JP5682399B2 - Artificial lung holder - Google Patents

Description

  The present invention relates to a structure of a holder for holding an oxygenator for constituting an oxygenator circuit in a desired state during an operation.

  For example, in cardiac surgery, extracorporeal blood circulation is performed in which blood is removed from a patient's vein using a blood pump, gas exchange is performed using an artificial lung, and then the blood is returned to the patient's artery. An artificial lung is generally configured in combination with a heat exchange device, and includes a gas exchange unit (artificial lung unit) that exchanges carbon dioxide in blood with oxygen taken from outside, and a heat exchange unit that adjusts the temperature of blood. I have. In addition, when used for extracorporeal blood circulation, the artificial lung is connected to a blood reservoir for temporarily storing blood that has been removed from blood or blood that has been aspirated from the surgical field.

  These various devices constituting the extracorporeal blood circulation circuit are arranged so that the distance between the devices is shortened in order to suppress the occupied space in the operating room. In addition, in order to avoid an increase in the priming volume in the extracorporeal blood circulation circuit, adjustment is made so as to take an efficient arrangement that minimizes the routing of the circuit tube connecting the devices.

  In order to satisfy such requirements regarding the arrangement of various devices including an oxygenator, for example, Patent Document 1 discloses a structure in which an oxygenator is integrally connected to the bottom of a blood reservoir. In particular, Patent Document 1 intends a structure suitable for disposing the blood reservoir toward the operator so that the blood reservoir volume can be easily seen during surgery. That is, in a blood reservoir with an artificial lung combined integrally, the artificial lung cannot be installed in the direction with the best tube piping efficiency, and at the same time, the blood reservoir cannot be installed in a direction that is easy for the operator to visually recognize. Therefore, in Patent Document 1, the artificial lung can be set in a necessary direction while giving priority to the visibility of the blood reservoir.

  That is, in the apparatus disclosed in Patent Document 1, a joint portion that is joined to each other and relatively rotatable between the artificial lung and the blood reservoir is bonded to the bottom surface of the blood reservoir and the upper portion of the artificial lung that are joined to each other. Is provided. Specifically, a cylindrical joint is provided in the upper part of the artificial lung housing, and a cylindrical joint having a larger outer diameter is provided in the lower part of the blood reservoir. The cylindrical joint of the oxygenator is inserted into the cylindrical joint of the blood reservoir, and both of the cylindrical joints are coupled in a relatively rotatable state by the engagement of the groove and the convex portion. The This makes it possible to set the direction of the blood reservoir and the direction of the artificial lung to the required directions.

JP-A-5-345019

  Like the example of the said patent document 1, the blood reservoir and artificial lung of the same manufacturer are comprised so that a blood reservoir and an artificial lung can be couple | bonded in a favorable state mutually. However, the configuration of the circulatory circuit used during extracorporeal blood circulation varies depending on cases and facilities, and may occur when a blood reservoir and an artificial lung are used in combination from different manufacturers.

  Since the joint structure of the blood reservoir and oxygenator of each manufacturer is not unified, a holder suitable for holding the oxygenator is required when using a blood reservoir and oxygenator of different manufacturers in combination. Such an oxygenator holder is required to be securely held, easy to operate when attaching the oxygenator to the holder, and easy to adjust the orientation of the oxygenator. The

  On the other hand, the artificial lung holder desirably has a structure for holding the artificial lung in a suspended state, similarly to the configuration attached to the lower part of the blood reservoir in the case of Patent Document 1. Therefore, when attaching the artificial lung to the holder, it is necessary to lift the artificial lung, align it with the holder from below, and engage it. Such an operation is complicated, and particularly when an emergency operation is necessary, it is a heavy burden on the medical staff.

  Therefore, an object of the present invention is to provide an artificial lung holder that can easily adjust the orientation of the artificial lung when producing an extracorporeal blood circulation circuit and can be produced at a low cost with a simple configuration.

  It is another object of the present invention to provide an oxygenator holder that can easily perform an operation of attaching an oxygenator.

  The oxygenator of the present invention is detachable from the oxygenator by engagement with an oxygenator joint provided on the upper part of the oxygenator, and is supported by an external device in a state of being coupled to the oxygenator. Thus, the artificial lung is configured to be held in a desired posture.

  In order to solve the above-mentioned problems, the oxygenator of the present invention forms an engagement space into which the oxygenator joint can be inserted, and is engageable with the oxygenator joint inserted into the engagement space. A structured oxygenator holding member, a cylindrical portion, a movable connecting member in which the oxygenated lung holding member is fixed to a lower portion of an inner space of the cylindrical portion, an annular shape, and the annular shape The cylindrical portion of the movable connecting member is fitted inside and connected to the movable connecting member so as to be able to rotate with each other, and a holder support provided on the outer peripheral portion of the annular shape by an external device. A holder ring that can be supported, and a rotation adjustment member that is attached to the holder ring and that adjusts to prevent or allow the movable connecting member to rotate. And

  According to the above configuration, since the holder ring is annular, the movable connecting member can be rotated steplessly over 360 degrees. For example, when the artificial lung is to be moved a little, the rotation adjusting member can be loosened and the position can be easily adjusted with the artificial lung attached to the holder. In addition, a special mechanism is not required, and the manufacturing cost can be easily reduced because it can be reliably manufactured by simply specifying the tolerance range with a simple configuration.

The perspective view which shows the state which the artificial lung holder in embodiment of this invention couple | bonded with the artificial lung The perspective view which shows the installation state of the artificial lung holder Cross-sectional perspective view showing the artificial lung holder combined with the artificial lung joint Perspective view from above of the oxygenator Perspective view from below of the oxygenator Front view of the artificial lung holder Bottom view of the oxygenator Perspective view showing the internal structure of the oxygenator with broken lines Front view showing simplified joint structure of artificial lung holder and artificial lung joint Sectional drawing along the AA line of FIG. 6 of the artificial lung holder Sectional drawing along the BB line of FIG. 7 of the artificial lung holder

  The artificial lung holder of the present invention can take the following aspects based on the above configuration.

  That is, the rotation adjusting member includes a locking screw that is screwed into and penetrating the holder ring, and a buffer member that is disposed between the tip of the locking screw and the cylindrical portion of the movable connecting member. It is preferable that the movable connecting member is prevented from rotating with respect to the holder ring by rotating the locking screw to bring the buffer member into contact with the outer peripheral surface of the cylindrical portion. As described above, the rotation adjustment by the locking screw is performed from the lateral direction of the holder ring via the buffer member, so that the rotation is stably fixed. This is because a locking action by a frictional force in a wide area due to contact between the peripheral surfaces of the holder ring and the movable connecting member can be obtained. Further, by applying the locking screw via the buffer member, the durability of the cylindrical portion is improved as compared with the case where the locking screw is brought into direct contact with the cylindrical portion.

  An artificial lung attachment / detachment guide having an urging plate portion disposed above the artificial lung holding member so as to be vertically movable in an inner space of the cylindrical portion of the movable connecting member, and the urging plate portion And a sliding guide having a spring mechanism for urging the urging plate portion downward, and engaging the artificial lung joint with the artificial lung holding member. When the artificial lung joint is inserted into the space, the upper end of the artificial lung joint comes into contact with the artificial lung attachment / detachment guide, and the artificial lung joint and the artificial lung are inserted by inserting the artificial lung joint against the urging force of the spring mechanism. It can be set as the structure which can engage a holding member.

  By maintaining the sliding guide at three points, the posture of the urging plate can be reliably maintained. That is, positioning is difficult with a two-point sliding guide, but positioning is assured with a minimum number of three points. Thereby, operation which inserts an artificial lung joint in the engagement space of an artificial lung holding member can be performed appropriately. Further, by attaching an urging spring to the sliding guide and obtaining an urging action, an operation of fixing by simply inserting the artificial lung becomes possible.

  Further, the movable connecting member is provided with an end plate portion formed so as to cover an upper end inner portion of the cylindrical portion, and the sliding guide is mounted between the end plate portion and the artificial lung attachment / detachment guide. It can be set as the structure currently made.

  In addition, the end plate portion of the movable connecting member has an opening at a central portion, and the artificial lung attachment / detachment guide extends upward from the upper surface of the central portion of the biasing plate portion and the opening of the end plate portion And an operating shaft that protrudes upward from the end plate portion.

