Limb dimension measuring device

Abstract

The utility model discloses a limb dimension measuring device which comprises a measuring scale which is a flexible scale and is provided with measuring scales arranged along the length direction of the measuring scale; the positioning ruler is connected with the measuring ruler, the positioning ruler comprises two positioning ruler sections, positioning scales are arranged on the two positioning ruler sections in the length direction of the positioning ruler sections, and when the limb dimension measuring device is in a measuring state, the two positioning ruler sections are located on the two sides of the measuring ruler in the width direction respectively and are perpendicular to the measuring ruler; and the positioning scales on the two positioning ruler sections are symmetrically arranged relative to the center line of the measuring ruler extending along the length direction. According to the limb dimension measuring device provided by the utility model, the measuring scale can be accurately positioned to the limb measuring position and the limb circumference can be measured, so that the measuring error can be effectively reduced, and the measuring precision can be effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of medical assistive device technology, and in particular to a limb dimension measurement device. Background Technology

[0002] Peripherally inserted central venous catheterization (PECC) refers to the insertion of a central venous catheter through a peripheral vein, with the catheter tip located in the superior or inferior vena cava. It reduces the pain associated with repeated peripheral venous punctures in children requiring long-term intravenous infusions. The rapid blood flow in a central venous catheter ensures timely administration of various medications and parenteral nutrition solutions. Furthermore, its safe and reliable use has led to its widespread clinical application.

[0003] In existing techniques, nursing staff need to measure the limb circumference of the child when performing PICC puncture or catheter maintenance. If the puncture limb is a lower limb, we need to measure the limb circumference at the midpoint between the knee joint and the groin, marking the point with a pen before measurement. However, the markings tend to disappear, so the above steps must be repeated every time the limb circumference is measured, making it impossible to ensure that the measurement is taken at the same location, resulting in a large error. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention provides a limb dimension measuring device that can accurately position a measuring ruler at the limb measurement location and measure limb circumference, thereby effectively reducing measurement errors and improving measurement accuracy.

[0005] The limb dimension measuring device according to this utility model includes: a measuring ruler, which is a flexible measuring tape, and measuring scales arranged along the length direction of the measuring ruler; and a positioning ruler connected to the measuring ruler, which includes two positioning ruler segments, each of which has positioning scales arranged along the length direction of the positioning ruler segment. When the limb dimension measuring device is in the measuring state, the two positioning ruler segments are respectively located on both sides of the measuring ruler in the width direction and are arranged perpendicular to the measuring ruler. Furthermore, the positioning scales on the two positioning ruler segments are symmetrically arranged about the center line extending along the length direction of the measuring ruler.

[0006] According to the limb dimension measuring device of this utility model, by setting a measuring ruler and a positioning ruler in the limb dimension measuring device, the measuring ruler is a flexible ruler with measuring scales arranged along the length direction of the measuring ruler. The positioning ruler is connected to the measuring ruler and includes two positioning ruler segments, each with positioning scales arranged along the length direction of the positioning ruler segment. In the measurement state, the two positioning ruler segments are located on both sides of the measuring ruler in the width direction and are arranged perpendicular to the measuring ruler. The positioning scales on the two positioning ruler segments are symmetrically arranged about the center line of the measuring ruler extending along the length direction. This can accurately locate the limb measurement position and measure the limb circumference, thereby effectively reducing measurement errors and improving measurement accuracy.

[0007] In some embodiments, the limb dimension measuring device further includes a connector, wherein the measuring ruler and the two positioning ruler segments are rotatably disposed on the connector about a first axis, and the limb dimension measuring device also has a storage state, wherein in the storage state, the measuring ruler and the two positioning ruler segments are stacked in the thickness direction.

[0008] In some embodiments, the 0 mark of the positioning scale on both positioning segments passes through the first axis; and / or, the 0 mark of the measurement scale passes through the first axis.

[0009] In some embodiments, the connector includes: a shaft portion and two flanges, the shaft portion extending along the first axis, the two flanges being formed at the axial ends of the shaft portion and protruding outwards radially along the shaft portion, and the measuring scale and the two positioning scale segments being sleeved on the shaft portion and located between the two flanges.

[0010] In some embodiments, the limb dimension measuring device further includes an indicator fixed to one end of the positioning scale near the axis, the indicator being perpendicular to the positioning scale and used to indicate the measurement direction of the measuring scale.

