Holding device for holding an oxygenator and a blood pump

Description

[0001] The invention relates to a case with a holding device for holding an oxygenator and a blood pump.

[0002] The invention also relates to a heart-lung machine with such a case. Patients with acute heart failure or acute lung failure can be kept alive through rapidly applied cardiopulmonary support to gain time until further treatment can be initiated. Suitable cannulas connect the patient to an extracorporeal circuit that ensures cardiac and lung function.

[0003] A heart-lung machine consists of a blood pump and an artificial lung. Blood is withdrawn from the venous system via a peripheral or central access cannula and, after being enriched with oxygen, reinserted via the venous or arterial side. This ensures that vital organs are supplied with fresh blood while the patient is transported or undergoes further treatment.

[0004] The blood pump is usually firmly connected to a drive console, and a magnetic coupling transfers the drive energy from a pump motor to a rotor of the blood pump. Roller pumps are also used, in which a pump tube is inserted into the drive console. The artificial lung, also called an oxygenator or gas exchanger, is located behind the blood pump in the direction of flow and is usually firmly attached to a holder near the blood pump. The oxygenator and the blood pump must be positioned at a specific angle to one another to ensure proper operation of the heart-lung machine. In emergency situations, the oxygenator and the blood pump are transported to the patient, where they are aligned and fluidically connected on site, which is very time-consuming.

[0005] Blood-carrying tubes lead to and from the drive console to the patient. These tubes must be long enough to allow the patient to be moved safely without kinking or other mechanical stress. The foreign surface of the tubes places a strain on the blood, so the shortest possible tubes are desirable. Furthermore, the long tubes and the multitude of heart-lung machine components that must be transported can lead to life-threatening complications during transport, as the patient and the aforementioned heart-lung machine components are usually moved separately.

[0006] US 7,846,122 B2 shows a heart-lung machine which is composed of various modules, namely a base module, a control module and a patient module.

[0007] US Pat. Nos. 7,198,751 B2 and 6,306,346 B1 disclose further heart-lung machines in which the individual components of the heart-lung machine must be arranged at least partially around the patient. US Pat. No. 4,610,656 A describes a case with a holding device for holding an oxygenator and a blood pump.

[0008] One disadvantage of the known heart-lung machines is that in emergency situations, unnecessary time is lost in aligning the oxygenator and the blood pump, and transporting the components of the heart-lung machine is complex.

[0009] The object of the invention is therefore to enable faster cardiopulmonary support of patients with acute lung failure or cardiac arrest and to simplify the transport of the components of the heart-lung machine.

[0010] The invention is defined by the features of independent claim 1.

[0011] The object is achieved by a case with a holding device of the type mentioned at the outset, which is characterized by a frame which can be connected in a rotationally fixed manner to a case housing for fixing the oxygenator and the blood pump relative to one another, wherein the frame has a frame section for a rotationally fixed connection to the oxygenator and another frame section for a rotationally fixed connection to the blood pump.

[0012] The holding device according to the invention has the advantage that the oxygenator, which is not part of the holding device, and the blood pump, which is not part of the holding device, are fixed by the frame, thus preventing relative movement between the oxygenator and the blood pump. This offers the advantage that the oxygenator and the blood pump can be fastened to the frame before use on a patient. Therefore, there is no need to align the oxygenator and the blood pump relative to one another on the patient, so that the patient can be assisted quickly with the heart-lung machine. Furthermore, the oxygenator and the blood pump do not have to be transported separately, but can be transported together using the holding device, which simplifies transport. The blood pump and oxygenator can also be transported directly together with the patient.

[0013] Relative movement between the oxygenator and the blood pump is prevented by designing the frame in such a way that the frame section and the other frame section cannot move relative to each other. Thus, the frame section and the other frame section can always be connected to each other. This can be achieved, for example, by assembling the frame section, the other frame section, and the rest of the frame as a single piece.

[0014] For the purposes of the invention, an oxygenator is understood to be a device that can enrich blood with oxygen and remove carbon dioxide from the blood. Thus, the oxygenator can replace the lungs, at least in the short term.

