JP2018000296A - Pump assembly and medical equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To materialize miniaturization of a device and facilitation of assembly work of the device by reducing the number of components.SOLUTION: A pump assembly 100 is provided in which a pump holding part 121 holding a pump 101 for supply air and a piping part 122 connected to the pump 101 and forming an air flow channel are constituted as one body, and valves 103 and 105 for controlling air pressure within the flow channel in the piping part 122 are mounted to the side surface portions 122a and 122bB of the piping part 122.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a pump assembly and a medical device.

In medical devices such as Holter electrocardiographs and telemeters that measure biological information such as electrocardiograms, arterial oxygen saturation (SpO ₂ ), blood pressure, etc., NIBP (non-invasive) blood pressure measurement modules, etc. In order to control the pressure appropriately, mechanical parts such as pumps and valves and electrical parts such as pressure sensors are provided. Conventionally, the piping from the pump to the valve and the pressure sensor is configured by connecting a number of extendable tubes having different sizes (outer diameters) and lengths for each part.

JP 2012-000292 A

  In the conventional piping configuration, since the parts are connected to each other by a tube, a large number of tubes are required, and the air flow path becomes long, so that it is difficult to reduce the size of the apparatus. In addition, it is necessary to prepare a tube for each part, and when there are many kinds of parts, the assembling property of the tube is lowered, which causes air leakage and the like.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to realize a pump assembly and a medical device that reduce the number of parts, realize downsizing of the apparatus and facilitating assembly work, and hardly cause air leakage. That is.

  In order to solve the above-described problems and achieve the object, a pump assembly according to the present invention includes a pump holding unit that holds a pump unit that supplies air, and a pipe that is connected to the pump unit to form an air flow path. And a valve for controlling the pressure of air in the flow path of the pipe part is attached to the side part of the pipe part.

  Moreover, the medical device of this invention has the said pump assembly.

  ADVANTAGE OF THE INVENTION According to this invention, while reducing the number of parts and implement | achieving size reduction of an apparatus and the ease of an assembly operation, the pump assembly and medical device which are hard to generate | occur | produce an air leak are realizable.

It is the external appearance perspective view (a) and front view (b) of the portable biological information measuring device of embodiment which concerns on this invention. It is a disassembled perspective view of the portable biological information measuring device of this embodiment. It is a disassembled perspective view of the pump assembly of this embodiment. It is the top view (a) and AA sectional view (b) of the pump assembly of this embodiment.

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.

  <Description of Entire Device> First, the overall configuration of the portable biological information measuring device of this embodiment will be described with reference to FIG. 1 and FIG.

  Hereinafter, as a medical device of the present invention, an example in which the present invention is applied to a portable biological information measuring device capable of measuring biological information such as blood pressure while being worn on a subject will be described. The present invention can be applied to all medical devices having a pump (compressor) such as an oxygen concentrator.

The portable biological information measuring device 1 of this embodiment is a Holter electrocardiograph capable of measuring biological information such as an electrocardiogram, arterial blood oxygen saturation (SpO ₂ ), blood pressure, etc. over a long period of time while attached to a subject. (Hereinafter, measuring device). The measuring device 1 includes a first case portion 2a and a second case portion 2b that constitute the outer shape of the device. A display unit 3 and an operation unit 4 are provided on the front portion of the first case unit 2a. Further, an interface connector 5 for connecting a cuff, an electrode, and an SpO ₂ probe is provided on the side surface of the first case portion 2a. The second case portion 2b is provided with a battery housing portion 6 and the like. In addition, a control board 7 having a measurement module, a pump assembly 100 described later, and the like are accommodated in the first case portion 2a.

  The display unit 3 includes a display panel that displays measurement results, setting information, operation states, and the like. The operation unit 4 is a push button switch that accepts user operations such as a power / decision button, a measurement start button, and an event button. The user can perform various settings while selecting the setting items displayed on the display unit 3 by operating the operation unit 4.

On the control board 7, arithmetic processing circuits such as a CPU and a memory, electrical components such as a switch element and a pressure sensor, and a measurement module are mounted. Since measurement methods such as an electrocardiogram, arterial oxygen saturation (SpO ₂ ), blood pressure, etc. are known, detailed description is omitted. The CPU executes a measurement process, a recording process, and a display process of biological information based on an operation signal from the operation unit 4 in accordance with a procedure of various biological information measurement programs stored in the memory.

  <Description of Pump Assembly> Next, with reference to FIGS. 3 and 4, the configuration of the pump assembly 100 mounted on the measuring apparatus 1 of this embodiment will be described.

  The pump assembly 100 of this embodiment includes a pump unit 101, a pump holder 102, a first valve 103, a first valve holding unit 104, a second valve 105, a second valve holding unit 106, a connector holder 107, An air connector 108, a microphone connector 109, and a sensor tube 110 are provided. The pump holder 102 is made of elastic transparent silicone rubber, and has a rectangular pump mounting portion 121 that holds the pump unit 101 and piping connected to the intake port 101a and the exhaust port 101b of the pump unit 101. The part 122 is integrally formed. The pump mounting portion 121 has an opening 121a in which the pump unit 101 is mounted, and has an upper surface, a lower surface, and a side surface other than the side surface connected to the piping portion 122.

  The piping part 122 has an intake air flow path 124 connected to the intake port 101 a of the pump unit 101 via the filter 123, and an exhaust air flow path 125 connected to the exhaust port 101 b of the pump unit 101. The intake air passage 124 is integrally formed with a predetermined height on the upper surface of the end portion of the exhaust air passage 125. The exhaust air flow path 125 is formed to be longer in the air flow direction D than the intake air flow path 124, and the cross section orthogonal to the air flow direction D has a quadrangular shape. That is, the side surface portion other than the portion connected to the pump mounting portion 121 in the exhaust air flow path 125 is a flat surface. The intake air flow path has a circular cross section.

  And the 1st valve | bulb 103 and the 2nd valve | bulb 105 are each connected to two side part 122a, 122b adjacent among the four side parts in the piping part 122. FIG. The first valve 103 is held on one side surface 122 a of the piping part 122 by the first valve holding part 104, and the second valve 105 is held on the other side of the piping part 122 by the second valve holding part 106. It is held by the side part 122b. A plurality of communication holes 126 are formed in each of the side surfaces 122a and 122b, and the intake port 103a of the first valve 103 is provided via the intake port 104a and the exhaust port 104b provided in the first valve holding unit 104. The first valve 103 is fixed to the first valve holding portion 104 with screws 127 so that the exhaust port 103 b is connected to the communication hole 126. Similarly, the second valve 105 is configured such that the intake port 105a and the exhaust port 105b of the valve 105 are connected to the communication hole 126 via the intake port 106a and the exhaust port 106b provided in the second valve holding unit 106. Is fixed to the second valve holding portion 106 with screws 127. The exhaust ports 104b and 106b have exhaust groove portions extending in a direction orthogonal to the air flow direction D. The second valve 105 is provided as a backup for the first valve 103, and the first valve 103 is usually used. In addition, the side part of the piping part 122 does not need to be all planar, and at least a part to which the valve is attached may be planar. In addition to providing the first valve 103 and the second valve 105 on the two adjacent side surface portions 122a and 122b in the piping portion 122, the first valve 103 and the second valve 105 are arranged side by side in the air flow direction relative to one side surface portion. You may arrange | position to the side part (for example, an upper surface and a lower surface) to do.

  In addition to the intake port 106a and the exhaust port 106b, the second valve holding unit 106 is provided with a dummy port 106c, and a sensor port 106d that allows the piping unit 122 and the pressure sensor 7 to communicate with each other. 106 and the pressure sensor 7 are connected by the sensor tube 110, and the pressure sensor 7 and the piping part 122 are communicated inside. The first valve holding portion 104 has a bottom surface portion 104A provided with an intake port 104a and an exhaust port 104b, and a pair of wall portions 104B standing from opposite side edges of the bottom surface portion 104A. 103 is fixed to the wall 104B with screws 127. Similarly, the second valve holding portion 106 has a bottom surface portion 106A provided with an intake port 106a, an exhaust port 106b, and the like, and a pair of wall portions 106B rising from opposite side edges of the bottom surface portion 106A. The second valve 105 is fixed to the wall portion 106B with screws 127.

  In addition, each port 104a, 104b, 106a-106d of the 1st and 2nd valve | bulb holding | maintenance parts 104 and 106 is U-shaped along the air flow direction D in the edge part which faces the air flow path of the piping part 122. An opening shape portion is provided, and an end portion of each port is configured not to obstruct air flow in the piping portion 122. In addition, in this embodiment, although the shape part of each port showed the example comprised as a U-shaped notch, it is not restricted to this, It is a V-shaped notch and a hole, A notch and a hole A combination of these may be used. Moreover, the joint part for valve connection which protruded and provided in the outer surface of the conventional piping part was eliminated, and each port 104a, 104b of the 1st and 2nd valve holding parts 104 and 106 like this embodiment, By adopting a structure in which 106a to 106d enter the air flow path of the pipe part 122, the outer shape of the pipe part 122 can be reduced.

