Blood temperature monitoring device for hemodialysis

Abstract

The utility model relates to the technical field of hemodialysis temperature measurement, and provides a blood temperature monitoring device for hemodialysis, which comprises an assembly base, a blood temperature monitoring module is arranged on the assembly base, and the blood temperature monitoring module comprises an arterial blood temperature monitoring module and a venous blood temperature monitoring module. The arterial blood temperature monitoring module and the venous blood temperature monitoring module are connected with a main circuit board installed on the assembly base, the arterial blood temperature monitoring module comprises an arterial monitoring base, an arterial temperature sensing element is installed in the arterial monitoring base, and an arterial elastic cover plate and an arterial elastic buckle plate which are matched with each other are installed at the two ends of the arterial monitoring base respectively; the venous blood temperature monitoring module and the venous blood temperature monitoring module have the same structure; according to the blood temperature monitoring device, measurement of arteriovenous pipelines can be completed at the same time, the structure is simple, the integration level is high, the artery elastic cover plate and the artery elastic buckle plate which are matched with each other are arranged in the blood temperature monitoring module, opening and closing are convenient, pipeline mounting and dismounting are convenient, and the operation process is simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of blood dialysis temperature measurement, and particularly relates to a blood temperature monitoring device for blood dialysis. Background Art

[0002] Hemodialysis is a common method for renal replacement therapy in blood purification methods and is an effective measure for treating acute and chronic renal failure clinically; during hemodialysis, the venous catheter is used to transfuse blood back to the patient. If the temperature of the transfused blood is too different from the patient's body temperature, it will increase the patient's pain to varying degrees. Although reducing the dialysis fluid temperature to 35 or 35.5 °C can reduce the incidence of hypotension in some patients, the actual effect may depend on the patient's body temperature before dialysis. During low-temperature dialysis, the body temperature of some patients may drop rapidly, and they will feel shivering and discomfort, while the body temperature of some other patients may still rise; therefore, by monitoring the patient's blood temperature and controlling and adjusting the temperature of the dialysis fluid to adjust the change of blood temperature, it has important significance for improving the patient's dialysis experience during hemodialysis.

[0003] In the existing product technology, hemodialysis machines usually use heat conduction components to achieve the blood temperature monitoring function. The heat of the blood line is transferred to the heat conduction component, and then the temperature sensor monitors the temperature of the heat conduction component to indirectly measure the temperature of the liquid in the blood line. This method has low efficiency in feedbacking the temperature of the liquid during back-transfusion, indirectly measures the temperature of the heat conduction component, has heat loss in the middle, and slow response speed; in addition, the existing monitoring device has only one set of blood lines and can only monitor the arterial or venous blood temperature, and the two cannot be monitored simultaneously. In actual use, multiple sets of monitoring devices are required, and the operation is relatively cumbersome. Summary of the Utility Model

[0004] Based on this, the purpose of the utility model is to provide a blood temperature monitoring device for blood dialysis in view of the deficiencies of the prior art.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A blood temperature monitoring device for blood dialysis, including an assembly base, on which a blood temperature monitoring module is installed. It is characterized in that the blood temperature monitoring module includes an arterial blood temperature monitoring module and a venous blood temperature monitoring module. The arterial blood temperature monitoring module and the venous blood temperature monitoring module are connected to the main circuit board installed on the assembly base (1). The arterial blood temperature monitoring module includes an arterial monitoring base, inside which an arterial temperature sensing element is installed. At both ends of the arterial monitoring base, an arterial elastic cover plate and an arterial elastic buckle plate that cooperate with each other are installed respectively. The venous blood temperature monitoring module has the same structure as the venous blood temperature monitoring module.

[0007] As a further improvement of the present utility model, an arterial pipeline installation groove is formed on the arterial monitoring base, an arterial temperature sensing through hole communicating with the arterial pipeline installation groove is formed on the arterial monitoring base, and an arterial temperature sensing element fixed to the arterial monitoring base is installed in the arterial temperature sensing through hole.

[0008] As a further improvement of the present utility model, a convex circular groove is provided on the arterial elastic cover plate, a hollow cylinder matching with the convex circular groove is provided on the arterial monitoring base, the convex circular groove and the hollow cylinder are connected by a first through cylindrical pin, and a torsion spring is installed on the first through cylindrical pin.

[0009] As a further improvement of the present utility model, a through hole edge and a first spring fixing column are provided on the arterial elastic buckle plate, a clamping groove matching with the through hole edge is provided on the arterial monitoring base, the through hole edge and the clamping groove are connected by a second through cylindrical pin, a second spring fixing column matching with the first spring fixing column is provided on the arterial monitoring base, and a cylindrical spring is connected between the first spring fixing column and the second spring fixing column.