[0015] The connection of the frame section to the oxygenator can be positively and / or frictionally engaged. Furthermore, the connection of the other frame section to the blood pump can be positively and / or frictionally engaged. The oxygenator can also be firmly connected to the frame, in particular by gluing.

[0016] According to the invention, the holding device comprises a handle that is rotationally fixedly connected to the frame. In particular, the handle and the frame can be constructed as a single piece and / or permanently connected to each other. This further simplifies the transport of the oxygenator and the blood pump.

[0017] The handle can have a guide for guiding one or more fluid lines. A fluid, such as a gas, in particular oxygen or a gas mixture, or blood, can flow through the fluid line. If multiple fluid lines are provided, blood can flow through at least one line and gas, in particular oxygen or a gas mixture, can flow through at least one other line. The handle can be arranged at one end of the frame. In particular, the handle can be arranged at the end of the frame remote from the oxygenator and the blood pump.

[0018] The guide can be configured such that multiple fluid lines are guided, in particular selectively, in the same direction or in different directions. In particular, the fluid lines can be guided through the guide in opposite directions. Furthermore, the guide can have a recess in which the fluid line or fluid lines can be arranged.

[0019] The frame may have another guide for guiding the fluid line or multiple fluid lines. The frame may guide the fluid lines through which blood flows. The other guide may have another recess in which the fluid line or fluid lines can be arranged.

[0020] By providing the guide and / or other guides, it is easy to prevent the fluid line from being damaged or the fluid lines from being damaged. Furthermore, the fluid lines can be secured in and on the frame using additional detachable fasteners. The fixation can be form-fitting. In particular, straps or clips can be used to secure the fluid lines.

[0021] In a particular embodiment, the oxygenator and the blood pump can be arranged by the frame section and the other frame section such that the distance between an oxygenator inlet and the handle is shorter than the distance between a blood pump inlet and the handle. In particular, the other frame section can be positioned such that a flow direction of the blood flowing out of the blood pump points toward the handle and / or that the blood flows in a direction facing the handle. Thus, during operation of the blood pump and the oxygenator, the blood flowing out of the blood pump flows obliquely upward.

[0022] Of particular advantage is the case according to the invention with a holding device, wherein the holding device is connected to a case housing in a rotationally fixed manner and is partially arranged within the case housing. The case housing offers the advantage that the holding device, in particular the oxygenator and the blood pump connected to the holding device in a rotationally fixed manner, are well protected against shock and / or impact loads. In addition, the case housing acts as a thermal insulator, so that little heat loss occurs. Furthermore, the case housing acts as an acoustic insulator. A further advantage is that the case can be placed close to the patient, thus avoiding long hoses. The oxygenator and the blood pump are connected to the frame in a rotationally fixed manner.

[0023] In a particular embodiment, the case housing can have a first housing section and / or a second housing section. The first housing section and the second housing section can be detachably connected to one another in a rotationally fixed manner. The detachable connection between the first housing section and the second housing section can be a positive and / or frictional connection.

[0024] The first housing section and / or the second housing section can be formed at least partially, in particular completely, from a non-transparent material. The first housing section can consist of at least one foam material. The second housing section can consist of at least one foam material, in particular the same foam material as the first housing section. The foam material of the first and / or second housing section can be a rigid foam. The foam material has the advantage that the oxygenator and the blood pump are well protected against shock and / or impact loads. Furthermore, foam material is a good thermal insulator.

[0025] The first housing section can have a first receptacle and the second housing section can have a second receptacle. The first receptacle and the second receptacle can form a cavity in which part of the frame and / or the oxygenator and / or the blood pump are arranged. In particular, part of the frame and / or the oxygenator and / or the blood pump can be at least partially embedded in the first housing section and the second housing section. This easily prevents the frame and / or the oxygenator and / or the blood pump from moving relative to one another and / or the case housing.

[0026] In a special embodiment, a part of the second receptacle that accommodates the oxygenator can be designed as an opening to partially release the oxygenator. Furthermore, another part of the second receptacle that accommodates the blood pump can be designed as an opening to partially release the blood pump. Furthermore, another part of the second receptacle that accommodates the frame can be designed as an opening. The openings allow a user to check whether the oxygenator and / or the blood pump is working effectively without having to detach the second housing section from the first housing section.

