CN100349559C - Flange plate type cylinder network holder isodiametric contractor - Google Patents
Flange plate type cylinder network holder isodiametric contractor Download PDFInfo
- Publication number
- CN100349559C CN100349559C CNB2004100875565A CN200410087556A CN100349559C CN 100349559 C CN100349559 C CN 100349559C CN B2004100875565 A CNB2004100875565 A CN B2004100875565A CN 200410087556 A CN200410087556 A CN 200410087556A CN 100349559 C CN100349559 C CN 100349559C
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- wing plate
- isodiametric
- contractor
- support frame
- cylindrical
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Abstract
The present invention relates to an isodiametric contractor for a wing plate type cylindrical reticular support frame. The isodiametric contractor comprises a body 1, a pin shaft 2 and a wing plate 3. The isodiametric contractor is characterized in that the body 1 is provided with a plurality of eccentric pin shafts 2; the wing plate 3 is arranged on the eccentric pin shafts 2; a shift bolt slot 4 is arranged in a center line position of the wing plate 3; a shift pin 6 which is arranged on an upper cover 5 is arranged in the shift bolt slot 4 which is arranged on the wing plate 3. According to a topology envelope principle, when the manufacture of the instruments satisfies design requirements, the cylindrical reticular support frame is always inscribed with a regular prism with n arris, and the regular n-prism is enveloped by the wing plate. The wing plate guarantees the isodiametric contraction of the cylindrical reticular support frame by force which is applied by the support frame and is perpendicular to the tangential surface. According to design requirements of biomedical engineering, the cylindrical reticular support frame is contracted to a conveying ball bag in an isodiametric way. In the contraction process, all radial stress of the support frame on the whole cylindrical surface is uniform, the isodiametric contractor has no torsional deformation, and the original design and the manufacture performance are kept. The isodiametric contractor has the advantages of practical application and obvious effect.
Description
Affiliated field
The present invention relates to the support constrictor, particularly the flange plate type iso-radius contractor for cylindrical reticular stent.
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 cylinder 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, important key technology is to be retracted on the sacculus induction system the cylinder network is isometrical, so that utilize the sacculus induction system that the cylinder 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.Technology is the simple hand instrument at present, causes non-isometrical contraction of cylinder network or torsional deformation easily.Can not satisfy the biomedical engineering designing requirement.
Summary of the invention
The present invention seeks at the prior art defective, a kind of key problem in technology that solves the isometrical contraction of cylinder network is provided, promptly tighten to carrying on the sacculus the cylinder network is isometrical by the biomedical engineering designing requirement, in process of packing, make support all radial forces on whole barrel surface even, the distortion that is not distorted keeps its original design and make performance.
The flange plate type iso-radius contractor for cylindrical reticular stent comprises body 1, bearing pin 2 and wing plate 3, it is characterized in that body 1 is provided with several bearing pins that departs from the wing plate centrage 2, and wing plate 3 devices are on bearing pin 2; Wing plate 3 position of center line are provided with finger groove 4; Be arranged on finger 6 on the loam cake 5 and place finger groove 4 on the wing plate 3.
The strictness of the netted support Design structure of cylinder is according to blood vessel kinetics, biomechanics, and the Elasticity calculating data, the appliance computer Aided Design forms.Its design guarantee network cylinder radial tension each to evenly, franchise is less than 0.1%.Global design and laser accurate processing technique have guaranteed that the cylinder network has propelling movement property in the good blood vessel, compliance that blood vessel passes through and bendability.
According to the netted supporting structure mechanics feature of cylinder, design is the n regular prism mechanism of its inscribed circle diameter of continuous transformation arbitrarily, and the stepless action of simulation multi-point radial power makes its isometrical contraction on the network barrel surface.The invention target: it is 80-116um that the cylinder 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.
As shown in Figure 6, according to mathematical principle,, connect Along ent and form a regular hexagon (or positive n limit shape) circumference 6 five equilibriums (or n five equilibrium, decide) according to instructions for use.Connect the Along ent and the center of circle, be divided into 6 (or n) equilateral triangle with one heart.With each triangle central angle bisector is centrage, sets the fulcrum that the partial center linear distance is S, and this fulcrum is the position of eccentric pin shaft 2:
S＝4×tg∏/n/(D+6)
In this formula, S: fulcrum eccentric throw;
∏: pi;
N: the regular polygon limit number of setting, this example is 6;
D: the external diameter that needs the cylinder network of isometrical contraction.
With this eccentric fulcrum is center of rotation, make each triangle rotation one angle synchronously, postrotational six trianglees heart position topology envelope therein go out a regular hexagon (or positive n limit shape), reduce each triangle anglec of rotation, these positive 6 limit shape continuous transformations, be that these positive 6 limit shape inscribed circle diameters reduce continuously, when each triangle anglec of rotation is reduced to zero, it is a point that the positive 6 limit shapes that this topological envelope goes out are shunk back; These six trianglees are reduced to a regular hexagon.
The flange plate type iso-radius contractor for cylindrical reticular stent, according to topological envelope principle, as long as this apparatus processing and manufacturing meet design requirement just can guarantee netted cylinder stent all the time with the regular N-prism inscribe of wing plate envelope, wing plate is demonstrate,proved the isometrical contraction of cylinder network to what support applied perpendicular to trying hard to keep of tangent plane.Practical application, effect is remarkable.
