CN202506974U - Laser processing device for intravascular stent - Google Patents
Laser processing device for intravascular stent Download PDFInfo
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- CN202506974U CN202506974U CN 201220024816 CN201220024816U CN202506974U CN 202506974 U CN202506974 U CN 202506974U CN 201220024816 CN201220024816 CN 201220024816 CN 201220024816 U CN201220024816 U CN 201220024816U CN 202506974 U CN202506974 U CN 202506974U
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- laser
- pull bar
- intravascular stent
- rotating shaft
- shaft
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Abstract
The utility model provides a laser processing device for an intravascular stent. The laser processing device for the intravascular stent comprises a rotating shaft, a straight-line shaft, a laser cutting head, an auxiliary high-pressure gas supply unit, a Z-shaft module, a laser generator, collimation expanders, a lighting source, a 45 degree reflector, a charge coupled device (CCD) and a control system. The CCD receives light reflected from the 45 degree reflector and is used for observing focusing situations of light spots when the positions of laser light spots are adjusted, and simultaneously checking processing situations in real time in a processing process and recording pictures in the whole processing process. The control system comprises a movement control unit used for controlling the straight-line shaft, the rotating shaft and the Z-shaft module, and a laser control unit used for controlling the laser generator. The laser processing device for the intravascular stent has the advantages of fast speed and high processing precision, modular design of each functional module, strong interchangeability, easy updating and compact structure. Meanwhile, the obtained stent products can meet precision requirements of mechanical instruments, and therefore the laser processing device for the intravascular stent greatly promotes the progress of large-amount localization of the intravascular stent.
Description
Technical field
The utility model belongs to thin-wall pipes Laser Micro-Machining field, relates to a kind of laser process equipment, particularly a kind of laser process equipment of intravascular stent.
Background technology
Intravascular stent is meant on the basis that the tube chamber balloon expandable is shaped; Insert inner support in lesion and support stenosis occlusion section blood vessel to reach; Reduce blood vessel elasticity retraction and moulding again, keep the tube chamber blood flow unobstructed, play the open effect that is used for keeping blood vessel of a bracing frame.The part inner support also has the effect of prevention of restenosis.Mainly be divided into coronary artery bracket, cerebrovascular support, renal artery stent, main artery support etc.
The intravascular stent processing development of China is later, and technology is relatively backward, and machining accuracy and quality have bigger gap more abroad, and the support great majority of performing the operation used at present are from external import, and device structure is complicated, costs an arm and a leg, and causes whole surgery costly.
Meanwhile; Existing intravascular stent cutting equipment adopts the YAG laser instrument mostly, and this laser beam quality is poor, and floor space is big; The support seam face of cutting is rough; The heat affected area is big, and the subsequent treatment cost of support is high, and main is that the precision of cutting does not reach the requirement of medicine equipment to precision.
In view of this, nowadays press for the intravascular stent laser process equipment that a kind of process velocity is fast, machining accuracy is high.
The utility model content
The purpose of the utility model is intended to solve at least one of above-mentioned technological deficiency, particularly solves existing blood vessel Laser Micro-Machining equipment and adopts YAG laser instrument, the problem that process velocity is slow, machining accuracy is low.