[0027] Furthermore, the second housing section can have a recess, which can be designed as an opening. The recess can be configured such that spare parts and / or operating instructions and / or sensors are arranged therein.

[0028] The case may have a closure lid for closing the part of the second receptacle and / or the other part of the second receptacle and / or the further part of the second receptacle and / or the recess. The closure lid may be releasably connected to the second housing section. The closure lid may be arranged on the side of the second housing section facing away from the first housing section.

[0029] The closure cap simply prevents the part of the oxygenator exposed by the part of the second receptacle and / or the part of the blood pump exposed by the other part of the second receptacle and / or the fluid lines running within the frame from being damaged, for example, during transport of the case. Furthermore, with the closure cap removed, the fluid lines can be easily fluidically connected to the blood pump and / or the oxygenator. Thus, it is not necessary to separate the two housing sections to connect the fluid lines to the oxygenator and / or the blood pump.

[0030] In a particular embodiment, the first housing section and / or the second housing section can have a through-opening through which the at least one fluid line fluidically connected to the oxygenator and / or the blood pump exits the case housing. Alternatively, several fluid lines fluidically connected to the oxygenator and / or the blood pump can exit the case through the through-opening. Furthermore, a part of the frame can extend through the through-opening. The through-opening can be formed by a section of the first receptacle and / or a section of the second receptacle.

[0031] In this case, several, in particular exactly two, fluid lines can be fluidically connected to the patient. Furthermore, other fluid lines can be fluidically connected to a gas source, such as an oxygen cylinder. Two components are fluidically connected to one another if a gas and / or a liquid can flow from one component to the other or vice versa. A gas or a gas mixture, such as a mixture of oxygen and air, can be supplied to the case, in particular the oxygenator and / or the blood pump.

[0032] The case may have a fluid outlet passage through which a fluid, such as condensate, can flow out of the first housing section and / or the second housing section. This can easily prevent water from accumulating inside the case.

[0033] The case may have a further through-opening through which at least one branch line extends for supplying blood to an analysis device. Blood that has been branched off upstream or downstream from the oxygenator flows through the branch line and is supplied to an analysis device. Blood gas analyses can be performed in the analysis device.

[0034] The branch line and / or the fluid lines can be stowed in the case housing. In particular, the first receptacle and the second receptacle can be designed such that they can accommodate the branch line and the fluid lines. For operation, the branch line and / or the fluid line can be partially pulled out of the case housing. The branch line and / or the fluid lines can be connected in the case to at least one retrieval element, in particular an elastic element. The retrieval element is designed such that, after the branch line and / or the fluid line have been pulled out, it exerts a retrieval force on the branch line and / or the fluid line, so that they are pulled back into the case housing after use.

[0035] At least one locking device can be provided, which can be connected to the fluid line and / or the branch line. The locking device can be located on the outer edge of the case and ensures that the lines remain in position during use despite the return force, thus preventing them from being pulled into the case. The branch line and / or the fluid lines can be equipped with automatic and removable vent valves at one end and be resealable. The branch line can be at least 20 cm long.

[0036] The case can be vented through the through-hole and / or the further through-hole and / or the fluid outlet passage, particularly before commissioning the case. This can occur automatically, for example, if the case is placed on a horizontal plane.

[0037] The case can have a base arranged and configured such that the oxygenator inlet is positioned vertically, particularly in the direction of gravity, above the blood pump outlet when the case is placed on a support surface using the base. The support surface can, for example, be the floor on which the case is placed during use. As a result, by placing the case on the support surface, the holding device can be aligned such that the oxygenator inlet is positioned above the blood pump outlet.

[0038] In a special design, the blood pump can be powered without electricity. This means that no electrical energy is supplied to the blood pump. The blood pump can be powered by the gas flowing in the fluid line. The result is a case that only needs to be connected to a gas source and / or a device for controlling or regulating the gas flow supplied to the oxygenator and / or blood pump in order for the oxygenator and blood pump to operate.

[0039] Alternatively, the use of an electrically powered blood pump is possible. For this purpose, at least one electrical energy storage device can be located in the case, which supplies the blood pump with electrical energy. Alternatively, the blood pump can be electrically connected to a power source located outside the case via electrical cables.

