A device for measuring all aspects of a child's penis

Abstract

The application discloses a full-size measuring device for a child's penis, and relates to the technical field of medical auxiliary instruments. The device can accurately determine the effective compression critical point of the fat layer and deduct the thickness of the prepubic fat pad through synchronous acquisition of pressure and displacement and identification of a characteristic curve, thereby solving the problems of inaccurate positioning, large error and strong subjectivity in traditional manual measurement from the root, and improving the size measurement accuracy of the child's penis. The device is composed of a main bottom ring, a secondary bottom ring, a three-point control assembly and an overlapping flexible receiving assembly to form a stable and adjustable annular reference. The device has a simple and reliable structure and standardized operation, does not need to rely on professional experience and large ultrasonic equipment, reduces the use threshold and cost, and is convenient for popularization in primary units and clinics.

Description

Technical Field

[0001] This invention relates to the field of medical auxiliary device technology, specifically to a device for measuring the overall size of a child's penis. Background Technology

[0002] Measuring the size parameters of the penis in children is a primary means of assessing the development of the reproductive system in pediatric urology and endocrinology, especially for early screening, etiological diagnosis, and follow-up of treatment effects for developmental abnormalities such as micropenis and concealed penis. Concealed penis, a common penile developmental abnormality in children, is characterized by a short penis that is almost completely hidden within the prepubic soft tissue, but its actual length is comparable to that of children of the same age. Its diagnosis and assessment rely on accurate measurement data. Obese children, due to the accumulation of prepubic fat pads, further increase the difficulty of measurement, and inaccurate measurements can easily lead to misdiagnosis or delayed treatment. Furthermore, in clinical practice, penile size measurement in young children is prone to misinterpretation due to non-standard methods and differences in physician experience, causing difficulties in diagnosis and treatment. Currently, commonly used pediatric penile measurement methods are mainly divided into two categories: traditional manual measurement and imaging examination.

[0003] Traditional manual measurement is currently the most basic and commonly used assessment method in clinical practice. While its procedures are clearly defined, deviations can easily occur during execution. Penile length measurement should be performed at room temperature in a resting state. After the penis is stretched to its full extension without tension, a ruler or calipers is used to measure along the dorsal side of the penis, from the base of the penis at the pubic symphysis to the tip of the glans, excluding the foreskin. In the flaccid state, direct measurement is used. Penile diameter is usually measured 1 cm posterior to the coronal sulcus. Testicular size is often estimated by manual palpation combined with a ruler to roughly determine the volume. For obese children or those with concealed penises, the fat pad and surrounding tissue in front of the pubic symphysis should be pushed aside as much as possible during measurement to expose the true base of the penis and ensure accuracy. However, this procedure is highly dependent on the operator's experience and skill.

[0004] Compared to traditional manual measurements, imaging examinations can clearly display the internal structure of the penis and the morphology of the testes, providing more objective and accurate parameters such as penile length and testicular size. This compensates to some extent for the subjective limitations of manual measurements and is often used in cases where measurement results are disputed or where further clarification of development is needed. However, the application of ultrasound examinations is subject to many limitations. It requires specialized ultrasound equipment and specially trained operators, and the procedure is relatively complex, making it difficult to popularize in primary care clinics and community health institutions.

[0005] Based on the shortcomings of the existing technology, there is a clinical need for a comprehensive pediatric penile size measurement device that can overcome the problems of large errors in traditional manual measurement and high costs of imaging examinations. Summary of the Invention

[0006] To address the aforementioned problems in the existing technology, the present invention provides a device for measuring the overall size of a child's penis.

