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US 2025/0025211 A1Published application
Trocars and needles with illuminated guidance features and related methods
AssigneeThe Brigham and Women's Hospital, Inc.
InventorJon I. Einarsson
Life of this patent
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Abstract
The present disclosure provides devices and methods for insufflating abdomens of subjects under direct visualization. Such devices and methods, in some implementations, include features for cleaning the devices, and certain implementations of the methods permit procedures wherein it is not necessary to use a typical obturator to place a cannula, resulting in safer procedures.
Claims20
A method of assessing a subject, comprising:
- providing an outer assembly including a housing having a hollow distally extending needle extending distally therefrom, the hollow distally extending needle having a distal end and a proximal end, wherein the hollow distally extending needle forms a passageway to pass at least one of fluid and instruments therethrough;
- providing a visualization stylet assembly that is at least partially disposed within the passageway, the visualization stylet assembly being removably coupled to the outer assembly, the visualization stylet assembly including a visualization stylet and a sleeve, the sleeve being removably disposed about at least a distal region of the visualization stylet, the sleeve including a light transmissive portion disposed at a distal end thereof, at least a portion of the sleeve extending proximally through the hollow distally extending needle and terminating at a location proximal to the proximal end of the hollow distally extending needle;
- advancing the distal end of the hollow distally extending needle including the visualization stylet assembly disposed therein through at least one layer of tissue of a subject into an anatomical target location of a subject;
- stopping advancement of the distal end of the hollow distally extending needle when the distal end of the hollow distally extending needle arrives at a target location within the subject to be examined;
- and
- inspecting the target location using the visualization stylet.
3 more elements
A method of examining an internal anatomical structure of a subject, comprising:
- providing an outer assembly including a housing having a hollow distally extending needle extending distally therefrom, the hollow distally extending needle having a distal end and a proximal end, wherein the hollow distally extending needle forms a passageway to pass at least one of fluid and instruments therethrough;
- providing a visualization stylet that is at least partially disposed within the passageway, the visualization stylet being removably coupled to the outer assembly;
- advancing the distal end of the hollow distally extending needle including the visualization stylet disposed therein through tissue of a subject into a peritoneum of the subject;
- stopping advancement of the distal end of the hollow distally extending needle upon when the visualization stylet arrives at a target location within the subject to be examined;
- and
- inspecting the target location using the visualization stylet, wherein the peritoneum is not insufflated prior to the inspecting step.
3 more elements
Dependencies are inferred from the claim text.