For achieving the above object; The utility model provides a kind of laser process equipment of intravascular stent, comprise rotating shaft, linear axis, laser cutting head, auxiliary gases at high pressure air supply unit, Z axle module, laser generator, collimator and extender mirror, lighting source, 45 ° of speculums, CCD, control system; Said laser cutting head comprises laser nozzle, protective glass, focus lamp; Said rotating shaft is used for clamp bracket tubing, and drives the rotation of support tubing high accuracy, and the base of rotating shaft is installed on the moving plate of linear axis, can be along the linear axis feeding; Linear axis and rotating shaft have been formed the precise 2-D motion platform of intravascular stent laser process equipment; This precise 2-D motion platform collector material clamping and material processed adopt high-resolution gration chi and high-precision encoder position feedback to realize the control of full cut-off ring in one; The laser beam that said laser generator sent forms horizontal laser beam through the collimator and extender mirror; Then the light with the lighting source emission is incident to 45 ° of speculums simultaneously; 45 ° of speculums are to the horizontal laser beam total reflection, and 45 ° of Mingguang City of contrast are anti-reflection, and laser beam impinges perpendicularly on the focus lamp; The laser beam that sees through focus lamp gathers into a minimum hot spot through protective glass in along; The support tube surfaces of hot spot on processing platform makes the workpiece instant vaporization, and the auxiliary cutting gas that cooperates auxiliary gases at high pressure air supply unit to provide again blows away the metal of vaporizing; Said CCD receives the light from 45 ° of mirror reflects, and CCD focuses on situation in order to when laser spot position is adjusted, to observe hot spot, in process, checks the processing situation simultaneously at any time, and to the omnidistance video recording of process; Said laser cutting head is installed on the Z axle module; Can manually perhaps be implemented in the rectilinear motion up and down of Z axle module automatically; Thereby can adjust the most surperficial distance of laser nozzle lower edge distance bracket tubing according to different tube diameters; Control the Energy distribution of support tubing focal beam spot to be processed, simultaneously can be in process at any time according to the variation adjustment laser nozzle of laser facula and the distance of processing support tube surfaces; Said control system comprises the motion control unit that is used to control linear axis, rotating shaft and Z axle module, and the laser controlling unit that is used to control laser generator; Said control system is connected with linear axis, rotating shaft, Z axle module, laser generator, CCD.
In an embodiment of the utility model, said rotating shaft comprises motor, shaft coupling, worm screw, worm gear, pull bar module, shell, end cap, chuck; Said pull bar module comprises pull bar lid, piston, draw-bar seat, rolling bearing, axle sleeve, pull bar, and pull bar is a hollow structure; One end of said shell is provided with pull bar lid, draw-bar seat, and the other end is provided with end cap; Be provided with piston, axle sleeve, rolling bearing between said pull bar lid, the draw-bar seat; The both sides of piston are respectively equipped with first air cavity, second air cavity, and first air cavity, second air cavity are respectively equipped with the gateway, charge and discharge gas through the gateway; Said chuck is arranged at an end of pull bar, passes end cap and exposes a part; Chuck is through being screwed into the other end screwed hole of pull bar module from the end of rotating shaft near the pull bar lid; Said shaft coupling is connected the output shaft of motor with worm shaft, worm and wheel cooperates, and said worm gear and pull bar are coaxial, and worm-wheel shaft is pull rod shaft; The rotation of motor finally drives pull rod shaft and rotatablely moves; When clamping tubing, to the inflation of first air cavity, high pressure gas is known from experience the pushing drawing rod module and is moved towards first direction; Thereby drive shell, end inner cap and end cap together towards the first direction motion, till the internal conical surface and the outer conical surface of chuck of end cap were close to, end cap continued to first direction move (like the right among Fig. 2); Cause collet to tighten up; Tubing is embraced, kept this state, tubing will be held tightly by chuck always; In the time of need unclamping tubing; Be the inflation of second air cavity, the venting of first air cavity; Thereby gases at high pressure drive the pull bar module and promote shell, end inner cap and end cap towards second direction motion (like the left side among Fig. 2) towards the second direction motion, and then make the outer conical surface of collet and the internal conical surface of end cap be separated, and keep releasing orientation; This moment, collet relied on the elastic-restoring force of self to keep releasing orientation, and tubing is with released.
In an embodiment of the utility model, said piston comprises cover in piston bush, the piston, is arranged with the sealing of 0 shape sealing ring in piston bush, the piston.
In an embodiment of the utility model, be provided with the end inner cap between said end cap and the enclosing cover.
In an embodiment of the utility model, said shaft device comprises base, and said shell is arranged on this base.
In an embodiment of the utility model, said pull bar is the hollow seamless pipe.
In an embodiment of the utility model, an end of said pull bar is provided with the pull bar knob, manually rotating rod.
In an embodiment of the utility model, said control system is installed in the PC or is installed in the hand-held mobile terminal, and PC or hand-held mobile terminal are connected with linear axis, rotating shaft, Z axle module, laser generator, CCD through the control cable.
The laser process equipment of the intravascular stent that proposes through the utility model, process velocity is fast, machining accuracy is high; And each function block design, interchangeability is strong, updates easily, compact conformation, the support product of acquisition can meet the required precision of medicine equipment, has greatly advanced a large amount of process of localization of intravascular stent.
