CN106901799A - A kind of thrombectomby system, preparation method and method of work - Google Patents
A kind of thrombectomby system, preparation method and method of work Download PDFInfo
- Publication number
- CN106901799A CN106901799A CN201710242265.6A CN201710242265A CN106901799A CN 106901799 A CN106901799 A CN 106901799A CN 201710242265 A CN201710242265 A CN 201710242265A CN 106901799 A CN106901799 A CN 106901799A
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- CN
- China
- Prior art keywords
- microtubular
- screen pack
- elastic screen
- atherectomy catheter
- seal wire
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00526—Methods of manufacturing
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22038—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with a guide wire
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22094—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for for crossing total occlusions, i.e. piercing
Abstract
The invention discloses a kind of thrombectomby system, preparation method and method of work, wherein, thrombectomby system includes atherectomy catheter, microtubular and elastic screen pack;The atherectomy catheter is contained within bung flange, and microtubular is stretched into atherectomy catheter and is arranged in the center of bung flange;The end of the atherectomy catheter is additionally provided with two cylinders of mutual fit, respectively outer barrel and inner cylinder;Outer barrel is a rotor and is fixedly connected with bung flange that inner cylinder is attached on atherectomy catheter;One end of elastic screen pack is fixed on microtubular, and the other end is connected with seal wire;The elastic screen pack, microtubular, bung flange and atherectomy catheter are coaxially disposed, and the seal wire is arranged at the axle center of elastic screen pack, microtubular, bung flange and atherectomy catheter;When elastic screen pack and microtubular pass through thrombus, during traction seal wire, traction seal wire struts elastic screen pack, so as to reach the effect of filtering blood;Seal wire, elastic screen pack reinstatement state are decontroled after the completion of thrombus cutting.
Description
Technical field
The invention belongs to medical device field, more particularly to a kind of thrombectomby system, preparation method and method of work.
Background technology
For embolism lesion, bolt is typically clinically taken with machinery using medicine thrombolysis and is treated, because medicine thrombolysis is tight
Time window limitation and the more complication of lattice, most of patient can take machinery to take the therapeutic modality of bolt.
Existing machinery takes bolt and all has a disadvantage that substantially:The patch being likely to occur during thrombectomby comes off or blood
Stud portion is come off the distal end " rubbish pin " caused, and after causing to take bolt, the thrombus fragment for coming off can not completely be reclaimed and excreted, can
Can trigger pulmonary embolism.Therefore needing a kind of machinery to take pin device can effectively release the spot being likely to occur during thrombectomby
The distal end " rubbish pin " that block is come off or thrombus partial exfoliation is caused, it is to avoid the flowing of thrombus fragment forms new thrombus, it is right to strengthen
The interception of thrombus, reduces the generation of pulmonary embolism, while improving thrombus fragment elimination efficiency and security.
The content of the invention
In order to solve the shortcoming of prior art, the first object of the present invention is to provide a kind of thrombectomby system, the system
The possibility that patch comes off or thrombus partial exfoliation causes distal end " rubbish pin " to occur during thrombectomby can be avoided, blood is improved
Bolt fragment elimination efficiency and security.
A kind of thrombectomby system of the invention, including atherectomy catheter, microtubular and elastic screen pack;
The atherectomy catheter is contained within bung flange, and microtubular is stretched into atherectomy catheter and is arranged in the center of bung flange;The rotation
The end of incisal guide pipe is additionally provided with two cylinders of mutual fit, respectively outer barrel and inner cylinder;Outer barrel is a rotor and and bung flange
It is fixedly connected, inner cylinder is attached on atherectomy catheter;
One end of elastic screen pack is fixed on microtubular, and the other end is connected with seal wire;The elastic screen pack, micro- lead
Pipe, bung flange and atherectomy catheter are coaxially disposed, and the seal wire is arranged at the axle of elastic screen pack, microtubular, bung flange and atherectomy catheter
Center;When elastic screen pack and microtubular pass through thrombus, during traction seal wire, traction seal wire struts elastic screen pack, from
And reach the effect of filtering blood;Seal wire, elastic screen pack reinstatement state are decontroled after the completion of thrombus cutting.
Further, the hardness subsection setup of the microtubular, its hardness is vertically by the head end terminad of atherectomy catheter
Direction softens gradually.
The present invention by by the hardness subsection setup of microtubular, the hardness of microtubular vertically from atherectomy catheter head end to
End direction softens gradually, so after microtubular enters thrombus area, prevents because the hardness of microtubular is really up to the mark, and damages bag
The blood vessel of thrombus is enclosed, the security for removing thrombus in blood vessel is improve.
