CN1864649A - Centrosymmetric conjugation type equidistant constrictor for cylindrical net support - Google Patents
Centrosymmetric conjugation type equidistant constrictor for cylindrical net support Download PDFInfo
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- CN1864649A CN1864649A CNA2006100730940A CN200610073094A CN1864649A CN 1864649 A CN1864649 A CN 1864649A CN A2006100730940 A CNA2006100730940 A CN A2006100730940A CN 200610073094 A CN200610073094 A CN 200610073094A CN 1864649 A CN1864649 A CN 1864649A
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- conjugate tooth
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- distance collar
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Abstract
The biomedical engineering device is provided with one main body with n guide tracks, n quadrant blocks, conjugated gears, control pin and other parts. The conjugated gears can rotate clockwise or counterclockwise to make the n quadrant blocks move synchronously and centripetally or centrifugally. The biomedical engineering device has also pallet, spring, distance ring, etc. The present invention has been applied practically.
Description
Affiliated field
The present invention relates to the support constrictor, particularly the centrosymmetry conjugation type equidistant constrictor for cylindrical net support.
Background technology
Human blood vessel kind disease such as coronary stricture, cerebrovascular is fastened plug, has been pharmacotherapy or traditional operation therapy since hemangioma etc. are long-term.Introduced since the biomedical engineering technology, all kinds of garden tube networks based on the research and development of biomedical engineering science are widely used in above-mentioned treatment of diseases and demonstrate its superior curative effect.During this biomedical engineering technology is used, an important key technology is that cylinder network holder isodiametric is retracted on the sacculus induction system, so that utilize the sacculus induction system that garden tube network is accurately delivered to diseased region, and be located on blood vessel.This key technology success or not has influence of the utmost importance to medical effect.Early stage, technology was the simple hand instrument, caused non-isometrical contraction of garden tube network or torsional deformation easily.Though the later stage tab style cylinder network holder isodiametric contractor technology of development has had large increase than hand tools, but still there is fin and tightened and produce the tangential component of stress between support, influence the deflation assembly quality of support, require the new know-why of research further to improve.
Summary of the invention
The present invention seeks at the prior art defective, a kind of centrosymmetry conjugation type equidistant constrictor for cylindrical net support is provided, solve described key problem in technology.It is 80-116um that garden tube network adopts wall thickness usually, and diameter is that the medical stainless steel pipe of 1.6mm is engraved through the digital control laser precision and made.Its length is that 20-45mm does not wait, and requires to decide according to patient's sign and diseased region.Garden tube network project organization strictness is according to blood vessel kinetics, biomechanics, and the Elasticity calculating data, the appliance computer Aided Design forms.Its design guarantee garden tube network radial tension each to evenly, franchise is less than 0.1%.Global design and laser accurate processing technique have guaranteed that garden tube network has propelling movement property in the good blood vessel, compliance that blood vessel passes through and bendability.The purpose of this invention is to research and solve the key problem in technology that cylinder network holder isodiametric shrinks, promptly cylinder network holder isodiametric is tightened to carrying on the sacculus by the biomedical engineering designing requirement, in process of packing, make support all radial forces on the tube face of whole garden even, the distortion that is not distorted keeps its original design and make performance.
According to garden tube network structural mechanics characteristics, design is the continuous transformation diameter arbitrarily, simultaneously the support that is tightened only there is the centrosymmetry conjugation mechanism of radial effect power, produces uniform radial force and act on the tube network external cylindrical surface of garden, make its isometrical contraction.According to the mechanical engineering principle, design centre symmetry conjugate tooth makes its quadrant block of accurately controlling in each slide guide track synchronously entad do or centrifugal moving along track.When n (n is an even number) quadrant block synchronously when track moves to the center, the secter pat gap-closing makes center-hole diameter be reduced to d.
