CN100425206C - Taper sleeve type iso-radius contractor for cylindrical reticular stent - Google Patents
Taper sleeve type iso-radius contractor for cylindrical reticular stent Download PDFInfo
- Publication number
- CN100425206C CN100425206C CNB2005100456195A CN200510045619A CN100425206C CN 100425206 C CN100425206 C CN 100425206C CN B2005100456195 A CNB2005100456195 A CN B2005100456195A CN 200510045619 A CN200510045619 A CN 200510045619A CN 100425206 C CN100425206 C CN 100425206C
- Authority
- CN
- China
- Prior art keywords
- contractor
- tapered sleeve
- conical surface
- taper sleeve
- radius
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The present invention relates to a contractor of a support frame, particularly to a taper sleeve type isodiametric contractor for a cylindrical reticular support frame. The present invention comprises a taper sleeve and a drive device, wherein the interior of the taper sleeve is provided with N equant guiding conical surface tracks. A fan-shaped block is arranged in each guiding conical surface track. N guide conical surface tracks form a frustum shape. One end of the frustum is in a shape of the big end of the taper sleeve, and the other end is in the shape of the small end of the taper sleeve. The drive device is connected with the taper sleeve. According to the characteristics of the structural mechanics of the cylindrical reticular support frame, the diameters can be optionally and continuously changed. Simultaneously, the contracted support frame is only provided with a conical fan-shaped mechanism with radial acting force, the uniformly distributed radial force is generated to act on the outer cylindrical surface of the cylindrical reticular support frame, and thus, the outer cylindrical surface is shrunk in an isodiametric way.
Description
Technical field
The present invention relates to support constrictor, particularly taper sleeve 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, provide a kind of solution taper sleeve type cylinder network isometrical contraction technology key, 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.
Taper sleeve type iso-radius contractor for cylindrical reticular stent comprises tapered sleeve, is provided with the guiding conical surface track of N five equilibrium in tapered sleeve, in each guiding conical surface track, be provided with a secter pat, N guiding conical surface track constitutes the frustum shape, and an end is the big end of tapered sleeve, and the other end is the tapered sleeve small end; The driving device that is connected with tapered sleeve;
Described driving device is by cylinder block, and with the promotion piston that the big end of tapered sleeve is connected, the push rod that makes secter pat reset and be connected with the tapered sleeve small end, cylinder head, air inlet, air vent constitutes;
Described push rod is connected with the compression spring;
Respectively be provided with clamper on described push rod and the promotion piston;
Described clamper is to be made of two taper fixture blocks and spiral cover;
The both sides of described secter pat are provided with dish spring groove, are provided with the dish spring in dish spring groove;
Described guiding conical surface track is 8.
The manufacture method of taper sleeve type iso-radius contractor for cylindrical reticular stent, in tapered sleeve, be provided with the guiding conical surface track of N five equilibrium, in each guiding conical surface track, be provided with a secter pat, N guiding conical surface track constitutes the frustum shape, one end is the big end of tapered sleeve, the other end is the tapered sleeve small end, being positioned at the big end of tapered sleeve at secter pat becomes under the closed form, process a hole at the center, aperture D=d+s (d=cylinder network tightens the diameter that the back requires), and secter pat both sides equalization reduced s/2, make to keep impartial gap s=(D-d) π/8 between each secter pat;
Described N is 8.
Advantageous effect of the present invention: taper sleeve type iso-radius contractor for cylindrical reticular stent has the advantage of following uniqueness:
1. meet design requirement as long as make, this inventive principle makes cylinder network and system thereof not be subjected to any additional force in isometrical process of packing, guarantee that the cylinder network only is subjected to the radial force of cylindrical radial face in the secter pat, guarantee that the isometrical contraction of cylinder network 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 cylinder network outside 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 0.02mm in the secter pat, is decremented to 20 ° of angle positions of cylindrical radial face, only is 0.004mm.Consider the strain of cylinder network in process of packing, can think this invention technology of using, can make coghill net shape support 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 the isometrical contraction technology of present known cylinder network, still there is not this level that reaches.
