CN210811770U - Absorbable plastic barrier for implants - Google Patents
Absorbable plastic barrier for implants Download PDFInfo
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- CN210811770U CN210811770U CN201921148696.7U CN201921148696U CN210811770U CN 210811770 U CN210811770 U CN 210811770U CN 201921148696 U CN201921148696 U CN 201921148696U CN 210811770 U CN210811770 U CN 210811770U
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- holes
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- implant
- hole
- absorbable plastic
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- 230000004888 barrier function Effects 0.000 title claims abstract description 31
- 239000007943 implant Substances 0.000 title claims abstract description 30
- 229920003023 plastic Polymers 0.000 title claims abstract description 29
- 239000004033 plastic Substances 0.000 title claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 14
- 229920000747 poly(lactic acid) Polymers 0.000 claims description 7
- 239000004626 polylactic acid Substances 0.000 claims description 7
- 229940117828 polylactic acid-polyglycolic acid copolymer Drugs 0.000 claims description 3
- 239000012982 microporous membrane Substances 0.000 claims 1
- 210000000988 bone and bone Anatomy 0.000 abstract description 36
- 230000001681 protective effect Effects 0.000 abstract description 6
- 238000010521 absorption reaction Methods 0.000 abstract description 5
- 239000012528 membrane Substances 0.000 description 9
- 210000002950 fibroblast Anatomy 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 210000004027 cell Anatomy 0.000 description 3
- 235000015097 nutrients Nutrition 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000012010 growth Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 210000000963 osteoblast Anatomy 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 210000001519 tissue Anatomy 0.000 description 2
- PJRSUKFWFKUDTH-JWDJOUOUSA-N (2s)-6-amino-2-[[2-[[(2s)-2-[[(2s,3s)-2-[[(2s)-2-[[2-[[(2s)-2-[[(2s)-6-amino-2-[[(2s)-2-[[(2s)-2-[[(2s)-2-[(2-aminoacetyl)amino]-4-methylsulfanylbutanoyl]amino]propanoyl]amino]-3-hydroxypropanoyl]amino]hexanoyl]amino]propanoyl]amino]acetyl]amino]propanoyl Chemical compound CSCC[C@H](NC(=O)CN)C(=O)N[C@@H](C)C(=O)N[C@@H](CO)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](C)C(=O)NCC(=O)N[C@@H](C)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](C)C(=O)NCC(=O)N[C@@H](CCCCN)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](C)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](C)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](C)C(=O)N[C@@H](CC(C)C)C(N)=O PJRSUKFWFKUDTH-JWDJOUOUSA-N 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 229920001244 Poly(D,L-lactide) Polymers 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 206010052428 Wound Diseases 0.000 description 1
- 239000012620 biological material Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000010478 bone regeneration Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 108010021753 peptide-Gly-Leu-amide Proteins 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000017423 tissue regeneration Effects 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
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- Prostheses (AREA)
- Materials For Medical Uses (AREA)
Abstract
The utility model discloses an absorbable plastic barrier for implant, which comprises a supporting layer and a microporous layer which are arranged from top to bottom in sequence, wherein the supporting layer is tightly connected with the microporous layer, a plurality of first through holes are arranged on the supporting layer, a plurality of second through holes are arranged on the microporous layer, the aperture of the first through hole is 2mm-5mm, and the aperture of the second through hole is 0.1 μm-500 μm; the support layer and the microporous layer are both made of biodegradable materials. The utility model discloses an absorbable plastic protective screen for implant has improved the bone increment in the vertical direction when guaranteeing degradable absorption.
Description
Technical Field
The utility model relates to a medical treatment auxiliary machinery technical field especially relates to an absorbable plasticity protective screen for implant.
Background
The guided bone regeneration is an operation method which uses a surgical method to place a barrier to separate different tissues and prevent fibroblasts from growing into bone wounds, so that osteoblasts at the bone surface can grow automatically, and the purposes of tissue regeneration and directional repair are achieved. Tissue cells in a human body are various in types, and in order to ensure the growth of osteoblasts in a bone grafting area and reduce or prevent other cells such as fibroblasts from growing into the bone grafting area, a barrier needs to be established around the bone grafting area. The ideal bone grafting barrier should have good biocompatibility, certain physical strength, capacity of allowing nutrients to enter the bone grafting area, capacity of blocking fibroblasts from entering the bone grafting area, capacity of degrading inside body, convenient and reliable fixation and other performance.
Currently, clinically, such barriers are mainly made of membranes made of biological materials and membranes made of metal materials. The biological membrane has the advantages that the performance of preventing the growth of unexpected cells is outstanding, the membrane can be absorbed at a reduced price in a human body, but the membrane lacks physical strength, can not improve the bone grafting increment in the vertical direction, and has potential immune risk due to the fact that the membrane is from an animal source; the barrier membrane prepared from metal can improve the bone increment in the vertical direction, but because the metal barrier membrane can not be degraded and absorbed by human bodies, a patient receiving bone grafting needs to perform a second operation to take out the titanium membrane, the operation period is long, the steps are complicated, and the risk that the patient is subjected to secondary injury exists.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an absorbable plastic barrier for implant to solve the problem that above-mentioned prior art exists, improve the bone increment in the vertical direction when guaranteeing degradable absorption.