[0007] To achieve the above-mentioned technical objectives and effects, the present invention is implemented through the following technical solution: A device for measuring the overall size of a child's penis includes a reference part and an adjustment part controlled based on the reference part. The reference part includes a main bottom ring and a secondary bottom ring that moves relative to the axis of the main bottom ring. The adjustment parts on the main bottom ring and the adjustment parts on the secondary bottom ring are arranged facing each other. The adjustment unit includes a three-point control assembly, and overlapping toughness bearing assemblies are provided between the three-point control assemblies. The toughness bearing assemblies between the main bottom ring and the secondary bottom ring overlap each other. The main bottom ring is equipped with a pushing assembly with a probe head.

[0008] Preferably, the three-point control assembly includes a lower threaded rod and side threaded rods located on both sides of the lower threaded rod. The lower threaded rod is threadedly connected to the middle position of the main bottom ring, and side plates are fixedly connected to both sides of the main bottom ring. The side threaded rods are threadedly connected to the side plates. A lower limiting plate is fixedly connected to the lower threaded rod near the center of the main bottom ring, and a side limiting plate is fixedly connected to the side threaded rod near the center of the main bottom ring. The toughness bearing component includes a lower wing block and side wing blocks distributed on both sides of the lower wing block. The lower wing block is rotatably connected to the lower threaded rod and the lower limiting plate, and the side wing blocks are rotatably connected to the corresponding side threaded rod and the side limiting plate. A middle wing is fixedly connected to the side wing block near the lower wing block, and an outer wing and an inner wing are fixedly connected to the lower wing block near the side wing block. The middle wing block is slidably connected between the outer wing and the inner wing, and the middle wing is overlapped with the outer wing and the inner wing. The side wing block is fixedly connected to a side sliding cylinder on the side near the sub-bottom ring, and the lower wing block extends into a cylinder space on the side near the sub-bottom ring.

[0009] Preferably, the three-point control assembly further includes a side aileron block and a lower aileron block. The sub-bottom ring has the same lower threaded rod and side threaded rod structure as the main bottom ring. The lower threaded rod on the sub-bottom ring is rotatably connected to the lower aileron block near the center of the sub-bottom ring. The side threaded rod on the sub-bottom ring is rotatably connected to the side aileron block near the circular side of the sub-bottom ring. A middle aileron is fixedly connected to the lower aileron block near the side aileron block. An outer aileron and an inner aileron are fixedly connected to the side aileron block near the lower aileron block. The middle aileron is slidably connected between the outer aileron and the inner aileron. The middle aileron overlaps with the outer aileron and the inner aileron. A side slide plate is fixedly connected to the side wing block near the main bottom ring, and a middle slide plate is fixedly connected to the lower wing block near the main bottom ring; the side slide plate is slidably connected inside the side slide cylinder, and the middle slide plate is slidably connected inside the cylindrical space extending from the side wing block.

[0010] Preferably, the middle sub-wing extends towards the main bottom ring, and the outer and inner wings extend towards the sub-bottom ring. The middle sub-wing is slidably connected between the outer and inner wings, and the middle sub-wing overlaps with the outer and inner wings.

[0011] Preferably, the pushing assembly includes a fixed base, a top ring fixedly connected to the fixed base, the top ring and the main bottom ring forming an annular structure, a rotating frame fixedly connected to a first side of the top ring, a fixed shaft rotatably connected to the rotating frame on the side away from the top ring, the fixed shaft fixedly connected to a side plate on the first side, a fixed frame fixedly connected to a second side of the top ring, a locking post fixedly connected to the fixed frame on the side away from the top ring, a control handle fixedly connected to the second side plate, and a locking groove on the control handle engaging with the locking post.

[0012] Preferably, the fixed base has a groove in the middle, a slide rod is slidably connected in the groove, a lever is fixedly connected to the side of the slide rod near the sub-bottom ring, and a probe is fixedly connected to the end of the slide rod away from the lever.

[0013] A comprehensive pediatric penile size measurement system, the steps of which are based on the comprehensive pediatric penile size measurement device are as follows. S1. Device positioning and benchmark establishment: The main bottom ring, secondary bottom ring and tough support components of the measuring device are attached to the surface of the child's perineum to form a stable ring benchmark; the ball head of the probe lightly touches the surface of the prepubic fat layer as the initial zero point of the measurement.

