CA1325940C - Visceral anchor and method for visceral wall mobilization - Google Patents
Visceral anchor and method for visceral wall mobilizationInfo
- Publication number
- CA1325940C CA1325940C CA000537230A CA537230A CA1325940C CA 1325940 C CA1325940 C CA 1325940C CA 000537230 A CA000537230 A CA 000537230A CA 537230 A CA537230 A CA 537230A CA 1325940 C CA1325940 C CA 1325940C
- Authority
- CA
- Canada
- Prior art keywords
- cross bar
- anchor
- visceral
- suture
- attached
- 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.)
- Expired - Lifetime
Links
Classifications
-
- 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
- A61M27/00—Drainage appliance for wounds or the like, i.e. wound drains, implanted drains
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
- A61B17/0401—Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
- A61B17/0401—Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors
- A61B2017/0446—Means for attaching and blocking the suture in the suture anchor
- A61B2017/0448—Additional elements on or within the anchor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
- A61B17/0401—Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors
- A61B2017/0446—Means for attaching and blocking the suture in the suture anchor
- A61B2017/0454—Means for attaching and blocking the suture in the suture anchor the anchor being crimped or clamped on the suture
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
- A61B17/0401—Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors
- A61B2017/0464—Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors for soft tissue
Abstract
Abstract of the Disclosure A visceral anchor and method for visceral wall mobilization is disclosed. The visceral anchor includes an elongated cross bar to which a suture is attached at a location substantially in the center of the cross bar.
The cross bar further includes a helical spring sheath which jackets a rigid rod, the sheath extending beyond the ends of the rod to form flexible ends. An alternative embodiment includes a second suture attached to one of the ends of the cross bar. The sutures are used for orienting the anchor during insertion into and removal from a hollow viscus. The method of visceral wall mobilization includes providing a tract through the skin into a hollow intra-abdominal viscus and inserting the anchor into the viscus lumen. The sutures extend through the tract and the unattached ends remain on the outside of the body.
The center suture is pulled to orient the anchor for mobilization of the visceral wall. The end suture is pulled to orient the anchor for removal.
The cross bar further includes a helical spring sheath which jackets a rigid rod, the sheath extending beyond the ends of the rod to form flexible ends. An alternative embodiment includes a second suture attached to one of the ends of the cross bar. The sutures are used for orienting the anchor during insertion into and removal from a hollow viscus. The method of visceral wall mobilization includes providing a tract through the skin into a hollow intra-abdominal viscus and inserting the anchor into the viscus lumen. The sutures extend through the tract and the unattached ends remain on the outside of the body.
The center suture is pulled to orient the anchor for mobilization of the visceral wall. The end suture is pulled to orient the anchor for removal.
Description
1~2~94~
VISCERAL ANCHOR AND METHOD OF VISCERAL WALL MOBILIZATION
- .
Background of the Invention ¦ Field of the Invention:
The present invention relates generally to the field of surgical methods and devices for establishing drains in 5 intra-abdomina~ viscera.
:
Description of the Related Art:
The insertion of a drain tube into the stomach, gall bladder and other intra-abdominal viscera carries an inherent risk of spillage of gastric juices, bile or 10 infected fluids into the peritoneal cavity if the viscus ~ becomes invaginated during tract dilation, or the wire 3 guide becomes coiled within the peritoneal cavity and the -~ drain cannot be reinserted. Therefore, one feature of this invention is to provide a visceral ancbor which 15 atraumatically mobilizes and internally tamponades the ~ wall of the stomach, bowel, gall bladder and/or -1 superficial abscesses against the abdominal or chest wall before inserting a larger retention loop or other drain.
j Several and various devices and methocls have been 20 proposed for the purpose of facilitating the insertion of ' drains in intra-abdominal viscera. A stomach catheter placement system is disclosed in U.S. Patent No.
. ~ .
... ~ .
~.
: ' ' 3,961,632, issued to Moossun on June 8, 1976. The Moossun - system provides mobilization of the stomach wall using a magnetic nasogastric intubation device. Once the stomach ~ wall is brought in proximity with the abdominal wall, a 3 5 Foley type catheter is inserted through the abdominal wall into the stomach. The stomach wall is retained by an ~-~
inflatable annulus on the catheter and an external locking disc. A method and apparatus for urinary drainage is disclosed in U.S. Patent 3,598,124, issued to Anderson on lo August 10, 1971. Anderson uses a Foley type catheter for retaining a drain in the bladder.
Several retractable mechanical devices.for ~-~ establishing, retaining, and removing percutaneous -~ transport tubes are known in the related art. Examples 15 include the devices disclosed in U.S. Patent No.
¦ 4,393,873, issued to Nawash on July 19, 1983; U.S. Patent No. 3,039,468, issued to Price on June 19, 1962; and U.S.
Patent No. 3,835,863, issued to Goldberg on September 17, 1974. In Nawash, inadvertent removal of a transport tube 20 placed in the stomach is retarded by a resilient tip that assume~ an outwardly bulged configuration upon the j dissolving of a retention binding. Price discloses a ~ trocar having retractable fingers. The fingers engage the j stomach wall and a slidable clamp engages outer hide or~¦ 25 skin in order to draw the stomach wall and the skin -' together around the cannula. The Goldberg device is a ~-j T-shaped drainage tube which is surgically implanted into , a duct. Because of the flexibility of the cross tube, the arms of the cross tube fold to a substantially parallel 30 position when the tube is withdrawn through the opening in ---, the duct.