Aspect that the utility model is additional and advantage part in the following description provide, and part will become obviously from the following description, or recognize through the practice of the utility model.
Description of drawings
Above-mentioned and/or additional aspect of the utility model and advantage are from obviously with easily understanding becoming the description of embodiment below in conjunction with accompanying drawing, wherein:
Fig. 1 is the composition sketch map of the laser process equipment of intravascular stent.
Fig. 2 is the structural representation of rotating shaft.
The specific embodiment
Describe the embodiment of the utility model below in detail, the example of said embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Be exemplary through the embodiment that is described with reference to the drawings below, only be used to explain the utility model, and can not be interpreted as restriction the utility model.
In the description of the utility model; It will be appreciated that; Term " on ", the orientation of indications such as D score, " interior ", " left side ", " right side " or position relation be for based on orientation shown in the drawings or position relation; Only be to describe with simplifying for the ease of describing the utility model, rather than the device or the element of indication or hint indication must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction to the utility model.
In the description of the utility model, need to prove that only if clear and definite regulation and qualification are arranged in addition, term " installation ", " connection " should be done broad understanding, for example, can be to be fixedly connected, connect integratedly, also can be to removably connect; It can be the connection of two element internals; Can be directly to link to each other, also can link to each other indirectly, for those of ordinary skill in the art, can concrete condition understand the concrete implication of above-mentioned term in the utility model through intermediary.
The main innovation part of the utility model is, has proposed to the utility model innovation a kind of laser process equipment of intravascular stent, and process velocity is fast, and machining accuracy is high.
See also Fig. 1; The laser process equipment of a kind of intravascular stent of the utility model comprises rotating shaft 1, linear axis 2, laser cutting head, auxiliary gases at high pressure air supply unit 6, Z axle module 14, laser generator 9, collimator and extender mirror 10,11,45 ° of speculums 12 of lighting source, CCD13, control system 16.Said laser cutting head comprises laser nozzle 5, protective glass 7, focus lamp 8.
Said rotating shaft 1 is through its chuck 3 clamp bracket tubing 4, and the rotation of drive support tubing 4 high accuracy, and the base of rotating shaft 1 is installed on the moving plate of linear axis 2, can be along linear axis 2 feedings; Linear axis 2 and rotating shaft 1 have been formed the precise 2-D motion platform of intravascular stent laser process equipment; This precise 2-D motion platform collector material clamping and material processed adopt high-resolution gration chi and high-precision encoder position feedback to realize the control of full cut-off ring in one.Adopt high-resolution gration chi and high-precision encoder position feedback to realize the control of full cut-off ring, solved traditional servomotor add rigidity that the ball screw structure exists not enough, frictional force greatly, have problems such as backlash and dead band.Speed is faster, precision is higher, sealing characteristics good, and core component can use all the life, and operation expense is lower.
The laser beam that said laser generator 9 is sent forms horizontal laser beam through collimator and extender mirror 10; Then the light with lighting source 11 emissions is incident to 45 ° of speculums 12 simultaneously; 12 pairs of horizontal laser beam total reflections of 45 ° of speculums; And 45 ° of Mingguang City of contrast are anti-reflection, and laser beam impinges perpendicularly on the focus lamp 8; The laser beam that sees through focus lamp 8 gathers into a minimum hot spot through protective glass 7 in along; Support tubing 4 surfaces of hot spot on processing platform make the workpiece instant vaporization, and the auxiliary cutting gas that cooperates auxiliary gases at high pressure air supply unit 6 to provide again blows away the metal of vaporizing.
Said CCD13 receives from the light of 45 ° of speculums, 12 reflections, and CCD13 focuses on situation in order to when laser spot position is adjusted, to observe hot spot, in process, checks the processing situation simultaneously at any time, and to the omnidistance video recording of process; Said laser cutting head is installed on the Z axle module 14; Can manually perhaps be implemented in the rectilinear motion up and down of Z axle module 14 automatically; Thereby can adjust the distance on surface of laser nozzle 5 lower edge distance bracket tubing 4 according to different tube diameters; Control the Energy distribution of support tubing 4 focal beam spots to be processed, simultaneously can be in process at any time according to the variation adjustment laser nozzle 5 of laser facula and the distance of processing support tube surfaces.
