CN111701101A - a blood purification device - Google Patents

Abstract

The invention relates to a blood purification device, which belongs to the technical field of medical devices. The blood purification equipment includes a solution heating device arranged on the main body of the device, the solution heating device includes more than two first heating chambers, and is used for releasably heating the two or more first heating chambers in a heating state. The state maintaining mechanism is maintained in a laminated arrangement; the first heating chamber includes a chamber side wall structure for clamping the solution heating container from opposite sides; two adjacently arranged chamber side wall structures are fixedly connected as an integral structure ; In all cavity side wall structures, relative to the main body of the equipment, at least two consecutively arranged cavity side wall structures can swing around the hinge axis to form a page turning structure, so that at least one side of each first heating cavity is on the side of the cavity. The wall structure can swing about the swing axis. Based on the improvement of the structure of the solution heating device, the compactness and applicability of the overall structure of the blood purification device can be effectively improved, and it can be widely used in medical technology fields such as blood purification.

Description

a blood purification device

technical field

The invention relates to the technical field of medical devices, in particular to a blood purification device constructed based on a page-turning multi-chamber heating device.

Background technique

In the process of blood purification, blood is usually purified by means of blood purification equipment, blood purification pipelines and blood purification consumables arranged thereon. Specifically, under the action of the pump power of the blood pump on the blood purification equipment, the blood The pipeline leads the blood out of the human body, and uses the plasma adsorption column, perfusion device, dialyzer and other blood purification modules to purify the blood, and then through the blood purification pipeline, the purified blood or plasma and an appropriate amount of supplementary fluid are sent back. In the human body, to achieve the purpose of purifying the blood. Due to the long circulation path of blood in the extracorporeal purification treatment, especially in cold winter, the temperature of the blood and the supplemental fluid is usually close to the indoor temperature, which is significantly lower than the normal temperature of the human body; especially, some supplemental fluids are transfused into the patient. For example, plasma usually needs to be refrigerated in a low temperature environment of 5 degrees Celsius; therefore, in the process of blood purification, in order to avoid the infusion of low-temperature blood and supplements from extracorporeal circulation into the patient's body, the In case of discomfort, the blood needs to be heated to approximately the normal temperature of the human body before being returned to the human body.

The above-mentioned supplemental fluid delivered back to the human body, such as a replacement fluid, is used to replenish the waste plasma and/or urine within 2 liters removed from the patient in an equivalent amount. Therefore, in the process of blood purification treatment, it is necessary to heat more than two different liquids. The main heating methods include bag heating and pipeline heating. Specifically, heating solutions such as heating bags or heating tubes used to heat different liquids are heated. The container is correspondingly placed in the heating chambers of different heating devices for heating. The structure of the heating device is heated as the heating device disclosed in the patent document with the publication number CN209645536U. The specific structure of the heating device includes a base, a top cover and an electric heating element arranged on at least one of them, a heating cavity for accommodating the aforementioned solution heating container is enclosed between the top cover and the base, that is, the top cover and the base respectively constitute the cavity side wall structure of the heating cavity, The heating chamber is used to heat the solution heating container contained in it; and during the heating process, the heating temperature is detected by the thermal sensor arranged on the top cover or the base, so as to better detect the heating target temperature. more precise control.

In the existing blood purification equipment, each solution heating container needs to be independently heated by separately arranged heating devices with a predetermined spacing, resulting in the overall occupied space of the device host by the heating devices.

In addition, in order to improve the efficiency of heat transfer, it is usually required that the side wall structure of the cavity where the heating element is arranged needs to be clamped outside the heating container during the heating process. , and during the heating process, the design of the sidewall structure of the clamp-type cavity will cause some heating containers to have the risk of bursting due to large temperature changes.

SUMMARY OF THE INVENTION

The main purpose of the present invention is to provide a blood purification device based on a page-turning multi-chamber heating device, which can not only improve the compactness of the overall structure of the device, but also facilitate the removal or placement of heating containers in multiple integrated heating chambers. enter;

The second object of the present invention is to provide a blood purification device based on a page-turning multi-chamber heating device, which can not only improve the compactness of the overall structure of the device, but also facilitate the removal or removal of heating containers in multiple integrated heating chambers. While being put in, the applicable scope of the heating container is improved, and the probability of bursting of the heating container during the heating process can be effectively reduced;

The third object of the present invention is to provide a blood purification apparatus that can independently heat the heating containers accommodated in different heating chambers.

In order to achieve the above-mentioned main purpose, the blood purification equipment provided by the present invention includes an equipment host, a blood pump and a solution heating device arranged on the equipment host, and the solution heating device includes a first heating chamber for accommodating and heating a solution heating container , the first heating chamber includes a cavity side wall structure for clamping the solution heating container from opposite sides; the solution heating device includes more than two first heating chambers, and is used for heating more than two The first heating chamber is releasably maintained as a state holding mechanism in a laminated arrangement; two adjacent chamber sidewall structures on two adjacently arranged first heating chambers are fixedly connected as an integral structure; when more than two Among all the cavity side wall structures of the first heating cavity, relative to the main body of the equipment, at least two continuously arranged cavity side wall structures can swing around the hinge axis to form a page turning structure, so that at least one of the first heating cavity The side wall structure of the cavity can swing about the swing axis.

In the above technical solution, the present invention is based on the page-turning structure constructed by the cavity side wall structure, and at least a part of the plurality of heating devices distributed independently on the existing blood purification equipment is integrated into the same heating device, which can effectively improve the overall The structure is compact, and based on the arrangement of the page-turning structure, during the operation, one heating device can be turned on to carry out the operation of putting in and taking out a plurality of heating containers, which improves the convenience of operation.

In order to achieve the above-mentioned other object, in the blood purification apparatus provided by the present invention, when the first heating chamber is in the heating state, the chamber sidewall structure which at least partially forms an integral structure can swing around the swing axis within a predetermined small angle. During the use of this technical solution, the cavity side wall structure can swing in a small range to adjust the distance between the two cavity side walls, so that when the distance between the two outermost cavity side wall structures remains unchanged, the The actual thickness of the heating chamber can be adjusted between different heating chambers in a small range according to the thickness of the contained heating container, so as to better adapt to the heating container of different structures; at the same time, the temperature can change greatly during the heating process. However, the heating container that causes the larger expansion can obtain part of the thickness change of the heating cavity from the heating container with the smaller temperature change, thereby effectively reducing the risk of bursting of the heating container.

The specific solution is that the first heating chamber and the chamber sidewall structures on both sides of the first heating chamber are both flat structures; an insulating layer structure is interlayered between the two chamber sidewall structures that are fixed into an integrated structure; the state maintaining mechanism includes: A cover plate and a mounting seat fixed on the main body of the equipment, the cover plate and the mounting seat enclose a mounting chamber for accommodating the first heating chamber; the lower edge of the cover plate can be opened and closed on the mounting seat through a door hinge On one side edge of the heating chamber; among all the cavity sidewall structures of the two or more first heating chambers, one outermost cavity sidewall structure is fixed on the inner plate surface of the cover plate, and the other outermost cavity sidewall structure is fixed on the inner surface of the cover plate. The lower ends of the wall structure and all the integrated structures are hinged on the hinge ears through the hinge shaft, and their hinge ends are hinged to the hinge ears at a predetermined distance according to the arrangement sequence; the arrangement sequence is the hinge ends. The arrangement sequence of the connected cavity side wall structures in the heating state; the hinged ear seat is convexly fixed on the inner plate surface of the cover plate; elastic is arranged between the two cavity side wall structures of the same first heating cavity The elastic restoring force of the pre-fixed structure is used to force the distance between the two cavity sidewall structures to shrink. The technical solution is based on the elastic pre-fixed connection structure between the two cavity side wall structures, so that the entire container heating system can be kept as an integrated structure when it is loaded into the installation cavity or taken out from the installation cavity, which is convenient for operation, and Based on the elastic pre-fixed structure, it will not have a great impact on the operation of taking out or putting in the heating container. And when the cover plate is opened, all the cavity side wall structures coupled to the cover plate can be taken out from the installation chamber together, which is convenient for operation.

The specific solution is that, in all the cavity sidewall structures of the two or more first heating chambers, relative to the main body of the equipment, at least one of the two outermost cavity sidewall structures and the ends of all the integrated structures can be wound around. The hinge shaft swings to form a page turning structure. The technical solution can further facilitate the taking out and putting in of the heating container.

A more specific solution is that in all the cavity sidewall structures of the two or more first heating chambers, relative to the main body of the equipment, the two outermost cavity sidewall structures and the ends of all integrated structures can swing around the hinge axis, And constitute a page-turning structure. The technical solution can facilitate the flexible arrangement of the cavity side wall structure on the connection structure.

A preferred solution is that on two or more first heating chambers, in all the side chamber wall structures constituting the page-turning structure, two or more consecutively arranged hinged ends are hinged to the hinged lugs at a predetermined distance in the arrangement sequence. ; The arrangement order is the arrangement order of the cavity side wall structures connected by the hinged ends in the heating state. The technical solution can effectively simplify the structure of the connection portion between the cavity side wall structure and the hinge ear seat.

A preferred solution is that the state maintaining mechanism includes a cover plate and a mounting seat fixed on the main body of the equipment, the cover plate and the mounting seat enclose a mounting chamber for accommodating the first heating chamber; the lower edge of the cover plate or a side The edge is openably and closably mounted on one side edge portion of the mount through a door hinge. Not only can the installation chamber be effectively used to improve the isolation structure between the first heating chamber and the external environment, but also the overall structure of the first heating chamber can be simplified, and the function of the state maintaining mechanism can be realized.

