DE9104383U1 - Abdominal cavity expander - Google Patents
Abdominal cavity expanderInfo
- Publication number
- DE9104383U1 DE9104383U1 DE9104383U DE9104383U DE9104383U1 DE 9104383 U1 DE9104383 U1 DE 9104383U1 DE 9104383 U DE9104383 U DE 9104383U DE 9104383 U DE9104383 U DE 9104383U DE 9104383 U1 DE9104383 U1 DE 9104383U1
- Authority
- DE
- Germany
- Prior art keywords
- rod
- abdominal cavity
- cavity expander
- expander according
- folding element
- 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
- 210000000683 abdominal cavity Anatomy 0.000 title claims description 22
- 238000007789 sealing Methods 0.000 claims description 10
- 238000001839 endoscopy Methods 0.000 claims description 3
- 208000005646 Pneumoperitoneum Diseases 0.000 description 17
- 210000003815 abdominal wall Anatomy 0.000 description 12
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 210000001835 viscera Anatomy 0.000 description 2
- 208000007536 Thrombosis Diseases 0.000 description 1
- 230000003187 abdominal effect Effects 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/02—Surgical instruments, devices or methods for holding wounds open, e.g. retractors; Tractors
- A61B17/0281—Abdominal wall lifters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/02—Devices for expanding tissue, e.g. skin tissue
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Molecular Biology (AREA)
- General Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- Engineering & Computer Science (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dermatology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Pathology (AREA)
- Endoscopes (AREA)
Description
Die Erfindung betrifft ein Instrument zum Aufweiten des Pneumoperitoneums für die Endoskopie (Abdominalhöhlenexpander). The invention relates to an instrument for expanding the pneumoperitoneum for endoscopy (abdominal cavity expander).
Bei endoskopischen Untersuchungen und Operationen, insbesondere im Abdominalbereich wird das Pneumoperitoneum in der Regel mit Kohlendioxid geflutet, damit die zu behandelnden inneren Organe für die Optik und die chirurgischen Instrumente gut erreichbar sind. In seltenen Fällen kann das Pneumoperitoneum kollabieren, was die Gefahr mit sich bringt, daß die eingeführten chirurgischen Instrumente beim Herabsinken der Bauchdecke die inneren Organe verletzen.During endoscopic examinations and operations, particularly in the abdominal area, the pneumoperitoneum is usually flooded with carbon dioxide so that the internal organs to be treated are easily accessible for the optics and surgical instruments. In rare cases, the pneumoperitoneum can collapse, which brings with it the risk that the inserted surgical instruments could injure the internal organs as they descend through the abdominal wall.
Es ist daher Aufgabe der Erfindung, ein Gerät zu schaffen, das ein Kollabieren des Pneumoperitoneums während einer endoskopischen Untersuchung oder Operation verhindert.It is therefore an object of the invention to provide a device which prevents a collapse of the pneumoperitoneum during an endoscopic examination or operation.
Diese Aufgabe wird durch einen Abdominalhöhlenexpander für die Endoskopie gelöst, der einen Stab aufweist, an dessen proximalem Ende mindestens ein Klappelement zwischen einer mit dem Stab fluchtenden ersten Stellung und einer im wesentlichen quer zum Stab gerichteten zweiten Stellung klappbar angelenkt ist.This object is achieved by an abdominal cavity expander for endoscopy, which has a rod, to the proximal end of which at least one folding element is hinged so as to be foldable between a first position aligned with the rod and a second position directed essentially transversely to the rod.
Dieser Stab kann in der ersten Stellung direkt oder durch eine Trokarhülse durch die Bauchdecke des Patienten in das Pneumoperitoneum eingeführt werden. Ist der Stab soweit eingeführt, daß das Klappelement sich vollständig im Pneumoperitoneum befindet,In the first position, this rod can be inserted directly or through a trocar sleeve through the patient's abdominal wall into the pneumoperitoneum. If the rod is inserted so far that the flap element is completely in the pneumoperitoneum,
wird es in seine zweite Stellung ausgeklappt. Dies kann entweder durch ein in dem Stab oder an dem Stab angeordnetes Betätigungsgestänge geschehen, das an dem Klappelement in einem Abstand von dessen Schwenkachse angreift, oder mittels eines durch eine andere Trokarhülse eingeführten chirurgischen Instruments. Im ausgeklappen Zustand wird der Stab in proximale Richtung gezogen, wodurch das Pneumoperitoneum expandiert wird. Damit durch die Einstichstelle in der Bauchdecke kein Gas entweicht, hat der Abdominalhöhlenexpander in einer vorteilhaften Weiterbildung eine ringförmige Abdichtplatte, die axial in beliebiger Lage an dem Stab festlegbar ist.it is unfolded into its second position. This can be done either by an actuating rod arranged in the rod or on the rod, which engages the folding element at a distance from its pivot axis, or by means of a surgical instrument inserted through another trocar sleeve. In the unfolded state, the rod is pulled in a proximal direction, whereby the pneumoperitoneum is expanded. To ensure that no gas escapes through the puncture site in the abdominal wall, the abdominal cavity expander has, in an advantageous further development, a ring-shaped sealing plate that can be fixed axially in any position on the rod.