Said control system 16 comprises the motion control unit that is used to control linear axis 2, rotating shaft 1 and Z axle module 14, and the laser controlling unit that is used to control laser generator 9; Said control system 16 is connected with linear axis 2, rotating shaft 1, Z axle module 14, laser generator 9, CCD13.Said control system 16 is installed in the PC or is installed in the hand-held mobile terminal, and PC or hand-held mobile terminal are connected with linear axis 2, rotating shaft 1, Z axle module 14, laser generator 9, CCD13 through control cable 15.Control system 16 based on PC includes software systems: the little processed and applied platform of Intelligent Laser PowerLaser; PowerLaser is on the PowerCAM basis, and is to the platform that Laser Micro-Machining is derived and developed, powerful; Design document form simple to operation, compatible nearly all.In addition, the control system 16 based on PC has image processing and Presentation Function simultaneously.
The utility model modularized design; Each functional module interface installation aspect; Interchangeability is strong; Can compatible dissimilar optical fiber lasers: can compatible different brands and dissimilar high-performance optical fibre lasers, adapt to the processing request of the metallic support product of different tube diameters, pipe range, guarantee the reliability and stability of support cut quality.Compatible dissimilar laser cutting heads: can realize quick, accurately replacement between different cutting heads according to the laser cutting head of the compatible high, medium and low different class of client's needs.
See also Fig. 2, Fig. 2 is the structural representation of rotating shaft 1 in the present embodiment, and certainly, rotating shaft can also be other shapes.Rotating shaft 1 comprises servomotor, shaft coupling, worm screw, worm gear 109, pull bar module, shell 108, end inner cap 111, end cap 112, chuck 113.Said shaft device comprises base, and said shell 108 is arranged on this base.Thus, rotating shaft integral body can be fixed on the linear axis platform very easily, and integral body is convenient to (being installed on the linear axis platform) is installed, and utilizes alignment pin, can realize coarse positioning.
Said pull bar module comprises that pull bar lid 102, piston (comprise cover 104 in piston bush 103, the piston; Cover 104 is provided with the sealing of 0 shape sealing ring in the piston bush 103, piston), draw-bar seat 105, rolling bearing 107, axle sleeve 106, pull bar 110, pull bar 110 is the hollow jointless structure.In the present embodiment, rotating shaft is a hollow structure inside, can let pull bar 110 pass through from the centre, and the rotating shaft of hollow can be realized tubing conveying function and wet cutting operation function simultaneously.Pull bar 110 is the thin-wall seamless pipe of a hollow, adds man-hour when wetting to cut, and adopts rearmounted water guide mode: whole tubing immerses in the aqueduct, in case aqueduct is revealed, current also are in the hollow sealing chamber of pull bar, can not influence the operate as normal of motor.
One end of said pull bar is provided with pull bar knob 101, and manually rotating rod 110.One end of said shell 108 is provided with pull bar lid 102, draw-bar seat 105, and the other end is provided with end cap 112; Be provided with piston, axle sleeve 106, rolling bearing 107 between said pull bar lid 102, the draw-bar seat 105.The both sides of piston are respectively equipped with first air cavity 118, second air cavity, 119, the first air cavitys 118, second air cavity 119 and are respectively equipped with the gateway, charge and discharge gas through the gateway; Said chuck 113 is arranged at an end of pull bar 110, passes end cap 112 and exposes a part; Chuck 113 is through being screwed into the other end screwed hole of pull bar module from the end of rotating shaft near pull bar lid 102.Said shaft coupling is connected the output shaft of motor and the axle of worm screw, and worm and wheel 109 cooperates, and said worm gear 109 is coaxial with pull bar 110, and worm-wheel shaft is pull rod shaft.The rotation of motor finally drives pull rod shaft and rotatablely moves.
