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Epidural scar preventing absorbable isolationcapsule

An epidural and scar technology, applied in medical science, prosthetics, surgery, etc., can solve the problems of not being able to effectively prevent the formation of hematoma and scar hyperplasia

Active Publication Date: 2008-08-27
HAIAN CHANGDA TECH TRANSFER CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Spine surgeons and neurosurgeons have done a lot of research and attempts to prevent laminectomy dural scar tissue adhesion. Anti-adhesion materials emerge in endlessly, but none of them can effectively prevent the formation of hematoma and scar hyperplasia.

Method used

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  • Epidural scar preventing absorbable isolationcapsule
  • Epidural scar preventing absorbable isolationcapsule
  • Epidural scar preventing absorbable isolationcapsule

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] An absorbable septum for preventing epidural scars, comprising: a septum body 1, a capsule cavity 2 is provided in the septum body 1, and a liquid human body absorbable material 3 is filled in the capsule cavity 2, the septum capsule body 1 is a biodegradable compartment, on which a fixed ear 4 is arranged. In this embodiment, the shape of the compartment 1 filled with the liquid absorbable material 3 is slightly thinner from the middle to the edge; the compartment 1 filled with the liquid absorbable material 3 is butterfly-shaped. The liquid body absorbable material 3 can be sodium hyaluronate, and the biodegradable spacer is polycaprolactone / polylactic acid spacer.

[0016] Further, the absorbable septum capsule for preventing epidural scars of the present invention is a dish-shaped capsule structure, as attached Figure 1~3 . The septum is thick in the central area and slightly thinner towards the periphery. There are fixed ears 4 and fixed holes 5 available for f...

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PUM

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Abstract

The invention discloses an absorbable sac for preventing epidural scar formation, comprising a biodegradable sac body provided thereon with a cavity filled with an absorbable liquid material and provided thereon with fixing members. The sac body filled with the absorbable liquid material is gradually thinned from the middle to the end, and during the process, the spilled absorbable liquid material (sodium hyaluronate) from the sac can keep the action of preventing and reducing epidural scar formation for a while. Finally, all the components in the sac are degraded into water and carbon dioxide. After the absorbable liquid material is absorbed, the vertebral plate deficient region is replaced by loose tissue, so as to prevent tight adhesion between dural sac and musculus sacrospinalis and prevent a large amount of hyperplastic scar tissue pressing dural sac to induce symptom recurrence.

Description

technical field [0001] The invention relates to a device for preventing postoperative epidural scars in the human spine lamina defect area during surgery, in particular to an absorbable septum for preventing epidural scars. Background technique [0002] In 1934, Mixter and Barr first introduced the early laminectomy for the treatment of traumatic and degenerative disc herniation. Later, this operation method was widely used in the treatment of spinal stenosis, intervertebral disc herniation, spinal canal tumor and spinal trauma, and became one of the most commonly used surgical approaches in spinal surgery to obtain thorough decompression and good The surgical field is revealed. However, some patients often suffer from persistent and recurrent low back pain or other uncomfortable symptoms after surgery, which is clinically called Failedback surgery syndrome (FBSS), with an incidence rate of 10% to 15%. There are many reasons, but the main reason is the epidural scar adhesi...

Claims

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Application Information

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IPC IPC(8): A61B17/56A61F2/44A61L31/14A61L27/58
Inventor 庄苏阳
Owner HAIAN CHANGDA TECH TRANSFER CENT
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