[0014] S2. Synchronous acquisition of pressure and displacement: The pressure sensing unit on the probe head and the displacement acquisition unit on the pushing component are activated; the probe head is controlled to slowly and uniformly push forward along the axis to gently push the prepubic fat layer; the pressure sensing unit continuously acquires the pushing pressure data in real time, and the displacement acquisition unit synchronously records the corresponding pushing distance.

[0015] S3. Real-time generation of pressure and displacement characteristic curves: The data processing module integrated on the probe head constructs and displays pressure and displacement change curves based on the real-time collected pressure and displacement data; it utilizes the non-uniform compression characteristics of adipose tissue to identify characteristic segments in the curve where resistance increases with displacement.

[0016] S4. Determination of the effective compression critical point of the fat layer: The system compares the real-time pressure with the preset safe pressure threshold; when the pressure reaches the threshold and the slope of the curve increases significantly, the current position is determined to be: the effective compression critical point where the fat layer is pushed to near its limit but does not cause pain to the child; the system automatically locks the pressure value and pushing distance corresponding to this point.

[0017] S5. Calculation and compensation of the thickness of the prepubic fat layer: Based on the effective compression critical point, the data processing module calculates and deducts the residual thickness of the prepubic fat layer according to the characteristics of the pressure and displacement curves and the displacement distance, thereby eliminating the systematic error caused by the fat pad in the positioning of the penile root.

[0018] S6. Multi-parameter synchronous measurement and calculation: After the fat thickness calibration is completed, the device continues to perform full-dimensional measurement: Measure the stretched length of the penis and output the true length after fat compensation; Measure the flaccid length and depth of concealment of the penis.

[0019] S7. Final Data Output and Storage: The system integrates all calibrated parameters and outputs: the true extended length of the penis, flaccid length, and concealment depth; forming a traceable measurement record and completing a precise measurement process.

[0020] The beneficial effects of this invention are: A comprehensive pediatric penile size measurement device, compared to existing technologies, offers the following advantages: By simultaneously acquiring pressure and displacement data and identifying characteristic curves, it can accurately determine the effective compression critical point of the fat layer and deduct the thickness of the prepubic fat pad, fundamentally solving the problems of inaccurate positioning, large errors, and strong subjectivity in traditional manual measurements, thus improving the accuracy of pediatric penile size measurement; A stable and adjustable annular reference is constructed through a main base ring, a secondary base ring, a three-point control component, and an overlapping toughness support component, resulting in a simple, reliable, and standardized structure that eliminates the need for professional experience and large ultrasound equipment, lowering the barrier to entry and cost, and facilitating its widespread adoption in primary care and clinics; It is suitable for children of all ages from newborns to puberty, especially for special cases such as obesity, concealed penis, and micropenis, while simultaneously achieving integrated measurement of multiple parameters such as penile traction length, flaccid length, and concealment depth; Through a preset safe pressure threshold and a flexible probe structure, it effectively avoids excessive pressure causing discomfort to children, improving measurement compliance and providing an accurate measurement method for pediatric reproductive development assessment, abnormality screening, and follow-up treatment.

[0021] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the 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.

[0023] Figure 1 This is a schematic diagram of the overall structure of the pediatric penis all-around size measuring device according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structural connection of the main bottom ring according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the main bottom ring and side wing blocks according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the main bottom ring and top ring structure according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the top ring structure according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the probe head described in an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of the side wing block and the lower wing block according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the sub-bottom ring and side aileron blocks according to an embodiment of the present invention; Figure 9 This is a schematic diagram of the sub-bottom ring and lower aileron block according to an embodiment of the present invention.

[0024] The attached diagram lists the components represented by each number as follows: 1-Main bottom ring, 101-Lower threaded rod, 102-Lower limit plate, 103-Side plate, 104-Side threaded rod, 105-Side limit plate, 110-Fixed shaft, 111-Control handle, 112-Slot, 2-Top ring, 201-Rotating frame, 202-Fixed frame, 203-Card post, 210-Fixed seat, 2101-Slide groove, 211-Slide rod, 212-Pulley, 213-Probe head, 3-Side wing block, 301-Middle wing piece, 310-Lower wing block, 311-Outer wing piece, 312-Inner wing piece, 313-Side sliding cylinder, 4-Secondary bottom ring, 5-Side secondary wing block, 501-Outer secondary wing piece, 502-Inner secondary wing piece, 510-Lower secondary wing block, 511-Middle secondary wing piece, 512-Middle sliding piece, 513-Side sliding piece. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Example 1

[0027] like Figure 1-9 As shown The present invention provides a pediatric penis full-dimensional measurement device, comprising a reference part and an adjustment part controlled based on the reference part. The reference part includes a main bottom ring (1) and a secondary bottom ring (4) that moves relative to the axis of the main bottom ring (1). The adjustment parts on the main bottom ring (1) and the adjustment parts on the secondary bottom ring (4) are arranged facing each other. The adjustment unit includes a three-point control assembly, and overlapping toughness support assemblies are provided between the three-point control assemblies. The toughness support assemblies between the main bottom ring (1) and the secondary bottom ring (4) overlap each other. The main bottom ring (1) is provided with a pushing assembly with a probe head (213); The three-point control assembly includes a lower threaded rod (101) and side threaded rods (104) located on both sides of the lower threaded rod (101). The lower threaded rod (101) is threadedly connected to the middle position of the main bottom ring (1). Side plates (103) are fixedly connected to both sides of the main bottom ring (1). The side threaded rods (104) are threadedly connected to the side plates (103). The lower threaded rod (101) is fixedly connected to a lower limiting plate (102) on the side near the center of the main bottom ring (1), and the side threaded rod (104) is fixedly connected to a side limiting plate (105) on the side near the center of the main bottom ring (1). The toughness bearing component includes a lower wing block (310) and side wing blocks (3) distributed on both sides of the lower wing block (310). The lower wing block (310) is rotatably connected to the lower threaded rod (101) and the lower limiting plate (102), and the side wing blocks (3) are rotatably connected to the lower threaded rod (101) and the lower limiting plate (102). On the corresponding side threaded rod (104) and side limiting plate (105); the side wing block (3) is fixedly connected to the middle wing piece (301) in the direction near the lower wing block (310), the lower wing block (310) is fixedly connected to the outer wing piece (311) and the inner wing piece (312) in the direction near the side wing block (3), the middle wing block is slidably connected between the outer wing piece (311) and the inner wing piece (312), and the middle wing piece (301) is overlapped with the outer wing piece (311) and the inner wing piece (312); The side wing block (3) is fixedly connected to a side sliding cylinder (313) on the side near the sub-bottom ring (4), and the lower wing block (310) extends a cylinder space on the side near the sub-bottom ring (4); The three-point control assembly also includes a side aileron block (5) and a lower aileron block (510). The sub-bottom ring (4) has the same lower threaded rod (101) and side threaded rod (104) structure as the main bottom ring (1). The lower threaded rod (101) on the sub-bottom ring (4) is rotatably connected to the lower aileron block (510) on the side near the center of the sub-bottom ring (4). The side threaded rod (104) on the sub-bottom ring (4) is rotatably connected to the side aileron block (5) on the side near the circular side of the sub-bottom ring (4). The lower aileron block (510) is fixedly connected to a middle aileron (511) on the side near the side aileron block (5), and the side aileron block (5) is fixedly connected to an outer aileron (501) and an inner aileron (502) on the side near the lower aileron block (510). The middle aileron (511) is slidably connected between the outer aileron (501) and the inner aileron (502). The middle aileron (511) is overlapped with the outer aileron (501) and the inner aileron (502). The side wing block (5) is fixedly connected to a side sliding plate (513) on the side near the main bottom ring (1), and the lower wing block (510) is fixedly connected to a middle sliding plate (512) on the side near the main bottom ring (1); the side sliding plate (513) is slidably connected inside the side sliding cylinder (313), and the middle sliding plate (512) is slidably connected inside the cylindrical space extending from the side wing block (3); The middle sub-wing (511) extends toward the main bottom ring (1), the outer wing (311) and the inner wing (312) extend toward the sub-bottom ring (4), the middle sub-wing (511) is slidably connected between the outer wing (311) and the inner wing (312), and the middle sub-wing (511) overlaps with the outer wing (311) and the inner wing (312); The pushing assembly includes a fixed base (210), which is fixedly connected to a top ring (2). The top ring (2) and the main bottom ring (1) form an annular structure. A rotating frame (201) is fixedly connected to the first side of the top ring (2). A fixed shaft (110) is rotatably connected to the side of the rotating frame (201) away from the top ring (2). The fixed shaft (110) is fixedly connected to the side plate (103) on the first side. A fixed frame (202) is fixedly connected to the second side of the top ring (2). A locking post (203) is fixedly connected to the side of the fixed frame (202) away from the top ring (2). A control handle (111) is fixedly connected to the side plate (103) on the second side. A slot (112) is opened on the control handle (111) to engage with the locking post (203). The fixed base (210) has a groove (2101) in the middle, and a slide rod (211) is slidably connected in the groove (2101). A lever (212) is fixedly connected to the side of the slide rod (211) near the sub-bottom ring (4), and a probe (213) is fixedly connected to the end of the slide rod (211) away from the lever (212).

