Skeletal growth measurer
By introducing a dual recording method of trace paper tape and scale pointer into the bone measurement device, the problem of data traceability and verification in existing technologies is solved, realizing the reliability and accuracy of bone growth measurement, which is suitable for medical research and clinical diagnosis.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- LUOYANG ORTHOPEDIC TRAUMATOLOGICAL HOSPITAL
- Filing Date
- 2026-03-06
- Publication Date
- 2026-05-12
AI Technical Summary
Existing bone growth measurement devices cannot provide physical evidence for retrospection and verification, leading to data misreading and transcription errors, and making it impossible to reproduce measurement results.
It employs a skeletal measuring instrument, recording the length by leaving a trace during the measurement process. The combination of trace paper tape and scale pointer ensures the reliability of the measurement results, and it is equipped with an adjustment mechanism for omnidirectional image recording.
It achieves intuitive, accurate, and reliable measurement results, is suitable for long-term tracking and archiving, avoids misreading and transcription errors in digital records, and meets the needs of medical research and clinical diagnosis.
Smart Images

Figure CN122004832A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of medical assistive device technology, and in particular to a bone growth measuring device. Background Technology
[0002] Growth and development in children and adolescents is one of the core indicators for measuring their health status. Bone growth, especially the linear growth of long bones (such as the ulna, radius, tibia, and femur of the limbs), is the most direct manifestation of growth and development. Accurate and regular monitoring of bone growth rate is of vital clinical value for assessing children's nutritional status, diagnosing endocrine diseases, predicting adult height, and guiding clinical intervention and treatment.
[0003] According to Chinese Patent Publication No. CN219250231U, a bone measuring device is disclosed, including a base, a rear base fixedly connected to the right side of the top of the base, a positioning sensor fixedly connected to the left side of the rear base, and a pad fixedly connected to the left side of the rear base and outside the positioning sensor. This invention features a base for supporting a rear base, which in turn limits the user's heel. A positioning sensor enables omnidirectional foot positioning. Pads protect the user's heel. A positioning shell, movable plate, first spring, movable rod, fixed plate, high-strength membrane, and ultrasonic transducer clamp and position the user's foot and perform ultrasonic bone measurements. A positioning mechanism limits the forefoot, and soft padding at the forefoot limits the sides of the forefoot. However, this device has shortcomings. Data needs to be manually recorded after bone measurement, which carries the risk of misreading and transcription errors. Once the measurement is complete, the process cannot be reproduced. If there is any doubt about the data, there is no physical evidence to trace back and verify it. The reliability of the data depends entirely on the operator's judgment and recording at the moment of measurement. Summary of the Invention
[0004] This invention provides a bone growth measuring device to address the following technical problems: This solves the problem that current bone growth measurement devices lack physical evidence for retrospection and verification.
[0005] This invention provides a bone growth measuring device, employing the following technical solution: A bone growth measuring device, comprising: Skeletal measurement frame; A bone measurement mechanism is disposed on the upper surface of a bone measurement frame. This mechanism is used to leave length traces while measuring bone growth. The bone measurement mechanism includes a connecting bracket, a limiting rod, a sliding measuring block, a sliding retaining ring, a fixing retaining ring, a scale plate, a marking plate, a trace paper tape, a scale pointer, an ink cartridge, a rotating ball, an outer support arm, a sliding groove, and a limiting plate. Two connecting brackets are provided, with their lower ends fixedly connected to the left and right sides of the upper surface of the bone measurement frame. Support plates are fixedly connected to the front and rear sides of the upper surface of the two connecting brackets. A limiting rod is rotatably connected between the two support plates. A sliding measuring block is inserted through the outer side of the limiting rod. A limiting plate is fixedly connected to the outer side of the sliding measuring block. An ink cartridge is longitudinally inserted through the middle of the limiting plate. A rotating ball is embedded below the ink cartridge. A trace paper tape is placed below the rotating ball. The lower surface of the trace paper tape is adhered to the upper surface of the marking plate, which is fixedly connected to the outer side of the connecting bracket.
