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Amniotic lacrimal duct repair stent and manufacturing method thereof

A manufacturing method and technology of film lacrimal duct, applied in the field of biomedicine, can solve the problems of lacrimal duct tissue damage, lack of repair, secondary damage, etc., achieve low recurrence rate, convenient transportation, and prevent scar formation

Active Publication Date: 2019-10-18
JIANGXI RUIJI BIOTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The implantation of the silicone tube stent can support the stoma, and at the same time drain the blood and secretions in the lacrimal sac, reduce inflammation, and accelerate wound healing. Damage to the lacrimal duct tissue, and even secondary blockage of the lacrimal duct due to adhesion with the lacrimal duct
[0007] The Chinese patent application number 200720005808.4 discloses a probing and drainage tube for the lacrimal duct. This design enables the product to support the lacrimal duct and also has the functions of washing and administering drugs, but the product itself does not have the function of repairing. function, and the tube body needs to be pulled out, which is easy to cause secondary damage

Method used

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  • Amniotic lacrimal duct repair stent and manufacturing method thereof
  • Amniotic lacrimal duct repair stent and manufacturing method thereof
  • Amniotic lacrimal duct repair stent and manufacturing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Such as figure 1 As shown, the present invention provides a stent for repairing the amniotic membrane lacrimal duct, comprising an amniotic stent body 1 made of amnion treated by freeze-drying, and a medical suture 2 respectively connected to two ends of the amniotic stent body 1. The distance between the suture nodes and the top of the amniotic membrane is 3mm±1mm, the length of the amniotic membrane support body 1 between the two suture nodes is slightly longer than the length of the medical suture 2 between the two suture nodes, and the amniotic membrane support during traction The main body 1 is not stressed, so as to play a protective role and avoid breaking or breaking the amniotic membrane stent main body 1; The body 1 has a constant diameter along its length.

[0034] The manufacturing method of the above-mentioned amniotic lacrimal duct repair stent is as follows, including the following steps:

[0035] 1) Amniotic membrane sampling and cleaning: Amniotic me...

Embodiment 2

[0042] Such as figure 1 As shown, the present invention provides a stent for repairing the amniotic membrane lacrimal duct, comprising an amniotic stent body 1 made of amnion treated by freeze-drying, and a medical suture 2 respectively connected to two ends of the amniotic stent body 1. The distance between the suture nodes and the top of the amniotic membrane is 4mm±1mm, the length of the amniotic stent body 1 between the two suture nodes is slightly longer than the length of the medical suture 2 between the two suture nodes, and the amniotic stent is stretched during traction. The main body 1 is not stressed, so as to play a protective role and avoid breaking or breaking the amniotic membrane stent main body 1; The body 1 has a constant diameter along its length.

[0043] The manufacturing method of the above-mentioned amniotic lacrimal duct repair stent is as follows, including the following steps:

[0044] 1) Amniotic membrane sampling and cleaning: Amniotic membrane s...

Embodiment 3

[0051] Such as figure 1 As shown, the present invention provides a stent for repairing the amniotic membrane lacrimal duct, comprising an amniotic stent body 1 made of amnion treated by freeze-drying, and a medical suture 2 respectively connected to two ends of the amniotic stent body 1. The distance between the suture nodes and the top of the amniotic membrane is 1 mm, and the length of the amniotic membrane support body 1 between the two suture nodes is slightly greater than the length of the medical suture 2 between the two suture nodes. During the traction process, the amniotic membrane support body 1 No force, so as to play a protective role, avoiding the amniotic membrane stent body 1 from being broken or damaged; Has a constant diameter along its length.

[0052] The manufacturing method of the above-mentioned amniotic lacrimal duct repair stent is as follows, including the following steps:

[0053] 1) Amniotic membrane sampling and cleaning: Amniotic membrane sampli...

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Abstract

The invention provides an amniotic-membrane lacrimal passage repair support which comprises an amniotic-membrane support body made from an amniotic membrane subjected to freeze drying treatment and amedical suture connected to two ends of the amniotic-membrane support body. The length of the amniotic-membrane support body between two suture nodes is slightly larger than the length of the medicalsuture between the two ends of the amniotic-membrane support body. During traction of the amniotic-membrane lacrimal passage repair support, the amniotic-membrane support body is not stressed, it is ensured that the amniotic-membrane lacrimal passage repair support does not break in the lacrimal passage, easily adapts to a zigzag structure of the lacrimal passage, secondary blockage caused by thefact that pulling friction causes damage and adhesion of the lacrimal passage tissues, and meanwhile the amniotic-membrane support body has the very good treating effect on lesion tissues, is conductive to restoration of the epithelium structure and functions of the lacrimal passage, prevents scar formation and is high in efficiency, good in long-term effect and low in relapse rate. The amniotic-membrane support body can be degraded after being implanted without reoperation for removal, can be stored at normal temperature for a long time, is convenient to transport and can meet the clinic demand at any time.

Description

technical field [0001] The invention relates to the technical field of biomedicine, in particular to an amniotic lacrimal duct repair bracket and a manufacturing method thereof. Background technique [0002] Lacrimal duct obstruction diseases (LDOD) refer to a group of diseases caused by various reasons, with lacrimal duct obstruction as the pathological feature and epiphora as the main clinical manifestation. It is a common and frequently-occurring disease in ophthalmology. Cystic anastomosis and probing of the punctum lacrimal duct. innocent sparse If there is no support to keep the lacrimal duct cavity expanded after lacrimal duct laser and high-frequency electrotherapy, the postoperative wound surface is not completely healed due to reactive edema or original chronic inflammation, and the lacrimal duct lumen is easily closed and the cavity wall is adhered. , and then tissue repair wound adhesion, resulting in re-occlusion of the lacrimal duct lumen. In laser or in hig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/82A61F9/007A61L31/14
Inventor 滕志强彭崇军郭光明谢青华
Owner JIANGXI RUIJI BIOTECH CO LTD
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