JP2016158898A - Blood pressure and pulse wave measuring apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a piping connection structure of a blood pressure and pulse wave measuring apparatus which is made compact, facilitates connection work to a component, and can reduce errors during connection.SOLUTION: A blood pressure and pulse wave measuring apparatus comprises a body part for measuring blood pressure and pulse waves while controlling pressure of a cuff, and a piping branch mechanism 64 for distributing air to a plurality of portions of the body part. The piping branch mechanism 64 has a plurality of branch pipes 64b-64f having shapes corresponding to the sizes and positions of components 53, 65, 66 73 that are connected at the plurality of portions, respectively. Each of branch pipes 64b-64f can be directly connected to the corresponding component.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a blood pressure pulse wave measurement device, and more particularly to a pipe connection structure of a blood pressure pulse wave measurement device.

  The blood pressure pulse wave measuring device includes a number of mechanical parts such as a pump and a valve and electrical parts such as a pressure sensor in order to appropriately control the pressure of the cuff being measured. The conventional blood pressure pulse wave measuring device has a size (outer diameter) and length for each part such as a pump P, valves V1, V2, and sensors (not shown) with respect to the pipe branching mechanism 200 shown in FIG. A number of different tubes 201-205 are connected. As described above, the conventional blood pressure pulse wave measuring device requires a large number of tubes having different sizes and lengths in order to distribute air to each component.

JP 2012-292 A

  In the configuration in which the tube is connected for each component as described above, a space for arranging the tube is required for each component to be connected, and thus it is difficult to reduce the size of the apparatus. Also, it is necessary to prepare to cut the tube to the length of each part, or to prepare a tube that matches the size of each part. When there are many types of parts, the work of connecting the tube is complicated. Or problems such as connecting the tube incorrectly.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to realize a pipe connection structure of a blood pressure pulse wave measurement device that can reduce the size of the device, facilitate connection work with components, and reduce errors during connection. It is.

  In order to solve the above-described problems and achieve the object, a blood pressure pulse wave measurement device according to the present invention controls a cuff pressure to measure at least one of blood pressure and pulse wave, A pipe branching mechanism that distributes air to a plurality of parts, and the pipe branching mechanism has a plurality of branch pipes that are shaped according to the size and position of each component connected in each of the plurality of parts. Each of the branch pipes is configured to be directly connectable to a corresponding part.

  According to the present invention, the apparatus can be miniaturized, the connection work with the parts can be facilitated, and errors during the connection can be reduced, so that the work time can be greatly shortened. Moreover, since the volume of the pipe branching mechanism can be reduced, the influence of pressure fluctuation can be reduced and the measurement accuracy can be improved.

1 is an external perspective view of a blood pressure pulse wave measuring device according to an embodiment of the present invention. It is a disassembled perspective view of the blood pressure pulse wave measuring device of this embodiment. It is the top view (a), left view (b), and back view (c) of the blood pressure pulse wave measurement module of this embodiment. It is an external appearance perspective view of the piping branch mechanism of this embodiment. It is a figure explaining the conventional piping branch mechanism.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
The embodiment described below is an example as means for realizing the present invention, and the present invention can be applied to a modified or modified embodiment without departing from the spirit of the present invention.

  FIG. 1 is an external perspective view of a blood pressure pulse wave measuring device according to an embodiment of the present invention. FIG. 2 is an exploded perspective view (a) of the blood pressure pulse wave measuring device of the present embodiment, and an exploded view (b) of the blood pressure pulse wave measuring module excluding the control board. FIG. 3 is a plan view (a), a left side view (b), and a rear view (c) of the blood pressure pulse wave measurement module. FIG. 4 is an external perspective view of the pipe branching mechanism.