[0011] In some embodiments, the measuring ruler has a locking hole that extends through the measuring ruler along its thickness direction and along its length direction. In the width direction of the measuring ruler, the width of the flange is greater than the width of the locking hole, and the flange is configured to pass through the locking hole along the thickness direction of the measuring ruler.

[0012] In some embodiments, the measuring scale is provided on both sides of the measuring ruler in the width direction of the caliper hole.

[0013] In some embodiments, in the extension direction of the first axis, both of the positioning scale segments are arranged on the side of the measuring scale opposite to the measuring graduations.

[0014] In some embodiments, both positioning ruler segments are flexible rulers.

[0015] In some embodiments, the measuring ruler is a silicone part; and / or, both of the positioning ruler segments are silicone parts.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a limb dimension measuring device according to an embodiment of the present utility model;

[0018] Figure 2 yes Figure 1 A magnified view of point A, indicated by the center circle;

[0019] Figure 3 This is a schematic diagram of a measuring ruler according to an embodiment of the present utility model;

[0020] Figure 4 This is a schematic diagram of the positioning ruler segment according to an embodiment of the present utility model;

[0021] Figure 5 This is a schematic diagram of the connector according to an embodiment of the present utility model.

[0022] Figure label:

[0023] 100. Limb dimension measurement device;

[0024] 10. Measuring ruler; 101. Clamping hole; 11. Measuring scale;

[0025] 20. Positioning ruler; 201. Connecting hole; 21. Positioning ruler segment; 211. Positioning scale;

[0026] 30. Connector; 31. Flange; 31a. First flange; 31b. Second flange; 32. Shaft portion;

[0027] 40. Indicator. Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0029] The following is for reference. Figures 1-5This invention describes a limb dimension measuring device 100 according to an embodiment of the present invention.

[0030] like Figures 1-4 As shown, the limb dimension measuring device 100 according to an embodiment of the present invention includes: a measuring ruler 10 and a positioning ruler 20.

[0031] The measuring ruler 10 is a flexible measuring tape, and the measuring ruler 10 has measuring scales 11 arranged along the length direction of the measuring ruler 10. The positioning ruler 20 is connected to the measuring ruler 10. The positioning ruler 20 includes two positioning ruler 20 segments. Each of the two positioning ruler 20 segments has positioning scales 211 arranged along the length direction of the positioning ruler 20 segment. When the limb dimension measuring device 100 is in the measuring state, the two positioning ruler 20 segments are located on both sides of the measuring ruler 10 in the width direction and are arranged perpendicular to the measuring ruler 10. The positioning scales 211 on the two positioning ruler 20 segments are symmetrically arranged about the center line extending along the length direction of the measuring ruler 10.

[0032] In a specific example, such as Figures 1-3 As shown, the measuring ruler 10 can measure around a limb. The measuring ruler 10 is marked with measuring graduations 11 arranged along its length, facilitating the reading of specific dimensions. Furthermore, the numerical range of the measuring graduations 11 on the measuring ruler 10 is from 0 cm to 20 cm, and the smallest graduation of the measuring scale 11 is subdivided in mm, for example... Figure 2 As shown, there are 10 mm graduations between the measurement scale 11 with a value of 1 cm and the measurement scale 11 with a value of 2 cm. Furthermore, the measuring ruler 10 has a width of 1 cm and a thickness of 1.5 mm.

[0033] In a specific example, such as Figure 1 and Figure 4 As shown, the positioning ruler 20 helps medical staff accurately locate the position of the child's limb to be measured. The positioning ruler 20 includes two positioning ruler 20 segments, each with positioning scales 211 arranged along its length. Furthermore, the numerical range of each positioning scale 211 on each positioning ruler 20 segment is from 0cm to 10cm, and the smallest division of the positioning ruler 20 segment is subdivided in mm. For example... Figure 2 As shown, there are 10 mm graduations between the value of 1 cm and the value of 2 cm on the positioning scale 211. Furthermore, the width of each of the two positioning scale segments 20 is 1 cm, and the thickness is 1.5 mm.