Further, the head end of the atherectomy catheter is connected by electromagnetic clutch with actuating unit.
Wherein, electromagnetic clutch controls the engagement of clutch and separates by the power on/off of coil.Electromagnetic clutch can divide
For:Dry single-disk electromagnetic clutch, dry-type multidisc electromagnetic clutch, wet type multi-disc electromagnetic clutch, magnetic powder cluth, slip type
Electromagnetic clutch etc..Electromagnetic clutch working method can be divided into again:It is powered and combines and power-off combination.The characteristics of electromagnetic clutch
It is:(1) high-speed response:Because being dry type class the reception and registration of torsion quickly, can reach and easily act.(2) durability is strong:
Heat dispersal situations are good, and used senior material, even high-frequency, the use of high-energy is also very durable.(3) group
Dress is safeguarded easy:Belong to the ball bearing static shape of built-in field coil, so middle stamen need not be taken out that carbon need not also be utilized
Brush, using simple.(4) act certain:Using tabular shell fragment, though there is the sharp pounding will not also to produce loosening, durability is good.
Actuating unit can use motor or other actuating units.
Further, the aperture ratio near elastic screen pack one end of microtubular is another away from the elastic screen pack of microtubular
Stomidium footpath is small.Will so be caught by screen pack when there is part thrombus breaks loose to be flowed away with blood flow, be decontroled after the completion of thrombus cutting
Be trapped in the thrombus chip of filtering in screen pack by seal wire, screen pack reinstatement state, so just avoids thrombectomby process
Middle patch comes off or thrombus partial exfoliation cause distal end " rubbish pin " occur possibility.
Further, the bung flange is stainless steel coil.Bung flange of the invention uses stainless steel coil, it is ensured that thrombus is cut
Except system is in use to the security of blood vessel.
Further, the aperture near elastic screen pack one end of microtubular is 0.1mm.So ensure that thrombus chip
It is trapped in screen pack, so just avoids that patch during thrombectomby comes off or thrombus partial exfoliation causes distal end " rubbish
The possibility that pin " occurs.
The second object of the present invention is to provide a kind of preparation method of thrombectomby system.
The preparation method of thrombectomby system of the invention, including:
A microtubular is arranged in the outside of seal wire, and an elasticity filtering is connected between one end of seal wire and microtubular
Net;
One end of microtubular is also arranged an atherectomy catheter, and bung flange is arranged in atherectomy catheter, in the end of atherectomy catheter also
Two cylinders of mutual fit, respectively outer barrel and inner cylinder are set;Outer barrel is fixedly connected on bung flange for a rotor, and inner cylinder is attached to
On atherectomy catheter;
Elastic screen pack, microtubular, bung flange and atherectomy catheter are coaxially disposed, seal wire be located at elastic screen pack, microtubular,
The axle center of bung flange and atherectomy catheter.
Further, the method also includes:By the hardness subsection setup of microtubular, its hardness is vertically by atherectomy catheter
Head end terminad direction softens gradually.
Further, the method also includes:Will be close to the setting ratio of the pore size of elastic screen pack one end of microtubular
Elastic screen pack other end aperture away from microtubular is small.
The third object of the present invention is to provide a kind of method of work of thrombectomby system.
The method of work of thrombectomby system of the invention, including:
Step 1:When elastic screen pack and microtubular pass through thrombus, during traction seal wire, traction seal wire supports elastic screen pack
Open, so as to reach the effect of filtering blood;
Step 2:Seal wire, elastic screen pack reinstatement state are decontroled after the completion of thrombus cutting.
Beneficial effects of the present invention are:
(1) using elastic screen pack, microtubular, bung flange and the atherectomy catheter being coaxially disposed, seal wire is arranged at bullet to the present invention
Property screen pack, microtubular, bung flange and atherectomy catheter axle center, elastic screen pack and microtubular pass through thrombus, and traction is led
During silk, traction seal wire struts elastic screen pack, so as to reach the effect of filtering blood;Seal wire is decontroled after the completion of thrombus cutting,
Elastic screen pack reinstatement state, can so avoid that patch during thrombectomby comes off or thrombus partial exfoliation causes distal end
The possibility that " rubbish pin " occurs, improves thrombus fragment elimination efficiency and security.
