Relative blood volume detection device

Abstract

The utility model relates to the technical field of medical instruments, and particularly discloses a relative blood volume detection device which comprises a shell, a front cover, a rear cover and a pipeline to be detected, and the shell is movably connected with the front cover and the rear cover respectively. The movable clamp is arranged on one side of the shell and is used for fixing a lug boss at the front edge position of the front cover through a front end buckling position, so that the front cover is attached to the surface of the shell; and a placing channel for a pipeline to be detected is arranged along the vertical direction of the center of the faying surface of the shell. The device further comprises a photoelectric module structural member arranged in the shell, a U-shaped through groove capable of containing a pipeline to be detected is formed along a photoelectric module structural member body and corresponds to the channel, a first emitter and a second emitter are arranged on one side of the U-shaped through groove, a second receiver and a spectroscope are arranged on the other side of the U-shaped through groove, and the spectroscope is arranged at an angle of 45 degrees along the side face of the groove. A first receiver is arranged along the back of the spectroscope.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a relative blood volume detection device. Background Art

[0002] With the widespread clinical application of hemodialysis equipment, real-time monitoring of patient blood volume has become an important task in the field of hemodialysis in recent years. Blood volume testing can provide real-time information on the patient's relative blood volume, which has important clinical guiding significance for understanding the patient's hydration status, preventing symptomatic hypotension and refractory hypertension, adjusting dry weight, and formulating dialysis plans.

[0003] In the existing technical field, the main principle of the relative blood volume device is the ultrasonic detection method, which only uses some simple structural designs and some components to complete the detection function, without considering the structure itself, and is inconvenient to operate. At the same time, during the operation of the detection device, the measured pipeline is placed in it and is in an unprotected state, which is easily affected by external factors, resulting in errors in the measurement results. In addition, its structure cannot be modularized, and later maintenance and repair are more difficult. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide a relative blood volume detection device to address the deficiencies of the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A relative blood volume detection device comprises a housing, a front cover, a rear cover and a pipeline to be tested, wherein the housing is movably connected to the front cover and the rear cover respectively; and further comprises

[0007] The movable card is arranged on one side of the shell, and fixes the raised portion at the front edge of the front cover through the front snap-fit ​​position to fit the front cover to the shell surface; a placement channel for the pipeline to be tested is arranged along the vertical direction of the center of the shell fitting surface;

[0008] The optoelectronic module structure is arranged inside the shell, and a U-shaped through groove that can accommodate the pipeline to be tested is provided along the optoelectronic module structure body, and the U-shaped through groove is arranged corresponding to the channel. A first transmitter and a second transmitter are provided on one side of the U-shaped through groove, and a second receiver and a spectroscope arranged at 45° along the side of the groove are provided on the other side, and a first receiver is provided along the back of the spectroscope.

[0009] As a further improvement of the utility model, the shell and the front cover are rotatably connected via a rotating shaft, and a torsion spring for providing opening force to the front cover is provided at the position of the rotating shaft.

[0010] As a further improvement of the present invention, the shell and the back cover are slidably connected via sliding grooves provided on both sides of the bottom of the shell, and a slot for mounting the detection device on a support rod of the device is provided on the outer side of the back cover.

[0011] As a further improvement of the utility model, the movable card is connected to the pin seat on one side of the shell through a pin, and a compression spring is installed on the shell at the bottom of the end of the movable card through a compression spring fixing position. By pressing the end of the movable card, the front end buckling position can be pressed up or down.

[0012] As a further improvement of the present invention, the first receiver is provided with two vertically arranged receiving ends, and each receiving end is arranged at 45° with respect to the beam splitter plane.

[0013] As a further improvement of the utility model, both ends of one side of the front cover that fits the shell are provided with raised fixing positions for fixing the pipeline to be tested, and anti-slip strips are provided between the raised fixing positions at both ends; and multiple U-shaped anti-slip pads are provided in the U-shaped through groove.

[0014] As a further improvement of the present invention, the housing fixes the photovoltaic module structure by arranging a mounting groove, a groove edge positioning rib and a fixing hole structure on the inner side.

[0015] As a further improvement of the utility model, circuit board fixing columns are provided at the connection points of the inner plate edges of the shell, and a circuit board is provided along the side of the optoelectronic module structure away from the front cover, and the circuit board is fixed on the end surface of the circuit board fixing column.