When rotating shaft clamped tubing, to 118 inflations of first air cavity, high pressure gas was known from experience the pushing drawing rod module and is moved towards first direction (like the right among Fig. 2); Thereby drive shell 108, end inner cap 111 and end cap 112 together towards the first direction motion, till the internal conical surface and the outer conical surface of chuck 113 of end cap 112 were close to, end cap 112 continuation were moved to first direction; Cause collet 113 to tighten up; Tubing 4 is embraced, kept this state, tubing 4 will be held tightly by chuck 113 always.In the time of need unclamping tubing 4; Be 119 inflations of second air cavity, 118 venting of first air cavity; Thereby gases at high pressure drive the pull bar module and promote shell 108, end inner cap 111 and end cap 112 towards second direction (like the left side among Fig. 2) motion towards the second direction motion, and then make the outer conical surface of collet 113 and the internal conical surface of end cap 112 be separated, and keep releasing orientation; This moment, the elastic-restoring force of collet 113 dependence self kept releasing orientation, and tubing 4 is with released.In addition, adopt the sealing of 0 shape sealing ring between the air-tightness various piece in order to guarantee.
Although illustrated and described the embodiment of the utility model; For those of ordinary skill in the art; Be appreciated that under the situation of principle that does not break away from the utility model and spirit and can carry out multiple variation, modification, replacement and modification that the scope of the utility model is accompanying claims and be equal to and limit to these embodiment.
Claims (8)
1. the laser process equipment of an intravascular stent; It is characterized in that, comprise rotating shaft, linear axis, laser cutting head, auxiliary gases at high pressure air supply unit, Z axle module, laser generator, collimator and extender mirror, lighting source, 45 ° of speculums, CCD, control system; Said laser cutting head comprises laser nozzle, protective glass, focus lamp;
Said rotating shaft is used for clamp bracket tubing, and drives the rotation of support tubing high accuracy, and the base of rotating shaft is installed on the moving plate of linear axis, can be along the linear axis feeding; Linear axis and rotating shaft have been formed the precise 2-D motion platform of intravascular stent laser process equipment; This precise 2-D motion platform collector material clamping and material processed adopt high-resolution gration chi and high-precision encoder position feedback to realize the control of full cut-off ring in one;
The laser beam that said laser generator sent forms horizontal laser beam through the collimator and extender mirror; Then the light with the lighting source emission is incident to 45 ° of speculums simultaneously; 45 ° of speculums are to the horizontal laser beam total reflection, and 45 ° of Mingguang City of contrast are anti-reflection, and laser beam impinges perpendicularly on the focus lamp; The laser beam that sees through focus lamp gathers into a minimum hot spot through protective glass in along; The support tube surfaces of hot spot on processing platform makes the workpiece instant vaporization, and the auxiliary cutting gas that cooperates auxiliary gases at high pressure air supply unit to provide again blows away the metal of vaporizing;
Said CCD receives the light from 45 ° of mirror reflects, and CCD focuses on situation in order to when laser spot position is adjusted, to observe hot spot, in process, checks the processing situation simultaneously at any time, and to the omnidistance video recording of process;
Said laser cutting head is installed on the Z axle module; Can manually perhaps be implemented in the rectilinear motion up and down of Z axle module automatically; Thereby can adjust the most surperficial distance of laser nozzle lower edge distance bracket tubing according to different tube diameters; Control the Energy distribution of support tubing focal beam spot to be processed, simultaneously can be in process at any time according to the variation adjustment laser nozzle of laser facula and the distance of processing support tube surfaces;
Said control system comprises the motion control unit that is used to control linear axis, rotating shaft and Z axle module, and the laser controlling unit that is used to control laser generator; Said control system is connected with linear axis, rotating shaft, Z axle module, laser generator, CCD.