(2) present invention is by the way that by the hardness subsection setup of microtubular, the hardness of microtubular is vertically by the head of atherectomy catheter
End terminad direction softens gradually, so after microtubular enters thrombus area, prevents because the hardness of microtubular is really up to the mark, and damages
Wound surrounds the blood vessel of thrombus, improves the security for removing thrombus in blood vessel.
Brief description of the drawings
The Figure of description for constituting the part of the application is used for providing further understanding of the present application, and the application's shows
Meaning property embodiment and its illustrated for explaining the application, does not constitute the improper restriction to the application.
Fig. 1 is the form before elastic screen pack is strutted in the blood vessel;
Fig. 2 is that elastic screen pack struts front and rear form in the blood vessel;
Fig. 3 is the location drawing of elastic screen pack;
Fig. 4 is the structural representation of atherectomy catheter;
Fig. 5 is the preparation method flow chart of thrombectomby system of the invention;
Fig. 6 is the flow chart of work methods of thrombectomby system of the invention.
Wherein, 1, elastic screen pack;2nd, microtubular;3rd, atherectomy catheter;4th, seal wire;5th, bung flange.
Specific embodiment
It is noted that described further below is all exemplary, it is intended to provide further instruction to the application.Unless another
Indicate, all technologies used herein and scientific terminology are with usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
Be also intended to include plural form, additionally, it should be understood that, when in this manual use term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
As Figure 1-Figure 4, a kind of thrombectomby system of the invention, including atherectomy catheter, microtubular and elasticity filtering
Net.
Wherein, atherectomy catheter 3 is contained within bung flange 5, and microtubular is stretched into atherectomy catheter 3 and is arranged in the center of bung flange 5;Institute
The end for stating atherectomy catheter 3 is additionally provided with two cylinders of mutual fit, respectively outer barrel and inner cylinder;Outer barrel be a rotor and with
Bung flange 5 is fixedly connected, and inner cylinder is attached on atherectomy catheter 3;
As shown in Figure 3 and Figure 4, one end of elastic screen pack 1 is fixed on microtubular 2, and the other end is connected with seal wire 4;Institute
State elastic screen pack 1, microtubular 2, bung flange 5 and atherectomy catheter 3 to be coaxially disposed, the seal wire 4 is arranged at elastic screen pack 1, micro-
The axle center of conduit 2, bung flange 5 and atherectomy catheter 3;When elastic screen pack 1 and microtubular 2 pass through thrombus, seal wire 4 is drawn
When, traction seal wire struts elastic screen pack, so as to reach the effect of filtering blood, as shown in Figure 2;Put after the completion of thrombus cutting
Convince silk by patient analysis, elastic screen pack reinstatement state, as shown in Figure 1.
Wherein, the hardness subsection setup of microtubular 2, its hardness vertically by atherectomy catheter 3 head end terminad direction gradually
Secondary softening.
The present invention by by the hardness subsection setup of microtubular, the hardness of microtubular vertically from atherectomy catheter head end to
End direction softens gradually, so after microtubular enters thrombus area, prevents because the hardness of microtubular is really up to the mark, and damages bag
The blood vessel of thrombus is enclosed, the security for removing thrombus in blood vessel is improve.
Wherein, the head end of atherectomy catheter 3 is connected by electromagnetic clutch with actuating unit.
Electromagnetic clutch controls the engagement of clutch and separates by the power on/off of coil.Electromagnetic clutch can be divided into:It is dry
Formula monolithic electromagnetic clutch, dry-type multidisc electromagnetic clutch, wet type multi-disc electromagnetic clutch, magnetic powder cluth, slip type electromagnetism
Clutch etc..Electromagnetic clutch working method can be divided into again:It is powered and combines and power-off combination.
The characteristics of electromagnetic clutch is:(1) high-speed response:Because be dry type class the reception and registration of torsion quickly, Ke Yida
To easily acting.(2) durability is strong:Heat dispersal situations are good, and used senior material, even high-frequency, high energy
The use of amount, it is also very durable.(3) assembling is safeguarded easy:Belong to the ball bearing static shape of built-in field coil, so being not required to
Middle stamen is taken out need not also utilize carbon brush, using simple.(4) act certain:Using tabular shell fragment, though there is not sharp pounding also not
Loosening can be produced, durability is good.
Actuating unit can use motor or other actuating units.
In the present embodiment, elastic mistake of the aperture ratio of one end of elastic screen pack 1 of close microtubular 2 away from microtubular 2
The other end aperture of filter screen 1 is small.