[0010] As a further improvement of the present utility model, a cover plate buckle is provided on the arterial elastic cover plate, a clamping convex edge matching with the cover plate buckle is provided on the arterial elastic buckle plate, and the cover plate buckle and the clamping convex edge cooperate to complete the buckling and fixing of the arterial elastic cover plate and the arterial elastic buckle plate.

[0011] As a further improvement of the present utility model, a rotating folding edge is provided on the arterial elastic buckle plate.

[0012] As a further improvement of the present utility model, pipeline fixing protrusions are arranged inside the arterial elastic cover plate.

[0013] As a further improvement of the present utility model, the pipeline fixing protrusions are arc-shaped that fit the pipe body.

[0014] As a further improvement of the present utility model, a module positioning groove is provided on the arterial monitoring base, and a module positioning protrusion matching with the module positioning groove is provided on the assembly base.

[0015] As a further improvement of the present utility model, an arterial mark is provided on the arterial blood temperature monitoring module, and a venous mark is provided on the venous blood temperature monitoring module.

[0016] The beneficial effects of the present utility model are:

[0017] 1. The utility model provides a blood temperature monitoring device for hemodialysis, which includes an arterial blood temperature monitoring module and a venous blood temperature monitoring module connected to the main circuit board. It can simultaneously measure the arterial and venous pipelines, with a simple structure and high integration. Moreover, an arterial elastic cover plate and an arterial elastic buckle plate that cooperate with each other are arranged in the blood temperature monitoring module, which is convenient to open and close, facilitating the installation and disassembly of the pipeline and simplifying the operation process.

[0018] 2. In the utility model, the elastic cover plate and the monitoring base are movably connected through a cylindrical pin and a torsion spring. The elastic cover plate has an automatic ejection function. The arterial elastic buckle plate and the monitoring base are movably connected through a cylindrical pin and a spring. After pressing the arterial elastic buckle plate, it has an automatic reset function. The cooperation of the two enables the blood temperature monitoring module to be opened by pressing the arterial elastic buckle plate and fixed by pressing the elastic cover plate. The structure is simple and the operation is convenient, simplifying the operation process.

[0019] 3. In the utility model, pipeline installation grooves and temperature sensing through holes that communicate with each other are formed on the arterial and venous monitoring base. The temperature sensing element in the temperature sensing through hole can directly contact the pipeline to measure the blood temperature without using a heat conduction component, with high measurement accuracy, fast response speed, and more accurate and reliable monitoring results. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0021] Attached Figure 1 is a schematic diagram of the overall structure of the present utility model.

[0022] Attached Figure 2 is an exploded view of the overall structure of the present utility model.

[0023] Attached Figure 3 is a schematic diagram of the structure of the arterial blood temperature monitoring module of the present utility model.

[0024] Attached Figure 4 is an exploded view of the structure of the arterial blood temperature monitoring module of the present utility model.

[0025] Attached Figure 5 is a partial exploded view of the structure of the arterial blood temperature monitoring module of the present utility model.

[0026] Attached Figure 6 is a bottom view of the arterial blood temperature monitoring module of the present utility model.

[0027] In the figure: 1 is the assembly base, 101 is the module positioning protrusion, 2 is the main circuit board, 3 is the arterial monitoring base, 301 is the arterial pipeline installation groove, 302 is the arterial temperature sensing through hole, 303 is the hollow cylinder, 304 is the clamping groove, 305 is the second spring fixing column, 306 is the positioning groove, 4 is the arterial temperature sensing element, 5 is the arterial elastic cover plate, 501 is the convex circular groove, 502 is the cover plate buckle, 503 is the pipeline fixing protrusion, 6 is the arterial elastic buckle plate, 601 is the through hole card edge, 602 is the first spring fixing column, 603 is the clamping convex edge, 604 is the rotating folding edge, 7 is the first through cylindrical pin, 8 is the torsion spring, 9 is the second through cylindrical pin, 10 is the cylindrical spring. Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] As Figure 2 shown, a blood temperature monitoring device for hemodialysis includes an assembly base 1, and a blood temperature monitoring module is installed on the assembly base 1. It is characterized in that the blood temperature monitoring module includes an arterial blood temperature monitoring module and a venous blood temperature monitoring module. The arterial blood temperature monitoring module and the venous blood temperature monitoring module are connected to the main circuit board 2 installed on the assembly base 1. The arterial blood temperature monitoring module includes an arterial monitoring base 3. The arterial detection base 3 is in the shape of an arc convex, with a long concave circular groove in the middle, and is internally hollowed out to accommodate circuit sensor elements. An arterial temperature sensing element 4 is installed inside the arterial monitoring base 3. An arterial elastic cover plate 5 and an arterial elastic buckle plate 6 that cooperate with each other are installed at both ends of the arterial monitoring base 3. The venous blood temperature monitoring module has the same structure as the venous blood temperature monitoring module.

