CN111701101B - A blood purification device - Google Patents

Abstract

The invention relates to a blood purification device, which belongs to the technical field of medical instruments. 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 to releasably connect the two or more first heating chambers in the heating state. The state maintaining mechanism is kept in a stacked arrangement; the first heating chamber includes a chamber sidewall structure for clamping the solution heating container from opposite sides; two chamber sidewall structures arranged adjacently are fixedly connected as an integral structure ; In all cavity side wall structures, relative to the equipment main body, at least two continuously arranged cavity side wall structures can swing around the hinge axis to form a page-turning structure, so that the cavity side on at least one side of each first heating 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 equipment 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 based on a page-turning multi-chamber heating device.

Background technique

In the process of blood purification, the blood is usually purified by using blood purification equipment, blood purification pipelines and blood purification consumables arranged on it, specifically, under the action of the pump power of the blood pump on the blood purification equipment, through the aforementioned blood purification The pipeline leads the blood out of the human body, and uses blood purification modules such as plasma adsorption columns, perfusers, and dialyzers to purify the blood, and then transports the purified blood or plasma and an appropriate amount of supplementary fluid back to In the human body, to achieve the purpose of purifying the blood. Due to the long circulation path of blood purification outside the body, especially in the cold winter, the temperature of blood and replenishment fluid is usually close to the room temperature, which is significantly lower than the normal temperature of the human body; especially when part of the supplement fluid is infused into the patient Before, it needs to be placed in the refrigerator for refrigeration. For example, plasma usually needs to be stored in a low-temperature environment of 5 degrees Celsius for low-temperature refrigeration; To cause discomfort, the blood needs to be heated to about the same temperature as the normal body temperature before it can be returned to the human body.

The above-mentioned supplementary fluid delivered back to the human body is, for example, a replacement fluid, which is used to supplement the same amount of waste plasma and/or urine within 2 liters removed from the patient's body. Therefore, in the process of blood purification treatment, it is necessary to heat two or more 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 The containers are correspondingly placed in the heating chambers of different heating devices for heating. The structure of the heating device is as disclosed in the patent document CN209645536U for heating. For the specific structure of the heating device, it includes a base, a top cover And the electric heating element arranged on at least one of them, a heating chamber 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 chamber side wall structure of the heating chamber, The heating chamber is used to heat the solution heating container contained therein; 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 control the heating target temperature. more precise control.

In the existing blood purification equipment, each solution heating container needs to be independently heated by a heating device arranged separately and at a predetermined distance, which results in a relatively large space occupied by the heating device on the main body of the device as a whole.

In addition, in order to improve the efficiency of heat transfer, it is usually required that the cavity side wall structure with heating elements be clamped outside the heating vessel during the heating process. This mechanism will not only lead to a narrow range of adaptation of the heating cavity to the thickness of different heating vessels , and during the heating process, the design of the side wall structure of the clamping cavity will lead to the risk of bursting of some heating containers due to large temperature changes.

Contents 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 putting it in, it can improve the scope of application of the heating container, and can effectively reduce the probability of bursting of the heating container during the heating process;

The third object of the present invention is to provide a blood purification device capable of independently heating heating containers accommodated in different heating chambers.

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

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

In order to achieve the above another objective, in the blood purification device provided by the present invention, when the first heating chamber is in the heating state, at least part of the cavity side wall structure that constitutes 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 within a small range to adjust the distance between the two cavity side walls, so that when the distance between the outermost two cavity side wall structures is constant, the In a small range, the actual thickness of the heating chamber can be adjusted between different heating chambers according to the thickness of the heating container accommodated, so as to better adapt to heating containers of different structures; at the same time, the temperature can change greatly during the heating process And the heating container with larger expansion can obtain part of the thickness change of the heating cavity from the heating container with smaller temperature change, thereby effectively reducing the risk of the heating container bursting.

