Retreating stop ultrasound needle guide
AssigneeOregon Health & Science University
InventorAndrew Neice
Life of this patent
Estimating the term…
Abstract
Retreating stop ultrasound needle guide systems are disclosed. In one example approach, a needle guide system includes a guiding component which can be positioned at different locations and angles on a mounting component, where the mounting component can be coupled to a distal end of an ultrasound probe. When positioned at the different locations and angles on the mounting component, the guiding component can guide a needle through the skin of a patient at a constant point and when the needle is advanced so that a hub of the needle reaches a stop of the guiding component, a tip of the needle is positioned directly underneath the ultrasound at a pre-selected depth.
Claims15
A needle guide system for engagement with an ultrasound probe having a probe axis, the needle guide system comprising:
- a mounting component, the mounting component comprising:
- a planar mounting surface including a slot at each of a plurality of different predetermined locations on the planar mounting surface;
- and
- a clip positioned on a side of the planar mounting surface, the clip being configured to engage with the distal end of the ultrasound probe and, when engaged with the distal end of the ultrasound probe, position the planar mounting surface adjacent to the probe axis;
- a guiding component with a linear channel extending therethrough to guide a needle having a length, the guiding component including a tab configured to separately and releasably engage with each slot at each of the plurality of different predetermined locations on the planar mounting surface to hold the guiding component in a fixed position relative to the planar mounting surface at that location;
- wherein, for each location of the plurality of different predetermined locations on the planar mounting surface, when the tab of the guiding component is engaged with the slot at that location:
- a) a central axis extends through the linear channel of the guiding component substantially parallel to the planar mounting surface and offset from the planar mounting surface by substantially a same distance;
- b) the central axis intersects substantially a same point in a plane positioned below and perpendicular to the planar mounting surface;
- c) the distance between the guiding component and the probe axis along the central axis is substantially the same distance;
- and
- d) when the needle is fully inserted through the guiding component, the length of the needle reaches a different depth along the probe axis.
An out-of-plane ultrasound needle guide for engagement with an ultrasound probe having a probe axis corresponding to an ultrasound beam of the ultrasound probe, the needle guide comprising:
- a mounting component, the mounting component comprising:
- a planar mounting surface, the planar mounting surface including a slot at each of a plurality of different predetermined locations on the planar mounting surface;
- and
- a clip positioned on a side of the planar mounting surface the clip being configured to engage with the distal end of the ultrasound probe having a probe axis and, when engaged with the distal end of the ultrasound probe, position the planar mounting surface adjacent to the probe axis;
- a guiding component with a linear channel extending therethrough to guide a needle having a length, wherein the linear channel is sized to receive the needle and preclude advancement of the needle through the linear channel beyond a hub of the needle, the guiding component including a tab configured to separately and releasably engage with a slot selected from the plurality of different predetermined locations on the planar mounting surface to hold the guiding component in a fixed position relative to the planar mounting surface at that location;
- wherein, for each location of the plurality of different predetermined locations on the planar mounting surface, when the tab of the guiding component is engaged with the slot at that location:
- a) a central axis extending through the linear channel of the guiding component is substantially parallel to the planar mounting surface and offset from the planar mounting surface by substantially a same distance,
- b) the central axis intersects substantially a same point in a plane positioned below and perpendicular to the planar mounting surface,
- c) the distance between the guiding component and the probe axis along the central axis is substantially the same as the length of the needle, and
- d) when the needle is fully inserted through the guiding component, the length of the needle reaches a different predetermined depth along the probe axis.
Dependencies are inferred from the claim text.