2. the laser process equipment of intravascular stent as claimed in claim 1 is characterized in that, said rotating shaft comprises motor, shaft coupling, worm screw, worm gear, pull bar module, shell, end cap, chuck;
Said pull bar module comprises pull bar lid, piston, draw-bar seat, rolling bearing, axle sleeve, pull bar, and pull bar is a hollow structure;
One end of said shell is provided with pull bar lid, draw-bar seat, and the other end is provided with end cap; Be provided with piston, axle sleeve, rolling bearing between said pull bar lid, the draw-bar seat; The both sides of piston are respectively equipped with first air cavity, second air cavity, and first air cavity, second air cavity are respectively equipped with the gateway, charge and discharge gas through the gateway; Said chuck is arranged at an end of pull bar, passes end cap and exposes a part; Chuck is through being screwed into the other end screwed hole of pull bar module from the end of rotating shaft near the pull bar lid;
Said shaft coupling is connected the output shaft of motor with worm shaft, worm and wheel cooperates, and said worm gear and pull bar are coaxial, and worm-wheel shaft is pull rod shaft; The rotation of motor finally drives pull rod shaft and rotatablely moves;
When clamping tubing, first air cavity is filled, high pressure gas is known from experience the pushing drawing rod module and is moved towards first direction; Thereby drive shell, end inner cap and end cap together towards the first direction motion, till the internal conical surface and the outer conical surface of chuck of end cap were close to, the end cap continuation was moved to first direction; Cause collet to tighten up; Tubing is embraced, kept this state, tubing will be held tightly by chuck always;
In the time of need unclamping tubing; Be the inflation of second air cavity, the venting of first air cavity; Thereby gases at high pressure drive the pull bar module and promote shell, hold inner cap and end cap to move towards second direction towards the second direction motion, and then make the outer conical surface of collet and the internal conical surface of end cap be separated, and keep releasing orientation; This moment, collet relied on the elastic-restoring force of self to keep releasing orientation, and tubing is with released.
3. the laser process equipment of intravascular stent as claimed in claim 2 is characterized in that, said piston comprises cover in piston bush, the piston, wherein is arranged with the sealing of 0 shape sealing ring in piston bush, the piston.
4. the laser process equipment of intravascular stent as claimed in claim 2 is characterized in that, is provided with the end inner cap between said end cap and the enclosing cover.
5. the laser process equipment of intravascular stent as claimed in claim 2 is characterized in that, said shaft device comprises base, and said shell is arranged on this base.
6. the laser process equipment of intravascular stent as claimed in claim 2 is characterized in that, said pull bar is the hollow seamless pipe.
7. the laser process equipment of intravascular stent as claimed in claim 2 is characterized in that, an end of said pull bar is provided with the pull bar knob, manually rotating rod.
8. the laser process equipment of intravascular stent as claimed in claim 1; It is characterized in that; Said control system is installed in the PC or is installed in the hand-held mobile terminal, and PC or hand-held mobile terminal are connected with linear axis, rotating shaft, Z axle module, laser generator, CCD through the control cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220024816 CN202506974U (en) | 2012-01-19 | 2012-01-19 | Laser processing device for intravascular stent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220024816 CN202506974U (en) | 2012-01-19 | 2012-01-19 | Laser processing device for intravascular stent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202506974U true CN202506974U (en) | 2012-10-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220024816 Withdrawn - After Issue CN202506974U (en) | 2012-01-19 | 2012-01-19 | Laser processing device for intravascular stent |
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| Country | Link |
|---|---|
| CN (1) | CN202506974U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103212864B (en) * | 2012-01-19 | 2015-12-02 | 昆山思拓机器有限公司 | A kind of laser process equipment of intravascular stent |
| CN111001950A (en) * | 2019-12-26 | 2020-04-14 | 上海百心安生物技术有限公司 | Processing method and processing device of vascular stent structure |
| CN111069769A (en) * | 2019-12-31 | 2020-04-28 | 江苏尼科医疗器械有限公司 | Laser processing method of metal inner tube of guide catheter |
-
2012
- 2012-01-19 CN CN 201220024816 patent/CN202506974U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103212864B (en) * | 2012-01-19 | 2015-12-02 | 昆山思拓机器有限公司 | A kind of laser process equipment of intravascular stent |
| CN111001950A (en) * | 2019-12-26 | 2020-04-14 | 上海百心安生物技术有限公司 | Processing method and processing device of vascular stent structure |
| CN111069769A (en) * | 2019-12-31 | 2020-04-28 | 江苏尼科医疗器械有限公司 | Laser processing method of metal inner tube of guide catheter |
| CN111069769B (en) * | 2019-12-31 | 2022-02-25 | 江苏尼科医疗器械有限公司 | Laser processing method of metal inner tube of guide catheter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121031 Effective date of abandoning: 20151202 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |