Guidewire navigation for sinuplasty

Patent metadata

Field	Value
Publication number	US-10463242-B2
Application number	US-201514792839-A
Country	US
Kind code	B2
Filing date	Jul 7, 2015
Priority date	Jul 9, 2014
Publication date	Nov 5, 2019
Grant date	Nov 5, 2019

Abstract

A method includes receiving image data, receiving surgical procedure data, and generating an operation plan. The image data is associated with anatomical structures in a nasal cavity of a patient. The image data and the surgical procedure data are received through a computing system. The act of generating an operation plan includes identifying a path for a surgical instrument in accordance with the image data and in accordance with the surgical procedure data. The act of generating the operation plan is performed through a computing system. The act of generating an operation plan further includes generating one or more instructional images depicting the identified path for the surgical instrument in a depiction of anatomical structures in the nasal cavity of the patient.

First claim

We claim:

1. A method comprising:
(a) receiving image data, wherein the image data is associated with anatomical structures in a nasal cavity of a patient, wherein the image data is received by a computing system;
(b) receiving surgical procedure data, wherein the surgical procedure data is received by the computing system, based upon a user selecting a nasal passageway, and the computing system automatically accessing a set of sinuplasty procedure data for the nasal passageway;
(c) generating an operation plan, wherein the act of generating the operation plan is performed by the computing system, wherein the act of generating the operation plan comprises:
(i) identifying a path for a surgical instrument in accordance with the image data and in accordance with the surgical procedure data, wherein the surgical instrument comprises a guidewire,
(ii) generating a set of instructional images depicting the identified path for the surgical instrument in a depiction of the anatomical structures in the nasal cavity of the patient;
(iii) automatically identifying at least two anatomical structures in accordance with the image data using a sino-nasal recognition algorithm;
(iv) setting a color for a first anatomical structure of the at least two anatomical structures based upon a user color input; and
(v) setting a transparency for a second anatomical structure of the at least two anatomical structures based upon a user transparency input, wherein the transparency input indicates a level of opacity less than 100%;

(d) during the execution of the operation plan, receiving an endoscopic video image from an endoscope inserted into the nasal cavity of the patient;
(e) while the surgical instrument is being used, receiving, at the computing system, position data from a sensing coil located at a distal tip of the guidewire of the surgical instrument;
(f) presenting the endoscopic video image while simultaneously presenting the set of instructional images; and
(g) executing the operation plan using the endoscopic video image and the set of instructional images;
wherein the act of presenting the endoscopic video image while simultaneously presenting the set of instructional images comprises:
(i) superimposing an instrument path indicator on the endoscopic video image, wherein at least one part of the instrument path is opaque to indicate that it is directly visible and at least one other part of the instrument path is semi-transparent to indicate that it is not directly visible,
(ii) incorporating the position data into the set of instructional images to depict a graphical representation of the surgical instrument's actual position in relation to the instrument path indicator,
(iii) displaying a first image from the set of instructional images that is associated with a first stage of a procedure based upon the position data indicating the first stage of the procedure is being performed,
(iv) superimposing a set of directional indicators on the graphical representation, wherein the set of directional indicators shows a change in position and a change in orientation that must be made with the surgical instrument in order to align the graphical representation with the instrument path indicator; and
(v) displaying a second image from the set of instructional images that is associated with a second stage of the procedure based upon the position data indicating that the second stage of the procedure is being performed.

2. The method of claim 1 , wherein the image data comprises data from a plurality of computed tomography (CT) images.

3. The method of claim 1 , wherein the act of receiving surgical procedure data comprises receiving a selection of a field of view to be depicted in at least one of the set of instructional images.

4. The method of claim 1 , wherein the act of receiving surgical procedure data comprises receiving input indicating a path for a surgical instrument relative to one or more anatomical structures in the nasal cavity of the patient.

5. The method of claim 1 , further comprising manipulating the image data to highlight an outflow tract associated with at least one paranasal sinus of the patient.

6. The method of claim 1 , wherein at least one of the set of instructional images comprises a video image.

7. The method of claim 1 , wherein the computing system comprises a sinus surgery system in communication with at least one other computing device over a network, wherein the sinus surgery system is operable to perform image guided surgery.

8. A method comprising:
(a) receiving image data, wherein the image data is associated with anatomical structures in a nasal cavity of a patient, wherein the image data is received by a computing system;
(b) receiving surgical procedure data, wherein the surgical procedure data is received by the computing system;
(c) generating a set of instructional images identifying a path for a surgical instrument in accordance with the image data and in accordance with the surgical procedure data, wherein the act of generating the set of instructional images is performed by the computing system;
(d) for each stage of a surgical procedure associated with the set of instructional images, determining a current stage of the surgical procedure based upon position data from a position sensor located at a distal tip of the surgical instrument;
(e) based upon the current stage of the surgical procedure, displaying an instructional image of the set of instructional images that is associated with the current stage of the surgical procedure; and
(f) during the surgical procedure, providing an alert to a physician when position data from the position sensor indicates that the surgical instrument has deviated from the identified path;
wherein generating the set of instructional images comprises:
(i) analyzing the image data and automatically identifying a set of outflow tracts of the paranasal sinuses of the patient; and
(ii) adding a color highlight to the set of outflow tracts;

wherein the displayed instructional image includes:
(i) a representation of a surgical instrument destination positioned and oriented in accordance with the identified path in a depiction of the anatomical structures in the nasal cavity of the patient, wherein the representation of the surgical instrument destination is a semi-transparent image of the surgical instrument;
(ii) a graphical representation of an actual surgical instrument positioned and oriented in accordance with the position data, wherein the graphical representation of the actual surgical instrument position is an opaque image of the surgical instrument; and
(iii) the alert, wherein the alert is a set of directional indicators superimposed on the graphical representation, wherein the set of directional indicators shows a change in position and a change in orientation that must be made with the surgical instrument in order to align the graphical representation with the identified path.

Assignees

• Acclarent Inc

Inventors

• Kesten Randy J
• Girotra Rohit

Classifications

• A61B5/066

  Superposing sensor position on an image of the patient, e.g. obtained by ultrasound or x-ray imaging · CPC title

• A61B6/501

  for diagnosis of the head, e.g. neuroimaging or craniography · CPC title

• A61B2034/107

  Visualisation of planned trajectories or target regions · CPC title

• A61B5/055

  involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging · CPC title

• A61B17/24

  for use in the oral cavity, larynx, bronchial passages or nose (for medical inspection of cavities or tubes in the body A61B1/00); Tongue scrapers · CPC title