CN212394977U - Plugging device - Google Patents
Plugging device Download PDFInfo
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- CN212394977U CN212394977U CN202021962596.0U CN202021962596U CN212394977U CN 212394977 U CN212394977 U CN 212394977U CN 202021962596 U CN202021962596 U CN 202021962596U CN 212394977 U CN212394977 U CN 212394977U
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- clamping
- occlusion device
- plugging
- clamping portion
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Abstract
The utility model provides a plugging device, which comprises a first plugging piece and a second plugging piece which are oppositely arranged; the first plugging piece comprises a deformable first clamping part, and a first connecting part is arranged on one side, facing the second plugging piece, of the first clamping part; the second plugging piece comprises a deformable second clamping part, and a second connecting part is arranged on one side, facing the first plugging piece, of the second clamping part; in the opposite direction of the first blocking piece and the second blocking piece, the size of the first connecting part is larger than that of the first clamping part, and the size of the second connecting part is larger than that of the second clamping part; the first connecting portion and the second connecting portion are connected and located in a defect gap to be plugged, and the first clamping portion and the second clamping portion are clamped on the wall surface around the gap.
Description
Technical Field
The utility model relates to the technical field of medical equipment, concretely relates to plugging device.
Background
The heart defect stopper is an implanted medical appliance for treating congenital heart defects. In 1974, King and MiRRs completed transcatheter interventional therapy for the first time for secondary fenestrated Atrial Septal Defect (ASD), and since then, with the continued improvement of occlusion devices, especially since 1997, with the advent of amparatzer nickel-titanium alloy woven occluders, nickel-titanium alloy woven occluders were widely used for interventional therapy of congenital heart diseases such as Atrial Septal Defect (ASD), Ventricular Septal Defect (VSD), Patent Ductus Arteriosus (PDA), and Patent Foramen Ovale (PFO). At present, minimally invasive surgery through a catheter interventional occluder is an important method for treating congenital heart diseases such as ASD, VSD, PDA and PFO.
The occluder in the prior art generally comprises double-disc occluding surfaces which are parallel at intervals, and the double-disc occluding surfaces are clamped and fixed after release. The plugging device has limited clamping force, is easy to displace and even has the risk of falling off.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the background technology, the utility model provides a plugging device, which comprises a first plugging piece and a second plugging piece which are arranged oppositely;
the first plugging piece comprises a deformable first clamping part, and a first connecting part is arranged on one side, facing the second plugging piece, of the first clamping part; the second plugging piece comprises a deformable second clamping part, and a second connecting part is arranged on one side, facing the first plugging piece, of the second clamping part; in the opposite direction of the first blocking piece and the second blocking piece, the size of the first connecting part is larger than that of the first clamping part, and the size of the second connecting part is larger than that of the second clamping part;
the first connecting portion and the second connecting portion are connected and located in a defect gap to be plugged, and the first clamping portion and the second clamping portion are clamped on the wall surface around the gap.
In some embodiments, the first clamping portion is centrally symmetric about the first connection portion and the second clamping portion is centrally symmetric about the second connection portion.
In some embodiments, the first clamping portion is curved toward the second sealing member side, and the second clamping portion is curved toward the first sealing member side.
In some embodiments, the first and second clip portions are not curved in the same arc.
In some embodiments, the first and second clamping portions are umbrella-shaped or petal-shaped.
In some embodiments, the first clip portion includes a plurality of first leaflets disposed circumferentially about the first connection portion, and the second clip portion includes a plurality of second leaflets disposed circumferentially about the second connection portion.
In some embodiments, the first and second leaflets are annular and disposed in an interdigitating relationship with each other adjacent the first leaflet and with each other adjacent the second leaflet.
In some embodiments, the first and second leaflets are strip-shaped.
In some embodiments, the first leaflet is disposed crosswise to the second leaflet after the first connecting portion is connected to the second connecting portion.
In some embodiments, the occlusion device is made of a degradable material.
In some embodiments, the first and second closures are of a double-layer hollow structure or a single-layer solid structure.
The utility model discloses owing to adopt above technical scheme, make it compare with prior art, have following advantage and positive effect:
the utility model provides a plugging device, through injecing on the direction of connection at first connecting portion and second connecting portion, the size of first connecting portion is greater than the size of first clamping part, the size of second connecting portion is greater than the size of second clamping part, make when first connecting portion are connected with the second connecting portion, one side that first clamping part is relative with the second clamping part can extrude each other certainly and warp formation pretightning force, thereby firm, stable centre gripping is in both sides, the clamping-force is good, difficult skew or the problem that drops appears.
