CA2607090A1 - Method for distending the abdominal cavity with a liquid - Google Patents
Method for distending the abdominal cavity with a liquid Download PDFInfo
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- CA2607090A1 CA2607090A1 CA002607090A CA2607090A CA2607090A1 CA 2607090 A1 CA2607090 A1 CA 2607090A1 CA 002607090 A CA002607090 A CA 002607090A CA 2607090 A CA2607090 A CA 2607090A CA 2607090 A1 CA2607090 A1 CA 2607090A1
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- abdominal cavity
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Abstract
A transluminal procedure that creates an incision in a gastrointestinal wall, exposes an abdominal cavity to a fluid injection tube, and injects fluid into the abdominal cavity so as to float the organs within the cavity and retract the abdominal tissue.
Description
TITLE OF INVENTION
METHOD FOR DISTENDING THE ABDOMINAL CAVITY WITH A LIQUID
CROSS REFERENCE TO RELATED APPLICATIONS
[0001] The present application claims the benefit under 35 U.S.C.
119(e) of the U.S. Provisional Patent Application Serial No. 60/829,052, filed on October 11, 2006, the content of which is incorporated herein by reference.
FIELD OF THE INVENTION
METHOD FOR DISTENDING THE ABDOMINAL CAVITY WITH A LIQUID
CROSS REFERENCE TO RELATED APPLICATIONS
[0001] The present application claims the benefit under 35 U.S.C.
119(e) of the U.S. Provisional Patent Application Serial No. 60/829,052, filed on October 11, 2006, the content of which is incorporated herein by reference.
FIELD OF THE INVENTION
[0002] The present invention relates to distending the abdominal cavity during laparoscopy, and, more particularly, to separating the abdominal wall from the organs and separating organs from each other within the abdominal cavity with a liquid.
BACKGROUND OF THE INVENTION
BACKGROUND OF THE INVENTION
[0003) Laparoscopy is a surgical method typically performed to examine the abdominal or pelvic organs. This method utilizes a laparoscope to investigate or perform surgery within this region. During laparoscopy a surgeon will make small incisions into the abdomen to gain access to the abdominal cavity. One of these incisions will be made just below the navel. A needle connected to a carbon dioxide, nitrous oxide, or other gas source is inserted into this incision. The gas is pumped into the abdomen and enables the abdominal wall to be lifted away from the organs. Separating the abdomen from the organs makes it easier to insert the laparoscope into the abdominal cavity and examine the organs. After separation, the laparoscope can be inserted into a second cut in the abdomen. Once the investigation or surgery is completed, the instruments are removed and most of the insufflated gas is able to escape.
However, the removal of the gas is incomplete and some gas will be trapped and cause residual pain for a period after the surgery. The pain will subside once the gas is absorbed into the lining of the abdomen and eliminated via the lungs.
However, the removal of the gas is incomplete and some gas will be trapped and cause residual pain for a period after the surgery. The pain will subside once the gas is absorbed into the lining of the abdomen and eliminated via the lungs.
[0004] The application of gas pressure during laparoscopy is only able to separate the abdominal wall from the abdominal organs. The introduction of gas is unable to cause separation between the organs. Such a factor requires mechanical manipulation of the organs in order to inspect them. This can be acceptable when laparoscopy is performed via the abdominal wall because the surgeon can utilize multiple points of access to gain the necessary leverage.
The drawback of gaining access through the abdominal wall is that scars will be left in the stomach region.
[ooo5] To address this issue, new procedures have been developed to provide for laparoscopy to inspect the abdominal cavity without going through the abdominal wall. Kalloo et al. (U.S. Publication No. 2005/0101837), which is incorporated herein by reference, describes a transluminal procedure in which an overtube is inserted through a natural body orifice such as the esophagus or the colon and guided by an endoscope to the gastrointestinal tract. Once the desired location is achieved within the stomach, a knife makes a small incision in the stomach wall to expose the abdominal cavity. This hole is dilated and the overtube is inserted through the dilated hole. The overtube is then anchored to the wall of the stomach with balloons that are inflated on both sides of the wall.
