CN106308867A - Closure device manufacturing method and closure device manufacturing mold - Google Patents
Closure device manufacturing method and closure device manufacturing mold Download PDFInfo
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- CN106308867A CN106308867A CN201510377505.4A CN201510377505A CN106308867A CN 106308867 A CN106308867 A CN 106308867A CN 201510377505 A CN201510377505 A CN 201510377505A CN 106308867 A CN106308867 A CN 106308867A
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- Prior art keywords
- height
- stopper
- cavity
- mould
- bodies
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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
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12027—Type of occlusion
- A61B17/12031—Type of occlusion complete occlusion
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12099—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder
- A61B17/12109—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12099—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder
- A61B17/12122—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder within the heart
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12131—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device
- A61B17/1214—Coils or wires
- A61B17/12145—Coils or wires having a pre-set deployed three-dimensional shape
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
- A61B2017/00238—Type of minimally invasive operation
- A61B2017/00243—Type of minimally invasive operation cardiac
-
- 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
- A61B2017/00743—Type of operation; Specification of treatment sites
- A61B2017/00778—Operations on blood vessels
Abstract
The invention relates to a closure device manufacturing method and a closure device manufacturing mold. The closure device manufacturing method comprises the following steps: making a meshed-pipe shaped woven body into a first shape body which comprises a first disc-shaped structure and a kidney-shaped structure, and forming a wrinkled area, which has a first height, in the periphery of the kidney-shaped structure; and shaping the wrinkled area to a second height which is greater than the first height, so that a second shape body is formed. A closure device, which is formed by virtue of the closure device manufacturing method and the closure device manufacturing mold provided by the invention, is prevented from getting twisted in a waist part, and the closure device is high in pass percent.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments manufacture method and medical apparatus and instruments makes mould, more specifically to a kind of stopper
Manufacture method and stopper make mould.
Background technology
Along with intervention material apparatus and the development of Interventional cardiology, transcatheter occlusion device minimally-invasive treatment interatrial septum lacks
The congenital heart diseases such as damage, ventricular septal defect, patent ductus arteriosus and patent foramen ovale become important method.Same intervention
Mode carries out Endovascular closure, is also well accepted treatment means.
Waist has the stopper of ripple or zigzag fold, compares the stopper with identical waist length in its natural state, tool
Length after the waist having fold elongates is longer, and flexible angle is bigger, can block and have difformity and different waist
Long defect, subject range is wider.This stopper waist in its preparation process easily distorts, and yield is relatively low.
Summary of the invention
The present invention provides a kind of stopper manufacture method and makes mould, multiple to solve the making stopper operation of prior art
Miscellaneous, that the waist of formation easily distorts defect.
The present invention provides a kind of stopper manufacture method, including: webmaster shape knitted body is made include the first disk-like structure and
First bodies of kidney-shaped structure, and form, the circumferential of described kidney-shaped structure, the plication region having first highly；By described
Plication region sizing, to the second height more than described first height, forms the second bodies.
In one embodiment, described stopper manufacture method is additionally included on described knitted body makes the second disk-like structure, institute
State the second disk-like structure and described first disk-like structure lays respectively at the two ends of described kidney-shaped structure.
In one embodiment, described stopper manufacture method also includes closing both ends open and mid portion diameter less than two ends
The webmaster of diameter makes the described knitted body of webmaster shape.
In one embodiment, the making of described first bodies includes: described knitted body is inserted the first chamber of the first mould
In body；Described first mould is utilized to be compressed axially described knitted body to forming described first disk-like structure and described second plate-like knot
Structure, and on described waist, form described plication region；Plication region described in thermal finalization is to described first height, and heat is fixed respectively
First disk-like structure described in type and described second disk-like structure.
In one embodiment, the making of described second bodies includes: provide second mould with the second cavity, described
Second mould includes the core that can remove from described second cavity；Described core is placed in described first bodies, uses
The plication region with the first height is axially strutted to the second height by described core, and by described core together with described first shape
Shape body inserts also thermal finalization in described second cavity, obtains described second bodies.
In one embodiment, the manufacture method of described first bodies and the second bodies includes: provides and has height adjustable
The 3rd mould of the 3rd cavity；Described knitted body is inserted in described 3rd cavity, and regulates the height of described 3rd cavity
Described knitted body is compressed axially until described knitted body mid portion formed have described first height plication region,
Two end portions at described knitted body forms described first disk-like structure and described second disk-like structure respectively；Regulate described
The height of three cavitys makes described plication region axially recoil to described second height thermal finalization.
In one embodiment, described heat setting temperature scope is 400 DEG C～550 DEG C, and heat-setting time scope is 1～10 point
Clock.
Originally returning a kind of mould for making stopper of offer, described stopper has a waist, and described mould includes the
One mould and the second mould, described first mould has the first cavity, and described second mould has the second cavity and can be from
The core removed in described second cavity, the height of described second cavity is more than the height of described first cavity；Described first chamber
Height is less than the axial height under described stopper naturalness, and the height of described second cavity is substantially equal to described stopper
Axial height under naturalness.
In one embodiment, described core includes a stylolitic part, and described stylolitic part can be placed in described stopper
In waist, and the height of described stylolitic part is substantially equal to the height of waist under described stopper naturalness.
The present invention also provides for a kind of mould for making stopper, and described stopper has a waist, and described mould is tool
Having the mould of cavity, the height adjustable of described cavity, the minimum constructive height of described cavity is substantially equal or smaller than described stopper axle
Minimum constructive height after compression, the maximum height of described cavity is substantially equal or larger than under described stopper waist nature state
Axial height.
In one embodiment, described mould includes that upper mold and lower mold, described upper mold and lower mold enclose that to set formation described jointly
Cavity；Described upper mold is provided with at least one upper limb, and described lower mold is provided with at least one lower edge, at least one upper limb described and
At least one lower edge described is all arranged around described cavity, and described upper limb and described lower edge are correspondingly arranged and by least one
Connector mutually can be connected closer or far from ground.
In one embodiment, described lower edge is provided with at least one screwed hole, and described upper limb is provided with at least one through hole, each
Described connector all includes that a bolt and two nuts, each described bolt free end all sequentially pass through the lower edge being correspondingly arranged
Screwed hole and the through hole of upper limb, described bolt is connected with the screw thread of described lower edge；Two described nuts are all combined on described
On bolt, and described upper limb is located between two described nuts.
During the stopper manufacture method of the present invention, tied by the kidney-shaped being initially formed the plication region with the first height
Structure, will have the plication region sizing of the first height in the second height, wherein first height the most further in kidney-shaped structure
Less than the second height, then it is by stretching kidney-shaped structure or kidney-shaped structure self when plication region being shaped in the second height
Elastic deformation is formed, and the phenomenon of kidney-shaped structural distortion therefore can't occurs；Additionally the present invention has the first height in formation
During the kidney-shaped structure of plication region, concurrently form the first disk-like structure and the second disk-like structure, then high owing to will have first
When the plication region sizing of degree is in the second height, it is not necessary to molding forms the first disk-like structure and the second disk-like structure further,
Then further avoid the phenomenon of kidney-shaped structural distortion.Owing to kidney-shaped structure ultimately forms the waist of stopper, therefore obtain
Stopper qualification rate is high.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 be the present invention for forming the structural representation of the knitted body of stopper, this knitted body includes a webmaster；
Fig. 2 is the structural representation for forming the mould of webmaster rod；
Fig. 3 is the structural representation of webmaster；
Fig. 4 is the structural representation of first mould that knitted body is shaped to the first bodies of first embodiment in the present invention；
Fig. 5 is that knitted body is placed in the structural representation in the first mould；
Fig. 6 is the structural representation of the first bodies；
Fig. 7 is A portion enlarged drawing in Fig. 6；
Fig. 8 is the structural representation of the second mould for the first bodies is shaped to the second bodies；
Fig. 9 is that the first bodies is placed in the structural representation in the second mould；
Figure 10 is the structural representation of the second bodies；
Figure 11 is the structural representation after the second bodies end arranges connector；
Figure 12 is the structural representation of the 3rd mould for knitted body is shaped to the second bodies of second embodiment of the invention
Figure；
Figure 13 is the structural representation utilizing the 3rd mould that knitted body is shaped to the first bodies；
Figure 14 is the structural representation utilizing the 3rd mould that knitted body is shaped to the second bodies.
Detailed description of the invention
In order to be more clearly understood from the technical characteristic of the present invention, purpose and effect, now comparison accompanying drawing describes this in detail
Bright detailed description of the invention.
At congenital cardiac intervention medical field, definition is near-end away from the relative proximity of one end of operator, the most remote away from operator
One end be far-end.
Dividing by shape, stopper generally includes approximation " work " font and approximation two kinds of structures of " T " font.Described " work "
Font can be understood as including double plate and a waist and the structure big in waist shallow bid.By the heart defect position classification being suitable for, envelope
Stifled device mainly includes ventricular septal defect (VSD) stopper, atrial septal defect (ASD) stopper, patent ductus arteriosus (PDA)
Stopper, and patent foramen ovale (PFO) stopper.Wherein, VSD stopper, ASD stopper and PFO stopper have
The approximation dies of double plate and a waist, PDA stopper has approximation " T " font structure of single-deck and a waist.
Hereinafter, as a example by just there is the stopper of double plate and a waist, stopper manufacture method and stopper that the present invention provides are described
Make mould.
Embodiment one:
Referring to shown in Fig. 1, Fig. 6, Figure 10 and Figure 11, the stopper manufacture method in the present embodiment, including being formed
The webmaster shape knitted body 100 (seeing Fig. 1) of closed at both ends；Described knitted body 100 is formed the first bodies 200, first
Bodies 200 includes first disk-like structure 210, second disk-like structure 220, and is connected to the first disk-like structure
210 and second kidney-shaped structures 230 between disk-like structure 220, this kidney-shaped structure 230 circumference is provided with plication region
231, and this plication region 231 have first height (seeing Fig. 6)；Plication region 231 is shaped to more than described first
Second height of height, to form the second bodies 300 (seeing Figure 10) by the first bodies 200；By the second bodies
One end of 300 arranges connector 140, for being connected with each other (seeing Figure 11) with carrier.
Wherein first disk-like structure the 210, second disk-like structure 220 is the double plate of final finished stopper, kidney-shaped structure 230
For the waist of final finished stopper, but the waist that waist height is different from final finished is high.
Wherein, the manufacture method of knitted body 100 includes following several step:
As shown in Figure 1, Figure 2, Figure 3 shows, first the mould rod 130 that big centre, a two is little is provided, mould rod 130 uses
The mode of grid lines interlacing is formed webmaster 110 heat-shaping.Formed webmaster 110 include mid portion 112 with
And two end portions 111, the diameter of two end portions 111 is more than the diameter of mid portion 112.
Wherein, grid lines has shape memory function and can be heated to form reservation shape, such as, Nitinol etc..Thermal finalization
Temperature is 400 DEG C～550 DEG C, and heat-setting time is 1～10 minute.It is understood that heat-setting time can also basis
The thickness of grid lines is adjusted, i.e. the thicker heat-setting time of grid lines is long, and the thinner heat-setting time of grid lines is short.
Referring again to Fig. 1, after forming webmaster 110, by retainer ring 120, the grid lines at webmaster 110 two ends 111 is solid
Fixed, to form the knitted body 100 of closed at both ends.It is understood that for the retainer ring 120 fettering webmaster 110 near-end
For ring bodies, preferably steel screw bushing.It is understood that retainer ring 120 can also be other components, the most not
It is specifically limited.
The method that knitted body 100 is made the first bodies 200 comprises the following steps:
Shown in Figure 4, first, it is provided that first mould 400, this first mould 400 includes the first upper mold 420
And first lower mold 430, described first upper mold 420 and described first lower mold 430 are enclosed and are set one the first cavity 410 of formation.
First cavity 410 is in the form of annular discs, and the height of discoid first cavity 410 is less than the axial height under stopper naturalness.
Preferably, the height of the first cavity 410 is substantially equal to after knitted body 100 (or stopper of required preparation) is compressed axially
Low height, the diameter of the first cavity 410 is substantially equal to maximum compression diameter (knitted body 100 two ends at knitted body 100 two ends
Maximum compression diameter refer to when knitted body 100 is compressed axially extreme position, knitted body 100 two ends are presented
Maximum gauge).First locating slot or hole 411, location it is respectively equipped with on two opposing end surfaces of the first cavity 410, it is preferable that
First locating slot or hole 411, location are respectively placed in the center of two opposing end surfaces of the first cavity 410.
Wherein, the diameter of the first cavity 410 is substantially equal to the maximum compression diameter at knitted body 100 two ends, the first cavity 410
Height minimum constructive height after substantially equal to knitted body 100 is compressed axially in " substantially " refer to: the first cavity 410 straight
Footpath is essentially equal to the maximum compression diameter at knitted body 100 both ends, and the height of the first cavity 410 is essentially equal to knitted body
100 be compressed axially after minimum constructive height, it is allowed to there is slight deviations.
First upper mold 420 and the first lower mold 430 are connected with each other by the first connector 440.Concrete, the first upper mold 420
Being provided with two the first upper limbs 421, the first lower mold 430 is provided with two the first lower edges 431, the first upper limb 421 and the first lower edge
431 are correspondingly arranged, and the first upper limb 421 and the first lower edge 431 are all located at the first cavity 410 circumference.First connector
The quantity of 440 is identical with the quantity of the first upper limb 421 and be two.It is understood that the first upper limb 421 and first
There is no particular limitation for the quantity of lower edge 431, when the quantity of the first upper limb 421 or the first lower edge 431 is one, and should
First upper limb 421 or the first lower edge 431 are substantially around the loop configuration of the first cavity 410, now, and the first connector 4
Number can be one, two or more, can be as desired to set；When the first upper limb 421 or the first lower edge
When the number of 431 is three or more, the plurality of first upper limb 421 or multiple first lower edge 431 interval are arranged,
And arrange around this first cavity 410, now, there is no particular limitation for the number of the first connector 440, to be capable of
Firm between first upper mold 420 and the first lower mold 430 connects.
Each first upper limb 421 is provided with first through hole 422, and each first lower edge 431 is correspondingly provided with one first
Screwed hole 432.Each first connector 440 includes that first bolt 441 and one are for revolving with the first bolt 441
The first nut 442 closed.The external screw thread of the first bolt 441 and the female thread of the first screwed hole 432 match.First bolt
441 can sequentially pass through the first screwed hole 432 and the first through hole 422, and are spirally connected with the first bolt 441, thus by the first upper mold
420 and first lower mold 430 link together.
Further, shown in Fig. 5, the knitted body 100 of closed at both ends is placed in the first cavity 410, and makes knitted body
Each end accommodation with retainer ring 120 of 100 positions in hole 411 in the first locating slot or first.Afterwards by first
Bolt 441 free end sequentially passes through first screwed hole the 432, first through hole 422, and axially makes along the first bolt 441
One upper mold 420 and the first lower mold 430 are close to each other until being compressed axially knitted body 100 to its minimum constructive height, further,
By the first nut 442 is combined on the free end of the first bolt 441 realize the first upper mold 420 and the first lower mold 430 it
Between position fix.
It should be noted that by during close to each other to the first upper mold 420 and the first lower mold 430, be located in the first chamber
Knitted body 100 in body 410 is compressed in the axial direction, when knitted body 100 is compressed into minimum constructive height, and knitted body 100
Two ends form the first disk-like structure 210 and the second disk-like structure 220 respectively, the mid portion of knitted body 100 forms edge
Some folds 232 of axially arrangement, these some folds 232 i.e. form plication region 231, now, this plication region 231
Having the first height, the two sides of each fold 232 are superimposed with each other and make fold 232 (refer to Fig. 6, Fig. 7) in flat form.
Also, it should be noted preferably, the diameter of the first through hole 422, slightly larger than the external diameter of the first bolt 441, is first
The relative motion of relative first lower mold 430 of upper mold 420 provides guide effect.
It follows that by the first mould 400 together with knitted body 100 thermal finalization after deformation, and by the knitted body 100 after thermal finalization
Take out from the first mould 400 and i.e. can get the first bodies 200.Wherein heat setting temperature is 400 DEG C～550 DEG C, thermal finalization
Time is 1～10 minute.It can also be appreciated that heat-setting time can be adjusted according to the thickness of grid lines, i.e.
Thicker grid lines heat-setting time is long, and thinner grid lines heat-setting time is short.
The manufacture method of the second bodies 300 includes following several step:
Refer to shown in Fig. 8, first provide second mould 500, this second mould 500 include the second upper mold 520,
Second middle mold 530 and the second lower mold 540.Second upper mold the 520, second middle mold 530 and the second lower mold 540 are enclosed and are set formation
Second cavity 510.Concrete, the second middle mold 530 and the second upper mold 520 are enclosed and are set formation the second epicoele 511, the second epicoele
The shape of 511 adapts with the shape of the first disk-like structure 210；Second middle mold 530 and the second lower mold 540 are enclosed and are set formation
Two cavity of resorptions 512, the shape of the second cavity of resorption 512 adapts with the shape of the second disk-like structure 220.In the middle part of second middle mold 530
Break-through forms the second lumen 513.Second epicoele 511 and the second epicoele 511 are away from difference on the inner surface of the second middle mold 530
It is provided with second locating slot or hole 514, location.
Be provided with removable core 550 in second cavity 510, core 550 include a stylolitic part 551 and with this post
The disk portions 552 that shape part 551 is connected, i.e. core 550 longitudinal section is " T " shape.The stylolitic part of core 550
The stopper that the height of 551 obtains needed for being substantially equal to descends the height of waist, the diameter of stylolitic part 551 in the raw
It is slightly less than stopper and descends the internal diameter of waist in the raw, the disk portions 552 of core 550 and the second disk-like structure 220
Shape adapt, and the inner side of the second disk-like structure 220 can be placed in.Preferably, the height of the stylolitic part of core 550
Degree is 2-3mm.It is understood that core 550 can also be on the whole in column, the core 550 of column is the most basic etc.
Descend the height of waist in the raw in the required stopper obtained, diameter is slightly less than stopper and descends waist in the raw
Internal diameter.
Second mould 500 includes that at least one second connector 560, each second connector 560 include second bolt
561 and second nut 562.Each second upper mold the 520, second middle mold the 530, second lower mold 540 is equipped with position
Corresponding marginal area, each marginal area is all located on the circumference of the second cavity 510, can be by being worn by the second bolt 561
Screw the second nut 562 after crossing the marginal area of this three and realize second upper mold the 520, second middle mold the 530, second lower mold
Being connected with each other between 540.
Afterwards, as it is shown in figure 9, it is internal that core 550 is placed in from the first mould 400 the first bodies 200 taken out,
The stylolitic part 551 of its core mould 550 is placed in the kidney-shaped structure 230 of the first bodies 200, the disc portion of core 550
552 are divided to be placed in the second disk-like structure 220；And core 550 is inserted in the second cavity 510 together with the first bodies 200,
Now the stylolitic part 551 of core 550 is arranged at the inner side of the first bodies 200 kidney-shaped structure 230, the dish of core 550
Shape part 552 is placed in the inside of the second disk-like structure 220.Concrete, the first bodies 200 is placed in the second cavity 510
Time, the first disk-like structure 210 is placed in the second epicoele 511, and the second disk-like structure 220 is together with the disk portions of core 550
552 are placed in the second cavity of resorption 512, and kidney-shaped structure 230 is arranged at the second lumen 513 together with the stylolitic part 551 of core 500
In.The height of waist is descended in the raw owing to the height of core 550 stylolitic part 551 is substantially equal to stopper, therefore will
Core 550 is positioned over rear flank in the first bodies 200, and plication region 231 is softened, each fold of plication region 231
It is at an angle that shape is launched in the two sides of 232, thus forms wavy or zigzag fold, the now height of plication region 231
Increase to the second height.
It follows that as it is shown in figure 9, the second mould 500 is processed together with the first bodies 200 thermal finalization after deformation, and
First bodies 200 of the deformation after thermal finalization is taken out from the second mould and can obtain the second bodies 300.Wherein heat is fixed
Type temperature is 400 DEG C～550 DEG C, and heat-setting time is 1～10 minute.It can also be appreciated that heat-setting time is permissible
Thickness according to grid lines is adjusted, i.e. crin heat-setting time is long, and filament heat-setting time is short.
Further, as shown in figure 11, taking-up is provided with spiral shell in one of them retainer ring 120 of the second bodies 300
The connector 140 of stricture of vagina, to be connected with carrier by connector 140.Concrete, the screw thread of connector 140 is female thread,
Connector 140 is connected with retainer ring 120 by the way of welding.
Optionally, the step of formation stopper is additionally included in the inside of the second bodies 300 and arranges choked flow film, or second
The surface of bodies 300 wears litzendraht wire, arranges overlay film etc., does not specifically describes.
It should be noted that in the present embodiment, be initially formed first disk-like structure the 210, second disk-like structure 220, and tool
There is the kidney-shaped structure 230 of the plication region 231 of the first height, the most further will there is the plication region 231 of the first height
Shaping to the second height, such production method makes when being molded into kidney-shaped structure 230 for the first time by the first plate-like knot
Structure 210 and the second disk-like structure 220 molding, thus second time molding during need not to the first disk-like structure 210 with
And second disk-like structure 220 process, thus avoid the first disk-like structure 210 and the second disk-like structure 220 is relative
Kidney-shaped structure 230 offsets, or makes the situation that kidney-shaped structure 230 is distorted.Further, since kidney-shaped structure 230
Ultimately form stopper waist, then avoid the situation of the waist distortion of the stopper ultimately formed.
It addition, in first time forming process, just can obtain that there is the first height owing to being merely by the mode of extruding
Plication region 231, therefore the molding mode of plication region 231 is relatively simple, easy to operate；When second time molding, due to
Have the first height plication region 231 kidney-shaped structure 230 only by the axial force of core 550 with by fold 232
Strutting, therefore when molding, kidney-shaped structure 230 can't occur lateral shift.
Embodiment two:
Refer to shown in Fig. 1, Fig. 6, Figure 10 and Figure 11, with the stopper manufacture method in first embodiment generally
Identical, the stopper manufacture method of the present embodiment includes the knitted body 100 (referring to Fig. 1) forming closed at both ends；By described
Knitted body 100 forms the first bodies 200, and the first bodies 200 includes first disk-like structure 210, second dish
Shape structure 220, and it is connected to a kidney-shaped structure 230 between the first disk-like structure 210 and the second disk-like structure 220,
This kidney-shaped structure 230 circumference is provided with plication region 231, and this plication region 231 has the first height (referring to Fig. 6)；
The height of plication region 231 is shaped to the second height more than described first height, the first bodies 200 to be formed the
Two bodies 300 (referring to Figure 10)；One end of the second bodies 300 is arranged connector 140, is used for and conveying
Device is connected with each other (referring to Figure 11).