The use of guide wire in surgical methods of inserting ~-~-~ catheters into vascular systems is described in U.S.
Patent No. 4,534,363, issued to Gold on April 26, 1984 35 The Gold patent discloses an improved coating for angiographic guide wire and a method of manufacturing the guide wire.
.. ~ -.
.~ :
3 132~940 As relates particularly to the present invention, there has not been provided heretofore a simple device and percutaneous method for atraumatically mobilizing and internally tamponading the wall of an intra-abdominal 5 5 viscus against the abdominal or chest wall. ;~
- , ' , 4 132~9~0 , Summary of the Invention One embodiment of the present invention is a method of visceral wall mobilization utilizing a visceral anchor.
The visceral anchor of this embodiment includes a biocompatible elongated cross bar and a flexible biocompatible suture attached at one of its ends near the center of the cross bar. A first step is providing a tract or passage from outside of the body through the skin !and viscus wall to the viscus lumen. A further step is inserting the visceral anchor through the tract and into 10 the viscus lumen. During insertion, the elongated cross `^
,bar is aligned along the longitudinal axis of the tract.
iThe suture is left extending through the tract with the unattached end remaining on the outside of the body. A
further step is pulling the suture until the cross bar is 15 aligned perpendicularly to the longitudinal axis of the `-tract and the cross bar engages the visceral wall.
Further pulling of the suture will mobilize the visceral wall. -~
Another embodiment of the present invention is a ~`
¦20 method of visceral wall mobilization utilizing a retrievable visceral anchor. The retrievable visceral anchor of this embodiment includes a biocompatible elongated cross bar, one flexible biocompatible suture -;1attached at one of its end near the center of the cross ~
25 bar, and a second flexible biocompatible suture attached -at one of its ends to one end of the cross bar. A first step of the method is providing a tract from outside of the body through the skin and YiSCUS wall to the viscus -'lumen. The tract has a longitudinal axis extending from ,JI30 outside the body to the viscus lumen. A further step is inserting the visceral anchor through the tract and into `the viscus lumen. During insertion, the cross bar is aligned along the longitudinal axis of the tract. The sutures are left extending through the tract with their . .
' . '.:
5 1325940 61211-867 ~;
unattached ends remaining on the outside of the body. Another step is pulling the suture attached to the center of the cross bar until the cross bar is aligned perpendicularly to the longitudinal axis of the tract and the cross bar engages the visceral wall.
Further pulling of the first suture will mobilize the visceral wall. Still another step is retrieving the viæceral anchor by slackening the first suture so that the anchor is released from engagement with the visceral wall. The suture attached to the end of the cross bar is then pulled until the cross bar is aligned along the longitudinal axis of the tract and pulled through the tract.
Another embodiment of the present invention is a visceral anchor for insertion into a viscus lumen through the wall of a hollow viscus. The visceral anchor of this embodiment -~
, includes a biocompatible elongated cross bar and a flexible 3 biocompatible suture attached at one of its ends near the center of the cross bar.
In accordance with the invention there is provided a visceral anchor comprising: a biocompatible elongated cross bar j 20 having opposite ends; and a first flexible biocompatible suture having a first attached end and a second unattached end, the first , attached end being attached to said cross bar at a location substantially in the center of said cross bar.
In accordance with another aspect of the invention there : is provided a retaining element adapted for insertion through a ~ ` ~: `:
5a 132~940 61211-867 percutaneous tract and eventual removal through the same percutaneous tract, comprising an elongated head, a primary flexible tension filament secured to said head, and a secondary :
extension filament secured to an end of said head, adapted to be pulled upon to withdraw said head end-wise upon release of tension - .
on said first tension element.
In accordance with yet another aspect of the invention there is provided a commercial package containing a visceral ~
anchor comprising a biocompatible elongated cross bar having ~. :
10 opposite ends; and a first flexible biocompatible suture having a -- :
first attached end and a second unattached end, the first attached end being attached to said cross bar at a location substantially in the center of said cross bar, together with instructions for inserting the anchor through a tract and pulling the suture to ~
position the cross bar perpendicular to the tract. .~`
Related objects and advantages of the present invention will be apparent from the following description. -:
E` ~
~ .
, .. , . .. .... ., . . . .... . ... , . ..... .. .... , ... .. , .. ... . ,. . -.. , . . ~ ., .. ~. .. . .
132594~
Brief Description of the Drawings ! FIG. 1 is an enlarged perspective view of a visceral anchor according to a typical embodiment of the present invention.
FIG. 2 is an enlarged fragmentary cross-sectional view 5 of the visceral anchor of FIG. 1.
FIG. 3 is a schematic representation of a step in one embodiment of the method of visceral wall mobilization of ~ the present invention.
!~, FIG. 4 is a schematic representation of a further step 10 of the method of FIG. 3, particularly showing the visceral j anchor after insertion into a hollow viscus.