Description of drawings
The specific embodiment
I type flange plate type iso-radius contractor for cylindrical reticular stent, technical scheme and construction features are as follows: (with 6 wing plates is example, and the n sheet roughly the same)
Turn clockwise, the positive 6 prismatic continuous transformations that topological envelope goes out are rotated counterclockwise up to length of side maximum, this positive 6 prismatic continuous transformation, and shrinking back at last is a line (centrage that wing plate is assembled).Loam cake 5 is embedded in the upper slot of body 1, by spring collar 7 location.Body 1 and loam cake 5 are provided with control handle, are provided with compression spring 8 between two control handles.
Claims (3)
1, flange plate type iso-radius contractor for cylindrical reticular stent comprises body 1, bearing pin 2 and wing plate 3, it is characterized in that body 1 is provided with several bearing pins that departs from the wing plate centrage 2, and wing plate 3 devices are on bearing pin 2; Wing plate 3 position of center line are provided with finger groove 4; Be arranged on finger 6 on the loam cake 5 and place finger groove 4 on the wing plate 3.
2,, it is characterized in that loam cake 5 is embedded in the upper slot of body 1, by spring collar 7 location according to right 1 described flange plate type iso-radius contractor for cylindrical reticular stent.
3, according to right 1 described flange plate type iso-radius contractor for cylindrical reticular stent, it is characterized in that body 1 and loam cake 5 are provided with control handle, be provided with compression spring 8 between two control handles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100875565A CN100349559C (en) | 2004-11-17 | 2004-11-17 | Flange plate type cylinder network holder isodiametric contractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100875565A CN100349559C (en) | 2004-11-17 | 2004-11-17 | Flange plate type cylinder network holder isodiametric contractor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1631338A CN1631338A (en) | 2005-06-29 |
| CN100349559C true CN100349559C (en) | 2007-11-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100875565A Expired - Fee Related CN100349559C (en) | 2004-11-17 | 2004-11-17 | Flange plate type cylinder network holder isodiametric contractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100349559C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100435758C (en) * | 2006-04-13 | 2008-11-26 | 大连大学医学院生物医学研究所 | Centrosymmetric conjugation type equidistant constrictor for cylindrical net support |
| US9114036B2 (en) * | 2011-06-20 | 2015-08-25 | Machine Solutions, Inc. | Device for and method of loading stents into delivery tubes |
| US11259923B2 (en) | 2013-03-14 | 2022-03-01 | Jc Medical, Inc. | Methods and devices for delivery of a prosthetic valve |
| US11406497B2 (en) | 2013-03-14 | 2022-08-09 | Jc Medical, Inc. | Heart valve prosthesis |
| EP3331471B1 (en) * | 2015-08-07 | 2023-09-27 | JC Medical, Inc. | Crimper device |
| CN209864176U (en) | 2018-01-07 | 2019-12-31 | 苏州杰成医疗科技有限公司 | Prosthetic heart valve delivery system |
Citations (7)
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|---|---|---|---|---|
| US5700269A (en) * | 1995-06-06 | 1997-12-23 | Corvita Corporation | Endoluminal prosthesis deployment device for use with prostheses of variable length and having retraction ability |
| 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 |
| CN1253838A (en) * | 1998-11-11 | 2000-05-24 | 小川发条制作所股份公司 | Stante fixed mould, production method of said stante fixed mould and its retaining method |
| CN2493176Y (en) * | 2001-07-18 | 2002-05-29 | 张咏 | Ohm type vascular support |
| CN2502717Y (en) * | 2001-12-10 | 2002-07-31 | 董何彦 | Wave-shape coronary metal frame |
| US6468301B1 (en) * | 2000-03-27 | 2002-10-22 | Aga Medical Corporation | Repositionable and recapturable vascular stent/graft |
| CN2794468Y (en) * | 2004-11-17 | 2006-07-12 | 大连大学 | Constant diameter contractor of flange type round tube net shape support |
-
2004
- 2004-11-17 CN CNB2004100875565A patent/CN100349559C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5700269A (en) * | 1995-06-06 | 1997-12-23 | Corvita Corporation | Endoluminal prosthesis deployment device for use with prostheses of variable length and having retraction ability |
| 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 |
| CN1253838A (en) * | 1998-11-11 | 2000-05-24 | 小川发条制作所股份公司 | Stante fixed mould, production method of said stante fixed mould and its retaining method |
| US6468301B1 (en) * | 2000-03-27 | 2002-10-22 | Aga Medical Corporation | Repositionable and recapturable vascular stent/graft |
| CN2493176Y (en) * | 2001-07-18 | 2002-05-29 | 张咏 | Ohm type vascular support |
| CN2502717Y (en) * | 2001-12-10 | 2002-07-31 | 董何彦 | Wave-shape coronary metal frame |
| CN2794468Y (en) * | 2004-11-17 | 2006-07-12 | 大连大学 | Constant diameter contractor of flange type round tube net shape support |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1631338A (en) | 2005-06-29 |
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Granted publication date: 20071121 Termination date: 20161117 |