Endotracheal tube with suctioning means

• US 5,520,175 A
• Filed: 05/22/1995
• Issued: 05/28/1996
• Est. Priority Date: 05/22/1995
• Status: Expired due to Fees

• Current Assignee: Fry, William R.
• Original Assignee: Fry, William R.
• Inventors: Fry, William R.
• Primary Examiner(s): Lewis, Aaron J.
• Application Number:
  US08/445,683
• Time in Patent Office: 372 Days
• Field of Search: 128/207.14, 128/207.15, 604/102
• US Class Current: 128/207.15
• CPC Class Codes: A61M 16/0409 with mean for closing the oesophagus
• CPC Class Codes: A61M 16/0463 combined with suction tubes, catheters or the like; Outside connections
• CPC Class Codes: A61M 16/0479 above the cuff, e.g. giving access to the upper trachea
• CPC Class Codes: A61M 16/0486 Multi-lumen tracheal tubes

Abstract

An improved endotracheal tube provides an inflatable cuff having a concavely shaped superior surface forming a collection basin and means to facilitate accurate suctioning of the basin while the tube is in position. In the preferred embodiment the means to facilitate accurate suctioning of the collection basin takes the form of a guide wire having one end attached within the basin and the other end terminating freely outside the body of the patient, thus enabling a suction catheter to be slideably moved along the guide wire and into the basin to remove substances collected therein. The preferred embodiment further includes means to releasably secure the free end of the guide wire when not in use. Alternative means to facilitate accurate suctioning include the provision of a separate passageway having a first end external to the body of the patient for connection to a suctioning means and a second end terminating within the basin. This separate passageway may either be bonded along at least a portion of the ventilation tube or provided as a lumen extending within at least a portion of the wall of the ventilation tube.

Claims

1. An endotracheal tube, comprising:

a flexible ventilation tube having a proximal end adapted for connection to a ventilator and a distal end terminating within a patient'"'"'s trachea;

an inflatable balloon cuff attached near the distal end of the ventilation tube to provide a seal against an inner wall of a trachea, the cuff including a convexly shaped superior surface facing the proximal end which, when inflated, forms a collection basin;

means to inflate the cuff; and

means integral to the endotracheal tube to facilitate accurate suctioning of the collection basin while the tube is in position.

2. The endotracheal tube as set forth in claim 1, the means integral to the endotracheal tube to facilitate accurate suctioning including means to guide a suction catheter directly into the basin to remove substances collected therein.

3. The endotracheal tube as set forth in claim 2, the means to guide a suction catheter directly into the basin taking the form of a guide wire having one end attached within the basin and the other end terminating freely outside the body of the patient, enabling the suction catheter to be slideably moved thereon and into the basin.

4. The improved endotracheal tube as set forth in claim 3, further including means to releasably secure the free end of the guide wire when not in use.

5. The endotracheal tube as set forth in claim 1, the means integral to the endotracheal tube to facilitate accurate suctioning including a separate passageway having a first end external to a body of a patient for connection to a suctioning means and a second end terminating within the basin.

6. The endotracheal tube as set forth in claim 5, the separate passageway being bonded along at least a portion of the ventilation tube.

7. The endotracheal tube as set forth in claim 5, the separate passageway being a lumen extending within at least a portion of the wall of the ventilation tube.

8. In an endotracheal tube including an inflatable cuff which seals against an inner wall of a trachea, the improvement comprising:

a convexly shaped superior surface on cuff when inflated, thereby forming a collection basin; and

means integral to the endotracheal tube to facilitate accurate suctioning of the collection basin while the tube is in position.

9. The improved endotracheal tube of claim 8, the means integral to the endotracheal tube to facilitate accurate suctioning of the collection basin including:

a guide wire having one end attached within the basin and the other end terminating freely outside a body of a patient, thus enabling a hollow suction catheter to be placed thereon and slidingly moved into the basin to remove substances collected therein.

10. The improved endotracheal tube of claim 9, further including means no releasably secure the free end of the guide wire when not in use.

11. An endotracheal tube, comprising:

a primary flexible hollow tube having proximal and distal ends, the proximal end extending out of a body of a patient and being adapted for attachment to ventilation means, the length of the primary tube being such that the distal end terminates at a point within a trachea when properly positioned;

a single inflatable cuff formed annularly around the outer surface of the primary tube proximate to the distal end;

a secondary flexible hollow tube having proximal and distal ends, the distal end terminating within the cuff, the proximal end extending out of the body of the patient and being adapted for attachment to cuff inflation means;

the cuff when inflated having an anterior surface oriented toward a bronchial tree of the patient, a superior surface oriented toward a larynx of the patient, and an outer surface which seals against an annular portion of the inner wall of the trachea,

the superior surface of the cuff forming a cup having a rim extending furthermost up and toward the larynx, the bottom of the cup thereby forming a basin around the outer surface of the primary tube where it extends through the cuff; and

a guide wire having proximal and distal ends, the distal end being attached at a point within the basin formed around the bottom of the cup formed in the cuff, the proximal end terminating freely outside a body of a patient, whereby an individual maintaining a patient may place a suction tube onto the proximal end of the guide wire and slide the suction tube therealong for precise placement into the basin to remove substances collected therein.

12. The endotracheal tube of claim 11, the proximal end of the primary tube further including means to releasably secure the proximal end of the guide wire when not in use.