FIG. 5 is a schematic representation according to the ~ method of FIG. 3, particularly showing the anchor J positioned in perpendicular relation to the longitudinal 15 axis of the tract and engaged with the visceral wall.
FIG. 6 is a schematic representation according to the method of FIG. 3, particularly showing the visceral wall retracted against the abdominal ~all, and a drain tube inserted into the viscus lumen.
FIG. 7 is a schematic representation according to one embodiment of an anchor removal step of the method of the present invention, particularly showing the visceral ~ anchor released from engagement with the visceral wall and 3 the end suture extending through a cannula.
2s FIG. 8 is a schematic representation according to the ---~, anchor removal step of FIG. 7, particularly showing the visceral anchor aligned along the longitudinal axis of the cannula prior to being removed with the cannula. ~
, FIG. 9 is a perspective view of an alternative ~--l 30 embodiment of the visceral anchor of the present invention.
FIG. 10 is a schematic representation of a step in an -' alternative embodiment of the method of visceral wall - mobilization of the present invention.
FIG. lOA is a view of the needle of FIG. 10 looking at ; 35 the needle at a 90 angle as compared to FIG. 10.
7 13259~0 ~ :~
Description of the Preferred Embodiment For the purposes of promoting an understanding of the ~
principles of the invention, reference will now be made to -the embodiment illustrated in the drawings and specific language will be used to describe the same. It will nevertheless be understood that no limitation of the scope of the invention is thereby intended, such alterations and further modifications in the illustrated device, and such ~-further applications of the principles of the invention as illustrated therein being contemplated as would normally occur to one skilled in the art to which the invention relates.
Referring now more particularly to FIG. 1, there is shown visceral anchor 10 according to a preferred embodiment of the present invention. In the embodiment shown in FIG. 1, the visceral ancbor 10 includes cross bar 11 and suture 12. The cross bar 11 is elongated and cylindrically shaped, and includes a center portion 15 interposed between the ends 13 and 14. The suture 12 includes an attached end 17 and an unattached end 18.
Attached end 17 is attached to cross bar 11 at a location substantially in the center thereof. The anchor 10 further includes a suture 20, having unattached end 21 and an attached end 22 attached to the end 13 of the cross bar 3 11. Sutures 12 and 20 are typically constructed of common 25 suture material. For example, in the preferred embodiment, 4-0 TEVDEK suture material is used.
; Preferably the sutures 12 and 20 are approximately 40 centimeters in length.
The internal construction of cross bar 11 is shown in FIG. 2. The center portion 15 of cross bar 11 includes a rigid rod 30 jacketed by a helical spring sheath 16. In -the preferred embodiment, sheath 16 is standard stainless steel surgical wire guide material having an approximate outside diamete~ of .87 millimeters. Rod 30 may be a * Trade-mark :
-stainless steel cannula or rod. In the preferredembodiment, rod 30 is approximately 10 millimeters in length. Sheath 16 extends beyond the ends of rod 30 to form flexible end portions 32 and 33. It is desirable to provide flexible end portions so that anchor 10 may atraumatically engage the internal walls of intra-abdominal viscera. In the embodiment shown in FIG.
VISCERAL ANCHOR AND METHOD OF VISCERAL WALL MOBILIZATION
- .
Background of the Invention ¦ Field of the Invention:
The present invention relates generally to the field of surgical methods and devices for establishing drains in 5 intra-abdomina~ viscera.
:
Description of the Related Art:
The insertion of a drain tube into the stomach, gall bladder and other intra-abdominal viscera carries an inherent risk of spillage of gastric juices, bile or 10 infected fluids into the peritoneal cavity if the viscus ~ becomes invaginated during tract dilation, or the wire 3 guide becomes coiled within the peritoneal cavity and the -~ drain cannot be reinserted. Therefore, one feature of this invention is to provide a visceral ancbor which 15 atraumatically mobilizes and internally tamponades the ~ wall of the stomach, bowel, gall bladder and/or -1 superficial abscesses against the abdominal or chest wall before inserting a larger retention loop or other drain.
j Several and various devices and methocls have been 20 proposed for the purpose of facilitating the insertion of ' drains in intra-abdominal viscera. A stomach catheter placement system is disclosed in U.S. Patent No.
. ~ .
... ~ .
~.
: ' ' 3,961,632, issued to Moossun on June 8, 1976. The Moossun - system provides mobilization of the stomach wall using a magnetic nasogastric intubation device. Once the stomach ~ wall is brought in proximity with the abdominal wall, a 3 5 Foley type catheter is inserted through the abdominal wall into the stomach. The stomach wall is retained by an ~-~
inflatable annulus on the catheter and an external locking disc. A method and apparatus for urinary drainage is disclosed in U.S. Patent 3,598,124, issued to Anderson on lo August 10, 1971. Anderson uses a Foley type catheter for retaining a drain in the bladder.
Several retractable mechanical devices.for ~-~ establishing, retaining, and removing percutaneous -~ transport tubes are known in the related art. Examples 15 include the devices disclosed in U.S. Patent No.
¦ 4,393,873, issued to Nawash on July 19, 1983; U.S. Patent No. 3,039,468, issued to Price on June 19, 1962; and U.S.
Patent No. 3,835,863, issued to Goldberg on September 17, 1974. In Nawash, inadvertent removal of a transport tube 20 placed in the stomach is retarded by a resilient tip that assume~ an outwardly bulged configuration upon the j dissolving of a retention binding. Price discloses a ~ trocar having retractable fingers. The fingers engage the j stomach wall and a slidable clamp engages outer hide or~¦ 25 skin in order to draw the stomach wall and the skin -' together around the cannula. The Goldberg device is a ~-j T-shaped drainage tube which is surgically implanted into , a duct. Because of the flexibility of the cross tube, the arms of the cross tube fold to a substantially parallel 30 position when the tube is withdrawn through the opening in ---, the duct.
The use of guide wire in surgical methods of inserting ~-~-~ catheters into vascular systems is described in U.S.
Patent No. 4,534,363, issued to Gold on April 26, 1984 35 The Gold patent discloses an improved coating for angiographic guide wire and a method of manufacturing the guide wire.
.. ~ -.
.~ :
3 132~940 As relates particularly to the present invention, there has not been provided heretofore a simple device and percutaneous method for atraumatically mobilizing and internally tamponading the wall of an intra-abdominal 5 5 viscus against the abdominal or chest wall. ;~
- , ' , 4 132~9~0 , Summary of the Invention One embodiment of the present invention is a method of visceral wall mobilization utilizing a visceral anchor.
The visceral anchor of this embodiment includes a biocompatible elongated cross bar and a flexible biocompatible suture attached at one of its ends near the center of the cross bar. A first step is providing a tract or passage from outside of the body through the skin !and viscus wall to the viscus lumen. A further step is inserting the visceral anchor through the tract and into 10 the viscus lumen. During insertion, the elongated cross `^
,bar is aligned along the longitudinal axis of the tract.
iThe suture is left extending through the tract with the unattached end remaining on the outside of the body. A
further step is pulling the suture until the cross bar is 15 aligned perpendicularly to the longitudinal axis of the `-tract and the cross bar engages the visceral wall.
Further pulling of the suture will mobilize the visceral wall. -~
Another embodiment of the present invention is a ~`
¦20 method of visceral wall mobilization utilizing a retrievable visceral anchor. The retrievable visceral anchor of this embodiment includes a biocompatible elongated cross bar, one flexible biocompatible suture -;1attached at one of its end near the center of the cross ~
25 bar, and a second flexible biocompatible suture attached -at one of its ends to one end of the cross bar. A first step of the method is providing a tract from outside of the body through the skin and YiSCUS wall to the viscus -'lumen. The tract has a longitudinal axis extending from ,JI30 outside the body to the viscus lumen. A further step is inserting the visceral anchor through the tract and into `the viscus lumen. During insertion, the cross bar is aligned along the longitudinal axis of the tract. The sutures are left extending through the tract with their . .
' . '.:
5 1325940 61211-867 ~;
unattached ends remaining on the outside of the body. Another step is pulling the suture attached to the center of the cross bar until the cross bar is aligned perpendicularly to the longitudinal axis of the tract and the cross bar engages the visceral wall.
Further pulling of the first suture will mobilize the visceral wall. Still another step is retrieving the viæceral anchor by slackening the first suture so that the anchor is released from engagement with the visceral wall. The suture attached to the end of the cross bar is then pulled until the cross bar is aligned along the longitudinal axis of the tract and pulled through the tract.
Another embodiment of the present invention is a visceral anchor for insertion into a viscus lumen through the wall of a hollow viscus. The visceral anchor of this embodiment -~
, includes a biocompatible elongated cross bar and a flexible 3 biocompatible suture attached at one of its ends near the center of the cross bar.
In accordance with the invention there is provided a visceral anchor comprising: a biocompatible elongated cross bar j 20 having opposite ends; and a first flexible biocompatible suture having a first attached end and a second unattached end, the first , attached end being attached to said cross bar at a location substantially in the center of said cross bar.
In accordance with another aspect of the invention there : is provided a retaining element adapted for insertion through a ~ ` ~: `:
5a 132~940 61211-867 percutaneous tract and eventual removal through the same percutaneous tract, comprising an elongated head, a primary flexible tension filament secured to said head, and a secondary :
extension filament secured to an end of said head, adapted to be pulled upon to withdraw said head end-wise upon release of tension - .
on said first tension element.
In accordance with yet another aspect of the invention there is provided a commercial package containing a visceral ~
anchor comprising a biocompatible elongated cross bar having ~. :
10 opposite ends; and a first flexible biocompatible suture having a -- :
first attached end and a second unattached end, the first attached end being attached to said cross bar at a location substantially in the center of said cross bar, together with instructions for inserting the anchor through a tract and pulling the suture to ~
position the cross bar perpendicular to the tract. .~`
Related objects and advantages of the present invention will be apparent from the following description. -:
E` ~
~ .
, .. , . .. .... ., . . . .... . ... , . ..... .. .... , ... .. , .. ... . ,. . -.. , . . ~ ., .. ~. .. . .
132594~
Brief Description of the Drawings ! FIG. 1 is an enlarged perspective view of a visceral anchor according to a typical embodiment of the present invention.
FIG. 2 is an enlarged fragmentary cross-sectional view 5 of the visceral anchor of FIG. 1.
FIG. 3 is a schematic representation of a step in one embodiment of the method of visceral wall mobilization of ~ the present invention.
!~, FIG. 4 is a schematic representation of a further step 10 of the method of FIG. 3, particularly showing the visceral j anchor after insertion into a hollow viscus.
FIG. 5 is a schematic representation according to the ~ method of FIG. 3, particularly showing the anchor J positioned in perpendicular relation to the longitudinal 15 axis of the tract and engaged with the visceral wall.
FIG. 6 is a schematic representation according to the method of FIG. 3, particularly showing the visceral wall retracted against the abdominal ~all, and a drain tube inserted into the viscus lumen.
FIG. 7 is a schematic representation according to one embodiment of an anchor removal step of the method of the present invention, particularly showing the visceral ~ anchor released from engagement with the visceral wall and 3 the end suture extending through a cannula.
2s FIG. 8 is a schematic representation according to the ---~, anchor removal step of FIG. 7, particularly showing the visceral anchor aligned along the longitudinal axis of the cannula prior to being removed with the cannula. ~
, FIG. 9 is a perspective view of an alternative ~--l 30 embodiment of the visceral anchor of the present invention.
FIG. 10 is a schematic representation of a step in an -' alternative embodiment of the method of visceral wall - mobilization of the present invention.
FIG. lOA is a view of the needle of FIG. 10 looking at ; 35 the needle at a 90 angle as compared to FIG. 10.
7 13259~0 ~ :~
Description of the Preferred Embodiment For the purposes of promoting an understanding of the ~
principles of the invention, reference will now be made to -the embodiment illustrated in the drawings and specific language will be used to describe the same. It will nevertheless be understood that no limitation of the scope of the invention is thereby intended, such alterations and further modifications in the illustrated device, and such ~-further applications of the principles of the invention as illustrated therein being contemplated as would normally occur to one skilled in the art to which the invention relates.
Referring now more particularly to FIG. 1, there is shown visceral anchor 10 according to a preferred embodiment of the present invention. In the embodiment shown in FIG. 1, the visceral ancbor 10 includes cross bar 11 and suture 12. The cross bar 11 is elongated and cylindrically shaped, and includes a center portion 15 interposed between the ends 13 and 14. The suture 12 includes an attached end 17 and an unattached end 18.
Attached end 17 is attached to cross bar 11 at a location substantially in the center thereof. The anchor 10 further includes a suture 20, having unattached end 21 and an attached end 22 attached to the end 13 of the cross bar 3 11. Sutures 12 and 20 are typically constructed of common 25 suture material. For example, in the preferred embodiment, 4-0 TEVDEK suture material is used.
; Preferably the sutures 12 and 20 are approximately 40 centimeters in length.
The internal construction of cross bar 11 is shown in FIG. 2. The center portion 15 of cross bar 11 includes a rigid rod 30 jacketed by a helical spring sheath 16. In -the preferred embodiment, sheath 16 is standard stainless steel surgical wire guide material having an approximate outside diamete~ of .87 millimeters. Rod 30 may be a * Trade-mark :
-stainless steel cannula or rod. In the preferredembodiment, rod 30 is approximately 10 millimeters in length. Sheath 16 extends beyond the ends of rod 30 to form flexible end portions 32 and 33. It is desirable to provide flexible end portions so that anchor 10 may atraumatically engage the internal walls of intra-abdominal viscera. In the embodiment shown in FIG.
2, sutures 12 and 20 extend into the hollow of sheath 16 and are interconnected around rod 30 at location 31. The -lo sutures 12 and 20 may constitute a single suture for ease of manufacture. -The ends 13 and 14 of cross bar 11 are rounded and extend beyond the ends of helical spring sheath 16. The ends 13 and 14 may be formed of any suitable biocompatible 15 material capable of bonding to the sheath 16. For example, epoxy or a bead of metal welded to sheath 16 may ~ be used. In the preferred embodiment, epoxy is provided ¦ to form and integrally bond ends 13 and 14 to sheath 16.
The attached end 22 of the suture 20 is encased within end 20 13 to fasten suture 20 to cross bar 11. The suture 20 is thus secured yet passes through the epoxy material to be ¦ secured also at location 31, as previously described.
The method of visceral wall mobilization utilizing the visceral anchor is illustrated in FIGS. 3 through 7.
j 25 Referring to FIG. 3, in the preferred embodiment of the method, a tract or passageway is established from outside ! of the body through the skin and viscus wall to the viscus ~-; lumen by a needle puncture. In the preferred embodiment, a 15 centimeter long 22 gauge needle 39, over which a 30 cannula or 16 gauge plastic sheath 40 is mounted, is used for puncture. Once the distended viscus lumen is localized with the protruding needle, the outer cannula or sheath is advanced over it, and the sheath left in place, defining the tract. With the sheatn in place, the needle 35 is removed. ~IG. 3 shows plastic sheath 40 defining the tract extending from outside the body through abdominal 9 132~9~0 ;~ ::
wall 41 and visceral wall 43, into viscus lumen 44 of viscus 42.