A further solution is to protrudely fix a hinge ear seat on the inner plate surface of the cover plate, which is used to hinge the hinge end of the cavity side wall structure constituting the page turning structure; on the two cavity side walls of the same first heating chamber A pre-fixed structure is arranged between the structures for releasably connecting the two-chamber sidewall structures or it has an elastic restoring force for forcing the space between the two-chamber sidewall structures to shrink. The technical solution is based on the pre-fixed connection structure between the two chamber side wall structures, so that the entire container heating system can be kept as an integrated structure when it is loaded into the installation chamber or taken out from the installation chamber, which is convenient for operation; in addition, For the pre-fixed structure with elastic restoring force, the distance between the two cavity wall structures can be properly opened and automatically reset after release, thereby effectively reducing the influence on the operation of taking out or putting in the heating container.

A further solution is that the elastic pre-fixed structure includes a magnetic suction structure, a vacuum suction cup structure or a spring structure; a plurality of clamping grooves are concavely arranged at the upper edge of the cover plate, and each clamping groove is used to clamp a single pipe. delivery pipe.

In order to achieve the above-mentioned other purpose, the preferred solution provided by the present invention is that a heat insulating layer structure is interlayered between two cavity side wall structures that are fixed into an integrated structure; Heating element; the cavity side wall structure on which the heating element is arranged includes a heat conduction plate whose inner plate surface forms the cavity wall surface of the first heating cavity, and a heating element which is closely arranged on the outer plate surface of the heat conduction plate and has a sheet-like structure.

Based on the above technical solution, by connecting the cavity sidewall structures of the two first heating cavities with a heat insulating layer structure, the two heating cavities can be kept independently heated with different heating powers.

A preferred solution is that the first heating chamber has a flat structure.

Description of drawings

Fig. 1 is the partial structure diagram of the embodiment 1 of the present invention at the solution heating device;

2 is a partial structural diagram of Embodiment 1 of the present invention when the cover plate is opened;

3 is a structural diagram of a solution heating device with two heating chambers and two solution heating containers in Embodiment 1 of the present invention;

4 is a structural exploded view of a cover plate and a cavity side wall structure fixed thereon in Embodiment 1 of the present invention;

Fig. 5 is a partial enlarged view of A in Fig. 4;

FIG. 6 is an exploded view of the structure shown in FIG. 4 from another viewing angle;

Fig. 7 is an enlarged view of part B in Fig. 6;

8 is an exploded view of the structure of the inner heating unit in Embodiment 1 of the present invention;

9 is a structural exploded view of an insulating layer structure and a cavity sidewall structure arranged on both sides of the insulating layer structure in Embodiment 1 of the present invention;

FIG. 10 is an enlarged view of some components of the structure shown in FIG. 9;

Fig. 11 is a partial enlarged view of the structure shown in Fig. 9;

Fig. 12 is a partial enlarged view of C in Fig. 3;

13 is a schematic structural diagram of a solution heating vessel used in Example 1 of the present invention;

14 is a schematic structural diagram of a solution heating device in Example 2 of the present invention;

15 is a schematic structural diagram of a solution heating device in Example 3 of the present invention;

16 is a schematic structural diagram of a solution heating device in Example 4 of the present invention;

17 is a partial structural diagram of the cover plate in Embodiment 5 of the present invention when the cover is opened;

18 is a structural diagram of a cover plate and a cavity side wall structure and a heat insulation layer structure installed on the cover plate in Embodiment 5 of the present invention.

Detailed ways

The present invention will be further described below with reference to the embodiments and the accompanying drawings.

The main idea of the present invention is to improve the structure of the solution heating device on the blood purification equipment, mainly to replace at least some independently distributed solution heating devices on the existing blood purification equipment with a page-turning multi-chamber heating device, so as to improve the The overall structure of the equipment is compact, and the loading and unloading operations of the heating container are convenient. According to the present concept, other parts of the structure of the blood purification equipment are designed with reference to existing products.

Example 1

Referring to FIGS. 1 and 2 , the main body 10 of the blood purification equipment 1 of the present invention and the blood pump and the solution heating device 2 arranged on the main body 10 of the equipment. The solution heating device 2 is a page-turning multi-chamber heating device. In this example, it is specifically a multi-chamber independent heating solution heating device; wherein, "independent heating" is configured. The solution in the heating chamber 20 is synchronously heated from different initial temperatures to the target temperature; in this embodiment, the solution heating device 2 is arranged on the side wall of the equipment main body 10, and is installed using a flip-type door structure. Side-opening door structure for installation.