[0040] The blood pump can be designed as a pulsatile displacement pump or as a rotary pump.

[0041] The blood pump and the oxygenator can be fluidically connected. The blood pump can be positioned upstream of the oxygenator. In particular, the blood drawn from the patient can flow through the blood pump and then through the oxygenator. From the oxygenator, the blood flows back to the patient.

[0042] A blood pump inlet can be fluidically connected, in particular directly, to a first line of the fluid lines. Another end of the first line can be fluidically connected, in particular directly, to the patient. The blood pump can be fluidically connected to the oxygenator via a second line of the fluid lines. An oxygenator outlet can be fluidically connected, in particular directly, to the patient via a third line of the fluid lines.

[0043] A fourth line of the fluid lines can be fluidically connected to the oxygenator at one end. Furthermore, the fourth line can be fluidically connected to a gas source at another end. The gas source can be a stationary gas supply, a gas cylinder, or a pneumatic control unit. As already described above, the blood pump can be driven without current. For this purpose, the blood pump can be fluidically connected to at least one fifth line of the fluid lines, in particular a plurality of fifth lines. The fifth line can be fluidically connected to the gas source at another end.

[0044] The fourth line and the fifth line can be fluidically connected to the same gas source. Furthermore, the fourth line and the fifth line can be connected to the same device for controlling or regulating a gas volume flow in the fourth line and / or the fifth line(s). In particular, the device can be fluidically connected to the fourth line and / or the fifth line.

[0045] The case's handle is located outside the case housing, allowing the case to be easily carried using the handle. The holding device fulfills multiple functions, such as enabling the case to be carried, securely aligning the oxygenator and blood pump, protecting and directionalizing fluid lines entering and exiting the case, and preventing relative movement between the oxygenator and blood pump.

[0046] The case may have a fastening device for attaching the case to an object, such as a hospital bed. The fastening device may be fixedly or movably connected to the case, in particular the case housing, and / or the frame of the holding device embedded therein, on one side, and to the object on the other side.

[0047] The fastening device can have a holder and a holder receptacle. The holder can be arranged in one position in the holder receptacle. In this position the case is not connected to the hospital bed. Furthermore, in another position the holder can partially protrude from the holder receptacle. In this position the case can be connected to the hospital bed. The holder can be hook-shaped at each of its ends. The two hook-shaped ends can be connected to one another by an intermediate web, wherein the intermediate web has a U-shaped section. The intermediate web is rotated by 90° when the holder is transferred from one position to the other. The holder cannot be rotated any further from the other position.Further rotation of the bracket is prevented by the U-shaped section abutting against a plate of the fastening device, thus easily preventing further rotation of the hook-shaped ends.

[0048] The holder can be movably connected to the case housing and / or the frame and can be removed from the holder receptacle, particularly by folding, pivoting, or plugging. This allows the case to be easily connected to the hospital bed.

[0049] The case can be designed to be sterile. In this version, the holding device, oxygenator, and blood pump cannot be replaced by the case user.

[0050] Alternatively, the case can contain a set of interchangeable oxygenators and / or a set of interchangeable blood pumps and / or a set of interchangeable holding devices. In this case, the user can preconfigure the case. In particular, the user can select a single oxygenator from the set of oxygenators, a single blood pump from the set of blood pumps, and a single holding device from the set of holding devices. The selected oxygenator and the selected blood pump are connected to the selected holding device. This design offers the advantage of greater flexibility in the use of the case.

[0051] The case can have a determining device, in particular a spirit level, for determining the orientation of the case. The determining device can be arranged in a recess in the case housing. In particular, the determining device can be arranged in a recess present in the first housing section and / or second housing section. By means of the determining device, the orientation of the case can be determined in at least one direction, in particular in two directions. In this case, the orientation of the case in the horizontal direction can be determined by means of the determining device. By providing the determining device, it is easily possible to ensure that the case is placed on a horizontal plane during use.

[0052] This is important to ensure that the oxygenator inlet is positioned vertically above a blood pump outlet during use.

[0053] Of particular advantage is a heart-lung machine comprising a case according to the invention, the gas source, and the control or regulation device that controls or regulates a volume flow of the gas supplied to the oxygenator and the blood pump. The device can be arranged fluidically between the gas source and the case and / or be fluidly connected to the gas source and the case.