[0016] As a further improvement of the present invention, a water outlet hole is provided on the bottom side plate of the shell between the circuit board and the rear cover, and a wire outlet hole is provided on the bottom side plate of the shell between the circuit board and the optoelectronic module structure.

[0017] As a further improvement of the present invention, the photoelectric module structure can be replaced by an ultrasonic detection structure, which is also provided with a through groove for accommodating the pipeline to be tested, and ultrasonic probes are provided on both sides of the through groove and are placed vertically and symmetrically with the pipeline to be tested.

[0018] The beneficial effects of the utility model are:

[0019] 1. The device uses the photoelectric method to measure relative blood volume. It can be installed with a variety of different sensors, such as temperature sensors, blood volume sensors, etc. It has the function of real-time monitoring of the patient's blood volume level. The real-time status of the patient's blood volume level is connected to the main unit of the hemodialysis machine through a wire, and then identified, processed and displayed by the main unit of the hemodialysis machine.

[0020] 2. The ingenious design of the device's activity card and front cover makes it easy for medical staff to open the front cover with one hand and quickly lock the device, which is conducive to improving medical staff's real-time grasp of the patient's blood volume level, facilitating medical staff to respond promptly to situations arising during dialysis, and guiding doctors to formulate dialysis plans and improve the success rate of dialysis.

[0021] 3. The device is equipped with water outlet holes and wire outlet holes at the appropriate position. If there is water accumulation inside the device, it can be quickly discharged to protect the internal circuits.

[0022] 4. The device is equipped with a sliding push-pull rear cover design, which is convenient for installation and observation of the internal situation of the shell. At the same time, the rear cover is equipped with a slot structure, which can be easily installed on the support rod of the dialysis machine.

[0023] 5. The photoelectric module structure of the device can be replaced with an ultrasonic detection structure, and the relative blood volume can be detected by ultrasonic detection, which is convenient for medical staff to use different detection methods to accurately measure the relative blood volume value. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Attached Figure 1 This is a schematic diagram of the structure of the utility model with the front cover opened.

[0026] Attached Figure 2 This is a schematic diagram of the utility model with the rear cover opened.

[0027] Attached Figure 3 It is a schematic diagram of the back structure of the utility model.

[0028] Attached Figure 4 The internal structure of the utility model is shown in FIG. Figure 1 .

[0029] Attached Figure 5 The internal structure of the utility model is shown in FIG. Figure 2 .

[0030] Attached Figure 6 It is a schematic diagram of the assembly structure of the utility model.

[0031] Attached Figure 7 This is a schematic diagram of the structure of the photovoltaic module structure of the utility model.

[0032] Attached Figure 8This is a schematic diagram of the structure of the transmitter and receiver of the utility model.

[0033] Attached Fig. 9 This is a schematic diagram of the structure of an ultrasonic detection module according to another embodiment of the utility model.

[0034] In the figure: housing 1, front cover 2, rear cover 3, pipeline to be tested 4, movable card 5, optoelectronic module structural part 6, circuit board 7, ultrasonic detection structural part 8, rotating shaft 101, torsion spring 102, slide groove 103, bayonet seat 104, compression spring fixing position 105, installation groove 106, groove edge positioning rib 107, fixing hole 108, circuit board fixing column 109, water outlet hole 110, wire outlet hole 111, channel 112, protrusion fixing position 201, anti-slip strip 202, protrusion 203, slot 301, bayonet 501, front end buckling position 502, compression spring 503, first transmitter 601, second transmitter 602, U-shaped through groove 603, spectroscope 604, first receiver 605, second receiver 606, through groove 801, ultrasonic probe 802. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] like Figure 1-8As shown, a relative blood volume detection device comprises a housing 1, a front cover 2, a rear cover 3 and a pipeline to be tested 4, wherein the housing 1 is movably connected to the front cover 2 and the rear cover 3 respectively. It also comprises an active card 5, which is arranged on one side of the housing 1, and fixes the protrusion 203 at the front edge of the front cover 2 through the front end buckle position 502, so that the front cover 2 is attached to the surface of the housing 1; and a placement channel 112 for the pipeline to be tested 4 is arranged along the vertical direction of the center of the attached surface of the housing 1. It also includes an optoelectronic module structure 6 disposed inside the housing 1, along the main body of the optoelectronic module structure 6 is provided with a U-shaped through groove 603 capable of accommodating the pipeline 4 to be tested, the U-shaped through groove 603 is arranged corresponding to the channel 112, one side of the U-shaped through groove 603 is provided with a first transmitter 601 and a second transmitter 602, the other side is provided with a second receiver 606 and a spectroscope 604 arranged at 45 degrees along the side of the groove, a mirror cover is arranged outside the spectroscope 604, and a first receiver 605 is arranged along the back of the spectroscope 604; the transmitter is used to emit infrared light, the receiver is used to receive infrared light, and the mirror cover is used to seal and fix the spectroscope 604. The transmitter and the receiver are connected to the circuit board 7 through a line. Specifically, the spectroscope 604 allows the infrared light emitted by one of the two transmitters to pass through the pipeline to be tested first, and then is separated by the spectroscope 604 and received by two identical first receivers 605, and the infrared light emitted by the other transmitter 14 passes through the pipeline 4 to be tested and is directly received by the second transmitter 602.

