CN216962451U - A limb circumference measurement tool - Google Patents

Abstract

The utility model relates to the field of medical instruments, in particular to a limb circumference measuring tool. It mainly includes a guide rod and a soft ruler, with a handle at the bottom and a connection hole at the top of the guide rod. The soft ruler passes through the connection hole. During measurement, it can easily pass under the measurement limb and pass through the other side without raising the patient's limb. It can be pierced from the side to reduce the pain and discomfort caused by the movement of the patient's limbs, and reduce the workload of the measurer.

Description

A limb circumference measurement tool

technical field

The utility model relates to the field of medical instruments, in particular to a limb circumference measuring tool.

Background technique

In clinical work, it is necessary to measure the patient's limb circumference frequently. By understanding the changes of the patient's limb circumference, we can further understand the patient's limb thickness, degree of swelling, and degree of muscle atrophy, and compare the efficacy before and after treatment. The most commonly used tools for measuring the circumference of limbs are ordinary soft rulers, as well as various soft rulers modified to increase the measurement accuracy and convenience.

Utility Model Patent No. 201420593937.X "A Leg Circumference Measuring Device" is a measuring device including a soft ruler with a scale and a hard ruler with a scale. There is a foot pedal in the zero-scale section to ensure the same position of the leg every time, and improve the measurement accuracy. Utility model patent number

201821629574.5 "A Leg Circumference Measuring Device" discloses a leg circumference measuring device, the structure of which includes a strap, a measuring strap, and a connector between the measuring strap and the strap. When in use, the legs are quickly fixed by the straps, the measuring point of the leg circumference is determined by the connecting piece, and then the outer diameter of the leg is measured by fitting the measuring ruler to the outer surface of the leg. The measurement process is fast and convenient, saving time. Utility Model Patent No. 202020158177.5 "Ruler for Measuring the Dimensions of Limbs", its structure includes a measuring ruler, a sliding ring and a soft ruler. When in use, one end of the measuring ruler can be directly fixed to the human ankle or wrist through a fixing strap, and then pass the scale line. Move the sliding ring to different positions of the limb to be measured for measurement, the position of each measurement position from the wrist or ankle can be directly determined by the scale line, and there is no need to measure this distance multiple times, so that it will not be caused by multiple measurements. Error increases.

Whether it is an ordinary soft ruler or the above-mentioned modified measuring devices with a soft ruler, there are still many defects in clinical practice. First, when measuring the limb circumference of a bedridden patient, the patient's limb is required to be elevated, and the measurer passes a tape under the patient's limb and out from the opposite side, wraps the limb once, and measures the limb circumference. This operation is simple and effective for patients with normal limb muscle strength, but for some patients with limb paralysis and weakness or limb trauma (or postoperative), the soft paralysis or swelling of the limb makes it difficult for the tape to pass under the limb At this time, assistants are often required to lift the patient's limb, which not only increases the workload of medical staff, but may also induce pain in the patient; secondly, when the tape passes under the patient's limb, it is in the blind spot of the measurer's sight. The soft ruler may be offset, rotated and folded, which affects the measurement accuracy, so the existing measurement tools need to be further improved.

Utility model content

In order to solve the above problems, it is necessary to design a measuring tool, which can easily pass under the measuring limb and pass out from the other side without raising the patient's limb during measurement, so as to reduce the impact caused by the movement of the patient's limb. Pain and discomfort, and reduce the workload of the measurer.

Specifically, the utility model mainly adopts the following technical solutions:

A limb circumference measurement tool, comprising a soft ruler and a guide rod, the soft ruler is provided with a scale for measuring the circumference, the top of the guide rod is provided with a connection hole, and the soft ruler passes through the connection hole, The surface of the guide rod is covered with a soft cover, and the bottom of the guide rod is connected with a handle.

Further, the guide rod and the handle at the bottom are mechanically connected or welded together.

Further, the handle is curved or straight, and the patient can hold the handle to perform measurement operations. Preferably, the handle has a length of 100 mm and a diameter of 10 mm.

Further, the guide rod is a hard and elastic metal rod, which can easily pass through the gap between the limb and the bed, and guide the 0-scale end of the soft ruler to pass through the other side of the limb; at the same time, it has an elastic guide. The top of the rod can bounce back up after passing under the limb, which is convenient for the measurer to take the 0-scale end of the soft ruler, and further measure and read the scale.

Further, the connecting hole is a fully closed or semi-open circular hole. Preferably, the length of the fully closed connecting hole is 12 mm and the width is 5 mm.

Alternatively, the connecting hole may also be a semi-open U-shaped opening, which is convenient for the guide rod to be separated from the tape after passing through the gap between the thigh and the bed board.

Further, the guide rod is a flat metal rod or a straight rod. When the guide rod is a flat metal rod, the guide rod is a retractable structure, which is divided into 4-section structures, that is, the lower-section structure is sleeved on the outer surface of the upper-section structure. This forms a stretchable structure. Preferably, the guide rod is 220mm, the lower part is 200mm, including 3-section structure, the upper part is a single-section structure, the length is 20mm, the width is 15mm, the thickness is 6mm, and the connecting hole is opened in the top structure.

The utility model has the following beneficial effects:

First of all: when using this device for limb circumference measurement, only one person is required to operate, without lifting the patient's limb. With the help of the guide rod, the 0-scale end of the soft ruler can easily pass through the gap between the limb and the bed, from the limb The other side is pierced, reducing the possibility of inducing pain in the patient when the limb is lifted.