The difference is that only, for forming the plication region 231 of the first height and will there is the plication region of the first height
231 sizings to the plication region with the second height is formed in a mould, and the i.e. second bodies 300 is at one
Mould is formed.
The manufacture method of the second bodies 300 includes following several step:
First, seeing Figure 12, it is provided that the 3rd mould 600, the 3rd mould 600 includes the 3rd upper mold 620, the 3rd time
Enclose between mould 630, the 3rd upper mold 620 and described 3rd lower mold 630 and set one the 3rd cavity 610 of formation, the 3rd cavity
610 height adjustable.3rd cavity 610 in cylinder, the maximum compression diameter of a diameter of knitted body 100 of the 3rd inner chamber.
The 3rd locating slot or hole 611, location it is respectively equipped with on two opposing end surfaces of the 3rd cylindrical cavity 610.On 3rd
Mould 620 and the 3rd lower mold 630 are connected with each other by the 3rd connector 640, can be realized by described 3rd connector 640
Between 3rd upper mold 620 and the 3rd lower mold 630 closer or far from.Concrete, the 3rd upper mold 620 is provided with two the 3rd
Upper limb 621, the 3rd lower mold 630 is provided with two the 3rd lower edges 631, and the 3rd upper limb 621 is correspondingly arranged with the 3rd lower edge 631.
Now, the 3rd connector 640 is identical with the quantity of the 3rd upper limb 621 and the 3rd lower edge 631, specially two.Permissible
Being understood by, there is no particular limitation for the quantity of the 3rd upper limb 621 and the 3rd lower edge 631, when the 3rd upper limb 621 and
When the quantity of the 3rd lower edge 631 is one, the 3rd upper limb 621 and the 3rd lower edge 631 are substantially in around the 3rd cavity 610
Loop configuration.When the number of the 3rd upper limb 621 and the 3rd lower edge 631 is three or more, on the plurality of 3rd
Edge 621 and multiple 3rd lower edge 631 interval are arranged, and arrange around the 3rd cavity 610, now, and the 3rd connector
The number of 640 is not particularly limited, if the firm connection being capable of between the 3rd upper mold 620 and the 3rd lower mold 630
?.
Each 3rd upper limb 621 is provided with a third through-hole 622, and each 3rd lower edge 631 is correspondingly provided with the 3rd spiral shell
Pit 632.Each 3rd connector 640 all includes that the 3rd bolt 641 and two are for revolving with the 3rd bolt 641
The 3rd nut 642 closed, the external screw thread of the 3rd bolt 641 and the female thread of the 3rd screwed hole 632 match, the 3rd bolt
641 may pass through third through-hole 622.
Further, incorporated by reference to shown in Figure 13, the knitted body 100 of closed at both ends is placed in the 3rd cavity 610, and makes braiding
Each end with retainer ring 120 of body 100 is all placed in the 3rd locating slot or hole 611, location.By the 3rd spiral shell
Bolt 641 free end sequentially passes through 632, the 3rd nut 642 of the 3rd screwed hole, third through-hole 622, and another
Three nuts 642.Along the 3rd bolt 641 axial by close to each other to the 3rd upper mold 620 and the 3rd lower mold 630 until will compile
Knit body 100 to be compressed axially to less than the axial height of stopper under naturalness, it is preferable that knitted body 100 be axially compressed to
Its minimum constructive height；Screw the 3rd nut 642 being arranged on the 3rd bolt 641, make the 3rd upper limb 621 tightly be held on two
Between individual 3rd nut 642, thus realize the fixing of position between the 3rd upper limb 621 and the 3rd lower edge 631, now compile
Knit body 100 by deformation in the first bodies 200.It is appreciated that it is close to each other with the 3rd lower mold 630 in the 3rd upper mold 620
During, the knitted body 100 being located in the 3rd cavity 610 is compressed in the axial direction, when knitted body 100 is compressed into
During minimum constructive height, 111, the two ends of knitted body 100 form the first disk-like structure 210 and the second plate-like knot of plate-like respectively
Structure 220, the mid portion of knitted body 100 forms the some folds 232 axially arranged, i.e. forms plication region 231,
This plication region 231 has the first height, and the two sides of the most each fold 232 are superimposed with each other and make fold is flat form.