The centrosymmetry conjugation type equidistant constrictor for cylindrical net support, comprise body 1, quadrant block 2 and conjugate tooth 3, it is characterized in that establishing n guide rail in the body 1, be provided with n quadrant block 2 in the track, one side of quadrant block 2 is provided with the control pin, and this pin is assemblied in the cotter way of conjugate tooth 3; When conjugate tooth 3 turns clockwise, n the active force entad motion synchronously that quadrant block 2 is produced by conjugate tooth 3 cotter ways; When conjugate tooth 3 is rotated counterclockwise, n the synchronous centrifugal motion of active force that quadrant block 2 is produced by conjugate tooth 3 cotter ways; Establish a supporting plate 7 at the top of quadrant block 2, be fixed on the quadrant block 2 by bolt 8; It is located at the holder power that the spring 5 in body 1 spring 5 grooves makes progress all the time; Distance collar 6 is assemblied on the axle of body 1, and it is fastening by end cap 4, seals into rectangle with guide rail on the body 1, guarantees the accurate movement locus of quadrant block 2; Conjugate tooth 3 is linked on the distance collar 6, serve as the axle rotation with distance collar 6, and distance collar 6 can guarantee that conjugate tooth 3 both sides have rotary gap.
Turn clockwise when driven wheel 9 drives conjugate tooths 3, the top active force of conjugate tooth 3 cotter ways is in the bearing pin of quadrant block 2, overcomes the holder power that spring 5 makes progress quadrant block 2 is entad slided.The face of cylinder diameter of 2 envelopes of n quadrant block diminishes continuously, when quadrant block 2 closures, promptly reaches garden tube network and tightens the diameter d that requires at last.
Be rotated counterclockwise when driven wheel 9 drives conjugate tooth 3, the lower reaction power of conjugate tooth 3 cotter ways makes quadrant block 2 return to initial position under spring 5 auxiliary force combineds effect simultaneously in the bearing pin of quadrant block 2.
Centrosymmetry conjugation type equidistant constrictor for cylindrical net support constructed in accordance is used in biomedical engineering reality, and effect is remarkable.The practical application proof has the advantage of following uniqueness:
1, meets design requirement as long as make, this inventive principle makes garden tube network and system thereof not be subjected to any additional force in isometrical process of packing, assurance garden tube network only is subjected to the radial force of cylindrical radial face in the secter pat, guarantees that the cylinder network holder isodiametric contraction meets technical performance requirement original design and that make.
2, the inboard cylindrical radial face of secter pat equates that with the face of cylinder, the tube network outside, the garden curvature that is tightened the external cylindrical surface of cylindrical radial face and support all coincide at the deflation initial stage.The support external cylindrical surface evenly is subjected to radially, and the area of constrictive force reaches more than 90%.Successively decrease in process of packing medium-height trestle external cylindrical surface curvature, separate with the support external cylindrical surface gradually cylindrical radial face both sides in the secter pat.Finish to tightening, calculate by theoretical, the Separation of cylindrical radial face and support external cylindrical surface two-end-point is 0.0041mm in the secter pat, is decremented to 15 ° of angle positions of cylindrical radial face, only is 0.002mm.Consider the strain of garden tube network in process of packing, can think this invention technology of using, can make garden tube network external cylindrical surface in whole process of packing all the time with tighten that the cylindrical radial face coincide in the device secter pat.In present known cylinder network holder isodiametric contraction technology, still there is not this level that reaches.
3, because the driving wheel of this design can adopt manual control also can adopt the numerical control step motor drive, therefore good interface capability is arranged with the numerical control manufacturing.
Description of drawings
Accompanying drawing 1 of the present invention is a centrosymmetry conjugation type equidistant constrictor for cylindrical net support assembly structure sketch map; Accompanying drawing 2 is sacculus and garden tube network structural representation; Accompanying drawing 3 is a garden tube network structural representation.Wherein body 1, quadrant block 2, conjugate tooth 3, end cap 4, spring 5, distance collar 6, supporting plate 7, bolt 8, driven wheel 9.
