Apparatus for sealing the esophagus and providing artificial respiration and evacuating the stomach

• US 3,905,361 A
• Filed: 04/24/1974
• Issued: 09/16/1975
• Est. Priority Date: 04/24/1974
• Status: Expired due to Term

• Current Assignee: Brunswick Biomedical Technologies, Inc.
• Original Assignee: John R. Hewson, Roy H. Hewson
• Inventors: Hewson, John R., Hewson, Roy H.
• Primary Examiner(s): Gaudet, Richard A.
• Assistant Examiner(s): Recla, Henry J.
• Application Number:
  US05/463,585
• Time in Patent Office: 510 Days
• Field of Search: 128/145.5,145.6,145.7,142.4,276,277,278,351,188,349B,349BV,DIG.26
• US Class Current: 128/202.16
• CPC Class Codes: A61M 1/84 Drainage tubes; Aspiration tips for negative pressure wound therapy A61M1/90; for surgical cutting instruments A61B17/32
• CPC Class Codes: A61M 16/0415 with access means to the stomach
• CPC Class Codes: A61M 16/0434 Cuffs
• CPC Class Codes: A61M 16/0463 combined with suction tubes, catheters or the like; Outside connections
• CPC Class Codes: A61M 16/0484 at the distal end
• CPC Class Codes: A61M 16/0488 Mouthpieces; Means for guiding, securing or introducing the tubes guiding or introducing with laryngoscopes A61B1/267; holding devices on the body A61M25/02
• CPC Class Codes: A61M 16/0493 with means for protecting the tube from damage caused by the patient's teeth, e.g. bite block
• CPC Class Codes: A61M 16/06 Respiratory or anaesthetic masks
• CPC Class Codes: A61M 2210/1053 Stomach

Abstract

Apparatus for use in artificial respiration and stomach evacuation comprising an elongated member and ventilation mask. The elongated member which is designed to be inserted into the esophagus and stomach has an expandable inflatable element which can be operated externally after insertion in order to close the esophagus to prevent inflation of the stomach or aspiration of the contents of the stomach into the respiratory system. The ventilation mask, which fits over the mouth and nose provides a seal against the patient'"'"''"'"'s face when it is held in place. A ventilation opening in the mask allows air or oxygen to be directed through the mouth into the lungs for artificial respiration. The apparatus preferably includes a tubular fluid passageway in the elongated member with evacuation openings beyond the inflatable element to allow the contents of the stomach to be aspirated through the passageway and externally of the mask. Fluid can also be introduced into the stomach through the passageway.

Claims

1. Apparatus for medicinal purposes comprising an elongated solid, tubular member constructed and arranged to be inserted into the esophagus and having outer and inner ends, an expandable element carried by the member in the vicinity of its inner end, means for causing the element to expand so as to form an effective seal isolating the stomach from the lungs of a patient, a face mask including a cup-shaped section having a collar means about the periphery thereof for providing a seal with the face of a patient;

said elongated tubular member extending through said cup-shaped section in the vicinity of its outer end, and an opening through said cup-shaped section defining a ventilating passageway passing to the inside of the mask for introducing ventilating gas therein which may pass through the nose and/or mouth and trachea to the patient'"'"''"'"'s lungs.

2. Apparatus as defined in claim 1 in which the elongated member has a port adjacent to the outer end of the member and a port located adjacent to the inner end and contains a duct which provides fluid communication between the ports.

3. Apparatus as defined in claim 1, in which the expandable element comprises an inflatable cuff.

4. Apparatus as defined in claim 3 further characterized by a channel in the elongated member and connected to the cuff and through which the cuff may be inflated.

5. Apparatus as claimed in claim 1 in which the outer end of the elongated member is connected to a sleeve in turn removably mounted in and extending through the mask.

6. Apparatus as defined in claim 1 in which an inflatable collar is secured to the edge of the mask to form a seal between the mask and the patient'"'"''"'"'s face.

7. Apparatus as claimed in claim 1 further characterized by a ventilation tube in communication with the opening in said mask for providing mouth to mask ventilation.

8. Apparatus for medical purposes comprising, an elongated member constructed and arranged to be inserted into the esophagus and having outer and inner ends, an expandable element carried by the member in the vicinity of its inner end, means for causing the element to expand so as to form an effective seal isolating the stomach from the lungs of a patient, a face mask connected to the elongated member in the vicinity of its outer end with said face mask having means for forming a seal with the face of a patient, an opening through the mask to the inside thereof for introducing ventilating gas therein which may pass through the nose and/or mouth and trachea to the patient'"'"''"'"'s lungs, said elongated member being tubular with a port adjacent to the outer end of the member and a port located adjacent to the inner end and containing a duct which provides fluid communication between the ports, a second opening in the mask through which the tubular member extends, and said port adjacent the outer end of the tubular member lying outside said mask.

9. Apparatus as defined in claim 8 further characterized by a ventilation tube in communication with the opening in said mask for providing mouth to mask ventilation, said tube being open to the inside of the mask.

10. Apparatus as defined in claim 2 further characterized by said duct being an integral part of the tubular member.

11. Apparatus as defined in claim 2 further characterized by said duct being a separate member that extends out the ports and has openings in its inner end for communicating with the interior of the stomach.