[0030] Preferably, the arterial temperature sensing element 4 includes an arterial temperature sensing circuit board and an arterial temperature sensor, and the arterial temperature sensing circuit board is connected to the main circuit board 2.

[0031] Preferably, the lower end surface of the arterial elastic cover plate 5 has the same shape as the upper end surface of the arterial monitoring base 3 to facilitate fixing the arterial pipeline in the arterial monitoring base 3.

[0032] In a specific embodiment, further, an arterial pipeline installation groove 301 is opened on the arterial monitoring base 3, an arterial temperature sensing through hole 302 communicating with the arterial pipeline installation groove 301 is opened on the arterial monitoring base 3, and the arterial temperature sensing element 4 fixed to the arterial monitoring base 3 is installed in the arterial temperature sensing through hole 302.

[0033] Preferably, the arterial pipeline installation groove 301 is a circular groove that fits the arterial pipeline.

[0034] Preferably, the arterial temperature sensing through hole 302 is square to adapt to the shape of the temperature sensing element.

[0035] In a specific embodiment, further, a convex circular groove 501 is provided on the arterial elastic cover plate 5, a hollow cylinder 303 that cooperates with the convex circular groove 501 is provided on the arterial monitoring base 3, the convex circular groove 501 and the hollow cylinder 303 are connected by a first through cylindrical pin 7, and a torsion spring 8 is installed on the first through cylindrical pin 7.

[0036] Preferably, a groove for placing the extended end of the torsion spring 8 is provided on the arterial monitoring base 3 to prevent the torsion spring 8 from moving left and right during use.

[0037] In a specific embodiment, further, a through hole card edge 601 and a first spring fixing column 602 are provided on the arterial elastic buckle plate 6, a clamping groove 304 that cooperates with the through hole card edge 601 is provided on the arterial monitoring base 3, the through hole card edge 601 and the clamping groove 304 are connected by a second through cylindrical pin 9, a second spring fixing column 305 that cooperates with the first spring fixing column 602 is provided on the arterial monitoring base 3, and a cylindrical spring 10 is connected between the first spring fixing column 602 and the second spring fixing column 305.

[0038] In a specific embodiment, further, a cover plate buckle 502 is provided on the arterial elastic cover plate 5, a clamping convex edge 603 that cooperates with the cover plate buckle 502 is provided on the arterial elastic buckle plate 6, and the cover plate buckle 502 and the clamping convex edge 603 cooperate to complete the buckling and fixing of the arterial elastic cover plate 5 and the arterial elastic buckle plate 6.

[0039] In a specific embodiment, further, a rotating folding edge 604 is provided on the arterial elastic buckle plate 6 to facilitate finger operation to press the arterial elastic buckle plate 6.

[0040] In a specific embodiment, further, pipeline fixing protrusions 503 are provided inside the arterial elastic cover plate 5, and the pipeline fixing protrusions 503 are used to fix the pipeline in the arterial pipeline installation groove 301.

[0041] In a specific embodiment, further, the pipeline fixing protrusions 503 are arc-shaped and fit the pipe body.

[0042] In a specific embodiment, further, a module positioning groove 306 is provided on the artery monitoring base 3, and a module positioning protrusion 101 matching the module positioning groove 306 is provided on the assembly base 1.

[0043] In a specific embodiment, further, an artery identifier is provided on the arterial blood temperature monitoring module, and a vein identifier is provided on the venous blood temperature monitoring module.

[0044] Preferably, a red spray-painted mark can be used to identify arterial blood, and a blue spray-painted mark can be used to identify venous blood.

[0045] The specific working process is as follows: When using the blood temperature monitoring device, press and rotate the folding edge 604, the cover buckle 502 is separated from the clamping convex edge 603, the arterial elastic cover 5 automatically pops open under the action of the torsion spring 8, the arterial elastic buckle plate 6 automatically resets under the action of the cylindrical spring 10, the arterial blood temperature monitoring module is opened, the arterial pipeline is assembled into the arterial pipeline installation groove 301, and then the arterial elastic cover 5 is buckled. Under the action of the buckling force, the cover buckle 502 pushes open the arterial elastic buckle plate 6 and buckles and fixes it with the clamping convex edge 603. At this time, under the action of the cylindrical spring 10, the arterial elastic buckle plate 6 presses the cover buckle 502, and the arterial pipeline installation is completed. The venous pipeline is installed in the same way. The test results of the arterial temperature sensing element 4 and the venous temperature sensing element are transmitted to the display device through the main circuit board 2, and the blood temperature monitoring operation can be completed.