The specific embodiment
Embodiment: I type centrosymmetry conjugation type equidistant constrictor for cylindrical net support, establish 12 guide rails in the body 1, be provided with 12 quadrant blocks 2 in the track, a side of quadrant block 2 is provided with the control pin, and this pin is assemblied in the cotter way of conjugate tooth 3; When conjugate tooth 3 turns clockwise, 12 active force entad motions synchronously that quadrant blocks 2 are produced by conjugate tooth 3 cotter ways; When conjugate tooth 3 is rotated counterclockwise, 12 synchronous centrifugal motions of active force that quadrant blocks 2 are produced by conjugate tooth 3 cotter ways; Establish a supporting plate 7 at the top of quadrant block 2, be fixed on the quadrant block 2 by bolt 8; It is located at the holder power that the spring 5 in body 1 spring 5 grooves makes progress all the time; Distance collar 6 is assemblied on the axle of body 1, and it is fastening by end cap 4, seals into rectangle with guide rail on the body 1, guarantees the accurate movement locus of quadrant block 2; Conjugate tooth 3 is linked on the distance collar 6, serve as the axle rotation with distance collar 6, and distance collar 6 can guarantee that conjugate tooth 3 both sides have rotary gap.Track, quadrant block 2 are Precision Machining and form, its overall dimensions, and the morpheme size all is set in the atomic little tolerance.
Turn clockwise when driven wheel 9 drives conjugate tooths 3, the top active force of conjugate tooth 3 cotter ways is in the bearing pin of quadrant block 2, overcomes the holder power that spring 5 makes progress quadrant block 2 is entad slided.The face of cylinder diameter of 2 envelopes of 12 quadrant blocks diminishes continuously, when quadrant block 2 closures, promptly reaches garden tube network and tightens the diameter d that requires at last.
Be rotated counterclockwise when driven wheel 9 drives conjugate tooth 3, the lower reaction power of conjugate tooth 3 cotter ways makes quadrant block 2 return to initial position under spring 5 auxiliary force combineds effect simultaneously in the bearing pin of quadrant block 2.The biomedical research and development of Dalian boundary skill company limited is used this apparatus in its coronary artery metal rack development and production, result of use is fine.
Claims (2)
1, centrosymmetry conjugation type equidistant constrictor for cylindrical net support, comprise body 1, quadrant block 2 and conjugate tooth 3, it is characterized in that establishing in the body 1 n guide rail, be provided with n quadrant block 2 in the track, one side of quadrant block 2 is provided with the control pin, and this pin is assemblied in the cotter way of conjugate tooth 3; When conjugate tooth 3 turns clockwise, n the active force entad motion synchronously that quadrant block 2 is produced by conjugate tooth 3 cotter ways; When conjugate tooth 3 is rotated counterclockwise, n the synchronous centrifugal motion of active force that quadrant block 2 is produced by conjugate tooth 3 cotter ways; Establish a supporting plate 7 at the top of quadrant block 2, be fixed on the quadrant block by bolt 8; It is located at the holder power that the spring 5 in body 1 spring 5 grooves makes progress all the time; Distance collar 6 is assemblied on the axle of body 1, and it is fastening by end cap 4, seals into rectangle with guide rail on the body 1, guarantees the accurate movement locus of quadrant block 2; Conjugate tooth 3 is linked on the distance collar 6, serve as the axle rotation with distance collar 6, and distance collar 6 can guarantee that conjugate tooth 3 both sides have rotary gap.