The specific solution is that the first heating chamber and the chamber sidewall structures on both sides are flat structures; the two chamber sidewall structures that are fixedly connected into one structure are interlayered with a heat insulating layer structure; the state maintaining mechanism includes: The cover plate and the mounting seat fixed on the main unit of the equipment, the cover plate and the mounting seat enclose an installation chamber for accommodating the first heating chamber; the lower edge of the cover plate is mounted on the mounting seat in an openable and closable manner through a door hinge On one edge of one side of the heating chamber; among all the chamber side wall structures of the two or more first heating chambers, one outermost chamber side wall structure is fixed on the inner plate surface of the cover plate, and the other outermost chamber side wall structure The lower ends of the wall structure and all the integrated structures are hinged on the hinged lugs through hinge shafts, and their hinged ends are hinged to the hinged lugs at a predetermined distance according to the arrangement sequence; the arrangement sequence is determined by the hinged ends. The arrangement sequence of the connected chamber sidewall structures in the heating state; the hinged lugs are protrudingly fixed on the inner plate surface of the cover plate; elastic springs are arranged between the two chamber sidewall structures of the same first heating chamber The elastic restoring force of the pre-fixed structure is used to force the distance between the two-chamber sidewall structures to shrink. The technical solution is based on the arrangement of an elastic pre-fixed structure between the side wall structures of the two chambers, so that when the entire container heating system is loaded into or taken out of the installation chamber, it can maintain an integrated structure and be easy to operate, 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 is opened, all the chamber side wall structures coupled to the cover can be taken out of the installation chamber together, which is convenient for operation.

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

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

The preferred solution is that in all the side chamber wall structures forming the page-turning structure on two or more first heating chambers, two or more continuously arranged hinged ends are hinged to the hinged lugs at predetermined intervals according to the order of arrangement ; The arrangement sequence is the arrangement sequence of the cavity side wall structures connected by the hinged ends in the heating state. This technical solution can effectively simplify the structure of the connection part between the cavity side wall structure and the hinged lug seat.

The 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 an installation chamber for accommodating the first heating chamber; the lower edge or a side of the cover plate The edge is mounted openably and closably on one side edge of the mounting seat 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, 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 protrude and fix hinge lugs on the inner surface of the cover plate for hinged hinge ends of the cavity side wall structures that form the page-turning structure; on the two cavity side walls of the same first heating cavity A pre-fixed connection structure is arranged between the structures for releasably connecting the two-chamber sidewall structures or having an elastic restoring force for forcing the distance between the two-chamber sidewall structures to shrink. This technical solution is based on the pre-fixed connection structure between the two cavity side wall structures, so that the entire container heating system can maintain an integrated structure and be easy to operate when it is loaded into or taken out of the installation chamber; in addition, For the pre-fixed structure with elastic recovery force, the distance between the two cavity wall structures can be properly opened and automatically reset after release, thereby effectively reducing the impact 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 chuck structure or a spring structure; a plurality of clamping grooves are concavely provided on the upper edge of the cover plate, and each clamping groove is used to clamp a single delivery tube.

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

Based on the above technical solution, by connecting the cavity side wall 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 is a flat structure.

Description of drawings

Fig. 1 is the partial structural diagram at the solution heating device of Embodiment 1 of the present invention;

Fig. 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 Example 1 of the present invention;

4 is an exploded view of the cover plate and the 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 under another viewing angle;

Fig. 7 is a partial enlarged view of B in Fig. 6;

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

Fig. 9 is an exploded view of a heat insulation layer structure and cavity sidewall structures arranged on both sides of the heat insulation 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;

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

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

Fig. 13 is a schematic structural view of the solution heating container used in Example 1 of the present invention;

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

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

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

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

Fig. 18 is a structural diagram of the cover plate and the cavity side wall structure and 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 in conjunction with embodiment and accompanying drawing.

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 part of the independently distributed solution heating devices on the existing blood purification equipment with a page-turning multi-chamber heating device, so as to improve The overall structure of the equipment is compact, and it is convenient to load and take out the heating container. According to this idea, other parts of the structure of the blood purification equipment are designed with reference to existing products.

Example 1

Referring to Fig. 1 and Fig. 2, the blood purification device 1 of the present invention has a main body 10 and a blood pump and a solution heating device 2 arranged on the main body 10 of the device. 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. Each first heating chamber 20 is equipped with a heating element that can independently adjust its heating power, so as to accommodate different first heating chambers. The solution in the heating chamber 20 is heated synchronously from different initial temperatures to the target temperature; Side opening door structure for installation.