[0006] Specifically, when measuring bone growth length, a new trace paper strip is taken and smoothly adhered to the upper surface of the marking plate. The leg of the person being measured is placed horizontally, with the thigh end against the inside of the fixed retaining ring and the lower leg end against the inside of the movable retaining ring. As the sliding retaining ring moves within the sliding groove, the sliding measuring block, rigidly connected to it, also slides linearly under the guidance of the limiting rod and the limiting slide rail. As the sliding measuring block moves, the scale pointer moves synchronously on the scale plate fixed to the inside of the connecting bracket. The operator can directly read the value indicated by the scale pointer, which is the current length of the bone. At the same time, the limiting plate, ink cartridge, and rotating ball fixed to the outside of the sliding measuring block also move together. When the sliding measuring block moves to its final position, the rotating ball is exactly above the trace paper strip on the marking plate. As the sliding measuring block moves, the rotating ball... A ball rolls across the trace paper strip, and red ink from the ink cartridge is evenly applied to the strip, leaving a length mark. After measurement, the operator records the precise reading displayed by the pointer on the scale plate. The trace paper strip with the red length mark is removed from the marking plate and archived along with the measurement date, patient information, etc. When performing the next measurement, the above steps are repeated, and the new trace paper strip is placed side by side with the old one for comparison. This allows for a direct and accurate view of the bone length increase. This dual recording method avoids the misreading, transcription errors, or subjective doubts that may occur with purely digital records, making the measurement results more intuitive and reliable. It is especially suitable for medical research or clinical diagnosis that requires long-term tracking and archiving.
[0007] In one feasible technical solution of the present invention, a scale pointer is fixedly connected to the inner side of the sliding measuring block, the lower end of the scale pointer is disposed on the upper surface of the scale plate, the scale plate is fixedly connected to the inner side of the connecting bracket, the inner side of the sliding measuring block is drivenly connected to the sliding retaining ring, and a fixed retaining ring is disposed on the front side of the sliding retaining ring.
[0008] In one feasible technical solution of the present invention, an adjustable mechanism is provided on the outside of the bone measuring frame. The adjustable mechanism includes a connector, a horizontal flip arm, a vertical flip arm, a micro motor, a tightening rope, and a winding column. The connector is fixedly connected to the outside of the connecting bracket. The horizontal flip arm is rotatably connected to the outside of the connector. The vertical flip arm is rotatably connected to the upper side of the horizontal flip arm. A camera is provided on the inner side of the upper end of the vertical flip arm.
[0009] In one feasible technical solution of the present invention, a micro motor is fixedly connected to the lower outer side of the longitudinal tilting arm, and the output end of the micro motor is drivenly connected to a winding column.
[0010] In one feasible technical solution of the present invention, a tightening rope is wound around the outer surface of the winding column, and the end of the tightening rope away from the winding column is connected to the inner side of the sliding retaining ring.
[0011] In one feasible technical solution of the present invention, the lower end of the sliding retaining ring is disposed inside the sliding groove, the sliding groove is formed inside the outer support arm, and a fixing retaining ring is fixedly connected to the front side of the upper surface of the outer support arm.
[0012] In one feasible technical solution of the present invention, both the sliding ring and the fixed ring are semi-circular in shape, and rubber rings are provided on the inner surfaces of the sliding ring and the fixed ring.
[0013] In one feasible technical solution of the present invention, the ink cartridge is filled with red ink, and a sealing plug is provided on the upper surface of the ink cartridge.
[0014] In one feasible technical solution of the present invention, a limiting slide rail is fixedly connected to the upper surface of the connecting bracket, and a sliding measuring block is slidably connected to the upper surface of the limiting slide rail.
[0015] In one feasible technical solution of the present invention, electric push rods are provided at the four corners of the lower surface of the bone measuring frame.
