articulating needle

A hinged and needle bar technology, applied in the field of hinged needles, can solve problems such as difficulty in inserting surgical instruments

Active Publication Date: 2021-05-11
SMITH & NEPHEW PLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Insertion of surgical instruments can be difficult due to the complex nature of the knee joint, and the various locations on the curved meniscal tissue that may require access

Method used

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  • articulating needle
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Examples

Experimental program
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Embodiment Construction

[0018] The configurations disclosed below include an articulating needle device comprising: a hinged portion of the needle and a control mechanism for selectively articulating (bending) the hinged portion. The needle adopts a cannulated (hollow) rod for passing through the actuator and pull strap. The actuator generally occupies a central region defining an axis through the interior of the cannula, and the pull strap is defined by a thin strip along the interior side closest to the serrations in the hollow rod.

[0019] The needle tip assembly is attached at the distal end of the rod and is attached (welded) to the drawstring strip. The opposite end of the pull strap is likewise welded to a lead screw at the proximal end of the tube. When rotated, the threads in the lead screw pull the strap, applying a pull on the needle tip along the serrated (cut) side of the rod, and drawing the serrated sections together to articulate the needle.

[0020] In the exemplary configuration ...

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Abstract

Arthroscopic needles having a partially cut or serrated portion along one side of the circular hollow needle shaft allow the needle to bend or articulate by pulling on a pull strap running along the edge of the serrated portion closest to the hollow shaft. A thin strip of inner side is defined for compression along the cut to draw the uncut section into a closer arrangement for bending the needle in the direction of the compressed side. A selectively articulating needle or "bendable" needle that bends in response to rotation of the knob provides for insertion of the surgical attachment anchor in hard-to-reach areas of the meniscus tissue. The disclosed articulated needle has the ability to bend and access a more anterior and posterior meniscus repair zone than conventional rigid needle approaches.

Description

[0001] Cross References to Related Applications [0002] The subject application claims priority to U.S. Provisional Patent Application Serial No. 62 / 111,798, filed February 4, 2015, entitled "ARTICULATING NEEDLE," the entire contents of which are incorporated herein by reference. Background technique [0003] Arthroscopic knee procedures are often used to repair a tear or damage to the meniscus in humans using a suture attachment to the meniscus tissue. Insertion of surgical instruments can be difficult due to the complex nature of the knee joint, and the various locations on the curved meniscal tissue that may require access. Meniscal tissue is more solid than epidermal (skin) tissue and requires significant force to pierce the meniscal tissue, often used to insert suture anchors or "T" pieces because when the suture extends from the middle of the rigid cross-member The "T" shape appears when the "T" shape is aptly named. The surgeon must often navigate around anatomical ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/06
CPCA61B17/0401A61B17/06066A61B17/06109A61B2017/0464A61B2017/0419A61B2017/0414A61B2017/0409A61B2017/061A61B2017/0608A61B2017/00309
Inventor B.J.布尔克D.J.卡拉汉
Owner SMITH & NEPHEW PLC
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