CN114985907A - Blood vessel stent and manufacturing method thereof - Google Patents
Blood vessel stent and manufacturing method thereof Download PDFInfo
- Publication number
- CN114985907A CN114985907A CN202210547149.6A CN202210547149A CN114985907A CN 114985907 A CN114985907 A CN 114985907A CN 202210547149 A CN202210547149 A CN 202210547149A CN 114985907 A CN114985907 A CN 114985907A
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- 210000004204 blood vessel Anatomy 0.000 title claims abstract description 33
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims abstract description 90
- 229910052715 tantalum Inorganic materials 0.000 claims abstract description 81
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 70
- 239000010935 stainless steel Substances 0.000 claims abstract description 70
- 238000003466 welding Methods 0.000 claims abstract description 53
- 230000002792 vascular Effects 0.000 claims abstract description 39
- 238000000034 method Methods 0.000 claims description 21
- 238000001727 in vivo Methods 0.000 abstract description 7
- 208000014674 injury Diseases 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229910000619 316 stainless steel Inorganic materials 0.000 description 1
- 208000018262 Peripheral vascular disease Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 208000026106 cerebrovascular disease Diseases 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000002059 diagnostic imaging Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/062—Shaping the laser beam, e.g. by masks or multi-focusing by direct control of the laser beam
- B23K26/0622—Shaping the laser beam, e.g. by masks or multi-focusing by direct control of the laser beam by shaping pulses
- B23K26/0624—Shaping the laser beam, e.g. by masks or multi-focusing by direct control of the laser beam by shaping pulses using ultrashort pulses, i.e. pulses of 1ns or less
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Biomedical Technology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Cardiology (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The application discloses a vascular stent and a manufacturing method thereof, wherein the manufacturing method of the vascular stent comprises the following steps: preparing a stainless steel bracket and a tantalum workpiece, wherein a hollow-out area matched with the tantalum workpiece is arranged on the stainless steel bracket; splicing the tantalum workpiece in the hollow area of the stainless steel bracket to obtain a workpiece to be welded; and (3) welding the spliced part of the tantalum workpiece and the stainless steel bracket on the workpiece to be welded through a nanosecond laser to obtain the blood vessel bracket with the tantalum mark. The technical problem that the intravascular stent manufactured by the prior art is low in-vivo positioning accuracy is solved.
Description
Technical Field
The application relates to the technical field of laser welding, in particular to a vascular stent and a manufacturing method thereof.
Background
Cerebrovascular diseases have high morbidity, high recurrence rate, high disability rate and high mortality, and with the progress of the times, the vascular stent implantation is an effective micro-trauma interventional therapy method, the method has the characteristics of small trauma to patients, high safety, high effectiveness and the like, is determined by doctors and patients, becomes an important treatment method for peripheral vascular diseases, and obtains remarkable curative effect after the application of the metal stent to clinical treatment. However, in the prior art, due to the low density of the metal base material for manufacturing the blood vessel stent, the image displayed by the blood vessel stent under the medical imaging equipment is not sharp enough, and the position and the shape of the stent are difficult to distinguish by naked eyes, so that a doctor is difficult to accurately position the stent in the operation and postoperative follow-up process.
Disclosure of Invention
The main purpose of the present application is to provide a vascular stent and a manufacturing method thereof, which aim to solve the technical problem that the vascular stent manufactured in the prior art has low accuracy of in vivo positioning.
In order to achieve the above object, the present application provides a method for manufacturing a vascular stent, which includes the steps of:
preparing a stainless steel bracket and a tantalum workpiece, wherein a hollow-out area matched with the tantalum workpiece is arranged on the stainless steel bracket;
splicing the tantalum workpiece in the hollow area of the stainless steel bracket to obtain a workpiece to be welded;
and (3) welding the spliced part of the tantalum workpiece and the stainless steel bracket on the workpiece to be welded through a nanosecond laser to obtain the blood vessel bracket with the tantalum mark.