Referring to Fig. 1 to Fig. 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 be accommodated in each first heating chamber 20 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 the installation for accommodating the solution heating device is formed concavely on the side. chamber 100 . In this embodiment, each first heating chamber 20 is composed of at least two chamber sidewall structures 3 arranged at a predetermined distance to form a first heating chamber 20 in a flat structure. During the heating process, the first heating chamber 20 The two cavity side wall structures 3 are arranged oppositely and sandwiched outside the solution heating container 01, so as to better transfer the calorific value of the heating element arranged on the cavity side wall structure 3 to the solution heating container 01; wherein, the cavity side The wall structure 3 is a plate structure, preferably a flat plate structure, and two cavity side wall structures 3 are arranged in parallel to form the first heating cavity 20 .

More than two first heating chambers 20 are arranged in layers in the thickness direction, that is, in the thickness direction of the chamber side wall structure 3, and in this thickness direction, the two first heating chambers 20 arranged adjacently A flat heat insulating layer structure 4 is interposed between the cavity side wall structures 3 . The heat insulation layer structure 4 can be constructed by a heat insulation board and/or an air heat insulation layer. In this embodiment, it specifically includes a support frame 5 and heat insulation plates 40 arranged on both sides of the support frame 5, The support frame 5 is used to make the air insulation layer 41 exist between the heat insulation boards 40 fixed on the two sides of the heat insulation layer structure 4 in the thickness direction, so that it can be based on multiple layers of heat insulation layers with different properties. A heat insulation layer structure with better heat insulation effect is formed. In the following structural description of this embodiment, the specific structure of the present invention is illustrated by taking the solution heating device 2 with 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 plate fixed on the outer plate surface of the heat conduction plate 30. Electric heating element 31; so that both sides of the first heating chamber 20 are formed by the inner plate surface of the heat conducting plate 30, wherein the chamber side wall structure 3 constitutes the heating unit in this embodiment, and is connected with the heat insulating layer The heat conduction plate 30 on the heating unit adjacent to the structure 4 is fixedly connected to the support frame 5, that is, except for the two cavity side wall structures 3 located on the outermost side, other cavity side wall structures are fixedly connected to the adjacent support frame 5 to form a Integral structure, so that the heat insulation layer structure 4 is fixedly connected with the cavity side wall structures arranged adjacently on both sides thereof to form an integral structure. In this embodiment, the sheet-shaped electric heating element 31 is a heating film.

As shown in Figures 9 to 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 set in the rectangular ring, and a plate surface of the cavity side wall structure 3 is supported against the inner step surface 50, and is fixed on the cavity side wall structure 3 by fixing screws 51. On the rectangular ring structure. In this embodiment, the entire cavity side wall structure 3 is set in the rectangular ring structure. In this embodiment, the heat insulating plate 40 and the sheet-shaped electric heating element 31 adjacent to it are all set in the rectangular ring structure, and then the heat conducting plate 30 is used to press the two tightly on the inner step surface 50, thereby effectively Reduce the amount of hole processing and avoid the damage caused by the hole processing to the above two.

An installation chamber 100 for accommodating the solution heating device 2 is arranged on the equipment host 10, and an open cover plate 6 for opening and closing the installation chamber 100; in this embodiment, the lower side edge of the cover plate 6 Openably and closably installed on one side edge of the installation chamber 100 through a door hinge 11, the door hinge 11 includes a hinge shaft 110, a hinge hole 66 arranged on the cover plate 6 and adapted to the hinge shaft 110 , and a hinge hole arranged on the main unit 10 of the device and adapted to the hinge shaft 110; in addition, one of the two side edges of the cover plate 6 can also be installed in the installation cavity openably and closably through a door hinge On one side edge of the chamber 100. And a door handle 70 is arranged on the upper side 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 Figure 5, the holding mechanism 71 includes a door catch 714, a door catch return spring 718, a door catch moving guide rod 715, a door handle reset torsion spring 711, a rotation transfer ring 710, a damping ring 712 and a snap ring 713; The buckle 714 is movably installed on the edge of the cover plate 6 by two door buckle moving guide rods 715, and is driven by the elastic restoring force of the door buckle return spring 718 which is sleeved on the outside of the door buckle moving guide rod 715, and It can reciprocate between the locked position and the unlocked position, and the elastic restoring force of the door catch return spring 718 forces the door catch 714 to move toward the edge near the installation chamber 100 and engage at the edge, so that the door catch 714 is locked. position; when the door handle 70 drives the rotation transmission ring 710 to rotate, and the protrusion on it is used 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, away from the edge of the installation chamber 100 When the door handle 70 is released, the rotation transfer ring 710 is reset to contact the push-pull force of the door catch 714 under the reset force of the door handle return torsion spring 711, thereby in the door catch return spring 718. Under the action of the elastic restoring force, the door catch 714 returns to the locked position.

