Device and system for performing laparoscopy

Abstract

The invention relates to a device for performing laparoscopy comprising a first lifting unit 30 for lifting an abdominal wall of a patient P, which is suitable for insertion into the abdominal cavity of a patient, wherein the first lifting unit 30 comprises an insertion channel from the proximal end 32 of the first lifting unit 30 to the distal end 33 of the first lifting unit 30, and a second lifting unit 40 for lifting an abdominal wall of a patient P. The second lifting unit 40 comprises an inflatable support section 44 that is suitable for fixing at least one fixation section 35 of the first lifting unit 30 to the inside of an abdominal wall of a patient.

Description

[0001] Device and System for Performing Laparoscopy

[0002] The present invention relates to a device for performing laparoscopy according to claim 1 and a system for performing laparoscopy according to claim 16.

[0003] Technological Background

[0004] The invention relates to a complete laparoscopic system with which diagnostic or surgical laparoscopic procedures can be performed without fixed power supply and without CO2 gas.

[0005] Laparoscopic surgery is a subspecialty of surgery in which abdominal operations are performed without major abdominal incision. Instead, the necessary surgical instruments, specially developed for laparoscopic surgery, are introduced into the abdominal cavity through small incisions and the operation is performed by means of laparoscopy using real-time video optics.

[0006] The laparoscopic systems known from the prior art are a complex and very expensive group of devices, collectively referred to as a laparoscopic tower, wherein each of these devices fulfills a specific function, such as light source, image capture device, image processing device, gas insufflation machine and monitor, in addition to the connecting cables and tubes used for connection between these devices among themselves and between these devices and the patient, making these devices very complicated to set up and requiring very much space in the operating room, and only persons with appropriate training or expertise are able to operate and set up this system, e.g., installation, cleaning and calibration of light and other functions. As already mentioned, the currently known systems have a multitude of cables and require special personnel for the management of these devices and the handling of camera and light cables, which presents a burden for the surgical procedure not only due to complexity but also because of the numerous components and additional personnel occupying valuable space in the operating room; furthermore, they offer an abundance of places where pathogens can be harbored, leading to increased infection risk.

[0007] One of the greatest obstacles among laparoscopic devices is insufflation, which requires a CO2 gas cylinder filled with compressed CO2 gas, which is connected to the insufflator via a gas hose. The insufflator is connected to the patient via another gas hose, which has a gas filter at the exit of the gas from the insufflator that filters this gas from pathogens to reduce infection risk. In most hospitals, a silicone hose is used to supply CO2 gas to the patient, and this silicone hose is sterilized by heat, which over time through repeated heat can develop miniature cracks, which is a perfect place for pathogens. This hose must be replaced after a certain number of uses, but most hospitals use it until it breaks.

[0008] KR 2018 0068074 A discloses an abdominal wall retractor for laparoscopic surgery. The abdominal wall retractor for laparoscopic surgery comprises: a first tube whose both ends are open; a second tube that is open at both ends and is arranged within the first tube in horizontal direction with the first tube; an air bag that is arranged at an outer peripheral edge of one end of the first tube; a third tube whose both ends are open and whose one end is connected to the air bag; and an air inlet that is connected to the other end of the third tube to transfer the air blown from an external device to the third tube and the air bag.

[0009] The disadvantage of this device is that the device uses an air bag that is directly connected to the abdominal wall of the patient. The air bag requires very much space in the abdominal cavity, so that the laparoscope or endoscope has hardly any space to work.

[0010] Description of the Invention

[0011] An object of the invention is to avoid at least one of the disadvantages of the prior art. In particular, it is the object of the present invention to provide an improved device or an improved system for performing laparoscopy that does not require CO2 supply or power supply for operation.

[0012] This object is solved by the features of the independent patent claims. Advantageous developments are set forth in the figures and in the dependent patent claims.

[0013] A device according to the invention for performing laparoscopy comprises a first lifting unit for lifting an abdominal wall of a patient, which is suitable for insertion into the abdominal cavity of a patient, wherein the first lifting unit comprises an insertion channel from the proximal end of the first lifting unit to the distal end of the first lifting unit, and a second lifting unit for lifting an abdominal wall of a patient. The second lifting unit comprises an inflatable support section that is suitable for fixing at least one fixation section of the first lifting unit to the inside of an abdominal wall of a patient. The device is used for lifting the abdominal wall of a patient and stabilizes the abdominal wall in a desired position. Thus, a safe and reproducible operation can be performed with this device. The present invention relates to a laparoscopic device for a complete system with which diagnostic or surgical laparoscopic procedures can be performed without fixed power supply and without CO2 gas supply. The invention is based on a device for creating, maintaining and providing a working space for the laparoscopic camera and other instruments and opens the way for the use of laparoscopy in places where this was not previously possible, such as in very rural areas of Africa, in rescue operations in remote areas and many other scenarios.