Hierfür ist die Abdichtplatte an dem proximalen Längsende einer Hülse ausgebildet, die den Stab spielfrei umgibt und die mittels einer radialen Spannschraube an dem Stab festlegbar ist. Die Bauchdecke wird in diesem Fall zwischen dem Klappelement und der Abdichtplatte eingespannt, wodurch ein Entweichen des Gases durch die Einstichstelle zuverlässig vermieden wird. Die genaue Passung zwischen Hülse und Stab ist nichtg notwendig bei Verwendung einer Ringdichtung.For this purpose, the sealing plate is formed on the proximal longitudinal end of a sleeve that surrounds the rod without play and can be secured to the rod using a radial clamping screw. In this case, the abdominal wall is clamped between the folding element and the sealing plate, which reliably prevents the gas from escaping through the puncture site. The exact fit between the sleeve and the rod is not necessary when using a ring seal.
Die Bauchdecke wird in diesem Fall zwischen dem Klappelement und der Abdichtplatte eingespannt, wodurch ein Entweichen des Gases durch die Einstichstelle zuverlässig vermieden wird.In this case, the abdominal wall is clamped between the flap element and the sealing plate, which reliably prevents the gas from escaping through the puncture site.
Der Abdominalhöhlenexpander kann in der Art eines Klappankers mit mehreren Klappelementen ausgerüstet sein, die vorzugsweise rotationssymmetrisch um dem Stab angeordnet sind. Die Klappelemente können hierfür beispielsweise an ihrem proximalen Ende klappbar an dem Stab angelenkt sein.The abdominal cavity expander can be equipped in the manner of a hinged anchor with several folding elements, which are preferably arranged rotationally symmetrically around the rod. For this purpose, the folding elements can, for example, be hinged to the rod at their proximal end.
In einer vorteilhaften Weiterbildung ist ein längliches Klappelement in seiner Mitte an dem Stab angelenkt undIn an advantageous further development, an elongated folding element is hinged to the rod in its middle and
bildet mit dem Stab in der ersten Stellung einen Zylinder, der problemlos durch eine Trokarhülse eingeführt werden kann.forms a cylinder with the rod in the first position, which can be easily inserted through a trocar sleeve.
Ist der Expander für eine Verwendung ohne Trokarhülse vorgesehen, kann das in der ersten Stellung proximale Ende des Klappelements spitz zulaufen, um eine möglichst geringe Traumatisierung der Bauchdecke beim Einstich zu gewährleisten. If the expander is intended for use without a trocar sleeve, the proximal end of the folding element in the first position can be tapered to ensure that the abdominal wall is traumatized as little as possible during insertion.
Soll der Expander nur mit einer Trokarhülse verwendet werden, so sind die Längsenden des Klappelements vorzugsweise abgerundet, um Verletzungen zu vermeiden.If the expander is to be used only with a trocar sleeve, the longitudinal ends of the folding element are preferably rounded to avoid injuries.
Der Abdominalhöhlenexpander kann bei einem akuten Druckabfall im Pneumoperitoneum durch eine bereits eingeführte Trokarhülse eingebracht werden. Es kann jedoch auch angezeigt sein, ein oder zwei Abdominalhöhlenexpander prophylaktisch zu verwenden, wenn eine Aufblähung des Pneumoperitoneums mit einer höheren Gasdurchflußrate kontraindiziert ist, z.B. bei hoher Thrombose-Anfälligkeit.The abdominal cavity expander can be inserted through a trocar sleeve that has already been inserted in the event of an acute drop in pressure in the pneumoperitoneum. However, it may also be advisable to use one or two abdominal cavity expanders prophylactically if inflation of the pneumoperitoneum with a higher gas flow rate is contraindicated, e.g. in cases of high susceptibility to thrombosis.