[0028] Example 2

[0029] A comprehensive pediatric penile size measurement system, the steps of which are based on the comprehensive pediatric penile size measurement device are as follows. S1. Device positioning and benchmark establishment: The main bottom ring (1), the secondary bottom ring (4) and the tough supporting component of the measuring device are attached to the perineal surface of the child to form a stable ring benchmark; the ball head component of the probe (213) is lightly touched to the surface of the prepubic fat layer as the initial zero point of the measurement.

[0030] S2. Synchronous acquisition of pressure and displacement: Start the pressure sensing unit set on the probe (213) and the displacement acquisition unit set on the pushing component; control the probe (213) to slowly and uniformly push forward along the axis to flexibly push the prepubic fat layer; the pressure sensing unit continuously acquires the pushing pressure data in real time, and the displacement acquisition unit synchronously records the corresponding pushing distance.

[0031] S3. Real-time generation of pressure and displacement characteristic curves: The data processing module integrated on the probe (213) constructs and displays pressure and displacement change curves based on the real-time collected pressure and displacement data; and uses the non-uniform compression characteristics of adipose tissue to identify the characteristic segments in the curve where the resistance increases with the amount of displacement.

[0032] S4. Determination of the effective compression critical point of the fat layer: The system compares the real-time pressure with the preset safe pressure threshold; when the pressure reaches the threshold and the slope of the curve increases significantly, the current position is determined to be: the effective compression critical point where the fat layer is pushed to near its limit but does not cause pain to the child; the system automatically locks the pressure value and pushing distance corresponding to this point.

[0033] S5. Calculation and compensation of the thickness of the prepubic fat layer: Based on the effective compression critical point, the data processing module calculates and deducts the residual thickness of the prepubic fat layer according to the characteristics of the pressure and displacement curves and the displacement distance, thereby eliminating the systematic error caused by the fat pad in the positioning of the penile root.

[0034] S6. Multi-parameter synchronous measurement and calculation: After the fat thickness calibration is completed, the device continues to perform full-dimensional measurement: Measure the stretched length of the penis and output the true length after fat compensation; Measure the flaccid length and depth of concealment of the penis.

