CN103212830A - Equipment for monitoring tube diameter change of medical stent - Google Patents
Equipment for monitoring tube diameter change of medical stent Download PDFInfo
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- CN103212830A CN103212830A CN2012100156839A CN201210015683A CN103212830A CN 103212830 A CN103212830 A CN 103212830A CN 2012100156839 A CN2012100156839 A CN 2012100156839A CN 201210015683 A CN201210015683 A CN 201210015683A CN 103212830 A CN103212830 A CN 103212830A
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Abstract
The invention relates to equipment for monitoring the tube diameter change of a medical stent, mainly aiming at solving the problems that a tube wall is damaged due to frequent contact between a measuring tool and the stent by adopting a contact measuring method in the prior art and a tube is tightly clamped by a rear-end fixture during continuous feeding because the tube diameter of the medical stent is out of tolerance. The technical scheme is that a feeding shaft, a non-contact precision measuring probe and a control system are adopted, measurement signals of the non-contact precision measuring probe are input into the control system, the control system controls the feeding shaft to feed, the control system is provided with an automatic alarming function, the non-contact precision measuring probe is arranged between a cutting area and a stent tube clamping area of stent laser cutting equipment, and the non-contact precision measuring probe conducts real-time tube diameter tolerance measurement to the section of the stent tube which passes through the measuring section of the measuring probe when the stent tube is fed during cutting. By adopting the technical scheme, the problems are better solved and the equipment can be used in the manufacturing industry of medical stent tube measuring equipment.
Description
Technical field
The present invention relates to a kind of equipment that medical support caliber changes of monitoring.
Background technology
Along with the fast development of material science and accurate micro-processing technology, medical timbering material kind is more and more, and more common have nonmetallic materials such as metal materials such as stainless steel 316L, Nitinol, cobalt-base alloys, pure iron, magnesium alloy, and macromolecule.Because medical support plays the hemangiectasis wall to stop vessel retraction even to cause and block the generation that causes various sufferers in blood vessel, require on the support on each muscle feature structural dimension parameter one to show and keep on the whole support each point tension force identical, this proposes requirements at the higher level to medical support processing technology.General medical support all adopts seamless tubular goods to process, because the insertion type operation is not comprehensive in global evolution, the medical material technical development is also unbalanced, in the world the tubing that is used as medical support do not had comparatively unified technical standard at present, and stipulate according to correlation experience oneself by medical support research institution or support manufacturer that generally medical support tubing provider stipulates to provide respective holder according to these.Consider that medical support seamless tubular goods adopts technological method for processing such as drawing to produce, because the defective of technology must be difficult to guarantee caliber tolerance uniformity on whole (general length can above 2 meters) support tubing.And the support tubing caliber tolerance integral body of giving medical support manufacturer need be controlled at ± the 10um scope in, in fact owing to process and the context of detection technical deficiency, can change greatly even overproof problem at the difference place of whole support tubing caliber inevitably.
Because certainly existing of the problems referred to above arranged, to carry out in the support laser cutting process in the rear end, the selection of frock clamp need be complementary with tubing caliber and tolerance, otherwise can cause wide uniformity tolerance of support muscle of cutting out at last etc. to be difficult to meet design requirement.And in case be after this specification caliber matches frock clamp in the support laser process equipment, but because of indivedual position caliber tolerance variation overshoot scopes on the tubing, then can cause tubing stuck by frock clamp in fill process, and then may cause electric rotating machine and linear electric motors momentary load to increase, electric current increases, motor self is overheated, if long-time unmanned the discovery may cause motor to burn out.In addition,, may go out laser always, cause security risk if in cutting process, be stuck.Therefore, must before the support laser cutting, the caliber of medical support tubing be monitored.
The method that tradition is used to monitor medical support tubing is at medical support tubing not before the material loading, measure two ends and middle each several caliber data of whole support one by one with the spiral micrometer, if meet about this specification caliber tolerance, think that promptly this support tubing can meet the demands, and can carry out material loading.This measuring method is owing to be not operate before the material loading, and be contact type measurement, may cause bending and survey tool directly to contact to cause the support outer pipe wall to damage and cause and scrap support tubing in the measuring process with tube material and tube wall, and medical support tubing is expensive, brings bigger cost pressure will inevitably for support manufacturer.In addition,, adopt this measuring method obviously can only on whole support tubing, carry out plurality of sections and measure, cause to be difficult to evade fully when causing charging by the stuck risk of bringing of frock clamp because of local caliber is overproof because whole support tubing is very long.