[0054] The subject matter of the invention is schematically illustrated in the figures and is described below with reference to the figures, wherein identical or equivalent elements are generally provided with the same reference numerals. Fig. 1 shows a representation of a holding device according to the invention, Fig. 2 shows a representation of the holding device according to the invention from above, Fig. 3 shows a representation of a case according to the invention according to a first exemplary embodiment, Fig. 4 shows a representation of a first housing section of the case according to the invention according to the first exemplary embodiment, Fig. 5 shows a representation of a second housing section of the case according to the invention according to the first exemplary embodiment, Fig. 6 shows a representation of the case according to the invention according to the first exemplary embodiment without a closure lid, Fig. 7 shows a side sectional view of a case according to the invention according to a second exemplary embodiment with several fluid lines, Fig. 8 shows use of the case according to the invention according to the second exemplary embodiment in a hospital room, Fig. 9 shows use of the case according to the invention according to the second exemplary embodiment in an emergency situation, Fig.Fig. 10 is a representation of a part of a case according to the invention in accordance with a third exemplary embodiment, wherein a holder of a fastening device is in a folded-in position, Fig. 11 is a representation of the case according to the invention in accordance with the third exemplary embodiment, wherein the holder is in a folded-out position.

[0055] One in Figure 1 The holding device 1 shown for holding an oxygenator 2 and a blood pump 3 has a frame 4. The frame 4 can be provided with a Figure 3 The frame 4 is connected to the case housing 13 shown in a rotationally fixed manner and serves to secure the oxygenator 2 and the blood pump 3 relative to one another. The frame 4 has a frame section 5 and another frame section 6. The oxygenator 2 is connected to the frame section 5 in a rotationally fixed manner, and the blood pump 3 is connected to the other frame section 6 in a rotationally fixed manner.

[0056] The holding device 1 also has a handle 7, which is rotationally fixedly connected to the frame 4. In particular, the handle 7 is formed integrally with the frame 4. The handle 7 is rotationally fixedly connected to one end of the frame 4. The frame section 5 and the other frame section 6 are arranged at another end of the frame 4.

[0057] The frame section 5 and the other frame section 6 are arranged such that an oxygenator inlet is arranged closer to the handle 7 than a Figure 7The blood pump outlet 43 is shown, with the blood flowing out of the blood pump outlet 43 flowing into the oxygenator 2 via the oxygenator inlet. Thus, the blood pump outlet 43 is positioned further away from the handle 7 in the vertical direction than the oxygenator inlet 42, so that the direction of the blood flowing out of the blood pump 3 points obliquely upward. In particular, the blood pump 3 is arranged such that the blood flowing out of the blood pump 3 flows in a direction facing the handle 7. The blood flow direction increases vertically between the blood pump 3 and the oxygenator 2.

[0058] Figure 2 shows the holding device 1 from a different angle than Figure 1 . As from Figure 2 As can be seen, the handle 7 has a guide 8. The guide 8 is used to guide Figure 7 shown fluid lines and has a recess 10 in which the Figure 7shown fluid lines are arranged. In addition, the guide 8 has a plurality of projections 26 which project radially inward and prevent the fluid lines from falling out of the guide 8.

[0059] The frame 4 of the holding device 1 has another guide 9 for guiding at least one fluid line. The other guide 9 has another recess 11 in which the at least one fluid line is arranged. The other guide 9 has side walls 27 that prevent the fluid line from falling out of the other guide 9.

[0060] Figure 3 shows a case 12 according to the invention with the holding device 1, which is connected to a case housing 13 in a rotationally fixed manner and is partially arranged in the case housing 13. As can be seen from Figure 3As can be seen, the handle 7 is arranged outside the case housing 13. In addition, a part of the frame 4 protrudes from the case housing 13 through a through opening 25.

[0061] The case housing 13 has a first housing section 14 and a second housing section 15, which are connected to each other in a rotationally fixed manner. The case 12 also has a closure lid 20 that covers part of the second housing section 15.