[0014] The inflatable support section serves for anchoring the at least one fixation section of the device to the abdomen of a patient. Thus, the abdominal wall of a patient can be lifted, which stabilizes the abdominal wall in a desired position. In this way, a safe and reproducible procedure can be performed with the device. In particular, the second lifting unit is suitable for insertion into the insertion channel of the first lifting unit. This is particularly advantageous when the first lifting unit and the second lifting unit are separate components in a special embodiment. Thus, the first lifting unit can be placed in the patient with the abdominal wall open and subsequently the second lifting unit can be inserted into the insertion channel of the first lifting unit to guarantee the fixation of the first lifting unit to the inside of the abdominal wall.

[0015] Preferably, the first lifting unit comprises a support element at the proximal end of the first lifting unit. This support element increases the stability of the first lifting unit. The support element may be a support disc with a central opening. This enables a symmetrical connection with the first lifting unit. The support element may have at least two connections to easily connect the device with an operating table.

[0016] Preferably, the second lifting unit has an insertion channel. The insertion channel is particularly suitable for inserting at least one laparoscope or endoscope for a medical procedure. Thus, the at least one laparoscope and other devices have sufficient space to be reproducibly inserted into the abdominal cavity of a patient.

[0017] Preferably, the inflatable support section of the second lifting unit is arranged at the distal end of the second lifting unit. The inflatable support section is arranged near the at least one fixation section of the first lifting unit, which is arranged at the distal end of the first lifting unit, and can interact precisely with the at least one fixation section of the first lifting unit. Preferably, the at least one fixation section comprises several lifting segments for fixing the first lifting unit to the inside of an abdominal wall of a patient. The lifting segments are designed to interact with the abdominal wall of the patient to lift the abdomen of the patient. For example, the lifting segments have lifting sections on which the abdominal wall can rest to hold the abdominal wall.

[0018] Preferably, at least one bending edge is arranged at the fixation section of the first lifting unit. The at least one bending edge enables a defined fixation of the first lifting unit in the abdominal cavity of the patient. Preferably, the lifting segments are at least partially arranged at the bending edge. By using at least one bending edge, the lifting segments can be transferred very precisely from the unlocking position to a locking position in the abdominal cavity.

[0019] Preferably, the inflatable support section of the second lifting unit is arranged adjacent to the at least one bending edge. The inflatable support section can be used to bring the lifting segments reproducibly from the unlocking position to a locking position in the abdominal cavity. In particular, the respective lifting section is arranged at the lifting segments such that the lifting sections are spaced from the bending edge. Thus, the transfer of the lifting segments from the unlocking position to a locking position is simplified and a fixation of the device to the abdominal wall is improved.

[0020] Preferably, at least one supply channel is provided for inflating the inflatable support section of the second lifting unit. In this way, the inflatable support section can be inflated. Preferably, air is used for inflating the inflatable support section. Thus, a simple hand pump can be used for inflating the inflatable support section.

[0021] Preferably, the at least one supply channel is arranged at the second lifting unit. Thus, the at least one supply channel and the inflatable support section are arranged in the same area of the device, which makes the manufacture of the device less complex.

[0022] In particular, the at least one supply channel is arranged between the first lifting unit and the second lifting unit. The at least one supply channel is safely arranged between the first lifting unit and the second lifting unit. Thus, the lifting units protect the at least one supply channel. An injury to the at least one supply channel can be avoided when the instruments are inserted into one of the insertion channels. This improves the safety when using the device. Preferably, the first lifting unit and the second lifting unit are connected to each other so that the abdominal wall of a patient can be lifted. In this way, a one-piece device is provided with a central insertion channel for inserting a laparoscope or other medical devices into the abdominal cavity, which can be attached to the abdominal wall of a patient to lift the abdominal wall for performing an operation. In particular, the abdominal wall is liftable by lifting both the first lifting unit and the second lifting unit. Thus, a safe lifting of the abdominal wall is possible and the fixation section is safely connected to the abdominal wall.

[0023] A system according to the invention for performing laparoscopy comprises at least two stabilization units, each comprising a fastening unit for fastening the stabilization unit to a carrier unit, and a device as disclosed herein.