FIG. 4 shows a further step of the method wherein the , cross bar 11 is inserted through the tract defined by -~
~; 5 sheath 40 into viscus lumen 44. Cross bar 11 is aligned along the longitudinal axis of the tract during insertion, with sutures 12 and 20 trailing through sheath 40 with their unattached ends 18 and 21 remaining on the outside of the body. Cross bar 11 is pushed through sheath 40 lo with a .038 inch "J" tipped wire guide 45. FIG. 4 shows cross bar 11 within viscus lumen 44, after having been ^
.j - .
pushed through sheath 40 by the wire guide 45.
Next the suture 12 is pulled by grasping it with the sheath 40, causing the cross bar 11 to be positioned in 15 perpendicular relation to the longitudinal axis of the tract and causing the cross bar 11 to engage the internal wall of the hollow viscus. The pulling force is exerted on suture 12 in the general direction indicated by arrow ~ A. The sheath 40 is removed over the sutures 12 and 20, -'-i 20 providing the condition illustrated in FIG. 5. FIG. 5 ^~
j illustrates cross bar 11 aligned perpendicularly to needle j tract 48 and engaged with internal visceral wall 47. The -~ length of cross bar 11 is greater than the diameter of needle tract 48, and therefore cross bar 11 engages -~ 25 internal visceral wall 47. Further pull or traction is ~ exerted on the suture 12 until the visceral wall is moved into close approximation to the abdominal wall. With the ' visceral wall firmly retracted against the parietal wall, :
there is little chance of intraperitoneal leakage.
30 Tension on suture 12 is maintained by securing the suture , 12 to skin using a standard surgical needle.
The wire guide 45 is now be used to further dilate the needle tract 48 by pushing one or more increasingly larger dilators over the wire guide and into the viscus lumen.
35 Such dilators are commercially available and therefore have not be~n shown herein. Drain tube 50 may then be .' "
, 10 132~940 inserted with impunity to provide communication between viscus lumen 44 and the outside of the body. FIG. 6 illustrates inserted drain tube 50, while cross bar 11 retains visceral wall 43 against abdominal wall 41. The 5 loose suture 20 is taped to drain tube 50.
A few days later when the drain tract has been established, the visceral anchor 10 may no longer be -necessary and can be easily removed. Referring now more particularly to FIGS 7 and 8, the suture 12 is cut, thus 10 releasing the tension on the cross bar 11. A cannula 55 which may be, for example a 5 French cannula, is employed to remove visceral anchor 10. The cannula 55 is threaded over suture 20 as shown in FIG. 7 and inserted alongside -the drain tube 50 back into the viscus lumen 44. Once 15 distal end 56 of cannula 55 is inside viscus lumen 44, a gentle force in the general direction of arrow B may be applied on the suture 20. The cross bar 11 will realign it~elf along the longitudinal axis of cannula 55 as shown in FIG. 8 and can then be easily withdrawn along with 20 cannula 55. The end 13 of cross bar 11 is held in contact with distal end 56 of the cannula by tension on suture 20, thereby maintaining coaxial alignment during withdrawal of ~ csnnula 55 and cross bar 11. The suture 12 will trail the ; cross bar 11 as the cross bar and cannula are withdrawn.
While the invention has been illustrated and described ~ -in detail in the drawings and foregoing description, the same is to be considered as illustrative and not ~ restrictive in character, it being understood that only i the preferred embodiment has been shown and described and ' 30 that all changes and modifications that come within the ~ -spirit of the invention are desired to be protected.
For example, FIG. 9 shows an alternative embodiment of the visceral anchor 10' which is identical to the i embodiment of FIGS. 1 and 2 with the exception that the 35 suture 20 is not present. The single suture embodiment of `' FIG. 9 is used in an application where the anchor 10' is :
' '-.
1325~40 ::
11 .
:
not retrieved, unlike the above described retrievable anchor 10. Such a visceral anchor 10' is mounted near the distal end of the inserting distally slotted needle as shown in FIG. 10 and is placed during initial puncture.
5 In FIG. 10 the needle 100 has in its hollow interior the anchor 10' and a wire guide 101 which is used to push the anchor 10' out of the nPedle when penetration of the viscus is achieved. Correct needle position ia confirmed by injecting radiopaque dye or aspirating viscus fluid 10 through proximal needle slot 105 before ejecting anchor 10 . The length of the slot in the needle is slightly longer than the anchor so as to provide an "injection port" 102 from which the dye is ejected. The needle and wire guide are then withdrawn and the viscus is firmly ~-15 retracted against the abdominal wall as above described. ~
.: ' .,, .'., '..
7~
li ' ' ~' ~, , ;
.
The attached end 22 of the suture 20 is encased within end 20 13 to fasten suture 20 to cross bar 11. The suture 20 is thus secured yet passes through the epoxy material to be ¦ secured also at location 31, as previously described.
The method of visceral wall mobilization utilizing the visceral anchor is illustrated in FIGS. 3 through 7.
j 25 Referring to FIG. 3, in the preferred embodiment of the method, a tract or passageway is established from outside ! of the body through the skin and viscus wall to the viscus ~-; lumen by a needle puncture. In the preferred embodiment, a 15 centimeter long 22 gauge needle 39, over which a 30 cannula or 16 gauge plastic sheath 40 is mounted, is used for puncture. Once the distended viscus lumen is localized with the protruding needle, the outer cannula or sheath is advanced over it, and the sheath left in place, defining the tract. With the sheatn in place, the needle 35 is removed. ~IG. 3 shows plastic sheath 40 defining the tract extending from outside the body through abdominal 9 132~9~0 ;~ ::
wall 41 and visceral wall 43, into viscus lumen 44 of viscus 42.