[0034] In this embodiment, when medical staff perform PICC puncture or catheter maintenance on a child, they need to measure the child's limb circumference. If the punctured limb is the lower limb, the medical staff need to measure the limb circumference at the midpoint between the child's knee joint and groin. At this time, the limb dimension measuring device 100 is placed in the measuring state. That is, the two positioning scales 20 segments are located on both sides of the measuring scale 10 in the width direction and are arranged perpendicular to the measuring scale 10. The positioning scales 211 on the two positioning scales 20 segments are arranged symmetrically about the center line extending along the length direction of the measuring scale 10.

[0035] First, medical staff place the positioning ruler 20 along the length of the child's thigh. Then, by visual inspection, they move the center of symmetry of the two positioning scales 211 on the positioning ruler 20 to near the midpoint between the child's knee joint and groin. Next, by adjusting the position of the positioning ruler 20 along the length of the child's thigh, they ensure that the distance between the child's knee joint and the location where the limb circumference needs to be measured, and the distance between the child's groin and the location where the limb circumference needs to be measured, are consistent. This allows for precise positioning of the measuring ruler 10 at the desired location. Then, the measuring ruler 10 is placed around the child's limb at the desired location, and the measurement scale 11 on the measuring ruler 10 is accurately read to obtain the limb circumference at the midpoint between the child's knee joint and groin.

[0036] According to the embodiment of the present invention, the limb dimension measuring device 100 is provided with a measuring ruler 10 and a positioning ruler 20. The measuring ruler 10 is a flexible ruler with measuring scales 11 arranged along the length direction of the measuring ruler 10. The positioning ruler 20 is connected to the measuring ruler 10 and includes two positioning ruler 20 segments. Each of the two positioning ruler 20 segments has positioning scales 211 arranged along the length direction of the positioning ruler 20 segment. When the limb dimension measuring device 100 is in the measuring state, the two positioning ruler 20 segments are located on both sides of the measuring ruler 10 in the width direction and are arranged perpendicular to the measuring ruler 10. The positioning scales 211 on the two positioning ruler 20 segments are symmetrically arranged about the center line of the measuring ruler 10 extending along the length direction. This allows the measuring ruler 10 to be accurately positioned at the limb measurement position and the limb circumference to be measured, thereby effectively reducing measurement errors and improving measurement accuracy.

[0037] In one embodiment of this utility model, such as Figure 1 and Figure 2 As shown, the limb dimension measuring device 100 also includes: a connector 30, a measuring ruler 10 and two positioning rulers 20 segments are rotatably mounted on the connector 30 around a first axis, and the dimension measuring device also has a storage state, in which the measuring ruler 10 and the two positioning rulers 20 segments are stacked in the thickness direction.

[0038] It should be noted that the first axis is perpendicular to the plane containing the measuring ruler 10 and the two positioning rulers 20, and the segments of the measuring ruler 10 and the two positioning rulers 20 are rotatably mounted on the connecting member 30 around the first axis. That is to say, as... Figure 1 As shown, both the measuring ruler 10 and the two positioning rulers 20 can rotate clockwise or counterclockwise around the first axis. Furthermore, the connector 30 can be made of silicone, which makes it soft and comfortable, thus preventing scratches to the child.

[0039] When medical staff need to use the limb dimension measuring device 100, they can rotate the measuring ruler 10 and the two positioning ruler segments 20 so that the two positioning ruler segments 20 are located on both sides of the measuring ruler 10 in the width direction and are arranged perpendicular to the measuring ruler 10, as shown below. Figure 1 As shown, this enables the limb dimension measuring device 100 to be in a measuring state, thereby enabling the location of the child's limb measurement position and the measurement of the child's limb circumference.

[0040] When medical staff need to carry or store the limb dimension measuring device 100, they can rotate the measuring ruler 10 and the two positioning ruler segments 20 so that the measuring ruler 10 and the two positioning ruler segments 20 are stacked in the thickness direction. This allows the limb dimension measuring device 100 to be stored in a stowed state, which facilitates the carrying and storage of the limb dimension measuring device 100.

[0041] In this embodiment, a connector 30 is provided in the limb dimension measuring device 100. The measuring ruler 10 and two positioning rulers 20 are rotatably mounted on the connector 30 around a first axis. The limb dimension measuring device 100 also has a storage state. In the storage state, the measuring ruler 10 and the two positioning rulers 20 are stacked in the thickness direction, which facilitates the switching of the limb dimension measuring device 100 between the measuring state and the storage state, thereby facilitating the operation of medical staff. In addition, when the limb dimension measuring device 100 is in the storage state, it is easy to carry and store.