Drawings
The above and other features and advantages of the present invention will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:
fig. 1 is a schematic illustration of the separation between a first closure member and a second closure member in example 1;
fig. 2 is a schematic view of the connection between the first block piece and the second block piece in example 1;
fig. 3 is a schematic illustration of the separation between the first and second plugs of example 2;
fig. 4 is a schematic view of the connection between the first block piece and the second block piece in example 2;
fig. 5 is a first schematic diagram showing the first block piece and the second block piece separated from each other in example 3;
fig. 6 is a second schematic illustration of the separation between the first and second plugging members in example 3;
fig. 7 is a third schematic view of the separation between the first blocking member and the second blocking member in example 3;
FIG. 8 is a diagram showing a state of use of the plugging device in example 3;
fig. 9 is a schematic perspective view of the first block piece and the second block piece in example 4 after being connected;
FIG. 10 is a side view of the first block piece of example 4 after attachment to the second block piece;
FIG. 11 is a front view of the first block piece of example 4 after being connected to a second block piece;
fig. 12 is a schematic perspective view of the first block piece and the second block piece of example 5 after being connected;
FIG. 13 is a cross-sectional view of the first block piece in example 5 after being connected to a second block piece;
fig. 14 is an elevation view of the first closure member of example 5 after attachment to the second closure member.
Detailed Description
The invention will be described in more detail hereinafter with reference to the accompanying drawings showing embodiments of the invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
The utility model provides a plugging device, which comprises a first plugging piece and a second plugging piece which are oppositely arranged; the first plugging piece comprises a deformable first clamping part, and a first connecting part is arranged on one side, facing the second plugging piece, of the first clamping part; the second plugging piece comprises a deformable second clamping part, and a second connecting part is arranged on one side, facing the first plugging piece, of the second clamping part; in the opposite direction of the first plugging piece and the second plugging piece, the size of the first connecting part is larger than that of the first clamping part, and the size of the second connecting part is larger than that of the second clamping part; when the plugging device is used, the first connecting part and the second connecting part are connected and positioned in a defect gap to be plugged, and the first clamping part and the second clamping part are clamped on the wall surface around the gap.
The utility model discloses an inject on first connecting portion and second connecting portion direction of connection, the size of first connecting portion is greater than the size of first clamping part, the size of second connecting portion is greater than the size of second clamping part, make when first connecting portion are connected with the second connecting portion, first clamping part can extrude each other with one side that the second clamping part is relative and warp formation pretightning force or alternate each other, and then make first clamping part and second clamping part open the centre gripping and form the clamp force when clearance wall both sides in the use, thereby it is firm, stable centre gripping is in the both sides of clearance wall all around, the clamping-force is good, difficult skew or the problem that drops appears.
The utility model provides an occlusion device is applicable to circumstances such as Atrial Septal Defect (ASD), Ventricular Septal Defect (VSD), Patent Ductus Arteriosus (PDA) and patent foramen ovale, and the restriction is not done here.
The following description will be made specifically by taking the application to atrial septal defects as an example.
Example 1
Referring to fig. 1-2, the present invention provides a plugging device comprising a first plugging member 110 and a second plugging member 120, wherein the first plugging member 110 and the second plugging member 120 are disposed opposite to each other.
In this embodiment, the first closure 110 comprises a first clamping portion 111 and a first connecting portion 112, the first connecting portion 112 being arranged on the side of the first clamping portion 111 facing the second closure 120; the second closure 120 comprises a second clamping portion 121 and a second connecting portion 122, the second connecting portion 122 being arranged on a side of the second clamping portion 121 facing the first closure 110. The first connecting portion 112 and the second connecting portion 122 are connected to each other and disposed in the defect space on the atrial septum, and the first clamping portion 111 and the second clamping portion 121 are used for clamping and fixing at two sides of the atrial septum.