[0037] The front cover 2 is used to shield the measured pipeline 3 from external light, so as to prevent the internal test channel from being disturbed by external light and ensure the measurement accuracy.

[0038] Preferably, a plurality of U-shaped anti-slip pads are provided in the U-shaped through groove 603 .

[0039] In a specific embodiment, the housing 1 and the front cover 2 are rotatably connected via a rotating shaft 101, and a torsion spring 102 for providing opening force to the front cover 2 is provided at the position of the rotating shaft 101. When the operator presses the end of the movable card 5, the front cover 2 can be quickly opened by the torsion force applied by the torsion spring 102, and the operator can open the front cover 2 with one hand, which is convenient for the operator to use normally.

[0040] In a specific embodiment, further, the shell 1 and the back cover 3 are slidably connected through slide grooves 103 arranged on both sides of the bottom of the shell 1, and a card slot 301 is provided on the outer side of the back cover 3 for installing the detection device on the equipment support rod.

[0041] In a specific embodiment, further, the movable card 5 is connected to the latch seat 104 on one side of the housing 1 through a latch 501, and a compression spring 503 is installed on the housing 1 at the bottom of the end of the movable card 5 through a compression spring fixing position 105, and the front buckle position 502 can be pressed up or down by pressing the end of the movable card 5. When the movable card 5 buckles and fixes the front cover 2, the compression spring 503 can provide a supporting force for locking the front cover 2. At the same time, it can also ensure that after pressing the end of the movable card 5, the front buckle position 502 is quickly reset to the position of locking the front cover 2.

[0042] In a specific embodiment, further, the first receiver 605 is provided with two vertically arranged receiving ends, and each receiving end is arranged at a 45° angle with the plane of the beam splitter 604 .

[0043] In a specific embodiment, further, both ends of one side of the front cover 2 that is in contact with the shell 1 are provided with protruding fixing positions 201 for fixing the pipeline 4 to be tested, and an anti-slip strip 202 is provided between the protruding fixing positions 201 provided at the two ends.

[0044] In a specific embodiment, the housing 1 further fixes the photovoltaic module structure 6 by arranging a mounting groove 106, a groove edge positioning rib 107 and a fixing hole 108 structure on the inner side. The positioning rib 107 is mainly used to position the photovoltaic module structure 6. When the photovoltaic module structure 6 is located inside the positioning rib 107, the threaded hole on the photovoltaic module structure 6 is directly aligned with the fixing hole 108 for easy installation.

[0045] In a specific embodiment, further, a circuit board fixing column 109 is provided at the inner side plate edge connection of the shell 1, and a circuit board 7 is provided along the side of the optoelectronic module structure 6 away from the front cover 2, and the circuit board 7 is fixed on the end face of the circuit board fixing column 109.

[0046] In a specific embodiment, further, a water outlet hole 110 is provided on the bottom side plate of the housing 1 between the circuit board 7 and the rear cover 3, and if there is water inside the device, it can be discharged from the hole. A wire outlet hole 111 is provided on the bottom side plate of the housing 1 between the circuit board 7 and the optoelectronic module structure 6, which is used to lead the wiring harness of the circuit board 7 in the device to the corresponding socket of the hemodialysis machine.