The present invention discloses a kind of On-line Measuring Method of monitoring medical support caliber tolerance variation, this method does not need to carry out independent caliber tolerance measurement before the charging of medical support tubing, in order to avoid cause the unnecessary damage of support tubing in this link, directly with support tubing clamping in the support laser cutting device, by the accurate gauge head of equipped with non-contact between support cutting zone and gripping section, carry out while processing on-line measurement, measure support tubing each section caliber and tolerance variation in real time, in case there is off-gage phenomenon to take place, control system will be reported to the police automatically, the back feed shaft of reporting to the police will stop no longer to continue charging automatically, evade fully continuing charging because of caliber is overproof and causing by the stuck situation generation of rear end frock clamp.
Summary of the invention
Technical problem to be solved by this invention is that medical support tube adopts contact type measurement to cause survey tool and support frequently to contact to cause tube wall to damage, and continue charging because of medical support caliber is overproof and cause by the stuck problem of rear end frock clamp, the invention provides a kind of new medical support tube caliber automatic measuring equipment, this equipment adopts contactless gauge head that support tubing caliber is measured, avoid the contact type measurement instrument because of frequent contact with support tubing to bring to damage and continue charging because of medical support caliber is overproof to tube wall cause by the rear end frock clamp stuck.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows: a kind of equipment of monitoring medical support caliber variation, comprise measurement device and watch-dog, described measurement device, form by measuring table and charging supporting module, be fixed with the axle system of measuring on the described measuring table, a described measurement system comprises rotating shaft, the platform below is provided with the measurement device control system, the automatic feed clamping device is housed on the described measuring table, fixed axis, linear axis, rotating shaft and correlation gauge head, the bush hole that has on the described charging clamping device, the described measuring table left and right sides is provided with the charging supporting module; Have signal generator and signal receiver in the correlation gauge head;
Described watch-dog is fixed on the laser cutting machine two-dimension moving platform, comprise contactless accurate gauge head and control system, contactless accurate gauge head signal input control system, the charging of described control system control rotating shaft, control system has automatic warning function, described contactless accurate gauge head is arranged between the cutting area and support tubing clamping district of support laser cutting device, has signal receiver and signal generator; During charging, the section that described contactless accurate gauge head is measured the cross section to support tubing through gauge head carries out the caliber tolerance measurement to support tubing in real time in cutting process.
In the technique scheme, the right-hand member of described fixed axis is equipped with chuck.Described fixed axis self is fixed on the linear axis of measuring table.Described correlation gauge head is arranged on the fixed axis right side, is fixed on the upper surface of linear axis.
In the technique scheme, the clamping tool of described supporting bracket tubing is installed in the right side of gauge head installation site.Described measuring system finds that the support caliber is overproof, and control system can be reported to the police automatically, and a charging of stopping the rotation.Described gauge head is installed in laser cutting machine two-dimension moving platform right side, also is provided with clamping lining, tubing chuck, linear axis on the described two-dimension moving platform.
Among the present invention, cutting area (end of keeping right) at the support laser cutting device) and between support tubing clamping district (end keeps left), a contactless accurate gauge head is installed, in case the charging in cutting process of support tubing, this gauge head carries out the caliber tolerance measurement with real-time section to support tubing process this its measurement cross section.Being installed in the right side of gauge head installation site at the clamping tool of low order end supporting bracket tubing, owing to adopt this mounting arrangement, must be support tubing measured caliber tolerance earlier, again the clamping tool by right-hand member.And in case find that at the measurement station support caliber is overproof, control system can be reported to the police automatically, feed shaft stops charging subsequently, can do not pushed clamping tool to the right by the overproof section of the measured caliber tolerance of gauge head, be taken place by the stuck situation of clamping tool thereby evaded fully because of tubing caliber tolerance is overproof.