[0035] S7. Final Data Output and Storage: The system integrates all calibrated parameters and outputs: the true extended length of the penis, flaccid length, and concealment depth; forming a traceable measurement record and completing a precise measurement process.

[0036] In summary, the present invention provides a comprehensive pediatric penile size measurement device, which, compared with the prior art, has the following advantages: by synchronously collecting pressure and displacement and identifying characteristic curves, it can accurately determine the effective compression critical point of the fat layer and deduct the thickness of the prepubic fat pad, fundamentally solving the problems of inaccurate positioning, large errors, and strong subjectivity in traditional manual measurement, thus improving the accuracy of pediatric penile size measurement; by constructing a stable and adjustable ring reference through the main bottom ring (1), the secondary bottom ring (4), the three-point control component, and the overlapping toughness support component, the structure is simple and reliable, the operation is standardized, and there is no need to rely on professional experience and large ultrasound equipment, reducing the threshold and cost of use, and facilitating its popularization in primary care and outpatient clinics; it is suitable for children of all ages from newborns to puberty, especially for special cases such as obesity, concealed penis, and micropenis, and can simultaneously achieve integrated measurement of multiple parameters such as penile traction length, flaccid length, and concealment depth; by setting a safe pressure threshold and a flexible probe head (213) structure, it effectively avoids excessive pressure causing discomfort to children, improves measurement compliance, and provides an accurate measurement method for pediatric reproductive development assessment, abnormal screening, and follow-up treatment.

[0037] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0038] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A device for measuring the overall size of a child's penis, characterized in that: It includes a reference section and an adjustment section for control based on the reference section. The reference section includes a main bottom ring and a secondary bottom ring that moves relative to the axis of the main bottom ring. The adjustment sections on the main bottom ring and the secondary bottom ring are arranged facing each other. The adjustment unit includes a three-point control assembly, and overlapping toughness bearing assemblies are provided between the three-point control assemblies. The toughness bearing assemblies between the main bottom ring and the secondary bottom ring overlap each other. The main bottom ring is equipped with a pushing assembly with a probe head.

2. The pediatric penis all-around size measuring device as described in claim 1, characterized in that: The three-point control assembly includes a lower threaded rod and side threaded rods located on both sides of the lower threaded rod. The lower threaded rod is threadedly connected to the middle position of the main bottom ring. Side plates are fixedly connected to both sides of the main bottom ring, and the side threaded rods are threadedly connected to the side plates. A lower limiting plate is fixedly connected to the lower threaded rod near the center of the main bottom ring, and a side limiting plate is fixedly connected to the side threaded rod near the center of the main bottom ring. The toughness bearing component includes a lower wing block and side wing blocks distributed on both sides of the lower wing block. The lower wing block is rotatably connected to the lower threaded rod and the lower limiting plate, and the side wing blocks are rotatably connected to the corresponding side threaded rod and the side limiting plate. A middle wing is fixedly connected to the side wing block near the lower wing block, and an outer wing and an inner wing are fixedly connected to the lower wing block near the side wing block. The middle wing block is slidably connected between the outer wing and the inner wing, and the middle wing is overlapped with the outer wing and the inner wing. The side wing block is fixedly connected to a side sliding cylinder on the side near the sub-bottom ring, and the lower wing block extends into a cylinder space on the side near the sub-bottom ring.

3. The pediatric penis all-around size measuring device as described in claim 2, characterized in that: The three-point control assembly also includes a side aileron block and a lower aileron block. The sub-bottom ring has the same lower threaded rod and side threaded rod structure as the main bottom ring. The lower threaded rod on the sub-bottom ring is rotatably connected to the lower aileron block near the center of the sub-bottom ring. The side threaded rod on the sub-bottom ring is rotatably connected to the side aileron block near the circular side of the sub-bottom ring. The lower aileron block is fixedly connected to the middle aileron plate near the side aileron block. The side aileron block is fixedly connected to the outer aileron plate and the inner aileron plate near the lower aileron block. The middle aileron plate is slidably connected between the outer aileron plate and the inner aileron plate. The middle aileron plate overlaps with the outer aileron plate and the inner aileron plate. A side slide plate is fixedly connected to the side wing block near the main bottom ring, and a middle slide plate is fixedly connected to the lower wing block near the main bottom ring; the side slide plate is slidably connected inside the side slide cylinder, and the middle slide plate is slidably connected inside the cylindrical space extending from the side wing block.