Furthermore, incorporated by reference to shown in Figure 14, two the 3rd relative 3rd spiral shells of nut 642 of the 3rd upper mold 620 both sides are located in regulation
The position of bolt 641, make the 3rd relative 3rd lower mold 630 of upper mold 620 away from, until the 3rd cavity 610 obtained is axial
On height be equal to required for height under the stopper naturalness that obtains, be located at the 3rd upper mold 620 liang by adjustment afterwards
The position of two the 3rd nuts 642 of side, fixes the relative position between the 3rd upper mold 620 and the 3rd lower mold 630, from
And the first bodies 200 is deformed into the second bodies 300.Now the plication region 231 of the first height is due to from axle
Rebound effect upwards, the height at axial direction increases.Concrete, the both sides of each fold 232 of plication region 231
Face is launched, and shape is at an angle, thus forms wavy or zigzag fold.It should be noted that now plication region 231
Height increase to second height.As can seen above, the plication region 231 obtaining that there is the second height, the 3rd cavity 610 are needed
Altitude range have certain restriction, the minimum constructive height of the most described 3rd cavity 610 to be substantially equal or smaller than described stopper axle
Minimum constructive height after compression, the maximum height of described 3rd cavity 610 is substantially equal or larger than stopper waist nature state
Under axial height.
In the present embodiment, other step forming stopper is identical with first embodiment, the most no longer describes in detail.
Identical with first embodiment, in the present embodiment, shaping the process in the second bodies 300 from the first bodies 200
In need not the first disk-like structure 210 and the second disk-like structure 220 are processed, thus avoid the first disk-like structure
210 and second disk-like structure 220 offset relative to kidney-shaped structure 230, or make kidney-shaped structure 230 be distorted
Situation.I.e. avoid the stopper waist ultimately formed send out further, since waist type structure 230 ultimately forms the waist of stopper
The phenomenon of raw distortion skew.
It addition, in the present embodiment, formed the second bodies 300 whole during need only to knitted body 100 is carried out
Thermal finalization.According to the mechanics of materials, the nickel-titanium metal silk after a thermal finalization, than the nickel after twice thermal finalization
Titanium silk elastic performance is more preferable, therefore the stopper waist elasticity obtained is good, is adapted to difform defect.
Further, since by have first height plication region 231 shape to the second height be by plication region 231 self
Rebound effect realize, thus without kidney-shaped structure 230 skew in the axial direction or the phenomenon of distortion occur.Furthermore,
Form the second bodies 300 only with the 3rd mould 600, also only passed through an operation, therefore mould is simple,
Easy to operate.
To sum up, by implementing the stopper manufacture method of the present invention and making mould, moulding process is simple, the waist after molding
Shape structure 230 does not haves distortion.Further, since waist type structure ultimately forms the waist of stopper, therefore stopper qualification rate
High.
Above in conjunction with accompanying drawing, embodiments of the invention are described, but the invention is not limited in above-mentioned being embodied as
Mode, above-mentioned detailed description of the invention is only schematic rather than restrictive, and those of ordinary skill in the art exists
Under the enlightenment of the present invention, in the case of without departing from present inventive concept and scope of the claimed protection, it may also be made that a lot of shape
Formula, within these belong to the protection of the present invention.
Claims (12)
1. a stopper manufacture method, including:
Webmaster shape knitted body is made the first bodies including the first disk-like structure and kidney-shaped structure, and ties in described kidney-shaped
The circumference of structure forms the plication region with the first height；
By the sizing of described plication region to the second height more than described first height, form the second bodies.
Stopper manufacture method the most according to claim 1, it is characterised in that described stopper manufacture method also includes
Described knitted body is made the second disk-like structure, described second disk-like structure and described first disk-like structure and lays respectively at described
The two ends of kidney-shaped structure.
Stopper manufacture method the most according to claim 1 and 2, it is characterised in that
Described stopper manufacture method also includes that closing both ends open and mid portion diameter makes net less than the webmaster of two ends diameter
The described knitted body of tubulose.
Stopper manufacture method the most according to claim 2, it is characterised in that
The making of described first bodies includes: inserted by described knitted body in the first cavity of the first mould；Utilize described
One mould is compressed axially described knitted body to forming described first disk-like structure and described second disk-like structure, and at described waist
The described plication region of upper formation；Plication region described in thermal finalization is to described first height, and the first plate-like described in thermal finalization is tied respectively
Structure and described second disk-like structure.
Stopper manufacture method the most according to claim 2, it is characterised in that
The making of described second bodies includes: provides and has the second mould of the second cavity, and described second mould includes can be from
The core removed in described second cavity；
Described core is placed in described first bodies, uses described core the plication region with the first height axially to be supportted
Open to the second height, and
Described core is inserted in described second cavity together with described first bodies and thermal finalization, obtain described second bodies.
