JP6230886B2 - Balloon for blood pressure monitor - Google Patents

Description

  The present invention relates to a blood pressure balloon for use in a manual blood pressure monitor.

  As a sphygmomanometer, there is a manual sphygmomanometer that pressurizes an air bag in a cuff for a sphygmomanometer by manually operating an air balloon and measures blood pressure by blocking air with the air bag. An air balloon used for this type of blood pressure monitor is a hollow rubber ball that opens at both ends, as shown in Patent Document 1, for example, and an exhaust valve is provided at the opening on the side connected to the blood pressure monitor body, and the other A check valve is provided at the opening. By repeatedly expanding and contracting the rubber ball, compressed air is supplied to the cuff.

JP 2007-117373 A

  Specifically, the pressurizing operation of the sphygmomanometer is performed by holding the air balloon with one hand, pressing the air balloon with a palm (particularly the base of the thumb) and a finger other than the thumb, and repeatedly expanding and contracting. However, the conventional air balloon like Patent Document 1 is soft because the whole is made of rubber, and the compression force from the hand escapes and the number of pressurization times increases, and as a more serious problem In order to suppress the repulsive force from the air balloon, there is a problem that force is applied to the base of the thumb, resulting in hand fatigue.

  The present invention has been made in order to solve the problems of the prior art, and it is intended to provide an air balloon for a sphygmomanometer that can increase the efficiency of pressurizing operation (pressing operation) and reduce hand fatigue. Objective.

  In order to achieve the above-described object, the air pressure balloon for a sphygmomanometer according to the present invention is used as a pressurizing means of a sphygmomanometer, and is provided with a stretchable soft part that is expanded and contracted by a manual pressing operation and is supplied. In the air balloon, a part of the air balloon is formed by a hard portion that is hard with respect to the soft portion.

  Preferably, the hard portion is provided in a portion that comes into contact with a palm when the air balloon is gripped.

  Preferably, the hard portion is provided in a portion that comes into contact with the base of the thumb when the air balloon is gripped.

  Preferably, the air balloon includes an opening for mounting a check valve at one end, and the opening for mounting the check valve is formed by the hard portion.

  Preferably, the air balloon includes an opening for mounting a check valve at one end, and an opening for connecting to the blood pressure monitor main body at the other end, the body connecting opening. Is formed by the hard portion.

  Preferably, the hard part is provided as a hard part by changing a material with respect to the soft part that can be expanded and contracted.

  Preferably, the hard part is made of the same material as the stretchable soft part, and is provided as a hard part by increasing the thickness of the soft part.

  According to the present invention, in a hollow air balloon having a soft part that expands and contracts by a manual pressing operation for pressurizing an air bag provided in a sphygmomanometer, a part of the air balloon is formed to be hard. The balloon has a soft part that expands and contracts and a hard part that does not easily expand and contract. Since the hard part functions as a fulcrum when the soft part of the air balloon is crushed, the pressing operability is improved.

  Furthermore, a pressing operation can be performed safely by forming a part of the air balloon into a hard shape. It is conceivable to adopt a configuration in which a repulsive force from the air balloon is provided and a hard member different from the air balloon is provided, but this will inevitably occur between this another member and the air balloon. There is a risk of pinching meat or nails of the hand in the gap. On the other hand, if a part of the air balloon is made hard, such a situation can be avoided because the hard part and the soft part are one member.

  In particular, at the time of pressing operation, when the air balloon is gripped, the part that comes into contact with the palm is hard, more preferably, when the air balloon is gripped, the part that comes into contact with the base of the thumb is hard, The repulsive force when the air balloon is inflated is effectively borne by this hard part, and hand fatigue is reliably reduced.

  In addition, by forming the portion of the air supply bulb to which the check valve is attached to be rigid, it is possible to provide a strong retaining structure with respect to the removal direction during pressurization. Further, by forming the portion connected to the sphygmomanometer body to be rigid, it is possible to provide a strong retaining structure with respect to the disconnecting direction during pressurization. In other words, when a hard part is not provided at the opening (part fixing location) of the air balloon, the air balloon and the check valve, and the stopper between the air balloon and the sphygmomanometer body (the connecting member) are used for the elasticity of the air balloon. Since there is a dimensional error, there is a problem that it is disengaged. Therefore, if the opening part (part fixing part) of the air balloon is formed hard and a screw structure is formed in this hard part, fixing means for screwing the check valve and the sphygmomanometer body to the air balloon can be taken. And a stronger fixing structure can be obtained.

  The hard part may be configured by changing the material of the soft part. Alternatively, the same material as that of the soft part may be used to increase the thickness of the hard part side. In the case of two kinds of materials, it is preferable to form by integral molding. As an assumed molding method, blow molding or the like is preferable when the molding method is formed of one material. In the case of using two kinds of materials, DSI (die slide injection) molding, insert molding and blow molding of a hard part, etc. are suitable. Both can be manufactured at a relatively low cost.

1 is an overall configuration diagram of a blood pressure measurement device to which an air balloon according to the present invention is applied. The side view of the air balloon which concerns on 1st Example of this invention 1 is an exploded perspective view of an air balloon according to a first embodiment of the present invention. Sectional drawing of the air balloon which concerns on 1st Example of this invention Side view of the air balloon according to the second embodiment of the present invention Side view of an air balloon according to a third embodiment of the present invention Sectional drawing of the air balloon which concerns on 3rd Example of this invention Side view of the air balloon according to the fourth embodiment of the present invention Side view of an air balloon according to a fifth embodiment of the present invention Sectional drawing of the air balloon which concerns on 5th Example of this invention Sectional drawing of the air balloon which concerns on 6th Example of this invention

(overall structure)
FIG. 1 is an overall configuration diagram of a blood pressure measurement device to which an air balloon according to the present invention is applied. The configuration of the blood pressure measurement device 1 shown in the figure is common to all the embodiments described below, and mainly includes the cuff 2, the control unit 3, the air balloon 4, the cuff 2 and the control unit 3, and the control. An air hose 5 that connects between the part 3 and the air balloon 4 and an exhaust valve 6 that is interposed between the air balloon 4 and the air hose 5 are provided.

  At the time of measurement, the cuff 2 is wrapped around the part to be measured, the control unit 3 is activated, and the air balloon 4 is manually expanded and contracted according to the instructions of the control unit 3 so that the compressed air is compressed into the air in the cuff 2. Air is supplied to the bag 22 (not shown), the air bag 22 is inflated, and the portion to be measured is blocked. On the other hand, when the exhaust valve 6 is loosened, the exhaust valve 6 is gradually exhausted, and the ischemic state is released.

  A pressure sensor 24 (not shown) is installed in the cuff 2, and a cuff pressure signal and a biological pulse wave signal are detected by the pressure sensor 24.

  The control unit 3 includes a start / end switch 31, a display unit 32, a CPU 34 (not shown), a memory (RAM or ROM, not shown) 36, and an A / D converter 38 (not shown). The detection signal is A / D converted and then input to the CPU 34, converted into a blood pressure value and a pulse rate, and displayed on the display unit 32. Further, when the control unit 3 determines that an instruction for pressurization / exhaust operation or an appropriate operation is not performed according to the detected pressure value, a warning to that effect is given via the display unit 32. Do.

  The air supply ball 4 is a pressurizing means for supplying air to the air bag 22 in the cuff 2 and is a hollow ellipsoid having a portion that can be expanded and contracted by a manual pressing operation, and has openings at both ends. . The opening at one end is a check valve mounting opening 47 to which the check valve 7 is mounted and fixed, and when the air supply bulb 4 is compressed, the steel ball inserted into the check valve 7 is outside. When the air flow is stopped and the inflow of air is stopped and the pressure of the air balloon 4 is released, the steel ball moves inward and intake is performed. The opening at the other end is a main body connection opening 46 to which the exhaust valve 6 serving as a connection member with the control unit 3 is attached and fixed, and the insertion portion 62 of the exhaust valve 6 is inserted.

  Next, a preferred embodiment of the air balloon 4 according to the present invention will be described along examples.

  2 is a side view of the air balloon according to the first embodiment, FIG. 3 is an exploded perspective view of the air balloon, and FIG. 4 is a cross-sectional view of the air balloon (cross-sectional view taken along line IV-IV in FIG. 3). is there.

  When the air supply balloon 4 is pressurized, a measurer holds the air supply balloon 4 with one hand, presses the air supply balloon with a palm (particularly the base of the thumb) and a finger other than the thumb, and repeatedly expands and contracts. That is, the palm must suppress the repulsive force when the air balloon 4 is inflated so that the compressive force from the finger does not escape.

  On the other hand, the air balloon 4 of the first embodiment has a soft part 42 (FIG. 2) that can be expanded and contracted by a manual pressing operation on one side when the air balloon 4 is divided into approximately equal parts in parallel with the longitudinal direction. 4 (see the lower part of FIG. 4), and the other side is configured by a hard part 44 (see the upper part of FIGS. 2 to 4) that is difficult to expand and contract by hand pressing. The hard portion 44 is indicated by hatching in all the drawings.

  The soft part 42 should just be a material which expands-contracts by the press operation by hand, for example, a soft rubber material is preferable. The hard part 44 should just be a material which is hard to expand-contract also by pressing operation, for example, a hard rubber material and resin are preferable. The air balloon 4 including the soft portion 42 and the hard portion 44 may be formed by an adhesive method in which the joint between the soft portion 42 and the hard portion 44 can be kept in a close contact state even by a pressing operation, but is formed by integral molding. It is preferable. For example, it is preferable to integrally mold the two members using DSI (die slide injection) molding, PVC (polyvinyl chloride resin) or the like for the soft portion 42, and acrylic resin or the like for the hard portion 44. More preferably, it is preferable to insert a hard resin plate to be the hard portion 44 into the mold and then blow-mold it to integrally mold the two members.

  According to the present embodiment, when the air supply ball 4 is pressed, half of the side that comes into contact with the palm is formed by the hard portion 44, so that when the soft portion 42 of the air supply ball 4 is crushed, It functions as a fulcrum, facilitates the pressing operation, and improves the operation efficiency. Further, since it is not necessary to apply force to the base of the thumb in order to suppress the repulsive force from the air balloon 4, hand fatigue is reduced.

  FIG. 5 is a side view of an air balloon according to the second embodiment of the present invention. In addition, the broken line in FIG. 5 is a hidden line showing the internal structure of the air balloon 4 instead of showing a cross-sectional view. The air balloon 4 of the second embodiment is formed in a limited manner by changing the region of the hard portion 44 of the first embodiment. Of the hard portion 44 of the first embodiment, the main body connection side opening 46 and the check valve mounting opening 47 are soft portions 42, and the remaining area (check valve mounting side) is formed in the hard portion 44. ing. In other words, out of the bulb portion of the air supply bulb 4, the hard portion 44 extends from the end portion on the check valve mounting opening 47 side to the substantially central portion in the longitudinal direction, and substantially half in the circumferential direction. Is formed by the soft portion 42. The air balloon 4 of this embodiment is also preferably integrally formed by insert molding and blow molding of the hard portion 44.

  According to the present embodiment, when the air balloon 4 is gripped during the pressing operation, the portion that comes into contact with the base of the thumb where the most force is applied is formed by the hard portion 44 at a pinpoint more than in the first embodiment. Therefore, the same effects as those of the first embodiment can be obtained, and the area of the soft portion 42 is wide, so that the pressing operability is also good. The portion that contacts the base of the thumb when the air balloon 4 is gripped is mainly the formation position of the hard portion 44 in the present embodiment, and the longitudinal direction of the spherical portion of the air balloon 4 is reversed. From the end portion on the stop valve mounting opening 47 side to the substantially central portion, it may be a part in the circumferential direction and may be half or less.

  FIG. 6 is a side view of an air balloon according to a third embodiment of the present invention, and FIG. 7 is a cross-sectional view of the air balloon. In the air balloon 4 of the third embodiment, the entire periphery of the check valve mounting opening 47 and the entire periphery of the main body connection opening 46 are formed by the hard portion 44, and the other is formed by the soft portion 42. ing. Further, an internal thread 47a is formed on the inner periphery of the check valve mounting opening 47, and an internal thread 46a is formed on the inner periphery of the main body connection opening 46 (see FIG. 7). In the air supply bulb 4 of this embodiment, the soft portion 42 and the hard portion 44, the female screw portion 47a of the hard portion 44, and the female screw portion 46a of the soft portion 42 are preferably formed by integral molding.

  According to the present embodiment, since the internal thread portions 46a and 47a are formed by the hard portion 44, the check valve 7 is provided with the external thread portion 7a, and the exhaust valve insertion portion 62 is provided with the external thread portion 62a. The valve 7 and the exhaust valve 6 can be screwed and fixed to the air balloon 4. Thereby, it is possible to fix the check valve 7 and the exhaust valve 6 more firmly with respect to the removal direction during the air pressurization than a retaining structure that relies on the elasticity of the soft part 42 of the air supply bulb 4. it can.

  FIG. 8 is a side view of an air balloon according to the fourth embodiment of the present invention. In addition, the broken line in FIG. 8 is a hidden line showing the internal structure of the air balloon 4 instead of showing a cross-sectional view. In the air balloon 4 of the fourth embodiment, the region of the hard portion 44 of the second embodiment is more limited. In other words, of the bulb portion of the air supply bulb 4, the rigid portion 44 is partially formed in the circumferential direction from the end portion on the check valve mounting opening 47 side to the substantially central portion in the longitudinal direction. In addition, as in the third embodiment, the entire circumference of the check valve mounting opening 47 and the whole circumference of the main body connection opening 46 are formed by the hard portion 44, and the other areas are formed by the soft portion 42. It is formed with. In the third embodiment, the inner peripheral side of the openings 46 and 47 is a nut-shaped structure, whereas in the present embodiment, the outer periphery of the check valve mounting opening 47 is formed on the outer periphery. The male screw portion 47 b has a configuration of an external screw in which a male screw 46 b is formed on the outer periphery of the main body connection opening 46.

  Also in this embodiment, since the portion that contacts the base of the thumb is formed by the hard portion 44, the same effect as in the first and second embodiments can be obtained. Moreover, since the screw structure by the hard part 44 is formed in the opening parts 46 and 47, the internal thread part 7b (not shown) in the check valve 7 and the internal thread part 62b (not shown) in the exhaust valve insertion part 62 are formed. If this is provided, the same effect as in the third embodiment can be obtained. Furthermore, since the structure of the external screw is adopted, it can be formed by insert molding and blow molding of the hard portion 44, so that it can be manufactured easily and inexpensively, which is very suitable.

  FIG. 9 is a side view of an air balloon according to a fifth embodiment of the present invention, and FIG. 10 is a cross-sectional view of the air balloon. In the air supply bulb 4 of the fifth embodiment, the entire circumference of the check valve mounting opening 47 and the entire circumference in the vicinity of the check valve mounting opening 47 are formed by the hard portion 44, and the other is the soft portion 42. It is formed with. Further, as in the third embodiment, an internal thread 47a is formed on the inner periphery of the check valve mounting opening 47 formed by the hard portion 44 (see FIG. 10). In the air balloon 4 of this embodiment, the air balloon 4 is preferably integrally formed with the soft portion 42, the hard portion 44, and the female thread portion 47a of the hard portion 44.

  According to the present embodiment, the portion that contacts the base of the thumb when the air balloon 4 is gripped at the time of the pressing operation is formed by the hard portion 44, so the same effect as in the first and second embodiments. Is obtained. In addition, since the internal thread portion 47a is formed by the hard portion 44, the check valve 7 can be more firmly fixed as in the third embodiment. In addition, it is also suitable that this embodiment has an external screw configuration as in the fourth embodiment.

  FIG. 11 is a cross-sectional view of an air balloon according to the sixth embodiment of the present invention. The formation positions of the soft part 42 and the hard part 44 of the air balloon 4 of this embodiment are the same as those of the first embodiment. However, in the first to fifth embodiments, the soft part 42 and the hard part 44 are formed by changing the material used for each part, but in this example, the hard part 44 is the same as the soft part 42. It is formed by using a material to increase the thickness of the soft portion 42. In addition, the material thickness of the hard part 44 of the present embodiment may be determined so as to obtain a hardness that is difficult to expand and contract according to the material adopted for the soft part 42, and is not limited to the illustrated thickness. Absent.

  According to the present embodiment, the same effects as those of the first embodiment can be obtained, and the soft portion 42 and the hard portion 44 can be formed of the same material, so that it is manufactured at a low cost by, for example, blow molding or the like. be able to.

  As mentioned above, although the 1st-6th Example was mentioned as a suitable example which forms a part of air balloon 4 with the hard part 44, the formation position of the hard part 44 is arbitrary in the 1st-6th Example. You can combine them.

DESCRIPTION OF SYMBOLS 1 ... Blood pressure monitor apparatus, 2 ... Cuff, 3 ... Control part, 4 ... Air supply balloon, 5 ... Air hose, 6 ... Exhaust valve, 7 ... Check valve, 22 ... Air bag, 24 ... Pressure sensor, 31 ... Start / end Switch, 32 ... Display, 34 ... CPU, 36 ... Memory, 38 ... A / D converter, 46 ... Main body connection opening, 47 ... Check valve mounting opening

Claims (5)

In a hollow air balloon equipped with a stretchable soft part that is used as a pressurizing means of a sphygmomanometer and is expanded and contracted by a manual pressing operation,
Some of the feed balloon, and formed of a hard rigid portion to the soft portion,
The hard portion is provided in a portion that comes into contact with a palm when the air balloon is gripped, and is provided as a hard material by changing a material with respect to a soft portion that can be expanded and contracted, and is integrally formed with the soft portion. Air balloon for blood pressure monitor.
  The said air supply ball | bowl was comprised by the said soft part on the one side and the hard part on the other side, when it was divided into two substantially parallel in the longitudinal direction of the said air supply ball | bulb, The other side is characterized by the above-mentioned. Air balloon for blood pressure monitor.
In a hollow air balloon equipped with a stretchable soft part that is used as a pressurizing means of a sphygmomanometer and is expanded and contracted by a manual pressing operation,
  A part of the air balloon is formed with a hard part that is hard with respect to the soft part,
  The hard part is provided in a part that comes into contact with the base of the thumb when the air balloon is gripped, and is provided as a hard part by changing the material for the elastic part that can be expanded and contracted, and is integrally formed with the soft part. Balloon for blood pressure monitor.
In the longitudinal direction of the air balloon, the air balloon is from the end opposite to the side connected to the sphygmomanometer to a substantially central part, and substantially half in the circumferential direction, and the other area is a soft part. The blood pressure balloon for blood pressure monitor according to claim 3, wherein
The sphygmomanometer balloon according to any one of claims 1 to 4, wherein the integral molding is die slide injection molding.

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