In order to achieve the above object, the utility model provides a following scheme:
the utility model provides an absorbable plastic barrier for implant, which comprises a supporting layer and a microporous layer which are arranged from top to bottom in sequence, wherein the supporting layer is tightly connected with the microporous layer, the supporting layer is provided with a plurality of first through holes, the microporous layer is provided with a plurality of second through holes, the aperture of the first through hole is 2mm-5mm, and the aperture of the second through hole is 0.1 μm-500 μm; the support layer and the microporous layer are both made of biodegradable materials.
Preferably, the support layer is integrally formed with the microporous layer.
Preferably, a plurality of the first through holes are uniformly distributed on the supporting layer, and the pitch between two adjacent first through holes is 1mm-20 mm.
Preferably, a plurality of the second through holes are uniformly distributed on the microporous layer, and the pitch between two adjacent second through holes is 10 μm to 100 μm.
Preferably, the support layer has a thickness of 0.8mm to 0.9mm, and the microporous layer has a thickness of 10 μm to 0.8 mm.
Preferably, the first through hole is an elliptical hole, a square hole, a circular hole or a polygonal hole, and the second through hole is an elliptical hole, a square hole, a circular hole or a polygonal hole.
Preferably, the first through-hole has a hole depth direction parallel to the thickness direction of the support layer, and the second through-hole has a hole depth direction parallel to the hole depth direction of the microporous layer.
Preferably, the material of the support layer and the microporous layer is polylactic acid-polyglycolic acid copolymer, racemic polylactic acid or levorotatory polylactic acid.
The utility model discloses an absorbable plastic protective screen for implant has gained following technological effect for prior art:
the utility model discloses an absorbable plastic protective screen for implant has improved the bone increment in the vertical direction when guaranteeing degradable absorption. The utility model discloses an absorbable plastic protective screen for implant has reached and has had good biocompatibility, has certain physical strength, allows nutrient substance to get into the technical effect that the bone grafting district, separation fibroblast etc. got into the ideal such as bone grafting district, can degrade in vivo through asymmetric mesh design.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic cross-sectional view of an absorbable plastic barrier for an implant according to the present invention;
wherein: 1-support layer, 2-first through hole, 3-microporous layer, 4-second through hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The utility model aims at providing an absorbable plastic barrier for implant to solve the problem that above-mentioned prior art exists, improve the bone increment in the vertical direction when guaranteeing degradable absorption.
The utility model provides an absorbable plastic barrier for implant, which comprises a supporting layer and a microporous layer which are arranged from top to bottom in sequence, wherein the supporting layer is tightly connected with the microporous layer, the supporting layer is provided with a plurality of first through holes, the microporous layer is provided with a plurality of second through holes, the aperture of the first through hole is 2mm-5mm, and the aperture of the second through hole is 0.1 μm-500 μm; the support layer and the microporous layer are both made of biodegradable materials.
The utility model discloses an absorbable plastic protective screen for implant has improved the bone increment in the vertical direction when guaranteeing degradable absorption.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
As shown in fig. 1: the absorbable plastic barrier for the implant comprises a support layer 1 and a microporous layer 3 which are sequentially arranged from top to bottom, wherein the support layer 1 is tightly connected with the microporous layer 3, the support layer 1 is provided with a plurality of first through holes 2, the microporous layer 3 is provided with a plurality of second through holes 4, the support layer 1 and the microporous layer 3 are both made of biodegradable materials, in the embodiment, the support layer 1 and the microporous layer 3 are made of polylactic acid-polyglycolic acid copolymer (PGLA), racemic polylactic acid (PDLLA) or levorotatory polylactic acid (PLLA), and the biodegradable materials used for the support layer 1 and the microporous layer 3 can be properly selected according to needs in practical application.
The support layer 1 and the microporous layer 3 in the absorbable plastic barrier for the implant are integrally formed, a plurality of first through holes 2 are uniformly distributed on the support layer 1, the first through holes 2 are elliptical holes, the aperture of each first through hole 2 is 2-5 mm, and the hole distance between every two adjacent first through holes 2 is 1-20 mm; a plurality of second through holes 4 are uniformly distributed on the microporous layer 3, the second through holes 4 are circular holes, the aperture of each second through hole 4 is 0.1-500 mu m, and the pitch between every two adjacent second through holes 4 is 10-100 mu m; the thickness of the support layer 1 is 0.8mm-0.9mm, and the thickness of the microporous layer 3 is 10 μm-0.8 mm. The depth direction of the first through holes 2 is parallel to the thickness direction of the support layer 1, and the depth direction of the second through holes 4 is parallel to the depth direction of the microporous layer 3.