Die Erfindung wird nachfolgend beispielsweise anhand der schematischen Zeichnung beschrieben. In dieser zeigen:The invention is described below by way of example with reference to the schematic drawing. In this drawing:
Fig. 1 eine teilgeschnittene Seitenansicht eines Abdominalhöhlenexpanders mit Abdichtplatte;Fig. 1 a partially sectioned side view of an abdominal cavity expander with sealing plate;
Fig. 2Fig.2
bis 5 den Abdominalhöhlenexpander aus Fig. 1 beim Einführen in das Pneumoperitoneum durch die Bauchdecke mittels einer Trokarhülse und beim Expandieren des Pneumoperitoneums.to 5 the abdominal cavity expander from Fig. 1 being inserted into the pneumoperitoneum through the abdominal wall using a trocar sleeve and expanding the pneumoperitoneum.
Fig. 1 zeigt das proximale Ende eines Abdominalhöhlenexpanders 10. Der Expander 10 besteht aus einem Stab 12, an dessen distalem Ende 14 ein Klappelement 16 angelenkt ist, das in einer ersten Stellung (Abbildung) mit dem Stab 12 fluchtet und in einer zweiten Stellung (Fig. 3 bis 5) quer zum Stab ausgeklappt ist. Auf den Stab 12 ist eine Hülse 18 aufgeschoben, die mittels einer radialen Spannschraube 20 an dem Stab festlegbar ist. Die Hülse 18 weist an ihrem distalen Ende eine Abdichtplatte 22 auf, die nach dem Einführen des Expanders 10 in das Pneumoperitoneum, dem Ausklappen des Klappelements 16 und dem Ausweiten des Pneumoperitoneums durch Vorspannung des Expanders 10 in proximaler Richtung an die Bauchdecke angepreßt wird, um einen Gasverlust an der Einstichstelle der Bauchdecke zu vermeiden. Hierfür ist es vorteilhaft, wenn die Hülse 18 den Stab 12 möglichst spielfrei umgibt und/oder eine Dichtung zwischen der Hülse 18 und dem Stab 12 vorgesehen ist. Diese Dichtung ist vorteilhaft als Ringdichtung aus bekannten Gummi- oder KunststoffSorten ausgebildet.Fig. 1 shows the proximal end of an abdominal cavity expander 10. The expander 10 consists of a rod 12, to the distal end 14 of which a folding element 16 is hinged, which in a first position (illustration) is aligned with the rod 12 and in a second position (Fig. 3 to 5) is folded out transversely to the rod. A sleeve 18 is pushed onto the rod 12, which can be secured to the rod by means of a radial clamping screw 20. The sleeve 18 has a sealing plate 22 at its distal end, which is pressed against the abdominal wall by pre-tensioning the expander 10 in the proximal direction after the expander 10 has been inserted into the pneumoperitoneum, the folding element 16 has been folded out and the pneumoperitoneum has been expanded. For this purpose, it is advantageous if the sleeve 18 surrounds the rod 12 with as little play as possible and/or a seal is provided between the sleeve 18 and the rod 12. This seal is advantageously designed as a ring seal made of known rubber or plastic types.
Die Wirkungsweise des Abdominalhöhlenexpanders 10 soll nachfolgend anhand der Fig. 2 bis 5 beschrieben werden. Zu Fig. 1 identische Teile sind hierbei mit identischen Bezugszeichen versehen.The mode of operation of the abdominal cavity expander 10 will be described below with reference to Fig. 2 to 5. Parts identical to Fig. 1 are provided with identical reference numerals.