[0016] In summary, the present invention has at least one of the following beneficial technical effects: In this invention, a bone measurement mechanism is used to measure bone growth length. A new trace paper strip is taken and flatly adhered to the upper surface of the marking plate. The leg of the person being measured is placed horizontally, with the thigh end against the inside of the fixed retaining ring and the lower leg end against the inside of the movable retaining ring. As the sliding retaining ring moves within the sliding groove, the sliding measuring block, rigidly connected to it, also slides linearly under the guidance of the limiting rod and the limiting slide rail. As the sliding measuring block moves, the scale pointer moves synchronously on the scale plate fixed to the inside of the connecting bracket. The operator can directly read the value indicated by the scale pointer, which is the current length of the bone. At the same time, the limiting plate, ink cylinder, and rotating ball fixed to the outside of the sliding measuring block also move together. When the sliding measuring block moves to its final position, the rotating ball is exactly above the trace paper strip on the marking plate. As the sliding measuring block moves, the rotating ball... A ball rolls on the trace paper tape, and red ink from the ink cartridge is evenly applied to the tape through the ball, leaving a length mark. After the measurement is completed, the operator records the precise reading displayed by the pointer on the scale plate. The trace paper tape with the red length mark is removed from the marking plate and can be archived along with the measurement date, patient information, etc. When the next measurement is performed, the above steps are repeated, and the new trace paper tape is placed side by side with the old trace paper tape for comparison. The amount of bone length growth can be seen intuitively and accurately. This dual recording method avoids the misreading, transcription errors or subjective doubts that may exist in pure digital recording, making the measurement results more intuitive and reliable. It is especially suitable for medical research or clinical diagnosis that requires long-term tracking and archiving. In this invention, through the set movable adjustment mechanism, after the operator manually moves the sliding ring to the approximate position, the micro motor is started. The micro motor begins to rotate, and its output end drives the winding column to rotate. The other end of the tightening rope is connected to the inner side of the sliding ring, so the tension is transmitted to the sliding ring, causing it to slide along the sliding groove towards the fixed ring until the leg of the person being measured is firmly clamped between the sliding ring and the fixed ring. During the measurement of bone length, the lateral flip arm can rotate horizontally at the connecting head to adjust the shooting angle of the camera around the bone. The upper ends of the longitudinal flip arm and the lateral flip arm are rotatably connected, allowing for adjustment of the pitch angle. This adjusts the height of the camera relative to the bone and the top / bottom angle, so as to record the bone shape, the position of the measurement point, and the measurement process from all angles. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the front three-dimensional structure of an embodiment of the present invention; Figure 2 This is a schematic diagram of the rear three-dimensional structure of an embodiment of the present invention; Figure 3 This is a schematic diagram of the bone measurement mechanism in an embodiment of the present invention; Figure 4 This is a schematic diagram of the skeleton measurement mechanism from another perspective in an embodiment of the present invention; Figure 5 This is a schematic diagram of the bone measurement mechanism from an obliquely upward perspective in an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the outer support arm in an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of the active adjustment mechanism in an embodiment of the present invention; Figure 8 This is an embodiment of the present invention. Figure 4 A magnified view of A in the middle.
[0019] Explanation of reference numerals in the attached figures: 1. Skeletal measuring frame; 2. Electric push rod; 3. Skeletal measuring mechanism; 301. Connecting bracket; 302. Limiting rod; 303. Sliding measuring block; 304. Sliding retaining ring; 305. Fixing retaining ring; 306. Scale plate; 307. Marking plate; 308. Trace paper tape; 309. Scale pointer; 310. Ink cartridge; 311. Rotating ball; 312. Outer support arm; 313. Sliding groove; 314. Limiting plate; 4. Mobility adjustment mechanism; 401. Connector; 402. Lateral flipping arm; 403. Longitudinal flipping arm; 404. Micro motor; 405. Tightening rope; 406. Winding column; 5. Camera; 6. Limiting slide rail; 7. Support plate. Detailed Implementation
[0020] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.
[0021] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.
[0022] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.
[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.
[0024] The following is in conjunction with the appendix Figure 1-8 The present invention will be described in further detail below.
[0025] Example 1: This invention discloses a bone growth measuring device, comprising: a bone measuring frame 1; a bone measuring mechanism 3; the bone measuring mechanism 3 is disposed on the upper surface of the bone measuring frame 1, and is used to leave a length mark while measuring the bone growth length; the bone measuring mechanism 3 includes a connecting bracket 301, a limiting rod 302, a sliding measuring block 303, a sliding retaining ring 304, a fixing retaining ring 305, a scale plate 306, a marking plate 307, a trace paper tape 308, a scale pointer 309, an ink cartridge 310, a rotating ball 311, an outer support arm 312, and a sliding... The moving groove 313, the limiting plate 314, and the number of connecting brackets 301 are set to two. The lower ends of the two connecting brackets 301 are fixedly connected to the left and right sides of the upper surface of the bone measuring frame 1. The front and rear sides of the upper surface of the two connecting brackets 301 are fixedly connected to the support plates 7. The middle of the two support plates 7 is rotatably connected to the limiting rod 302. The outer side of the limiting rod 302 is provided with a sliding measuring block 303. The outer side of the sliding measuring block 303 is fixedly connected to the limiting plate 314. The middle of the limiting plate 314 is longitudinally provided with an ink cylinder 310. The lower part of the ink cylinder 310 is embedded with a... A rotating ball 311 is mounted below a tracer tape 308. The lower surface of the tracer tape 308 is adhered to the upper surface of a marking plate 307, which is fixedly connected to the outside of a connecting bracket 301. A scale pointer 309 is fixedly connected to the inner side of a sliding measuring block 303, with its lower end positioned on the upper surface of a scale plate 306, which is fixedly connected to the inside of the connecting bracket 301. The inner side of the sliding measuring block 303 is connected to a sliding retaining ring 304, which has a fixed retaining ring 305 at its front. The lower end of ring 304 is located inside sliding groove 313, which is located inside outer support arm 312. A fixed retaining ring 305 is fixedly connected to the front side of the upper surface of outer support arm 312. Both sliding retaining ring 304 and fixed retaining ring 305 are semi-circular in shape, and rubber rings are provided on the inner surfaces of sliding retaining ring 304 and fixed retaining ring 305. Red ink is filled inside ink cylinder 310, and a sealing plug is provided on the upper surface of ink cylinder 310. A limit slide rail 6 is fixedly connected to the upper surface of connecting bracket 301, and a sliding measuring block 303 is slidably connected to the upper surface of limit slide rail 6.