1 to 12 , the solution heating device 2 includes a plurality of first heating chambers 20 for accommodating the solution heating container 01 and heating the solution heating container 01 , and can The solution heating container 01 inside is a heating unit for independent power heating; wherein, the plurality of first heating chambers 20 are arranged on the same side of the equipment main body 10, and a device for accommodating the solution heating device is concavely formed on the side. Chamber 100. In the present embodiment, each first heating chamber 20 is constituted by at least two chamber sidewall structures 3 arranged at a predetermined distance to form a first heating chamber 20 having a flat structure. During the heating process, the The two cavity side wall structures 3 are arranged oppositely and sandwiched outside the solution heating container 01, so that the heat generated by the heating elements arranged on the cavity side wall structures 3 can be better transferred to the solution heating container 01; wherein, the cavity side The wall structures 3 are all plate structures, preferably flat plate structures, and two chamber side wall structures 3 are arranged in parallel to construct a first heating chamber 20 .

Two or more first heating chambers 20 are arranged in layers in the thickness direction, that is, in the thickness direction of the chamber sidewall structure 3 , and in the thickness direction, the adjacently arranged two first heating chambers 20 are arranged in layers. A flat thermal insulation layer structure 4 is sandwiched between the cavity sidewall structures 3 . The heat insulating layer structure 4 can be constructed by a heat insulating plate and/or an air heat insulating layer. In this embodiment, it specifically includes a support frame 5 and heat insulating plates 40 arranged on both sides of the support frame 5. The support frame 5 is used to store the air heat insulating layer 41 between the heat insulating boards 40 fixed on the both sides of the heat insulating layer structure 4 in the thickness direction thereof, so that the heat insulating layer 41 can be formed based on multiple layers of heat insulating layers with different properties. A structure of thermal insulation layer with better thermal insulation effect is formed. In the following structure description of the present embodiment, the specific structure of the present invention is exemplified by taking the solution heating device 2 having two first heating chambers 20 as an example.

In this embodiment, each cavity side wall structure 3 includes a heat conduction plate 30 whose inner plate surface constitutes the cavity side wall surface of the first heating cavity 20 , and a sheet-shaped heat conduction plate 30 fixed on the outer plate surface of the heat conduction plate 30 . Electric heating element 31; thus, both sides of the cavity walls of the first heating cavity 20 are formed by the inner plate surface of the heat-conducting plate 30, wherein the cavity side wall structure 3 constitutes the heating unit in this embodiment, and is connected with the heat insulation layer. The heat conduction plate 30 on the adjacent heating unit of the structure 4 is fixedly connected with the support frame 5, that is, except for the two outermost cavity side wall structures 3, the other cavity side wall structures are fixedly connected with the adjacent support frame 5. One-piece structure, so that the heat insulation layer structure 4 and the cavity side wall structure adjacently arranged on both sides thereof are fixedly connected into an integrated structure. In this embodiment, the sheet-shaped electric heating element 31 is a heating film.

As shown in FIG. 9 to FIG. 11 , the support frame 5 is a rectangular ring structure, and an inner step surface 50 is protrudingly arranged on the inner ring surface of the rectangular ring structure; during the assembly process of the solution heating device 2, Part of the structure on the cavity side wall structure 3 is sheathed in the rectangular ring body, and a plate surface of the cavity side wall structure 3 is supported against the inner step surface 50, and is fixed on the inner step surface 50 by fixing screws 51. on a rectangular ring structure. In this embodiment, the entire cavity side wall structure 3 is sheathed in the rectangular ring structure. In this embodiment, the heat insulating plate 40 and the adjacent sheet-like electric heating element 31 are both sheathed in the rectangular ring structure, and then the heat conducting plate 30 is used to press the two on the inner step surface 50, so as to effectively Reduce the amount of hole machining and avoid the damage caused by machining holes to the above two.

An installation chamber 100 for accommodating the solution heating device 2 and a cover plate 6 for opening and closing the opening of the installation chamber 100 are arranged on the equipment main body 10; in this embodiment, the lower edge of the cover plate 6 The door hinge 11 is openably and closably installed on one side edge of the installation chamber 100 . The door hinge 11 includes a hinge shaft 110 and a hinge shaft hole 66 arranged on the cover plate 6 and adapted to the hinge shaft 110 . , and the hinge shaft hole arranged on the main body 10 of the equipment and adapted to the hinge shaft 110; in addition, one of the two side edges of the cover plate 6 can be opened and closed in the installation cavity through the door hinge on one side edge of the chamber 100 . A door handle 70 is arranged on the upper edge of the cover plate 6 , and a holding mechanism 71 controlled by the door handle 70 and used to keep the cover plate 6 in the closed position is arranged. As shown in FIG. 5 , the holding mechanism 71 includes a door buckle 714, a door buckle return spring 718, a door buckle moving guide rod 715, a door handle return torsion spring 711, a rotation transmission ring 710, a damping ring 712 and an installation circlip 713; The buckle 714 is movably installed on the edge of the cover plate 6 through two door buckle moving guide rods 715, and is driven by the elastic restoring force of the door buckle return spring 718 sleeved outside the door buckle moving guide rod 715, and Able to reciprocate between the locked position and the unlocked position, the elastic restoring force of the latch return spring 718 forces the latch 714 to move toward the edge of the mounting chamber 100 to be engaged at the edge, so that the latch 714 is locked position; when the door handle 70 drives the rotation transmission ring 710 to rotate, and uses the protrusion on it to drive the door catch 714 to overcome the elastic restoring force of the door catch return spring 718, and move to the unlocked position, which is separated from the edge of the installation chamber 100 When the door handle 70 is released, the rotation transmission ring 710 is reset to contact the push-pull force of the door buckle 714 under the action of the restoring force of the door handle return torsion spring 711, so that the door buckle return spring 718 Under the action of the elastic restoring force, the door catch 714 is reset to the locked position.