3. because signal of telecommunication control technology is adopted in this invention, therefore good interface capability is arranged with Numeric Control Technology.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.
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 cylinder network 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.The purpose of this invention is to research and solve the key problem in technology of the isometrical contraction of cylinder network, 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.
According to the netted supporting structure mechanics feature of cylinder, design is the continuous transformation diameter arbitrarily, simultaneously the support that is tightened is only had the fan-shaped mechanism of awl of radial effect power, produces uniform radial force and acts on the cylinder network external cylindrical surface, makes its isometrical contraction.
As shown in the figure, according to mathematical principle,, become 8 secter pats with frustum 8 equal portions.Be positioned at the big end of tapered sleeve at secter pat and become under the closed form, process a hole at the center, aperture D=d+s (d=cylinder network tightens the diameter that the back requires).And secter pat both sides equalization reduced s/2, make to keep impartial gap s=(D-d) π/8 (as Fig. 2) between each secter pat.When 8 secter pats move to the tapered sleeve small end along the track conical surface synchronously, the secter pat gap-closing makes center-hole diameter be reduced to d=D-s (as Fig. 3).
Description of drawings
Fig. 1 is a structural representation of the present invention; Fig. 2 is that C-C of the present invention is to the big end cut-away view of frustum.Fig. 3 is that B-B of the present invention is to frustum small end cut-away view; Fig. 4 a is a secter pat enlarged drawing of the present invention; Fig. 4 b is that secter pat A-A of the present invention is to cut-away view; Fig. 5 is the structural representation of taper fixture block of the present invention; Fig. 6 is a promotion piston sketch map of the present invention; Fig. 7 is a pusher structure sketch map of the present invention; Fig. 8 is the network structural representation; Fig. 9 is a network user mode sketch map.
Tapered sleeve 1 among the figure; Cylinder block 2; Secter pat 3; Push rod 4; Promote piston 5; Cylinder head 6; Compression spring 7; Clamper 8; Taper fixture block 9; Spiral cover 10; Dish spring 11; Dish spring groove 12; Air inlet 13; Air vent 14; Sacculus 15; Support 16.
The specific embodiment
Present embodiment is an example with the guiding conical surface track of 8 five equilibriums.Taper sleeve type iso-radius contractor for cylindrical reticular stent technical scheme and construction features are as follows: be provided with 8 guiding conical surface tracks in the tapered sleeve 1, be provided with 8 secter pats 3 in the conical surface track, conical surface track, secter pat etc. all Precision Machining form, its overall dimensions, central hole size all are set in the atomic little tolerance.Secter pat 3 both sides are provided with dish spring groove 12, are provided with 11,8 secter pats 3 of dish spring in dish spring groove 12 under the effect of dish spring 11 power, are fitted in all the time on the tapered sleeve guide rail and slide.Be respectively equipped with push rod 4 at its two ends, promote piston 5.In order to guarantee that the cylinder network is in the cylindrical center position that 8 secter pat envelopes become all the time in deflation, on push rod 4 and promotion piston 5, respectively be provided with clamper 8 in the automatic school, this clamper 8 is made of two halves taper fixture block 9 and spiral cover 10.This project organization guarantees that clamper 8, push rod 4, promotion piston 5, secter pat 3 can carry out moving of horizontal direction synchronously.Also just guaranteed in the netted mounting system of the cylinder on the clamper 8 and tightened between the device any relatively moving do not taken place.
Promoting piston 5 is promoted by the cylinder compressed air that cylinder block 2 and cylinder head 6 form.Push rod 4 is promoted by compression spring 7.The conducting under the incoming telephone signal effect of control electromagnetic valve, compressed air enters cylinder from air inlet 13, promotes piston 5, secter pat 3 and push rod 4 and moves to the tapered sleeve small end together, and compress spring 7 and be compressed this moment.8 secter pats 3 are subjected to the radial component of tapered sleeve plurality of ramps when moving horizontally, radially move, and its inboard face of cylinder arc applies radial effect power to support simultaneously.The face of cylinder diameter of its center institute envelope diminishes continuously, reaches the cylinder network at last and tightens the diameter d that requires.