Der Expander 10 wird mittels einer Trokarhülse 24 durch die Bauchdecke 26 eines Patienten in das Pneumoperitoneum 28 eingeführt (Fig. 2). Anschließend wird das längliche Klappelement 16, das vorher mit dem Stab 12 gefluchtet hat, in eine quer zum Stab 12 befindliche zweite Stellung ausgeklappt. Dies geschieht im vorliegenden Fall unter Zuhilfenahme eines anderen ärztlichen Instruments, das durch eine weitere Trokarhülse des Pneumoperitoneums eingeführt wurde. Das Ein- und Ausklappen eines Klappelements kann jedochThe expander 10 is inserted through the abdominal wall 26 of a patient into the pneumoperitoneum 28 using a trocar sleeve 24 (Fig. 2). The elongated flap element 16, which was previously aligned with the rod 12, is then folded out into a second position transverse to the rod 12. In the present case, this is done with the aid of another medical instrument that was inserted through another trocar sleeve of the pneumoperitoneum. However, folding in and out a flap element can
auch durch ein in oder an dem Stab geführtes Betätigungsgestänge erfolgen. Nach dem Ausklappen des Klappelements wird zuerst die Trokarhülse 24 in proximaler Richtung aus dem Pneumoperitoneum herausgezogen. Anschließend wird der Expander ebenfalls in proximaler Richtung bewegt (Fig. A), bis das Klappelement 16 an der Innenseite der Bauchdecke des Patienten anliegt (Fig. 5). Nun wird der Expander in proximaler Richtung vorgespannt, wodurch die Bauchdecke 26 angehoben und das Pneumoperitoneum 28 entsprechend aufgebläht bzw. expandiert wird.also be carried out by an actuating rod guided in or on the rod. After the folding element has been unfolded, the trocar sleeve 24 is first pulled out of the pneumoperitoneum in the proximal direction. The expander is then also moved in the proximal direction (Fig. A) until the folding element 16 rests against the inside of the patient's abdominal wall (Fig. 5). The expander is now pre-tensioned in the proximal direction, whereby the abdominal wall 26 is raised and the pneumoperitoneum 28 is inflated or expanded accordingly.
Am Expander kann auch ein proximales Expanderende mit einem anderen Durchmesser oder einer unterschiedlichen Länge des Klappelementes ausgebildet sein, so daß ein Expander unterschiedliche Klappelemente an seinen entgegengesetzten Enden aufweist.The expander may also have a proximal expander end with a different diameter or a different length of the flap element, so that an expander has different flap elements at its opposite ends.
Die Abdichtplatte 22 wird in der in Fig. 5 gezeigten Stellung des Expanders 10 auf die Außenseite der Bauchdecke 26 aufgedrückt und mittels der Spannschraube 20 an dem Stab festgelegt.The sealing plate 22 is pressed onto the outside of the abdominal wall 26 in the position of the expander 10 shown in Fig. 5 and is secured to the rod by means of the clamping screw 20.
Die Abdichtplatte kann vorzugsweise einen Durchmesser von mm haben, während z.B. für den Expander ein Durchmesser von 5 oder 10 mm vorgesehen ist.The sealing plate can preferably have a diameter of mm, while for example a diameter of 5 or 10 mm is provided for the expander.
Claims (11)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9104383U DE9104383U1 (en) | 1991-04-10 | 1991-04-10 | Abdominal cavity expander |
DE9106553U DE9106553U1 (en) | 1991-04-10 | 1991-05-28 | Abdominal cavity expander |
EP92908195A EP0579674A1 (en) | 1991-04-10 | 1992-04-09 | Abdominal-cavity expander |
JP4507650A JPH0761331B2 (en) | 1991-04-10 | 1992-04-09 | Abdominal dilator |
PCT/EP1992/000811 WO1992018056A1 (en) | 1991-04-10 | 1992-04-09 | Abdominal-cavity expander |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9104383U DE9104383U1 (en) | 1991-04-10 | 1991-04-10 | Abdominal cavity expander |
Publications (1)
Publication Number | Publication Date |
---|---|
DE9104383U1 true DE9104383U1 (en) | 1991-06-06 |
Family
ID=6866181
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE9104383U Expired - Lifetime DE9104383U1 (en) | 1991-04-10 | 1991-04-10 | Abdominal cavity expander |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE9104383U1 (en) |
