Devices and methods for guiding a surgical instrument

Abstract

Devices for guiding an instrument into a body of a patient, at a targeted point of entry and along an insertion path at a targeted insertion angle, are described herein, such as a guide for an accessneedle in a PCNL procedure for accessing the kidney to remove kidney stones, the devices comprising a base component, a guide assembly, and optionally an insertion mechanism. The base component is aligned in use with the point of entry and the guide assembly cooperates with the base component to allow for the instrument to be aligned and fixed at any circumferential angle around an axis perpendicular to the point of entry and at any vertical angle ranging from 0 to 45 degrees away from the axis in a direction toward the body. The optional mechanism allows for mechanical insertion once the instrument is aligned and fixed. Devices and methods disclosed herein allow a medical professional to accurately and stably guide an instrument at a targeted point and angle and to a desired depth, whileminimizing the exposure to radiation in the surgical field that is used to image the insertion path.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Provisional Application Serial No. 62 / 276,569, filed January 8, 2016, the disclosure of which is incorporated herein by reference in its entirety. technical field [0003] The present disclosure relates generally to needle guides for guiding surgical instruments, particularly for percutaneous access to surgical sites, and more particularly, needle guides for facilitating access to the kidney as part of PCNL surgery for the treatment of kidney stones Apparatus and methods. Background technique [0004] Many medical procedures are performed from outside the patient's body through narrow insertion pathways to target areas in the body in order to diagnose and / or treat various diseases and conditions. These procedures may be minimally invasive. Percutaneous puncture is a common procedure in this type of surgery. To create an insertion path from the percutaneous access point to the t...

AI Technical Summary

Problems solved by technology

Not only can this lead to an offset in the insertion angle, which can affect the accuracy of the intended insertion path, but standard imaging fluoroscopy can cause significant surgical radiation exposure to the patient and surgical team

The amount of fluoroscopy required to gain access to the instrument can be substantial, and over time, the multiple procedures performed can result in substantial radiation exposure approaching or exceeding the recommended annual occupational radiation exposure

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