When tightening, finishes on support, the cancellation of control electromagnetic valve incoming telephone signal, inner pressure of air cylinder is drained by air vent 14, and push rod 4 promotes secter pat 3 and promote piston 4 to be returned to the big end of tapered sleeve together under the pressure of compression spring 7, and the center-hole diameter of secter pat envelope increases to d+s.
Claims (7)
1, taper sleeve type iso-radius contractor for cylindrical reticular stent, comprise tapered sleeve (1), it is characterized in that in tapered sleeve (1), being provided with the guiding conical surface track of N five equilibrium, in each guiding conical surface track, be provided with a secter pat (3), N guiding conical surface track constitutes the frustum shape, one end is the big end of tapered sleeve (1), and the other end is tapered sleeve (a 1) small end; The driving device that is connected with tapered sleeve (1) is by cylinder block (2), the promotion piston (5) that is connected with the big end of tapered sleeve, and the push rod (4) that secter pat (3) is resetted be connected with the tapered sleeve small end, cylinder head (6), air inlet (13), air vent (14) constitutes.
2, taper sleeve type iso-radius contractor for cylindrical reticular stent according to claim 1 is characterized in that described push rod (4) is connected with compression spring (7).
3, taper sleeve type iso-radius contractor for cylindrical reticular stent according to claim 1 and 2 is characterized in that described push rod (4) and promotes respectively being provided with clamper (8) on the piston (5).
4, taper sleeve type iso-radius contractor for cylindrical reticular stent according to claim 3 is characterized in that described clamper (8) is to be made of two taper fixture blocks (9) and spiral cover (10).
5, taper sleeve type iso-radius contractor for cylindrical reticular stent according to claim 1 is characterized in that the both sides of described secter pat (3) are provided with dish spring groove (12), is provided with dish spring (11) in dish spring groove (12).
6, taper sleeve type iso-radius contractor for cylindrical reticular stent according to claim 1 is characterized in that described guiding conical surface track is 8.
7, the manufacture method of taper sleeve type iso-radius contractor for cylindrical reticular stent, it is characterized in that in tapered sleeve (1), being provided with the guiding conical surface track of 8 five equilibriums, in each guiding conical surface track, be provided with a secter pat (3), 8 guiding conical surface tracks constitute the frustum shape, one end is the big end of tapered sleeve (1), the other end is tapered sleeve (a 1) small end, being positioned at the big end of tapered sleeve at secter pat (3) becomes under the closed form, process a hole at the center, aperture D=d+s, d=cylinder network tightens the diameter that the back requires, and secter pat both sides equalization is reduced s/2, makes to keep impartial gap s=(D-d) π/8 between each secter pat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100456195A CN100425206C (en) | 2005-01-06 | 2005-01-06 | Taper sleeve type iso-radius contractor for cylindrical reticular stent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100456195A CN100425206C (en) | 2005-01-06 | 2005-01-06 | Taper sleeve type iso-radius contractor for cylindrical reticular stent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1654017A CN1654017A (en) | 2005-08-17 |
| CN100425206C true CN100425206C (en) | 2008-10-15 |
Family
ID=34894475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100456195A Expired - Fee Related CN100425206C (en) | 2005-01-06 | 2005-01-06 | Taper sleeve type iso-radius contractor for cylindrical reticular stent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100425206C (en) |
Families Citing this family (3)
| 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 |
| CN106361467B (en) * | 2015-07-24 | 2019-05-31 | 上海微创心通医疗科技有限公司 | The loading attachment of implant |