Optionally, the step of performing tailor welding on the spliced position of the tantalum workpiece and the stainless steel stent on the workpiece to be welded by using a nanosecond laser to obtain the vascular stent with a tantalum mark includes:
positioning the splicing part of the tantalum workpiece and the stainless steel bracket on the workpiece to be welded through a machine vision system;
determining a welding pattern and the position of the welding pattern according to the shape, the specification and the position of the splicing part;
and (3) splicing and welding the spliced part based on the welding track corresponding to the welding pattern through a nanosecond laser to obtain the blood vessel stent with the tantalum mark.
Optionally, the weld pattern is circular with a diameter of 0.3-0.5 mm.
Optionally, the nanosecond laser has a power of 30-50W.
Optionally, the nanosecond laser has a waveform pulse width of 60-500 ns.
Optionally, the nanosecond laser has a welding speed of 60-150 mm/s.
Optionally, the nanosecond laser has a frequency of 600-1000 kHz.
Optionally, the width of the weld of the vascular stent is 80-150 μm.
Optionally, the nanosecond laser corresponds to a field lens model of SL-1064-112-163G.
The application also provides the vascular stent which is manufactured by the vascular stent manufacturing method.
The application provides a vascular stent and a manufacturing method thereof, which are characterized in that a stainless steel stent and a tantalum workpiece are prepared, wherein a hollowed-out area matched with the tantalum workpiece is arranged on the stainless steel stent, the hollowed-out area on the stainless steel stent is matched with the tantalum workpiece to be welded on the stainless steel stent, the tantalum workpiece is spliced in the hollowed-out area of the stainless steel stent to obtain the workpiece to be welded, the stainless steel stent and the tantalum workpiece are assembled, the spliced part of the tantalum workpiece and the stainless steel stent on the workpiece to be welded is spliced and welded through a nanosecond laser to obtain the vascular stent with a tantalum mark, the tantalum workpiece is fixed on the stainless steel stent, the developed image of the tantalum metal is clear, the tantalum metal is welded on the vascular stent prepared by welding the tantalum metal on the stainless steel stent, and the vascular stent can be positioned through the position of the tantalum metal after entering a human body, can effectively improve the accuracy of the blood vessel support in the in vivo positioning and overcome the technical problem that the blood vessel support manufactured by the prior art has lower accuracy in the in vivo positioning.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic flow chart illustrating a method for manufacturing a stent according to an embodiment of the present invention;
FIG. 2 is a schematic view of the structure of the stent of the present application;
fig. 3 is a schematic structural diagram of a weld seam on a stent of the present application.
The objectives, features, and advantages of the present application will be further described with reference to the accompanying drawings.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanying figures are described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In an embodiment of the present invention, referring to fig. 1, a method for manufacturing a vascular stent includes:
step S10, preparing a stainless steel bracket and a tantalum workpiece, wherein a hollow area matched with the tantalum workpiece is arranged on the stainless steel bracket;
in this embodiment, specifically, a stainless steel is used as a raw material to make a crude stainless steel stent, a to-be-cut region determined on the crude stainless steel stent is cut according to the to-be-cut region, a hollowed-out region is formed on the stainless steel stent after a portion corresponding to the to-be-cut region is removed, so as to obtain the stainless steel stent, wherein the stainless steel stent is a vascular stent made of a stainless steel as a main material, the stainless steel is 316 stainless steel, the tantalum workpiece is a workpiece made of tantalum metal as a raw material through processes of cutting, shaping and the like, the to-be-cut region can be determined according to a shape and a specification of the tantalum workpiece, that is, a to-be-cut region matched with the shape and the specification of the tantalum workpiece is divided at a preset development position of the stainless steel stent, for example, the tantalum workpiece is a circular workpiece with a mm diameter, and determining a circular area to be cut with the diameter of a mm at a preset development position of the stainless steel support, wherein the area to be cut can be designed and reserved on the stainless steel support according to the actual specification, shape and the like of the stainless steel support, and then, the tantalum workpiece is cut and shaped according to the size of the area to be cut, so that the tantalum workpiece matched with the shape and the specification of the area to be cut is obtained.