Two hinge lugs 60 are protrudingly arranged on the inner plate surface of the cover plate 6 near the edge of the door hinge 11, and a plurality of hinge holes 601 arranged at intervals are arranged on the hinge lugs 60; The end of the door hinge 11 is pivotably hinged with the hinge lug 60 through the cooperation of the hinge screw 602 and the hinge hole 601; among all the cavity side wall structures 3, the outermost cavity side wall structure 3 is fixed by the screw 91. It is provided on the inner surface of the cover plate 6, specifically, a groove for fitting the heating element is concavely formed on the inner surface of the cover plate 6, and the fixed connection is realized based on the pressing effect 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 lug 6 through the hinge structure, and is swingably hinged to the hinge lug 6 .

In this embodiment, in order to improve the structural strength of the innermost cavity side wall structure 3, it can be directly fixedly connected to the cavity bottom surface of the installation cavity 100, or a support plate can be added for structural reinforcement, in this embodiment, it is Structural reinforcement is carried out by adding support plates. The specific structure is shown in Figure 8. A support plate 38 of a plate-like structure is used for structural reinforcement, and the lower end of the support plate 38 is provided with hinged holes for hinged connection with the hinged lugs 60. 3806, and the permanent magnet block 92 and the protruding column 99 are arranged thereon; thereby through the cooperation of the hinge screw 603, the hinge hole 3806 and the hinge hole 601, the innermost cavity side wall structure 3 and the hinge ear seat 6 can be Oscillatingly articulated. That is to say, in this embodiment, the innermost side wall structure 3 and the cavity side wall structure which is integrally connected with the heat insulation layer structure 4 are hinged to the same hinged ear seat, so that they form a page-turning structure; And in the process of forming the page-turning structure, according to the arrangement sequence of different cavity side wall structures, their lower ends are also hinged with the hinge holes 601 arranged on the hinge lugs 6 according to this sequence, so that they can be separated by a predetermined distance. Hinged to different positions on the hinged lugs 6 at intervals can effectively ensure that the side wall structure of the cavity is roughly maintained in a state of being arranged in parallel during heating and use.

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 elastic restoring force is used to force the distance between the two heat conducting plates 30 constituting the side walls of the same first heating chamber 20 to shrink, that is, to make the space between the two chamber side wall structures 3 of the same first heating chamber 20 The spacing is releasably reduced. For this pre-fixed connection structure, a magnetic attraction structure can be selected for construction, specifically a permanent magnet block 92 fixed on the inner surface of the cavity side wall structure 3 with a pair of opposite magnetic poles arranged oppositely, or a magnet block 92 and a Iron-supported support frame 5 or heat conduction plate is constructed. In addition, the pre-fixed connection structure can also be constructed by using a vacuum chuck structure or a spring that can output elastic restoring force. For example, two chambers of the same first heating chamber 20 A tension spring is arranged on the side wall, that is, one end of the tension spring is correspondingly fixedly connected with a cavity side wall structure; in this embodiment, a magnet block is used for construction, which can effectively There is no need for medium transmission, which reduces the interference in the process of putting in and taking out the heating container 01 . Therefore, during use, the pre-positioning of the solution heating container can be realized, and the heating position can be prevented from shifting. During use, with the opening and closing of the cover plate 6, the two first heating chambers 20 are then inserted into the installation chamber 100 or taken out from the installation chamber 100, that is, the two first heating chambers 20 The solution heating container 01 is then put into the installation chamber 100 together 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 insulation layer structure 4 .

As shown in Figure 13, the solution heating container 01 includes a heating coil 011 and a pick-and-place suit bag 012 set outside the heating coil 011. In this embodiment, the pick-and-place suit bag 012 is a vacuum packaging bag structure; In order to facilitate the preinstallation 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 more than two set columns, and the pick-and-place set bag 012 A set hole 013 matching the set column is arranged on the top; in this embodiment, some set columns are constructed with permanent magnet blocks 92 , and some are constructed with raised columns 99 . Therefore, during use, the pre-positioning of the solution heating container can be realized, and the heating position can be prevented from shifting.

