CA2486880A1 - Gastric fluid control system - Google Patents
Gastric fluid control system Download PDFInfo
- Publication number
- CA2486880A1 CA2486880A1 CA002486880A CA2486880A CA2486880A1 CA 2486880 A1 CA2486880 A1 CA 2486880A1 CA 002486880 A CA002486880 A CA 002486880A CA 2486880 A CA2486880 A CA 2486880A CA 2486880 A1 CA2486880 A1 CA 2486880A1
- Authority
- CA
- Canada
- Prior art keywords
- gastric fluid
- stomach
- patient
- conductivity
- control system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio wavesÂ
- A61B5/053—Measuring electrical impedance or conductance of a portion of the body
- A61B5/0538—Measuring electrical impedance or conductance of a portion of the body invasively, e.g. using a catheter
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/71—Suction drainage systems
- A61M1/74—Suction control
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/71—Suction drainage systems
- A61M1/74—Suction control
- A61M1/743—Suction control by changing the cross-section of the line, e.g. flow regulating valves
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Hematology (AREA)
- Anesthesiology (AREA)
- Vascular Medicine (AREA)
- Biophysics (AREA)
- Surgery (AREA)
- Molecular Biology (AREA)
- Medical Informatics (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- Radiology & Medical Imaging (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Surgical Instruments (AREA)
Abstract
The invention relates to a system (and devices) for controlling the level of gastric fluid in the stomach of a patient. The object of the invention is to improve post-surgical patient care and recovery by improving the operational efficiency of the common vacuum system arrangement used in most hospitals to remove excess gastric fluid from the stomach of patients.
Description
k(kSCPiptlOn Teghnical Field The invention relates generally to the post-surgical care and recovery of patients that have undergone gastro esophageal surgery. Although but one embodiment of the present invention has been illustrated and described, it will be apparent to those skilled in the art that various changes and modifications may be made therein without departing from the spirit of the invention.
B,~~kground of the Invention It is common in the method of removing gastric fluid from the stomach of a patient, that the vacuum system used to accomplish this task is controlled by manually operating the associated vacuum valve in either a constant or fixed-intermittent mode. The net result is that the entire system operates independent of the actual amount of gastric fluid produced by the patient. In order to err on the side of safety, both of these valve settings allow much more gastric fluid flow than the stomach can actually produce and consequently, the overall system draws atmospheric air from the stomach, most of the time. This air is drawn in through the uppermost intake port of the nasogastric (NG) tube and thus renders the remainder of the lower intake ports inoperative. Also, once most of the debris or scum in the gastric fluid floats to the surface, this uppermost intake port soon becomes plugged making the entire system inoperative and inducing vibrations in the NG tube that can be felt directly by the patient. Unless this condition can be quickly rectified (by the nursing practitioner manually flushing the NG tube with saline solution), gastric fluids will build up leading to retching. This puts severe strains on the newly created joim(s) that make good the surgical incision(s), breaking their seal and thus allowing toxic gastric fluid to leak out of the stomach into the interstitial space of the body. This condition is commonly known as gastro esophageal leakage and is potentially life threatening.
Summ~rY of the Invention I have found that these di~cu~ities can be overcome by creating a system (and devices) that can detect the level of gastric fluid in the stomach of a patient and, utilizing the information thus obtained, enable a controlled and more efficient "on demand"
operation of the vacuum based suctioning mechanisms. The system operates on contact with the gastric fluid ua conductivity measuring devise whereby, the vacuum system is turned "on" when the gastric fluid level rises sufficiently and a predetermined "high" value of conductivity is achieved. The vacuum system remains on until the gastric fluid level drops and a predetermined 'qow" value of conductivity is achieved at which point the vacuum system is turned "off'. The intake ports of the NG tube are located a sufficient distance below the low/off level to ensure that they are continuously operating in a submerged condition below the free atmospheric surface of the gastric fluid, wherever it may be.
B,~~kground of the Invention It is common in the method of removing gastric fluid from the stomach of a patient, that the vacuum system used to accomplish this task is controlled by manually operating the associated vacuum valve in either a constant or fixed-intermittent mode. The net result is that the entire system operates independent of the actual amount of gastric fluid produced by the patient. In order to err on the side of safety, both of these valve settings allow much more gastric fluid flow than the stomach can actually produce and consequently, the overall system draws atmospheric air from the stomach, most of the time. This air is drawn in through the uppermost intake port of the nasogastric (NG) tube and thus renders the remainder of the lower intake ports inoperative. Also, once most of the debris or scum in the gastric fluid floats to the surface, this uppermost intake port soon becomes plugged making the entire system inoperative and inducing vibrations in the NG tube that can be felt directly by the patient. Unless this condition can be quickly rectified (by the nursing practitioner manually flushing the NG tube with saline solution), gastric fluids will build up leading to retching. This puts severe strains on the newly created joim(s) that make good the surgical incision(s), breaking their seal and thus allowing toxic gastric fluid to leak out of the stomach into the interstitial space of the body. This condition is commonly known as gastro esophageal leakage and is potentially life threatening.
Summ~rY of the Invention I have found that these di~cu~ities can be overcome by creating a system (and devices) that can detect the level of gastric fluid in the stomach of a patient and, utilizing the information thus obtained, enable a controlled and more efficient "on demand"
operation of the vacuum based suctioning mechanisms. The system operates on contact with the gastric fluid ua conductivity measuring devise whereby, the vacuum system is turned "on" when the gastric fluid level rises sufficiently and a predetermined "high" value of conductivity is achieved. The vacuum system remains on until the gastric fluid level drops and a predetermined 'qow" value of conductivity is achieved at which point the vacuum system is turned "off'. The intake ports of the NG tube are located a sufficient distance below the low/off level to ensure that they are continuously operating in a submerged condition below the free atmospheric surface of the gastric fluid, wherever it may be.
