Electronic sphygmomanometer and lining thereof

Abstract

The utility model provides a bushing of an electronic sphygmomanometer and the electronic sphygmomanometer, and the bushing is arranged in a gas multi-way pipe fitting of a measuring host of the electronic sphygmomanometer so as to be assembled with a connecting plug of a tourniquet in a close-fitting manner. The lining is a polygonal cylinder, and a circular through hole is formed in the center of the lining, so that the lining is of a hollow structure with openings in the two opposite end faces respectively. The bushing is provided with a first section and a second section which are integrally formed in the axis direction of the circular through hole, and the radial cross-sectional area of the first section is larger than that of the second section. Therefore, the phenomenon that the lining easily slips relative to the gas multi-way pipe fitting after being used for many times can be prevented through the polygonal outer contour, and meanwhile, the connecting plugs can be conveniently inserted in all directions for use through the circular through holes.

Description

Technical Field

[0001] This utility model relates to the field of blood pressure monitors, and in particular to a bushing for an electronic blood pressure monitor with a polygonal outer contour and a circular inner contour to improve the structural assembly stability and insertion convenience of the electronic blood pressure monitor as a relay element between the blood pressure monitor main unit and the cuff connector. Background Technology

[0002] A blood pressure monitor is a common non-invasive medical device used to measure blood pressure and is widely used in medical institutions and home health management. Based on their technical principles and structure, blood pressure monitors can be classified into mercury column, mechanical, and electronic types. Among these, the electronic blood pressure monitor is currently the most widely used type; it is a device that works with a cuff and automates the blood pressure measurement process.

[0003] The connection between the cuff and the blood pressure monitor body is usually secured by a male and female connector structure, which is crucial for ensuring the accuracy and stability of the measurement process. If the male and female connectors are not securely connected, they may detach due to external force or movement, causing structural loosening, interfering with the measurement process, and reducing equipment reliability. Furthermore, a poorly designed connection structure can increase the difficulty of connection for the user, potentially leading to unnecessary structural failures or damage.

[0004] As can be seen from the above, the design of the connector structure of a blood pressure monitor is crucial to its performance and user experience. Therefore, drawing on years of experience in this field, the author has conceived and proposed a bushing for an electronic blood pressure monitor and the monitor itself, to ensure the device's reliability and ease of use. Utility Model Content

[0005] One objective of this utility model is to provide a bushing for an electronic blood pressure monitor and the electronic blood pressure monitor itself. The bushing utilizes a polygonal outer contour structure and a circular perforated inner structure to improve the stability of the assembly between the bushing and the electronic blood pressure monitor body, and to provide operational convenience for easy insertion of the cuff connector.

[0006] To achieve the above objectives, this utility model provides a bushing for an electronic blood pressure monitor, which is installed inside a gas multi-port fitting of a measuring host for tight assembly with a connector of a cuff. The bushing is a polygonal prism, preferably a triangular or quadrilateral prism, with a circular perforation at its center, forming a hollow structure with openings on two opposite end faces. The bushing has a first section and a second section integrally formed along the axial direction of the circular perforation, and the radial cross-sectional area of ​​the first section is larger than that of the second section.

[0007] Preferably, the inner wall of the second section has a first annular protrusion, and the first annular protrusion is integrally formed with the inner wall of the second section.

[0008] Preferably, the two opposite end faces of the first annular protrusion are inclined from the edge toward the center, so that the axial cross section of the first annular protrusion is two symmetrical trapezoids.

[0009] Preferably, the inner wall of the second section has a second annular protrusion, which is located on one side of the first annular protrusion and is integrally formed with the inner wall of the second section. One end face of the second annular protrusion is coplanar with the end face of the first section opposite to the second section, and the other end face is inclined from the edge towards the center.

[0010] Preferably, the end face of the second annular protrusion, which is inclined from the edge toward the center, has a first curved section and a second curved section that are continuously arranged, and the first curved section and the second curved section are arranged in a state of being concave first and then convex.

[0011] Preferably, the outer surface of the second section is provided with an annular rib, and further, the annular rib is located between the first annular protrusion and the second annular protrusion.

[0012] Preferably, the first section has an annular protrusion at the end face of the section opposite to the second section, and the diameter of the annular protrusion is larger than the circular perforation.

[0013] Based on the same technical concept, this utility model also provides an electronic blood pressure monitor, comprising: a measuring host having a housing having a socket and a receiving groove provided in the housing corresponding to the socket; a gas multi-port fitting disposed in the receiving groove in the housing corresponding to the socket; and a bushing as described in the preceding paragraphs disposed in the gas multi-port fitting, with the first section facing the socket.