Two hinge lugs 60 are protrudingly arranged on the edge of the inner plate of the cover plate 6 facing the near-door hinge 11 , and a plurality of hinge holes 601 arranged at intervals are provided on the hinge lugs 60 ; The end of the door hinge 11 is pivotably hinged with the hinge ear seat 60 through the cooperation of the hinge screw 602 with the hinge hole 601 ; It is arranged on the inner surface of the cover plate 6, specifically, a groove for nesting the heating element is concavely formed on the inner surface of the cover plate 6, and a fixed connection is realized based on the pressing action of the heat conducting plate 30; The end of the inner cavity wall structure 3 adjacent to the door hinge 11 is also hinged to the hinge ear seat 6 through the hinge structure, and is pivotably hinged with the hinge ear seat 6 .

In this embodiment, in order to improve the structural strength of the innermost cavity sidewall structure 3, it can be directly fixed and connected to the cavity bottom surface of the installation cavity 100, or a support plate can be added for structural reinforcement. The structure is reinforced by adding a supporting plate. The specific structure is shown in FIG. 8 . The supporting plate 38 with a plate-like structure is used for structural reinforcement, and the lower end of the supporting plate 38 is provided with a hinge hole for hinged connection with the hinge ear seat 60 3806, and a permanent magnet block 92 and a raised column 99 are arranged thereon; thus through the cooperation of the hinge screw 603 with the hinge hole 3806 and the hinge hole 601, the innermost cavity side wall structure 3 and the hinge ear seat 6 can be connected. Oscillatingly hinged. That is, in this embodiment, based on the innermost grab side wall structure 3 and the cavity side wall structure that is fixedly connected with the heat insulating layer structure 4 to the same hinge ear seat, they form a page turning structure; And in the process of forming the page turning structure, according to the arrangement sequence of the different cavity side wall structures, their lower ends are also hinged with the hinge holes 601 arranged on the hinge ear seat 6 according to this sequence, so that they can be separated by a preset amount. The hinged hinges at different positions on the hinged ears 6 can effectively ensure that the cavity sidewall structures are generally kept in a state of being arranged in parallel during the heating and use process.

In addition, in order to facilitate the operation of the heating process, a pre-fixed structure for releasably fixing them to the cover plate 6 is arranged between the support frame 5 and the heat-conducting plate 30 of the innermost heating unit, the pre-fixed structure The elastic restoring force is used to force the plate spacing between the two heat-conducting plates 30 that form the sidewall of the same first heating chamber The spacing can be reduced releasably. For the pre-fixed structure, a magnetic attraction structure can be selected to construct, specifically, a pair of permanent magnet blocks 92 with opposite poles arranged on the inner surface of the cavity side wall structure 3, or a magnet block 92 and a pair of oppositely arranged permanent magnet blocks 92. An iron-supported support frame 5 or a heat-conducting plate can be used to construct the pre-fixed structure. In addition, the pre-fixed structure can be constructed by using a vacuum suction cup structure or a structure that can output elastic restoring force, such as a spring, for example, in two cavities of the same first heating cavity 20 An extension spring is arranged on the side wall, that is, one end of the extension spring is correspondingly fixed with a cavity side wall structure; There is no need for medium transport, reducing interference with the process of putting in and out of the heating vessel 01 . Therefore, during the use process, the pre-positioning of the solution heating container can be realized and the heating position can be prevented from being shifted. During use, with the opening and closing of the cover plate 6 , the two first heating chambers 20 are encased into the installation chamber 100 or taken out from the installation chamber 100 . The solution heating container 01 is then loaded into the installation chamber 100 or taken out from the installation chamber 100, so that during the heating process, the airtight structure of the installation chamber 100 can be used to reduce the exposure of the first heating chamber 20 to the external environment. Heat output. That is, in this embodiment, the installation chamber 100 is used to accommodate the first heating chamber 20 of the solution heating device 2 , the heating unit and the heat insulating layer structure 4 .

As shown in FIG. 13 , the solution heating container 01 includes a heating coil 011 and a pick-and-place bag 012 that is sheathed outside the heating coil 011. In this embodiment, the pick-and-place bag 012 is a vacuum packaging bag structure; In order to facilitate the pre-installation of the solution heating container 01 in the first heating chamber 20, at least one side wall of the first heating chamber 20 is protrudingly arranged with two or more sets of columns, and the set bag 012 for picking and placing A set hole 013 is arranged on the top which is suitable for the set column; in this embodiment, some set columns are constructed with permanent magnet blocks 92 , and some are constructed with raised columns 99 . Therefore, during the use process, the pre-positioning of the solution heating container can be realized and the heating position can be prevented from being shifted.