Stopper manufacture method the most according to claim 2, it is characterised in that
The manufacture method of described first bodies and the second bodies includes:
3rd mould with adjustable for height 3rd cavity is provided；
Described knitted body is inserted in described 3rd cavity, and described knitted body is axially pressed by the height regulating described 3rd cavity
Contracting until described knitted body mid portion formed have described first height plication region, at the two ends of described knitted body
Part forms described first disk-like structure and described second disk-like structure respectively；
The height regulating described 3rd cavity makes described plication region axially recoil to described second height thermal finalization.
7. according to the stopper manufacture method described in claim 5 or 6, it is characterised in that described heat setting temperature scope is
400 DEG C～550 DEG C, heat-setting time scope is 1～10 minute.
8., for making a mould for stopper, described stopper has a waist, it is characterised in that described mould bag
Including the first mould and the second mould, described first mould has the first cavity, described second mould have the second cavity and
The core that can remove in described second cavity, the height of described second cavity is more than the height of described first cavity；
Described first housing depth is less than the axial height under described stopper naturalness, and the height of described second cavity is basic
Equal to the axial height under described stopper naturalness.
Mould for making stopper the most according to claim 8, it is characterised in that described core includes a post
Shape part, described stylolitic part can be placed in the waist of described stopper, and the height of described stylolitic part is substantially equal to institute
State the height of waist under stopper naturalness.
10., for making a mould for stopper, described stopper has a waist, it is characterised in that described mould
Having adjustable for height cavity, the minimum constructive height of described cavity is substantially equal or smaller than the minimum after described stopper is compressed axially
Highly, the axial height under the maximum height of described cavity is substantially equal or larger than described stopper waist nature state.
11. moulds for making stopper according to claim 10, it is characterised in that described mould includes upper mold
And lower mold, described upper mold and lower mold are jointly enclosed and are set the described cavity of formation；
Described upper mold is provided with at least one upper limb, and described lower mold is provided with at least one lower edge, at least one upper limb described and institute
Stating at least one lower edge all to arrange around described cavity, described upper limb and described lower edge are correspondingly arranged and are connected by least one
Fitting mutually can be connected closer or far from ground.
12. moulds for manufacturing stopper according to claim 11, it is characterised in that described lower edge is provided with at least
One screwed hole, described upper limb is provided with at least one through hole,
Each described connector all includes that a bolt and two nuts, each described bolt free end all sequentially pass through correspondence and set
The screwed hole of the lower edge put and the through hole of upper limb, described bolt is connected with the screw thread of described lower edge；Two described nuts all revolve
Together on described bolt, and described upper limb is located between two described nuts.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510377505.4A CN106308867B (en) | 2015-07-01 | 2015-07-01 | Plugging device production method and plugging device make mold |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510377505.4A CN106308867B (en) | 2015-07-01 | 2015-07-01 | Plugging device production method and plugging device make mold |
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| CN106308867B CN106308867B (en) | 2019-02-12 |
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| CN110281643A (en) * | 2019-06-26 | 2019-09-27 | 利辛县亿隆筛网有限公司 | A kind of laying apparatus of the printing mesh screen based on shape memory high molecule material |
| CN112773419A (en) * | 2020-12-31 | 2021-05-11 | 上海锦葵医疗器械股份有限公司 | Heart patent foramen ovale plugging device with flat two end surfaces and manufacturing method thereof |
| CN112932561A (en) * | 2021-02-01 | 2021-06-11 | 上海锦葵医疗器械股份有限公司 | Heart ventricular septal defect occluder with flat two end surfaces and manufacturing method thereof |
| CN112932588A (en) * | 2021-02-01 | 2021-06-11 | 上海锦葵医疗器械股份有限公司 | Degradable heart artery duct patent occluder and manufacturing method thereof |
| CN112998796A (en) * | 2019-12-20 | 2021-06-22 | 先健科技(深圳)有限公司 | Conveying device |
| WO2021120625A1 (en) * | 2019-12-20 | 2021-06-24 | 先健科技(深圳)有限公司 | Occluder, occluder system, and conveying device |
| CN114559642A (en) * | 2022-02-28 | 2022-05-31 | 上海形状记忆合金材料有限公司 | Preparation method and preparation device for closing end of plugging device |
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| CN112932588A (en) * | 2021-02-01 | 2021-06-11 | 上海锦葵医疗器械股份有限公司 | Degradable heart artery duct patent occluder and manufacturing method thereof |
| CN114559642A (en) * | 2022-02-28 | 2022-05-31 | 上海形状记忆合金材料有限公司 | Preparation method and preparation device for closing end of plugging device |
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