[0024] This invention is based on a mechanical system for creating a space in the abdominal cavity in which the screens and surgical instruments can work. The system requires only very little space in the operating room and can also be operated and set up by less experienced users. Furthermore, no electrical connections and very little personnel are required for handling the system.

[0025] The stabilization units may consist of metal rods that are attached to each side of the carrier unit, e.g., an operating table. These metal rods may have distal openings with a spiral screw that covers the distal end and can be easily screwed out with the device described herein. These metal rods can be raised or lowered by hydraulic force inside them, which can be controlled by a foot pump on the floor or electronically by a switch.

[0026] Further advantages, features and details of the invention result from the following description, in which embodiments of the invention are described with reference to the drawings.

[0027] The reference character list is, like the technical content of the patent claims and figures, part of the disclosure. The figures are described coherently and comprehensively. Same reference characters mean same components, reference characters with different indices indicate functionally identical or similar components.

[0028] By means of the following figures, the invention is explained in more detail based on embodiments. The reference character list is part of the disclosure. Position indications such as "above", "below", "right" or "left" refer respectively to the corresponding representations and are not to be understood as limiting.

[0029] Although the invention is illustrated and described in detail by means of the figures and the associated description, this illustration and this detailed description are to be understood as illustrative and exemplary and not as limiting the invention. It is understood that experts can make changes and modifications without departing from the scope of the following claims. In particular, the invention also includes embodiments with any combination of features mentioned or shown above for various aspects and / or embodiments.

[0030] The invention also includes individual features in the figures, even if they are shown there in connection with other features and / or are not mentioned above. Furthermore, the expression "comprise" and derivatives thereof do not exclude other elements or steps. Likewise, the indefinite article "a" or "an" and derivatives thereof do not exclude a plurality. The functions of several features listed in the claims can be fulfilled by one unit. The terms "substantially", "approximately", "about" and the like in connection with a property or a value define in particular also exactly the property or exactly the value. All reference characters in the claims are not to be understood as limiting the scope of the claims.

[0031] Figure Description

[0032] The figures are described coherently and comprehensively. Same reference characters mean same components. They show:

[0033] Fig. 1 : shows a first embodiment of a device according to the invention with a first lifting unit and a second lifting unit in a schematic side view,

[0034] Fig. 2: shows the device according to Fig. 1 with an inflated support section in a schematic side view,

[0035] Fig. 3 : shows the device according to Fig. 1, in which the second lifting unit is arranged in the first lifting unit, in a schematic side view,

[0036] Fig. 4: shows the device according to Fig. 3 in a schematic top view,

[0037] Fig. 5: shows a system according to the invention with the device according to Fig. 1,

[0038] Fig. 6: shows an embodiment of a laparoscope in a schematic side view, and Fig. 7: shows another embodiment of a device in a schematic perspective view.

[0039] Embodiment of the Invention

[0040] Figure 1 and Figure 2 show a device 20 for performing laparoscopy, comprising a first lifting unit 30 for lifting an abdominal wall of a patient, which is suitable for insertion into the abdominal cavity of a patient, wherein the first lifting unit 30 comprises an insertion channel 31 from the proximal end 32 of the first lifting unit 30 to the distal end 33 of the first lifting unit 30, and a second lifting unit 40 for lifting an abdominal wall of a patient, wherein the second lifting unit 40 is suitable for insertion into the insertion channel 31 of the first lifting unit 30. The second lifting unit 40 comprises an inflatable support section 44 that is suitable for fixing at least one fixation section 35 of the first lifting unit 30 to the inside of an abdominal wall of a patient. The inflatable support section 44 serves for anchoring the device 20 to the abdominal wall of a patient. The inflatable support section 44 of the second lifting unit 40 is arranged at the distal end 43 of the second lifting unit 40. The device 20 shown in Figure 1 and Figure 2 consists of at least two components, the first lifting unit 30 and the second lifting unit 40. As shown in Figure 3 and Figure 4, however, the device 20 can also consist of a single component that comprises the first lifting unit 30 and the second lifting unit 40.

[0041] The inflatable support section 44 is arranged near the fixation section 35 of the first lifting unit 30, which is arranged at the distal end 33 of the first lifting unit 30. The fixation section 35 comprises several lifting segments 37 for attaching the first lifting unit 30 to the inside of an abdominal wall of a patient. The lifting segments 37 are designed to interact with the abdominal wall of a patient to lift the abdominal wall of a patient. At the fixation section 35 of the first lifting unit 30, a bending edge 38 is arranged. The bending edge 38 enables a defined fixation of the first lifting unit 30 in the abdominal wall of a patient. At the bending edge 38, the lifting segments 37 are arranged.