  In addition, an air connector 108 is connected to an end portion of the piping portion 122 opposite to the pump unit 101.

  And the operation | work attached to the inside of the 2nd case part 2a becomes very easy by assembling the pump assembly 100 which has the structure mentioned above previously.

  Further, the first and second valves 103 and 105 are attached to the planar side surface portions 122a and 122b of the piping portion 122 in surface contact via the first and second valve holding portions 104 and 106. Since the ports 104a, 104b, 106a to 106d of the first and second valve holding portions 104, 106 are press-fitted into the communication holes 126 of the side portions 122a, 122b of the piping portion 122, the side portions of the piping portion 122 Compared with a curved surface, the sealing performance is improved and air leakage can be reduced. In addition, the external shape of the exhaust air flow path 125 of the piping part 122 does not need to be a square, and may be an arbitrary polygonal shape. That is, the first and second valves 103 and 105 may be configured to be attached to the side surface portion of the piping portion 122 through the first and second valve holding portions 104 and 106 in a surface contact state. In addition, since the pump holder 102 is made of a transparent material, dust mixed in the piping part 122 can be easily visually confirmed.

  Furthermore, since the upper surface 121b and the lower surface 121c of the pump mounting portion 121 in the pump holder 102 are sandwiched vertically within the first and second case portions 2a and 2b, the elastic pump holder 102 is pumped. It becomes a structure which absorbs the vibration of the unit 101 and suppresses the vibration of the case portion.

  According to the above-described embodiment, it is possible to reduce the number of parts, to realize the downsizing of the apparatus and the ease of assembling work, and to realize the pump assembly of the portable biological information measuring apparatus that hardly causes air leakage. .

DESCRIPTION OF SYMBOLS 1 ... Portable biological information measuring device, 2a ... 1st case part, 2b ... 2nd case part, 3 ... Operation part, 4 ... Display part, 7 ... Control board, 100 ... Pump assembly, 101 ... Pump, DESCRIPTION OF SYMBOLS 103 ... 1st valve, 104 ... 1st valve holding part, 105 ... 2nd valve, 106 ... 2nd valve holding part, 121 ... Valve mounting part, 122 ... Piping part

Claims (10)

  A pump holding part that holds a pump part that supplies air and a pipe part that is connected to the pump part to form an air flow path are integrally configured, and the side part of the pipe part includes the pipe part. A pump assembly characterized in that a valve for controlling the pressure of air in the flow path is attached. The valve includes a first valve and a second valve,
The pump assembly according to claim 1, wherein the first valve and the second valve are attached to adjacent side portions of the pipe portion. The first valve is attached to a side surface portion of the piping portion by a first valve holding portion,
The pump assembly according to claim 2, wherein the second valve is attached to a side surface portion of the piping portion by a second valve holding portion.   The said 1st valve | bulb holding | maintenance part and a said 2nd valve | bulb holding | maintenance part have a port which connects the flow path of the said 1st valve | bulb and the said 2nd valve | bulb, and the said piping part, The 3rd aspect is characterized by the above-mentioned. A pump assembly according to claim 1. The side part of the piping part has a flat part,
The pump assembly according to claim 4, wherein the port is press-fitted into a communication hole formed in a planar portion of a side surface portion of the piping portion.   A shape part that opens in the air flow direction is provided at an end of the port facing the flow path of the pipe part in the ports of the first valve holding part and the second valve holding part. 6. A pump assembly according to claim 4 or 5, wherein:   The pump assembly according to any one of claims 4 to 6, wherein the port of the second valve holding portion includes a port that communicates a flow path of the piping portion and a pressure sensor. An intake port and an exhaust port of the pump unit are connected to one end of the piping unit,
The pump assembly according to any one of claims 1 to 7, wherein a cuff connector is connected to the other end portion of the piping portion.   The pump assembly according to any one of claims 1 to 8, wherein the pump holding part and the pipe part are made of an elastic material.   A medical device comprising the pump assembly according to any one of claims 1 to 9.

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