[0014] In summary, the bushing and electronic blood pressure monitor of this invention, through their polygonal outer contour and circular perforated inner contour structure, possess the advantages of both tight assembly with the gas multi-port fittings of the measuring unit and allowing users to insert the connector at any angle, thus providing excellent operational convenience. Specifically, the polygonal outer contour of the bushing reduces slippage relative to the gas multi-port fittings caused by repeated insertion and removal through the end corner structure, while the circular perforated inner contour offers the advantages of both tight assembly of the connector and easy insertion of the connector at various angles for assembly and use with the measuring unit. Furthermore, to improve the tightness of the assembly with the pressure vessel connector, the inner wall of the second section can be provided with a first annular protrusion and a second annular protrusion structure, achieved through a concave-convex structure. The first annular protrusion can be further designed with its opposite end faces inclined, and the second annular protrusion can be designed with one end face inclined and curved, so as to form a guiding insertion and tight-fitting fixation effect relative to the connector. In addition, to improve the tightness of the bushing and the gas multi-port fitting, annular ribs can be provided on the outer surface of the second section. Furthermore, the annular ribs can be located between the first annular protrusion and the second annular protrusion, so that the structural distribution is more appropriate. In addition, the bushing can be a triangular or quadrilateral prism, and an annular protrusion is provided at the end face of the first section to improve the overall structural strength. Attached Figure Description

[0015] Figure 1 This is an exploded three-dimensional structural diagram of the electronic blood pressure monitor according to a preferred embodiment of the present invention.

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the bushing according to a preferred embodiment of the present invention.

[0017] Figure 3A This is a partial sectional view (I) of the bushing, gas multi-port fitting and shell of the preferred embodiment of the present invention.

[0018] Figure 3B This is a partial sectional view (II) of the bushing, gas multi-port fitting and shell assembly of a preferred embodiment of the present invention.

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the bushing, which is another preferred embodiment of the present utility model.

[0020] Explanation of reference numerals in the attached drawings: 1-Bushing; 10-Circular perforation; 11-First section; 111-Annular protrusion; 12-Second section; 121-First annular protrusion; 122-Second annular protrusion; 1221-First curved section; 1222-Second curved section; 123-Annular rib; 2-Electronic blood pressure monitor; 20-Measuring main unit; 201-Housing; 2011-Socket; 2012-Receiving groove; 21-Gas multi-port fitting; 211-Assembly section; 212-Front tube body; 213-Rear tube body; 3-Variation band; 30-Connector. Detailed Implementation

[0021] To enable those skilled in the art to clearly understand the content of this utility model, the following description and accompanying drawings are provided for your reference. The structural dimensions, proportions, sizes, shapes, or application states shown in the drawings are merely illustrative of the technical features of this utility model and do not represent actual structural designs; this is hereby stated.

