JPH05129A - Sphygmomanometer for finger - Google Patents

Abstract

PURPOSE:To enable accurate measurement of a blood pressure and the assembling of a finger pressure cuff and bag and a finger pressure cuff and bag winding/tightening adjusting part such as tightening belt in a different process other than that of assembling of the sphygmomanometer body by allowing the finger pressure cuff and bag to wind closely on the entire artery. CONSTITUTION:This apparatus is provided with a manometer 1 having a finger insertion hole 28 on the side thereof, a band-shaped finger pressure cuff and bag 25 which is arranged in a crescent along a surrounding wall of the finger insertion hole 28, a sliding knob 35 which is provided to move to the nometer body 1 to adjust the winding and tightening on a finger of the finger pressure cuff and bag 25 and a tightening belt 34 which is interposed between the sliding knob 35 and he finger pressure cuff and bag 25 to lead the winding of a finger of the finger pressure cuff and bag 25 by moving the sliding knob 35. The tightening belt 34 is arranged spiral by more than one and a half turn along external and internal walls of the cylinder 30 forming the finger insertion hole 28.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has a finger cuff arranged in a finger insertion hole of a sphygmomanometer main body, and an electronic blood pressure monitor for a finger (hereinafter referred to as "the electronic blood pressure monitor" for adjusting the tightening of the finger cuff around the finger before pressurization. It is abbreviated as "finger sphygmomanometer".).

[0002]

2. Description of the Related Art In recent years, a finger sphygmomanometer that is small and lightweight and easy to measure has been commercialized and has become a hot topic. This finger sphygmomanometer measures the blood pressure by inserting the index finger into the finger insertion hole of the sphygmomanometer main body.It is possible to measure blood pressure simply by inserting the finger, and the finger cuff is located on the side of the sphygmomanometer main body. It is arranged in the insertion hole and is characterized by being compact as a whole.

On the other hand, the finger sphygmomanometer adopts the oscillometric method because it is difficult to apply a microphone to a small artery. This type of finger cuff, like the cuff for the upper arm, is required to be properly wrapped around the finger, to prevent arterial ischemia due to pressurization, and to sequentially detect changes in cuff pressure. In particular, the finger has a plurality of arteries of similar thickness, and it is a problem that the finger must be tightly wrapped around all the arteries with a small finger cuff.

A conventional finger sphygmomanometer employs a so-called finger cuff adjusting mechanism for adjusting the wrapping force of the finger cuff around the finger before pressurization, as a means for solving such a problem. This finger cuff adjusting mechanism is provided with a slide knob 135 on the upper side of the sphygmomanometer main body 101 as shown in FIG. 15 in the device of Japanese Utility Model Laid-Open No. 3-2302, and the tightening belt is moved by moving the slide knob 135. Finger cuff 125 through 134
Is urged inward so that it wraps around the finger A.

On the other hand, the finger A wrapped around the finger cuff 125 has an elliptical cross section, and the softness is different between the upper side with the nail B and the lower side without the nail B. Also, the finger cuff 12
5 is a small band because it is arranged in the finger insertion hole 128, but it must be wrapped around a thick finger such as an adult male. Further, the positions of the arteries D1 and D2 differ depending on the insertion angle of the finger A into the finger insertion hole 128. Even under these conditions, the finger cuff 125 should be wrapped around the finger A without a gap. If this is not satisfied, for example, insufficient supply of air to the finger cuff 125 due to the wrinkles of the air bag 126 will result in poor ischemia to the finger A as it is, and the cuff pressure including the blood flow pressure will be detected from the beginning, resulting in an error in blood pressure measurement. This will cause measurement failure.

[0006]

In the above-mentioned conventional finger sphygmomanometer, the tightening belt 134 is arranged in a "-" shape along the peripheral wall of the insertion hole 128 as shown in FIG. Part of the upper side of the finger A is open. For this reason,
The wrapping force of the fastening belt 134 does not act on the air bag 126 on the artery D2 located at the mating portion of the air bag 126, which may lead to poor wrapping. Further, the tightening force of the tightening belt 134 is not uniform, and has a drawback that it becomes weaker as the distance from the slide knob 135 increases.