Subsequently the abdominal cavity is insufflated with a gas. This enables the abdominal cavity to distend and separate the abdominal tissue from the organs.
Wilk '536 Patent (U.S. Patent No. 5,297,536) and Wilk '131 Patent (U.S. Patent No. 5,458,131), which are incorporated herein by reference, also describe transluminal procedures in which the abdominal cavity is insufflated with a gas.
[ooos1 While this method is beneficial in that it avoids access to the abdominal cavity through the abdominal wall, it also has deficiencies. As mentioned before, pressurized gas is only capable of separating the abdominal wall from the organs. Further, this method only allows access to the cavity through the hole created by the overtube. Thus, a surgeon is only given limited access in which to manipulate the organs for inspection. The method does not provide for a second position to gain leverage and manipulate an organ. If the surgeon wants to inspect another aspect of the relevant organ or wants to inspect an organ in another location, the surgeon will need to withdraw the overtube, seal the incision, move to another location and create a new incision.
This increases the time and complexity of inspecting the abdominal cavity. It also increases the risk of injury.
[0007] What is needed is a method that allows for improved visualization of the abdominal cavity utilizing a transluminal laparoscopy. Such a method would enhance the ability of transluminal laparoscopy to effectively inspect necessary organs and reduce the risk associated with making multiple incisions in the gastrointestinal tract.
SUMMARY OF THE INVENTION
[0008] These and other objects are achieved by providing a transiuminal laparoscopic method that injects a liquid such as saline or water into the abdominal cavity.
[0009] In one advantageous embodiment of the present invention, a transiuminal laparoscopy is performed by creating an incision in a gastrointestinal wall, exposing an abdominal cavity to a liquid injection tube, and injecting a liquid into the cavity.
[ooolo] The incision in the gastrointestinal wall can be created by inserting a distal end of a tubular member through a natural body orifice of a mammal to the digestive tract of the mammal and utilizing an endoscopic surgical tool such as a knife to cut the incision in the wall.
[00011] The abdominal cavity can be exposed to the liquid injection tube by disposing the liquid injection tube in the tubular member and advancing the distal end of the tubular member through the incision in the gastrointestinal wall.
A liquid is injected into the abdominal cavity from the distal end of the fluid injection tube causing the organs in the abdominal cavity to float and retract the abdominal tissue from the organs.
[00012] It is another aspect of the invention for the fluid injection tube to continue to inject pressurized liquid into the abdominal cavity while a surgical task is performed within the abdominal cavity with an endoscopic surgical tool disposed in the tubular member. As fluid is injected into the abdominal cavity, a fluid irrigation port can be provided in the tubular member to simultaneously remove fluid and maintain visibility within the abdominal cavity. The rate of fluid injection and irrigation should be set so that a baseline liquid pressure is maintained in the abdominal cavity. The baseline liquid pressure can be provided by a pressure limited pump coupled to the liquid injection tube.
[00013] It is yet another aspect of the invention to cease the injection of liquid into the abdominal cavity and irrigate the remaining liquid in the cavity through the irrigation port when the endoscopic surgical task is completed.
Any residual liquid can be removed by aspirating the liquid through the incision.
The drawback of gaining access through the abdominal wall is that scars will be left in the stomach region.
[ooo5] To address this issue, new procedures have been developed to provide for laparoscopy to inspect the abdominal cavity without going through the abdominal wall. Kalloo et al. (U.S. Publication No. 2005/0101837), which is incorporated herein by reference, describes a transluminal procedure in which an overtube is inserted through a natural body orifice such as the esophagus or the colon and guided by an endoscope to the gastrointestinal tract. Once the desired location is achieved within the stomach, a knife makes a small incision in the stomach wall to expose the abdominal cavity. This hole is dilated and the overtube is inserted through the dilated hole. The overtube is then anchored to the wall of the stomach with balloons that are inflated on both sides of the wall.
Subsequently the abdominal cavity is insufflated with a gas. This enables the abdominal cavity to distend and separate the abdominal tissue from the organs.