  As shown in FIG. 1, the blood pressure pulse wave measuring device 1 of the present embodiment includes a main body 2 and cuffs 3 a and 3 b connected to the main body 2. The cuffs 3 a and 3 b each have a pressurizing part 31 wound around the upper arm and ankle of the subject, and a hose part 32 connecting the pressurizing part 31 and the main body part 2. Two sets of cuffs 3a and 3b can be connected to the main body 2 via a connector 33, and at least one of blood pressure and pulse wave can be measured independently. That is, the main body 2 includes a control board 50 and a first blood pressure pulse of the first cuff 3a having an equivalent function arranged on the board 50 as a blood pressure pulse wave measurement module 100 described later in FIG. A wave measurement unit 30a and a second blood pressure pulse wave measurement unit 30b of the second cuff 3b are incorporated. By connecting a plurality of cuffs 3a and 3b to the main body 2 in such a manner that measurement is possible, blood pressure and pulse waves can be simultaneously measured at different parts of the same subject. Lower limb blood pressure ratio), PWV (pulse wave propagation velocity), PWT (pulse wave propagation time) and the like can be measured. For example, the pulse wave and / or blood pressure are measured at each site with the first cuff 3a attached to the upper arm and the second cuff 3b attached to the ankle. Further, by adding another blood pressure pulse wave measuring device 1, for example, blood pressure and pulse waves can be simultaneously measured at each part with the cuff being attached to the left and right upper arms and the left and right ankles. Moreover, even if one of the first and second blood pressure pulse wave measurement units 30a and 30b fails, the blood pressure and pulse wave can be measured using the other.

  The main body 2 includes a box-shaped first case (upper case) 21 and a second case (lower case) 22 that define the outer shape of the apparatus. A display unit 24 is provided. The operation unit 23 is a switch button or the like that receives an instruction to the apparatus or a user operation for setting, and the display unit 24 includes an LCD panel that displays measurement results, setting information, and the like, an LED lamp that displays an operation state, and the like.

  As shown in FIGS. 2 (a) and 2 (b), each of the first and second cases 21 and 22 has a concave shape portion 21a and 22a that form a space of a predetermined volume inside when both are assembled. And the blood pressure pulse wave measurement module 100 comprising the mechanical parts 61 to 73 constituting the control board 50 and the first and second blood pressure pulse wave measurement units 30a and 30b are accommodated in the concave portions 21a and 22a. . The first and second cases 21 and 22 are fixed with screws 25 or the like.

  CPU, memory, switch element 51, display panel 52, pressure sensor 53, and other electric circuits are mounted on control board 50. The mechanical parts 61 to 73 of the first and second blood pressure pulse wave measurement units 30 a and 30 b are assembled on the control board 50, and the concave shapes of the first case 21 and the second case 22 are formed as the blood pressure pulse wave measurement module 100. It is held by the parts 21a and 22a. The control unit 71 includes a CPU, a ROM, a RAM, an interface circuit, and the like. Since the blood pressure and pulse wave measurement methods are known, detailed description thereof will be omitted. The CPU inputs an operation signal from the operation unit 23 of the main body unit 2 according to the procedure of the blood pressure and pulse wave measurement program stored in the memory. Then, the CPU outputs a drive signal to an air pump 61, a flow rate control valve 65, and a quick exhaust valve 66, which will be described later, based on a detection signal from the pressure sensor 53. In addition, the CPU outputs a display signal to the LCD panel so that the measurement result is displayed on the display unit 24.

  The first and second blood pressure pulse wave measurement units 30a and 30b are a pressure sensor 53 that is an electrical component arranged on the control board 50 shown in FIG. 2A and a mechanical component shown in FIG. An air pump (motor) 61, a check valve (check valve) 62, a pump holder 63 that holds the air pump 61 and the check valve 62, a pipe branching mechanism 64, a flow control valve 65, a quick exhaust valve 66, and these valves 65 , 66, a cuff connector 68, and a cuff connector holder 69 for holding the cuff connector 68. The pump holder 63 and the valve holder 67 are fixed to the control board 50 with screws 26 or the like.

  The air pump 61 includes an intake port and an exhaust port arranged in the vertical direction, and a tube 71 is connected to each of them. In particular, the tube 71 connected to the intake port is connected to a check valve 62 via a pump holder 63. The cuff connector 68 is fixed to the cuff connector holder 69 by a nut 70. The intake port and the exhaust port of the air pump 61 are opposite in the vertical position for each blood pressure pulse wave measurement unit.

