JPH0397443A - Blood pressure measuring apparatus - Google Patents

Abstract

PURPOSE:To hold the overall length of feed and discharge pipe in an optimum condition so as to prevent a signal wire from hindering the manipulation of a blood pressure measuring apparatus, by using a composite pipe in which the feed and discharge pipe and the signal wire are integrally incorporated with each other, and by thermally processing the composite pipe in a spiral shape so as to allow it to be expandable and restorable. CONSTITUTION:A covering layer 6 made of polyvinyl chloride and wound around the outer periphery of a linear signal wire 4 is integrally incorporated with a polyvinyl chloride feed pipe 3 defining therein an air feed passage 5 by integral-molding, bonding, thermally fusing or the like. Thus obtained feed pipe assembly is continuously and linearly produced. Thereafter, a coil spring 7 made of spring material such as elastic resin or the like, which has been formed in a spiral shape, is inserted into the air feed passage 5. Accordingly, the feed pipe 3 in which the spiral coil spring 7 that is expandable and restorable is inserted, is obtained. Accordingly, the overall length of an air feed and discharge pipe can be held in an optimum condition while preventing the signal wire from hindering the operation of the blood pressure apparatus, and further, it is possible to store the air feed and discharge pipe in a small space.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a blood pressure measuring device, and more particularly to an electronic blood pressure measuring device equipped with a spiral composite tube.

[Prior Art] Various types of blood pressure measuring devices for commercial and home use equipped with cuffs have been proposed. To briefly describe the configuration of conventional blood pressure measurement devices, (a) Blood pressure detection means include a Korotkoff sound sensor, a photoelectric sensor (consisting of a far-infrared light emitting element and a light receiving element), and an ultrasonic sensor (piezoelectric ceramic sensor). etc. are placed at the location of the cuff that corresponds to the measurement site, while the air bladder inside the cuff is connected to the air supply means built into the main body of the device, and the constant speed exhaust valve has an appropriate overall length. are connected, and the signal wire (cable) connecting the main body of the device and the detection means should be fixed with tape or the like along the supply/exhaust pipe, or the signal wire should be covered with soft vinyl chloride. It was designed to be integrated with the air supply and exhaust pipes, which are also made of soft vinyl chloride.

(b) The blood pressure measuring device for commercial use has the above-mentioned air supply and exhaust pipe of approximately 3 m to facilitate use in the operating room.
In home blood pressure measuring devices, the supply and exhaust pipes have a fixed length of approximately 60 to 70 cm. Furthermore, (c) handling becomes troublesome especially when the total length of the supply/exhaust pipe is long, so a removable extension cable is connected in the middle or a dedicated winding device is provided.

(2) Usually, when a rubber tube or the like is made into a spiral shape to achieve elasticity and resilience, the hardness of the material is increased or the thickness of the rubber tube is increased.

[Problems to be Solved by the Invention] However, in the case of (a) in such conventional blood pressure measuring devices, as a result of the fact that the total length of the supply and exhaust pipe is fixed,
The total length of the supply and exhaust pipes may be too long and may get in the way.
On the other hand, there are problems in that the total length of the supply and exhaust pipes is sometimes too short, and that the signal lines get in the way.

In the case of (b) and (c), when storing the blood pressure measuring device, first fold the cuff into a small size and then wrap the air supply/exhaust tube around the folded cuff, or As a result of the pipe being folded back many times or stored in a loop shape, storage and storage work is troublesome, and especially for commercial use, the overall length of the supply and exhaust pipe is long, making it extremely troublesome. Additionally, increasing the wall thickness or rubber hardness of the supply and exhaust pipes increases rigidity, making them difficult to handle. Therefore, the present invention has been made in view of the above-mentioned various problems, and the object of the blood pressure measuring device of the invention set forth in claim 1 is to maintain the entire length of the supply and exhaust pipe in an optimum state during use. and the signal line does not get in the way.
Another object of the present invention is to provide a blood pressure measuring device in which an air supply and exhaust pipe can be easily accommodated in a small storage volume.