[0062] A further through-opening 22 is provided on one side of the case 12. A branch line (not shown) can extend through the further through-opening 22, which is fluidically connected at one end to an analysis device (not shown). The blood drawn from the patient can be analyzed in the analysis device. The other end of the branch line (not shown) is connected to a connector through which blood can be branched off.

[0063] The case 12 has a base 44, via which the case 12 is placed on a support surface, such as a floor. The base 44 is arranged at the end of the case 12 opposite the handle 7 relative to a horizontal plane. When the case 12 is placed on the floor via the base 44, the case 12 is oriented such that the oxygenator inlet is positioned vertically above the blood pump outlet.

[0064] Figure 4shows a perspective view of the first housing section 14. The first housing section 14 has a first receptacle 16. The first receptacle 16 serves to hold a part of the frame 4, the oxygenator 2 and the blood pump 3. For this purpose, the first receptacle 16 has a part 28 which serves to hold the oxygenator 2. In addition, the first receptacle 16 has another part 29 which serves to hold the blood pump 3. In addition, the first receptacle 16 has a further part 41 which serves to hold a part of the frame 4.

[0065] The first housing section 14, together with the second housing section 15, delimits the through-opening 25 and the further through-opening 22. Furthermore, the first housing section 14, together with the second housing section 15, delimits a fluid outlet passage 21. The fluid outlet passage 21, formed jointly with the second housing section, allows a fluid, such as condensate, to flow out of the case housing 13.

[0066] Figure 5shows a perspective view of the second housing section 15. The second housing section 15 has a second receptacle 17. The second receptacle 17 serves to hold a part of the frame 4, the oxygenator 2 and the blood pump 3. For this purpose, the second receptacle 17 has a part 18 which serves to hold the oxygenator 2, and another part 19 which serves to hold the blood pump 3. Both the part 18 and the other part 19 of the second receptacle 17 are designed as an opening. In addition, the further part 40 of the second receptacle 17 which holds the part of the frame 4 is designed as an opening.

[0067] The second housing section 15 has a plurality of protrusions 30, which penetrate into corresponding holes provided in the first housing section 14 for connection to the first housing section 14. Furthermore, the second housing section 15 has a recess 31, which is also designed as an opening.

[0068] Figure 6 shows a case 12 without the closure lid 20. As Figure 6 As can be seen, due to the previously described configuration of the second recess 17, part of the oxygenator 2, part of the blood pump 3, and part of the frame 4 are exposed. This means that the components are visible from the outside. Spare parts and / or sensors and / or the branch line can be arranged in the recess 31.

[0069] The first receptacle 16 of the first housing section 14 and the second receptacle 17 of the second housing section 15 form a cavity in which the oxygenator 2, a part of the frame 4 and the blood pump 3 are arranged such that they cannot move relative to each other and / or relative to the case housing 13.

[0070] Figure 7shows a side sectional view of the case 12 according to a second embodiment with multiple fluid lines. The section is made in such a way that the interior of the case housing 13 is visible. As can be seen from Figure 7 As can be seen, the oxygenator 2 and the blood pump 3 are each fluidically connected to several fluid lines.

[0071] The fluid lines comprise a first line 32, which is fluidically connected at one end to a blood pump inlet 33. The first line 32 is fluidically connected to the patient at another end. A second line 34 of the fluid lines is fluidically connected at one end to a blood pump outlet 43. Furthermore, the second line 34 is fluidically connected at another end to the oxygenator 2, in particular to the oxygenator inlet. The blood flowing into the oxygenator 2 flows back to the patient via a third line 36 after the gas exchange.

[0072] In addition, the oxygenator 2 is fluidically connected to a fourth line 37. Gas is supplied to the oxygenator 2 via the fourth line 37. One end of the fourth line 37 is connected to a Figure 3 fluidly connected to a gas source not shown, such as a gas tank or a pneumatic control console.

[0073] The blood pump 3 is fluidically connected to three fifth lines 38. Gas, such as oxygen or air, is supplied to or removed from the blood pump 3 via the fifth lines 38. By supplying or removing the gas, a pumping action can be achieved, which ultimately determines the blood volume flow through the oxygenator 2.

[0074] In the Figure 7In the case 12 shown, all fluid lines are routed through the handle 7. All fluid lines extend in the same direction. The three fifth lines 38 are routed through the other guide 9 of the frame 4.

