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Dural repair device

A dura mater and equipment technology, applied in the field of dura mater repair equipment, can solve the problem of destroying the intention of minimally invasive surgery

Pending Publication Date: 2020-08-11
约翰雅克曼
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This defeats the purpose of minimally invasive surgery

Method used

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  • Dural repair device
  • Dural repair device
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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0040] Example 1: Device mount. In a particular embodiment, the complete device 1 is pre-installed with Type suture 16 and needle 15. When the handle is squeezed, the needle 15 meets the platform 10 , or the needle 15 can be free and then moved by separate forceps or captured by the catch of the inner arm 6 . At least a portion of the inner arm 7 slides under the edge of the dura mater 17 to push the rootlet 21 and has a groove that mates with and captures or holds the needle 15 . Squeeze the handles and bring the two upper arms 4 and 5 together. During the repair, the needle 15 is protected and the rootlet 21 cannot be caught by the needle 15 and / or a portion of the suture 16 .

[0041] Sutures used in the methods and devices as described herein may comprise one or a combination of one or more of monofilament, multifilament synthetic, biological, absorbable and / or non-bioabsorbable sutures. Non-limiting examples of monofilament sutures include and / or II Polydioxano...

example 2

[0043] Example 2: The dura is partially torn, but CSF does not leak from the spinal canal. Small roots float and are next to the repair site. If the cerebrospinal fluid is drained, the rootlet will sink and the repair will be easier, but the methods presented here can be used to repair the original partial tear rather than complete the tear and then repair the tear. The methods provided herein allow for the repair of tears where the cerebrospinal fluid is not drained during the repair process. At least a portion of the inner arm 6, such as the platform 10, can be used to safely push the nerve, rootlet, or portion of the spinal cord away from the device so that even when the nerve, rootlet, or portion of the spinal cord is floating in the cerebrospinal fluid, the suture 15 Or the needle 16 will not touch or otherwise damage them.

[0044] this is in Figure 5 shown in Figure 5 The dura mater 17, tear opening 18, rootlet 21 and space containing cerebrospinal fluid 22 are sh...

example 3

[0046] Example 3: Repairing the dura creates a tear at the edge of the anatomy where the needle snags a rootlet when moved with too much force. The methods described herein may be used when the torn dura mater includes a tear on the bony sidewall of the spinal canal. this is in Figure 9 As shown in , the tear opening 18 of the dura mater 17, the rootlet 21, the space containing the cerebrospinal fluid 22, and the bony side wall 23 of the spinal canal are shown. With current techniques, there is a risk of injury due to forceful movement of the needle that can snag small roots. In the presently outlined embodiments, the rootlets will be preserved and in some cases no cerebrospinal fluid drainage will be required. It is contemplated that during the repair described herein, drainage of CSF or removal of small amounts of CSF may be performed, but other embodiments are contemplated that do not require fluid removal; than, less fluid removal will be required. When repairing the ...

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Abstract

A dural repair device operable with a single hand. The device comprises a handle and an outer arm having an end opening and a mechanism for holding a needle within the outer arm. The device also comprises an inner arm including a heel, a platform, an end opening, and a mechanism for catching a needle. The handle is activatable such that the inner and outer arms couple, the needle is caught by themechanism for catching a needle within the inner arm, and when the inner and outer arms are uncoupled, the needle is transferred from the outer arm to the inner arm.

Description

technical field [0001] The present invention relates to devices and methods for dura mater repair. More specifically, the present invention relates to a one-handed dural repair device in which by activating a handle, the arm of the device can be moved to divert the needle during suturing of a dural tear in order to proceed without nerve damage. repair. Background technique [0002] In the United States, the number and complexity of spine surgeries is increasing. The dynamics and trends enabling surgical procedures to achieve low morbidity and short healing times are becoming more common and are collectively referred to as minimally invasive procedures. [0003] Spinal surgery usually involves working around the spinal cord and nerves contained in spinal fluid. The spinal fluid is held in place by a tissue called the dura mater, which creates a dural sac in which the tissue "floats." An injury may cause a tear in the dura mater. [0004] Repair of these injuries is usual...

Claims

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Application Information

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IPC IPC(8): A61B17/04
CPCA61B17/062A61B2017/00477A61B2017/00876A61B2017/00867A61B2017/0474
Inventor 约翰·雅克曼
Owner 约翰雅克曼
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