Wilk '536 Patent (U.S. Patent No. 5,297,536) and Wilk '131 Patent (U.S. Patent No. 5,458,131), which are incorporated herein by reference, also describe transluminal procedures in which the abdominal cavity is insufflated with a gas.
[ooos1 While this method is beneficial in that it avoids access to the abdominal cavity through the abdominal wall, it also has deficiencies. As mentioned before, pressurized gas is only capable of separating the abdominal wall from the organs. Further, this method only allows access to the cavity through the hole created by the overtube. Thus, a surgeon is only given limited access in which to manipulate the organs for inspection. The method does not provide for a second position to gain leverage and manipulate an organ. If the surgeon wants to inspect another aspect of the relevant organ or wants to inspect an organ in another location, the surgeon will need to withdraw the overtube, seal the incision, move to another location and create a new incision.
This increases the time and complexity of inspecting the abdominal cavity. It also increases the risk of injury.
[0007] What is needed is a method that allows for improved visualization of the abdominal cavity utilizing a transluminal laparoscopy. Such a method would enhance the ability of transluminal laparoscopy to effectively inspect necessary organs and reduce the risk associated with making multiple incisions in the gastrointestinal tract.
SUMMARY OF THE INVENTION
[0008] These and other objects are achieved by providing a transiuminal laparoscopic method that injects a liquid such as saline or water into the abdominal cavity.
[0009] In one advantageous embodiment of the present invention, a transiuminal laparoscopy is performed by creating an incision in a gastrointestinal wall, exposing an abdominal cavity to a liquid injection tube, and injecting a liquid into the cavity.
[ooolo] The incision in the gastrointestinal wall can be created by inserting a distal end of a tubular member through a natural body orifice of a mammal to the digestive tract of the mammal and utilizing an endoscopic surgical tool such as a knife to cut the incision in the wall.
[00011] The abdominal cavity can be exposed to the liquid injection tube by disposing the liquid injection tube in the tubular member and advancing the distal end of the tubular member through the incision in the gastrointestinal wall.
A liquid is injected into the abdominal cavity from the distal end of the fluid injection tube causing the organs in the abdominal cavity to float and retract the abdominal tissue from the organs.
[00012] It is another aspect of the invention for the fluid injection tube to continue to inject pressurized liquid into the abdominal cavity while a surgical task is performed within the abdominal cavity with an endoscopic surgical tool disposed in the tubular member. As fluid is injected into the abdominal cavity, a fluid irrigation port can be provided in the tubular member to simultaneously remove fluid and maintain visibility within the abdominal cavity. The rate of fluid injection and irrigation should be set so that a baseline liquid pressure is maintained in the abdominal cavity. The baseline liquid pressure can be provided by a pressure limited pump coupled to the liquid injection tube.
[00013] It is yet another aspect of the invention to cease the injection of liquid into the abdominal cavity and irrigate the remaining liquid in the cavity through the irrigation port when the endoscopic surgical task is completed.
Any residual liquid can be removed by aspirating the liquid through the incision.
[00o14] Other objects of the invention and its particular features and advantages will become more apparent from consideration of the following description.
DETAILED DESCRIPTION OF THE INVENTION
[oool5] The present invention improves the transiuminal procedure described above. A tubular member is introduced into the gastrointestinal tract guided by an endoscope. Preferably the endoscope is disposed within the tubular member. At the desired location within the gastrointestinal tract an endoscopic surgical tool such as a knife is used to cut an incision in the wall of the tract. The incision can be cut to a size that corresponds to the diameter of the insertion tube or dilated with a balloon that is inserted in to the incision and expanded by a pressurized source such as a gas. The distal end of the tubular member is inserted through the incision into the abdominal cavity. A liquid injection tube is provided within the tubular member and exposed to the abdominal cavity. A pressurized liquid such a saline, water or other liquid is ejected from the distal end of the liquid injection tube into the abdominal cavity.
[00016] The injection of pressurized liquid is maintained such that the abdomen becomes distended by the liquid. This enables the abdominal tissue to become separated from the organs. The presence of the liquid also enables the organs to float within the cavity due to their buoyancy relative to the liquid and separate from each other.