Among them, the preferred first connecting portion 112 is disposed at the center position of one side of the first clamping portion 111, i.e. the first connecting portion 112 is symmetrical with respect to the center of the first clamping portion 111; the second connection portion 122 is disposed at a central position of one side of the second clamping portion 121, i.e., the second connection portion 122 is centrally symmetrical with respect to the second clamping portion 121. The design is beneficial to ensuring the uniformity of the clamping force when the first clamping part 111 and the second clamping part 121 are clamped in the use process. Of course, in other embodiments, the position of the first connecting portion 112 on the first clamping portion 111 and the position of the second connecting portion 122 on the first clamping portion 121 may also be adjusted according to specific situations, and are not limited herein.
In the present embodiment, the first clamping portion 111 is curved in an arc shape toward the second blocking member 120 side from the center toward the outer edge, and the second clamping portion 121 is curved in an arc shape toward the first blocking member 110 side from the center toward the outer edge, as shown in fig. 1; the first clamping portion 111 and the second clamping portion 121 may be shaped like an umbrella, a petal, or the like, and are not limited herein and may be adjusted according to specific situations. The circular arc-shaped first clamping portion 111 and the circular arc-shaped second clamping portion 121 are beneficial to ensuring the clamping effect between the two clamping portions.
Further, in the opposite direction of the first blocking piece 110 and the second blocking piece 120, i.e. the connection direction of the first connection portion 112 and the second connection portion 122, the dimension R111 of the first connection portion 112 is greater than the dimension R112 of the first clamping portion, and the dimension R121 of the second connection portion 122 is greater than the dimension R122 of the second clamping portion 121; the arrangement is such that, when the first connecting portion 112 is connected to the second connecting portion 122, the opposite sides of the first clamping portion 111 and the second clamping portion 121 are pressed against each other to form a pre-tightening force F, as shown in fig. 2, when in use, the pre-tightening force F is converted into a clamping force applied to the two side walls of the room partition, so as to achieve clamping and fixing.
Of course, in other embodiments, the size difference between the first connecting portion 112 and the first clamping portion 111, and the size difference between the second connecting portion 121 and the second clamping portion 122 are not limited to the above, and can be adjusted according to specific situations, and are not limited herein.
In the present embodiment, the first connection portion 112 and the second connection portion 122 can be connected by riveting/bonding/heat melting/fastening/tightening band/tightening rope/hook/buckle, etc., which is not limited herein and can be adjusted according to specific situations.
In this embodiment, the first clamping portion 111 of the first plugging member 110 and the second clamping portion 121 of the second plugging member 120 are preferably deformable elastic structures, so that the two are pressed and deformed to generate a pre-tightening force to realize clamping.
In this embodiment, the first and second occluding members 110 and 120 are preferably made of degradable materials; because the non-degradable plugging device still exists in the defect part for a long time after the endothelialization is completed, long-term complications and adverse effects are easy to generate, including atrioventricular block, valve injury, residual shunt, heart abrasion, nickel allergy and the like; the plugging device made of degradable materials can complete the effect of plugging defects after being implanted into a human body, and after plugging is completed, the materials forming the plugging device are degraded in the body and finally metabolized by the body into CO2 and water to be discharged out of the body, so that the human body is prevented from being influenced by foreign matters for a long time.
Further, the degradable material includes, but is not limited to, polylactic acid (PRA), polyglycolic acid (PGA), polylactic acid-glycolic acid copolymer (PRGA), Polyhydroxyalkanoate (PHA), Polydioxanone (PDO), Polycaprolactone (PCR), etc., and the like.
Of course, in other embodiments, the first plugging member 110 and the second plugging member 120 may also be made of a memory alloy such as NiTi, and the plugging member made of such a material is more favorable for satisfying the setting of the pre-tightening force.
In the present embodiment, the first blocking member 110 and the second blocking member 120 have a double-layer hollow structure, as shown in fig. 1-2, which has advantages in that each layer of the double-layer hollow structure is relatively thin and has better elasticity, and the releasing mechanism is easier to set and easy to recover and release. Of course, in other embodiments, the first blocking element 110 and the second blocking element 120 may not be a double-layer hollow structure, and may be adjusted according to specific needs, which is not limited herein.
In this embodiment, the first blocking element 110 and the second blocking element 120 may be integrally manufactured by processes of knitting, cutting, 3D printing, and the like, and may be used after being manufactured separately and then being extrusion-assembled. The opportunity of assembly the utility model discloses do not do the restriction, can be before dispatching from the factory with first shutoff piece 110 and second shutoff piece 120 assembled, the sterilization packing shipment also can be with first shutoff piece 110 and second shutoff piece 120 separately sterilization packing, connect the installation again before the operation and use. When the plugging device is used, the plugging device is compressed to enter the conveying device and conveyed to a target position; in operation, a certain reference is needed to determine whether the occluding device reaches the target site, and the release state of the occluding device is generally observed through development.
