US2006150982A1PendingUtilityA1

Nasal ventilation interface and system

Assignee: WOOD THOMAS JPriority: Aug 5, 2003Filed: Apr 23, 2004Published: Jul 13, 2006
Est. expiryAug 5, 2023(expired)· nominal 20-yr term from priority
Inventors:Thomas Wood
A61M 16/0833A61M 16/0666A61M 16/08
45
PatentIndex Score
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Cited by
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Claims

Abstract

A ventilation interface and system is described which can be adapted to be connected to a source of ventilation. The ventilation interface and system includes an exhaust port positioned at a midpoint between at least two ventilation connectors. The ventilation interface system may optionally include feed tubes, y-connector, tube holder, and headgear.

Claims

exact text as granted — not AI-modified
1 . A nasal ventilation interface comprising: 
 a cannula connectable to a source of ventilation gas via at least two ventilation connectors;    at least one reservoir flange coupled to the ventilation connectors and in close proximity with at least one nasal insert;    at least one seal portion positioned on a distal end of the at least one nasal insert;    a central reservoir between the at least one reservoir flange and the nasal insert;    at least one exhaust flange coupled to the central reservoir; and    an exhaust port coupled to the exhaust flange positioned at a midpoint between the at least two ventilation connectors.    
   
   
       2 . The ventilation interface according to  claim 1 , wherein the exhaust port is configured with an adjustable dial to adjust the aperture of the exhaust port.  
   
   
       3 . The ventilation interface according to  claim 1 , wherein the exhaust port has a decreasing circumference from a proximal portion towards a distal end of the exhaust port.  
   
   
       4 . The ventilation interface according to  claim 3 , wherein an interior wall of the exhaust port maintains a substantially constant diameter.  
   
   
       5 . The ventilation interface according to  claim 1 , further comprising at least one headgear flange.  
   
   
       6 . The ventilation interface according to  claim 5 , wherein the at least one headgear flange is connected a flanged on the outer wall of the cannula.  
   
   
       7 . The ventilation interface according to  claim 6 , wherein the headgear flange is substantially U-shaped.  
   
   
       8 . The ventilation interface according to  claim 1 , wherein at least one of the reservoir flange, nasal insert, and central reservoir are configured to provide laminar flow.  
   
   
       9 . The ventilation interface according to  claim 1  wherein the exhaust port has a substantially circular cross section.  
   
   
       10 . The ventilation interface according to  claim 1  wherein the seal portion has a substantially oval cross section.  
   
   
       11 . The ventilation interface according to  claim 1  wherein the seal portion is configured to receive a skirt to prevent leakage.  
   
   
       12 . The nasal ventilation interface according to  claim 1  further comprising: means for adjusting an aperture of the exhaust port.  
   
   
       13 . The nasal ventilation interface according to  claim 1  further comprising: a cannula with means for providing improved laminar flow between at least one of a second inflow portion, a third inflow portion, a first outflow portion, a second outflow portion and a third outflow portion.  
   
   
       14 . The nasal ventilation interface according to  claim 1  further comprising: means for slowing the inflowing air velocity decreasing a drop in pressure by allowing additional air molecules to enter the central reservoir while driven by a same pressure setting.  
   
   
       15 . A nasal ventilation interface comprising: 
 a cannula connectable to a source of ventilation gas via at least two ventilation connectors forming a first inflow portion;    a reservoir flange forming a second inflow portion;    at least one nasal insert, the at least one nasal insert forming a third inflow portion and a first outflow portion;    at least one seal portion positioned on a distal end of the at least one nasal insert;    a central reservoir forming a second outflow portion;    at least one exhaust flange forming a third outflow portion; and    an exhaust port positioned at a midpoint between the at least two ventilation connectors forming a fourth outflow portion and a fifth outflow portion.    
   
   
       16 . The ventilation interface according to  claim 15 , wherein the exhaust port is configured with an adjustable dial to adjust the aperture of the exhaust port.  
   
   
       17 . The ventilation interface according to  claim 15 , wherein the exhaust port has a decreasing circumference from a proximal portion towards a distal end of the exhaust port.  
   
   
       18 . The ventilation interface according to  claim 17 , wherein an interior wall of the exhaust port maintains a substantially constant diameter.  
   
   
       19 . The ventilation interface according to  claim 15 , further comprising at least one headgear flange.  
   
   
       20 . The ventilation interface according to  claim 19 , wherein the at least one headgear flange is connected to the reservoir outer wall.  
   
   
       21 . The ventilation interface according to  claim 20 , wherein the headgear flange is substantially U-shaped.  
   
   
       22 . The ventilation interface according to  claim 15 , wherein at least one of the reservoir flange, nasal insert, and central reservoir are configured to provide laminar flow.  
   
   
       23 . The ventilation interface according to  claim 15  wherein the exhaust port has a substantially circular cross section.  
   
   
       24 . The ventilation interface according to  claim 15  wherein the seal portion has a substantially oval cross section.  
   
   
       25 . The ventilation interface according to  claim 15  wherein the seal portion is configured to receive a skirt to prevent leakage.  
   
   
       26 . The nasal ventilation interface according to  claim 15  further comprising: means for adjusting an aperture of the exhaust port.  
   
   
       27 . The nasal ventilation interface according to  claim 15  further comprising: a cannula with means for providing improved laminar flow between at least one of a second inflow portion, a third inflow portion, a first outflow portion, a second outflow portion and a third outflow portion.  
   
   
       28 . The nasal ventilation interface according to  claim 15  further comprising: means for slowing the inflowing air velocity without a drop in pressure by allowing additional air molecules to enter the central reservoir.  
   
   
       29 . The nasal ventilation interface according to  claim 15  wherein the at least one nasal insert are removable.  
   
   
       30 . The nasal ventilation interface according to  claim 15  wherein the at least one nasal insert and seal portion create a seal with at least one naris.  
   
   
       31 . The nasal ventilation interface according to  claim 15  wherein the at least one nasal insert and seal portion create a seal in at least one naris with a slight expansion of the seal portion by a positive airway pressure.  
   
   
       32 . The nasal ventilation interface according to  claim 15  wherein the at least one nasal insert and seal portion are held in at least one naris by a headgear.  
   
   
       33 . A ventilation interface system, comprising: 
 a source of ventilation gas;    a connector having at least one branch that is coupled to the source of ventilation gas; and    a cannula that is connectable to the source of ventilation gas via another branch of the y-connector, wherein the cannula comprises a headgear flange that is engageable with a piece of headgear, at least two ventilation connectors forming a first inflow portion, a reservoir flange forming the first inflow portion into a second inflow portion, at least one nasal insert, the at least one nasal insert forming the second inflow portion into a third inflow portion and providing a path for a first outflow portion, a seal portion positioned on a distal end of the at least one nasal insert, a central reservoir forming the first outflowouflow portion into a second outflow portion, at least one exhaust flange forming the second outflow portion into a third outflow portion, and an exhaust port coupled to the central reservoir and positioned at a midpoint between the at least two ventilation connectors for forming the third outflow portion into the fourth outflow portion and forming the fourth outflow portion into a fifth outflow portion.

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