[oo017] Various endoscopic surgical tools known to those skilled in the endoscopic art can be disposed within the tubular member. These surgical tools are introduced into the abdominal cavity through the distal end of the tubular member in order to perform a endoscopic surgical task. An endoscopic surgical task includes, but is not limited to, visually inspecting organs or tissues in the abdominal cavity with an endoscope, employing a cauterizing endoscopic surgical tool in the abdominal cavity, dissecting tissue in the abdominal cavity, and removing an organ in the abdominal cavity. Endoscopic surgical tools used to perform an endoscopic surgical task include, but are not limited to, endoscopes, cauterizing tools, lasers, clippers, cutters, knifes and the like.
[00m] The presence of the liquid also increases the ability for debris such as blood and loose tissue to obstruct the visibility within the abdominal cavity. As a result, a liquid irrigation port can be disposed within the tubular member. The liquid irrigation port enables a continuous flow of liquid from the liquid injection tube, into the cavity, and out the irrigation port. This improves the clarity of the liquid in the cavity and assists in the inspection of the relevant abdominal organs.
[oooTS] It is beneficial if a baseline pressure is maintained within the abdominal cavity by a pressure limited pump. At such a pressure a certain degree of distention and separation can be maintained. The pressure limited pump assures that a minimum pressure is achieved within the cavity and facilitates a constant influx and outfluxes of liquid through the cavity.
[000201 Once the endoscopic surgical task is complete, the pressure limited pump is disengaged and the liquid injection tube ceases the injection of pressurized liquid. The liquid irrigation tube is permitted to draw the liquid within the abdominal cavity down and remove a significant portion of the distending liquid. Any remaining liquid is removed via aspiration. This can be done through the incision in the gastro intestinal tract. If necessary, manual pressure can be applied to the abdominal wall to encourage aspiration. Once the procedure is complete, the incision can be sealed by suture and the tubular member removed from the gastrointestinal tract.
[00021] This method provides numerous benefits towards utilizing laparoscopy to inspect the abdominal cavity. Transluminal laparoscopy enables laparoscopic procedures to be performed without going through the abdominal wall. The presence of liquid in the abdominal cavity enables both the abdominal tissue and the organs within the abdomen to separate. This enables an incision that normally provides a limited view of a given area greater access to organs within the cavity. The buoyancy of the organs also reduces the need to manipulate them in order inspect a particular area. This reduces the possibility of damage to the organ. The presence of residual liquid within the abdominal cavity further provides the benefit of being less painful for the patient and more readily absorbed into the surrounding tissue.
[00022] Liquids such as saline have been used in other medical procedures. For instance, Meyer (U.S. Patent No. 4,998,527) discloses an endoscopic resecting apparatus for use in the abdominal cavity that utilizes a liquid such as saline to remove debris away from the end of the endoscope to maintain clear visualization. Meyer discloses that the apparatus distends the cavity using a gas insufflator.
[00023] The use of liquids such as saline or water to distend portions of the body has been recognized in limited applications. However, the use of saline or water to distend the abdominal cavity during laparoscopy is not recognized as a useful or beneficial method. This skepticism is demonstrated in Goble (U.S.
Patent No. 6,923,803). Goble discloses that it is typical during laparoscopic surgery to perform gaseous or mechanical distension; however a liquid may be used to distend low volume body cavities. To address the perceived limited application of liquid distension, Goble discloses a method for performing electrosurgery that forms artificial cavities and distends those artificial cavities.
Goldrath (U.S. Patent No. 5,242,390), Johnson et al. (U.S. Patent No.
5,437,660) and Sutter, Jr. et al. (U.S. Patent No. 4,878,894) provide examples of using saline to distend low volume cavities. Goldrath and Johnson et al. disclose methods for coagulating endometrial tissue of the uterus that utilize the step of distending the uterine cavity by injecting saline in to the uterine cavity with a tool such as a hysteroscope. Sutter, Jr. et al. discloses that saline insufflation is used in arthroscopy to distend a joint for inspection.
[00024) This skepticism is further demonstrated in Brosens et al. (U.S.