  The first and second blood pressure pulse wave measurement units 30a and 30b are configured so that the pump holder 63, the valve holder 67, and the cuff connector holder 69 are based on the center L in the width direction of the substrate 50 (see FIG. 3C). The pump holder 63, the valve holder 67, the cuff connector holder 69, and the control board 50 are used as common parts, and are laid out symmetrically on the control board 50 with the center L as a reference. In FIG. 2 (b), the second blood pressure pulse wave measurement unit 30b on the left side from the center L is in a state in which each component is disassembled, and the first blood pressure pulse wave measurement unit 30a on the right side is held in each holder. Indicates the state. In this way, the control board 50, the first blood pressure pulse wave measurement unit 30a, and the second blood pressure pulse wave measurement unit 30b are laid out symmetrically on the main body 2, thereby reducing the blood pressure pulse wave measurement module 100. it can. Furthermore, it is possible to easily add a blood pressure pulse wave measurement unit with the same layout.

  As shown in FIGS. 3 and 4, the pipe branching mechanism 64 has a symmetrical shape with respect to the center L, and is provided in each of the first and second blood pressure pulse wave measurement units 30 a and 30 b. The symmetrical pipe branching mechanisms 64 are arranged adjacent to each other with the center L as a reference. Each pipe branching mechanism 64 includes a pipe part 64a and a plurality of first branch pipes 64b to 64f branched from the pipe part 64a. The pipe portion 64a and the first branch pipe 64b to the fifth branch pipe 64f are integrally configured in a state where the inside communicates in a gas-tight manner. Each branch pipe 64b to 64f has a size (inner diameter and outer diameter of the opening) for each component to be connected (pressure sensor 53, flow control valve 65, quick exhaust valve 66, cuff connector 68 (air filter 73) described later). And it has a shape matched to the position (length and direction), and is configured to be directly connectable to the connection part of the corresponding part.

  The first branch pipe 64b extends from one end of the pipe part 64a so as to bend to the upstream side (air pump 61 side) with respect to the flow direction of the pressurized air, and the opening end part thereof is connected to the check valve 62. The second branch pipe 64c extends to the downstream side (cuff 3 side) with respect to the flow direction of the pressurized air, and the opening end thereof is connected to the flow control valve 65. The third branch pipe 64d extends to the downstream side (cuff 3 side) with respect to the flow direction of the pressurized air, and the opening end thereof is connected to the air filter 73. The air filter 73 is connected to the cuff connector 68 via the tube 72. Connected. The fourth branch pipe 64e extends to the downstream side (cuff 3 side) with respect to the flow direction of the pressurized air, and the opening end thereof is connected to the quick exhaust valve 66. The fifth branch pipe 64f extends to the upper side (control board 50 side) orthogonal to the flow direction of the pressurized air, and the opening end thereof is connected to the pressure sensor 53 mounted on the control board 50.

  The pipe branching mechanism 64 of each of the first and second blood pressure pulse wave measurement units 30 a and 30 b is provided in the valve holder 67 with the opening end of the other end 64 g of the pipe part 64 a of each pipe branching mechanism 64. It is held while being closed by being inserted into a protrusion 67b formed on the plate-like holding portion 67a. The pipe branching mechanism 64 is made of a transparent elastic material such as silicon.

  As described above, in the pipe branching mechanism 64 of the present embodiment, the air fed from the air pump 61 is introduced from the first branch pipe 64b, passes through the pipe portion 64a, and passes from the second branch pipe 64c to the fifth branch pipe 64f. Branched and distributed to each part.

<Assembly Procedure> Next, an assembly procedure of the blood pressure pulse wave measuring apparatus 1 will be described.
(1) First, a pump holder 63 in which an air pump 61, a tube 71 and a check valve 62 are assembled in advance, a valve holder 67 in which a flow control valve 65 and a quick exhaust valve 66 are assembled in advance, and a cuff connector in which a cuff connector 68 is attached. The holder 69 is fixed on the control board 50 with screws 26.
(2) Next, the air filter 73 is connected to one end of the tube 72, and the other end of the tube 72 is connected to the cuff connector 68.
(3) Finally, each branch pipe 64b to 64f of the pipe branching mechanism 64 is directly connected to the connection part of the corresponding part, and the other end part 64g of the first pipe part 64a is inserted into the protrusion of the holding part 67a. .
In addition, you may perform the procedure of said (2) and (3) reversely.

