Catheter design for use in treating pleural diseases
AssigneeCareFusion 2200, Inc.
InventorsAnthony Looper, John A. Krueger, Jeffrey Schmitt
Life of this patent
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Abstract
A catheter for use in treating pleural diseases, such as pleural effusions and pneumothorax, includes a tip portion that is configured to irritate the pleura when the catheter is inserted in the pleural cavity, thereby initiating mechanical pleurodesis. The tip portion has a substantially rough configuration and may include one or more protrusions that contact the pleura when the catheter is in use, thereby irritating the layers. This irritation causes the creation of fibrous adhesions between the parietal and visceral layers that close off the pleural cavity and prevent further fluid and/or air accumulations that occur as a result of pleural diseases.
Claims21
A method of removing fluid and performing mechanical pleurodesis comprising:
- inserting a catheter into a patient's pleural cavity, the catheter comprising a lumen and an outer wall at least partially surrounding the lumen with an external surface extending from a proximal end of the catheter to an opening of the lumen at a distal most tip of the catheter, wherein a distal end portion of the external surface of the catheter comprises a plurality of protrusions thereon;
- using the lumen of the catheter to remove pleural fluid from the patient's pleural cavity;
- and
- performing mechanical pleurodesis by irritating tissue of the pleural cavity to promote the creation of fibrous adhesions between visceral layers of the pleural cavity, wherein the mechanical pleurodesis is performed by moving the distal end portion of the catheter within the pleural cavity to cause contact between the plurality of protrusions and tissue of the pleural cavity.
A method of performing mechanical pleurodesis comprising:
- inserting a catheter into a patient's pleural cavity, the catheter comprising a lumen and an outer wall at least partially surrounding the lumen with an external surface extending from a proximal end of the catheter to an opening of the lumen at a distal most tip of the catheter, wherein a distal end portion of the external surface of the catheter comprises a plurality of protrusions thereon;
- performing mechanical pleurodesis by irritating tissue of the pleural cavity to promote the creation of fibrous adhesions between visceral layers of the pleural cavity, wherein the mechanical pleurodesis is performed by moving the distal end portion of the catheter within the pleural cavity to cause contact between the plurality of protrusions and tissue of the pleural cavity;
- and
- using the lumen of the catheter to remove pleural fluid from the patient's plural cavity.
An apparatus for removing fluid and performing mechanical pleurodesis between a parietal and a visceral layer of a patient's pleura, the apparatus comprising:
- an elongated tubular member that extends between a proximal end and a distal most tip;
- a lumen;
- and
- an outer wall at least partially surrounding the lumen with an external surface extending from the proximal end of the tubular member to an opening of the lumen at a distal most tip of the of the tubular member, wherein a distal end portion of the external surface of the tubular member comprises a plurality of protrusions thereon, wherein the tubular member is configured to be inserted into a patient's pleural cavity to remove pleural fluid from the patients pleural cavity via the lumen and the plurality of protrusions at the distal end portion are used to irritate tissue of the pleural cavity to promote the creation of fibrous adhesions between the parietal and a visceral layer of the patient's pleura, wherein the mechanical pleurodesis is performed by moving the distal end portion of the tubular member within the pleural cavity to cause contact between the plurality of protrusions and tissue of the pleural cavity.
Dependencies are inferred from the claim text.