CN201147385Y - Choking device of septal defect between atrium and ventricle - Google Patents
Choking device of septal defect between atrium and ventricle Download PDFInfo
- Publication number
- CN201147385Y CN201147385Y CNU2007203092265U CN200720309226U CN201147385Y CN 201147385 Y CN201147385 Y CN 201147385Y CN U2007203092265 U CNU2007203092265 U CN U2007203092265U CN 200720309226 U CN200720309226 U CN 200720309226U CN 201147385 Y CN201147385 Y CN 201147385Y
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- China
- Prior art keywords
- shroud
- blocking device
- hub disk
- changeover portion
- septal defect
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- 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 - Lifetime
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Abstract
The utility model discloses a device for blocking the septal defect of atriums and ventricles, which is safer and more convenient for the operation release. The blocking device is a memory alloy wire braided fabric and has a structure which is as follows: one end of the blocking device is provided with a front disc 1, the key point is a transition section 2 which is integrated with the front disc 1 and has a radius less than that of the front disc 1, a metal wire of the transition section 2 is provided with a contracting area 3 in the axes direction and is connected with a rear disc 4, the middle part of the outer surface of the rear disc 4 is provided with a fixing end 5 with internal threads, and a dion thin slice is arranged inside the front disc 1. The blocking device is designed scientifically; particularly, a waist part which is formed by integrally weaving the front disc and the rear disc and is arranged between the front disc and the rear disc in the prior art does not exist, and the interactional tension force between the front disc and the rear disc in the prior art does not exist, therefore, the state of the biggest size is achieved rapidly after the front disc is released from a tube of a towveyor.
Description
Technical field:
This utility model relates to a kind of medical apparatus and instruments, specifically relates to the heart room in the interventional therapy, a kind of blocking device of ventricular septal defect.
Background technology:
The cardiopulmonary organ of human body ratio per capita has groups of people's cardiopulmonary organ to have geneogenous defective, and for example atrial septal defect (ASD) is exactly common disease, and the past, sutural treatment was carried out in this operation of need beginning to speak.In recent years along with the maturation and the development of interventional therapy method, now generally be to utilize the tubulose conveyer device that the blocking device of one nitinol alloy wire braiding is sent into the atrial septal defect place, damaged place is blocked, through forming thrombosis after a while and forming the cell cortex, developing comparatively sophisticated in the prior art is the blocking device of the designed production of AGA Medical Corp. of the U.S., concrete visible CN1106828 or CN1269707, disclosed blocking device has solved the interventional therapy problem of atrial septal defect really in the above-mentioned patent documentation, but openly also there are some defectives in it with claimed product, be the sketch map that product is inserted the process of release in the above-mentioned patent documentation in human body as shown in Figure 1, at first be that blocking device is put into a tubulose carrier, when the release end of carrier arrives the room, the ventricular septal defect position, discharge blocking device, A1～A8 among Fig. 1 is the substep signal of dispose procedure, the A1 step is that shroud disengages, the wiry of one that this moment, shroud was subjected to waist pins down, and the radius of shroud does not reach the maximum radius of no stress; The A2 step is that waist disengages, and this moment, the radius of shroud did not reach maximum radius yet; The A3 step is that hub disk disengages the part, the radius of shroud and aforementioned A1, the radius of A2 is suitable, in dispose procedure, pulling release and blocking device before and after the doctor wants constantly, whether the maximum radius of souning out shroud and/or waist is greater than the notch size of defect, as shown in Figure 1, in fact only when A7～A8 step, the size of shroud and/or waist is just launched, this can cause the erroneous judgement of doctor when settling blocking device, think that the size of blocking device is not inconsistent, the blocking device that from human body, takes out carrier and do not discharge, replacing the blocking device of new different size inserts again, the repeatable operation of this operation has increased the risk of operation, and the blocking device of existing technology is because the imperfection of structural design, cause the blocking device size to launch too late, therefore the size of blocking device may with patient's damaged opening size mismate, the one, cause operation repeatedly, the 2nd, the size mismate can produce the possibility that gets loose of blocking device, existing in addition blocking device all is to be formed by very thin Ultimum Ti silk one braiding, wherein shroud mainly plays plugging action, hub disk mainly plays clamping action, because before the above-mentioned blocking device, hub disk and waist are equipped with mylar and play plugging action, the clamping action power of fine wire is less, less stable and production cost are higher, and how avoiding above-mentioned defective and improving atrial septal defect is a problem that urgency is to be solved.
Summary of the invention:
Goal of the invention of the present utility model be disclose a kind of be convenient to perform the operation discharge and the blocking device of safer atrial septal defect.