[0022] Please see Figures 1 to 4This invention provides a bushing for an electronic blood pressure monitor and an electronic blood pressure monitor 1, which are exploded three-dimensional structural diagrams, cross-sectional structural diagrams of the bushing, gas multi-port fitting and housing, and partial assembly cross-sectional diagrams of the bushing, gas multi-port fitting and housing, respectively, and a three-dimensional structural diagram of the bushing of another embodiment. The present invention provides a bushing for an electronic blood pressure monitor and the electronic blood pressure monitor itself. The electronic blood pressure monitor 2 includes a measuring host 20, a gas multi-port fitting 21 and a bushing 1, and the electronic blood pressure monitor 2 is fitted to a connector 30 of a cuff 3. The measuring host 20 has a housing 201, and the housing 201 has a socket 2011, wherein the outer side of the housing 201 may be provided with a stepped tapering recessed structure corresponding to the socket 2011, so as to achieve the effect of correcting the position of the connector 30 of the cuff 3 entering the hole. The gas multi-port fitting 21 is disposed within the housing 201 corresponding to the insertion hole 2011. The bushing 1, made of a soft material (e.g., silicone rubber), is disposed within the gas multi-port fitting 21. The bushing 1 is characterized by being a polygonal cylinder with a circular perforation 10 at its center, forming a hollow structure with openings on two opposite end faces. The circular perforation 10 is the insertion point for the connector 30. The bushing 1 has a first section 11 and a second section 12 integrally formed along the axial direction of the circular perforation 10, with the radial cross-sectional area of ​​the first section 11 being larger than that of the second section 12. After the bushing 1 is assembled into the gas multi-port fitting 21, the first section 11 faces the insertion hole 2011. The gas multi-port fitting 21 comprises an assembly section 211, a front tube body 212, and a rear tube body 213, which are sequentially connected and integrally formed in the axial direction. The assembly section 211 is assembled with the housing 201 so that the through hole of the gas multi-port fitting 21 is fixed to the housing 201 in a state corresponding to the insertion hole 2011. The outer diameter of the assembly section 211 is larger than that of the front tube body 212, and the outer diameter of the front tube body 212 is larger than that of the rear tube body 213. The bushing 1 is assembled after the gas multi-port fitting 21, approximately located at the position of the assembly section 211 and the front tube body. To make the gas multi-port fitting 21 more securely assembled to the housing 201, the housing 201 may be designed with a receiving groove 2012 at the position corresponding to the insertion hole 2011, so that the assembly section 211 of the gas multi-port fitting 21 can be fixed to the housing 201 by insertion. The assembly section 211, the front tube 212, and the rear tube 213 of the gas multi-port fitting 21 have sequentially decreasing outer diameters. Since the assembly section 211 is the closest to the force application position of the connector 30, the structural feature of designing a larger outer diameter at the end closest to the force application position of the connector 30 can make the insertion and removal process of the connector 30 more stable and reduce the chance of shaking.Furthermore, the outer diameter profile of the front tube 212 can also be designed as stepped, and the rear tube 213 has multiple branch tubes for connection to various air pumps (not shown) inside the measuring host 20. This allows the connector 30 to be inserted into the bushing 1, enabling communication between the pressure band 30 and the gas multi-port fitting 21, and allowing for inflation or deflation of the pressure band 3. Additionally, the axial length of the assembly section 211 can be less than that of the front tube 212, and the axial length of the front tube 212 can be less than that of the rear tube 213.

[0023] Preferably, the bushing 1 can be made of a slightly deformable plastic material, and the bushing 1 can be a triangular or quadrilateral prism, for example... Figure 1 The illustration shows that bushing 1 is a quadrilateral prism, but it can also be a square or rectangle; a square is used as an example here. For a diagram showing bushing 1 as a trilateral prism, please refer to [link to diagram]. Figure 4 As shown. In other words, the bushing 1 is made of a soft material and is installed inside the gas multi-port fitting 21 of the measuring host 20, and is a component that is tightly assembled with the connector 30 of the pressure pulse band 3. As for the through hole portion of the gas multi-port fitting 21, its contour and dimensions can be designed to correspond to those of the bushing 1. For example, when the bushing 1 is a quadrilateral prism, the contour of the through hole of the gas multi-port fitting 21 can be correspondingly set as a quadrilateral, and the width of the through hole of the gas multi-port fitting 21 decreases from the assembly section 211 toward the front tube body 212 according to the size of the first section 11 and the second section 12, that is, the axial cross-section of the gas multi-port fitting 21 in the assembly section 211 and the front tube body 212 region is stepped. Similarly, when the bushing 1 is a triangular prism, the through hole outline of the gas multi-port fitting 21 can also be set as a triangular shape, and its width can be adjusted according to the size of the first section 11 and the second section 12.

[0024] Accordingly, the bushing 1, through the end corner structure formed by its polygonal outer contour, achieves a tight fit with the gas multi-port fitting 21, preventing slippage. Simultaneously, due to the inner contour design of the circular perforation 10 of the bushing 1, the insertion of the connector 30 is not restricted by angle or orientation, making operation more convenient and simple. For example, the connector 30 can be inserted into the circular perforation 10 of the bushing 1 from any direction, forming a tight fit. Furthermore, the bushing 1 also improves the ease of inserting and removing the connector 30, as well as the stability of the connector 30 after insertion into the bushing 1, thereby enhancing the performance and usability of the electronic blood pressure monitor 2.

[0025] Preferably, the inner wall of the second section 12 has a first annular protrusion 121, and the first annular protrusion 121 is integrally formed with the inner wall of the second section 12. The first annular protrusion 121 creates a concave-convex structure on the inner wall of the circular hole 10, thereby improving the tightness of the fit between the bushing 1 and the connector 30. Furthermore, the two opposite end faces of the first annular protrusion 121 are inclined from the edge towards the center, resulting in an axial cross-section of the first annular protrusion 121 that is two symmetrical trapezoids. This inclined end face structure provides guidance when inserting the connector 30, making the insertion operation smoother. Simultaneously, the trapezoidal cross-section structure also makes the assembly of the bushing 1 and the connector 30 more compact, enhancing assembly stability.