Patent No. 6,156,006), which discloses a method for performing minihydroculdoscopy. The method disclosed in Brosens et al. utilizes saline to distend the Douglas cavity during culdoscopy. Brosens et al. states that the benefit of this method is that it enables the use of hydroflotation to inspect pelvic organs, which was impracticable during diagnostic laparoscopy.
[0002s] The use of liquids to distend the abdominal cavity during traditional laparoscopic procedures through the abdominal wall is generally considered disadvantageous and not appreciated as beneficial. The method described above provides a novel approach for performing transiuminal laparoscopy in which a liquid is advantageously used to distend the abdominal cavity causing separation of the abdominal wall and between the organs within the cavity. This method provides for a unique function for liquids such as saline or water within the abdominal cavity during laparoscopy that has not been previously recognized or utilized.
[00026) Although the invention has been described with reference to a particular arrangement of steps, parts, features, and the like, these are not intended to exhaust all possible arrangements, steps or features, and indeed many modifications and variations will be ascertainable to those of skill in the art.
DETAILED DESCRIPTION OF THE INVENTION
[oool5] The present invention improves the transiuminal procedure described above. A tubular member is introduced into the gastrointestinal tract guided by an endoscope. Preferably the endoscope is disposed within the tubular member. At the desired location within the gastrointestinal tract an endoscopic surgical tool such as a knife is used to cut an incision in the wall of the tract. The incision can be cut to a size that corresponds to the diameter of the insertion tube or dilated with a balloon that is inserted in to the incision and expanded by a pressurized source such as a gas. The distal end of the tubular member is inserted through the incision into the abdominal cavity. A liquid injection tube is provided within the tubular member and exposed to the abdominal cavity. A pressurized liquid such a saline, water or other liquid is ejected from the distal end of the liquid injection tube into the abdominal cavity.
[00016] The injection of pressurized liquid is maintained such that the abdomen becomes distended by the liquid. This enables the abdominal tissue to become separated from the organs. The presence of the liquid also enables the organs to float within the cavity due to their buoyancy relative to the liquid and separate from each other.
[oo017] Various endoscopic surgical tools known to those skilled in the endoscopic art can be disposed within the tubular member. These surgical tools are introduced into the abdominal cavity through the distal end of the tubular member in order to perform a endoscopic surgical task. An endoscopic surgical task includes, but is not limited to, visually inspecting organs or tissues in the abdominal cavity with an endoscope, employing a cauterizing endoscopic surgical tool in the abdominal cavity, dissecting tissue in the abdominal cavity, and removing an organ in the abdominal cavity. Endoscopic surgical tools used to perform an endoscopic surgical task include, but are not limited to, endoscopes, cauterizing tools, lasers, clippers, cutters, knifes and the like.
[00m] The presence of the liquid also increases the ability for debris such as blood and loose tissue to obstruct the visibility within the abdominal cavity. As a result, a liquid irrigation port can be disposed within the tubular member. The liquid irrigation port enables a continuous flow of liquid from the liquid injection tube, into the cavity, and out the irrigation port. This improves the clarity of the liquid in the cavity and assists in the inspection of the relevant abdominal organs.
[oooTS] It is beneficial if a baseline pressure is maintained within the abdominal cavity by a pressure limited pump. At such a pressure a certain degree of distention and separation can be maintained. The pressure limited pump assures that a minimum pressure is achieved within the cavity and facilitates a constant influx and outfluxes of liquid through the cavity.
[000201 Once the endoscopic surgical task is complete, the pressure limited pump is disengaged and the liquid injection tube ceases the injection of pressurized liquid. The liquid irrigation tube is permitted to draw the liquid within the abdominal cavity down and remove a significant portion of the distending liquid. Any remaining liquid is removed via aspiration. This can be done through the incision in the gastro intestinal tract. If necessary, manual pressure can be applied to the abdominal wall to encourage aspiration. Once the procedure is complete, the incision can be sealed by suture and the tubular member removed from the gastrointestinal tract.