  The artificial lung attachment / detachment guide includes a guide convex portion having a columnar shape having a smaller diameter than the biasing plate portion and extending downward from a lower end of the biasing plate portion, and the guide convex portion is configured as the artificial convex portion. A gap is formed between the outer peripheral surface of the guide protrusion and the inner surface of the artificial lung holding member, and the cylindrical artificial lung joint is positioned in the engagement space of the lung holding member. When the artificial lung joint is inserted into the engagement space, the artificial lung joint enters the gap between the guide convex portion and the artificial lung holding member, and the guide convex portion is fitted inside the cylinder of the artificial lung joint. It can be set as the structure by which mounting | wearing of a lung joint is guided.

  The artificial lung attachment / detachment guide is provided to facilitate the operation of attaching the artificial lung to the artificial lung holder. In order to maintain a drop pressure during extracorporeal circulation, an artificial lung is often installed by being lowered to a floor surface position. Therefore, the attachment operation cannot be performed by visually observing the engagement space inside the artificial lung holding member. On the other hand, according to the action of the artificial lung attachment / detachment guide, it is possible to easily perform an appropriate insertion only with a sense without looking at the insertion portion.

  Moreover, it is preferable that the said oxygenator holding member is comprised so that it may contact | abut at 2 points | pieces which oppose the said oxygenator joint in radial direction. Since the contact portions are arranged at two points facing each other in the radial direction, the artificial lung joint can be smoothly inserted. On the other hand, when the contact location is one, the spring load is not transmitted in a good balance when inserting the artificial lung joint, and it is difficult to insert.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<Embodiment>
FIG. 1 is a perspective view showing a state in which an artificial lung holder 1 according to an embodiment of the present invention is coupled to an artificial lung 2. The artificial lung holder 1 and the artificial lung 2 are connected by a connection region 3. The oxygenator holder 1 is detachable from the oxygenator 2 by engagement with an oxygenator joint (not shown in FIG. 1, which will be described later) provided on the oxygenator 2. The oxygenator 2 can be held in a desired posture by supporting the oxygenator 1 with an external device.

  The artificial lung 2 has a housing 4 in which a gas exchange part and a heat exchange part are accommodated, and a blood introduction port 5 which is one end of a blood flow path is provided outside the housing 4. A cold / hot water inlet port 6 and a cold / hot water outlet port 7 are respectively provided at the left and right lower ends of the artificial lung housing 4. Although not shown in FIG. 1, a blood discharge port, a gas introduction port, and a gas discharge port are also provided.

  The artificial lung holder 1 has a structure in which a cylindrical portion 9 a of a movable connecting member 9 is fitted inside an annular holder ring 8. Since it is connected by fitting at the cylindrical portion 9 a, the movable connecting member 9 can rotate with respect to the holder ring 8. Further, the locking screw 10 mounted on the holder ring 8 can be adjusted so as to prevent the mutual rotation or to release the rotation. A cylindrical oxygenator holding member 11 is fixed to the lower part of the cylindrical portion 9 a of the movable connecting member 9. The artificial lung holding member 11 is provided with an engagement groove 11a constituting a joint portion, and can be engaged with an artificial lung joint provided on the upper part of the artificial lung 2. By this engagement, the oxygenator 1 is detachably coupled to the oxygenator 2. An operation knob 12 protrudes above the movable connecting member 9 and is used to operate the state of engagement of the oxygenator joint with the engagement groove 11a.

  Thus, when the holder ring 8 is annular, the movable connecting member 9 can be rotated steplessly over 360 degrees. For example, when configuring the blood circulation circuit (when attaching a tube, etc.), if you want to move the oxygenator 2 slightly, with the oxygenator attached to the holder, loosen the locking screw 10 and adjust the position. Can be easily performed. In addition, a special mechanism is not required, and the manufacturing cost can be reduced because it can be reliably manufactured by only specifying a tolerance range with a simple configuration.

  The holder ring 8 has a holder support portion 8a on the outer peripheral portion thereof. By coupling the holder support portion 8a with an external device, the holder ring 8 is supported by the external device, and the oxygenator 2 can be held in a desired posture. FIG. 2 shows a state in which the artificial lung holder 1 is so installed. As shown in the figure, the holder support 8a is coupled to the suspension rod 100, and the suspension rod 100 is fixed to the clamp device 101, whereby the oxygenator 2 is held in a desired position and posture via the oxygenator holder 1. Is done. The external device for supporting the holder ring 8 is not limited to such a structure, and the holder ring 8 can be configured to be supported by any known device.

