Medical multifunctional measuring scale

By designing a multifunctional medical measuring ruler that integrates a circular shaft angle measuring module and a measuring tape, the problem of length and angle measurement for patients with scar contractures has been solved. This enables rapid and accurate multifunctional measurement, suitable for measuring the activity functions of various patients, and improves operational efficiency and safety.

CN120938410APending Publication Date: 2025-11-14SHANGHAI NINTH PEOPLES HOSPITAL SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE
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Patent Information

Application Number
CN202511180542.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-22
Publication Date
2025-11-14

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Abstract

The invention provides a medical multifunctional measuring scale which comprises a circular shaft angle measuring module, the circular shaft angle measuring module comprises a transparent shell A, a transparent shell B and a pivot penetrating through the transparent shell A and the transparent shell B, an annular opening is formed in the side wall of the transparent shell A and / or the transparent shell B, and the circular shaft angle measuring module further comprises an angle measuring piece. One end of each angle measuring piece is rotationally arranged on the pivot, the other end of each angle measuring piece penetrates through the annular opening and then is located outside the cavity, and an angle dial is arranged on the outer surface of the circular shaft angle measuring module; the medical multifunctional measuring scale further comprises a measuring tape arranged in the cavity. The medical multifunctional measuring scale provided by the invention adopts a multifunctional integrated design, the measuring efficiency is improved, and the circular shaft angle measuring module and the measuring tape are integrated in the same cavity, so that the integrated measurement of the length and the angle is realized; the problem that in scar contracture assessment, pain points of tools need to be frequently switched (for example, the bending angle and the stretching length of fingers are measured at the same time) is solved, and the operation time is greatly shortened.
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Description

Technical Field

[0001] This invention belongs to the field of medical measuring instrument technology, specifically relating to a medical multifunctional measuring ruler. Background Technology

[0002] Currently, functional assessment of patients with scar contractures typically requires the separate use of length and angle measuring tools, which is cumbersome and inefficient. Existing medical measuring tools cannot simultaneously meet the length and angle measurement needs of these patients, especially when measuring finger extension length, flexion angle, and functional range of motion in areas such as the neck and armpit. These tools also fail to fully meet the physiological curvature and comfort requirements of the human body, lacking an integrated solution. Therefore, developing a multifunctional measuring ruler has significant clinical application value, enabling medical staff to assess the extent of scarring and the degree of functional limitation in the surgical area, better optimize surgical plans, and promote patient recovery. Summary of the Invention

[0003] To address the above problems, this invention proposes a multifunctional medical measuring ruler.

[0004] The technical solution provided by this invention is a medical multifunctional measuring ruler, including a circular axis angle measuring module. The circular axis angle measuring module includes a transparent shell A, a transparent shell B, and a pivot penetrating both. The transparent shell A and the transparent shell B are fastened together to form a cavity. The transparent shell A and the transparent shell B are rotatably connected around the axis of the pivot, causing the transparent shell A and the transparent shell B to be in a closed state or an open state. The sidewalls of the transparent shell A and / or the transparent shell B are provided with an annular opening. The circular axis angle measuring module also includes an angle measuring element. One end of the angle measuring element is rotatably mounted on the pivot, and the other end passes through the annular opening and is located outside the cavity. There are two angle measuring elements. The outer surface of the circular axis angle measuring module is provided with an angle scale. The surface of the angle scale is perpendicular to the central axis of the pivot. The angle scale on the angle scale is used to indicate the angle between the two angle measuring elements. The medical multifunctional measuring ruler also includes a measuring tape disposed within the cavity.

[0005] In one embodiment of the present invention, a measuring tape is provided inside the cavity, and a measuring tape outlet is provided on the transparent housing A or the transparent housing B. One end of the measuring tape is fixed to the measuring tape and is evenly wound on the measuring tape, and the other end of the measuring tape pops out of the measuring tape outlet.

[0006] In one embodiment of the present invention, the angle measuring component is provided with a groove along its length direction; The medical multifunctional measuring ruler also includes a measuring ruler, one end of which is slidably disposed within the groove.

[0007] In one embodiment of the present invention, the angle measuring element is provided with length scale along the length direction of the slide groove.

[0008] In one embodiment of the present invention, the accuracy of the length scale is 1 mm.

[0009] In one embodiment of the present invention, a sliding locking element is provided in the groove to control the sliding position of the measuring ruler.

[0010] In one embodiment of the present invention, the sliding locking member includes: A rack is provided on the groove wall along its length; The slider is slidably disposed within the groove, and the side wall of the slider is provided with a slot that matches the rack.

