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Reticular metal stent for wrapping amniotic membrane

A technology of metal stents and mesh stents, which is applied in the field of mesh metal stents wrapped in amniotic membranes and medical mesh metal stents, can solve the problems of blocking narrow medical equipment and appliances, human body lumens that have not yet been seen, and easy-to-collapse pipelines, etc., to achieve Reduction of inflammatory response, reduction of surgical cost, effect of clearing inflammatory cells

Pending Publication Date: 2019-03-19
高传友 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There are also studies that disclose the use of amniotic membrane as a new type of biomaterial to be applied to the treatment of ophthalmic diseases. For example, amniotic membrane is used to wrap absorbable materials as scaffolds, but both amnion and absorbable scaffolds decompose in a certain period of time. The wall has no supporting function, and it is easy to collapse and cause the pipeline to adhere again. It is clinically proven that 30-40% of patients fail to re-adhere
So far, there have been no reports on the use of amniotic membranes for the preparation of medical equipment for occlusion and stenosis of human lumens.

Method used

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  • Reticular metal stent for wrapping amniotic membrane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Prepare a mesh metal stent wrapped with amnion, the mesh metal stent wrapped with amnion is made into a cylindrical stent by a metal stent 1 and an envelope 2; the envelope 2 is wrapped on the outer peripheral surface of the metal stent 1;

[0033] In the mesh metal stent wrapped with amniotic membrane, the metal frame 1 is made of a metal material to make a columnar mesh stent; the total length of the columnar mesh stent is 2 mm, and the column diameter is 1 mm; the metal material is selected from Self-woven titanium alloy stent or titanium alloy carved stent;

[0034] The envelope 2 is prepared from amniotic membrane; the amniotic membrane is wrapped in 2-3 layers on the outer peripheral surface of the metal stent 1 to form the envelope 2; the two ends of the prepared envelope 2 are tied with surgical sutures as free leads , for easy surgical placement.

[0035] When in use, select a patient with applicable stenosis of the lumen, and use the mesh metal stent wrapped ...

Embodiment 2

[0037] Prepare a mesh metal stent wrapped with amnion, the mesh metal stent wrapped with amnion is made into a cylindrical stent by a metal stent 1 and an envelope 2; the envelope 2 is wrapped on the outer peripheral surface of the metal stent 1;

[0038] The mesh metal stent wrapped with amniotic membrane, the metal stent 1 is made of a metal material to make a cylindrical mesh stent; the metal material is selected from a titanium alloy braided stent or a titanium alloy carved stent;

[0039] The total length of the cylindrical mesh stent is 20mm, and the cylindrical diameter is 5mm; the envelope 2 of the mesh metal stent wrapped with amniotic membrane is prepared from amniotic membrane; the amniotic membrane is wrapped on the outer peripheral surface of the metal stent 1 2-3 layer to make a capsule 2; both ends of the prepared capsule 2 are tied with surgical sutures as free leads, which are convenient for surgical insertion.

[0040] When in use, the prepared cylindrical mesh...

Embodiment 3

[0042] Prepare a mesh metal stent wrapped with amnion, the mesh metal stent wrapped with amnion is made into a cylindrical stent by a metal stent 1 and an envelope 2; the envelope 2 is wrapped on the outer peripheral surface of the metal stent 1;

[0043] In the mesh metal stent wrapped with amniotic membrane, the metal stent 1 is made of a metal material to make a funnel-shaped mesh stent; the metal material is selected from a titanium alloy braided stent or a titanium alloy carved stent;

[0044] The funnel-shaped mesh stent has a total length of 1-20mm after being bounced, an upper bottom width of 6-8mm, and a lower bottom width of 4-6mm; the envelope 2 is prepared from amniotic membrane; the amniotic membrane is wrapped in a metal 2-3 layers are formed on the outer peripheral surface of the stent 1 to form a coating 2;

[0045] When in use, the prepared funnel-shaped mesh stent is used for patients with stenosis after gynecological cervical cancer surgery. The results show...

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Abstract

The invention belongs to the field of medical instruments, and relates to a reticular metal stent for wrapping an amniotic membrane. A cylindrical support comprises a metal stent and an envelope, theenvelope is wrapped on the peripheral surface of the metal stent, the metal stent is made into a tubular, circular, semicircular or funnel-shaped reticular stent, fresh or preserved amniotic membraneis wrapped on the peripheral surface of the metal stent, the reticular metal stent wrapped with the amniotic membrane can be used for smooth support in various lumens of a human body after operation,such as diseases of duct stenosis caused by operations of otorhinolaryngology, malignant tumors of the pancreatic and biliary system, and gynecological tumors, by expanding the reticular metal of thestent to support narrow and blocked lumens, the smooth rate reaches 95%, the amniotic membrane is wrapped on the outer layer of the stent, the absorption is easy, damage of tissues on the walls of thenarrow and blocked lumens cannot be caused, tissue cells in the wall can be protected, related surgical wounds can be effectively relieved, and the treatment effect of diseases is improved.

Description

technical field [0001] The invention belongs to the field of medical equipment, and relates to a medical mesh metal bracket, in particular to a mesh metal bracket wrapped with amniotic membrane. Background technique [0002] Clinical practice shows that at present, the method of lumen obstruction and stenosis in various human subjects that mainly adopts surgical treatment has defects such as large trauma, many complications, and high recurrence rate. For example, in the surgical treatment of dry eye, in the tear duct plug However, the emboli made of silica gel or absorbable materials have obvious defects. For example, the emboli will fall off after being inserted into the lacrimal duct, which will cause trouble in surgical removal, and the emboli When it is inserted into the lacrimal duct, it will damage the tissues in the canaliculus wall and block the lacrimal duct, which will further cause complications; at present, in the field of lacrimal duct in ophthalmology, only sil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/90
CPCA61F2/90A61F2210/0004A61F2240/001
Inventor 高传友高俊杰
Owner 高传友