[0075] Figure 8 shows the use of the Figure 3 The illustrated case 12 is located in a hospital room. The case 12 is attached to a hospital bed 39. A patient lies in the hospital bed 39, from whom blood is drawn, which flows to the case 12. The blood enriched with oxygen in the oxygenator 2 flows back to the patient.

[0076] The case 12 is also fluidically connected via the fluid lines to a device 24 for controlling or regulating a gas volume flow in the fluid lines. By controlling or regulating the gas volume flow in the fluid lines, the blood volume flow delivered by the blood pump 3 and the gas volume flow supplied to the oxygenator 2 can be controlled or regulated. In this application, the device 24 is mounted on a wall of the hospital room and fluidically connected to the oxygenator 2 and / or the blood pump 3 via fluid lines. The device 24 is fluidly connected to at least one gas source (not shown).

[0077] The Figure 8 The version shown differs from the one in Figure 7illustrated embodiment in that the fluid lines fluidically connected to the patient extend from the handle 7 in a different direction than the other fluid lines connected to the device 24. The fluid lines fluidically connected to the patient can also extend in different directions if patient access is provided at different parts of the body.

[0078] Figure 9 shows the use of the Figure 3 The case 12 shown in the illustration is used in an emergency situation in which a patient lying on the floor has acute cardiac or pulmonary insufficiency. The case 12 is placed on the floor. Figure 9 is analogous to Figure 8 It can be seen that the case 12 is fluidically connected to the patient via respective fluid lines. In addition, Figure 9It can be seen that the case 12 is fluidically connected to the control or regulating device 24. The control or regulating device 24 is fluidically connected to the gas source 23, wherein the device 24 is fluidically arranged between the gas source 23 and the case 12.

[0079] Figure 10 shows a representation of a part of a case 12 according to the invention according to a third exemplary embodiment. The case 12 has a fastening device 45 which is attached to the first housing section 14. The fastening device 45 has a holder 46 and a holder receptacle 47. The holder 46 is, as can be seen from Figure 11 As can be seen, it is hook-shaped at both ends. The two hook-shaped ends are connected by an intermediate web 48. The intermediate web 48 has a U-shaped section in the middle. The intermediate web 48 is in Figure 10This is evident because a plate 49 of the fastening device 45 is shown partially transparent. The plate 49 covers part of the mounting receptacle 47.

[0080] At the Figure 10 In the position shown, the holder 46 is arranged in the holder receptacle 47. In this position of the holder 46, the case 12 cannot be connected to the hospital bed.

[0081] Figure 11 shows the case 12 according to the third embodiment, with the holder 46 in a folded-out position. The hook-shaped ends of the holder 46 protrude from the holder receptacle 47 and the first housing section 14, respectively, and can be connected to the hospital bed (not shown).

[0082] To transfer the holder 46 from the Figure 10 shown folded position into the position shown in Figure 11In the unfolded position shown, the holder 46 is rotated in one direction. Further rotation of the holder in this direction is not possible because the U-shaped section of the intermediate web 48 abuts against the plate 49 and thus prevents further rotation of the holder 46. The U-shaped section is in the Figure 11 shown position of the bracket 46 in the Figure 10 visible recess. List of reference symbols:

[0083] 1Holding device 2Oxygenator 3Blood pump 4Frame 5Frame section 6Other frame section 7Handle 8Guide 9Other guide 10Recess 11Other recess 12Case 13Case housing 14First housing section 15Second housing section 16First receptacle 17Second receptacle 18Part of the second receptacle 19Other part of the second receptacle 20Covering lid 21Fluid outlet passage 22Other passage opening 23Gas source 24Device for controlling or regulating 25Passage opening 26Protrusion 27Side wall 28Part of the first receptacle 29Other part of the first receptacle 30Highlight 31Recess 32First line 33Blood pump inlet 34Second line 36Third line 37Fourth line 38Fifth line 39Hospital bed 40Other Part of the second receptacle 41Further part of the first receptacle 43Blood pump outlet 44Standing surface 45Fastening device 46Bracket 47Bracket receptacle 48Intermediate web 49Plate