FIG. 4 shows a further step of the method wherein the , cross bar 11 is inserted through the tract defined by -~
~; 5 sheath 40 into viscus lumen 44. Cross bar 11 is aligned along the longitudinal axis of the tract during insertion, with sutures 12 and 20 trailing through sheath 40 with their unattached ends 18 and 21 remaining on the outside of the body. Cross bar 11 is pushed through sheath 40 lo with a .038 inch "J" tipped wire guide 45. FIG. 4 shows cross bar 11 within viscus lumen 44, after having been ^
.j - .
pushed through sheath 40 by the wire guide 45.
Next the suture 12 is pulled by grasping it with the sheath 40, causing the cross bar 11 to be positioned in 15 perpendicular relation to the longitudinal axis of the tract and causing the cross bar 11 to engage the internal wall of the hollow viscus. The pulling force is exerted on suture 12 in the general direction indicated by arrow ~ A. The sheath 40 is removed over the sutures 12 and 20, -'-i 20 providing the condition illustrated in FIG. 5. FIG. 5 ^~
j illustrates cross bar 11 aligned perpendicularly to needle j tract 48 and engaged with internal visceral wall 47. The -~ length of cross bar 11 is greater than the diameter of needle tract 48, and therefore cross bar 11 engages -~ 25 internal visceral wall 47. Further pull or traction is ~ exerted on the suture 12 until the visceral wall is moved into close approximation to the abdominal wall. With the ' visceral wall firmly retracted against the parietal wall, :
there is little chance of intraperitoneal leakage.
30 Tension on suture 12 is maintained by securing the suture , 12 to skin using a standard surgical needle.
The wire guide 45 is now be used to further dilate the needle tract 48 by pushing one or more increasingly larger dilators over the wire guide and into the viscus lumen.
35 Such dilators are commercially available and therefore have not be~n shown herein. Drain tube 50 may then be .' "
, 10 132~940 inserted with impunity to provide communication between viscus lumen 44 and the outside of the body. FIG. 6 illustrates inserted drain tube 50, while cross bar 11 retains visceral wall 43 against abdominal wall 41. The 5 loose suture 20 is taped to drain tube 50.
A few days later when the drain tract has been established, the visceral anchor 10 may no longer be -necessary and can be easily removed. Referring now more particularly to FIGS 7 and 8, the suture 12 is cut, thus 10 releasing the tension on the cross bar 11. A cannula 55 which may be, for example a 5 French cannula, is employed to remove visceral anchor 10. The cannula 55 is threaded over suture 20 as shown in FIG. 7 and inserted alongside -the drain tube 50 back into the viscus lumen 44. Once 15 distal end 56 of cannula 55 is inside viscus lumen 44, a gentle force in the general direction of arrow B may be applied on the suture 20. The cross bar 11 will realign it~elf along the longitudinal axis of cannula 55 as shown in FIG. 8 and can then be easily withdrawn along with 20 cannula 55. The end 13 of cross bar 11 is held in contact with distal end 56 of the cannula by tension on suture 20, thereby maintaining coaxial alignment during withdrawal of ~ csnnula 55 and cross bar 11. The suture 12 will trail the ; cross bar 11 as the cross bar and cannula are withdrawn.
While the invention has been illustrated and described ~ -in detail in the drawings and foregoing description, the same is to be considered as illustrative and not ~ restrictive in character, it being understood that only i the preferred embodiment has been shown and described and ' 30 that all changes and modifications that come within the ~ -spirit of the invention are desired to be protected.
For example, FIG. 9 shows an alternative embodiment of the visceral anchor 10' which is identical to the i embodiment of FIGS. 1 and 2 with the exception that the 35 suture 20 is not present. The single suture embodiment of `' FIG. 9 is used in an application where the anchor 10' is :
' '-.
1325~40 ::
11 .
:
not retrieved, unlike the above described retrievable anchor 10. Such a visceral anchor 10' is mounted near the distal end of the inserting distally slotted needle as shown in FIG. 10 and is placed during initial puncture.
5 In FIG. 10 the needle 100 has in its hollow interior the anchor 10' and a wire guide 101 which is used to push the anchor 10' out of the nPedle when penetration of the viscus is achieved. Correct needle position ia confirmed by injecting radiopaque dye or aspirating viscus fluid 10 through proximal needle slot 105 before ejecting anchor 10 . The length of the slot in the needle is slightly longer than the anchor so as to provide an "injection port" 102 from which the dye is ejected. The needle and wire guide are then withdrawn and the viscus is firmly ~-15 retracted against the abdominal wall as above described. ~
.: ' .,, .'., '..
7~
li ' ' ~' ~, , ;
.
Claims (9)
1. A visceral anchor comprising: a biocompatible elongated cross bar having opposite ends; and a first flexible biocompatible suture having a first attached end and a second unattached end, the first attached end being attached to said cross bar at a location substantially in the center of said cross bar.