[0042] In one embodiment of this utility model, such as Figure 1 and Figure 2 As shown, the 0 mark of the positioning scale 211 on both positioning scales 20 passes through the first axis; and / or, the 0 mark of the measuring scale 11 passes through the first axis.

[0043] For example, the zero mark of the positioning scale 211 on both positioning scale segments 20 passes through the first axis; another example is that the zero mark of the measuring scale 11 passes through the first axis; yet another example is that the zero mark of the positioning scale 211 on both positioning scale segments 20 passes through the first axis and the zero mark of the measuring scale 11 also passes through the first axis.

[0044] In a specific example, such as Figure 1 and Figure 2 As shown, the zero mark of the positioning scale 211 on both positioning scale segments 20 passes through the first axis, and the zero mark of the measuring scale 11 also passes through the first axis. That is, when the two positioning scale segments 20 are unfolded and perpendicular to the measuring scale 10, the zero mark of the positioning scale 211 on both positioning scale segments 20 is exactly located on the first axis, and the zero mark of the measuring scale 11 on the measuring scale 10 is also exactly located on the first axis.

[0045] When locating the position where the limb circumference of the child needs to be measured, the medical staff adjusts the position of the positioning ruler 20 along the length of the child's thigh so that the value of the positioning scale 211 of the positioning ruler 20 corresponding to the child's knee joint is consistent with the value of the positioning scale 211 of the positioning ruler 20 corresponding to the child's groin. In this way, the measuring ruler 10 can be accurately and quickly positioned at the position where the limb circumference of the child needs to be measured.

[0046] After the medical staff positions the measuring ruler 10 at the location where the child's limb circumference needs to be measured, they can intuitively and quickly identify the starting point of the measurement. After wrapping the measuring ruler 10 around the limb at the location where the limb circumference needs to be measured, the medical staff can obtain the value of the child's limb circumference by directly reading the measurement scale 11 on the measuring ruler 10.

[0047] This embodiment sets the 0-degree line of the positioning scale 211 on both segments of the two positioning rulers 20 to pass through the first axis, which makes it easier for medical staff to quickly find the center of symmetry of the positioning scale 211 on the two segments of the positioning rulers 20. It also makes it easier for medical staff to adjust the positioning rulers 20 and read the positioning scale 211 on the segments of the positioning rulers 20, thereby effectively simplifying the positioning process and reducing the possibility of misreading, thus effectively improving the positioning efficiency of the positioning rulers 20. By setting the 0-degree line of the measuring scale 11 to pass through the first axis, it makes it easier for medical staff to quickly identify the measurement starting point of the measuring ruler 10, and also makes it easier for medical staff to read the measuring scale 11 on the measuring ruler 10, thereby effectively simplifying the measurement process and reducing the possibility of misreading, thus effectively improving the measurement efficiency of the measuring ruler 10.

[0048] In one embodiment of this utility model, such as Figure 1 , Figure 2 and Figure 5 As shown, the connector 30 includes a shaft portion 32 and two flanges 31. The shaft portion 32 extends along a first axis, and the two flanges 31 are respectively formed at both ends of the shaft portion 32 and protrude outward along the radial direction of the shaft portion 32. The measuring ruler 10 and the two positioning rulers 20 are both sleeved on the shaft portion 32 and located between the two flanges 31.

[0049] For example, the flanges 31 at both ends of the shaft 32 can be integrally formed with the shaft 32, which can effectively improve the structural strength of the connection between the flanges 31 and the shaft 32, thereby effectively ensuring the reliability of the connection; or, the flanges 31 at both ends of the shaft 32 can be detachably connected with the shaft 32, which can facilitate the maintenance of the connector 30, thereby effectively improving the maintenance efficiency of the connector 30.

[0050] In a specific example, such as Figure 1 , Figure 2 and Figure 5 As shown, the flanges 31 at both ends of the shaft portion 32 are integrally formed with the shaft portion 32. The flanges 31 at both ends of the shaft portion 32 are respectively a first flange 31a and a second flange 31b. The first flange 31a is located on the front side of the second flange 31b. Further, the shape of the flange 31 can be circular. The ends of the two positioning ruler segments 20 and the end of the measuring ruler 10 are all located between the first flange 31a and the second flange 31b, and the two positioning ruler segments 20 and the measuring ruler 10 can rotate relative to the connecting member 30 around the first axis.