[0047] In another specific embodiment, the photoelectric module structure 6 can be replaced by an ultrasonic detection structure 8, and the ultrasonic detection structure 8 is also provided with a through slot 801 that can accommodate the pipeline 4 to be tested, and ultrasonic probes 802 are arranged vertically and symmetrically with the pipeline 4 to be tested on both sides of the through slot 801. The ultrasonic probe 802 has the functions of transmitting, receiving and detecting ultrasonic signals, and the center of the ultrasonic probe 802 is arranged to be aligned with the axis of the pipeline 4 to be tested, so as to accurately test the relative blood volume of the pipeline 4 to be tested.

[0048] The above is an implementation method of the embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the embodiment of the present application. These improvements and modifications are also considered to be within the scope of protection of the present application.

Claims

1. A relative blood volume detection device, comprising a housing (1), a front cover (2), a rear cover (3) and a pipeline to be detected (4), characterized in that: The housing (1) is movably connected to the front cover (2) and the rear cover (3) respectively; and further comprises The movable card (5) is arranged on one side of the shell (1), and fixes the raised portion (203) at the front edge of the front cover (2) through the front snap-fit ​​position (502), so as to fit the front cover (2) to the surface of the shell (1); a placement channel (112) for the pipeline (4) to be tested is provided along the vertical direction of the center of the fitting surface of the shell (1); A photoelectric module structure (6) is arranged inside a housing (1), and a U-shaped through groove (603) capable of accommodating a pipeline (4) to be tested is arranged along the main body of the photoelectric module structure (6), the U-shaped through groove (603) being arranged corresponding to the channel (112), a first transmitter (601) and a second transmitter (602) being arranged on one side of the U-shaped through groove (603), and a second receiver (606) and a spectroscope (604) arranged at 45 degrees along the side of the groove are arranged on the other side, and a first receiver (605) is arranged along the back of the spectroscope (604).

2. The relative blood volume detection device according to claim 1, characterized in that: The housing (1) and the front cover (2) are rotatably connected via a rotating shaft (101), and a torsion spring (102) for providing opening force to the front cover (2) is provided at the rotating shaft (101).

3. The relative blood volume detection device according to claim 1, characterized in that: The housing (1) and the rear cover (3) are slidably connected via sliding grooves (103) provided on both sides of the bottom of the housing (1), and a slot (301) for mounting the detection device on a device support rod is provided on the outer side of the rear cover (3).

4. The relative blood volume detection device according to claim 1, characterized in that: The movable card (5) is connected to a latch seat (104) on one side of the housing (1) via a latch pin (501); a compression spring (503) is installed on the housing (1) at the bottom of the end of the movable card (5) via a compression spring fixing position (105); and the front end buckling position (502) can be pressed up or down by pressing the end of the movable card (5).

5. The relative blood volume detection device according to claim 1, characterized in that: The first receiver (605) is provided with two vertically arranged receiving ends, and each receiving end is arranged at a 45° angle to the plane of the beam splitter (604).

6. The relative blood volume detection device according to claim 1, characterized in that: Both ends of the front cover (2) on one side of the housing (1) are provided with raised fixing positions (201) for fixing the pipeline (4) to be tested, and an anti-slip strip (202) is provided between the raised fixing positions (201) provided at the two ends; and a plurality of U-shaped anti-slip pads are provided in the U-shaped through groove (603).

7. The relative blood volume detection device according to claim 1, characterized in that: The housing (1) fixes the photovoltaic module structural component (6) by arranging a mounting groove (106), a groove edge positioning rib (107) and a fixing hole (108) structure on the inner side.

8. The relative blood volume detection device according to claim 1, characterized in that: A circuit board fixing column (109) is provided at the inner plate edge connection of the housing (1), and a circuit board (7) is provided along the side of the photoelectric module structure (6) away from the front cover (2), and the circuit board (7) is fixed to the end face of the circuit board fixing column (109).

9. The relative blood volume detection device according to claim 8, characterized in that: A water outlet hole (110) is provided on the bottom side plate of the housing (1) between the circuit board (7) and the rear cover (3), and a wire outlet hole (111) is provided on the bottom side plate of the housing (1) between the circuit board (7) and the optoelectronic module structural component (6).

10. The relative blood volume detection device according to claim 1, characterized in that: The photoelectric module structure (6) can be replaced by an ultrasonic detection structure (8), and the ultrasonic detection structure (8) is also provided with a through groove (801) capable of accommodating the pipeline to be tested (4), and ultrasonic probes (802) are arranged vertically and symmetrically with the pipeline to be tested (4) on both sides of the through groove (801).

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