanics Performance Testing according to claim 1, it is characterised in that institute
It is terminal shaft recall tests mould to state seal wire performance test fixture, and fixture is provided with round bottom circular hole, the round bottom Circularhole diameter 10 ~
12mm, round bottom depth are 5 ~ 6mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720588273.1U CN206740503U (en) | 2017-05-25 | 2017-05-25 | A kind of multifunctional test machine for seal wire Mechanics Performance Testing |
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| CN201720588273.1U CN206740503U (en) | 2017-05-25 | 2017-05-25 | A kind of multifunctional test machine for seal wire Mechanics Performance Testing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107101869A (en) * | 2017-05-25 | 2017-08-29 | 沈阳新智源医疗用品有限公司 | A kind of multifunctional test machine and its application method for seal wire Mechanics Performance Testing |
-
2017
- 2017-05-25 CN CN201720588273.1U patent/CN206740503U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107101869A (en) * | 2017-05-25 | 2017-08-29 | 沈阳新智源医疗用品有限公司 | A kind of multifunctional test machine and its application method for seal wire Mechanics Performance Testing |
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