Example 2
Referring to fig. 3 to 4, this embodiment is an adjustment based on embodiment 1.
In this embodiment, the first blocking element 110 and the second blocking element 120 are of a single-layer solid structure, which is thinner than the double-layer hollow structure, and has the advantages of less material, low cost, small space occupation, and easy loading into the conveying device.
In this embodiment, the rest of the structure of the occlusion device can refer to the description of embodiment 1, and is not limited herein.
Example 3
Referring to fig. 5 to 8, this embodiment is an adjustment based on embodiment 1.
In this embodiment, the first clamping portion 111 and the second clamping portion 121 are umbrella-shaped.
Specifically, the first clamping portion 111 includes a plurality of first valve leaflets 113, the plurality of first valve leaflets 113 are uniformly distributed circumferentially around the first connecting portion, and the adjacent first valve leaflets 113 are overlapped and crossed to form an umbrella-shaped first clamping portion 111; similarly, the second clamping portion 121 also includes a plurality of second leaflets 123, and the plurality of second leaflets 123 are uniformly distributed around the second connecting portion 122 in the circumferential direction and are overlapped and crossed between adjacent second leaflets 123 to form an umbrella-shaped second clamping portion 121.
The first leaflet 113 and the second leaflet 123 are annular, and one end of each of the first leaflet and the second leaflet converges to the center and is connected with the first connecting portion 112 and the second connecting portion 122. In the present embodiment, a plurality of annular leaflets distributed uniformly in the circumferential direction are used to form the first clamping portion and the second clamping portion, but the shape of the leaflets in other embodiments is not limited to the shape shown above, and can be adjusted according to specific situations.
In the present embodiment, the first clamping portion 111 and the second clamping portion 121 may have the same size in the radial direction, as shown in fig. 5, or may have a larger size and a smaller size, as shown in fig. 6; the curvature of the first clamping portion 111 and the second clamping portion 121 may also be different, for example, the first clamping portion 111 is in a flat umbrella shape, and the second clamping portion 121 is in a concave umbrella shape, as shown in fig. 7, which is not limited here and can be adjusted according to specific needs.
In use, as shown in fig. 8, the first connecting portion 112 and the second connecting portion 122 are connected to the defect space 131 on the atrial septum 130, the first clamping portion 111 and the second clamping portion 121 are clamped at both sides of the atrial septum 130, and the radians of the first leaflet 113 and the second leaflet 123 are stretched and pressed on both side wall surfaces of the atrial septum 130, so as to realize stable clamping.
In this embodiment, the rest of the structure of the occlusion device can refer to the description of embodiment 1, and is not limited herein.
Example 4
As shown in fig. 9 to 11, this embodiment is an adjustment based on embodiment 3.
In this embodiment, the first leaflet 113 and the second leaflet 123 have a size larger than that of embodiment 3, a number smaller than that of embodiment 3, and a degree of curvature larger than that of embodiment 3, so that the first clamping portion 111 and the second clamping portion 121 in this embodiment have a petal shape as a whole.
Further, in which the first leaflet 113 is larger than the second leaflet 123, after the first connecting portion 112 and the second connecting portion 122 are connected when not in use, each second leaflet 123 extends into the first leaflet 113 and is disposed crosswise, and there is no counter force between the first leaflet 113 and the second leaflet 123, as shown in fig. 10-11; when the device is just implanted into a target position, the first clamping part 111 and the second clamping part 121 are blocked by the atrial septum, and form a larger clamping force after being expanded, and the clamping force is clamped on two side wall surfaces of the atrial septum; in this embodiment, the clamping portion of the plugging device needs to be loosened compared with the above embodiment, but stress relaxation caused by long-term extrusion before use is avoided, and the plugging device has the advantage of better fatigue resistance.
In this embodiment, the rest of the structure of the occlusion device can refer to the description in embodiment 3, and is not limited herein.
Example 5
As shown in fig. 12 to 14, this embodiment is an adjustment based on embodiment 4.