It is easy to understand that, in order to facilitate the assembly of the tantalum workpiece and the stainless steel bracket, the tantalum workpiece is matched with the hollow area, the shape and specification of the hollow area may be the same as those of the tantalum workpiece, and a certain matching error range may also be reserved, so that the actual specification of the hollow area is greater than that of the tantalum workpiece, and the tantalum workpiece may be smoothly assembled on the stainless steel bracket.
In an implementation manner, referring to fig. 2, the hollow-out area of the stainless steel stent is a circle with a diameter of 0.3-0.5mm, the tantalum workpiece is a circle with a diameter of 0.3-0.5mm, the circular tantalum metal with a diameter of 0.3-0.5mm can be clearly imaged in the developing process, the space of the vascular stent is not excessively increased, and the circular shape enables the part in contact with the blood vessel to be in a circular arc shape, so that the damage to the blood vessel can be reduced.
Step S20, splicing the tantalum workpiece in the hollow area of the stainless steel bracket to obtain a workpiece to be welded;
in this embodiment, specifically, the tantalum workpiece is spliced in the hollow area of the stainless steel bracket to obtain a workpiece to be spliced, which is formed by combining the tantalum workpiece and the stainless steel bracket, and it is easily understood that the splicing of the tantalum workpiece and the stainless steel bracket refers to a combination in a physical position, for example, the tantalum workpiece may be fixed in the hollow area of the stainless steel bracket by a friction force at the splicing position, or the tantalum workpiece may be fixed in the hollow area of the stainless steel bracket by a tool such as a clip.
And step S30, performing tailor welding on the splicing part of the tantalum workpiece and the stainless steel bracket on the workpiece to be welded through a nanosecond laser to obtain the blood vessel bracket with the tantalum mark.
In this embodiment, specifically, an infrared laser beam is emitted to the joint of the tantalum workpiece and the stainless steel bracket on the workpiece to be welded through a nanosecond laser, so that the tantalum workpiece and the stainless steel bracket close to the joint are spliced and welded together, and a vascular stent with a tantalum mark is obtained, wherein the nanosecond laser is a laser capable of generating nanosecond-level pulse light, and because a light spot generated by the nanosecond laser is small, the nanosecond laser is used for splicing and welding the tantalum workpiece and the stainless steel bracket, so that the width of a welding seam formed on the vascular stent after welding can be effectively controlled, and the influence of the welding on the surface roughness of the vascular stent can be effectively reduced through a splicing and welding mode, referring to fig. 3, it is easy to find that the welding seam generated on the vascular stent by the splicing and welding mode is recessed inwards relative to the surface of the vascular stent, so that the contact between the surface of the welding seam and the inner wall of the blood vessel can be effectively reduced, therefore, damage of the rough surface to the blood vessel after the blood vessel stent intervenes in the blood vessel can be effectively avoided, optionally, the width of a welding seam of the blood vessel stent is 80-150 mu m, the narrower width of the welding seam is more suitable for the blood vessel stent with smaller size, the influence on the surface smoothness of the blood vessel stent is smaller, and the damage of the rough surface to the blood vessel can be effectively reduced.
Optionally, the step of performing tailor welding on the joint of the tantalum workpiece and the stainless steel stent on the workpiece to be welded by using a nanosecond laser to obtain the vascular stent with the tantalum mark includes:
step S31, positioning the splicing position of the tantalum workpiece and the stainless steel bracket on the workpiece to be welded through a machine vision system;
in this embodiment, specifically, the to-be-welded workpiece and the joint of the tantalum workpiece and the stainless steel bracket on the to-be-welded workpiece are positioned by a CCD (Charge Coupled Device) machine vision system, where the machine vision system is a system that uses a machine to replace human eyes to perform various measurements and determinations, and since the blood vessel bracket has a small specification, positioning by naked eyes is difficult, and the machine vision system is favorable for improving the positioning accuracy.
Step S32, determining a welding pattern and the position of the welding pattern according to the shape, the specification and the position of the splicing part;
in the embodiment, specifically, the shape and specification of the joint of the tantalum workpiece and the stainless steel support are measured and determined, the shape and specification of the welding pattern of nanosecond laser welding are determined according to the shape and specification of the joint, and the position of the welding pattern is determined according to the position of the joint determined by positioning, wherein the welding pattern is used for determining the movement track and the welding range of the laser beam in the nanosecond laser welding process.