[0042] The use of the bending edge 38 enables the lifting segments 37 to be brought from an unlocking position (Figure 1) to a locking position (Figure 4) within the abdomen. The inflatable support section 44 of the second lifting unit 40 is arranged adjacent to the bending edge 38. The inflatable support section 44 is used to bring the lifting segments 37 from the unlocking position to the locking position within the abdominal cavity. In the unlocking position, the lifting segments 37 are directed in the same direction as the longitudinal extension of the first lifting unit 30. In the locking position, the lifting segments 37 are aligned in the transverse extension of the first lifting unit 30, e.g., horizontally. The first lifting unit 30 comprises a support disc 34 at the proximal end 32 of the first lifting unit 30. The support disc 34 comprises two connections 39 for easy connection of the device 20 with an operating table.

[0043] The second lifting unit 40 comprises an insertion channel 41 from the proximal end 42 of the second lifting unit 40 to the distal end 43 of the second lifting unit 40. The insertion channel 41 is suitable for inserting at least one laparoscope for a medical procedure.

[0044] The second lifting unit 40 comprises a supply channel 45 for inflating the inflatable support section 44 of the second lifting unit 40. For this device, air is used for inflating the inflatable support section 44, which is supplied to the inflatable support section 44 via the supply channel 45.

[0045] Figure 5 shows another aspect of the invention, a system 100 for performing laparoscopy, which comprises at least two stabilization units 102, 112, each of which comprises a fastening unit 103, 113 for fastening the stabilization unit 102, 112 to a carrier unit 120, as well as a device 20 disclosed herein, which is placed in an abdominal cavity of a patient P. The stabilization units 102, 112 may comprise metal rods 104, 114 on each side of the carrier unit 120. The carrier unit 120 may be an operating table.

[0046] The shown device 20 comprises the first lifting unit 30 and the second lifting unit 40 as tubes arranged and connected within each other, one in the other, extending from the outside of the abdominal wall to the abdominal cavity of the patient P. The first lifting unit 30 consists of a solid tube area with a disc 34 attached at its proximal end 32, and this disc 34 has locations where the fastening units 103, 113 are attached, which serve to lift the lifting units 30, 40, and according to this lifting it is decided where the distal end 33 of the first lifting unit 30 is attached inside the abdominal cavity of the patient P. The second lifting unit 40 is a solid tube that is provided at its distal end 43 with an inflatable support section 44 and is located directly below the solid area of the first lifting unit 30; this inflatable support section 44 is only attached to the outer wall of the second lifting unit 40, so that the interior remains empty, which is used for inserting instruments into the abdominal cavity. The inflatable support section 44 is located directly below the lifting segments 37 and prevents them from falling down, so that the lifting segments 37 after completion of the setup are clamped between the inside of the anterior abdominal wall and the inflatable support section 44 and when lifting the outer tube with the help of the fastening units 103, 113 act as one piece. At the beginning of the operation, the surgeon creates an opening in the anterior abdominal wall, preferably with the open technique, and holds the anterior abdominal wall up with forceps, as he normally does until the inflating of the inflatable support section 44, to keep the distal end 33 of the first lifting unit 30 away from the intestine and to prevent accidental clamping of intraabdominal tissue between the lifting segments 37. The rigid lifting segments 37 begin to move from the horizontal to the vertical position, and then the surgeon introduces both lifting units 30, 40 into the abdominal cavity and pushes them down until the solid tube area of the first lifting unit 30 passes the inner wall of the abdominal cavity just below the peritoneum. Then the surgeon begins to inflate the inflatable support section 44 of the second lifting unit 40 with the help of an air source 115 and the supply channel 45 attached to the second lifting unit 40, and when the inflatable support section 44 inflates, it begins to push the rigid lifting segments 37 of the first lifting unit 30 away from each other and form a fan-like shape that lies vertically under the anterior abdominal wall, and the inflatable support section 44 fixes them in horizontal position.

[0047] So when the surgeon begins to lift the first lifting unit 30 with the help of the fastening units 103, 113 attached to the sides of the operating table, the lifting segments 37 push the abdominal wall upward with them, then the surgeon stabilizes the fastening units 103, 113 in the desired position according to his preference, and when the surgeon needs to remove the device 20 after completion of the operation, he simply lets the air out of the inflatable support section 44 and begins to pull the device 20 upward, whereby the lifting segments 37 gradually return to their original, vertical, position and can be easily removed.