[00021] This method provides numerous benefits towards utilizing laparoscopy to inspect the abdominal cavity. Transluminal laparoscopy enables laparoscopic procedures to be performed without going through the abdominal wall. The presence of liquid in the abdominal cavity enables both the abdominal tissue and the organs within the abdomen to separate. This enables an incision that normally provides a limited view of a given area greater access to organs within the cavity. The buoyancy of the organs also reduces the need to manipulate them in order inspect a particular area. This reduces the possibility of damage to the organ. The presence of residual liquid within the abdominal cavity further provides the benefit of being less painful for the patient and more readily absorbed into the surrounding tissue.
[00022] Liquids such as saline have been used in other medical procedures. For instance, Meyer (U.S. Patent No. 4,998,527) discloses an endoscopic resecting apparatus for use in the abdominal cavity that utilizes a liquid such as saline to remove debris away from the end of the endoscope to maintain clear visualization. Meyer discloses that the apparatus distends the cavity using a gas insufflator.
[00023] The use of liquids such as saline or water to distend portions of the body has been recognized in limited applications. However, the use of saline or water to distend the abdominal cavity during laparoscopy is not recognized as a useful or beneficial method. This skepticism is demonstrated in Goble (U.S.
Patent No. 6,923,803). Goble discloses that it is typical during laparoscopic surgery to perform gaseous or mechanical distension; however a liquid may be used to distend low volume body cavities. To address the perceived limited application of liquid distension, Goble discloses a method for performing electrosurgery that forms artificial cavities and distends those artificial cavities.
Goldrath (U.S. Patent No. 5,242,390), Johnson et al. (U.S. Patent No.
5,437,660) and Sutter, Jr. et al. (U.S. Patent No. 4,878,894) provide examples of using saline to distend low volume cavities. Goldrath and Johnson et al. disclose methods for coagulating endometrial tissue of the uterus that utilize the step of distending the uterine cavity by injecting saline in to the uterine cavity with a tool such as a hysteroscope. Sutter, Jr. et al. discloses that saline insufflation is used in arthroscopy to distend a joint for inspection.
[00024) This skepticism is further demonstrated in Brosens et al. (U.S.
Patent No. 6,156,006), which discloses a method for performing minihydroculdoscopy. The method disclosed in Brosens et al. utilizes saline to distend the Douglas cavity during culdoscopy. Brosens et al. states that the benefit of this method is that it enables the use of hydroflotation to inspect pelvic organs, which was impracticable during diagnostic laparoscopy.
[0002s] The use of liquids to distend the abdominal cavity during traditional laparoscopic procedures through the abdominal wall is generally considered disadvantageous and not appreciated as beneficial. The method described above provides a novel approach for performing transiuminal laparoscopy in which a liquid is advantageously used to distend the abdominal cavity causing separation of the abdominal wall and between the organs within the cavity. This method provides for a unique function for liquids such as saline or water within the abdominal cavity during laparoscopy that has not been previously recognized or utilized.
[00026) Although the invention has been described with reference to a particular arrangement of steps, parts, features, and the like, these are not intended to exhaust all possible arrangements, steps or features, and indeed many modifications and variations will be ascertainable to those of skill in the art.
Claims (15)
1. A method for performing transluminal laparoscopy, comprising the steps of:
creating an incision in a gastrointestinal wall of a mammal;
exposing an abdominal cavity to a liquid injection tube; and injecting a liquid into the abdominal cavity so as to float at least one organ and retract tissue there from.
creating an incision in a gastrointestinal wall of a mammal;
exposing an abdominal cavity to a liquid injection tube; and injecting a liquid into the abdominal cavity so as to float at least one organ and retract tissue there from.
2. The method of claim 1, further comprising the step of inserting a distal end of a tubular member through a natural body orifice of the mammal to the digestive tract of the mammal.
3. The method of claim 2, further comprising the step of advancing the distal end of the tubular member through the incision in the gastrointestinal wall.
4. The method of claim 3, wherein the liquid injection tube is a channel in the tubular member that injects liquid out of the distal end of the tubular member into the abdominal cavity.