[0026] Working principle: When using this device to measure bone growth length, take a new trace paper strip 308 and stick it flat on the upper surface of the marking plate 307. The subject's legs are placed horizontally, with the thigh resting against the inside of the fixed retaining ring 305 and the lower leg against the inside of the movable retaining ring. As the sliding retaining ring 304 moves within the sliding groove 313, the sliding measuring block 303, rigidly connected to it, slides linearly under the guidance of the limiting rod 302 and the limiting slide rail 6. As the sliding measuring block 303 moves, the scale pointer 309 moves synchronously on the scale plate 306 fixed inside the connecting bracket 301. The operator can directly read the value indicated by the scale pointer 309, which is the current length of the bone. Simultaneously, the limiting plate 314, ink cartridge 310, and rotating ball 311 fixed outside the sliding measuring block 303 also move together. When the sliding measuring block 303 reaches its final position, the rotating ball 311 is positioned directly above the trace paper tape 308 on the marking plate 307. As the sliding measuring block 303 moves, the rotating ball 311 rolls on the trace paper tape 308. The red ink in the ink cartridge 310 is evenly applied to the paper tape through the ball, leaving a length mark. After the measurement is completed, the operator records the precise reading displayed by the scale pointer 309 on the scale plate 306. The trace paper tape 308 with the red length mark is removed from the marking plate 307 and can be archived along with the measurement date, patient information, etc. When the next measurement is performed, the above steps are repeated, and the new trace paper tape 308 is placed side by side with the old trace paper tape 308 for comparison. The amount of bone length growth can be seen intuitively and accurately. This dual recording method avoids the misreading, transcription errors or subjective doubts that may exist in pure digital recording, making the measurement results more intuitive and reliable. It is especially suitable for medical research or clinical diagnosis that requires long-term tracking and archiving.
[0027] Example 2: In this embodiment, an adjustment mechanism 4 is provided on the outside of the bone measurement frame 1. The adjustment mechanism 4 includes a connector 401, a transverse flip arm 402, a longitudinal flip arm 403, a micro motor 404, a tightening rope 405, and a winding post 406. The connector 401 is fixedly connected to the outside of the connecting bracket 301. The transverse flip arm 402 is rotatably connected to the outside of the connector 401. The longitudinal flip arm 403 is rotatably connected to the upper side of the transverse flip arm 402. A camera 5 is provided on the inner side of the upper end of the longitudinal flip arm 403. The micro motor 404 is fixedly connected to the outer side of the lower end of the longitudinal flip arm 403. The output end of the micro motor 404 is driven to the winding post 406. The outer surface of the winding post 406 is wound with a tightening rope 405. The end of the tightening rope 405 away from the winding post 406 is connected to the inner side of the sliding retaining ring 304. Electric push rods 2 are provided at the four corners of the lower surface of the bone measurement frame 1. When the operator manually adjusts the position of the push rod, the tensioning rope 405 is adjusted to allow the adjustment of the frame. After the sliding ring 304 moves to its approximate position, the micro motor 404 is activated. The micro motor 404 begins to rotate, and its output end drives the winding column 406 to rotate. The other end of the tightening rope 405 is connected to the inside of the sliding ring 304, so the tension is transmitted to the sliding ring 304, causing it to slide along the sliding groove 313 towards the fixed ring 305 until the leg of the person being measured is firmly clamped between the sliding ring 304 and the fixed ring 305. During the measurement of bone length, the horizontal flip arm 402 can rotate horizontally on the connector 401 to adjust the shooting angle of the camera 5 around the bone. The vertical flip arm 403 is rotatably connected to the upper end of the horizontal flip arm 402, which can adjust the pitch angle and adjust the height of the camera 5 relative to the bone and the top / bottom angle, so as to record the shape of the bone, the position of the measurement point, and the measurement process from all angles.
