SURGICAL INSTRUMENTS FOR CREATING A PNEUMOSTOMA AND TREATING CHRONIC OBSTRUCTIVE PULMONARY DISEASE
First Claim
1. An instrument adapted to create a stoma into a lung of a patient the patient having a chest wall, a parietal membrane, a visceral membrane and a pleural cavity between the parietal membrane and visceral membrane, the stoma passing through the chest wall, the parietal membrane and the visceral membrane into parenchymal tissue of the lung and being sealed from the pleural cavity, wherein the instrument comprises:
- an elongate tube having a proximal end, a distal end and a lumen;
an expandable device connected to the distal end of the elongate tube wherein the expandable device has a first configuration which is approximately the same in diameter as the elongate tube and a second configuration in which it is significantly larger in diameter than the elongate tube;
a grip attached to the proximal end of the tube;
a lever mounted on the grip;
one or more filaments connecting the lever and the expandable device such that operation of the lever pulls the filaments towards the proximal end of the tube thereby causing expansion of the expanding device from the first configuration to the second configuration.
1 Assignment
0 Petitions
Accused Products
Abstract
Surgical instruments and techniques are provided for creating a pneumostoma through the chest wall into the lung of a patient. The pneumostomy instruments and techniques may be used to create a pneumostoma which allows gases to escape from the lung through the chest wall and thereby treat chronic obstructive pulmonary disease.
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Citations
20 Claims
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1. An instrument adapted to create a stoma into a lung of a patient the patient having a chest wall, a parietal membrane, a visceral membrane and a pleural cavity between the parietal membrane and visceral membrane, the stoma passing through the chest wall, the parietal membrane and the visceral membrane into parenchymal tissue of the lung and being sealed from the pleural cavity, wherein the instrument comprises:
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an elongate tube having a proximal end, a distal end and a lumen; an expandable device connected to the distal end of the elongate tube wherein the expandable device has a first configuration which is approximately the same in diameter as the elongate tube and a second configuration in which it is significantly larger in diameter than the elongate tube; a grip attached to the proximal end of the tube; a lever mounted on the grip; one or more filaments connecting the lever and the expandable device such that operation of the lever pulls the filaments towards the proximal end of the tube thereby causing expansion of the expanding device from the first configuration to the second configuration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A pneumostomy instrument comprising:
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a flexible tube having a proximal end, a distal end and a lumen; a pneumoplasty device connected to the distal end of the flexible tube wherein the pneumoplasty device has first configuration which is approximately the same in diameter as the flexible tube and a second configuration in which it is significantly larger in diameter than the flexible tube; an expandable device connected to the distal end of the flexible tube wherein the expandable device has a first configuration in which it has approximately the same diameter as the flexible tube and a second configuration in which it is significantly larger in diameter than the flexible tube; a grip attached to the proximal end of the flexible tube; a lever mounted on the grip; one or more filaments connecting the lever and the pneumoplasty device such that operation of the lever pulls the filaments towards the proximal end of the flexible tube thereby causing expansion of the pneumoplasty device from the first configuration to the second configuration. - View Dependent Claims (14, 16, 17)
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18. A method for forming a stoma into a lung of a person the person having a chest wall, a parietal membrane, a visceral membrane and a pleural cavity between the parietal membrane and visceral membrane, the stoma passing through the chest wall, the parietal membrane and the visceral membrane into the lung and being sealed from the pleural cavity, wherein the method comprises:
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receiving an instrument having an expandable device at a distal end of a flexible tube and a manual actuator at a proximal end of the flexible tube and a mandrel position within the flexible tube; making an incision in a chest wall of a patient; placing the expandable device through the incision in the chest wall of the patient, through the parietal membrane and visceral membrane and into the lung of the patient; removing the mandrel from a lumen of the flexible tube; operating the manual actuator to cause the expanding device to transition from a first configuration in which it is similar in diameter as the flexible tube and a second configuration in which it is significantly larger in diameter than the flexible tube and thereby engage the lung of the patient; applying traction to the proximal end of the tube to place the parietal membrane in contact with the visceral membrane surrounding the flexible tube; and causing pleurodesis of the parietal membrane visceral membrane surrounding the flexible tube. - View Dependent Claims (19, 20)
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Specification