5. The method of claim 3, further comprising the step of performing at least one surgical task within the abdominal cavity with at least one endoscopic surgical tool disposed in the tubular member.
6. The method of claim 5, wherein the step of injecting pressurized liquid into the abdominal cavity continues during the step of performing at least one surgical task.
7. The method of claim 3, furthering comprising the step of irrigating the liquid injected into the abdominal cavity out of the abdominal cavity.
8. The method of claim 7, wherein the step of irrigating the liquid injected into the abdominal cavity occurs while pressurized liquid is injected into the abdominal cavity.
9. The method of claim 7, wherein the step of irrigating the liquid injected into the abdominal cavity is provided by the distal end of an irrigation port disposed in the abdominal cavity.
10. The method of claim 9, wherein the irrigation port is disposed within the tubular member.
11. The method of claim 3, furthering comprising the step of maintaining a baseline liquid pressure in the abdominal cavity.
12. The method of claim 11, wherein the step of maintaining a baseline liquid pressure in the abdominal cavity is provided by a pressure limited pump coupled to the liquid injection tube.
13. The method of claim 3, further comprising the steps of ceasing the injection of liquid into the abdominal cavity and removing the liquid in the abdominal cavity.
14. The method of claim 13, further comprising the steps of withdrawing the tubular member from the abdominal cavity through incision and aspirating the liquid out of the abdominal cavity through the incision.
15. A method for performing transluminal laparoscopy, comprising the steps of:
providing a tubular member comprising an endoscopic surgical tool, a liquid injection tube, and an irrigation port disposed within the tubular member;
inserting a distal end of a tubular member through a natural body orifice of a mammal to the digestive tract of the mammal;
creating an incision in a gastrointestinal wall of the mammal;
advancing the distal end of the tubular member through the incision in the gastrointestinal wall;
injecting a pressurized liquid out of the distal end of the liquid injection tube into the abdominal cavity;
forming a baseline liquid pressure in the abdominal cavity so as to distend the abdominal cavity, float the organs disposed in the abdominal cavity and separate the abdominal wall from the organs;
irrigating the liquid injected into the abdominal cavity out of the abdominal cavity with the irrigation port while pressurized liquid is injected into the abdominal cavity and maintaining the baseline liquid pressure in the abdominal cavity;
ceasing the injection of liquid into the abdominal cavity and removing the liquid in the abdominal cavity through the irrigation port; and withdrawing the tubular member from the abdominal cavity through incision.
providing a tubular member comprising an endoscopic surgical tool, a liquid injection tube, and an irrigation port disposed within the tubular member;
inserting a distal end of a tubular member through a natural body orifice of a mammal to the digestive tract of the mammal;
creating an incision in a gastrointestinal wall of the mammal;
advancing the distal end of the tubular member through the incision in the gastrointestinal wall;
injecting a pressurized liquid out of the distal end of the liquid injection tube into the abdominal cavity;
forming a baseline liquid pressure in the abdominal cavity so as to distend the abdominal cavity, float the organs disposed in the abdominal cavity and separate the abdominal wall from the organs;
irrigating the liquid injected into the abdominal cavity out of the abdominal cavity with the irrigation port while pressurized liquid is injected into the abdominal cavity and maintaining the baseline liquid pressure in the abdominal cavity;
ceasing the injection of liquid into the abdominal cavity and removing the liquid in the abdominal cavity through the irrigation port; and withdrawing the tubular member from the abdominal cavity through incision.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US82905206P | 2006-10-11 | 2006-10-11 | |
| US60/829,052 | 2006-10-11 | ||
| US86991607A | 2007-10-10 | 2007-10-10 | |
| US11/869,916 | 2007-10-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2607090A1 true CA2607090A1 (en) | 2008-04-11 |
Family
ID=39277201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002607090A Abandoned CA2607090A1 (en) | 2006-10-11 | 2007-10-11 | Method for distending the abdominal cavity with a liquid |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2607090A1 (en) |
-
2007
- 2007-10-11 CA CA002607090A patent/CA2607090A1/en not_active Abandoned
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued | ||
| FZDE | Discontinued |
Effective date: 20101012 |