  The structure of the artificial lung holder 1 will be described in more detail with reference to FIGS. FIG. 3 is a perspective cross-sectional view showing a state in which the oxygenator 1 is coupled to the joint (artificial lung joint 13) of the artificial lung 2. FIG. 4 is a perspective view of only the oxygenator holder 1 from which the oxygenator joint 13 is removed as viewed from above. FIG. 5 is a perspective view of the artificial lung holder 1 as viewed from below. 6 is a front view of the oxygenator 1, and FIG. 7 is a bottom view.

  FIG. 3 shows a cylindrical oxygenator joint 13 provided on the upper side of the oxygenator (the main body of the artificial lung is not shown). The artificial lung holding member 11 is provided with an engaging groove 11a (see FIGS. 4 to 6), and the artificial lung joint 13 forms a joint structure that can be engaged with the engaging groove 11a. Specifically, an engagement protrusion 13 a protruding in the radial direction is provided on the surface of the artificial lung joint 13. As shown in FIG. 5, the engagement groove 11a has an L shape. That is, the engaging groove 11a includes the longitudinal groove 11ax formed along the axial direction from the opening end of the cylindrical portion of the oxygenator holding member 11, and the transverse groove 11ay formed along the circumferential direction from the end of the longitudinal groove 11ax. It consists of and.

  As can be seen from FIG. 3 or FIG. 5, an engagement space into which the artificial lung joint 13 can be inserted is formed inside the engagement groove 11 a, and by inserting the artificial lung joint 13, the engagement space 11 a The engagement protrusion 13a can be engaged. As shown in FIGS. 5 and 7, the engagement grooves 11 a are provided at intervals of 90 degrees in the circumferential direction, that is, at four locations in the circumferential direction. Similarly, the engagement protrusions 13a are provided at four locations in the circumferential direction. Of the four engagement grooves 11a, lock members 18 are disposed in two opposing grooves. The lock member 18 will be described later.

  As shown in FIG. 3, the movable connecting member 9 is formed by extending a cylindrical portion 9a, an end plate portion 9b formed so as to cover an inner portion of the upper end thereof, and extending outward from the upper end of the cylindrical portion 9a. And a flange portion 9c. The oxygenator holding member 11 is fixed to the lower part of the inner space of the cylindrical portion 9a. The artificial lung holding member 11 is fixed by a fixing screw 14.

  An artificial lung attachment / detachment guide 15 is also mounted in the inner space of the cylindrical portion 9a so as to be movable in the vertical direction. The artificial lung attachment / detachment guide 15 includes an urging plate portion 15a, a guide convex portion 15b, and an operation shaft 15c. The urging plate portion 15 a is disposed on the upper part of the artificial lung holding member 11. In order to make the biasing plate portion 15a movable in the vertical direction, the biasing plate portion 15a is provided with a through hole having a diameter larger than the outer shape of the fixing screw 14, and the fixing screw 14 passes through the through hole and the artificial lung holding member. 11 is screwed. The guide convex portion 15b has a columnar shape having a smaller diameter than the biasing plate portion 15a, and extends downward from the lower end of the biasing plate portion 15a. The guide convex portion 15 b is located in the engagement space inside the artificial lung holding member 11, and a gap is formed between the outer peripheral surface of the guide convex portion 15 b and the inner surface of the artificial lung holding member 11.

  This gap is provided for positioning and mounting the artificial lung joint 13 formed in a cylindrical shape between the guide convex portion 15 b and the artificial lung holding member 11. That is, when the artificial lung joint 13 is inserted into the engagement space, the artificial lung joint 13 is guided so as to enter the gap between the guide convex portion 15 b and the artificial lung holding member 11. That is, the guide convex portion 15b is inserted into the cylinder of the oxygenator joint 13, the center of the oxygenator joint 13 is appropriately positioned, and the oxygenator holding member 11 and the oxygenator joint 13 can be easily coupled. It becomes.