In this embodiment, for temperature monitoring, dual temperature sensors 96 can be used for redundant settings, and the upper limit of detection temperature of one of them is higher than the upper limit of detection temperature of the other, which effectively improves the accuracy of detection and avoids excessive temperature The detection temperature sensor 96 is disabled, and a receiving groove 400 for installing the temperature sensor 96 is arranged on the heat insulation plate 40, so that the temperature sensor 96 can be closely attached to the heating element for temperature monitoring; that is, the temperature sensor 96 is arranged in the heat conduction. The side of the plate 30 facing away from the first heating chamber 20 , and the detection end contacts the surface of the heating element 31 .

In addition, the cover plate 6 and the equipment main body 10 are provided with a pipeline anti-folding structure, which can effectively reduce the problem of pipeline bending due to improper operation. The pinch groove 68 for fixing the heating line is constructed.

During use, the above-mentioned blood purification equipment can not only make the overall structure more compact based on the stacked arrangement of the two first heating chambers in the thickness direction, but also can make the overall structure more compact based on the arrangement of the two chamber side wall structures for fixing and thermal insulation. The layer structure can effectively ensure that each heating chamber can independently heat the container accommodated therein, so as to meet the heating requirements of solutions with different initial temperatures during the blood purification process, so as to effectively ensure that the first heating chamber 20 The heating temperature is based on the requirements of the heating element temperature monitoring and fitting; for example, when the patient is supplemented with plasma, replacement fluid in plasma exchange or plasma adsorption therapy mode, the plasma and replacement fluid must be heated; It is kept in the refrigerator. The plasma temperature just taken out of the refrigerator is 5°C, but the replacement fluid is kept at room temperature, and the temperature is 25°C. At this time, the heating units of the two first heating chambers 20 can be used. Different heating powers heat the plasma and the replacement fluid synchronously to the human body temperature of 37°C, which effectively reduces the patient's body temperature loss during the treatment process and effectively ensures the safety of blood purification treatment.

Example 2

As a description of Embodiment 2 of the present invention, only the differences from Embodiment 1 described above will be described below.

In the structure shown in FIG. 14 , the arrangement position of the hinge ear seat 6 is modified from being fixed on the cover plate in the above-mentioned Embodiment 1 to being fixed on the bottom surface of the cavity of the installation chamber 100 ; at this time, a pair of The pre-fixing structure 81 composed of two permanent magnet blocks with oppositely arranged magnetic poles is used for releasably pre-fixing two adjacent cavity side wall structures into the installation cavity 100, that is, in this embodiment, The pre-fixed structure is used for fixing all the cavity side wall structures 3 into a releasable integral structure, and for releasably fixing the integral structure to the base body fixed with the aforementioned hinge ear seat 6 . In this embodiment, there is a two-layer thermal insulation layer structure, thereby constructing three first heating chambers 20 arranged in a stacked layer.

In this embodiment, all the cavity side wall structures are hinged to the hinge ear seat 6 to form a page turning structure.

At this time, a pull rod 82 for pulling all the cavity side wall structures away from the installation chamber 100 needs to be fixed on the innermost cavity side wall structure.

Example 3

As a description of Embodiment 3 of the present invention, only the differences from Embodiment 2 above will be described below.

As shown in FIG. 15, the innermost cavity side wall structure is fixed on the cavity bottom surface of the installation chamber 100, and the lower ends of the remaining cavity side wall structures are hinged to the hinge ear seat 6, so that the remaining cavity side wall structures are hinged The cavity sidewall structure constitutes a page-turning structure.

At this time, the pull rod 82 is firmly connected to the penultimate cavity side wall structure 3 .

Example 4

As a description of Embodiment 3 of the present invention, only the differences from Embodiment 2 above will be described below.

In the above-mentioned Embodiments 1 to 2, the lower end of the cavity side wall structure 3 constituting the page-turning structure is hinged through hinged positions at predetermined intervals, as shown in FIG. 16 , in this embodiment, based on the bending arrangement The connection relationship of the connecting plate 83 is established, and all the swingable cavity side wall structures 3 can be hinged to the same hinge shaft 84 to form a page turning structure.

In the above-mentioned embodiment, the solution heating device 2 is fixed on the equipment main body 10; the solution heating device 2 can also be installed on the equipment main body 10 as a detachable part. At this time, the solution heating device 2 will include a The mounting seat and the cover plate 6 of the mounting chamber 100 are formed.

Example 5

As a description of Embodiment 5 of the present invention, only the differences from Embodiment 1 described above will be described below.