[0051] In this embodiment, by providing a shaft portion 32 and two flanges 31 in the connector 30, the shaft portion 32 extends along the first axis, and the two flanges 31 are respectively formed at both ends of the axial direction of the shaft portion 32 and protrude outward along the radial direction of the shaft portion 32. The measuring ruler 10 and the two positioning rulers 20 segments are all sleeved on the shaft portion 32 and located between the two flanges 31. This can effectively ensure the reliability of the connection between the connector 30 and the two positioning rulers 20 segments and the measuring ruler 10. Moreover, the connector 30 has a simple structure and is easy to manufacture and process, thereby effectively reducing costs.

[0052] In one embodiment of this utility model, such as Figure 1 , Figure 2 and Figure 4 As shown, the limb dimension measuring device 100 also includes an indicator 40, which is fixed to one end of the positioning ruler 20 near the shaft 32. The indicator 40 is set perpendicular to the positioning ruler 20 and is used to indicate the measurement direction of the measuring ruler 10.

[0053] In a specific example, such as Figure 4 As shown, the indicator 40 is fixed to the lower end of the positioning ruler 20 segment and perpendicular to the positioning ruler 20 segment. Further, the indicator 40 can be an indicator arrow, and there can be two indicator arrows arranged symmetrically on the left and right. When medical personnel need to deploy the limb dimension measuring device 100, the measuring ruler 10 can be rotated around the first axis to the direction indicated by the indicator arrow. Regardless of whether the measuring ruler 10 is located to the left or right of the positioning ruler 20, the indicator arrow will ensure that the measuring ruler 10 is perpendicular to the positioning ruler 20. This simplifies the operation process and ensures the perpendicularity of the measuring ruler 10 to the positioning ruler 20.

[0054] In this embodiment, an indicator 40 is provided in the limb dimension measuring device 100. The indicator 40 is fixed to one end of the positioning ruler 20 near the shaft 32 and is set perpendicular to the positioning ruler 20. It is used to indicate the measurement direction of the measuring ruler 10, which makes it easier for medical staff to rotate the measuring ruler 10 around the first axis to a position perpendicular to the positioning ruler 20, thereby effectively improving the convenience of operation. In addition, it can also ensure the perpendicularity of the measuring ruler 10 and the positioning ruler 20, thereby effectively improving the accuracy of the measurement results.

[0055] In one embodiment of this utility model, such as Figures 1-4 As shown, a clasp 101 is formed on the measuring ruler 10, which extends through the measuring ruler 10 along the thickness direction of the measuring ruler 10. The clasp 101 extends along the length direction of the measuring ruler 10. In the width direction of the measuring ruler 10, the width of the flange 31 is greater than the width of the clasp 101, and the flange 31 is configured to pass through the clasp 101 along the thickness direction of the measuring ruler 10.

[0056] It should be noted that the size of the clasp 101 in the width direction of the measuring ruler 10 is greater than or equal to 2 mm and less than or equal to 3 mm. For example, the size of the clasp 101 in the width direction of the measuring ruler 10 can be 2 mm, 2.2 mm, 2.4 mm, 2.6 mm, 2.8 mm and 3 mm.

[0057] In a specific example, such as Figure 4 As shown, one end of the positioning ruler 20 segment is provided with a connecting hole 201 that penetrates the positioning ruler 20 segment along its thickness direction. Further, the connecting hole 201 is a circular hole, with the first axis passing through the center of the circular hole. The shaft portion 32 of the connector 30 is disposed within the connecting hole 201. The first flange 31a abuts against the measuring ruler 10, and the second flange 31b abuts against the positioning ruler 20 segment. The connector 30 can pass through the connecting holes 201 of the two positioning ruler 20 segments and the locking hole 101 of the measuring ruler 10 to rotatably connect the two positioning ruler 20 segments and the measuring ruler 10 together.

[0058] When medical staff use the measuring ruler 10 to measure the limb circumference of a child, they first wrap the measuring ruler 10 around the child's limb, and then pass the first flange 31a of the connector 30 through the locking hole 101 so that the first flange 31a is located on the outside of the thickness direction of the measuring ruler 10. In this way, the first flange 31a can be fixed at the measurement scale 11 of the measuring ruler 10 where the reading is required, avoiding relative movement between the measuring ruler 10 and the connector 30, thereby effectively improving the accuracy of the reading of the measurement scale 11, and thus effectively ensuring the accuracy of the limb circumference measurement.