[0046] It can be understood that the above specific description of the present invention is only for explaining the present invention and is not limited by the technical solutions described in the embodiments of the present invention. Those of ordinary skill in the art should understand that the present invention can still be modified or equivalently replaced to achieve the same technical effect; as long as it meets the usage requirements, it is within the protection scope of the present invention.

[0047] It should also be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, the elements defined by the statement "including..." do not exclude the existence of additional identical elements in the process, method, article or device including the said elements.

Claims

1. A blood temperature monitoring device for hemodialysis, comprising an assembly base (1), on which a blood temperature monitoring module is mounted, characterized in that: The blood temperature monitoring module comprises an arterial blood temperature monitoring module and a venous blood temperature monitoring module. The arterial blood temperature monitoring module and the venous blood temperature monitoring module are connected to a main circuit board (2) installed on an assembly base (1). The arterial blood temperature monitoring module comprises an arterial monitoring base (3). An arterial temperature sensing element (4) is installed inside the arterial monitoring base (3). Mutually matching arterial elastic cover plates (5) and arterial elastic buckle plates (6) are installed at both ends of the arterial monitoring base (3). The venous blood temperature monitoring module has the same structure as the arterial blood temperature monitoring module.

2. The blood temperature monitoring device for hemodialysis according to claim 1, characterized in that: The arterial monitoring base (3) is provided with an arterial pipeline installation groove (301), the arterial monitoring base (3) is provided with an arterial temperature sensing through hole (302) connected to the arterial pipeline installation groove (301), and an arterial temperature sensing element (4) fixed to the arterial monitoring base (3) is installed in the arterial temperature sensing through hole (302).

3. The blood temperature monitoring device for hemodialysis according to claim 1, characterized in that: The arterial elastic cover plate (5) is provided with a raised circular groove (501), and the arterial monitoring base (3) is provided with a hollow cylinder (303) that matches the raised circular groove (501). The raised circular groove (501) and the hollow cylinder (303) are connected via a first through cylindrical pin (7), and a torsion spring (8) is installed on the first through cylindrical pin (7).

4. The blood temperature monitoring device for hemodialysis according to claim 1, characterized in that: The arterial elastic buckle plate (6) is provided with a through-hole clamping edge (601) and a first spring fixing column (602); the arterial monitoring base (3) is provided with a clamping groove (304) that matches the through-hole clamping edge (601); the through-hole clamping edge (601) and the clamping groove (304) are connected via a second through cylindrical pin (9); the arterial monitoring base (3) is provided with a second spring fixing column (305) that matches the first spring fixing column (602); a cylindrical spring (10) is connected between the first spring fixing column (602) and the second spring fixing column (305).

5. The blood temperature monitoring device for hemodialysis according to claim 1, characterized in that: The arterial elastic cover plate (5) is provided with a cover plate buckle (502), and the arterial elastic buckle plate (6) is provided with a snap-fitting convex edge (603) that cooperates with the cover plate buckle (502). The cover plate buckle (502) and the snap-fitting convex edge (603) cooperate to complete the snap-fitting fixation of the arterial elastic cover plate (5) and the arterial elastic buckle plate (6).

6. The blood temperature monitoring device for hemodialysis according to claim 1, characterized in that: The arterial elastic buckle plate (6) is provided with a rotating folded edge (604).

7. The blood temperature monitoring device for hemodialysis according to claim 1, characterized in that: A pipeline fixing protrusion (503) is provided inside the arterial elastic cover plate (5).

8. The blood temperature monitoring device for hemodialysis according to claim 7, characterized in that: The pipeline fixing protrusion (503) is in the shape of an arc that fits the pipe body.

9. The blood temperature monitoring device for hemodialysis according to claim 1, characterized in that: The artery monitoring base (3) is provided with a module positioning groove (306), and the assembly base (1) is provided with a module positioning protrusion (101) that matches the module positioning groove (306).

10. The blood temperature monitoring device for hemodialysis according to claim 1, characterized in that: The arterial blood temperature monitoring module is provided with an arterial mark, and the venous blood temperature monitoring module is provided with a venous mark.

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