JPS5828565Y2 - Pneumatic tube mounting structure for blood pressure measurement cuff - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an attachment structure for a pneumatic tube attached to a blood pressure measurement cuff.

Generally, blood pressure cuffs have a built-in air bag such as a rubber bladder, and a pneumatic tube such as a rubber tube or vinyl tube is attached to this air bag. Conventionally, the pneumatic tube was attached to the air bag by inserting the base end of the pneumatic tube into the air bag's pneumatic tube connection hole, melting the base end of the pneumatic tube with a spot welder, etc., and welding it to the air bag. was.

However, according to the conventional pneumatic tube installation structure, the base end of the pneumatic tube is melted and welded to the air bag, so the wall thickness of the base end of the pneumatic tube is thin and there is a risk of air leakage. In particular, the proximal end of the pneumatic tube is susceptible to excessive force and may be easily damaged.

This idea was made in view of the above circumstances, and consists of integrally forming a cross-shaped seat plate section at the proximal end of the pneumatic tube, which is substantially orthogonal to the length direction of the pneumatic tube and is larger than the external dimensions of the pneumatic tube. , a blood pressure measuring arm that prevents air leakage at the proximal end of the pneumatic tube by positioning this seat plate inside the air bag in the pneumatic tube connecting hole of the air bag and welding it to the air bag. The purpose is to provide a pneumatic pipe mounting structure in the band.

An embodiment of this invention will be described below with reference to FIGS. 1 to 3.

In Fig. 1, reference numeral 1 indicates a blood pressure measurement arm cuff formed into a belt shape, and this blood pressure measurement arm cuff 1 is sewn around the circumference to form a bag shape with seams 2, and with a seam 3 in the center. first cuff 4
and a second cuff 5.

A rigid annular member 6 is attached to the end of the first cuff 4, a female piece fastener 7 of a bonding type fastener (velvet type fastener) is attached to the outer surface, and the inside is used as an air bag. Rubber bag 8 is built-in.

Further, a retaining member 9 made of an elastic material is attached to the end of the second cuff 5, and a male piece fastener 10 of a bonding type fastener is attached to the outer surface.

The proximal ends of two elastic rubber tubes 11 and 12 are installed at predetermined positions of the rubber tube 98 at a predetermined distance apart, and the rubber tubes 11 are connected to a rubber bulb 14 via an exhaust valve 13. The rubber tube 12 is connected to a blood pressure display meter 15 to display the blood pressure value.

The rubber tube 11 has a tube 1 at its base end as shown in FIG.
A cross-shaped seat plate portion 11 a that is substantially orthogonal to the length direction of the tube 11 and larger than the external dimensions of the tube 11 is integrally formed, and this seat plate portion 11 a connects to the pneumatic pipe connection hole of the rubber case 8. Part 8a
It is located inside the rubber bag 8 and is welded to the rubber bag 8.

This also applies to the other rubber tube 12.

Therefore, when inserting the base end of the rubber tube 11 from the outside into the pneumatic tube connection hole 8a, the cross-shaped seat plate 11
Each of the protruding pieces a bends flexibly, making it easy to insert, and returning to its original shape after insertion, so that the protruding pieces can be welded to the rubber 98 and the rubber tube 11 body will melt into the rubber tube 11. Of course, the wall thickness does not become thinner, and the welded area can be increased, eliminating the risk of the welded portion peeling off, and therefore, air leakage can be effectively prevented.

As shown in FIG. 3, the shape of the base end 11a of the rubber tube 11 may be made into a cross shape in which each protrusion has a longer length, thereby increasing the mounting strength.

In addition, in the above embodiment, a rubber bladder was used as the air bag, but this invention is not limited to the above embodiment, and it is possible to use vinyl chloride as the blood pressure measurement armband and a vinyl sheet as the air bag. It can also be applied to

As explained above, this invention integrally forms a cross-shaped seat plate section at the base end of an elastic pneumatic tube, which is substantially orthogonal to the length direction of the pneumatic tube and larger than the external dimensions of the pneumatic tube. This seat plate is located inside the air bag in the pneumatic tube connection hole of the air bag and is welded to the air bag.

Therefore, due to this welding, the base end of the pneumatic tube is damaged and the wall thickness becomes thinner, so that there is no possibility of air leakage.

In addition, when attaching the air tube to the air bag, each protrusion on the cross-shaped seat plate at the base end of the air pressure tube bends flexibly, allowing the air pressure tube to be easily inserted into the air bag's air bag connection hole. Since it can be returned to its original shape inside the air bag, it not only simplifies the installation process, but also allows for a large welding area, eliminating the risk of peeling.

[Brief explanation of the drawing]

Figure 1 is a schematic plan view of the blood pressure measuring device, Figures 2 and 3 are
The figures show various embodiments of the pneumatic pipe mounting structure of this invention, in which A is a longitudinal sectional front view and the opening is a bottom view. 1... Bracelet for blood pressure measurement, 8... Rubber bag, 8a... Hole for connecting pneumatic tube, 11...
...Rubber tube, 11a...Seat plate part, 12...
...Rubber tube.

Claims (1)

[Scope of utility model registration request] In a blood pressure measurement cuff that includes an air bag and an elastic pneumatic tube connected to the air bag, at the proximal end of the pneumatic tube,
A cross-shaped seat plate that is approximately perpendicular to the length direction of the pneumatic tube and larger than the external dimensions of the pneumatic tube is integrally formed, and this seat plate is positioned inside the air bag in the pneumatic tube connection hole of the air bag. A pneumatic tube mounting structure for a blood pressure measurement wrist cuff, characterized in that the pneumatic tube is attached to an air bag and welded to the air bag.