Will so be caught by screen pack when there is part thrombus breaks loose to be flowed away with blood flow, be decontroled after the completion of thrombus cutting and led
Silk, be trapped in the thrombus chip of filtering in screen pack by screen pack reinstatement state, during so just avoiding thrombectomby
Patch comes off or thrombus partial exfoliation cause distal end " rubbish pin " occur possibility.
In the present embodiment, bung flange 5 is stainless steel coil.Bung flange of the invention 5 uses stainless steel coil, it is ensured that thrombus
Excision system is in use to the security of blood vessel.
In the present embodiment, the aperture near one end of elastic screen pack 1 of microtubular 2 is 0.1mm.So ensure that blood
Bolt chip is trapped in screen pack, so just avoids that patch during thrombectomby comes off or thrombus partial exfoliation causes distal end
The possibility that " rubbish pin " occurs.
The present invention is arranged at elastic mistake using elastic screen pack, microtubular, bung flange and the atherectomy catheter being coaxially disposed, seal wire
The axle center of filter screen, microtubular, bung flange and atherectomy catheter, elastic screen pack and microtubular pass through thrombus, during traction seal wire,
Traction seal wire struts elastic screen pack, so as to reach the effect of filtering blood;Seal wire, elastic mistake are decontroled after the completion of thrombus cutting
Filter screen reinstatement state, can so avoid that patch during thrombectomby comes off or thrombus partial exfoliation causes distal end " rubbish
The possibility that pin " occurs, improves thrombus fragment elimination efficiency and security.
The present invention by by the hardness subsection setup of microtubular, the hardness of microtubular vertically from atherectomy catheter head end to
End direction softens gradually, so after microtubular enters thrombus area, prevents because the hardness of microtubular is really up to the mark, and damages bag
The blood vessel of thrombus is enclosed, the security for removing thrombus in blood vessel is improve.
Fig. 5 is the preparation method flow chart of thrombectomby system of the invention.
As shown in figure 5, the preparation method of thrombectomby system of the invention, including:
A microtubular is arranged in the outside of seal wire, and an elasticity filtering is connected between one end of seal wire and microtubular
Net;
One end of microtubular is also arranged an atherectomy catheter, and bung flange is arranged in atherectomy catheter, in the end of atherectomy catheter also
Two cylinders of mutual fit, respectively outer barrel and inner cylinder are set;Outer barrel is fixedly connected on bung flange for a rotor, and inner cylinder is attached to
On atherectomy catheter;
Elastic screen pack, microtubular, bung flange and atherectomy catheter are coaxially disposed, seal wire be located at elastic screen pack, microtubular,
The axle center of bung flange and atherectomy catheter.
Further, the method also includes:By the hardness subsection setup of microtubular, its hardness is vertically by atherectomy catheter
Head end terminad direction softens gradually.
Further, the method also includes:Will be close to the setting ratio of the pore size of elastic screen pack one end of microtubular
Elastic screen pack other end aperture away from microtubular is small.
Fig. 6 is the flow chart of work methods of thrombectomby system of the invention.
As shown in fig. 6, the method for work of thrombectomby system of the invention, including:
Step 1:When elastic screen pack and microtubular pass through thrombus, during traction seal wire, traction seal wire supports elastic screen pack
Open, so as to reach the effect of filtering blood;
Step 2:Seal wire, elastic screen pack reinstatement state are decontroled after the completion of thrombus cutting.
Although above-mentioned be described with reference to accompanying drawing to specific embodiment of the invention, not to present invention protection model
The limitation enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme those skilled in the art are not
Need the various modifications made by paying creative work or deformation still within protection scope of the present invention.
Claims (10)
1. a kind of thrombectomby system, it is characterised in that including atherectomy catheter, microtubular and elastic screen pack;
The atherectomy catheter is contained within bung flange, and microtubular is stretched into atherectomy catheter and is arranged in the center of bung flange;The rotary-cut is led
The end of pipe is additionally provided with two cylinders of mutual fit, respectively outer barrel and inner cylinder;Outer barrel is a rotor and is fixed with bung flange
Connection, inner cylinder is attached on atherectomy catheter;
One end of elastic screen pack is fixed on microtubular, and the other end is connected with seal wire;The elastic screen pack, microtubular, spiral shell
Circle and atherectomy catheter are coaxially disposed, and the seal wire is arranged at the axle centre bit of elastic screen pack, microtubular, bung flange and atherectomy catheter
Put;When elastic screen pack and microtubular pass through thrombus, during traction seal wire, traction seal wire struts elastic screen pack, so as to reach
The effect of filtering blood;Seal wire, elastic screen pack reinstatement state are decontroled after the completion of thrombus cutting.