[0059] In this embodiment, a locking hole 101 is formed on the measuring ruler 10, extending through the measuring ruler 10 along its thickness direction. The locking hole 101 extends along the length direction of the measuring ruler 10. In the width direction of the measuring ruler 10, the width of the flange 31 is greater than the width of the locking hole 101, and the flange 31 is configured to pass through the locking hole 101 along the thickness direction of the measuring ruler 10. This can prevent relative movement between the measuring ruler 10 and the connecting member 30, thereby effectively improving the accuracy of the reading of the measuring scale 11 and thus effectively ensuring the accuracy of limb circumference measurement.

[0060] In one embodiment of this utility model, such as Figure 2 and Figure 3 As shown, the caliper 101 has measuring scales 11 on both sides of the measuring ruler 10 in the width direction. That is to say, when medical staff measure the limb circumference of a child at a location where the limb circumference needs to be measured, no matter how the measuring ruler 10 is wrapped around the child's limb, the medical staff can easily and clearly read the measurement data from either side of the caliper 101 without worrying about the orientation of the measuring ruler 10.

[0061] In this embodiment, the card hole 101 is provided with measuring scales 11 on both sides of the measuring ruler 10 in the width direction, which makes it easier for medical staff to read the measuring scales 11 of the measuring ruler 10, reduces parallax error when reading, and thus effectively improves the convenience and measurement accuracy of the measuring ruler 10.

[0062] In one embodiment of this utility model, such as Figure 1 and Figure 2 As shown, in the extension direction of the first axis, both positioning scale segments 20 are arranged on the side of the measuring scale 10 opposite to the measuring graduations 11. In a specific example, such as... Figure 1 and Figure 2 As shown, the measuring ruler 10 is arranged between the first flange 31a and the two positioning ruler segments 20.

[0063] When medical staff use the limb circumference measurement device 100 to measure the limb circumference of a child, such as Figure 1 and Figure 2 As shown, medical staff can clearly identify the starting point of the measurement scale 11 of the measuring ruler 10. Since the positioning ruler 20 is located behind the measuring ruler 10, the medical staff will not be disturbed by the positioning ruler 20 when reading the measurement scale 11 of the measuring ruler 10. This makes it easier to read the measurement and can effectively improve the accuracy of the reading.

[0064] In this embodiment, by arranging both positioning rulers 20 segments on the side of the measuring ruler 10 away from the measuring scale 11 in the extension direction of the first axis, medical staff can clearly identify the measurement starting point and avoid interference from the positioning rulers 20 when reading the measuring scale 11 of the measuring ruler 10, thereby effectively improving the convenience and accuracy of reading the measuring ruler 10.

[0065] In one embodiment of this invention, both positioning rulers 20 segments are flexible measuring tapes. By using flexible measuring tapes for the positioning rulers 20 segments, they can better adapt to the positioning needs of children of different body types and for different body parts. In other words, whether it's an arm, leg, or other body part, the flexible measuring tape can fit snugly, thus providing accurate positioning support.

[0066] In addition, compared with rigid materials, soft measuring tapes are more skin-friendly for children, which can effectively reduce the discomfort or pressure that children may experience during the use of the positioning ruler 20, thereby effectively improving the comfort of children, avoiding crying during the measurement process, and thus effectively reducing the measurement difficulty for medical staff.

[0067] This embodiment uses flexible measuring tapes for both positioning rulers 20, which not only improves the positioning accuracy of the positioning rulers 20, but also enhances the comfort of the child during measurement, avoids crying, and thus improves the convenience and efficiency of measurement for medical staff.

[0068] In one embodiment of this utility model, the measuring ruler 10 is made of silicone; and / or, both positioning ruler segments 20 are made of silicone. For example, the measuring ruler 10 is made of silicone; or, both positioning ruler segments 20 are made of silicone; or, both the measuring ruler 10 and both positioning ruler segments 20 are made of silicone. In a specific example, the measuring ruler 10 is made of silicone and both positioning ruler segments 20 are made of silicone.

[0069] It should be noted that silicone is a very soft and elastic material. The measuring ruler 10 made of silicone can not only fit closely to different parts of the child's body, thus providing more accurate measurement results, but also make the measuring ruler 10 gentle to the touch, thereby avoiding discomfort or allergic reactions to the child's skin and effectively protecting the child's skin.