  Thus, the artificial lung attachment / detachment guide 15 is provided to facilitate the operation of attaching the artificial lung 2 to the artificial lung holder 1. The artificial lung 2 is often installed by being lowered to the floor surface position in order to maintain a drop pressure during extracorporeal circulation. For this reason, it is usually difficult to perform the mounting operation by visually observing the engagement space inside the artificial lung holding member 11. On the other hand, due to the action of the artificial lung attachment / detachment guide 15 as described above, it is possible to easily perform appropriate insertion only by feeling without looking at the insertion portion.

  An opening is provided in the center of the end plate portion 9 b of the movable connecting member 9. The operation shaft 15c of the artificial lung attachment / detachment guide 15 extends upward from the upper surface of the central portion of the urging plate 15a, and protrudes upward through the opening of the end plate 9b. An operation knob 12 is attached to the upper end of the operation shaft 15c.

  A shaft-shaped sliding guide 16 is provided between the end plate portion 9b and the upper surface portion of the biasing plate portion 15a. FIG. 8 shows a perspective view in which the internal structure of the artificial lung holder 1 is drawn with a broken line in order to make the arrangement and function of the sliding guide 16 easier to understand. However, the holder ring 8 is not shown in the figure. The sliding guide 16 is provided at three locations in the circumferential direction, and guides the vertical movement of the urging plate portion 15a at three points. The lower end of the sliding guide 16 is fixed to the urging plate portion 15a, and the upper end portion is slidable in a through hole provided in the end plate portion 9b. A biasing spring 17 is mounted on the sliding guide 16 to constitute a spring mechanism that biases the biasing plate portion 15a downward.

  By the action of the sliding guide 16 and the urging spring 17, it is possible to appropriately maintain the posture of the oxygenator 2 when the oxygenator joint 13 is inserted into the engagement space of the oxygenator holding member 11. That is, when the artificial lung joint 13 is inserted into the engagement space of the artificial lung holding member 11, the upper end of the artificial lung joint 13 abuts on the artificial lung attachment / detachment guide 15 and lifts upward (actually, as described later, (By contact between the mating protrusion 13a and the lock member 18). By inserting the artificial lung joint 13 against the urging force of the urging spring 17, the three urging springs 17 give an equal urging force to the artificial lung joint 13. Thereby, the balance of the posture of the oxygenator 2 is maintained, and the operation of engaging the engaging protrusion 13a with the engaging groove 11a can be easily performed.

  By setting the sliding guide 16 to three points, the action of maintaining the posture of the urging plate portion 15a is optimized. That is, with the two-point slide guide 16, it is difficult to slide and positioning is difficult when a biased force is applied to one side, but with three points, smooth sliding with a minimum number and stable Positioning is possible. Thereby, when inserting the artificial lung joint 13 into the engagement space of the artificial lung holding member 11, an appropriate guide action is obtained. Further, by attaching the urging spring 17 to the sliding guide 16 to obtain the urging action, it is possible to perform the fixing operation by simply inserting the artificial lung joint 13 as described later.

  As shown in FIG. 4, the holder support portion 8a of the holder ring 8 is provided with a coupling female screw 8b, and the distal end portion of the suspension rod 100 shown in FIG. 4-7, the cylindrical portion 9a of the movable connecting member 9 is provided with notches at intervals of 180 degrees, and a stopper 11b provided on the artificial lung holding member 11 passes through the notches. Projecting outward. The planar arrangement of this structure is shown in FIG. Since the stopper 11b contacts the lower end of the cylindrical portion 9a at the notch, when the artificial lung holding member 11 is fixed to the movable connecting member 9 with the fixing screw 14, the stopper 11b is interposed between the end plate portion 9b and the artificial lung holding member 11. It functions as a positioning member for maintaining the interval. The stopper 11 b also has a function of sandwiching the holder ring 8 between the flange portion 9 c of the movable connecting member 9 and holding the fitting between the holder ring 8 and the movable connecting member 9.

  The engagement structure of the engagement protrusion 13a and the engagement groove 11a of the artificial lung joint 13 will be described in more detail with reference to the schematic diagram of FIG. FIG. 9 shows a state in which the engagement of the engagement protrusion 13a with the engagement groove 11a is completed. As shown in this figure, the lock member 18 shown in FIGS. 5 and 7 is disposed so as to close the upper portion of the longitudinal groove 11ax. The lock member 18 is fixed to the biasing plate portion 15a. Due to the coupling, the artificial lung attachment / detachment guide 15 moves up and down as the lock member 18 moves up and down. Therefore, the artificial lung attachment / detachment guide 15 moves upward by lifting the engagement protrusion 13a against the lock member 18. A fixing structure of the lock member 18 to the urging plate portion 15a is shown in FIG. FIG. 10 is a cross-sectional view taken along the line AA of the oxygenator 1 in FIG. The upper portion of the lock member 18 is fitted to the upper surface of the urging plate portion 15 a and is fixed by a screw 19.