Claims

1. Case (12) with a holding device (1) for holding an oxygenator (2) and a blood pump (3), which has a frame (4) which can be connected in a rotationally fixed manner to a case housing for fixing the oxygenator (2) and the blood pump (3) relative to one another, wherein the frame (4) has a frame section (5) for connecting in a rotationally fixed manner to the oxygenator (2) and another frame section (6) for connecting in a rotationally fixed manner to the blood pump (3), wherein the holding device (1) is partially arranged in the case housing, and characterized in that the holding device (1) has a handle (7), that the handle (7) is connected in a rotationally fixed manner to the frame (4), and that the handle (7) is arranged outside the case housing.

2. Case (12) with a holding device (1) according to Claim 1, characterized in that the holding device (1) is connected to the case housing (13) in a rotationally fixed manner.

3. Case (12) according to Claim 1 or 2, characterized in that the case housing (13) has a first housing section (14) and a second housing section (15), wherein the first housing section (14) and the second housing section (15) are releasably connected to one another in a rotationally fixed manner.

4. Case (12) according to Claim 3, characterized in that a. the oxygenator (2) and the blood pump (3) are connected to the frame (4) in a rotationally fixed manner or that b. a first receptacle (16) of the first housing section (14) and a second receptacle (17) of the second housing section (15) form a cavity in which a part of the frame (4) and the oxygenator (2) and the blood pump (3) are arranged and that c. at least a part of the frame (4) and the oxygenator (2) and the blood pump (3) are at least partially embedded in the first housing section (14) and the second housing section (15).

5. Case (12) according to Claim 4, characterized in that a. for partially releasing the oxygenator, a part of the second receptacle (18) accommodating the oxygenator (2) is designed as an opening and that b. for partially releasing the blood pump, another part of the second receptacle (19) accommodating the blood pump is designed as an opening and that c. for partially releasing the part of the frame (4), a further part of the second receptacle (40) accommodating the frame (4) is designed as an opening and that d. the second housing section (15) has a recess (31).

6. Case (12) according to Claim 5, characterized in that the case (12) has a closure lid (20) for closing the part of the second receptacle (18) and the other part of the second receptacle (19) and the further part of the second receptacle (40) and the recess (31).

7. Case (12) according to one of Claims 3 to 6, characterized in that the first housing section (14) and the second housing section (15) have a through-opening (25), a. through which the fluid line fluidically connected to the oxygenator (2) and the blood pump (3) exits the case housing (13) or through which a plurality of fluid lines fluidically connected to the oxygenator (2) and the blood pump (3) exit the case housing (13) and b. through which a part of the frame (4) extends.

8. Case (12) according to one of Claims 3 to 7, characterized in that a. the case (12) has a fluid outlet passage (21) through which a fluid can flow out of the first housing section (14) and the second housing section (15) and that b. the case (12) has a further through-opening (22) through which at least one branch line for supplying blood to an analysis device extends.

9. Case (12) according to one of Claims 1 to 8, characterized in that the blood pump (3) can be driven without current.

10. Case (12) according to one of Claims 2 to 9, characterized in that the handle (7) and the frame (4) are made in one piece.

11. Case (12) according to one of Claims 1 to 10, characterized in that the case (12) has a fastening device (45) for fastening the case (12) to an object.

12. Case (12) according to one of Claims 1 to 11, characterized by a standing surface (44) which is designed and arranged such that an oxygenator inlet (42) is arranged in the vertical direction above a blood pump outlet (43) when the case (12) is placed on a storage surface by means of the standing surface (44).

13. Case (12) according to one of Claims 1 to 12, characterized in that a. at least one fluid line and at least one branch line are connected to a return element for returning the part of the fluid line and the branch line extending out of the case housing into the case housing.

14. Case (12) according to one of Claims 1 to 13, characterized in that the case (12) has a set of interchangeable oxygenators and a set of interchangeable blood pumps and a set of interchangeable holding devices.

15. Heart-lung machine with a case (12) according to one of Claims 1 to 14, a gas source (23) and a device connected to the gas source (23) and the case (12) for controlling or regulating (24) a blood volume flow conveyed by the blood pump (3) and a gas volume flow flowing through the oxygenator (2).