In this embodiment, the first leaflet 113 and the second leaflet 123 are in a curved strip shape; when the first blocking element 110 is connected to the second blocking element 120, the first leaflet 113 and the second leaflet 123 are arranged in an intersecting and spaced manner, as shown in fig. 14, which is beneficial to further ensuring the clamping and pre-tightening effect.
In this embodiment, the rest of the structure of the occlusion device can refer to the description in embodiment 4, and is not limited herein.
It will be appreciated by those skilled in the art that the invention can be embodied in many other specific forms without departing from the spirit or scope thereof. Although embodiments of the present invention have been described, it is to be understood that the present invention should not be limited to those precise embodiments, and that various changes and modifications can be effected therein by one skilled in the art without departing from the scope or spirit of the invention as defined by the appended claims.
Claims (11)
1. An occlusion device comprising a first occlusion member and a second occlusion member disposed in opposition;
the first plugging piece comprises a deformable first clamping part, and a first connecting part is arranged on one side, facing the second plugging piece, of the first clamping part; the second plugging piece comprises a deformable second clamping part, and a second connecting part is arranged on one side, facing the first plugging piece, of the second clamping part; in the opposite direction of the first blocking piece and the second blocking piece, the size of the first connecting part is larger than that of the first clamping part, and the size of the second connecting part is larger than that of the second clamping part;
the first connecting portion and the second connecting portion are connected and located in a defect gap to be plugged, and the first clamping portion and the second clamping portion are clamped on the wall surface around the gap.
2. The occlusion device of claim 1, wherein the first clamping portion is centrally symmetric about the first connection portion and the second clamping portion is centrally symmetric about the second connection portion.
3. The occlusion device of claim 1 or 2, wherein the first clamping portion is curved toward the second occlusion member, and the second clamping portion is curved toward the first occlusion member.
4. The occlusion device of claim 3, wherein the first clamping portion and the second clamping portion are not curved in the same arc.
5. The occlusion device of claim 3, wherein the first and second clamping portions are umbrella-shaped or petal-shaped.
6. The occlusion device of claim 5, wherein the first clamp portion includes a plurality of first leaflets disposed circumferentially about the first connection portion, and the second clamp portion includes a plurality of second leaflets disposed circumferentially about the second connection portion.
7. The occlusion device of claim 6, wherein the first and second leaflets are annular and are disposed in interdigitation with each other adjacent the first leaflet and with each other adjacent the second leaflet.
8. The occlusion device of claim 6, wherein the first and second leaflets are strip-shaped.
9. The occlusion device of claim 6, 7, or 8, wherein the first leaflet is disposed crosswise to the second leaflet after the first connection portion is connected to the second connection portion.
10. The occlusion device of claim 1, wherein the occlusion device is made of a degradable material.
11. The occlusion device of claim 1, wherein the first and second occluding members are of a double-layer hollow structure or a single-layer solid structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021962596.0U CN212394977U (en) | 2020-09-09 | 2020-09-09 | Plugging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021962596.0U CN212394977U (en) | 2020-09-09 | 2020-09-09 | Plugging device |
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| Publication Number | Publication Date |
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| CN212394977U true CN212394977U (en) | 2021-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021962596.0U Active CN212394977U (en) | 2020-09-09 | 2020-09-09 | Plugging device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114224402A (en) * | 2020-09-09 | 2022-03-25 | 江苏朴芃医疗科技有限公司 | Plugging device |
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2020
- 2020-09-09 CN CN202021962596.0U patent/CN212394977U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114224402A (en) * | 2020-09-09 | 2022-03-25 | 江苏朴芃医疗科技有限公司 | Plugging device |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210610 Address after: 201702 2nd floor, 158 Shuanglian Road, Qingpu District, Shanghai Patentee after: Shanghai Lingwen Medical Technology Co.,Ltd. Address before: Floors 4, 5 and 6, No. 3, Lane 1473, Zhenguang Road, Putuo District, Shanghai, 200063 Patentee before: Shanghai Paifu Medical Technology Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211105 Address after: 226499 No. 888 Zhujiang Road, juegang street, Rudong County, Nantong City, Jiangsu Province Patentee after: Jiangsu pupeng Medical Technology Co.,Ltd. Address before: 201702 2nd floor, 158 Shuanglian Road, Qingpu District, Shanghai Patentee before: Shanghai Lingwen Medical Technology Co.,Ltd. |