The in-situ measurement equipment of the medical support caliber of monitoring disclosed by the invention tolerance variation is compared with traditional piping material caliber tolerance watch-dog, and following advantage is arranged:
1) before charging, support tubing be need not to carry out independent caliber tolerance measurement, got rid of conventional method fully and in this step manually-operated, caused tubing bending equivalent damage situation.
2) adopt non-contact measurement, evaded fully because of adopting contact type measurement to cause survey tool and support frequently to contact and caused the tube wall damage.
3) this method adopts online real-time measurement, can measure constantly each section caliber tolerance of whole support, in case finding overproof control system will report to the police automatically, the back feed shaft of reporting to the police will stop no longer to continue charging automatically, evade fully continuing charging because of caliber is overproof and causing by the stuck situation generation of rear end frock clamp.
The in-situ measurement equipment of medical support caliber tolerance variation of the present invention can also further improve, such as merging medical support tube caliber automatic measuring equipment, should form by measuring table and charging supporting module, be fixed with the axle system of measuring on the described measuring table, a described measurement system comprises rotating shaft, the platform below is provided with the measurement device control system, the automatic feed clamping device is housed on the described measuring table, fixed axis, linear axis, rotating shaft and correlation gauge head, the bush hole that has on the described charging clamping device, the described measuring table left and right sides is provided with the charging supporting module.
In the technique scheme, the right-hand member of described fixed axis is equipped with chuck.Described fixed axis self is fixed on the linear axis of measuring table.Described correlation gauge head is arranged on the fixed axis right side, is fixed on the upper surface of linear axis.
The medical support tubing caliber automatic measuring equipment that adopts carries out caliber tolerance all automatic measurement to it before the charging of medical support tubing, and with the measurement data backup, as the basic data of analyzing the monitoring of processing after-poppet dimensional tolerance.This equipment can be medical support manufacturer and supplied materials support tubing is carried out the caliber tolerance measurement facilitates in addition, can replace traditional manual measurement method fully, avoids causing support tubing bending equivalent damage in measuring process because of manual intervention.This measurement device adopts contactless gauge head that support tubing caliber is measured, and avoids the contact type measurement instrument to bring damage because of frequent the contact to tube wall with support tubing, thereby makes troubles even cause that support tubing is scrapped etc. to operation behind the support.
The present invention discloses a kind of On-line Measuring Method of monitoring medical support caliber tolerance variation, support tubing be need not to carry out independent caliber tolerance measurement before charging, has got rid of conventional method fully and cause the tubing degree of impairment in this step operation.Adopt non-contact measurement, evaded fully because of adopting contact type measurement to cause survey tool and support frequently to contact and caused the tube wall damage.In addition, this method adopts online real-time measurement, can measure constantly each section caliber tolerance of whole support, in case finding overproof measuring system will report to the police automatically, the back feed shaft of reporting to the police will stop no longer to continue charging automatically, evade fully continuing charging because of caliber is overproof and causing by the stuck situation generation of rear end frock clamp.By using this equipment, evaded the problem that exists in the conventional method fully, obtained better technical effect.
Description of drawings
Fig. 1 is installed in effect schematic diagram on the two-dimension moving platform for gauge head.
Fig. 2 measures the caliber principle schematic for gauge head.
Fig. 3 is contained in effect schematic diagram on the support laser cutting machine for gauge head.
Among Fig. 1,1 is the clamping lining; 2 is the correlation gauge head; 3 is support tubing; 4 is the tubing chuck; 5 is the two-dimension moving platform rotating shaft; 6 is linear axis.
Among Fig. 2,7 is signal receiver; 8 is signal generator; 9 is support tubing; 10 is two motion platforms.
Among Fig. 3,11 is the support laser cutting machine; 12 are the charging supporting module.
The invention will be further elaborated below by specific embodiment, but be not limited only to present embodiment.