2. a kind of thrombectomby system as claimed in claim 1, it is characterised in that the hardness subsection setup of the microtubular,
Its hardness is softened gradually by the head end terminad direction of atherectomy catheter vertically.
3. a kind of thrombectomby system as claimed in claim 1, it is characterised in that the head end of the atherectomy catheter passes through electromagnetism
Clutch connects with actuating unit.
4. a kind of thrombectomby system as claimed in claim 1, it is characterised in that near elastic screen pack one end of microtubular
Aperture ratio it is small away from the elastic screen pack other end aperture of microtubular.
5. a kind of thrombectomby system as claimed in claim 1, it is characterised in that the bung flange is stainless steel coil.
6. a kind of thrombectomby system as claimed in claim 4, it is characterised in that near elastic screen pack one end of microtubular
Aperture be 0.1mm.
7. the preparation method of a kind of thrombectomby system as any one of claim 1-6, it is characterised in that including:
Step 1:A microtubular is arranged in the outside of seal wire, and an elasticity filtering is connected between one end of seal wire and microtubular
Net;
Step 2:One end of microtubular is also arranged an atherectomy catheter, and bung flange is arranged in atherectomy catheter, in the end of atherectomy catheter
Also set up two cylinders of mutual fit, respectively outer barrel and inner cylinder;Outer barrel is fixedly connected on bung flange for a rotor, and inner cylinder is attached
On atherectomy catheter;
Step 3:Elastic screen pack, microtubular, bung flange and atherectomy catheter are coaxially disposed, seal wire is located at elastic screen pack, micro- leads
The axle center of pipe, bung flange and atherectomy catheter.
8. a kind of preparation method of thrombectomby system as claimed in claim 7, it is characterised in that the method also includes:Will
The hardness subsection setup of microtubular, its hardness is softened gradually by the head end terminad direction of atherectomy catheter vertically.
9. a kind of preparation method of thrombectomby system as claimed in claim 7, it is characterised in that the method also includes:Will
The setting of pore size of elastic screen pack one end of microtubular is close to than the elastic screen pack other end aperture away from microtubular
It is small.
10. the method for work of a kind of thrombectomby system as any one of claim 1-6, it is characterised in that including:
Step 1:When elastic screen pack and microtubular pass through thrombus, during traction seal wire, traction seal wire struts elastic screen pack, from
And reach the effect of filtering blood;
Step 2:Seal wire, elastic screen pack reinstatement state are decontroled after the completion of thrombus cutting.
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CN201710242265.6A CN106901799B (en) | 2017-04-12 | 2017-04-12 | A kind of thrombectomby system, preparation method and working method |
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CN106901799B CN106901799B (en) | 2019-04-09 |
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CN102327139A (en) * | 2006-06-30 | 2012-01-25 | 阿瑟罗迈德公司 | Atherectomy device |
CN102499734A (en) * | 2011-11-17 | 2012-06-20 | 祖茂衡 | Remover for thrombus in stents |
CN102688093A (en) * | 2012-06-20 | 2012-09-26 | 深圳市惠泰医疗器械有限公司 | Renal artery cold saline water radio frequency ablation controllable electrode catheter |
CN104622538A (en) * | 2015-03-12 | 2015-05-20 | 湖南瑞康通科技发展有限公司 | Thrombus excision system |
CN207462124U (en) * | 2017-04-12 | 2018-06-08 | 山东大学 | A kind of thrombectomby system |
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US5876414A (en) * | 1995-03-28 | 1999-03-02 | Straub Medical Ag | Catheter for detaching abnormal deposits from blood vessels in humans |
CN101123918A (en) * | 2004-03-04 | 2008-02-13 | 施特劳勃医疗器械股份公司 | Catheter for sucking, fragmenting removing material extractable from blood vessels |
CN102327139A (en) * | 2006-06-30 | 2012-01-25 | 阿瑟罗迈德公司 | Atherectomy device |
CN102014773A (en) * | 2008-04-23 | 2011-04-13 | 阿维格公司 | Catheter system and method for boring through blocked vascular passages |
CN102499734A (en) * | 2011-11-17 | 2012-06-20 | 祖茂衡 | Remover for thrombus in stents |
CN102688093A (en) * | 2012-06-20 | 2012-09-26 | 深圳市惠泰医疗器械有限公司 | Renal artery cold saline water radio frequency ablation controllable electrode catheter |
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