[0026] Subsequently, the inner wall of the second section 12 may further have a second annular protrusion 122. The second annular protrusion 122 is located on one side of the first annular protrusion 121 and is integrally formed with the inner wall of the second section 12. One end face of the second annular protrusion 122 is coplanar with the end face of the first section 121 that is opposite to the second section 12. To further improve the tightness of the assembly of the bushing 1 and the connector 30 after insertion, the second annular protrusion 122 is provided on the inner wall of the second section 12 of the bushing 1, so that the inner wall of the second section 12 forms more concave and convex structures, thereby increasing the area of ​​mutual interlocking with the outer wall of the connector 30 and achieving a tighter assembly effect.

[0027] Furthermore, the second annular protrusion 122, which is coplanar with the end face of the second segment 12, is inclined from the edge towards the center, and has a first curved segment 1221 and a second curved segment 1222 arranged consecutively, with the first curved segment 1221 and the second curved segment 1222 arranged in a concave-convex configuration. This also guides the connector 30 to be smoothly inserted, improving assembly convenience and maintaining the stability of the assembled structure.

[0028] Furthermore, regarding the tight fit between the bushing 1 and the gas multi-port fitting 21, an annular rib 123 can be provided on the outer surface of the second section 12. Thus, via the annular rib 123, after the bushing 1 is assembled to the gas multi-port fitting 21, it can form a pressing and locking action against the inner wall of the gas multi-port fitting 21, thereby improving the stability of the assembly and preventing the bushing 1 from slipping off during insertion and removal.

[0029] In one embodiment, the annular rib 123 is located between the first annular protrusion 121 and the second annular protrusion 122. This allows for a more uniform distribution of the tightening force between the bushing 1 and the gas multi-port fitting 21, as well as the tightening force between the connector 30 and the bushing 1 after insertion. In other words, this structural design prevents the tightening force between the bushing 1 and the gas multi-port fitting 21 and the connector 30 from being excessively concentrated in a specific area, thereby improving the assembly stability of the bushing 1.

[0030] Furthermore, an annular protrusion 111 is provided at the end face of the first section 11 that is connected to the second section 12, and the diameter of the annular protrusion 111 is larger than that of the circular through hole 10. This not only effectively enhances the structural strength of the bushing 1, but also improves its resistance to excessive deformation, ensuring that it is not prone to fatigue damage during long-term use or repeated assembly and disassembly.

[0031] The state of the bushing 1 assembled with the gas multi-port fitting 21 can be seen in the following reference. Figure 3A As shown. After the bushing 1 is installed on the gas multi-port fitting 21, the end corner structure of the polygonal column effectively prevents the bushing 1 from slipping off during the insertion and removal of the connector 30, thus enhancing the assembly stability between the bushing 1 and the gas multi-port fitting 21. The inner wall of the gas multi-port fitting 21 can be provided with a corresponding groove corresponding to the annular rib 123, or it can be without a specially designed groove. Due to the soft material characteristics of the bushing 1, after the bushing 1 is installed on the gas multi-port fitting 21, the annular rib 123 can be squeezed against the inner wall of the gas multi-port fitting 21, thereby forming a stronger locking effect relative to the inner wall of the gas multi-port fitting 21. The state of the connector 30 inserted into the bushing 1 can be seen in the reference. Figure 3B As shown, the circular through-hole 10 allows for insertion of the connector 30 without directional or angular limitations, enabling the user to insert the connector 30 into the measuring host 20 from any angle. When the connector 30 is inserted into the circular through-hole 10, a tight assembly is achieved due to the first annular protrusion 121 and the second annular protrusion 122. Furthermore, the end faces of the first annular protrusion 121 and the second annular protrusion 122 have an inclined design, which provides a guiding effect, making the insertion of the connector 30 smoother and less strenuous. Incidentally, the connector 30 can be optionally designed with annular groove structures corresponding to the first annular protrusion 121 and the second annular protrusion 122. However, since the bushing 1 is made of a soft material, the connector 30 does not necessarily need to be designed with a completely corresponding recessed structure. During the insertion process, the outer wall of the connector 30 can be compressed by applying force to the first annular protrusion 121 and / or the second annular protrusion 122 to complete the insertion. This can also ensure that the connector 30 and the inner wall of the bushing 1 form a tight assembly and effectively prevent loosening.

