US 12,274,811 B2Granted

Dural repair device and method of use

AssigneeUniversity of Maryland, Baltimore

InventorsCharles Sansur, Steven C. Ludwig

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Abstract

Dural repair devices that are configured to effectively and reliably repair the damage of a dural tear due to incidental durotomies are provided, along with methods of use. The devices and methods enhance the ability of a surgeon to repair a patent's dura mater, or dura, during surgery of the central nervous system. The dural repair device has a multi-layer structure configured to exert a pressure or tamponade effect to compress a patient's dura to its state prior to the spinal surgery. Thus, the dural repair devices and methods of use may reduce the patient's risk morbidity, further surgery, spinal headaches, or other injuries and discomforts.

Claims13

Dependent claims

Method of sealing a treatment site for a dural repair, comprising:

providing a dual layer, multi-composite plate having a top layer and an attached bottom layer, the top layer comprising a rigid and formable resorbable thermoplastic material, the bottom layer comprising a compressible material softer than the thermoplastic material of the top layer, the plate being moldable under heat treatment and being configured to provide a water-tight seal over a treatment site, wherein the plate includes a valvular pore for insertion of a needle therethrough, the valvular pore being configured to provide one-way fluid flow;
forming a sealing device over the treatment site from the multi-composite plate;
and
securing the formed sealing device to the treatment site.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 18/205,099Filed 2 Jun 2023 · division
Priority: 12 Sep 2017
Published: US 2023/0310168 A15 Oct 2023
Granted: 15 Apr 2025
Term ends: Not estimatedThe source records don’t support an estimate.

Classification24 codes

A61L 27/3675
Characterised by the site of application in the body: nerve tissue, e.g. brain, spinal cord, nerves, dura mater
A61B 17/8028
Cortical plates , i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates:…
A61F 2/0063
Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting…:…
A61F 2/442
For the spine, e.g. vertebrae or spinal discs: intervertebral or spinal discs, e.g. resilient

Family

Application62/557,384Us provisional application · filed 12 Sep 2017
PCT/US2018/050730Parent of this division · filed 12 Sep 2018
US 2023/0310168 A1Pre-grant publication · published 5 Oct 2023
Application16/646,329Parent of this division
US 11,672,672 B2Parent of this division
US 2020/0268522 A1Published application
US 12,274,811 B2This patent

From the US filing history. Foreign family members aren’t listed.

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