[0048] Figure 6 shows a laparoscopic camera 70 with a body 71 and an arm 72 extending therefrom. The body 71 represents the proximal end 73 that remains outside the body of a patient during an operation. At the tip of the arm 72 is the distal end 74.

[0049] A camera 75 and a light source 80 are located at the tip or at the proximal end 74 of the arm 72 of the camera 75. The images received by the camera are forwarded to a main interface 85 with a processor (not shown) for processing the still or video images received by the camera. The processor delivers the images to a communication interface 86, which in turn forwards the images to an interface 87. Via the interface, the images from the camera 75 can be transmitted via a communication device 76. Additionally or alternatively, the communication interface 86 can display the images on a display 88 on the camera, so that a user can preferably control the configuration of the camera via a control interface 89 via the interface. The camera 75 is independent and can process, store the images received by the camera 75 and enable the recording and removal of images from the camera 75 via the memory card 84.

[0050] The light sources 80 on the side of the arm 72 can be selectively illuminated. For example, the light source 80 can only be illuminated when it has entered the cavity of a patient into which the camera 75 is inserted. When the light source 80 is provided at a plurality of points on the circumference, in cross-section, of the arm 72, the light sources 80 can be controlled to shine only in the direction on which the camera 80 is focused or which is of interest to the operator. The camera 70 can be provided with a lens 77 that compensates for the distortion caused by the trocar tip and thus improves the light received by the camera 75. The laparoscopic camera 70 can be inserted into one of the insertion channels 31 , 41 of the device 20 shown in Figures 1 to 4.

[0051] Figure 7 shows another embodiment of the device 220. This device 220 consists of a stretchable and liftable leather or polyester or other non-stretchable material that is attached to the anterior abdominal wall and forms a film 221 that separates the abdominal wall from a metal disc 222 that sits over this film 221. This non-stretchable film has a central opening 223 that allows the passage of the L-shaped retractors and the camera 75 into the interior of the abdomen, but this opening is smaller than the size of the metal disc 222 to prevent slipping of the metal disc 222 inside the abdomen. This non-stretchable cloth 221 comprises two fastening units 203, 213, one on each side, to attach it to the lateral operating table. These fastening units 203, 213 have many holes 207, 217 arranged at intervals to allow the use of the perfect length for different patients. These holes 207, 217 have hollow pins 208, 218 (e.g., short cylinders), one in each hole 207, 217, to allow the screw to the lateral bed rails to fix them.

[0052] The metal disc 222 has a central opening 223 that is used as a path for the camera to be inserted into the abdomen.

[0053] The metal disc 222 has four small holes 224 on the side to allow the passage of the four L-shaped retractors 225 that are used to lift the abdomen from the inside, thereby creating the space. In one aspect, this small hole 224 is connected to a flat, larger round space 226 that is used to lock the distal end of the L-shaped retractors 225 that end as a large ball, in another aspect this flat space is rectangular shaped and the distal end of the L-shaped retractors 225 is rectangular. In one aspect, these L-shaped retractors 225 must be less than 90 degrees between the transverse and the vertical limbs, so that when exerting pressure by lifting the non- stretchable cloth 221 and the metal disc 222, the probability is low that these L-shaped retractors 225 slip out and always lift the abdominal wall. In one aspect, the vertical limb of the L-shaped retractors 225 can be long or short depending on the patient.

[0054] When the operation begins, the surgeon had to make an opening in the abdominal wall through the navel, then place the non-stretchable cloth 221 over the anterior abdominal wall and connect it horizontally with the operating table, then begin to insert the L-shaped retractors 225, and while inserting each retractor 225, the surgeon ensures that it is attached to the metal disc 222, since the vertical leg of the L-shaped retractors 225 must be as short as possible. Then the surgeon pushes the metal disc 222 down until it rests on the non-stretchable cloth 221 , and the surgeon pushes the vertical leg of the L-shaped retractors 225 down to keep them stuck just above the metal disc 222. If the height is not suitable, the surgeon can always adjust the height by pressing a button at the distal end of the L-shaped retractor 225 that releases the locking mechanism, and also allow the removal of the L-shaped retractors 225 at the end of the operation.

[0055] After the metal disc 222 is in place and the L-shaped retractors 225 have reached the perfect length, the surgeon begins to lift the rods of the side table by pumping the hydraulic mechanism into these rods, and as they lift, they also lift the central disc 222 via the non-stretchable cloth 221.

