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US 4,449,523 AGranted
Talking tracheostomy tube
AssigneeImplant Technologies, Inc.
InventorsEdward H. Szachowicz, John Walsh
Life of this patent
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AssigneeImplant Technologies, Inc.
InventorsEdward H. Szachowicz, John Walsh
Estimating the term…
A talking tracheostomy tube according to the teachings of the present invention is shown in the preferred embodiment as including an inner cannula removably received within an outer cannula. The tracheostomy tube further includes, in the preferred embodiment, a first cuff for sealing between the outer cannula and the trachea for substantially preventing air introduced through the inner cannula to escape from the trachea through the larynx. In the preferred embodiment, air is introduced into the trachea above the first cuff by ports directionally drilled through the outer cannula and in fluid communication with a secondary passageway formed by and between the inner and outer cannulas. The inner end of the secondary passageway is formed by a sealing obstruction integrally formed in the inside surface of the outer cannula adjacent the inner end for the sealing receipt of the inner cannula. The outer end of the secondary passageway is sealed by a collar integrally formed on the outer end of the inner cannula which abuts and seals within a recess of a collar integrally formed on the outer end of the outer cannula. In its preferred form of the present invention, the tracheostomy tube further includes a second cuff for sealing between the outer cannula and the stoma of the patient for preventing the secondary air introduced through the ports from escaping through the stoma in the neck of the patient.
In a tracheostomy tube for insertion through an incision in the neck of a patient and into the trachea to support breathing including a cannula having a first end for placement within the trachea for directing air or oxygen towards the lungs of the patient and a second end located outside of the trachea and the neck of the patient for receiving air or oxygen, and first means for sealing between the cannula and the trachea for substantially preventing air or oxygen from escaping from the first end of the cannula upward in the trachea towards the larynx, with the improvement comprising means for allowing the patient utilizing a tracheostomy tube to phonate comprising, in combination:
In a tracheostomy tube for insertion through an incision in the neck of a patient and into the trachea to support breathing including a cannula having a first end for placement within the trachea for directing air or oxygen towards the lungs of the patient and a second end located outside of the trachea and the neck of the patient for receiving air or oxygen, and first means for sealing between the cannula and the trachea for substantially preventing air or oxygen from escaping from the first end of the cannula upward in the trachea towards the larynx, with the cannula including an outer cannula having an outer end, an inner end, an outside surface, and an inside surface and a removable inner cannula having an outer end, an inner end, an outside surface, and an inside surface defining the tracheostomy tube passageway, with the inner cannula having a shape complementary to and for receipt within the inside surface of the outer cannula, with the improvement comprising means for allowing the patient utilizing a tracheostomy tube to phonate comprising, in combination:
Dependencies are inferred from the claim text.