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992021291A3 (en) * | 1991-05-29 | 1993-01-21 | Origin Medsystems Inc | Apparatus and method for peritoneal retraction |
US5361752A (en) * | 1991-05-29 | 1994-11-08 | Origin Medsystems, Inc. | Retraction apparatus and methods for endoscopic surgery |
US5450843A (en) * | 1991-05-29 | 1995-09-19 | Origin Medsystems, Inc. | Retraction apparatus and methods for endoscopic surgery |
US5468248A (en) * | 1991-05-29 | 1995-11-21 | Origin Medsystems, Inc. | Endoscopic inflatable retraction devices for separating layers of tissue |
DE4428902A1 (en) * | 1994-07-06 | 1996-01-18 | Guenter Schaller | Accessory for surgery in abdominal region |
US5501653A (en) * | 1991-05-29 | 1996-03-26 | Origin Medsystems, Inc. | Abdominal wall lifting retractor with hinged cross-member |
US5514075A (en) * | 1991-05-29 | 1996-05-07 | Origin Medsystems, Inc. | Properitoneal mechanical retraction apparatus and methods of using |
US5527264A (en) * | 1991-05-29 | 1996-06-18 | Origin Medsystem, Inc. | Methods of using endoscopic inflatable retraction devices |
US5562603A (en) * | 1991-05-29 | 1996-10-08 | Origin Medsystems, Inc. | Endoscopic inflatable retraction device with fluid-tight elastomeric window |
DE19516932A1 (en) * | 1995-05-09 | 1996-11-14 | Aesculap Ag | Surgical clamp and support system for wall of body cavity |
US5632761A (en) * | 1991-05-29 | 1997-05-27 | Origin Medsystems, Inc. | Inflatable devices for separating layers of tissue, and methods of using |
US5676636A (en) * | 1994-07-22 | 1997-10-14 | Origin Medsystems, Inc. | Method for creating a mediastinal working space |
US5704372A (en) * | 1991-05-29 | 1998-01-06 | Origin Medsystems, Inc. | Endoscopic inflatable retraction devices for separating layers of tissue, and methods of using |
US5716327A (en) * | 1991-05-29 | 1998-02-10 | Origin Medsystems, Inc. | Body wall retraction system for wide cavity retraction |
US5728119A (en) * | 1991-05-29 | 1998-03-17 | Origin Medsystems, Inc. | Method and inflatable chamber apparatus for separating layers of tissue |
US5779728A (en) * | 1991-05-29 | 1998-07-14 | Origin Medsystems, Inc. | Method and inflatable chamber apparatus for separating layers of tissue |
US5803901A (en) * | 1991-05-29 | 1998-09-08 | Origin Medsystems, Inc. | Inflatable devices for separating layers of tissue and methods of using |
US5814101A (en) * | 1996-09-25 | 1998-09-29 | St. Jude Medical, Inc. | Holder for heart valve prosthesis |
US5836871A (en) * | 1991-05-29 | 1998-11-17 | Origin Medsystems, Inc. | Method for lifting a body wall using an inflatable lifting apparatus |
US5865728A (en) * | 1991-05-29 | 1999-02-02 | Origin Medsystems, Inc. | Method of using an endoscopic inflatable lifting apparatus to create an anatomic working space |
US6361543B1 (en) | 1991-05-29 | 2002-03-26 | Sherwood Services Ag | Inflatable devices for separating layers of tissue, and methods of using |
-
1991
- 1991-04-10 DE DE9104383U patent/DE9104383U1/en not_active Expired - Lifetime
Cited By (36)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5704372A (en) * | 1991-05-29 | 1998-01-06 | Origin Medsystems, Inc. | Endoscopic inflatable retraction devices for separating layers of tissue, and methods of using |
US5309896A (en) * | 1991-05-29 | 1994-05-10 | Origin Medsystems, Inc. | Retraction methods using endoscopic inflatable retraction devices |
US5361752A (en) * | 1991-05-29 | 1994-11-08 | Origin Medsystems, Inc. | Retraction apparatus and methods for endoscopic surgery |
US5402772A (en) * | 1991-05-29 | 1995-04-04 | Origin Medsystems, Inc. | Endoscopic expandable retraction device |
US5450843A (en) * | 1991-05-29 | 1995-09-19 | Origin Medsystems, Inc. | Retraction apparatus and methods for endoscopic surgery |
US5454367A (en) * | 1991-05-29 | 1995-10-03 | Origin Medsystems, Inc. | Method of using endoscopic inflatable retraction device with fluid tight elastomeric window |