2. The visceral anchor of claim 1 and further comprising:
a second flexible biocompatible suture having a third attached end and a fourth unattached end, the third attached end being attached to one of the opposite ends of said cross bar.
a second flexible biocompatible suture having a third attached end and a fourth unattached end, the third attached end being attached to one of the opposite ends of said cross bar.
3. The visceral anchor of claim 1 in which: the opposite ends of said cross bar are flexible, there being interposed between the flexible ends a rigid center portion, the first attached end being attached to the center portion.
4. The visceral anchor of claim 3 and further comprising:
a second flexible biocompatible suture having a third attached end and a fourth unattached end, the third attached end being attached to one of the opposite ends of said cross bar.
a second flexible biocompatible suture having a third attached end and a fourth unattached end, the third attached end being attached to one of the opposite ends of said cross bar.
5. The visceral anchor of claim 4 in which: said cross bar comprises a biocompatible rigid rod and a biocompatible helical spring sheath, the rod being jacketed by the sheath, the sheath extending beyond both ends of the rod to form said flexible ends.
6. The visceral anchor of claim 5 in which: the cross bar opposite ends include epoxy material at their outermost points, the epoxy being bonded to the helical spring sheath.
7. The visceral anchor of claim 6 in which: said first suture and said second suture are of unitary construction, the first attached end and third attached end being connected beneath the sheath.
8. A retaining element adapted for insertion through a percutaneous tract and eventual removal through the same percutaneous tract, comprising an elongated head, a primary flexible tension filament secured to said head, and a secondary extension filament secured to an end of said head, adapted to be pulled upon to withdraw said head end-wise upon release of tension on said first tension element.
9. A commercial package containing a visceral anchor comprising a biocompatible elongated cross bar having opposite ends; and a first flexible biocompatible suture having a first attached end and a second unattached end, the first attached end being attached to said cross bar at a location substantially in the center of said cross bar, together with instructions for inserting the anchor through a tract and pulling the suture to position the cross bar perpendicular to the tract.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US864,340 | 1977-12-27 | ||
US06/864,340 US5123914A (en) | 1986-05-19 | 1986-05-19 | Visceral anchor for visceral wall mobilization |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1325940C true CA1325940C (en) | 1994-01-11 |
Family
ID=25343058
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA000537230A Expired - Lifetime CA1325940C (en) | 1986-05-19 | 1987-05-15 | Visceral anchor and method for visceral wall mobilization |
Country Status (10)
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US (1) | US5123914A (en) |
EP (1) | EP0246836B1 (en) |
JP (1) | JPH067831B2 (en) |
AT (1) | ATE70425T1 (en) |
AU (2) | AU7314387A (en) |
CA (1) | CA1325940C (en) |
DE (1) | DE3775272D1 (en) |
DK (1) | DK169986B1 (en) |
ES (1) | ES2028075T3 (en) |
GR (1) | GR3003392T3 (en) |
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US4705040A (en) * | 1985-11-18 | 1987-11-10 | Medi-Tech, Incorporated | Percutaneous fixation of hollow organs |
-
1986
- 1986-05-19 US US06/864,340 patent/US5123914A/en not_active Expired - Lifetime
-
1987
- 1987-05-15 CA CA000537230A patent/CA1325940C/en not_active Expired - Lifetime
- 1987-05-18 EP EP87304375A patent/EP0246836B1/en not_active Expired
- 1987-05-18 ES ES198787304375T patent/ES2028075T3/en not_active Expired - Lifetime
- 1987-05-18 AU AU73143/87A patent/AU7314387A/en not_active Abandoned
- 1987-05-18 DE DE8787304375T patent/DE3775272D1/en not_active Expired - Lifetime
- 1987-05-18 AT AT87304375T patent/ATE70425T1/en not_active IP Right Cessation
- 1987-05-19 JP JP62122387A patent/JPH067831B2/en not_active Expired - Lifetime
- 1987-05-19 DK DK254187A patent/DK169986B1/en active
-
1989
- 1989-02-02 AU AU29559/89A patent/AU613702B2/en not_active Expired
-
1991
- 1991-12-19 GR GR91401850T patent/GR3003392T3/en unknown
Also Published As
Publication number | Publication date |
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AU7314387A (en) | 1987-11-26 |
EP0246836B1 (en) | 1991-12-18 |
JPS6323651A (en) | 1988-01-30 |
US5123914A (en) | 1992-06-23 |
DK254187D0 (en) | 1987-05-19 |
AU613702B2 (en) | 1991-08-08 |
AU2955989A (en) | 1989-05-18 |
EP0246836A2 (en) | 1987-11-25 |
DK169986B1 (en) | 1995-04-24 |
ATE70425T1 (en) | 1992-01-15 |
ES2028075T3 (en) | 1992-07-01 |
EP0246836A3 (en) | 1988-06-01 |
DE3775272D1 (en) | 1992-01-30 |
DK254187A (en) | 1987-11-20 |
JPH067831B2 (en) | 1994-02-02 |
GR3003392T3 (en) | 1993-02-17 |
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Legal Events
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Effective date: 20110111 |