Specific embodiment
[embodiment 1]
A kind of equipment of monitoring medical support caliber variation, comprise measurement device and watch-dog, described measurement device, form by measuring table and charging supporting module, be fixed with the axle system of measuring on the described measuring table, a described measurement system comprises rotating shaft, the platform below is provided with the measurement device control system, automatic feed clamping device, fixed axis, linear axis, rotating shaft and correlation gauge head are housed on the described measuring table, the bush hole that has on the described charging clamping device, the described measuring table left and right sides is provided with the charging supporting module; Have signal generator and signal receiver in the correlation gauge head;
Described watch-dog is fixed on the laser cutting machine two-dimension moving platform, comprise contactless accurate gauge head and control system, contactless accurate gauge head signal input control system, the charging of described control system control rotating shaft, control system has automatic warning function, described contactless accurate gauge head is arranged between the cutting area and support tubing clamping district of support laser cutting device, has signal receiver and signal generator; During charging, the section that described contactless accurate gauge head is measured the cross section to support tubing through gauge head carries out the caliber tolerance measurement to support tubing in real time in cutting process.
[embodiment 2]
The equipment that the medical support caliber of a kind of on-line monitoring changes, comprise measurement device and watch-dog, measurement device is made up of measuring table and charging supporting module, be fixed with the axle system of measuring on the described measuring table, a described measurement system comprises rotating shaft, the platform below is provided with the measurement device control system, automatic feed clamping device, fixed axis, linear axis, rotating shaft and correlation gauge head are housed on the described measuring table, the bush hole that has on the described charging clamping device, the described measuring table left and right sides is provided with the charging supporting module.
The right-hand member of described fixed axis is equipped with chuck.Described fixed axis self is fixed on the linear axis of measuring table.Described correlation gauge head is placed on the fixed axis right side, is fixed on the upper surface of linear axis.
Described watch-dog is fixed on the laser cutting machine two-dimension moving platform, comprise contactless accurate gauge head and control system, contactless accurate gauge head signal input control system, the charging of described control system control rotating shaft, control system has automatic warning function, described contactless accurate gauge head is arranged between the cutting area and support tubing clamping district of support laser cutting device, during charging, the section that described contactless accurate gauge head is measured the cross section to support tubing through gauge head carries out the caliber tolerance measurement to support tubing in real time in cutting process.
The right-hand member of described fixed axis is equipped with chuck.Described fixed axis self is fixed on the linear axis of measuring table.Described correlation gauge head is arranged on the fixed axis right side, is fixed on the upper surface of linear axis.Described gauge head is installed in laser cutting machine two-dimension moving platform right side, also is provided with clamping lining, tubing chuck, rotating shaft, linear axis on the described two-dimension moving platform.
[embodiment 3]
The equipment that the medical support caliber of a kind of on-line monitoring changes, described watch-dog is fixed on the laser cutting machine two-dimension moving platform, comprise contactless accurate gauge head and control system, contactless accurate gauge head signal input control system, the charging of described control system control rotating shaft, control system has automatic warning function, described contactless accurate gauge head is arranged between the cutting area and support tubing clamping district of support laser cutting device, during charging, the section that described contactless accurate gauge head is measured the cross section to support tubing through gauge head carries out the caliber tolerance measurement to support tubing in real time in cutting process.
Cutting area (end of keeping right) at the support laser cutting device) and between support tubing clamping district (end keeps left), a contactless accurate gauge head is installed, in case the charging in cutting process of support tubing, this gauge head carries out the caliber tolerance measurement with real-time section to support tubing process this its measurement cross section.Being installed in the right side of gauge head installation site at the clamping tool of low order end supporting bracket tubing, owing to adopt this mounting arrangement, must be support tubing measured caliber tolerance earlier, again the clamping tool by right-hand member.And in case find that at the measurement station support caliber is overproof, control system can be reported to the police automatically, feed shaft stops charging subsequently, can do not pushed clamping tool to the right by the overproof section of the measured caliber tolerance of gauge head, be taken place by the stuck situation of clamping tool thereby evaded fully because of tubing caliber tolerance is overproof.