US5465711A (en) * | 1991-05-29 | 1995-11-14 | Origin Medsystems, Inc. | Surgical procedures using endoscopic inflatable retraction devices |
US5468248A (en) * | 1991-05-29 | 1995-11-21 | Origin Medsystems, Inc. | Endoscopic inflatable retraction devices for separating layers of tissue |
US6361543B1 (en) | 1991-05-29 | 2002-03-26 | Sherwood Services Ag | Inflatable devices for separating layers of tissue, and methods of using |
US5501653A (en) * | 1991-05-29 | 1996-03-26 | Origin Medsystems, Inc. | Abdominal wall lifting retractor with hinged cross-member |
US5514075A (en) * | 1991-05-29 | 1996-05-07 | Origin Medsystems, Inc. | Properitoneal mechanical retraction apparatus and methods of using |
US5522790A (en) * | 1991-05-29 | 1996-06-04 | Origin Medsystems, Inc. | Retraction apparatus and methods for endoscopic surgery |
US5527264A (en) * | 1991-05-29 | 1996-06-18 | Origin Medsystem, Inc. | Methods of using endoscopic inflatable retraction devices |
US5531856A (en) * | 1991-05-29 | 1996-07-02 | Origin Medsystems, Inc. | Endoscopic inflatable retraction devices |
US5562603A (en) * | 1991-05-29 | 1996-10-08 | Origin Medsystems, Inc. | Endoscopic inflatable retraction device with fluid-tight elastomeric window |
US5941819A (en) * | 1991-05-29 | 1999-08-24 | Origin Medsystems, Inc. | Apparatus for creating a mediastinal working space |
US5925058A (en) * | 1991-05-29 | 1999-07-20 | Origin Medsystems, Inc. | Method and inflatable chamber apparatus for separating layers of tissue |
US5632761A (en) * | 1991-05-29 | 1997-05-27 | Origin Medsystems, Inc. | Inflatable devices for separating layers of tissue, and methods of using |
US5865728A (en) * | 1991-05-29 | 1999-02-02 | Origin Medsystems, Inc. | Method of using an endoscopic inflatable lifting apparatus to create an anatomic working space |
US5716327A (en) * | 1991-05-29 | 1998-02-10 | Origin Medsystems, Inc. | Body wall retraction system for wide cavity retraction |
US5836871A (en) * | 1991-05-29 | 1998-11-17 | Origin Medsystems, Inc. | Method for lifting a body wall using an inflatable lifting apparatus |
US5722986A (en) * | 1991-05-29 | 1998-03-03 | Origin Medsystems, Inc. | Inflatable devices for separating layers of tissue, and methods of using |
US5728119A (en) * | 1991-05-29 | 1998-03-17 | Origin Medsystems, Inc. | Method and inflatable chamber apparatus for separating layers of tissue |
US5738629A (en) * | 1991-05-29 | 1998-04-14 | Origin Medsystems, Inc. | Self-retracting endoscope |
US5743851A (en) * | 1991-05-29 | 1998-04-28 | Origin Medsystems, Inc. | Retraction apparatus and methods for endoscopic surgery |
US5743850A (en) * | 1991-05-29 | 1998-04-28 | Origin Medsystems, Inc. | Endoscopic inflatable retraction device with additional inflatable chamber |
US5779728A (en) * | 1991-05-29 | 1998-07-14 | Origin Medsystems, Inc. | Method and inflatable chamber apparatus for separating layers of tissue |
US5803901A (en) * | 1991-05-29 | 1998-09-08 | Origin Medsystems, Inc. | Inflatable devices for separating layers of tissue and methods of using |
WO1992021291A3 (en) * | 1991-05-29 | 1993-01-21 | Origin Medsystems Inc | Apparatus and method for peritoneal retraction |
US5823945A (en) * | 1991-05-29 | 1998-10-20 | Origin Medsystems, Inc. | Endoscopic inflatable retraction device with additional inflatable chamber |
DE4428902A1 (en) * | 1994-07-06 | 1996-01-18 | Guenter Schaller | Accessory for surgery in abdominal region |
US5823946A (en) * | 1994-07-22 | 1998-10-20 | Origin Medsystems, Inc. | Method for creating a mediastinal working space |
US5676636A (en) * | 1994-07-22 | 1997-10-14 | Origin Medsystems, Inc. | Method for creating a mediastinal working space |
DE19516932C2 (en) * | 1995-05-09 | 1998-02-26 | Aesculap Ag & Co Kg | Surgical tensioning and lifting device |
DE19516932A1 (en) * | 1995-05-09 | 1996-11-14 | Aesculap Ag | Surgical clamp and support system for wall of body cavity |
US5814101A (en) * | 1996-09-25 | 1998-09-29 | St. Jude Medical, Inc. | Holder for heart valve prosthesis |
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