Realize that technical solution of the present utility model is as follows: blocking device is a memory alloy wire fabric, one end is a shroud 1, key is and the changeover portion 2 of shroud 1 an integrally formed radius less than shroud 1 radius, the tinsel of changeover portion 2 connects hub disk 4 again after axis direction has a shrinking zone 3, there is the stiff end 5 of a tool female thread in hub disk 4 outer surface centres, are provided with the polyester thin slice in the shroud 1.
The edge of above-mentioned front and back dishes (1,4) is all to mutual direction bending, forms one discoid.
Form an area of space between the shrinking zone 3 of above-mentioned changeover portion 2 and the hub disk 4; Or/and changeover portion 2 nearby coil 1 position also to axis direction have a shrinking zone 3 '.
One attaching means 6 is arranged between above-mentioned changeover portion 2 and the hub disk 4; Or/and between changeover portion 2 and the hub disk 4 and between changeover portion 2 and the shroud 1 attaching means 6 is arranged respectively.
Above-mentioned hub disk 4 is a petal-shaped.
Above-mentioned hub disk 4 is the coiled coil shape.
Above-mentioned shroud 1 and hub disk 4 are petal-shaped and changeover portion 2 is netted.
Be provided with polyester cloth in the above-mentioned shroud 1, the polyester line of winding is arranged on hub disk 4 tinsels.
Key of the present utility model is to be connected with hub disk after between transition region and hub disk a gap being arranged again, the waist that above-mentioned gap has at first cut off existing blocking device was connected with the wiry of higher position of the one of hub disk, coming down to make the rear end of transition region is a free end, stressed (by the pulling force of hub disk) wiry is cut off, shroud and partial transition region have in the carrier pipe can return to primary naturalness once discharging, the maximum radius that is shroud is launched fully, operative doctor push-and-pull gently just can judge whether blocking device cooperates with damaged opening size, can greatly improve the doctor judgment accuracy of putting blocking device and the one-time success rate that improves operation, and the hub disk that has increased tinsel intensity causes the raising of chucking power, and having improved stability and reduced machining complexity and cost, is a kind of regeneration product of novel blocking device.
Description of drawings:
Fig. 1 is that the decomposition of dispose procedure launches sketch map in the operation of blocking device of prior art.
Fig. 2 is that the decomposition of dispose procedure in the operation of the present utility model launches sketch map.。
Fig. 3 is for being the structural representation of first embodiment of the present utility model.
Fig. 4 is the left TV structure sketch map of Fig. 3.
Fig. 5 is the shroud structural representation of Fig. 3.
Fig. 6 is the hub disk structural representation of Fig. 3.
Fig. 7 is the structural representation of second embodiment of the present utility model.
Fig. 8 is the left TV structure sketch map of Fig. 7.
Fig. 9 is the shroud structural representation of Fig. 7.
Figure 10 is the hub disk structural representation of Fig. 7.
Figure 11 is the structural representation of the 3rd embodiment of the present utility model.
Figure 12 is the left TV structure sketch map of Figure 11.
Figure 13 is the shroud structural representation of Figure 11.
Figure 14 is the hub disk structural representation of Figure 11.
Figure 15 is the structural representation of the 4th embodiment of the present utility model.
Figure 16 is the left TV structure sketch map of Figure 15.
Figure 17 is the shroud structural representation of Figure 15.
Figure 18 is the hub disk structural representation of Figure 15.
Figure 19 is the structural representation of the 5th embodiment of the present utility model.
Figure 20 is the left TV structure sketch map of Figure 19.
Figure 21 is the shroud structural representation of Figure 19.
Figure 22 is the hub disk structural representation of Figure 19.