In this embodiment, for temperature monitoring, dual temperature sensors 96 can be used for redundant setting, and the upper limit of detection temperature of one is higher than the upper limit of detection temperature of the other, effectively improving the accuracy of detection and avoiding excessive temperature And the detection temperature sensor 96 is invalidated, and the accommodating groove 400 for installing the temperature sensor 96 is arranged on the heat shield 40, so that the temperature sensor 96 can be close to the heating element for temperature monitoring; that is, the temperature sensor 96 is arranged on 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 anti-bending structure of pipelines is provided on the cover plate 6 and the main body 10 of the equipment, which can effectively reduce the problem of pipeline bending due to improper operation. A pinch groove 68 for securing the heating line is constructed.

During the use of the above-mentioned blood purification equipment, not only can the overall structure be made more compact based on the stacked arrangement of the two first heating chambers in the thickness direction, but also based on the arrangement of the heat insulation for solid connection between the side wall structures of the two chambers. Layer structure, which can effectively ensure that each heating chamber independently heats the container contained 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 temperature monitoring and fitting requirements of the heating element; for example, in the plasma replacement or plasma adsorption therapy mode of supplementing plasma and replacement fluid for patients, the plasma and replacement fluid must be heated; generally, plasma Keep it in the refrigerator. The temperature of the plasma just taken out of the refrigerator is 5°C, but the replacement fluid is stored at room temperature, with a temperature of 25°C. At this time, the heating units of the two first heating chambers 20 can be used Different heating powers heat plasma and replacement fluid simultaneously to the body temperature of 37°C, effectively reducing the patient’s body temperature loss during treatment and effectively ensuring the safety of blood purification treatment.

Example 2

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

With the structure shown in Figure 14, the layout position of the hinged lugs 6 is refitted from the fixed on the cover plate in the above-mentioned embodiment 1 to the fixed on the bottom surface of the installation chamber 100; at this time, a pair of The pre-fixed structure 81 composed of two permanent magnet blocks arranged opposite to each other is used to releasably pre-fix two adjacent cavity side wall structures into the installation chamber 100, that is, in this embodiment, The pre-fixed structure is used to fix all the cavity side wall structures 3 into a releasable integrated structure, and is used to releasably fix the integrated structure to the base that is fixed to the aforementioned hinged lug 6 . In this embodiment, there are two layers of heat insulating layer structure, so that three first heating chambers 20 arranged in stacked layers are constructed.

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

At this time, a pull rod 82 for pulling all the cavity sidewall structures away from the installation chamber 100 needs to be fixedly connected to the innermost cavity sidewall structure.

Example 3

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

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

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

Example 4

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

In the above-mentioned Embodiment 1 to Embodiment 2, the lower end of the cavity side wall structure 3 that constitutes the page-turning structure is hinged through the hinge positions with a predetermined distance, as shown in Figure 16. In this embodiment, based on the bending arrangement The connecting relationship of the connecting plates 83 can be hinged to the same hinge shaft 84 to form a page-turning structure.

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

Example 5

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

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

On the inner plate surface of the cover plate 6, a hinged ear seat 60 is protrudingly fixed, and a hinged ear hole is provided on the hinged ear seat 60, and the screw is connected with the fixed screw hole on the hinged end of the aforementioned integrated structure. Cooperate, and the aforementioned integrated structure is hinged to the hinged 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.

On the top surface of the heat insulation layer structure 4 is fixedly provided with a clamping groove 400 for clamping pipelines.

During use, the first heating container is placed in the outermost first heating chamber, and the magnet block fixed on the upper end of the chamber side wall structure is used to pre-fix the outer first heating chamber, while Keep the heating container accommodated therein; then, another heating container is fixed on the inner side plate surface of the aforementioned one-piece structure by using a post-hole matching structure or pre-fixed by magnet adsorption, and the aforementioned first second heating container is closed by using the cover plate 6 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 on both sides of the same first heating chamber are against each other so that the page turning structure does not swing, that is, At this time, the inner chamber of each first heating chamber 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 the thickness of multiple heating containers. The thickness of the chamber, and during the heating process, the thickness of the heating container can be adjusted between adjacent first heating chambers, thereby effectively reducing the bursting probability of the heating container during the heating process. That is to say, 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 swing axis within a predetermined small angle. The "predetermined small angle" is set according to the actual design, usually less than 5 degrees , so that the two-chamber sidewall structures of the first heating chamber can be maintained in a substantially parallel state. That is to say, in the solution heating container, most of the chamber sidewall structures on the first heating chamber 20 arranged in layers are set as a page-turning structure, and have a certain turning angle, so that during use, the The chamber side wall structure can swing within a predetermined range, and the distance between the two chamber side walls can be adjusted in a small range, so that the distance between the outermost two chamber side wall structures can be adjusted due to the cover plate 6 and the installation chamber 100. When the bottom surface of the cavity remains unchanged, the actual thickness of the heating cavity can be adjusted between different heating cavities according to the thickness of the heating container accommodated 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 container with large expansion caused by large temperature change can obtain part of the thickness change of the heating chamber from the heating container with small temperature change, thereby effectively reducing the risk of the heating container bursting.