Optionally, the welding pattern is a circle with a diameter of 0.3-0.5mm, the circle with a diameter of 0.3-0.5mm can be clearly imaged in the developing process, the space of the blood vessel stent is not excessively increased, and the circle shape enables the part in contact with the blood vessel to be in a circular arc shape, so that damage to the blood vessel can be reduced.
And step S33, welding the spliced part through a nanosecond laser based on the welding track corresponding to the welding pattern to obtain the blood vessel stent with the tantalum mark.
In the embodiment, specifically, a welding track for emitting nanosecond laser for welding is determined according to the shape, specification and position of the welding pattern, a nanosecond laser is started to emit nanosecond laser beams, the laser beams are controlled to move along the welding track through a high-speed scanning galvanometer, and splicing welding is carried out on the spliced part, so that the blood vessel stent with the tantalum mark is obtained.
Optionally, the nanosecond laser has a power of 30-50W, so that the tantalum and the stainless steel can be tightly spliced and welded together, and the tantalum workpiece is prevented from falling off the vascular stent.
Optionally, the nanosecond laser has a waveform pulse width of 60-500ns, so that the tantalum and the stainless steel can be tightly spliced and welded together, and the tantalum workpiece is prevented from falling off the vascular stent.
Optionally, the nanosecond laser has a welding speed of 60-150mm/s, so that the tantalum and the stainless steel can be closely spliced and welded together, and the tantalum workpiece is prevented from falling off the vascular stent.
Optionally, the frequency of the nanosecond laser is 600-1000kHz, so that the tantalum and the stainless steel can be closely spliced and welded together, and the tantalum workpiece is prevented from falling off the vascular stent.
Optionally, the nanosecond laser corresponds to a field lens with model number SL-1064-112-163G, wherein the field lens is a lens which works near the focal plane of the objective lens and can effectively reduce the size of the detector, and the field lens is used for focusing the laser beam emitted by the nanosecond laser to the splicing position of the stainless steel support and the tantalum workpiece, wherein 1064 indicates that the laser wavelength is 1064nm, and 112 indicates that the scanning breadth of the field lens is 112mm × 112 mm; 163 represents the focal length of the field lens, and the field lens with the model number of SL-1064-.
In the embodiment, a stainless steel bracket and a tantalum workpiece are prepared, wherein a hollowed-out area matched with the tantalum workpiece is arranged on the stainless steel bracket, so that the hollowed-out area on the stainless steel bracket is matched with the tantalum workpiece to be welded on the stainless steel bracket, the tantalum workpiece is spliced in the hollowed-out area of the stainless steel bracket to obtain the workpiece to be welded, so that the stainless steel bracket and the tantalum workpiece are assembled, a nanosecond laser is used for splicing and welding the spliced part of the tantalum workpiece and the stainless steel bracket on the workpiece to be welded to obtain the vascular bracket with a tantalum mark, so that the tantalum workpiece is fixed on the stainless steel bracket, the development imaging of the tantalum metal is clear, the vascular bracket prepared by welding the tantalum metal on the stainless steel bracket can be positioned through the position of the tantalum metal after entering a human body, can effectively improve the accuracy of the blood vessel support in the in vivo positioning and overcome the technical problem that the blood vessel support manufactured by the prior art has lower accuracy in the in vivo positioning.
Furthermore, the invention also provides the vascular stent which is manufactured by the vascular stent manufacturing method, and the technical problem that the vascular stent manufactured by the prior art is low in-vivo positioning accuracy is solved. Compared with the prior art, the beneficial effects of the intravascular stent provided by the embodiment of the invention are the same as those of the intravascular stent manufacturing method of the embodiment, and are not repeated herein.
The above description is only a preferred embodiment of the present application, and not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings, or which are directly or indirectly applied to other related technical fields, are included in the scope of the present application.