  As described above, the blood pressure pulse wave measurement device 1 according to the present embodiment uses the compressed air generated by the air pump 61 as the components 53, 65, 66 of the first and second blood pressure pulse wave measurement units 30a, 30b. 68 (73) has a plurality of branch pipes 64b to 64f shaped to match the size and position of each connected component, and each branch pipe 64b to 64f is a corresponding part. It is configured to be directly connectable. As a result, the number of components such as tubes can be reduced as compared with the conventional configuration (the five tubes in FIG. 5 are reduced to two), and a space for arranging the tubes for each connected component is not necessary. Therefore, the apparatus can be miniaturized. In addition, the work of cutting the tube according to each part and the work of connecting the cut tube are not required, and the branch pipes 64b to 64f can be connected to the corresponding parts without fail, thereby greatly reducing the work time. Can be shortened. In addition, since the volume of the flow path of the pipe branching mechanism 64 can be reduced, the influence of pressure fluctuation can be reduced and the measurement accuracy can be improved.

  Further, the pipe branching mechanism 64 itself has the other end part 64g connected to the holding part 67a, and the branch pipes 64b to 64f are connected to the respective parts to maintain the mounting strength. Furthermore, since the pipe branching mechanism 64 is made of an elastic material, the positional deviation is absorbed and the assembling work is facilitated. Furthermore, since the pipe branching mechanism 64 is a transparent member, the connection state of the branch pipes 64b to 64f can be confirmed, and it can be easily confirmed whether dust or the like is mixed in the pipe.

  In the present embodiment, the pipe branching mechanism 64 having the five branch pipes 64b to 64f is illustrated, but the present invention is not limited to this, and the number and position of the branch pipes can be appropriately changed according to the number of connected parts. . Further, as the present embodiment, a configuration in which the pressure sensor 53, the flow control valve 65, the quick exhaust valve 66, and the cuff connector 68 (air filter 73) are connected to the branch pipes 64b to 64f of the pipe branching mechanism 64 will be described. However, the present invention is not limited to this, and may be connected to at least one of a sensor, a pump, and a valve, or other parts.

DESCRIPTION OF SYMBOLS 1 ... Blood pressure pulse wave measuring device, 2 ... Main-body part, 3 ... Cuff, 21 ... 1st case, 22 ... 2nd case, 23 ... Operation part, 24 ... Display part, 50 ... Control board, 61 ... Air pump, 62 ... Check valve (check valve), 63 ... Pump holder, 64 ... Pipe branch mechanism, 65 ... Flow control valve, 66 ... Quick exhaust valve, 67 ... Valve holder, 68 ... Cuff connector, 69 ... Cuff connector holder

Claims (7)

A main body for controlling the pressure of the cuff to measure at least one of blood pressure and pulse wave;
A pipe branching mechanism for distributing air to a plurality of parts of the main body,
The pipe branching mechanism has a plurality of branch pipes having a shape according to the size and position of each component connected in each of the plurality of portions.
Each of the branch pipes is configured to be directly connectable to a corresponding part.   2. The blood pressure pulse wave measuring device according to claim 1, wherein the pipe branching mechanism includes a pipe part and the plurality of branch pipes that branch toward the position of each component connected from the pipe part. .   The blood pressure pulse wave measuring device according to claim 1 or 2, wherein the pipe branching mechanism is made of a transparent elastic material. The main body includes a substrate, a first measurement unit and a second measurement unit disposed on the substrate,
The pipe branching mechanism is provided in each of the first measurement unit and the second measurement unit,
4. The pipe branching mechanism provided in the first measurement unit and the pipe branching mechanism provided in the second measurement unit have symmetrical shapes. 2. The blood pressure pulse wave measuring device according to 1.   A holding unit that holds the end of the pipe branching mechanism provided in the first measurement unit and the end of the pipe branching mechanism provided in the second measurement unit in an adjacent state; The blood pressure pulse wave measuring device according to claim 4. The first and second measurement units include an electrical component and a mechanical component,
The electrical component includes a sensor mounted on the substrate,
The blood pressure pulse wave measuring device according to claim 4 or 5, wherein the mechanical part includes at least one of a pump and a valve.   The blood pressure pulse wave measuring device according to claim 6, wherein the valve includes a flow control valve, a quick exhaust valve, and a check valve.

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