In the above embodiment, with reference to the structure shown in Figure 7, the diameter of the hinged hole 601 can be set to be slightly larger than the diameter of the transfer screw, so that the side wall of the heating chamber can move within a certain range, preventing the heating container 01 from being damaged Extrusion cracking caused by thermal expansion.

In the foregoing embodiment, with reference to the structure shown in Figure 2, the binding force of the pre-fixed structure is less than the pressure that the solution heating container 01 ruptures, that is, the adsorption force between the magnet blocks 92 is less than the pressure that the heating container 01 ruptures, 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 crushed, and ensuring the safety of the treatment process.

Claims (20)

1. A blood purification device, comprising a main body of the device and a blood pump and a solution heating device arranged on the main body of the device, the solution heating device includes a first heating chamber for accommodating and heating the solution heating container, The first heating chamber includes chamber sidewall structures for clamping the solution heating container from opposite sides, characterized in that: The solution heating device includes more than two first heating chambers, and is used for releasably maintaining the two or more first heating chambers in a stacked arrangement in a heating state. Mechanism; two adjacent chamber sidewall structures on two first heating chambers arranged adjacently are fixedly connected into one structure; the state maintaining mechanism includes a cover plate and is fixed on the main body of the equipment an installation seat, the cover plate and the installation seat enclose an installation chamber for accommodating the first heating chamber; Among all the chamber sidewall structures of the two or more first heating chambers, relative to the equipment main body, at least two consecutively arranged chamber sidewall structures can swing around hinge shafts to form a page-turning structure so that the cavity side wall structure on at least one side of each first heating cavity can swing around the swing axis, so that the solution heating device constitutes a page-turning multi-chamber heating device. 2. The blood purification device according to claim 1, characterized in that: In the heating state, at least part of the integrated structure can swing around the swing axis within a predetermined small angle. 3. The blood purification device according to claim 1 or 2, characterized in that: The first heating chamber and the chamber sidewall structures on both sides are flat structures; a heat insulating layer structure is arranged between the two chamber sidewall structures that are fixedly connected into the integrated structure; The lower side edge of the cover plate is openably and closably mounted on one side edge of the mounting seat through a door hinge; There are hinged ear seats protruding from the inner surface of the cover plate; Among all the chamber sidewall structures of the two or more first heating chambers, one outermost chamber sidewall structure is fixed on the inner plate surface of the cover plate, and the other outermost chamber sidewall structure The lower ends of the structure and all the integrated structures are hinged on the hinged lugs through hinge shafts, and their hinged ends are hinged to the hinged lugs at predetermined intervals according to the order of arrangement. The arrangement sequence is the arrangement sequence 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, and 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 fixed through hinge shafts. are hinged on the hinged lugs, and their hinged ends are hinged to the hinged lugs at predetermined intervals according to an arrangement sequence, the arrangement sequence being that the cavity side wall structure to which the hinged ends are connected is heating Arrangement order in state; A pre-fixed connection structure is arranged between the two cavity side wall structures of the same first heating cavity, which is used to releasably connect the two cavity side wall structures or has a structure for forcing the two cavity side wall structures The elastic restoring force between the shrinkage of the spacing. 4. The blood purification device according to claim 3, characterized in that: The pre-fixed structure includes a magnetic attraction structure, a vacuum chuck structure or a spring structure; A plurality of pipe clamping grooves are recessedly provided on the upper edge of the cover plate, and each of the pipe clamping grooves is used to clamp a single conveying pipe. 5. The blood purification device according to claim 1 or 2, characterized in that: Among all the chamber sidewall structures of the two or more first heating chambers, relative to the equipment 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. 6. The blood purification device according to claim 4, characterized in that: Among all the chamber sidewall structures of the two or more first heating chambers, relative to the equipment main body, the two outermost chamber sidewall structures and the ends of all the integral structures can be hinged The shaft swings to form a page-turning structure. 