[0011] In one embodiment of the present invention, the accuracy of the angle scale is 1 to 5°.

[0012] In one embodiment of the present invention, the angle measuring element is a strip-shaped plate structure.

[0013] In one embodiment of the present invention, the outer surfaces of the angle measuring element, the measuring ruler, and the measuring tape are all provided with a nano-silver antibacterial coating.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The medical multifunctional measuring ruler provided by this invention features a multifunctional integrated design that improves measurement efficiency. By integrating the circular shaft angle measuring module and the measuring tape into the same cavity, it achieves integrated measurement of length and angle, solving the pain point of frequently switching tools in scar contracture assessment (such as simultaneously measuring finger flexion angle and extension length), and greatly reducing operation time.

[0015] 2. In the medical multifunctional measuring ruler provided by the present invention, the two angle measuring components can rotate freely, which is suitable for measuring the multi-directional range of motion of joints (such as wrist dorsiflexion / palmar flexion), and the measurement error is greatly reduced.

[0016] 3. In the medical multifunctional measuring ruler provided by the present invention, the sliding locking structure ensures the stability of measurement. Specifically, the measuring ruler is locked in the slide groove by a slider + torsion spring clamping mechanism. During the measurement process: it automatically locks when there is no external force, and can be unlocked by squeezing the slider with one hand, which facilitates quick adjustment of length and avoids reading deviation caused by shaking.

[0017] 4. In the medical multifunctional measuring ruler provided by the present invention, the surfaces of the angle measuring component, the measuring ruler, and the tape measure are all covered with a nano-silver antibacterial coating, which meets the requirements for hospital infection control.

[0018] 5. The medical multifunctional measuring ruler provided by this invention can be used for medical measurement of patients' activity functions such as neck scar contracture, axillary scar contracture, and hand / foot dysfunction. It can also be used for routine surgical area marking measurement, preanesthesia cervical distance measurement, and lymphedema circumference measurement. Attached Figure Description

[0019] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 A schematic diagram of a medical multifunctional measuring ruler provided in an embodiment of the present invention (two angle measuring components are in an open state). Figure 2 Another structural schematic diagram of a medical multifunctional measuring ruler provided in an embodiment of the present invention (the included angle between the two angle measuring components is zero). Figure 3 This is a schematic diagram of the internal structure of an angle measuring device according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of a circular shaft angle measuring module provided in an embodiment of the present invention; In the diagram: transparent shell A1, transparent shell B2, pivot 3, annular opening 4, angle scale 5, measuring tape 6, tape measure outlet 7, measuring ruler 8, slide groove 9, length scale 10, rack 11, slider 12, push plate 13, angle measuring component 14. Detailed Implementation

[0020] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0021] Example Reference Figures 1-4As shown, this embodiment provides a medical multifunctional measuring ruler, including a circular shaft angle measuring module. The circular shaft angle measuring module includes a transparent shell A1, a transparent shell B2, and a pivot 3 passing through both. The transparent shell A1 and the transparent shell B2 are fastened together to form a cavity. The transparent shell A1 and the transparent shell B2 are rotatably connected around the axis of the pivot 3, which drives the transparent shell A1 and the transparent shell B2 to be in a closed state or an open state. The side wall of the transparent shell A1 and / or the transparent shell B2 is provided with an annular opening 4. The circular shaft angle measuring module also includes an angle measuring component. One end of the angle measuring component is connected to the pivot 3 through a bearing to achieve 360° free rotation. The other end passes through the annular opening 4 and is located outside the cavity. There are two angle measuring components. The outer surface of the circular shaft angle measuring module is provided with an angle scale 5. The surface of the angle scale 5 is perpendicular to the central axis of the pivot 3. The angle scale on the angle scale 5 is used to indicate the angle between the two angle measuring components. The medical multifunctional measuring ruler also includes a measuring tape 6 housed within a cavity.

[0022] Reference Figure 4 As shown, the transparent shells A1 and B2 are made of high-strength transparent polycarbonate and are connected by a stainless steel pivot 3 to form a sealed cavity.

[0023] Reference Figure 1 As shown, in this embodiment, the angle scale 5 is etched on the outer surface of the housing A. With the center of the pivot 3 as the reference point, a concentric double-ring scale design is adopted (inner ring 0-180°, outer ring 180-360°), with an accuracy of 1°.

[0024] In this embodiment, a measuring tape is provided inside the cavity, and a measuring tape outlet 7 is provided on the transparent shell A1 or the transparent shell B2. One end of the measuring tape 6 is fixed to the measuring tape and is evenly wound on the measuring tape, and the other end of the measuring tape 6 pops out of the measuring tape outlet 7.