Referring to FIG. 17 and FIG. 18 , in this embodiment, two first heating chambers are included, and among the four chamber sidewall structures, the middle two chamber sidewall structures 301 are fixedly connected with the heat insulating layer structure 4 to form an integral structure, For the two outermost cavity sidewall structures, the fixing method is as follows: one outermost cavity sidewall structure 302 is fixed on the inner surface of the cover plate 6 , and the other outermost cavity sidewall structure 303 is fixedly fixed On the cavity bottom surface of the installation cavity 100 .

A hinge ear seat 60 is protrudingly fixed on the inner plate surface of the cover plate 6, and a hinge ear hole is provided on the hinge ear seat 60. The aforementioned integrated structure is hinged to the hinge ear seat 60, and the lower end of the cover plate 6 is hinged to the main body of the device through the hinge shaft, so that the cavity side wall structure 302 and the aforementioned integrated structure form a page-turning structure.

A clamping groove 400 for clamping the pipeline is fixed on the top surface of the heat insulation layer structure 4 .

During use, the first heating container is placed in the outermost first heating cavity, and the magnet block fixed on the upper end of the cavity side wall structure is used to pre-fix the outer first heating cavity, and Keep the heating container accommodated in it; then, another heating container is fixed on the inner panel surface of the above-mentioned integrated structure by using the column hole matching structure or by using the magnet adsorption to pre-fix, and then the cover plate 6 is closed to make the above-mentioned first The inner surfaces of the two heating containers are in close contact with the cavity side wall structure 303 to better transfer heating heat.

In the above embodiment, after the cover plate and the mounting seat constituting the state maintaining mechanism are closed, the side wall structures of the two sides of the same first heating chamber abut against each other, so that the page turning structure does not swing, that is, the At this time, the inner cavity of each first heating cavity is fixed. In order to effectively improve the adaptability of each heating chamber to the heating container, and in the process of loading the heating container, the first heating can be adjusted in a small range between different first heating chambers based on the difference in thickness of multiple heating containers The thickness of the cavity can be adjusted between adjacent first heating cavities according to the thickness of the heating container during the heating process, thereby effectively reducing the burst probability of the heating container during the heating process. That is, the aforementioned page-turning structure can be set so that in the heating state, at least part of the integrated structure can swing around the swinging axis within a predetermined small angle, and the "predetermined small angle" is set according to the actual design, usually less than 5 degrees. , so that the sidewall structures of the two chambers of the first heating chamber can be kept in a substantially parallel state. That is to say, in the solution heating container, most of the cavity sidewall structures on the first heating cavity 20 arranged in multiple layers are set to a page turning structure, and have a certain turning angle, so that the The cavity side wall structure can swing within a predetermined range, and the distance between the two cavity side walls can be adjusted in a small range, so that the distance between the two cavity side wall structures at the outermost side can be determined by the cover plate 6 and the installation cavity 100. When the bottom surface of the cavity is limited and remains unchanged, the actual thickness of the heating cavity can be adjusted between different heating cavities according to the thickness of the accommodated heating container within a certain range, so as to better adapt to heating containers of different structures. At the same time, during the heating process, the heating vessel with a larger temperature change and a larger expansion can obtain part of the thickness change of the heating cavity from the heating vessel with a smaller temperature change, thereby effectively reducing the risk of bursting of the heating vessel.

In the above embodiment, referring to the structure shown in FIG. 7 , the diameter of the hinge hole 601 can be set to be slightly larger than the diameter of the handover screw, so that the side wall of the heating chamber can be moved within a certain range, so as to prevent the heating vessel 01 from being affected by Squeeze rupture due to thermal expansion.

In the above-mentioned embodiment, referring to the structure shown in FIG. 2 , the binding force of the pre-fixed structure is smaller than the rupture pressure of the solution heating container 01 , that is, the adsorption force between the magnet blocks 92 is smaller than the rupture pressure of the heating container 01 , thereby ensuring the heating process. When the middle heating container 01 is heated and expands to a certain volume, it overcomes the adsorption force between the magnet blocks 92, thereby increasing the space of the first heating chamber, preventing the heating container 01 from being squeezed, and ensuring the safety of the treatment process.

Claims (11)