The specific embodiment:
See also Fig. 1～Figure 22, specific embodiment of the utility model is as follows: blocking device is a memory alloy wire fabric, the one end is a shroud 1, particularly with the changeover portion 2 of shroud 1 an integrally formed radius less than shroud 1 radius, the tinsel of changeover portion 2 flange 4 again after axis direction has a shrinking zone 3, there is the stiff end 5 of a tool female thread in hub disk 4 outer surface centres, are provided with the polyester thin slice in the shroud 1; Memory alloy wire is the Nitinol tinsel, one end of many alloy silks is gathered mutually by a front jig 7 and is welded fixing, many alloy silks are that the center is woven to netted disk with front jig 7, form shroud 1, many alloy silks behind the formation shroud 1 continue braiding, and form a changeover portion 2 at the inner surface of shroud 1, the radius of changeover portion 2 is less than the radius of shroud 1, the diameter of changeover portion 2 and room, the chamber lacks opening and conforms to substantially, form the alloy silk of changeover portion 2 and extend braiding to axis direction, form a shrinking zone 3, upwards be woven into hub disk 4 to the axis normal direction again after forming shrinking zone 3, this shrinking zone makes the wall of changeover portion 2 be the curved surface recess between changeover portion 2 and the hub disk 4, many alloy silks its other end and stiff end 5 fixing (shown in Figure 3) after forming hub disk 4 with female thread, stiff end 5 is anchor clamps, and it can be connected or break away from by the seal wire in female thread and the carrier 8; Between above-mentioned changeover portion 2 and the hub disk 4 because shrinking zone 3 that has an inside curved surface to cave in, form an area of space between making changeover portion 2 and hub disk 4 linking to each other, the waist that this area of space has at first cut off existing blocking device was connected with the wiry of higher position of the one of hub disk, coming down to make the rear end of changeover portion 2 is a free end, stressed (by the pulling force of hub disk 4) of alloy silk is cut off, shroud and partial transition region can return to primary naturalness once discharging in carrier 8, the maximum radius that is shroud is launched (as shown in Figure 2) fully, and shrinking zone 3 can strengthen changeover portion 2 radial support power, in the shroud 1 and be provided with polyester thin slice (as the poly fluoride film etc.).
See also Fig. 3, the edge of described front and back dish 1,4 is all to mutual direction bending, forms one discoid; There is a bending at the edge of shroud 1 to changeover portion 2 directions, form discoid plate edge, there is a bending at the edge of hub disk 4 also changeover portion 2 directions and forms discoid plate edge, and the plate edge of front and back dish 1,4 is relative status, and this two plate edge helps the clamping to defect periphery wall.
Form an area of space between the shrinking zone 3 of described changeover portion 2 and the hub disk 4; Or/and changeover portion 2 nearby coil 1 position also to axis direction have a shrinking zone 3 '; Can to make the rear end of changeover portion 2 be free end to formed area of space between the shrinking zone 3 of changeover portion 2 and the hub disk 4, makes shroud 1 can quick and completely launch (shown in Figure 3); For making shroud 1 more quick and complete expansion, changeover portion 2 also is provided with a shrinking zone 3 to axis direction ' (shown in Figure 15) in the position of nearby coiling 1, make to reach between changeover portion 2 and the hub disk 4 between changeover portion 2 and the shroud 1 shrinking zone is respectively arranged, be formed with two area of space, can make shroud 1 more quick and complete expansion.
One attaching means 6 is arranged between described changeover portion 2 and the hub disk 4; Or/and between changeover portion 2 and the hub disk 4 and between changeover portion 2 and the shroud 1 attaching means 6 is arranged respectively; After one group many alloy silks are woven into shroud 1 and changeover portion 2, one end of alloy silk is by attaching means 6 fixing (shown in Figure 7), attaching means 6 is anchor clamps, while is also fixed by attaching means 6 together by the end that many alloy silks of another group constitute the alloy silk of hub disk 4, the other end that forms the alloy silk of hub disk 4 is fixed by the anchor clamps 5 of tool female thread again, dish 1,4 formed two independent structures before and after attaching means 6 made, make disengaging of shroud 1 not influenced by involving of hub disk 4, and hub disk 4 can by many alloy silks be woven to netted for petal-shaped or by single alloy silk spiral be the coiling shape; For making disengaging thoroughly of shroud 1 not influenced by involving of hub disk 4, between changeover portion 2 and shroud 1, be provided with an attaching means 6, and between changeover portion 2 and hub disk 4, also be provided with an attaching means 6, these two attaching means 6 make between changeover portion 2 and shroud 1 and the hub disk 4 and all are formed with a shrinking zone, so that shroud 1 more quick and complete expansion.
See also Fig. 7～Figure 10, above-mentioned hub disk 4 is a petal-shaped; It is petal-shaped (shown in Figure 10) that hub disk 4 is compiled by many alloy silks, the alloy silk is 4～8, every alloy silk forms a petal shaped as frame, each is petal presses the circumference uniform distribution setting, a plurality of petal shaped as frames are formed an approximate umbrella face, be sewed with polyester cloth on a plurality of petal shaped as frames, petal-like hub disk 4 greatly reduces the alloy silk use amount of blocking device and is beneficial to disengaging of shroud 1.