[embodiment 4]
A kind of On-line Measuring Method of monitoring medical support caliber tolerance variation, this method is by being installed in correlation gauge head (among Fig. 1 2) tubing chuck on the interior two-dimension moving platform of support laser cutting machine (shown in Figure 3) (among Fig. 15 and 6) (among Fig. 1 4) and tubing near between the clamping lining of cutting zone (among Fig. 1 1), just in time allow support tubing (among Fig. 1 3) be between the signal generator (among Fig. 2 8) of correlation gauge head and the signal receiver (among Fig. 2 7), support tubing is placed directly on earlier on the charging supporting module (among Fig. 3 12), and pass rotating shaft on the two-dimension moving platform (among Fig. 1 5), tubing chuck (among Fig. 1 4) is passed in the centre, up to the cutting head that passes tubing lining (among Fig. 1 1) the right-hand member cutting zone of below.(among Fig. 1 3) passes the correlation gauge head earlier because support tubing, again to passing the right tubing lining of surveying, therefore, to the measurement of tubing caliber tolerance be earlier with penetrate the tubing lining and move.When tubing is in cut state, linear axis (among Fig. 1 6) can the driven rotary axle (among Fig. 1 5) moves right, and support tubing (among Fig. 1 3) is clamped on the chuck (among Fig. 1 4), and chuck is fixed on the rotating shaft, therefore is equivalent to linear axis and drives support tubing and carry out feed motion to the right.Give in the feeding process, tubing can progressively pass through the measured zone of correlation gauge head.As shown in Figure 2, the correlation gauge head comes support tubing is carried out the caliber tolerance measurement by non-contact measurement, principle is by signal generator emission light, these light are in the vertical cross-section, enough cover pipe diameter, thereby some light is blocked in the signal receiver that can't enter into the opposite by tubing, supposes that be L from signal generator generation light in vertical-direction length, and the signal receiver on opposite to accept the length of light be X, then measured support caliber D=L-X.
Owing to adopt non-contact measurement, can not cause any damage to the support outer pipe wall.In case measure the margin of tolerance that support tubing caliber exceeds its regulation, then control system can be reported to the police automatically, and then linear axis can stop tubing feed motion to the right immediately, thereby fine situation of having prevented right side tubing lining to block overproof tubing takes place.
[embodiment 5]
The equipment that the medical support caliber of a kind of on-line monitoring changes, described watch-dog is fixed on the laser cutting machine two-dimension moving platform, comprise contactless accurate gauge head and control system, contactless accurate gauge head signal input control system, the charging of described control system control rotating shaft, control system has automatic warning function, described contactless accurate gauge head is arranged between the cutting area and support tubing clamping district of support laser cutting device, during charging, the section that described contactless accurate gauge head is measured the cross section to support tubing through gauge head carries out the caliber tolerance measurement to support tubing in real time in cutting process.
Cutting area (end of keeping right) at the support laser cutting device) and between support tubing clamping district (end keeps left), a contactless accurate gauge head is installed, in case the charging in cutting process of support tubing, this gauge head carries out the caliber tolerance measurement with real-time section to support tubing process this its measurement cross section.Being installed in the right side of gauge head installation site at the clamping tool of low order end supporting bracket tubing, owing to adopt this mounting arrangement, must be support tubing measured caliber tolerance earlier, again the clamping tool by right-hand member.And in case find that at the measurement station support caliber is overproof, control system can be reported to the police automatically, feed shaft stops charging subsequently, can do not pushed clamping tool to the right by the overproof section of the measured caliber tolerance of gauge head, be taken place by the stuck situation of clamping tool thereby evaded fully because of tubing caliber tolerance is overproof.
The equipment that the medical support caliber of on-line monitoring changes also combines use with full-automatic support tubing caliber tolerance measurement equipment.
Caliber tolerance measurement equipment is made up of a measuring table and two charging supporting modules, this platform by natural granite as measuring table, be fixed with the axle system of measuring on it, the control system that the platform below is placed with measurement device is equipped with automatic feed clamping device, linear axis, rotating shaft and correlation gauge head on this measuring table.This measuring table left side is the charging supporting module, the right survey also is placed with a charging supporting module, support tubing is placed on the charging supporting module in left side before measuring, and passes the rotating shaft from measuring table, till the bush hole of passing on the automatic feed clamping device.
During measurement, chuck in the rotating shaft on the measured platform of support tubing clamps, move right with linear axis, drive the measured zone that support tubing passes the correlation gauge head that is fixed on the measuring table, because support tubing generally all grow (length is generally in 3m), the support tubing continuation after measured is supported by the charging supporting module on right side to the right.
