MEDICAL SYSTEMS AND METHODS

• US 20140142376A1
• Filed: 11/19/2013
• Published: 05/22/2014
• Est. Priority Date: 11/19/2012
• Status: Abandoned Application

• Current Assignee: Somnath Ghosh
• Original Assignee: Somnath Ghosh
• Inventors: GHOSH, Somnath
• Application Number:
  US14/084,486
• Publication Number:
  US 20140142376A1
• Time in Patent Office: Days
• US Class Current: 600/104
• CPC Class Codes: A61B 1/018 for receiving instruments
• CPC Class Codes: A61B 1/2676 Bronchoscopes
• CPC Class Codes: A61M 1/85 with gas or fluid supply means, e.g. for supplying rinsing fluids or anticoagulants for negative pressure wound therapy A61M1/92, A61M1/94; combined with tracheal tubes A61M16/0463; dental instruments with combined rinsing and aspirating A61C17/0208
• CPC Class Codes: A61M 16/0463 combined with suction tubes, catheters or the like; Outside connections
• CPC Class Codes: A61M 2025/0008 having visible markings on its surface, i.e. visible to the naked eye, for any purpose, e.g. insertion depth markers, rotational markers or identification of type
• CPC Class Codes: A61M 2025/1052 for temporarily occluding a vessel for isolating a sector
• CPC Class Codes: A61M 2210/1039 Lungs
• CPC Class Codes: A61M 25/10 Balloon catheters A61M25/0125 takes precedence; embolectomy A61B17/22032; retractors A61B17/02; inflatable balloons for placing stents or stent-grafts A61F2/958 ; stomach balloons for treatment of obesity A61F5/0003; oesophagal tubes A61J15/00
• CPC Class Codes: A61M 25/10182 Injector syringes
• CPC Class Codes: A61M 25/10184 Means for controlling or monitoring inflation or deflation

Abstract

A medical device for performing a bronchoalveolar lavage (BAL) that includes a tubing having a first lumen configured for communication with a first reservoir, the first lumen having an open distal end configured for communication with the first reservoir, and a second lumen that is separate from the first lumen and configured for communication with a second reservoir. The tubing also includes an inflatable cuff that is disposed proximate the open distal end and configured for communication with the second reservoir via the second lumen, wherein the open distal end and the inflatable cuff in a deflated position are both configured for receipt within a working channel of a bronchoscope.

Claims

1. A medical device for performing a bronchoalveolar lavage (BAL), comprising:

a tubing having

a first lumen configured for communication with a first reservoir, the first lumen having an open distal end configured for communication with the first reservoir,

a second lumen that is separate from the first lumen and configured for communication with a second reservoir, and

an inflatable cuff that is disposed proximate the open distal end and configured for communication with the second reservoir via the second lumen, wherein the open distal end and the inflatable cuff in a deflated position are both configured for receipt within a working channel of a bronchoscope.

2. The medical device of claim 1, wherein the first reservoir is a fluid source housing fluid and the second reservoir is an air source housing air.

3. The medical device of claim 1, wherein a portion of the tubing including the open distal end and the inflatable cuff is sized to be housed within the working channel of the bronchoscope while the cuff is in the deflated position.

4. The medical device of claim 1, further comprising one or more distance markers disposed on the tubing, wherein the markers are disposed on the tubing on a proximal side of the inflatable cuff in a direction toward a proximal end of the tubing.

5-6. -6. (canceled)

7. A method for performing a bronchoalveolar lavage (BAL), comprising:

inserting a movable tubing with an inflatable cuff in a deflated position into an air passageway of a subject;

positioning the movable tubing in the air passageway by visually monitoring an image of a distal portion of the tubing inserted into the air passageway;

insufflating the inflatable cuff to an inflated position to create a wedge to seal off an area of the air passageway; and

aspirating a lavage fluid specimen from the sealed-off area through the tubing.

8. The method of claim 7, further comprising instilling fluid into the sealed-off area through the tubing before aspirating the lavage fluid specimen.

9. The method of claim 8, further comprising instilling approximately 20 milliliters (ml) to approximately 40 ml of fluid and repeating the instilling and aspirating steps at least 4 times.

10. The method of claim 8, further comprising inserting the movable tubing into the air passageway of the subject within a working channel of a bronchoscope and positioning the bronchoscope in the air passageway.

11. The method of claim 10, further comprising extending the inflatable cuff in the deflated position to a desired position beyond a positioned distal tip of the bronchoscope and insufflating the inflatable cuff, which is disposed proximate a distal end of the tubing, to the inflated position to create the wedge.

12. The method of claim 11, further comprising using a camera associated with the bronchoscope to confirm proper positioning of the cuff in the air passageway, the camera transmitting a still image or video image for visual monitoring.

13. The method of claim 10, further comprising deflating the cuff and completely retracting the distal end of the tubing and the cuff into the working channel from the air passageway before removing the bronchoscope after aspiration.

14. The method of claim 10, further comprising extending a first depth marker of a plurality of depth markers on the tubing from inside the working channel to a distal position outside the working channel after the cuff is extended outside the working channel.

15. The method of claim 14, further comprising using a camera to observe the first depth maker to confirm proper positioning of the cuff in the air passageway.

21. The method of claim 7, further comprising:

providing the movable tubing having a first lumen configured for communication with a first reservoir, the first lumen having an open distal end configured for communication with the first reservoir, a second lumen that is separate from the first lumen and configured for communication with a second reservoir, and the inflatable cuff that is disposed proximate the open distal end and configured for communication with the second reservoir via the second lumen, wherein the open distal end and the inflatable cuff in the deflated position are both configured for receipt within a working channel of the bronchoscope.

22. The method of claim 21, wherein:

insufflating the inflatable cuff to the inflated position is by insufflating air or fluid from the second reservoir through the second lumen, and

aspirating the lavage fluid specimen from the sealed-off area occurs through the first lumen.

16. A method for performing an endobronchial balloon tamponade of pulmonary hemorrhage, comprising:

inserting a bronchoscope with a working channel housing a movable tubing into an air passageway of a subject;

positioning the bronchoscope in the air passageway;

extending the tubing beyond a positioned distal tip of the bronchoscope to a desired position in the air passageway; and

insufflating in the air passageway an inflatable cuff positioned proximate a distal end of the tubing.

17. The method of claim 16, further comprising positioning the bronchoscope in a bleeding segment or subsegment of the air passageway and extending the tubing to the desired position in the bleeding segment or subsegment.

18. The method of claim 16, further comprising deflating the inflatable cuff to check for hemostasis using a camera of the bronchoscope.

19. The method of claim 16, further comprising removing the bronchoscope from the air passageway while leaving the tubing and the insufflated cuff in the air passageway.

20. The method of claim 19, further comprising clamping the tubing at a point beyond a bronchoscope tip after the bronchoscope is removed from the air passageway to ensure the inflatable cuff remains inflated after the bronchoscope is removed from the air passageway.