Claims (10)
1. A manufacturing method of a blood vessel stent is characterized by comprising the following steps:
preparing a stainless steel bracket and a tantalum workpiece, wherein a hollow-out area matched with the tantalum workpiece is arranged on the stainless steel bracket;
splicing the tantalum workpiece in the hollow area of the stainless steel bracket to obtain a workpiece to be welded;
and (3) welding the spliced part of the tantalum workpiece and the stainless steel bracket on the workpiece to be welded through a nanosecond laser to obtain the blood vessel bracket with the tantalum mark.
2. The method for manufacturing the blood vessel stent according to claim 1, wherein the step of welding the joint of the tantalum workpiece and the stainless steel stent on the workpiece to be welded by a nanosecond laser to obtain the blood vessel stent with the tantalum mark comprises the following steps:
positioning the splicing position of the tantalum workpiece and the stainless steel bracket on the workpiece to be welded through a machine vision system;
determining a welding pattern and the position of the welding pattern according to the shape, the specification and the position of the splicing part;
and (3) splicing and welding the spliced part based on the welding track corresponding to the welding pattern through a nanosecond laser to obtain the blood vessel stent with the tantalum mark.
3. The method of claim 2, wherein the welding pattern is a circle having a diameter of 0.3-0.5 mm.
4. The method of claim 1, wherein the nanosecond laser has a power of 30W to 50W.
5. The method of claim 1, wherein the nanosecond laser has a waveform pulse width of 60-500 ns.
6. The method of claim 5, wherein the nanosecond laser is used at a welding speed of 60-150 mm/s.
7. The method of claim 1, wherein the nanosecond laser has a frequency of 600-1000 kHz.
8. The method for manufacturing a vascular stent according to claim 1, wherein the width of the welding seam of the vascular stent is 80-150 μm.
9. The method for manufacturing the vascular stent of claim 1, wherein the nanosecond laser corresponds to a field lens model of SL-1064-112-163G.
10. A vascular stent, characterized in that the vascular stent is manufactured by the method for manufacturing the vascular stent according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210547149.6A CN114985907A (en) | 2022-05-19 | 2022-05-19 | Blood vessel stent and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210547149.6A CN114985907A (en) | 2022-05-19 | 2022-05-19 | Blood vessel stent and manufacturing method thereof |
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| Publication Number | Publication Date |
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| CN114985907A true CN114985907A (en) | 2022-09-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202210547149.6A Pending CN114985907A (en) | 2022-05-19 | 2022-05-19 | Blood vessel stent and manufacturing method thereof |
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| Country | Link |
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| CN (1) | CN114985907A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116919685A (en) * | 2023-09-14 | 2023-10-24 | 乐普（北京）医疗器械股份有限公司 | Metal vascular stent, stent production method, press-holding forming device and protective sleeve |
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| CN111228005A (en) * | 2018-11-28 | 2020-06-05 | 杭州唯强医疗科技有限公司 | Convenient fixed development mechanism and intravascular stent thereof |
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2022
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| US6293966B1 (en) * | 1997-05-06 | 2001-09-25 | Cook Incorporated | Surgical stent featuring radiopaque markers |
| WO1999030643A1 (en) * | 1997-12-16 | 1999-06-24 | Cardiovasc, Inc. | Expandable stent having radiopaque marker and method |
| US20040015228A1 (en) * | 2000-08-17 | 2004-01-22 | Sylvie Lombardi | Implant with attached element and method of making such an implant |
| US20170042709A1 (en) * | 2000-08-18 | 2017-02-16 | Angiomed Gmbh & Co. Medizintechnik Kg | Implant with Attached Element and Method of Making Such an Implant |
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| US20040088039A1 (en) * | 2002-11-01 | 2004-05-06 | Lee Nathan T. | Method of securing radiopaque markers to an implant |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116919685A (en) * | 2023-09-14 | 2023-10-24 | 乐普（北京）医疗器械股份有限公司 | Metal vascular stent, stent production method, press-holding forming device and protective sleeve |
| CN116919685B (en) * | 2023-09-14 | 2023-12-15 | 乐普（北京）医疗器械股份有限公司 | Metal vascular stent, stent production method, press-holding forming device and protective sleeve |
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