7. The blood purification device according to claim 6, characterized in that: In the two or more first heating chambers, in all the side chamber wall structures forming the page-turning structure, more than two hinged ends arranged in succession are hinged to the hinged lugs at predetermined intervals according to the sequence of arrangement ; The arrangement sequence is the arrangement sequence of the cavity side wall structure connected to the hinged end in the heating state. 8. The blood purification device according to claim 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 an installation chamber for accommodating the first heating chamber; The lower side edge or one side edge of the cover plate is mounted on one side edge of the mounting seat in an openable and closable manner through a door hinge. 9. The blood purification device according to claim 5, characterized in that: A heat insulation layer structure is arranged between the two cavity side wall structures that are fixedly connected into the integral structure; A heating element is arranged at least on the cavity side wall structure constituting the integrated structure; The chamber 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 chamber, and a heat conduction plate that is closely arranged on the outer plate surface of the heat conduction plate and is in the form of a sheet structure of the heating element. 10. The blood purification device according to claim 5, characterized in that: In the two or more first heating chambers, in all the side chamber wall structures forming the page-turning structure, more than two hinged ends arranged in succession are hinged to the hinged lugs at predetermined intervals according to the sequence of arrangement ; The arrangement sequence is the arrangement sequence of the cavity side wall structure connected to the hinged end in the heating state. 11. The blood purification device according to claim 5, 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 an installation chamber for accommodating the first heating chamber; The lower side edge or one side edge of the cover plate is mounted on one side edge of the mounting seat in an openable and closable manner through a door hinge. 12. The blood purification device according to claim 5, characterized in that: A heat insulation layer structure is arranged between the two cavity side wall structures that are fixedly connected into the integral structure; A heating element is arranged at least on the cavity side wall structure constituting the integrated structure; The chamber 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 chamber, and a heat conduction plate that is closely arranged on the outer plate surface of the heat conduction plate and is in the form of a sheet structure of the heating element. 13. The blood purification device according to claim 5, characterized in that: The first heating chamber is a flat structure. 14. The blood purification device according to claim 1 or 2, characterized in that: In the two or more first heating chambers, in all the side chamber wall structures forming the page-turning structure, more than two hinged ends arranged in succession are hinged to the hinged lugs at predetermined intervals according to the sequence of arrangement ; The arrangement sequence is the arrangement sequence of the cavity side wall structure connected to the hinged end in the heating state. 15. The blood purification device according to claim 14, 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 an installation chamber for accommodating the first heating chamber; The lower side edge or one side edge of the cover plate is mounted on one side edge of the mounting seat in an openable and closable manner through a door hinge. 16. The blood purification device according to claim 1 or 2, 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 an installation chamber for accommodating the first heating chamber; The lower side edge or one side edge of the cover plate is mounted on one side edge of the mounting seat in an openable and closable manner through a door hinge. 17. The blood purification device according to claim 16, characterized in that: A hinged lug seat is protrudingly fixed on the inner surface of the cover plate for hinged hinge ends of the cavity side wall structure forming the page turning structure; A pre-fixed connection structure is arranged between the two cavity side wall structures of the same first heating cavity, which is used to releasably connect the two cavity side wall structures or has a structure for forcing the two cavity side wall structures The elastic restoring force between the shrinkage of the spacing. 18. The blood purification device according to claim 17, characterized in that: The pre-fixed structure includes a magnetic attraction structure, a vacuum chuck structure or a spring structure; A plurality of pipe clamping grooves are recessedly provided on the upper edge of the cover plate, and each of the pipe clamping grooves is used to clamp a single conveying pipe. 19. The blood purification device according to claim 1 or 2, characterized in that: A heat insulation layer structure is arranged between the two cavity side wall structures that are fixedly connected into the integral structure; A heating element is arranged at least on the cavity side wall structure constituting the integrated structure; The chamber 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 chamber, and a heat conduction plate which is closely arranged on the outer plate surface of the heat conduction plate and is in the form of a sheet structure of the heating element. 20. The blood purification device according to claim 1 or 2, characterized in that: The first heating chamber is a flat structure.