Artificial Sphincter and Intragastric Suspended Balloon
A system of medical devices implantable in the human body using transabdominal gastroscopy surgery to repair failing sphincters and to prevent obesity. A stainless steel non-magnetic spring covered with silicon or other long-term tissue friendly plastic can be installed in place of a natural sphincter by tunneling through a non-functional natural sphincter and pulling the artificial sphincter into the tunnel to form a ring. The device can be tied on the end with suture to form a permanent structure. Without pressure, the device will be continuously closed; however, it will open under natural pressure on it just as a natural sphincter. A intragastric suspended balloon can be sutured into the stomach to cut appetite. The balloon can be roughly the shape of a pepper and take up room in the stomach without closing it off.
1. Field of the Invention
The present invention relates to medical devices for the human stomach and other passages and more particularly an artificial sphincter and a suspended balloon.
2. Description of the Problem
A sphincter is a anatomical structure that typically partially or totally closes off a passage in the human body but opens to allow passages of substances. In particular, there is a sphincter where the esophagus enters the stomach, a sphincter where the lower end of the stomach enters the small intestine, a sphincter to the lower end of the colon (anus) and a sphincter below the urinary bladder.
Medical conditions can cause any of these sphincters to partially or totally fail. When the sphincter between the esophagus and stomach fails, highly acid liquid and material can reflux back up into the esophagus causing pain and possible damage to the esophagus. When the pyloric sphincter between the stomach and the small intestine fails, food material enters the small intestine before it is in the proper state of digestion. When the anus fails or partially fails, the patient needs to use bags and other means to control unwanted excretion, and failure or weakness of the urinary sphincter causes incontinence.
It would be advantageous to have an artificial sphincter that could be implanted in the proper location by a general surgeon using transabdominal surgery or gastroscopy assisted by conventional gastroscopy or surgery.
Obesity is a persistent problem in the U.S. and other developed countries. In some cases, it can be controlled by dieting; however, in other cases more invasive medical procedures are needed.
For cases where obesity is caused mainly by overeating, It would be advantageous to have a medical device that could be implanted in the human stomach that would take up space and cause the patient to feel full and stop eating sooner.
SUMMARY OF THE INVENTIONThe present invention relates to a system of medical devices that can be implanted in the human body using transabdominal endoscopic surgery to repair failing sphincters and to prevent obesity.
A stainless steel or other medical grade metal or polymer non-magnetic spring covered with silicon or other long-term tissue friendly plastic tubing can be installed in place of a natural sphincter by tunneling through a non-functional natural sphincter and pulling the artificial sphincter into the tunnel to form a ring. The device can be tied on the end with suture to form a permanent structure. Without pressure, the device will be continuously closed; however, it will open under natural pressure on it just as a natural sphincter.
A intragastric suspended balloon can be sutured into the stomach to cut appetite. The balloon can be roughly the shape of a pepper and take up room in the stomach without closing it off.
Attention is now directed to several drawings that illustrate features of the present invention:
Several drawings and illustrations have been presented to aid in understanding the present invention. The scope of the present invention is not limited to what is shown in the figures.
DESCRIPTION OF THE PREFERRED EMBODIMENTThe present invention relates to a system of devices that can be installed using endoscopic surgery. In particular, an artificial sphincter can be installed into any natural sphincter, and an intragastric suspended balloon can be installed in the stomach.
The spring 6 can be made of non-magnetic stainless steel or other medical grade metal or plastic that will expand from adequate pressure from above or from below. This allows food to enter the stomach from the esophagus during normal eating and for food to exit the stomach during vomiting. The spring 6 is placed in the plastic tubing 5.
After the artificial sphincter is placed into the tunnel made by the surgeon, non-absorbable thread 4 should be tied form a tight ring. Embodiments of the invention can also be supplied with the thread pre-installed.
The implantation procedure can be performed by a general surgeon using transabdominal gastroscopy with the assistance of conventional gastroscopy if needed. The surgeon first performs tunneling through the non-functional natural sphincter and then pulls the artificial sphincter into the tunnel. The device can be threaded (or supplied with threads), pulled into a ring, and tied off.
Installation of the balloon should be performed by a general surgeon with transabdominal gastroscopy with the assistance of conventional gastroscopy if necessary. The balloon has an inflation port 21 that can be inflated through the esophagus or through transabdominal gastroscopy after suturing. The balloon is typically inflated with saline liquid. Any inflating technique that causes the balloon to maintain its shape is within the scope of the present invention.
Evectional removal can be performed by deflating the balloon, cutting the sutures and pulling the balloon out via the esophagus.
Several descriptions and illustrations have been presented to aid in understanding the present invention. One with skill in the art will realize that numerous changes, variations and additions may be made without departing from the spirit of the invention. Each of these changes and variations is within the scope of the present invention.
Claims
1. A method of repairing a non-functional natural sphincter comprising:
- using transabdominal gastroscopy, creating a tunnel within said natural sphincter;
- pulling a device with a spring contained in polymer tubing into said tunnel and completely around said sphincter;
- tying off non-absorbable suture thread attached to a first and last coil of said spring and to a first and last end of said tubing to form an approximate ring, wherein said device functions as an artificial sphincter.
2. The method of claim 1 wherein said natural sphincter is at the gastro-esophageal junction.
3. The method of claim 1 wherein said natural sphincter is the pyloric sphincter.
4. The method of claim 1 wherein said natural sphincter is the urinary sphincter.
5. The method of claim 1 wherein said natural sphincter is the anus.
6. The method of claim 1 wherein said polymer tubing is silicon rubber tubing.
7. The method of claim 1 wherein said spring is stainless steel.
8. The method of claim 6 wherein said spring is medical grade metal or plastic.
9. An implantable artificial sphincter comprising:
- a spring contained in a tight-fitting polymer tube, said tube having a continuous, approximately cylindrical wall of approximately fixed diameter, said spring contained in said tube adapted to be placed into a tunnel formed in a non-functioning natural sphincter, said spring, when implanted, forming a ring having a size equivalent to said natural sphincter;
- a suture thread pre-tied to a first and last coil of said spring and to a first and last end of said polymer tube.
10. (canceled)
11. The artificial sphincter of claim 9 wherein said spring is stainless steel.
12. The artificial sphincter of claim 9 wherein said polymer tube is silicon rubber.
13. The artificial sphincter of claim 11 wherein said polymer tube is silicon rubber.
14. The artificial sphincter of claim 9 wherein said non-functioning natural sphincter is one of. gastro-esophageal, pyloric, urinary or anal.
15. An implantable artificial sphincter comprising:
- a stainless steel spring contained in a continuous tight-fitting silicon rubber tube adapted to be placed into a tunnel formed in a non-functioning gastro-esophageal sphincter, said spring, when implanted, forming a ring having a size equivalent to said natural sphincter.
16. The implantable artificial sphincter of claim 15 further comprising suture pre-attached to a first and last coil of said spring and to a first and last end of said tube.
Type: Application
Filed: Sep 23, 2012
Publication Date: Mar 27, 2014
Inventor: Zarija Djurovic (Chicago, IL)
Application Number: 13/624,948