Further, in the finger sphygmomanometer, the finger cuff 125 and the tightening belt 134 must be arranged in the finger insertion hole 128 of the sphygmomanometer body 101, but in the finger insertion hole 128 having only an inner diameter of about 3 cm. However, it is troublesome to perform the arranging operation, and it has been a problem to perform the arranging operation during the assembling process of the sphygmomanometer main body 101. The present invention was made in order to solve the above-described problems of the blood pressure monitor for a finger, and the finger cuffs are closely wrapped around all the arteries having a plurality of fingers,
Another object of the present invention is to provide a finger sphygmomanometer that does not cause blood flow failure and that can connect and arrange finger cuffs and belts in a process different from the process of assembling the sphygmomanometer main body.

[0008]

Among the above-mentioned objects, claim 1 is proposed as the object solving means in the preceding stage. The finger sphygmomanometer according to claim 1 has a sphygmomanometer main body having a finger insertion hole on its side surface, a band-shaped finger cuff arranged in a crescent shape along a peripheral wall of the finger insertion hole, and a sphygmomanometer main body for moving to the sphygmomanometer main body. A slide knob that is provided to adjust the tightening of the finger cuff around the finger, and a tightening belt that is interposed between the slide knob and the finger cuff and that moves the slide knob to rewind the wrapping of the finger cuff. With and
The tightening belt is arranged in a spiral shape at least once and a half along the inner wall and the outer wall of the cylinder forming the finger insertion hole.

Of the objects of the present invention, claim 2 is proposed as the object solving means in the latter stage. The blood pressure form for fingers of claim 2 is
The finger insertion hole is formed by a cylinder frame on the side surface of the sphygmomanometer body and a cylinder for accommodating the finger cuff and the tightening belt, and the cylinder is formed as a cuff accommodating member for disposing the finger cuff and the tightening belt. The cuff housing member is integrally formed with a support frame that supports the slide knob and a slide plate that engages with the slide knob and clicks the slide plate.

[0010]

According to the present invention, the tightening belt is arranged in a spiral shape and wound at least once and a half times, and the tightening force of the tightening belt acts evenly on the entire surface of the finger cuff. The cuff is tightly wrapped around the finger regardless of the shape or position of the finger. Further, the tightening belts are arranged along the inner and outer walls of the cylinder without contacting each other, so that the movement of the slide knob is not hindered and the finger cuff can be tightened smoothly.

In the second aspect, not only the cuff accommodating member is formed separately from the sphygmomanometer main body forming the finger insertion hole, but also the cylinder for arranging the finger cuff and the tightening belt, the support frame for the slide knob, etc. It is molded integrally. Therefore, these finger cuff winding adjustment parts can be attached to the cuff housing member in advance, and the troublesome finger cuff or tightening belt can be assembled in a step different from the step of assembling the sphygmomanometer body. The process management and parts management become easy.

[0012]

Embodiments of the present invention will be described with reference to FIGS. FIG. 1 is a perspective view showing a use state of a blood pressure meter for an oval finger,
2 is a block diagram showing the internal structure of FIG. 1, FIG. 3 is a lateral cross-sectional view of the main part of FIG. 1, FIG. 4 is an exploded perspective view of FIG. 1, and FIGS. 5 is a perspective view of the slide knob and the slider, FIG. 6 is a perspective view of the winding belt and the slider, FIG. 7 is a perspective view of the slider to which the winding belt is connected, FIG. 8 is a perspective view of the slide knob and the slider, and FIG. FIG. 10 is a perspective view showing the configuration of the cuff housing member, FIG. 10 is a perspective view of the cuff housing member and the belt cover, and FIG. 11 is a perspective view of the cuff housing member.

12-14 show the operation of the tightening belt,
12 is a cross-sectional view showing a state in which a finger is inserted, FIG. 13 is a cross-sectional view showing a finger cuff in a wound state, and FIG. 14 is a cross-sectional view showing a compressed state of the finger cuff. The sphygmomanometer main body 1 shown in FIG. 1 is formed by fitting a dome-shaped upper case 2 and a lower case 3 together, and has a substantially oval outer shape. Therefore, the bottom surface 4 is easily placed on the palm of the hand, and the curved side surface 5 fits on the palm of the finger, making it easy to hold the sphygmomanometer body 1. This sphygmomanometer main body 1 adopts an oscillometric method, and its configuration is shown in FIG.

The lower case 3 is provided with a battery box 6 standing upright in the center of the inside, and corner frames 7 and 8 for positioning air system parts around the battery box 6.
And mounting rods 9 and 10 are provided. The corner mounting frames 7 and 8 have an L-shaped cross section according to the outer shape of the object to be placed, and the rear mounting frame 7 has a finger cuff 25 to be described later.
The electric pump 11 for feeding air to the front and the exhaust valve 12 for exhausting the air in the finger cuff 25 are fitted into the front mounting frame 8 to fix their positions.

The mounting rods 9 and 10 are provided on the left and right sides of the lower case 3 so as to face each other. The pressure sensor 13 is provided on the front mounting rod 10 and the printed wiring board 14 is provided on the rear mounting rod 9. Is screwed. For mounting these air system parts, first, the electric pump 11 and the exhaust valve 12 are arranged on the battery box 6, and then the pressure sensor 13 and the printed wiring board 14 are sequentially fixed thereon. This makes it possible to effectively use the installation process and the arrangement space. The electric pump 11 shown in FIG. 4 is wrapped with a cushion material 11A for absorbing vibration, and the pressure sensor 13 is of a capacitance type having high resolution.

The control circuit 15 shown in FIG. 2 controls the electric pump 11, the exhaust valve 12, and the pressure sensor 13 to detect ischemia, cuff pressure, and maximum and minimum blood pressure. This point is similar to the existing oscillometric blood pressure monitor, and detailed description thereof is omitted. Reference numeral 16 shown in FIG. 4 is a cylindrical air socket in which the interconnection of the above-mentioned air system components is interposed. The air socket 16 has three bosses 17A, 17B, 17C arranged in a vertical line on the side surface of the cylinder.
And a single boss 17D. Lower boss 1
The air tube 19A from the electric pump 11 is connected to 7A, the air tube 19B from the exhaust valve 12 is connected to the middle boss 12B, and the air tube 19C from the pressure sensor 13 is connected to the upper boss 17C. The base 27 of the finger cuff 25 is directly connected to the boss 17D. These air tubes 19A to 19C are arranged in the lower case 3 in alignment with the insertion connection, and the alignment work can be simplified.

At the lower end of the air socket 11, plates for standing legs 18 are provided on the left and right, and the legs 18, 18 are provided on the upper surface of the lower case 3 to hold the gripping claws 3.
A, 3A (see FIGS. 12 to 14). As a result, the air socket 11 is attached to the lower case 3 while standing upright, and the bosses 12A to 19C of the air tubes 19A to 19C are attached.
The insertion work to 12D becomes easy. The power switch 20 is provided on the upper surface of the printed wiring board 14 shown in FIG.
A, a pressure switch 20B, and a liquid crystal plate 21 are fixed, and the upper case 2 has push buttons 22 corresponding thereto.
A, 22B, a liquid crystal cover 23, and a mounting plate 24 are arranged.

The finger cuff 25 shown in FIGS. 4 and 9 to 14 is composed of an air bag 26 and a base 27, and is arranged in a crescent shape along the peripheral wall of the finger insertion hole 28. The finger insertion hole 29 is formed on the rear side surface of the lower case 3 so as to face the cylindrical frame 3B.
And a cylinder 30 which has the same diameter as the cylinder frame 3B and is inserted and arranged between the cylinder frames 3B and 3B.
However, it can be inserted from each side 5.

The cylinder 30 has the finger cuff 25 and the tightening belt 34 disposed on the inner wall 30A thereof, and the cuff accommodating member 29.
Form part of the. The cuff housing member 29 includes a support frame 29A having a U-shaped cross section for supporting a slide knob 36, which will be described later, a slide plate 32 having a rack 32A on its lower surface for clicking the slide knob 35, and a side plate 33, which are integrated with each other. Is molded into. Therefore, these cuff winding adjustment components can be attached to the cuff housing member 29 separately from the assembly process of the sphygmomanometer body 1.

On the outer wall 30B of the cylinder 30, a tightening belt 34 is continuous from the outer surface of the finger cuff 25 arranged on the inner wall 30A, and is arranged spirally. This tightening belt 34
Is for urging the tightening of the finger cuff 25 from the outside to the inside of the finger A. In the illustrated example, one winding is performed along the inner wall 30A and one winding is performed along the outer wall 30B. In short, it suffices that it is wound once along the inner wall 30A.

5 to 11 sequentially show the steps of assembling the cuff accommodating member 29, and FIG. 5 shows the slide knob 35 and the slider 36 for guiding the movement of the slide knob 35. Terminals 35D and 36D are provided respectively,
The terminals 35D and 36D detect the tightening force of the finger cuff 25 on the finger A due to the movement of the slide knob 35.

Normally, the two terminals 35D and 36D are in a non-contact state (see FIGS. 11 and 12), and the finger cuff 25 is configured to come into contact with the finger A when the finger A is excessively tightened. Through the command circuit (not shown) of the printed wiring board 14, the liquid crystal plate 21 indicates that the excessive tightening is performed. FIG. 6 shows the relationship between the tightening belt 34 and the slider 36.
When the insertion piece 34A provided at the tip of the tightening belt 34 is inserted into the hook 36A provided at the center of the slider 36, the insertion piece 34A is hooked on the hook 36A and the tip of the belt 34 is fixed to the slider 36. . FIG. 7 shows this fixed state.

FIG. 8 shows a slider knob 35 and a slider 3.
6 shows the relationship of No. 6, and the slider knob 35 is attached to the slider 36 by inserting the insertion rods 35A and 35A provided on the lower side of the slide knob 35 into the insertion holes 36B and 36B provided on the front side of the slider 36. It will be installed. The coil springs 37, 37 are the insertion rods 35A, 35
A penetrates through, and slide knob 35 is attached to slider 36.
Bias the rear wall and slide the slide knob 35 into the slider 36.
It is to be attached to.

The upper end of the leaf spring 38 fixed to the center of the upper side of the slider 36 is brought into contact with the rack 32A (see FIGS. 12 to 14) on the lower surface of the slide plate 32 and clicks the slider 36 and the slide knob 35. It is a thing. FIG. 9 shows the arrangement of the finger cuff 25 and the tightening belt 34,
The insertion of the slide knob 35 into the slide plate 32 is shown.

The tightening belt 34 is the outer wall 3 of the cylinder 30.
After winding 0B once, it is inserted into the inner wall 30A from the tip through the first opening 30C and wound along the inner wall 30A.
The slide knob 35 is pulled by the tightening belt 34 and moves rearward as the tightening belt 34 is wound around the cylinder 30. At this time, the arms 35B having a U-shaped cross section provided on the lower left and right sides of the slide knob 35 are aligned so as to hold the slide plate 32, and the convex portion 36C provided on the left side surface of the slider 36 is The side plate 3
The positioning is performed so that the supporting frame 29A is inserted into the supporting frame 29A of No. 3, and these are inserted at the same time. At the same time, the leaf spring 38 provided on the slider 36 comes into contact with the rack 32A of the slide plate 32 every other time, and clicks. This makes the slide pick 3
5 moves in the front-rear direction together with the slider 36 supported by the support frame 29A.

Positioning of the finger cuff 25 is performed in the following process, for example. First, the tightening belt 34 in the inner wall 30B
The mouthpiece 27 is put inward from the side surface in alignment with the cutout groove 34B of the cylinder, and then the cutout groove 34B is inserted into the second opening 30 of the cylinder 30.
Match with D. Next, the flange 27A of the base 27 is aligned with the receiving claw 29B of the cuff housing member 29 and is inserted from the side surface. As a result, the finger cuff 25 and the tightening belt 34 are
Is temporarily stopped by. Insert it in accordance with the notch groove 34B,
It is inserted into the boss 17D of the air socket 16. As a result, the finger cuff 25 and the air socket 16 are connected, and the finger cuff 25 is attached to the air socket 16 and the tightening belt 3
4 are temporarily fixed to the cylinder 30.

The cuff accommodating member 29 shown on the left side of FIG. 10 shows a state in which the finger cuff 25 and the tightening belt 34 are temporarily fixed. Figure 10
Shows a state before the belt cover 39 is attached to the cuff housing member 29. The belt cover 39 is to be screwed to the side surface of the cuff housing member 29, has a shielding portion 39A that shields the side surface of the tightening belt 34, and has a diameter larger than that of the cylinder 30, and the tightening belt 34 is arranged inside. A plurality of holding frames 39B, 3
9B, a support leg 39C provided on the lower holding frame 39B for preventing the cuff accommodating member 29 from rolling over, and a support frame 39D having a U-shaped cross section into which the convex portion 36C on the right side surface of the slider 36 is inserted. , The base 2 engaged with the receiving claw 29B
The pressing claw 39E that holds 7 together with the receiving claw 29B, the stopper 39F that regulates the forward and backward movement of the slide knob, and the like are integrally formed, and after they are aligned, they are screwed to the fixing rod 29C of the cuff housing member 29. It

As a result, the finger cuff 25 is attached to the cylinder 30 with the mouthpiece 27 sandwiched between the receiving claw 29B and the pressing claw 39E, and the belt 34 is attached to the cylinder 30 in a spirally wound state twice. Also, the slider 36 moves back and forth with the convex portions 36C on both side surfaces thereof being supported by the support frame 29A of the cuff housing member 29 and the support frame 39D of the belt cover 39.
The slide knob 35 is on the slider 36 and moves until it comes into contact with the stopper 39F of the belt cover 39. The finger insertion hole 28 is formed in the cylindrical frame 3 of the lower case 3.
The cylinder 30 of the cuff housing member 29 is formed by being inserted between B and 3B. Then, the mouthpiece 27 of the finger cuff is inserted into the boss 17D of the air socket 16, and the finger cuff 25 is connected to the air socket 16.

Next, the operation of the tightening belt 34 will be described with reference to FIGS.
4 will be described. FIG. 12 shows the finger A in the finger insertion hole 28.
Fig. 3 is a cross-sectional view of a state in which the
D2 is indicated by a broken line. This state is before the electric pump 11 pressurizes, the air bag 26 is deflated, and the slide knob 35 is at the rear so that the tightening belt 34 does not prevent the finger A from being inserted into the finger insertion hole 28. There is.

FIG. 13 shows a state in which the finger cuff 25 has tightened the finger A, and this tightening is performed by moving the slide knob 35 to the front side. The tightening belt 34 is pulled along the outer wall of the cylinder 31 by the movement of the slide knob 35, and first pulls the finger A toward the air bag 26, and then the air bag 26 is moved from the outer surface to the finger A with the drawn finger A as the center. The air bag 26 wraps around the finger A at the end.

Since the tightening belt 34 makes one rotation around the outer circumferences of the finger A and the finger cuff 25, the tightening belt 34 pulls the finger A until it comes into contact with the air bag 26, and the tightening force of the tightening belt 34 is increased by the air bag 2.
6 Add evenly over the entire surface. Therefore, the air bag 26 is shown in FIG.
Wherever the arteries D1 and D2 are, as shown in (3), the arteries D1 and D2 are tightly wound around the arteries. If the finger cuff 25 is tightly wound, pressing the finger cuffs the finger A excessively. In this embodiment, as described above, the tightening of the excessive winding is detected through the contact between the terminal 35T of the slide knob 35 and the terminal 36T of the slider 36, and this is displayed on the liquid crystal or the like.

To properly tighten the finger cuff 25,
Put the slide knob 35 back a little in front of the liquid crystal display,
This makes it possible to avoid excessive tightening and insufficient tightening of the finger cuff 25 at the same time.

[0033]

As is apparent from the above description, according to the electronic blood pressure monitor for a finger of the present invention, in the first aspect, the winding belt is formed into a spiral shape in a cylinder and is wound at least one and a half times. The clamping force of the tightening belt acts evenly on the entire surface of the finger cuff, and the finger cuff wraps around the finger closely regardless of the shape of the finger or the position of the artery. For this reason, there is an advantage that blood is prevented after pressurization is surely caused, there is no possibility of causing a measurement error, and the shortage of air supply due to the wrinkle of the air bag is alleviated.

Further, the tightening belts are spirally arranged along the inner and outer walls of the cylinder without contacting each other. Therefore, there is an advantage that the tightening force acts on the finger cuff without hindering the movement of the slide knob and until the finger cuff is tightly wound around the finger. In the second aspect, the finger cuff, the cylinder for arranging the tightening belt, the support frame for the slide knob, etc. are integrally formed to form the cuff housing member. Therefore, by attaching these finger cuff tightening adjustment parts to the cuff housing member in advance, the cumbersome cuff and tightening belt assembly work can be performed in a separate process from the assembly of the sphygmomanometer body. , Parts management becomes easy.

[Brief description of drawings]

FIG. 1 is a perspective view of a finger blood pressure monitor that is an embodiment of the present invention.

FIG. 2 is a block diagram showing an internal configuration of the sphygmomanometer for the finger.

FIG. 3 is a cross-sectional view of the sphygmomanometer for the finger.

FIG. 4 is an exploded perspective view of the finger blood pressure monitor.

FIG. 5 is a perspective view of a slide knob and a slider in the sphygmomanometer for the finger.

FIG. 6 is a perspective view of a tightening belt and a slider in the blood pressure monitor for the finger.

FIG. 7 is a perspective view of a slider in the sphygmomanometer for the same finger.

FIG. 8 is a perspective view of a slide knob and a slider in the finger blood pressure monitor.

FIG. 9 is a perspective view showing a configuration of a cuff housing member in the blood pressure monitor for the finger.

FIG. 10 is a perspective view of a cuff housing member and a belt cover in the same sphygmomanometer.

FIG. 11 is a perspective view of a cuff housing member in the blood pressure monitor for the finger.

FIG. 12 is a sectional view of the sphygmomanometer body showing a state in which a finger is inserted in the sphygmomanometer for the same finger.

FIG. 13 is a cross-sectional view of the sphygmomanometer main body showing a state in which the finger cuff of the sphygmomanometer for fingers is tightly wound.

FIG. 14 is a cross-sectional view of the sphygmomanometer body showing a state in which the finger cuff is pressurized in the same sphygmomanometer.

FIG. 15 is a sectional view of a conventional finger sphygmomanometer.

FIG. 16 is a cross-sectional view showing a state in which a finger cuff is wound in a conventional finger sphygmomanometer.

[Explanation of symbols]

1 Sphygmomanometer body for fingers 2 upper case 3 lower case 3B cylinder frame 25 finger cuff 26 air bags 28 finger insertion hole 29 Cuff accommodation member 30 cylinders 32 slide plate 34 Tightening belt 35 Slide picking 36 Slider 39 Belt cover

Claims (2)

[Claims] 1. A sphygmomanometer main body having a finger insertion hole formed on a side surface thereof, a finger cuff arranged in a crescent shape along a peripheral wall of the finger insertion hole, and provided so as to slide above the sphygmomanometer main body. A slide knob that adjusts the wrapping force of the finger cuff on the finger, and a tightening that intervenes between the slide knob and the finger cuff and that reads the wrapping of the finger cuff around the finger by moving the slide knob. A finger sphygmomanometer including an attached belt, wherein a slide knob is moved before pressurization and a finger cuff is wrapped around the finger,
The finger sphygmomanometer, wherein the tightening belt is spirally arranged along the inner wall and the outer wall of the cylinder forming the finger insertion hole for at least one and a half turns. 2. The finger insertion hole according to claim 1 is formed by a cylinder frame provided on both side surfaces of the sphygmomanometer main body, and the cylinder frame and the cylinder according to claim 1. The finger cuff according to claim 1 is formed as a cuff accommodating member for arranging the tightening belt on a peripheral surface, and the cuff accommodating member engages with the support frame supporting the slide knob according to claim 1 and the slide knob. ,
The finger sphygmomanometer according to claim 1, wherein a slide plate that allows the click operation is integrally formed.