4. The pediatric penis all-around size measuring device as described in claim 3, characterized in that: The middle sub-wing extends towards the main bottom ring, while the outer and inner winglets extend towards the sub-bottom ring. The middle sub-wing is slidably connected between the outer and inner winglets, and the middle sub-wing is overlapped with the outer and inner winglets.

5. The pediatric penis all-around size measuring device as described in claim 4, characterized in that: The pushing assembly includes a fixed base, a top ring fixedly connected to the fixed base, the top ring and the main bottom ring forming an annular structure, a rotating frame fixedly connected to a first side of the top ring, a fixed shaft rotatably connected to the rotating frame on the side away from the top ring, the fixed shaft fixedly connected to a side plate on the first side, a fixed frame fixedly connected to a second side of the top ring, a locking post fixedly connected to the fixed frame on the side away from the top ring, a control handle fixedly connected to the second side plate, the control handle having a slot for engaging with the locking post.

6. The pediatric penis all-around size measuring device as described in claim 5, characterized in that: The fixed base has a groove in the middle, and a sliding rod is slidably connected in the groove. A lever is fixedly connected to the side of the sliding rod near the sub-bottom ring, and a probe is fixedly connected to the end of the sliding rod away from the lever.

7. A pediatric penile circumference measurement system based on a pediatric penile circumference measurement device, characterized in that: S1. Device positioning and benchmark establishment: The main bottom ring, secondary bottom ring and tough support components of the measuring device are attached to the surface of the child's perineum to form a stable ring benchmark; the ball head of the probe lightly touches the surface of the prepubic fat layer as the initial zero point of the measurement. S2. Synchronous acquisition of pressure and displacement: The pressure sensing unit on the probe head and the displacement acquisition unit on the pushing component are activated; the probe head is controlled to slowly and uniformly push forward along the axis to gently push the prepubic fat layer; the pressure sensing unit continuously acquires the pushing pressure data in real time, and the displacement acquisition unit synchronously records the corresponding pushing distance. S3. Real-time generation of pressure and displacement characteristic curves: The data processing module integrated on the probe head constructs and displays pressure and displacement change curves based on the real-time collected pressure and displacement data; it also utilizes the non-uniform compression characteristics of adipose tissue to identify characteristic segments in the curve where resistance increases with the amount of displacement. S4. Determination of the effective compression critical point of the fat layer: The system compares the real-time pressure with the preset safe pressure threshold; when the pressure reaches the threshold and the slope of the curve increases significantly, the current position is determined to be: the effective compression critical point where the fat layer is pushed to near its limit but does not cause pain to the child. The system automatically locks the pressure value and displacement distance corresponding to that point; S5. Calculation and compensation of the thickness of the prepubic fat layer: Based on the effective compression critical point, the data processing module calculates and deducts the residual thickness of the prepubic fat layer according to the characteristics of the pressure and displacement curves and the displacement distance, thereby eliminating the systematic error caused by the fat pad in the positioning of the penile root. S6. Multi-parameter synchronous measurement and calculation: After the fat thickness calibration is completed, the device continues to perform full-dimensional measurement: Measure the stretched length of the penis and output the true length after fat compensation; Measure the flaccid length and depth of concealment of the penis; S7. Final Data Output and Storage: The system integrates all calibrated parameters and outputs: the true extended length of the penis, flaccid length, and concealment depth; forming a traceable measurement record and completing a precise measurement process.

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