Another object of the invention is to provide a blood pressure measuring device that is made of a relatively soft material and has a light spiral air supply and exhaust pipe cable line.

Furthermore, the object of the invention of claim 3 is
An object of the present invention is to provide a blood pressure measuring device that allows the above-mentioned supply/exhaust pipe to be manufactured more easily.

[Means for Solving the Problems] In order to solve the above-mentioned problems and achieve the objectives, the blood pressure measuring device of the present invention has the following configuration. That is, the cuff includes a cuff provided with a detection means for blood pressure measurement, an air supply/exhaust pipe connected between the cuff and the main body for supplying and exhausting air, and a signal line connected between the detection means and the main body. In the blood pressure measuring device, the supply/exhaust pipe and the signal line are integrally arranged in parallel to form a composite pipe, which is thermally processed into a spiral shape so as to have elasticity and restorability.

Preferably, a spiral elastic wire is inserted through the composite tube to form a spiral shape so as to have stretchability and restorability.

Preferably, the elastic wire is formed of a shape memory alloy that maintains the spiral shape at the operating temperature and maintains a substantially straight shape at temperatures other than the operating temperature, thereby making it easier to form the composite tube. There is.

[Function] In the above structure, when blood pressure is measured, the supply/exhaust pipe stretches appropriately due to its elasticity, and while the cuff and the main body as well as the signal wire of the detection means and the main body are kept connected, the supply/exhaust pipe is accommodated in a snap. When stored, the resiliency of the air supply and exhaust pipes allows them to be stored in close contact with each other.

Further, by inserting a spiral elastic wire into the composite tube, the composite tube is formed into a spiral shape so as to have stretchability and restorability. Therefore, there is no need to provide elasticity to the material of the supply/exhaust pipe and the cable, and the pipe is made of a relatively soft material, is light, and has a thin spiral shape, making it easier to use. Particularly, handling of parts that are not formed in a spiral shape is improved.

In addition, by forming the elastic wire with a shape memory alloy that maintains the spiral shape at the operating temperature and maintains a substantially straight shape at temperatures other than the operating temperature (high temperature, low temperature), it is possible to form the elastic wire into a substantially straight line at temperatures other than the operating temperature. The elastic wire in this state is inserted into the composite tube and is formed into a spiral shape due to the physical properties of the shape memory alloy so that it has elasticity and restorability at the operating temperature.

[Example] An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a perspective view of the overall structure of a blood pressure measuring device according to an embodiment of the present invention. In this figure, the blood pressure measuring device is an electronic blood pressure monitor, and the device main body 1 is an electronic blood pressure monitor, and an electric bomb, a constant speed decompression device, a measurement electronic circuit, and a measurement value display device are included in the device main body 1. It is integrally constructed.

Further, a sensor 4 is disposed on the inner circumferential surface of the cuff 2 at a position corresponding to the measurement site. The cuff 2 has a built-in air bag 8 shown in broken lines. Between the air bag 8 and the main body 1 of the apparatus, an air supply pipe 3 is connected as shown in the figure, which is connected to the electric bomb and the constant speed decompression device, and performs air supply and constant speed exhaustion.

An air supply connector 3a is connected to the terminal end of the air supply pipe 3, and the cuff 2, to which the air supply pipe 3 is connected, can be attached to and detached from the apparatus main body l. The air pipe 3 provided in this manner is spirally curled as shown in the figure, and a signal that electrically connects the sensor 4 and the main body 1 of the device is placed along the air pipe 3. A line 4a is provided. The terminal end of the signal line 4a is connected to a female electrode provided in the air supply connector 3a, and the air supply connector 3a is inserted into the male electrode provided in the device main body 1. It is designed to automatically connect when it is attached or detached from the device.

Next, FIG. 2 is a partially cutaway enlarged perspective view of section A in FIG. is covered with a coating layer 6 made of vinyl chloride, and is integrally molded, glued, or heat-sealed to form an air passage 5 and an air pipe 3 also made of vinyl chloride. Continuously manufactured.

Thereafter, the outer peripheral surface of the rod having a built-in heater in a spiral shape as shown in the drawing is tightly rolled up to heat the heater of the rod to a predetermined temperature. Thereafter, it is cooled and extracted from the rod to obtain the air supply pipe 3 shown in the figure. That is, it is formed by heat processing into a spiral shape so as to have stretchability and restorability. As a result, the air pipes 3 are maintained in close contact with each other at a minimum pitch when no external force is applied to the air pipes 3 by pulling in the direction of the arrow. (In the figure, a slight external pulling force is applied, so they are not in close contact.) Next, Figure 3 is an external perspective view of the overall configuration of the electronic blood pressure monitor IO, with the cuff 2 and air tube 3 in the accommodated state. The figure shows how it is. In this figure, the device main body 1 is detachably attached to the cover main body 11, and can be used while being housed in the cover main body 1l as shown in the figure, but can also be used after being removed from the cover main body 1l. ing.

As shown in the figure, the upper part of the device main body 1 provided in this way has a part concave shape, and the externally shaped charger 13 that sneaks into this part allows the rechargeable battery (not shown) built into the device main body 1 to be charged. In addition to charging, when the rechargeable battery is insufficiently charged, it can be used by directly obtaining power from the charger 13.

A display section 15 such as a liquid crystal display for displaying blood pressure measurement values in a mosaic manner is provided on the top surface of the device main body 1, and a blood pressure measurement start switch 16 and stop switch 17 are also provided. In addition, an instruction manual 14 is attached to the inner surface of the cover lid part 12, which prints and displays how to use the device, precautions, etc., and when the cover lid part l2 shown in the figure is opened,
It can be operated according to this instruction manual 14.

Next, the cuff 2, which has a rectangular unfolded shape and which connects the air pipe 3 explained based on FIG. 2, has a width dimension of D. 14c of
m, which is approximately the same as the depth dimension of the top surface of the device main body 1, so that it can be stored after being rolled up as shown in the figure.

Furthermore, an air tube 3 is housed in a manner to be sandwiched between the cuff 2 and the main body 1 housed in this way, and the illustrated housing dimension D2 is about 10 cm. . Here, the air supply pipe 3 accommodated in this manner was made into a pipe having an outer diameter of 7 mm, and was formed into a spiral shape having an outer diameter of about 2.5 cm by heat processing by winding it around a rod having a built-in heater. In this case, if the width dimension D1 of the air tube 3 is set to 14 cm, which is the same as the width D1 of the cuff 2, when the air tube 3 is in a tight state, the width will be about 70 cm when it is stretched to the maximum. As a result, the illustrated electronic blood pressure monitor 10 can be made very small.

Next, FIG. 4 is a partially cutaway enlarged perspective view of a second embodiment of the air supply pipe 3, showing a portion corresponding to section A in FIG. 1. In this figure, the air pipe 3 is a straight signal line 4a.
whose outer periphery is coated with a vinyl chloride coating layer 6,
It is continuously manufactured by integrally molding, adhering, or heat-sealing the air pipe 3 made of vinyl chloride, which also forms a straight air flow path 5, into a straight shape.

Thereafter, a coil spring 7 made of an elastic resin material or a spring material and bent into a spiral shape is inserted into the air supply flow path 5, thereby obtaining the air supply pipe 3 as shown in the figure. That is, the air supply pipe 3 is obtained by inserting the coil spring 7, which has a spiral shape so as to have elasticity and restorability.

In addition, in order to make the air pipe 3 into the shape shown in FIG.
The coil spring 7 may be formed of a shape memory alloy. In this case, the coil spring 7 is kept in a spiral shape at the operating temperature, but is formed into a substantially straight line at high and low temperatures other than the operating temperature, so that the coil spring 7 is kept in a substantially linear state at temperatures other than the operating temperature. 7 is inserted into the air supply channel 5, returned to the operating temperature, and formed into a spiral shape so as to have elasticity and restorability, and is brought into the state shown in FIG.

As a result, the work of inserting the coil spring 7 into the air supply flow path 5 can be performed efficiently.

FIG. 5 is a diagram showing how the main body 1 of the apparatus is used for business purposes. As is clear from this figure, the device main body 1 is fixed to a wall surface 100 such as a waiting room of a clinic.
A hook 19 is fixed to the side surface of the cuff 2 for holding the rolled-up cuff 2 therethrough. The main body 1 of the device further includes a built-in printer 18 that records and outputs the measured blood pressure on paper, so that the patient can measure while waiting for medical treatment and bring the paper with him when he goes to see the doctor.

By doing so, efficient medical treatment can be performed in the same way as body temperature measurement.

Between the device main body 1 and the cuff 2, which are constructed in this way, is the air pipe 3 described based on FIGS. 2 and 4, which has a total length of about 1.5 m when pulled. It is connected.

During use, the person to be measured removes the cuff 2 from the hook 19, wraps the cuff 2 around his or her arm, and stretches the air tube 3 to an appropriate length within 1.5 m.

In the above description, the material for the air pipe 3 and the coating 6 is not limited to vinyl chloride, but may include rubber, polymer resin, and the like. Further: The air supply pipe 3 configured as described above is suitably used in a fluid device using pneumatic pressure, especially when a sensor signal line is also installed.

Furthermore, the number of air supply passages 5 of the air supply pipe 3 is not limited to one as described above, and, for example, in a blood pressure monitor equipped with a manual bomb, air supply passages dedicated to air supply and exhaust may be provided respectively.

[Effects of the Invention] As described above, according to the blood pressure measuring device of the present invention, the entire length of the supply/exhaust pipe can be maintained in an optimal state during use, and the signal line does not get in the way, and It is possible to provide a blood pressure measuring device that can easily accommodate an air supply and exhaust pipe in a small storage volume.

Further, according to the second aspect of the invention, it is possible to provide a blood pressure measuring device that is made of relatively soft material and has a thin wall, and has an air supply and exhaust pipe that is light and easy to handle.

Furthermore, according to the invention of claim 3, claim 2
It is possible to provide a blood pressure measuring device in which the above-mentioned air supply and exhaust pipe can be manufactured more easily.

[Brief explanation of drawings]

1 is an external perspective view of a blood pressure measuring device l according to an embodiment of the present invention, FIG. 2 is a partially cutaway enlarged perspective view of section A in FIG. 1, and FIG. 3 is an overall configuration of an electronic blood pressure monitor 10. FIG. 4 is a partially cutaway enlarged perspective view of the second embodiment of the air supply pipe 3, and FIG. 5 is a diagram showing the main body 1 of the apparatus in use for business purposes. 4...Sensor 4a...Signal line, 5...Air supply channel, 6...Coating, 7...Coil spring, 10...Electronic blood pressure monitor, 11...Cover body, 12...・Cover lid part, l3...Charger, 15...Display part, 18...
Printer, 19...hook. --,,-r. h1fl! , 7-t-1 Figure 1: Device body, 2: Cuff, 3: Air tube, Figure 3-2

Claims (3)

[Claims] (1) A cuff provided with a detection means for blood pressure measurement, an air supply/exhaust pipe connected between the cuff and the main body for supplying and exhausting air, and a signal line connected between the detection means and the main body. The blood pressure measuring device is characterized in that the supply/exhaust pipe and the signal line are integrally arranged side by side as a composite pipe, and are formed by heat processing into a spiral shape so as to have elasticity and restorability. Blood pressure measuring device. (2) Blood pressure measurement according to claim 1, characterized in that the composite tube is formed into a spiral shape so as to have stretchability and restorability by passing a spiral elastic wire through the composite tube. Device. (3) The blood pressure measuring device according to claim 2, wherein the composite tube is easily formed by forming the elastic wire with a shape memory alloy that maintains the spiral shape at the operating temperature. .