Brief Descri trop of the Drawings Figure 1 is a section view showing a typical general arrangement of the present invention.
Figure 2 is an expanded view of a portion of the system of Figure 1.
Detailed Description Referring to Figures 1 and 2, it can be seen that a typical g~eral arrangement is disclosed.
A nasogastric tube 1 is inserted in a patient 2 whereby the bolus (intake) end is placed in the stomach 3 and the distal (discharge) end is connected to vacuum chamber 4 having associated piping 5, pressure gauge 6 and motorized vacuum valve 7. As the gastric fluid 8 rises in the stomach 3, it soon comes into contact with tile exposed portions of conductors 9 & 10 thus allowing the low voltage power supply 11 to energize a primary circuit containing a conductivity measuring device 12. As the level of the gastric fluid 8 continues to rise, the conductivity increases and once a predetermined "high"
value has been reached, a signal is set to a processor/relay 13 which energizes the secondary circuit, opens the motorized vacuum valve 7 and thus enables suctioning of the gastric fluid 8 through the intake ports 14 in the customary manner. The system continues to operate until such time as the level of the gastric fluid 8 drops sufficiently to generate a predetermined 'qow" value of conducriviTy at which point a second signal is set to the processor/relay 13, tripping the secondary circuit and the system shuts down.
The intake ports 14 are located a sufficient distance below the low/offlevel such that they remain submerged in the gastric fluid 8 at all material times.
Figure 2 is an expanded view of a portion of the system of Figure 1.
Detailed Description Referring to Figures 1 and 2, it can be seen that a typical g~eral arrangement is disclosed.
A nasogastric tube 1 is inserted in a patient 2 whereby the bolus (intake) end is placed in the stomach 3 and the distal (discharge) end is connected to vacuum chamber 4 having associated piping 5, pressure gauge 6 and motorized vacuum valve 7. As the gastric fluid 8 rises in the stomach 3, it soon comes into contact with tile exposed portions of conductors 9 & 10 thus allowing the low voltage power supply 11 to energize a primary circuit containing a conductivity measuring device 12. As the level of the gastric fluid 8 continues to rise, the conductivity increases and once a predetermined "high"
value has been reached, a signal is set to a processor/relay 13 which energizes the secondary circuit, opens the motorized vacuum valve 7 and thus enables suctioning of the gastric fluid 8 through the intake ports 14 in the customary manner. The system continues to operate until such time as the level of the gastric fluid 8 drops sufficiently to generate a predetermined 'qow" value of conducriviTy at which point a second signal is set to the processor/relay 13, tripping the secondary circuit and the system shuts down.
The intake ports 14 are located a sufficient distance below the low/offlevel such that they remain submerged in the gastric fluid 8 at all material times.
Claims (2)
1. An improvement in a system of removing excess gastric fluid from the stomach of a patient whereby the gastric fluid itself completes a circuit enabling a conductivity measuring device, at predetermined high or low values of conductivity, to send signals to a processor/relay opening or closing a motorized vacuum valve that controls the suctioning of gastric fluid through a common nasogastric tube.
2. The system of claim 1 wherein all of the intake ports of the nasogastric tube are located a sufficient distance below the low operating level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002486880A CA2486880A1 (en) | 2004-12-03 | 2004-12-03 | Gastric fluid control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002486880A CA2486880A1 (en) | 2004-12-03 | 2004-12-03 | Gastric fluid control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2486880A1 true CA2486880A1 (en) | 2006-06-03 |
Family
ID=36565870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002486880A Abandoned CA2486880A1 (en) | 2004-12-03 | 2004-12-03 | Gastric fluid control system |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2486880A1 (en) |
-
2004
- 2004-12-03 CA CA002486880A patent/CA2486880A1/en not_active Abandoned
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1859935B (en) | Drainage apparatus and method | |
| US7270647B2 (en) | Apparatus for vacuum-assisted irrigation and drainage of a body cavity | |
| US5512045A (en) | Surgical decompression and irrigation apparatus and method | |
| EP2305343A2 (en) | Device for controlling and monitoring vacuum pressure in systems for the suction of biological secretions | |
| GB2220357A (en) | Medico-surgical containers | |
| CN106963998B (en) | Device capable of automatically controlling diversion quantity | |
| US4469484A (en) | Surgical drainage device with automatic negative pressure relief system | |
| CN105288828A (en) | ICU rapid drainage device | |
| CA2486880A1 (en) | Gastric fluid control system | |
| EP3281594A1 (en) | Leakage protection system, pressure balancing system, and precipitator with valve function for ablation applications | |
| KR20160115619A (en) | Indirect suction type vacuum drainage system | |
| US20210093754A1 (en) | Mediastinal drainage system | |
| CN215780312U (en) | Novel uropoiesis surgery washes monitoring and adjustable negative pressure suction device | |
| JP2001140499A (en) | Floating body type seismic isolation structure | |
| KR20160105709A (en) | Indirect suction type portable aspirator | |
| CN209645524U (en) | A kind of gastrointestinal surgery gastrointestinal decompression | |
| JP5629155B2 (en) | Negative pressure therapy device | |
| CN214807228U (en) | Gastric retention extraction device | |
| CN220442957U (en) | Drainage device for nursing | |
| CN213099843U (en) | Ware is accomodate in drainage of nursing hydrops | |
| CN215386742U (en) | Intelligent ventilation catheter with cleaning function | |
| CN214807777U (en) | Visible water sac pressure sterile catheter | |
| CN215024754U (en) | Pressure-reducing drainage tube | |
| CN107537089A (en) | Intelligent digestive juice collection and refluxing device | |
| CN217660866U (en) | Gastroenterology is with intestines and stomach decompression nursing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |