Patent Application
20060184053
1. Field of the Invention
The present invention relates to a tunnel type sphygmomanometer assembly, more particularly to an improved tunnel type sphygmomanometer assembly that pulls an air cuff by a force in the vertical direction instead of the horizontal direction and coils the air cuff directly onto a transmission axle that provides a size smaller than that of a traditional tunnel type sphygmomanometer.
2. Description of the Related Art
With reference to
Further, the air cuff 93 is connected to a pressure sensor (not shown in the figure) by an air duct (not shown in the figure), and the pressure sensor is used to detect the pulse of blood pressure. A display device (not shown in the figure) is disposed on the other side of the base 90, and the display device is coupled to a control device through an electric circuit for displaying the result of the pulse of the measured blood pressure (not shown in the figure).
When the tunnel type sphygmomanometer is used, the user's arm is placed in the tunnel formed by the air cuff 93 first. When the user turns on the start button, the control device will start an air pump to inflate the air cuff 93 and also start the motor, such that the motor drives the serrated belt 98, and the sliding base 97 is driven by the serrated belt 98 to move in a horizontal direction away from the guide track 95 and the plastic plate 94 is driven by the sliding base 97 to gradually withdraw inward to wrap the air cuff 93 around the user's arm for measuring the user's blood pressure. The result of the measured pulse of the blood pressure is displayed on the display device. However, the guide track 95 is installed along the horizontal direction and the sliding base 97 slides on the guiding track 95, therefore when the sliding base 97 drives the plastic plate 94 to move, the plastic plate 94 will also move in the horizontal direction. Therefore, it is necessary to have a sliding distance along the horizontal direction to accommodate the sliding base 97, which will cause a larger size to the sphygmomanometer.
In view of the foregoing shortcomings of the prior art, the inventor of the present invention focused on the problem to start finding a way for the improvement and overcome the shortcomings in hope of finding a feasible solution, and conducted extensive researches and experiments and finally invented the tunnel type sphygmomanometer assembly in accordance with the present invention to reduce the size of the traditional tunnel type sphygmomanometers.
Therefore, it is the primary objective of the present invention to provide an improved tunnel type sphygmomanometer assembly, which comprises a platform, a support frame disposed under the platform, a retaining base disposed under the support frame, a transmission axle being pivotally coupled to the retaining base and driven by a driving member, and the driving member being coupled to a control device. Further, the platform comprises a deformable and coiled circular plate, an air cuff wrapped around the surface of the plate, and one end of the plate being fixed onto the platform and the other end being fixed to the transmission axle under the platform, and the transmission axle being driven by a driving member, so that when a user's arm is placed in the air cuff for measuring blood pressure, the control device will start an air pump to inflate the air cuff through an air duct, and the control device also will start the driving member, and the driving member will drive the transmission axle to rotate as to coil the plate of the transmission axle directly onto the transmission axle. As a result, the tunnel type sphygmomanometer of the present invention has a smaller size than the general prior-art tunnel type sphygmomanometer that pulls the plate along the horizontal direction.
The above objects, features and advantages of the present invention will become apparent from the following detailed description taken with the accompanying drawing.
Please refer to
Further, the retaining base 22 comprises a semicircular upwardly opened accommodating groove 221, and the accommodating groove 221 with a closed end comprises a pivotal hole 222, and a cylinder 24 comprised of two corresponding semicircular casings is disposed in the accommodating groove 221. One end of the cylinder 24 is a closed end, and the other end is not completely sealed but maintains a gap with respect to the opening 211 of the support frame 21, and a transmission axle 25 is disposed in the cylinder 24. The transmission axle 25 has a pivotal hole 222 pivotally coupled to one end of the transmission axle 25, and a passive gear 26 is coupled to another end of the transmission axle 25, and the passive gear 26 is engaged with an active gear 27, and the active gear 27 is mounted on a driving member 30 which is a motor in this embodiment. The driving member 30 is pivotally coupled to a driving base 31, and the driving base 31 is fixed at a position adjacent to the open end of the retaining base 22.
The platform 20 further comprises a penetrating hole 201 corresponding to the opening 211 of the support frame 21, a deformable and circular plate 40, and an air cuff 41 wrapped around the plate 40. One end of the plate 40 is fixed onto the platform 20 and the other end passes through the penetrating hole 201, the opening 211 and the gap of the cylinder 24 to couple with the transmission axle 25 as shown in
Please refer to FIGS. 2 to 5 for the use of the tunnel type sphygmomanometer according to the present invention. When the user's arm is placed in the air cuff 41 and start the start button, the control device will start the air pump and inflate the air cuff 41 through an air duct and also start the driving member 30. The driving member 30 will immediately drive the active gear 27, and the active gear 27 will drive the engaged passive gear 26 to rotate the transmission axle 25 that is coupled with the passive gear 26 as to gradually coil the plate 40 of the transmission axle 25 onto the transmission axle 25. Since the transmission axle 25 is disposed under the platform 20, therefore the plate 40 moves in the vertical direction and provides a smaller size to the sphygmomanometer. The present invention is different from the traditional sphygmomanometers pulling the plate 40 along the horizontal direction and having a larger size for the traditional sphygmomanometer.
In summation of the above description, the present invention herein enhances the performance than the conventional structure and further complies with the patent application requirements and is submitted to the Patent and Trademark Office for review and granting of the commensurate patent rights.
While the invention has been described by way of examples and in terms of preferred embodiments, it is to be understood that the invention is not limited thereto. To the contrary, it is intended to cover various modifications and similar arrangements and procedures, and the scope of the appended claims therefore should be accorded the broadest interpretation so as to encompass all such modifications and similar arrangements and procedures.