  In order to engage the engaging protrusion 13a with the engaging groove 11a, first, the artificial lung holding member 11 and the artificial lung joint 13 are aligned so that the engaging protrusion 13a fits in the vertical groove 11ax. Then, the engagement protrusion 13a is brought into contact with the lock member 18 and lifted, and moved upward until reaching the upper end of the vertical groove 11ax. Next, the artificial lung holding member 11 and the artificial lung joint 13 are rotated with respect to each other, and the engagement protrusion 13 is fed into the inner side of the lateral groove 11ay to complete the engagement. In this process, the contact between the engagement protrusion 13a and the lock member 18 is released, so that the artificial lung attachment / detachment guide 15 is lowered by the action of the urging spring 17 and has the arrangement shown in FIG.

  In this state, the lock member 18 returns to the arrangement shown in FIG. 9, and the rightward movement of the engagement protrusion 13a in the lateral groove 11ay is prevented. As a result, the engagement between the oxygenator holding member 11 and the oxygenator joint 13 is locked. In order to release this locked state, the operation knob 12 is held and the artificial lung attachment / detachment guide 15 is moved upward. As a result, the lock member 18 moves upward and disengages from the vertical groove 11ax, so that the engagement protrusion 13a can be moved to the right.

  As described above, another well-known structure may be employed as the joint for inserting the artificial lung joint 13 into the engagement space and coupling it with the artificial lung holding member 11.

  As described above, the engagement locations by the engagement grooves 11a and the engagement projections 13a are arranged at four locations in the circumferential direction, and the artificial lung joint 13 can be inserted and engaged with the arrangement locations. And the locking member 18 is arrange | positioned at two places of the circumferential direction, and it is possible to prevent the uneven attachment. On the other hand, if the lock member 18 is at one place, the spring load does not act in a well-balanced manner when the oxygenator 13 is inserted, making it difficult to insert.

  Next, the locking screw 10 attached to the holder ring 8 will be described with reference to FIGS. 10 and 11. 11 is a cross-sectional view of the artificial lung holder 1 taken along line BB in FIG.

  The locking screw 10 is screwed into a screw hole provided in the holder ring 8 and penetrates the holder ring 8 toward the cylindrical portion 9 a of the movable connecting member 9. A buffer member 20 is disposed between the tip of the locking screw 10 and the cylindrical portion 9a. The locking screw 10 and the buffer member 20 constitute a rotation adjusting member for performing an adjustment for preventing the movable connecting member 9 from rotating or opening so that the movable connecting member 9 can rotate. That is, the movable connecting member 9 can be prevented from rotating with respect to the holder ring 8 by rotating the locking screw 10 to bring the buffer member 20 into contact with the outer peripheral surface of the cylindrical portion 9a.

  As described above, the rotation adjustment by the locking screw 10 is performed from the lateral direction of the holder ring 8 through the buffer member 20, so that the rotation can be fixed in a stable state. That is, by pressing with the locking screw 10, the holder ring 8 and the peripheral surface of the movable connecting member 9 are brought into contact with each other, and a locking action by a frictional force in a wide area can be obtained. ing. On the other hand, for example, in the case of the structure in which the cylindrical portion 9a of the movable connecting member 9 is locked from the end surface, the frictional force is applied in a small area, and thus the rotation is not fixed stably. In addition, since a load is excessively applied at one place of locking, it is necessary to install a fixing screw at a symmetrical position on the circumference of the cylindrical portion 9a. Furthermore, by applying the locking screw 10 via the buffer member 20, the cylinder is formed in accordance with the size of the buffer member 20 as compared with the case where the locking screw 10 is brought into direct contact with the cylindrical portion 9a. The durability of the portion 9a is improved.

  According to the artificial lung holder of the present invention, it is easy to adjust the orientation of the artificial lung when producing an extracorporeal blood circulation circuit, and it can be produced at a low cost with a simple configuration. It is useful as an apparatus for holding an artificial lung for use in a medical device.