[0070] Silicone material also boasts excellent durability, resisting wear and tear, and can withstand repeated daily use by medical staff, thus effectively extending the lifespan of the measuring ruler 10. Furthermore, the silicone material of the measuring ruler 10 facilitates regular disinfection by medical staff, preventing cross-infection and effectively improving safety.

[0071] Both positioning scale segments (20 segments) are made of silicone, meaning they are made of the same material. This ensures that both segments possess identical physical and chemical properties, such as the same elasticity. This effectively guarantees that the two positioning scale segments have the same characteristics, thereby further improving the positioning accuracy of the scales and ultimately enhancing the accuracy of the measurement results. Furthermore, using silicone components for the positioning scale segments is low-cost, easy to process and manufacture, thus effectively reducing costs.

[0072] In this embodiment, by using silicone as the measuring ruler 10, the accuracy of the measurement results can be effectively improved, and the service life of the measuring ruler 10 can also be effectively extended. Furthermore, the silicone material of the measuring ruler 10 provides a gentle touch and facilitates disinfection, thereby effectively improving the safety of the measuring ruler 10. By using silicone as the measuring ruler for both positioning ruler segments 20, both segments can have the same characteristics, thus effectively improving the positioning accuracy of the positioning ruler 20 and consequently improving the measurement accuracy of limb circumference, while also effectively reducing costs.

[0073] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0074] 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 utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0075] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0076] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," 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 present invention. In this specification, the 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0077] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A limb dimension measuring device, characterized by, The application relates to a limb dimension measuring device, comprising: a measuring ruler, which is a soft ruler and is provided with a measuring scale arranged along the length direction of the measuring ruler; a positioning ruler connected with the measuring ruler, the positioning ruler comprising two positioning ruler segments, each of which is provided with a positioning scale arranged along the length direction of the positioning ruler segment, wherein, in a measuring state, the two positioning ruler segments are arranged on the two sides of the measuring ruler in the width direction and are perpendicular to the measuring ruler, and the positioning scales on the two positioning ruler segments are symmetrically arranged about the center line of the measuring ruler extending in the length direction.

2. The limb dimension measuring device of claim 1, wherein, Further comprising: a connecting piece, the measuring ruler and the two positioning ruler segments are rotatably arranged on the connecting piece about a first axis, the limb dimension measuring device further has a storage state, in which the measuring ruler and the two positioning ruler segments are arranged in a thickness direction.

3. The limb dimension measuring device of claim 2, wherein, The 0 scale line of the positioning scale on each of the two positioning ruler segments passes through the first axis, and / or the 0 scale line of the measuring scale passes through the first axis.

4. The limb dimension measuring device of claim 2, wherein, The connecting piece comprises an axle part and two flanges, the axle part extends along the first axis, the two flanges are respectively formed at the axial two ends of the axle part and protrude outward along the radial direction of the axle part, and the measuring ruler and the two positioning ruler segments are sleeved on the axle part and located between the two flanges.

5. The limb dimension measuring device of claim 4, wherein, Further comprising an indicating piece fixed to one end of the positioning ruler segment close to the axle part, the indicating piece is perpendicular to the positioning ruler segment and is used for indicating the measuring direction of the measuring ruler.

6. The limb dimension measuring device of claim 4, wherein, The measuring ruler is provided with a clamping hole penetrating through the measuring ruler along the thickness direction of the measuring ruler, the clamping hole extends along the length direction of the measuring ruler, in the width direction of the measuring ruler, the width of the flange is greater than the width of the clamping hole, and the flange is configured to pass through the clamping hole along the thickness direction of the measuring ruler.

7. The limb dimension measuring device of claim 6, wherein, The clamping hole is provided with the measuring scale on both sides in the width direction of the measuring ruler.

8. The limb dimension measuring apparatus of claim 6, wherein, In the extension direction of the first axis, the two positioning ruler segments are arranged on the side of the measuring ruler away from the measuring scale.

9. The limb dimension measuring apparatus of claim 1, wherein, The two positioning ruler segments are soft rulers.

10. The limb dimension measuring apparatus of claim 1, wherein, The measuring ruler is a silica gel piece, and / or the two positioning ruler segments are silica gel pieces.

Images