MEDICAL APPARATUS AND METHOD FOR FEEDING AND ASPIRATING

• US 3,860,000 A
• Filed: 07/12/1973
• Issued: 01/14/1975
• Est. Priority Date: 07/12/1973
• Status: Expired due to Term

• Current Assignee: Lear Romec Corporation (Crane Company)
• Original Assignee: George S. Rives, John A. Wootten
• Inventors: Rives, George S., Wootten, John A.
• Primary Examiner(s): Gaudet, Richard A.
• Assistant Examiner(s): Yasko, J.
• Application Number:
  US05/378,408
• Time in Patent Office: 551 Days
• Field of Search: 128/230,213,214,224,2A,2R,2S,227,276
• US Class Current: 604/28
• CPC Class Codes: A61M 31/00 Devices for introducing or retaining media, e.g. remedies, in cavities of the body A61M25/00 takes precedence ; introducing or retaining ophthalmic products into the ocular cavities A61F9/0008

Abstract

Apparatus includes means for feeding a solution to the stomach of a patient, and sensing the pressure within the stomach to stop feeding when an overpressure condition exists. The stomach is then aspirated for a predetermined time. After aspiration, irrigation fluid is pulsed to the stomach.

Claims

1. In an apparatus for feeding a solution to a patient'"'"''"'"'s stomach, said apparatus including tube means having tube opening means for positioning within a patient'"'"''"'"'s stomach and feed means connected to said tube means for feeding a solution through said tube and tube opening means, the improvement comprising;

pressure sensing means for sensing pressure within the patient'"'"''"'"'s stomach to signal an overpressure condition to stop said feed means, means for automatically stopping said feed means in response to said pressure sensing means sensing such overpressure condition, and means for delaying stoppage of said feed means until said pressure sensing means senses such overpressure condition for a predetermined period of time.

2. The improvement of claim 1 wherein said means for delaying stoppage of said feed means comprises delay means for delaying signalling of an overpressure condition until said pressure sensing means senses such overpressure condition for a predetermined period of time.

3. In an apparatus for feeding a solution to a patient'"'"''"'"'s stomach, said apparatus including tube means having tube opening means for positioning within a patient'"'"''"'"'s stomach and feed means connected to said tube means for feeding a solution through said tube and tube opening means, the improvement comprising;

pressure sensing means for sensing pressure within the patient'"'"''"'"'s stomach to signal an overpressure condition to stop said feed means, and aspirating means connected to said tube means for applying suction to aspirate patient'"'"''"'"'s stomach in response to said pressure sensing means sensing such overpressure condition.

4. The improvemeNt of claim 3 further including delay means for delaying signalling of such overpressure condition until said pressure sensing means senses such overpressure condition for a predetermined period of time.

5. The improvement of claim 3 wherein said pressure sensing means is connected for automatically stopping said feed means when such overpressure condition is sensed.

6. The improvement of claim 5 further including delay means for delaying stoppage of said feed means until said pressure sensing means senses such overpressure condition for a predetermined period of time.

7. The improvement of claim 5 further comprising means for automatically starting said aspirating means in response to said pressure sensing means sensing such overpressure condition as aforesaid.

8. The improvement of claim 7 further including delay means for delaying stoppage of said feed means and starting of said aspirating means until said pressure sensing means senses such overpressure condition for a predetermined period of time.

9. The improvement of claim 3 further including aspirating timing means for stopping operation of said aspirating means after a predetermined period of time, and irrigating feed means for feeding irrigating fluid through said tube and tube opening means to clear said tube and tube opening means of any foreign material upon stoppage of said aspirating means.

10. The improvement of claim 9 wherein said irrigating feed means pulses a small supply of irrigating fluid for a short period of time, and pressure checking means is provided for checking pressure within a patient'"'"''"'"'s stomach after operation of said irrigating feed means.

11. The improvement of claim 10 wherein said pressure checking means is connected automatically starting said feed means when such overpressure condition is not present.

12. The improvement of claim 10 wherein said pressure checking means is connected for automatically starting said aspirating means when such overpressure condition is present.

13. Apparatus for feeding or aspirating relative to a patient'"'"''"'"'s stomach comprising;

tube means having tube opening means for positioning in a patient'"'"''"'"'s stomach, feed means connected to said tube means for feeding a feeding solution through said tube and tube opening means, aspirating means connected to said tube means for applying suction to said tube means to aspirate a patient'"'"''"'"'s stomach through said tube means, and pressure sensing means for sensing pressure within a patient'"'"''"'"'s stomach to signal an overpressure condition to stop said feed means, and selective control means for selectively connecting either said feed means or said aspirating means for operation.

14. The apparatus of claim 13 further including means for automatically stopping said feed means when such overpressure condition is sensed and said selective control means is connected with said feed means, and means for automatically starting said aspirating means when such overpressure condition is sensed.

15. The apparatus of claim 13 further including timing means for timing operation of said aspirating means, and irrigating means for pulsing a supply of irrigating fluid through said tube and tube opening means to clear said tube and tube opening means of any foreign material upon stoppage of said aspirating means.

16. Apparatus for aspirating and irrigating a patient'"'"''"'"'s stomach comprising;

tube means having tube opening means for positioning within a patient'"'"''"'"'s stomach, aspirating means connected to said tube means for aspirating a patient'"'"''"'"'s stomach through said tube and tube opening means, and pressure sensing means for sensing pressure within a patient'"'"''"'"'s stomach to signal an overpressure condition to stop said feed means, and timing means connected to said aspirating means for timing operation of said aspirating means to stop operation of said aspirating means after a predetermined period of time, and irrigating means connected to said tube means for pulsing a supply of irrigating fluid through said tuBe and tube opening means to clear said tube and tube opening means of any foreign material upon stoppage of said aspirating means.

17. A method of supplying a solution to a patient'"'"''"'"'s stomach comprising;

feeding a solution to a patient'"'"''"'"'s stomach, sensing by mechanical means the pressure within the patient'"'"''"'"'s stomach to signal an overpressure condition, continuing to feed such solution to the patient'"'"''"'"'s stomach until such overpressure condition has been sensed for a predetermined period of time, and stopping by automatic means the feeding of such solution after such predetermined period of time.

18. A method of supplying a solution to a patient'"'"''"'"'s stomach comprising;

feeding a solution to a patient'"'"''"'"'s stomach, and sensing by mechanical means the pressure within the patient'"'"''"'"'s stomach to signal an overpressure condition and stop feeding by automatic means the solution when an overpressure condition exists, and applying a suction to aspirate the patient'"'"''"'"'s stomach upon sensing of such overpressure condition.

19. The method of claim 18 wherein the step of aspirating is carried out for a predetermined time, and is followed by the step of pulsing a small supply of irrigating fluid to the patient'"'"''"'"'s stomach.

20. The method of claim 18 further including the step of checking pressure within the patient'"'"''"'"'s stomach after aspirating, and subsequently either feeding a solution or aspirating depending upon whether the sensed pressure is a normal pressure condition or an overpressure condition.