2, according to right 1 described centrosymmetry conjugation type equidistant constrictor for cylindrical net support, it is characterized in that establishing in the body 1 12 guide rails, be provided with 12 quadrant blocks 2 in the track, a side of quadrant block 2 is provided with the control pin, and this pin is assemblied in the cotter way of conjugate tooth 3; When conjugate tooth 3 turns clockwise, 12 active force entad motions synchronously that quadrant blocks 2 are produced by conjugate tooth 3 cotter ways; When conjugate tooth 3 is rotated counterclockwise, 12 synchronous centrifugal motions of active force that quadrant blocks 2 are produced by conjugate tooth 3 cotter ways; Establish a supporting plate 7 at the top of quadrant block 2, be fixed on the quadrant block 2 by bolt 8; It is located at the holder power that the spring 5 in body 1 spring 5 grooves makes progress all the time; Distance collar 6 is assemblied on the axle of body 1, and it is fastening by end cap 4, seals into rectangle with guide rail on the body 1, guarantees the accurate movement locus of quadrant block 2; Conjugate tooth 3 is linked on the distance collar 6, serve as the axle rotation with distance collar 6, and distance collar 6 can guarantee that conjugate tooth 3 both sides have rotary gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100730940A CN100435758C (en) | 2006-04-13 | 2006-04-13 | Centrosymmetric conjugation type equidistant constrictor for cylindrical net support |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100730940A CN100435758C (en) | 2006-04-13 | 2006-04-13 | Centrosymmetric conjugation type equidistant constrictor for cylindrical net support |
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| Publication Number | Publication Date |
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| CN1864649A true CN1864649A (en) | 2006-11-22 |
| CN100435758C CN100435758C (en) | 2008-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006100730940A Expired - Fee Related CN100435758C (en) | 2006-04-13 | 2006-04-13 | Centrosymmetric conjugation type equidistant constrictor for cylindrical net support |
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Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2303639Y (en) * | 1997-06-13 | 1999-01-13 | 哈尔滨工业大学 | Tube-like holder for blood vessel and cavity visceral organ of humanbody |
| US5906619A (en) * | 1997-07-24 | 1999-05-25 | Medtronic, Inc. | Disposable delivery device for endoluminal prostheses |
| US6143021A (en) * | 1998-07-10 | 2000-11-07 | American Medical Systems, Inc. | Stent placement instrument and method of assembly |
| US6582460B1 (en) * | 2000-11-20 | 2003-06-24 | Advanced Cardiovascular Systems, Inc. | System and method for accurately deploying a stent |
| US6755854B2 (en) * | 2001-07-31 | 2004-06-29 | Advanced Cardiovascular Systems, Inc. | Control device and mechanism for deploying a self-expanding medical device |
| ITTO20030037A1 (en) * | 2003-01-24 | 2004-07-25 | Sorin Biomedica Cardio S P A Ora S Orin Biomedica | CATHETER DRIVE DEVICE. |
| CN2926417Y (en) * | 2004-08-17 | 2007-07-25 | 程吾 | Handle of inductive electronic lock |
| CN100349559C (en) * | 2004-11-17 | 2007-11-21 | 大连大学 | Flange plate type cylinder network holder isodiametric contractor |
| CN100425206C (en) * | 2005-01-06 | 2008-10-15 | 大连大学 | Taper sleeve type iso-radius contractor for cylindrical reticular stent |
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2006
- 2006-04-13 CN CNB2006100730940A patent/CN100435758C/en not_active Expired - Fee Related
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| CN100435758C (en) | 2008-11-26 |
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Assignee: Liaoning Biomedical Materials R&D Center Co., Ltd. Assignor: Biomedicine Research Institute, Medical College of Dalian University|Dong Heyan Contract fulfillment period: 2008.12.1 to 2016.11.30 contract change Contract record no.: 2008210000085 Denomination of invention: Diameter-equivalent contractor of centering-symmetric conjugate cylindrical netted stand Granted publication date: 20081126 License type: Exclusive license Record date: 2008.12.9 |
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Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.12.1 TO 2016.11.30; CHANGE OF CONTRACT Name of requester: LIAONING BIOLOGY MEDICINE MATERIALS RESEARCH CENTE Effective date: 20081209 |
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Effective date of registration: 20140428 Address after: 116622, No. 10, Xuefu Avenue, Dalian economic and Technological Development Zone, Liaoning Patentee after: Dalian University Address before: 116622 bend Township, Dalian Development Zone, Dalian, Liaoning Patentee before: Biomedicine Research Institute, Medical College of Dalian University Patentee before: Dong Heyan |
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