After measuring, support tubing will be placed on the charging supporting module on right side fully, directly take off to put into support laser cutting device processing and get final product.
Claims (9)
1. monitor the equipment that medical support caliber changes for one kind, comprise measurement device and watch-dog, described measurement device, form by measuring table and charging supporting module, be fixed with the axle system of measuring on the described measuring table, a described measurement system comprises rotating shaft, the platform below is provided with the measurement device control system, automatic feed clamping device, fixed axis, linear axis, rotating shaft and correlation gauge head are housed on the described measuring table, the bush hole that has on the described charging clamping device, the described measuring table left and right sides is provided with the charging supporting module; Have signal generator and signal receiver in the correlation gauge head;
Described watch-dog is fixed on the laser cutting machine two-dimension moving platform, comprise contactless accurate gauge head and control system, contactless accurate gauge head signal input control system, the charging of described control system control rotating shaft, control system has automatic warning function, described contactless accurate gauge head is arranged between the cutting area and support tubing clamping district of support laser cutting device, has signal receiver and signal generator; During charging, the section that described contactless accurate gauge head is measured the cross section to support tubing through gauge head carries out the caliber tolerance measurement to support tubing in real time in cutting process.
2. the equipment that the medical support caliber of monitoring according to claim 1 changes is characterized in that the right-hand member of described measurement device fixed axis is equipped with chuck.
3. the equipment that the medical support caliber of monitoring according to claim 1 changes is characterized in that described measurement device fixed axis self is fixed on the linear axis of measuring table.
4. the equipment that the medical support caliber of monitoring according to claim 1 changes is characterized in that described measurement device correlation gauge head is arranged on the fixed axis right side, is fixed on the upper surface of linear axis.
5. the equipment that the medical support caliber of monitoring according to claim 1 changes is characterized in that described measuring table made by natural granite.
6. the equipment that the medical support caliber of monitoring according to claim 1 changes is characterized in that signal receiver in the correlation gauge head of measurement device is used for the light that the acknowledge(ment) signal generator sends.
7. the equipment that the medical support caliber of monitoring according to claim 1 changes is characterized in that the clamping tool of described watch-dog supporting bracket tubing is installed in the right side of gauge head installation site.
8. the equipment that the medical support caliber of monitoring according to claim 1 changes is characterized in that described watch-dog control system discovery support caliber is overproof, and control system can be reported to the police automatically, and stops feed shaft with charging.
9. the equipment that the medical support caliber of monitoring according to claim 1 changes, it is characterized in that described watch-dog gauge head is installed in laser cutting machine two-dimension moving platform right side, also is provided with clamping lining, tubing chuck, linear axis on the described two-dimension moving platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210015683.9A CN103212830B (en) | 2012-01-19 | 2012-01-19 | Equipment for monitoring tube diameter change of medical stent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210015683.9A CN103212830B (en) | 2012-01-19 | 2012-01-19 | Equipment for monitoring tube diameter change of medical stent |
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| CN103212830A true CN103212830A (en) | 2013-07-24 |
| CN103212830B CN103212830B (en) | 2017-02-08 |
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| US20070228023A1 (en) * | 2006-03-30 | 2007-10-04 | Klaus Kleine | Pulsed Synchronized Laser Cutting of Stents |
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2012
- 2012-01-19 CN CN201210015683.9A patent/CN103212830B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6160240A (en) * | 1997-10-14 | 2000-12-12 | Biotronik Mess-und Therapiegerate GmbH & Co Ingenieurburo Berlin | Method of producing microstructural medical implants |
| JP2001082932A (en) * | 1999-09-13 | 2001-03-30 | Canon Inc | Tool outside diameter measuring apparatus and its evaluating method |
| US20050259863A1 (en) * | 2000-05-04 | 2005-11-24 | Daniel Freifeld | Repetitive inspection system with intelligent tools |
| US20050035101A1 (en) * | 2001-06-14 | 2005-02-17 | Stephen Jones | Pulsed fiber laser cutting system for medical implants |
| US20070228023A1 (en) * | 2006-03-30 | 2007-10-04 | Klaus Kleine | Pulsed Synchronized Laser Cutting of Stents |
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| CN103212830B (en) | 2017-02-08 |
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