[0025] In this embodiment, the measuring tape is an automatic spring-loaded measuring tape, which is a flexible fiberglass coated tape (6mm wide) marked with double-sided graduations (cm / inch).

[0026] Reference Figure 3 As shown, in this embodiment, the angle measuring component 14 is provided with a groove 9 along its length direction; the medical multifunctional measuring ruler also includes a measuring ruler 8, one end of which is slidably disposed in the groove 9.

[0027] Reference Figure 3 As shown, in this embodiment, both the measuring ruler 8 and the angle measuring component 14 are provided with length scales 10 along the length direction of the slide groove.

[0028] In this embodiment, the precision of length scale 10 is 1 mm.

[0029] In this embodiment, a sliding locking element is provided in the slide groove 9 to control the sliding position of the measuring ruler 8.

[0030] Reference Figure 3 As shown, in this embodiment, the sliding locking component includes: A rack 11 is provided on the groove wall of the slide groove 9 along its length direction; The slider 12 is slidably disposed in the groove 9, and the side wall of the slider 12 is provided with a groove that matches the rack 11.

[0031] When there is no external force, the slot engages with the serrated opening on the rack 11, restricting the movement of the slider 12, and the measuring ruler 8 is in a locked state; when an external force pushes the slider 12 to move along the slide groove 9, the measuring ruler 8 is in an unlocked state.

[0032] Furthermore, a push plate 13 can be provided on the slider 12 to facilitate the application of external force to the slider 12.

[0033] In this embodiment, the slide 9 is a T-shaped slide 9, and the symmetrically distributed sawtooth grooves (tooth pitch 1mm) on the inner wall are the rack 11 (sawtooth opening) in this embodiment.

[0034] In this embodiment, the accuracy of the angle scale is 1°.

[0035] In this embodiment, the angle measuring component 14 is a strip-shaped plate structure.

[0036] In this embodiment, the outer surfaces of the angle measuring component 14, the measuring ruler 8, and the measuring tape 6 are all coated with a nano-silver antibacterial coating.

[0037] Specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A medical multifunctional measuring ruler, characterized in that, The system includes a circular shaft angle measuring module, comprising a transparent housing A, a transparent housing B, and a pivot penetrating both. The transparent housing A and the transparent housing B are fastened together to form a cavity. The transparent housing A and the transparent housing B are rotatably connected around the axis of the pivot, allowing them to be in a closed or open state. An annular opening is provided on the sidewall of the transparent housing A and / or the transparent housing B. The circular shaft angle measuring module also includes angle measuring components. One end of each angle measuring component is rotatably mounted on the pivot, and the other end passes through the annular opening and is located outside the cavity. Two angle measuring components are provided. An angle scale is provided on the outer surface of the circular shaft angle measuring module. The surface of the angle scale is perpendicular to the central axis of the pivot. An angle scale on the angle scale indicates the angle between the two angle measuring components. The medical multifunctional measuring ruler also includes a measuring tape disposed within the cavity.

2. The medical multifunctional measuring ruler according to claim 1, characterized in that, The cavity is equipped with a measuring tape, and the transparent housing A or the transparent housing B has a measuring tape outlet. One end of the measuring tape is fixed to the measuring tape and is evenly wound on the measuring tape, and the other end of the measuring tape pops out of the measuring tape outlet.

3. The medical multifunctional measuring ruler according to claim 1, characterized in that, The angle measuring component has a groove along its length. The medical multifunctional measuring ruler also includes a measuring ruler, one end of which is slidably disposed within the groove.

4. The medical multifunctional measuring ruler according to claim 3, characterized in that, The angle measuring component has length graduations along the length direction of the slide groove.

5. The medical multifunctional measuring ruler according to claim 4, characterized in that, The accuracy of the length scale is 1 mm.

6. The medical multifunctional measuring ruler according to claim 3, characterized in that, The groove is equipped with a sliding locking element to control the sliding position of the measuring ruler.

7. The medical multifunctional measuring ruler according to claim 6, characterized in that, The sliding locking element includes: A rack is provided on the groove wall along its length; The slider is slidably disposed within the groove, and the side wall of the slider is provided with a slot that matches the rack.

8. The medical multifunctional measuring ruler according to claim 1, characterized in that, The accuracy of the angle scale is 1 to 5°.

9. The medical multifunctional measuring ruler according to claim 1, characterized in that, The angle measuring component is a strip-shaped structure.

10. The medical multifunctional measuring ruler according to any one of claims 1-9, characterized in that, The outer surfaces of the angle measuring component, the measuring ruler, and the measuring tape are all coated with a nano-silver antibacterial coating.