[0032] In summary, the bushing of the electronic blood pressure monitor of this invention, along with the electronic blood pressure monitor itself, allows for a tight assembly with the inner wall of the gas multi-port fitting through the end-feet structure of the bushing's polygonal outer contour, effectively preventing slippage due to repeated insertion and removal of the connector. Simultaneously, the inner contour design of the bushing's circular perforation facilitates insertion of the connector from any angle, enhancing ease of use and operational flexibility. Furthermore, to improve the stability of the tight fit between the bushing and the connector, a first annular protrusion, or even a second annular protrusion, can be provided on the inner wall of the second section of the bushing, creating a concave-convex structure on the inner wall of the circular perforation, thereby increasing the assembly strength with the connector. The first and second annular protrusions can also be designed with inclined end faces, providing a guiding effect during insertion and making connector assembly more convenient and smooth. Furthermore, annular ribs can also be provided on the outer surface of the second section to form a stable locking effect with the inner wall of the gas multi-way fitting, enhancing the assembly strength between the bushing and the inner wall of the gas multi-way fitting and preventing the bushing from slipping off. These annular ribs can also be positioned between the first and second annular protrusions to further ensure uniform stress distribution and improve the overall structural stability. Additionally, an annular protrusion can be provided at the end face of the first section to enhance the structural strength of the bushing and ensure it is not easily deformed or damaged during long-term use. As for the outer contour design of the bushing, it is preferable to make it a triangular or quadrilateral prism, which can more effectively promote a tight fit with the gas multi-way fitting, thereby further improving the overall assembly stability and practicality.

[0033] The above description is merely a preferred embodiment of the present utility model and should not be used to limit the scope of the present utility model. Therefore, any textual changes or modifications made without departing from the equivalent scope of the present utility model should still be covered within the protection scope of the present utility model.

Claims

1. A bushing for an electronic blood pressure monitor, disposed within a gas multi-port fitting of a measuring host, for tight assembly with a connector of a cuff, characterized in that: The bushing is a polygonal cylinder with a circular perforation at its center, so that the bushing forms a hollow structure with openings on its two opposite end faces. The bushing has a first section and a second section integrally formed in the axial direction of the circular perforation, and the radial cross-sectional area of ​​the first section is greater than that of the second section.

2. The bushing of the electronic blood pressure monitor as described in claim 1, characterized in that, The inner wall of the second section has a first annular protrusion, and the first annular protrusion is integrally formed with the inner wall of the second section.

3. The bushing of the electronic blood pressure monitor as described in claim 2, characterized in that, The two opposite end faces of the first annular protrusion are inclined from the edge toward the center, so that the axial cross section of the first annular protrusion is two symmetrical trapezoids.

4. The bushing of the electronic blood pressure monitor as described in claim 3, characterized in that, The inner wall of the second section has a second annular protrusion. The second annular protrusion is located on one side of the first annular protrusion and is integrally formed with the inner wall of the second section. One end face of the second annular protrusion is coplanar with the end face of the first section opposite to the second section.

5. The bushing of the electronic blood pressure monitor as described in claim 4, characterized in that, The second annular protrusion is inclined from the edge toward the center relative to the end face of the second section, which is coplanar with the end face of the second section, and has a first curved section and a second curved section arranged in succession, and the first curved section and the second curved section are arranged in a state of first concave and then convex.

6. The bushing of the electronic blood pressure monitor as described in claim 5, characterized in that, The outer surface of the second section is provided with an annular rib.

7. The bushing of the electronic blood pressure monitor as described in claim 6, characterized in that, The annular rib is located between the first annular protrusion and the second annular protrusion.

8. The bushing of the electronic blood pressure monitor as described in claim 1, characterized in that, The bushing is a triangular or quadrilateral prism.

9. The bushing of the electronic blood pressure monitor as described in claim 1, characterized in that, The first section has an annular protrusion at the end face that connects to the second section, and the diameter of the annular protrusion is larger than the circular perforation.

10. An electronic blood pressure monitor, characterized in that, Include: A measuring host has a housing with a socket and a receiving groove provided inside the housing at the location of the socket. A multi-port gas fitting, corresponding to the receiving groove located within the housing for the insertion port; and A bushing as described in any one of claims 1 to 9 is disposed within the gas multi-port fitting, with the first section facing the socket.

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