Secondly: the guide rod can guide the soft ruler to pass through the blind spot of sight under the limbs, avoid the rotation, folding and deviation of the soft ruler, and improve the measurement accuracy.

Description of drawings

Fig. 1 is the structural representation of a certain specific embodiment of the present utility model;

Each number in the picture: 1-soft ruler, 2-guide rod, 3-connection hole, 4-handle.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Please refer to Figure 1, a leg circumference measuring device, including a soft ruler 1 and a guide rod 2, the soft ruler 1 is designed as a plastic soft ruler, the material is transparent, the length is 1200mm, the width is 10mm, and the thickness is 1mm. The total length of the guide rod 2 is 320mm, and the upper part is a widened flat metal plate with a length of 20mm, a width of 15mm, and a thickness of 6mm. There are connecting holes 3 with a length of 12mm and a width of 5mm. The soft ruler 1 can be smoothly Use it through the connecting hole 3 in the head of the guide rod 2 . The lower part is a flat metal rod with a length of 200mm, a width of 10mm, a central thickness of 5mm, an edge thickness of 2mm, and a smooth surface. The curved handle 4 has a length of 100mm and a diameter of 10mm, which can also limit the distance that the guide rod 2 passes through the leg, so as to prevent the soft ruler 1 from being sent to a too far position for easy access.

Another embodiment of the technical solution is that the connecting hole 3 is a semi-open circular hole, the surface of the guide rod 2 is covered with a soft cover, and the rest of the design is the same as the above embodiment.

Another embodiment of this technical solution is that the head of the guide rod 2 is a semi-open U-shaped opening, which is convenient to separate from the soft ruler after passing through the gap between the thigh and the bed board, and the rest of the structure is the same as the first embodiment. .

Another embodiment of the technical solution is that the hand-held part at the tail of the guide rod 2 is a straight rod, and the rest of the structure is the same as that of the first embodiment.

Another embodiment of the technical solution is that the guide rod 2 is a retractable structure, which is convenient for medical staff to store and carry, and the rest of the structure is the same as that of the first embodiment.

Specific method of use: When the limb circumference measuring device of the present utility model is in use, the measurer first uses the scale mark on the guide rod 2 to locate the part where the circumference needs to be measured, and then passes the 0 scale end of the soft ruler 1 through the guide rod 2 Connect the connecting holes of the head, and spread the tape 1 along the guide rod 2 and flatten it; then, the measurer will hold the handle 4, pass the top of the guide rod 2 through the gap between the patient's limb and the bed, and Passing out from the other side of the limb, the tester grasps the 0-scale end of the soft ruler 1 at the guide hole 2 on the other side of the patient's limb. Finally, the tester holds the two ends of the soft ruler 1, wraps it around the patient's limb and reads the scale , to get the limb circumference.

By adopting the limb circumference measuring device of the present invention, the 0-scale end of the soft ruler 1 is connected through the connecting hole 3 of the guide rod 2 during use, and then the head of the guide rod 2 only needs to pass through the limb of the bedridden patient and the bed. In the gap between the two, the guide rod 2 will drive the scaled soft ruler 1 to pass under the subject's limb and pass out from the opposite side. Take readings, improving the convenience of measurement. In addition, due to the function of the guide rod 2, when the soft ruler 1 passes through the blind area of sight under the limb, rotation, folding and deviation will not occur, thereby improving the measurement accuracy.

At the same time, the measuring device of the utility model solves the problem of paralyzed and weak limbs or patients with limb trauma or surgery, so that the ruler can smoothly pass through the gap between the thigh and the bed without lifting the leg during measurement. The other side is pierced out, thus reducing the workload of the measurer and reducing the pain that may be caused to the patient.

Claims (10)

1. A limb circumference measuring tool, characterized in that it comprises a soft ruler (1) and a guide rod (2), the top of the guide rod (2) is provided with a connecting hole (3), and the soft ruler (1) Passing through the connecting hole (3), the surface of the guide rod (2) is covered with a soft cover, and the bottom of the guide rod (2) is connected with a handle (4). 2 . The limb circumference measurement tool according to claim 1 , wherein the handle ( 4 ) is curved or straight rod. 3 . 3. The limb circumference measurement tool according to claim 2, wherein the handle (4) has a length of 100 mm and a diameter of 10 mm. 4 . The limb circumference measurement tool according to claim 2 , wherein the connecting hole ( 3 ) is a fully closed or semi-open circular hole. 5 . 5 . The limb circumference measurement tool according to claim 3 , wherein the fully enclosed connecting hole ( 3 ) has a length of 12 mm and a width of 5 mm. 6 . 6 . The limb circumference measurement tool according to claim 2 , wherein the connecting hole ( 3 ) is a semi-open U-shaped opening. 7 . 7 . The limb circumference measurement tool according to claim 1 , wherein the guide rod ( 2 ) is a flat metal rod. 8 . 8 . The limb circumference measurement tool according to claim 1 , wherein the guide rod ( 2 ) has a length of 220 mm, a width of 10 mm, a central thickness of 5 mm, and an edge thickness of 2 mm. 9 . 9 . The limb circumference measurement tool according to claim 7 , wherein the guide rod ( 2 ) is a 4-segment telescopic structure. 10 . 10. The limb circumference measurement tool according to any one of claims 1-8, wherein the soft ruler (1) has a length of 1200 mm, a width of 10 mm and a thickness of 1 mm.

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