See also Figure 11～Figure 14, above-mentioned hub disk 4 is the coiled coil shape; Hub disk 4 is undertaken close around spiral and be coiled into discoidly by an alloy silk, and be wound with the polyester line on the alloy silk, and the hub disk 4 of coiled coil shape greatly reduces the alloy silk use amount of blocking device and is beneficial to disengaging fast of shroud 1.
See also Figure 19～Figure 22, described shroud 1 and hub disk 4 are petal-shaped and changeover portion 2 is netted; For reducing disengaging fast of alloy silk use amount and shroud 1, shroud 1, hub disk 4 and changeover portion 2 are made of three combination spun golds respectively, wherein shroud 1 and hub disk 4 are petal-shaped, 2 of changeover portions are netted, the shroud 1 of filament structure and hub disk 4 have reduced alloy silk use amount, the length of single alloy silk greatly shortens, and the petal-shaped of shroud 1 and hub disk 4 can stagger mutually so that blocking device is difficult for producing radial displacement, nerve after the shroud 1 of filament structure and the expansion of hub disk 4, trafficability characteristic and propelling movement property are better, adherent preferably and locating effect can be arranged, netted changeover portion 2 then has two relative curved surface depressions, forms two shrinking zones, and shroud 1 is disengaged fast.
Fig. 1 is that the decomposition of dispose procedure launches sketch map in the operation of blocking device of prior art, C shown in the figure is defect (being human heart room, ventricular septal defect position), R1 is stopper shroud design external diameter (being the diameter after shroud launches fully), and R2 is the diameter (being damaged opening diameter) of defect.
Claims (8)
1. the blocking device of a heart room, ventricular septal defect, blocking device is a memory alloy wire fabric, one end is shroud (1), it is characterized in that and the changeover portion (2) of the integrally formed radius of shroud (1) less than shroud (1) radius, the tinsel of changeover portion (2) connects hub disk (4) again after axis direction has a shrinking zone (3), there is the stiff end (5) of a tool female thread in hub disk (4) outer surface centre, and shroud is provided with the polyester thin slice in (1).
2. the blocking device of heart according to claim 1 room, ventricular septal defect, the edge that it is characterized in that described front and back dishes (1,4) be all to mutual direction bending, forms one discoid.
3. the blocking device of heart according to claim 1 and 2 room, ventricular septal defect is characterized in that forming between the shrinking zone (3) of described changeover portion (2) and the hub disk (4) area of space; Or/and changeover portion (2) nearby coils the position of (1) also to axis direction one shrinking zone (3 ').
4. the blocking device of heart according to claim 3 room, ventricular septal defect is characterized in that between described changeover portion (2) and the hub disk (4) attaching means (6) being arranged; Or/and between changeover portion (2) and the hub disk (4) and between changeover portion (2) and the shroud (1) attaching means (6) is arranged respectively.
5. the blocking device of heart according to claim 3 room, ventricular septal defect is characterized in that described hub disk (4) is petal-shaped.
6. the blocking device of heart according to claim 3 room, ventricular septal defect is characterized in that described hub disk (4) is the coiled coil shape.
7. the blocking device of heart according to claim 3 room, ventricular septal defect is characterized in that described shroud (1) and hub disk (4) are petal-shaped and changeover portion (2) is netted.
8. the blocking device of heart according to claim 3 room, ventricular septal defect is characterized in that being provided with polyester cloth in the described shroud (1), and the polyester line of winding is arranged on hub disk (4) tinsel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203092265U CN201147385Y (en) | 2007-12-29 | 2007-12-29 | Choking device of septal defect between atrium and ventricle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203092265U CN201147385Y (en) | 2007-12-29 | 2007-12-29 | Choking device of septal defect between atrium and ventricle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201147385Y true CN201147385Y (en) | 2008-11-12 |
Family
ID=40115155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007203092265U Expired - Lifetime CN201147385Y (en) | 2007-12-29 | 2007-12-29 | Choking device of septal defect between atrium and ventricle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201147385Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107019529A (en) * | 2017-05-26 | 2017-08-08 | 潘湘斌 | A kind of atrial septal defect plugging device and its interventional method |
| CN108888302A (en) * | 2018-07-03 | 2018-11-27 | 哈尔滨工业大学 | The degradable load medicine plugging device of one kind, plugging device forming and expansion gathering method |
-
2007
- 2007-12-29 CN CNU2007203092265U patent/CN201147385Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107019529A (en) * | 2017-05-26 | 2017-08-08 | 潘湘斌 | A kind of atrial septal defect plugging device and its interventional method |
| CN108888302A (en) * | 2018-07-03 | 2018-11-27 | 哈尔滨工业大学 | The degradable load medicine plugging device of one kind, plugging device forming and expansion gathering method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081112 |