The method of use of the absorbable plastic barrier for an implant of this embodiment is as follows:
before implanting bone material, the absorbable plastic barrier for the implant of the embodiment is placed in a bone grafting area and connected with the residual end after bone defect, so that the second through hole 4 is close to the bone grafting area, one side of the first through hole 2 is exposed outside, after the bone defect stump is punched, the absorbable rivet is inserted into the bone through the first through hole 2 (the part of the microporous layer 3 opposite to the first through hole 2 which is expected to be inserted into the absorbable rivet is punched in advance, the absorbable plastic barrier for the implant after being fixed forms a space with the residual bone, bone material is implanted in the space, after the bone material is implanted, nutrient substances can enter the bone grafting area through the second through hole 4, whereas fibroblasts are not easily accessible and are blocked outside the second through holes 4, it takes about 6 months for the implanted bone material to survive, after 6 months the absorbable plastic barrier for the implant gradually degrades.
The absorbable plastic barrier for an implant of the present embodiment is absorbable, avoiding secondary surgery. The layered structure of the support layer 1 and the microporous layer 3 is adopted, so that the physical strength of the bone grafting device is ensured, the bone grafting technology can be greatly improved in the vertical and horizontal directions, and the operation is convenient and rapid. Compared with the bone grafting technology which is used for implanting bone materials firstly and then covering the surface of the bone materials with barrier films in clinical use at present, the absorbable plastic barrier for the implant is characterized in that a stable space is prefabricated in a bone grafting area in advance, and then the bone materials are filled into the stable space.
In the description of the present invention, it should be noted that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (8)
1. An absorbable plastic barrier for an implant, characterized by: the microporous membrane comprises a supporting layer and a microporous layer which are sequentially arranged from top to bottom, wherein the supporting layer is tightly connected with the microporous layer, a plurality of first through holes are formed in the supporting layer, a plurality of second through holes are formed in the microporous layer, the aperture of each first through hole is 2-5 mm, and the aperture of each second through hole is 0.1-500 mu m; the support layer and the microporous layer are both made of biodegradable materials.
2. The absorbable plastic barrier for use in an implant of claim 1, wherein: the support layer is integrally formed with the microporous layer.
3. The absorbable plastic barrier for use in an implant of claim 1, wherein: the first through holes are uniformly distributed on the supporting layer, and the pitch between every two adjacent first through holes is 1-20 mm.
4. The absorbable plastic barrier for use in an implant of claim 1, wherein: and a plurality of second through holes are uniformly distributed on the microporous layer, and the pitch between every two adjacent second through holes is 10-100 μm.
5. The absorbable plastic barrier for use in an implant of claim 1, wherein: the thickness of the support layer is 0.8mm-0.9mm, and the thickness of the microporous layer is 10 μm-0.8 mm.
6. The absorbable plastic barrier for use in an implant of claim 1, wherein: the first through holes are elliptical holes, square holes, circular holes or polygonal holes, and the second through holes are elliptical holes, square holes, circular holes or polygonal holes.
7. The absorbable plastic barrier for use in an implant of claim 1, wherein: the hole depth direction of the first through hole is parallel to the thickness direction of the support layer, and the hole depth direction of the second through hole is parallel to the hole depth direction of the microporous layer.
8. The absorbable plastic barrier for use in an implant of claim 1, wherein: the support layer and the microporous layer are made of polylactic acid-polyglycolic acid copolymer, racemic polylactic acid or levorotatory polylactic acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921148696.7U CN210811770U (en) | 2019-07-19 | 2019-07-19 | Absorbable plastic barrier for implants |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921148696.7U CN210811770U (en) | 2019-07-19 | 2019-07-19 | Absorbable plastic barrier for implants |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210811770U true CN210811770U (en) | 2020-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921148696.7U Active CN210811770U (en) | 2019-07-19 | 2019-07-19 | Absorbable plastic barrier for implants |
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| Country | Link |
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| CN (1) | CN210811770U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112472332A (en) * | 2020-11-25 | 2021-03-12 | 广州市弘健生物医用制品科技有限公司 | Plate-shaped bracket for reinforcing bone surface |
| CN113813063A (en) * | 2020-11-25 | 2021-12-21 | 广州市弘健生物医用制品科技有限公司 | A supporting structure for atrophy alveolar bone is restoreed |
-
2019
- 2019-07-19 CN CN201921148696.7U patent/CN210811770U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112472332A (en) * | 2020-11-25 | 2021-03-12 | 广州市弘健生物医用制品科技有限公司 | Plate-shaped bracket for reinforcing bone surface |
| CN113813063A (en) * | 2020-11-25 | 2021-12-21 | 广州市弘健生物医用制品科技有限公司 | A supporting structure for atrophy alveolar bone is restoreed |
| CN113813065A (en) * | 2020-11-25 | 2021-12-21 | 广州市弘健生物医用制品科技有限公司 | Plate-shaped bracket for strengthening bone surface or bone surface to be repaired |
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