| CN106510430A (en) * | 2016-11-23 | 2017-03-22 | 廖华 | Cylindrical vegetable peeling cutter |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2242105Y (en) * | 1995-12-29 | 1996-12-11 | 吴雄 | Advancing means for gullet supporting |
| WO2000045738A1 (en) * | 1999-02-05 | 2000-08-10 | Atropos Limited | Removable stent |
| WO2000062711A1 (en) * | 1999-04-15 | 2000-10-26 | Smart Therapeutics, Inc. | Intravascular stent and method of treating neurovascualr vessel lesion |
| WO2001043662A1 (en) * | 1999-12-17 | 2001-06-21 | Advanced Cardiovascular Systems, Inc. | System for blocking the passage of emboli through a body vessel and method of use |
| CN2462956Y (en) * | 2000-04-25 | 2001-12-05 | 杜永安 | Support type artifical vascular conveyer |
| WO2003063729A2 (en) * | 2002-01-28 | 2003-08-07 | Orbus Medical Technologies Inc. | Flared ostial endoprosthesis and delivery system |
| CN2798852Y (en) * | 2005-01-06 | 2006-07-26 | 大连大学 | Taper sleeve type equal-diameter contractor for cylindraceous network holder |
-
2005
- 2005-01-06 CN CNB2005100456195A patent/CN100425206C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2242105Y (en) * | 1995-12-29 | 1996-12-11 | 吴雄 | Advancing means for gullet supporting |
| WO2000045738A1 (en) * | 1999-02-05 | 2000-08-10 | Atropos Limited | Removable stent |
| WO2000062711A1 (en) * | 1999-04-15 | 2000-10-26 | Smart Therapeutics, Inc. | Intravascular stent and method of treating neurovascualr vessel lesion |
| WO2001043662A1 (en) * | 1999-12-17 | 2001-06-21 | Advanced Cardiovascular Systems, Inc. | System for blocking the passage of emboli through a body vessel and method of use |
| CN2462956Y (en) * | 2000-04-25 | 2001-12-05 | 杜永安 | Support type artifical vascular conveyer |
| WO2003063729A2 (en) * | 2002-01-28 | 2003-08-07 | Orbus Medical Technologies Inc. | Flared ostial endoprosthesis and delivery system |
| CN2798852Y (en) * | 2005-01-06 | 2006-07-26 | 大连大学 | Taper sleeve type equal-diameter contractor for cylindraceous network holder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1654017A (en) | 2005-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100425206C (en) | Taper sleeve type iso-radius contractor for cylindrical reticular stent | |
| CN2798852Y (en) | Taper sleeve type equal-diameter contractor for cylindraceous network holder | |
| ATE362354T1 (en) | DISC PROSTHESIS OR NUCLEUS REPLACEMENT PROSTHESIS | |
| CN107620747A (en) | Actuator body, actuator driving method and used their holding hand | |
| EP1681189A3 (en) | Spring support with adjustable spring plate | |
| DE50106336D1 (en) | PROSTHETIC MITRAL HEARTLAP | |
| WO2006062824A3 (en) | Instrument guiding stage apparatus and method for using same | |
| CN1838927A (en) | Stent | |
| EP1239457A3 (en) | Voice synthesizing apparatus | |
| TW200643502A (en) | Housing tube device and imaging device | |
| CN207480149U (en) | A kind of distortion-free pneumatic auxiliary supporting device | |
| CN207102668U (en) | A kind of clinical laboratory's rack for test tube | |
| CN107984334A (en) | A kind of positioning fixture being used for artificial tooth positioning | |
| PL1553309T3 (en) | Device for fixing a component on jacket tubes with different diameters | |
| TWI363201B (en) | Assembling lens jig, assembling system having same and assembling method | |
| CN108274268A (en) | Adjustable type drill positioning device in cylindrical workpiece | |
| CN208901995U (en) | A kind of spinal operation pitman length-measuring appliance | |
| CN100435758C (en) | Centrosymmetric conjugation type equidistant constrictor for cylindrical net support | |
| US20210015610A1 (en) | Implant loading apparatus | |
| CN210443251U (en) | Small size with double-beam strut | |
| CN209477748U (en) | A kind of interior tensioning clamper | |
| CN115220174B (en) | Integrated opening flexible supporting structure for supporting reflector | |
| US10473144B2 (en) | Bent tubular shaft and method for producing the same | |
| Georgakaki | Euripides’ Medea on stage, Smyrna 1898 | |
| Wang | The HKU-USTC Speech Corpus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081015 Termination date: 20150106 |
|
| EXPY | Termination of patent right or utility model |