[0056] Reference Character List

[0057] 20 Device

[0058] 30 First lifting unit

[0059] 31 Insertion channel

[0060] 32 Proximal end

[0061] 33 Distal end

[0062] 34 Support disc

[0063] 35 Fixation section Lifting segments

[0064] Bending edge

[0065] Connections

[0066] Second lifting unit

[0067] Insertion channel

[0068] Proximal end

[0069] Distal end

[0070] Inflatable support section

[0071] Supply channel

[0072] Laparoscopic camera

[0073] Body

[0074] Arm

[0075] Proximal end

[0076] Distal end

[0077] Camera

[0078] Communication device

[0079] Lens

[0080] Light source

[0081] Memory card

[0082] Main interface

[0083] Communication interface

[0084] Interface

[0085] Display Control interface

[0086] System

[0087] Stabilization units

[0088] Fastening units

[0089] Metal rods

[0090] Stabilization units

[0091] Fastening units

[0092] Metal rods

[0093] Air source

[0094] Carrier unit

[0095] Device

[0096] Fastening unit

[0097] Holes

[0098] Pins

[0099] Fastening unit

[0100] Holes

[0101] Pins

[0102] Cloth

[0103] Metal disc

[0104] Central opening

[0105] Holes

[0106] L-shaped retractors

[0107] Space P Patient

[0108] Aw Abdominal wall

Claims

Patent Claims1. Device (20) for performing laparoscopy, comprising a first lifting unit (30) for lifting an abdominal wall of a patient, which is suitable for insertion into the abdominal cavity of a patient, wherein the first lifting unit (30) comprises an insertion channel from the proximal end (32) of the first lifting unit (30) to the distal end (33) of the first lifting unit (30), a second lifting unit (40) for lifting an abdominal wall of a patient, characterized in that the second lifting unit (40) comprises an inflatable support section (44) that is suitable for fixing at least one fixation section (35) of the first lifting unit (30) to the inside of an abdominal wall of a patient.

2. Device according to claim 1, characterized in that the second lifting unit (40) has an insertion channel (41) that is particularly suitable for inserting at least one laparoscope for a medical procedure.

3. Device according to claim 1 or 2, characterized in that the inflatable support section (44) of the second lifting unit (40) is arranged at the distal end (43) of the second lifting unit (40).

4. Device according to one of the preceding claims, characterized in that the at least one fixation section (35) comprises several lifting segments (37) for fixing the first lifting unit (30) to the inside of an abdominal wall of a patient.

5. Device according to one of the preceding claims, characterized in that at least one bending edge (38) is arranged at the fixation section (35) of the first lifting unit (30).

6. Device according to claim 5, characterized in that the lifting segments (37) are at least partially arranged at the bending edge (38).

7. Device according to claim 5 or 6, characterized in that the inflatable support section (44) of the second lifting unit (40) is arranged adjacent to the at least one bending edge (38).

8. Device according to one of the claims 4 to 7, characterized in that the lifting segments (38) comprises lifting sections on which the abdominal wall can rest to hold the abdominal wall.

9. Device according to claim 8, characterized in that the respective lifting section is arranged at the lifting segments (37) such that the lifting sections are spaced from the bending edge (38).

10. Device according to one of the preceding claims, characterized in that at least one supply channel (45) is provided for inflating the inflatable support section (44) of the second lifting unit (40).

11. Device according to claim 10, characterized in that the at least one supply channel (45) is arranged at the second lifting unit (40).

12. Device according to claim 10 or 11, characterized in that the at least one supply channel (45) is arranged at the second lifting unit (40) and between the first lifting unit (30) and the second lifting unit (40).

13. Device according to one of the preceding claims, characterized in that the first lifting unit (30) and the second lifting unit (40) are connected to each other so that the abdominal wall of a patient can be lifted.

14. Device according to one of the preceding claims, characterized in that the first lifting unit (30) and the second lifting unit (40) are connected to each other so that the abdominal wall of a patient can be lifted. by lifting both the first lifting unit (30) and the second lifting unit (40).

15. Device according to one of the preceding claims, characterized in that the second lifting unit (40) is suitable for insertion into the insertion channel (31) of the first lifting unit (30).

16. System (100) for performing laparoscopy, comprising at least two stabilization units (102, 112), each comprising a fastening unit (103, 113) for fastening the stabilization unit (102, 112) to a carrier unit, and a device (20) according to one of the preceding claims.

Images