[0028] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the application should be included within the protection scope of the present invention.
Claims
1. A bone growth measuring device, characterized in that: include: Skeletal measuring frame (1); A bone measurement mechanism (3) is provided on the upper surface of the bone measurement frame (1). The bone measurement mechanism (3) is used to leave a length mark while measuring the growth length of the bone. The bone measurement mechanism (3) includes a connecting bracket (301), a limiting rod (302), a sliding measuring block (303), a sliding retaining ring (304), a fixing retaining ring (305), a scale plate (306), a marking plate (307), a trace paper tape (308), a scale pointer (309), an ink cartridge (310), a rotating ball (311), an outer support arm (312), a sliding groove (313), and a limiting plate (314). The number of connecting brackets (301) is set to two, and the lower ends of the two connecting brackets (301) are fixedly connected to the bone measurement frame (1). On the left and right sides of the surface, support plates (7) are fixedly connected to the front and rear sides of the upper surface of the two connecting brackets (301). A limit rod (302) is rotatably connected between the front and rear support plates (7). A sliding measuring block (303) is provided through the outer side of the limit rod (302). A limit plate (314) is fixedly connected to the outer side of the sliding measuring block (303). An ink cylinder (310) is provided through the middle of the limit plate (314) longitudinally. A rotating ball (311) is embedded below the ink cylinder (310). A trace paper tape (308) is provided below the rotating ball (311). The lower surface of the trace paper tape (308) is adhered to the upper surface of the marking plate (307). The marking plate (307) is fixedly connected to the outer side of the connecting bracket (301).
2. The bone growth measuring device according to claim 1, characterized in that, A scale pointer (309) is fixedly connected to the inner side of the sliding measuring block (303). The lower end of the scale pointer (309) is set on the upper surface of the scale plate (306). The scale plate (306) is fixedly connected to the inner side of the connecting bracket (301). The inner side of the sliding measuring block (303) is connected to the sliding retaining ring (304). A fixed retaining ring (305) is provided on the front side of the sliding retaining ring (304).
3. A bone growth measuring device according to claim 1, characterized in that, The skeleton measuring frame (1) is provided with an adjustment mechanism (4) on the outside. The adjustment mechanism (4) includes a connector (401), a horizontal flip arm (402), a vertical flip arm (403), a micro motor (404), a tightening rope (405), and a winding column (406). The connector (401) is fixedly connected to the outside of the connecting bracket (301). The horizontal flip arm (402) is rotatably connected to the outside of the connector (401). The vertical flip arm (403) is rotatably connected to the upper side of the horizontal flip arm (402). A camera (5) is provided on the inner side of the upper end of the vertical flip arm (403).
4. A bone growth measuring device according to claim 3, characterized in that, A micro motor (404) is fixedly connected to the outer side of the lower end of the longitudinal tilting arm (403), and the output end of the micro motor (404) is connected to a winding column (406).
5. A bone growth measuring device according to claim 4, characterized in that, A tightening rope (405) is wound around the outer surface of the winding post (406), and one end of the tightening rope (405) away from the winding post (406) is connected to the inner side of the sliding snap ring (304).
6. A bone growth measuring device according to claim 1, characterized in that, The lower end of the sliding retaining ring (304) is located inside the sliding groove (313), which is located inside the outer support arm (312). A retaining ring (305) is fixedly connected to the front side of the upper surface of the outer support arm (312).
7. A bone growth measuring device according to claim 6, characterized in that, Both the sliding retaining ring (304) and the fixed retaining ring (305) are semi-circular in shape, and rubber rings are provided on the inner surfaces of the sliding retaining ring (304) and the fixed retaining ring (305).
8. A bone growth measuring device according to claim 1, characterized in that, The ink cartridge (310) is filled with red ink, and a sealing plug is provided on the upper surface of the ink cartridge (310).
9. A bone growth measuring device according to claim 1, characterized in that, The upper surface of the connecting bracket (301) is fixedly connected to a limiting slide rail (6), and a sliding measuring block (303) is slidably connected to the upper surface of the limiting slide rail (6).
10. A bone growth measuring device according to claim 1, characterized in that, The bone measuring frame (1) is equipped with electric push rods (2) at the four corners of its lower surface.