DESCRIPTION OF SYMBOLS 1 Artificial lung holder 2 Artificial lung 3 Connection area | region 4 Housing 5 Blood introduction port 6 Cold / warm water introduction port 7 Cold / warm water discharge port 8 Holder ring 8a Holder support part 8b Connection internal thread 9 Movable connection member 9a Cylindrical part 9b End plate part 9c Gutter part DESCRIPTION OF SYMBOLS 10 Locking screw 11 Artificial lung holding member 11a Engaging groove 11b Stopper 12 Operation knob 13 Artificial lung joint 13a Engaging protrusion 14 Fixing screw 15 Artificial lung attaching / detaching guide 15a Energizing plate part 15b Guide convex part 15c Operating shaft 16 Sliding guide 17 Biasing spring 18 Lock member 19 Screw 20 Buffer member 100 Suspension rod 101 Clamp device

Claims (7)

The artificial lung is detachable from the artificial lung by engagement with an artificial lung joint provided on the upper side of the artificial lung, and is supported by an external device in a state of being coupled to the artificial lung. An artificial lung holder configured to be held in a posture,
Forming an engagement space into which the artificial lung joint can be inserted, and an oxygenator holding member configured to be engageable with the oxygenator joint inserted into the engagement space;
A movable connecting member having a cylindrical portion, wherein the artificial lung holding member is fixed to a lower portion of the inner space of the cylindrical portion;
An annular shape, and the cylindrical portion of the movable connecting member is fitted inside the annular shape, and is connected to the movable connecting member so as to be rotatable relative to each other. A holder ring that can be supported by an external device with a holder support provided in the unit;
An artificial lung holder, comprising: a rotation adjusting member that is attached to the holder ring and that adjusts to prevent rotation of the movable connecting member or to enable rotation. The rotation adjusting member includes a locking screw that is screwed into and penetrating the holder ring, and a buffer member disposed between a tip of the locking screw and the cylindrical portion of the movable connecting member,
The rotation of the movable connecting member with respect to the holder ring is prevented by rotating the locking screw to bring the buffer member into contact with the outer peripheral surface of the cylindrical portion. Artificial lung holder. An artificial lung attachment / detachment guide having an urging plate portion disposed on an upper portion of the artificial lung holding member so as to be vertically movable in an inner space of the cylindrical portion of the movable connecting member;
A sliding guide having a spring mechanism for biasing the biasing plate portion downward while guiding the vertical movement of the biasing plate portion at three points;
When the artificial lung joint is inserted into the engagement space of the artificial lung holding member, the upper end of the artificial lung joint comes into contact with the artificial lung attachment / detachment guide, and the artificial lung joint is resisted against the urging force of the spring mechanism. The oxygenator according to claim 1 or 2, wherein the oxygenator can be engaged with the oxygenator holding member by being inserted. The movable connecting member is provided with an end plate portion formed to cover an upper end inner portion of the cylindrical portion,
The oxygenator according to claim 3, wherein the sliding guide is mounted between the end plate portion and the oxygenator attachment / detachment guide. The end plate portion of the movable connecting member has an opening in the center,
The artificial lung attachment / detachment guide is provided with an operation shaft that extends upward from the upper surface of the central portion of the biasing plate portion and penetrates the opening of the end plate portion and protrudes above the end plate portion. 4. The artificial lung holder according to 4. The artificial lung attachment / detachment guide has a columnar shape having a smaller diameter than the biasing plate portion and includes a guide convex portion extending downward from a lower end of the biasing plate portion,
The guide protrusion is located in the engagement space of the oxygenator holding member, and a gap is formed between the outer peripheral surface of the guide protrusion and the inner surface of the oxygenator holding member,
When the artificial lung joint formed in a cylindrical shape is inserted into the engagement space, the artificial lung joint enters the gap between the guide convex portion and the artificial lung holding member, and the inside of the cylinder of the artificial lung joint The artificial lung holder according to claim 3, wherein the guide convex portion is inserted into the artificial lung joint to guide the attachment of the artificial lung joint.   The oxygenator according to any one of claims 1 to 6, wherein the oxygenator holding member is configured to abut on the oxygenator joint at two points that are radially opposed to each other.

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