1. a blood purification device, comprising a device host and a blood pump and a solution heating device arranged on the device host, the solution heating device comprising a first heating chamber for accommodating a solution heating container and heating it, The first heating chamber includes a chamber side wall structure for holding the solution heating container from opposite sides, and is characterized in that: The solution heating device includes two or more of the first heating chambers, and is used to releasably maintain the two or more of the first heating chambers in a stacked state when in a heating state Mechanism; two adjacent side wall structures of two adjacent first heating cavities are fixedly connected as an integral structure; Among all the cavity sidewall structures of the two or more first heating chambers, relative to the device main body, at least two consecutively arranged cavity sidewall structures can swing around the hinge axis to form a page-turning structure , so that the cavity sidewall structure on at least one side of each first heating cavity can swing around the swing axis. 2. blood purification equipment according to claim 1, is characterized in that: In the heating state, at least part of the one-piece structure can swing about the swing axis within a predetermined small angle. 3. blood purification equipment according to claim 1 or 2 is characterized in that: The first heating cavity and the cavity sidewall structures on both sides thereof are both flat structures; an insulating layer structure is interlayered between the two cavity sidewall structures that are fixedly connected to form the integrated structure; The state maintaining mechanism includes a cover plate and a mounting seat fixed on the main body of the equipment, the cover plate and the mounting seat enclose a mounting chamber for accommodating the first heating chamber; the cover plate The lower side edge of the mounting seat is openably and closably mounted on one side edge of the mounting seat through a door hinge; A hinged ear seat is protruded and fixed on the inner plate surface of the cover plate; Among all the cavity sidewall structures of the two or more first heating chambers, one outermost cavity sidewall structure is fixed on the inner surface of the cover plate, and the other outermost cavity sidewall structure is fixed on the inner surface of the cover plate. The lower ends of the structure and all the integrated structures are hinged on the hinge ear seat through a hinge shaft, and their hinge ends are hinged to the hinge ear seat at a predetermined distance according to the arrangement sequence, and the row The arrangement order is the arrangement order of the cavity side wall structures connected by the hinged ends in the heating state; or among all the cavity side wall structures of the two or more first heating cavities, the outermost cavity side The wall structure is fixed on the inner plate surface of the cover plate, the other outermost cavity side wall structure is fixed on the cavity bottom surface of the installation cavity, and the lower ends of all the integrated structures are connected by hinge shafts. are hinged on the hinge ears, and their hinge ends are hinged to the hinge ears at a predetermined distance according to the arrangement sequence, and the arrangement sequence is that the cavity side wall structure connected to the hinge ends is heated The order in which the state is arranged; A pre-fixed structure is arranged between the two chamber sidewall structures of the same first heating chamber for releasably connecting the two chamber sidewall structures or a pre-fixed structure for forcing between the two chamber sidewall structures The elastic restoring force of the spacing reduction. 4. blood purification equipment according to claim 1 or 2, is characterized in that: In all the chamber sidewall structures of the two or more first heating chambers, with respect to the device main body, at least one of the two outermost chamber sidewall structures and all of the integrated structures The ends can swing around the hinge shaft to form a page turning structure. 5. blood purification equipment according to claim 4 is characterized in that: In all the cavity sidewall structures of the two or more first heating chambers, relative to the main body of the device, the two outermost cavity sidewall structures and the ends of all the integrated structures can be hinged around a hinge. The shaft swings to form a page-turning structure. 6. The blood purification equipment according to claim 1, 2, 4 or 5, characterized in that: On the two or more first heating chambers, in all the side chamber wall structures constituting the page-turning structure, two or more consecutively arranged hinged ends are hinged to the hinged ears at a predetermined distance according to the arrangement sequence ; The arrangement sequence is the arrangement sequence of the cavity side wall structures connected by the hinged ends in the heating state. 7. The blood purification equipment according to claim 1, 2, 4, 5 or 6, characterized in that: The state maintaining mechanism includes a cover plate and a mounting seat fixed on the main body of the equipment, the cover plate and the mounting seat enclose a mounting chamber for accommodating the first heating chamber; The lower side edge or one side edge of the cover plate is openably and closably mounted on one side edge portion of the mounting seat through a door hinge. 8. blood purification equipment according to claim 7, is characterized in that: A hinged ear seat is convexly fixed on the inner panel surface of the cover plate for hingedly connecting the hinged end of the cavity side wall structure constituting the page-turning structure; A pre-fixed structure is arranged between the two chamber sidewall structures of the same first heating chamber for releasably connecting the two chamber sidewall structures or a pre-fixed structure for forcing between the two chamber sidewall structures The elastic restoring force of the spacing reduction. 9. blood purification equipment according to claim 3 or 8, is characterized in that: The pre-fixed structure includes a magnetic suction structure, a vacuum suction cup structure or a spring structure; A plurality of pipe clamping grooves are concavely provided at the upper edge of the cover plate, and each of the pipe clamping grooves is used for clamping a single conveying pipe. 10. The blood purification apparatus according to any one of claims 1, 2 and 4 to 9, characterized in that: An insulating layer structure is interlayered between the two cavity sidewall structures that are fixed to form the integrated structure; A heating element is arranged at least on the cavity sidewall structure constituting the integrated structure; The cavity side wall structure on which the heating element is arranged includes a heat conduction plate whose inner plate surface constitutes the cavity wall surface of the first heating cavity, and a sheet-shaped heat-conducting plate closely arranged on the outer plate surface of the heat-conducting plate. structure of the heating element. 11. The blood purification apparatus according to any one of claims 1, 2 and 4 to 9, characterized in that: The first heating chamber is a flat structure.

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