A tape measure for measuring the girth of a limb

Abstract

The utility model relates to medical measurement technical field, concretely relates to a ruler for measuring limb girth, including body, the body includes the ruler head, the first through slot of left and right through is set up on the ruler head, the first ruler strip of setting through the first through slot is set up on the ruler head in first through slot side intercommunication, the first slot of setting up on the ruler head is provided with the first slot of opening in first through slot side intercommunication, the closing piece for closing the opening of first slot is set up at the opening of first slot, the closing piece includes the upper accommodating groove of setting on the opening side wall and the lower accommodating groove of setting opposite to the upper accommodating groove, the movable sealing plate is connected with the upper accommodating groove in the opening side wall through the elastic spring, and the movable sealing plate is inserted into the lower accommodating groove under the action of the elastic spring to close the opening of first slot. The utility model first ruler strip is more easily through first slot, and the measurement efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of medical measurement technology, and in particular to a ruler for measuring limb circumference. Background Technology

[0002] When a patient experiences lower limb swelling, the limb circumference can be measured at regular intervals to determine if the condition is improving.

[0003] For example, a patent with publication number CN213371980U, entitled "A Leg Circumference Measurement Device for Deep Vein Thrombosis of the Lower Limbs," was published on March 1, 2017. It includes a knee positioning band, two rulers, a thigh leg circumference measuring device, and a calf leg circumference measuring device. The knee positioning band of this leg circumference measuring device consists of an elastic cloth and an elastic band. One end of the elastic cloth and the elastic band are detachably connected, and the length of the elastic band can be adjusted. The exposed hole on the elastic cloth is constrained at the patella, and the elastic band is constrained at the patient's popliteal crease, ensuring that the constraint position of the knee positioning band is relatively consistent each time it is used on the same patient. After connecting the rulers, the leg circumference measurement location is also consistent, ensuring consistency across multiple measurements. However, the soft measuring tape is relatively flexible, making it difficult to pass the soft measuring tape through the groove on the measuring tape head, reducing measurement efficiency. Summary of the Invention

[0004] In view of this, the purpose of this utility model is to propose a measuring tool for measuring limb circumference in order to solve the problem of reduced measurement efficiency.

[0005] Based on the above objectives, this utility model provides a measuring tool for measuring limb circumference, comprising a body, the body including a measuring head, the measuring head having a first through groove extending from left to right, the measuring head having a first measuring strip extending through the first through groove, the first measuring strip having horizontal graduation lines along its length, one end of the first measuring strip being connected to the side wall of the measuring head, a first opening on the measuring head being connected to one side of the first through groove, a closing member for closing the opening of the first opening being provided at the opening of the first opening, the closing member including an upper receiving groove and a lower receiving groove disposed on the side wall of the opening, a movable sealing plate being accommodated and connected in the upper receiving groove by an elastic spring, the movable sealing plate extending into the lower receiving groove under the action of the elastic spring to close the opening of the first opening, the length of the movable sealing plate being greater than the gap length between the lower receiving groove and the upper receiving groove.

[0006] Optionally, one end of the first ruler strip is detachably connected to the side wall of the ruler head.

[0007] Optionally, a slot is provided on the side wall of the ruler head to accommodate one end of the first ruler strip. A retaining strip is provided in the slot, and a placement groove is provided on one side of the slot. A screw hole is provided between the slot and the placement groove, and a screw rod is provided in the placement groove that passes through the screw hole and is connected to the retaining strip.

[0008] Optionally, a lever is provided on the outer side of the movable sealing plate.

[0009] Optionally, a second ruler strip is provided on the ruler head, which is perpendicular to the first ruler strip.

[0010] Optionally, there are two ruler heads, arranged one above the other, with each ruler head connected to a first ruler strip, and the second ruler strip running vertically through both ruler heads.

[0011] Optionally, the ruler head is provided with a second through groove that runs vertically through one side of the first through groove. The second ruler strip passes through the second through groove. Two vertical scale lines are provided on the second ruler strip along its length. The values ​​of the two vertical scale lines gradually increase from top to bottom and gradually decrease from top to bottom, respectively.

[0012] Optionally, a second slot is connected to one side of the second through groove, and a closing member is also provided at the opening of the second slot. The closing member at the opening of the second slot is used to close the opening of the second slot.

[0013] Optionally, a friction limiting block is provided in the second through groove, the friction limiting block being located between the second ruler strip and the side wall of the second through groove and being in close contact with both.

[0014] Optionally, limiting strips are provided at both ends of the second ruler.

[0015] The beneficial effects of this utility model are as follows: This utility model provides a ruler for measuring limb circumference. When it is necessary to measure limb circumference, the ruler head is placed against the limb, and then the other end of the first ruler strip is wrapped around the limb. When the other end of the first ruler strip reaches the ruler head, the closing part is opened. The moving sealing plate is moved upward into the receiving groove by controlling the moving plate, compressing the elastic spring, opening the opening of the first slot, and then the first ruler strip enters the first slot through the opening of the first slot, which facilitates the measurement of limb circumference. The first ruler strip can easily pass through the first slot, which improves the measurement efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 Enlarged structural diagram at point A; Figure 3 This is a schematic diagram of the structure of the ruler head of this utility model; Figure 4 for Figure 3 Enlarged structural diagram at point B.

[0018] In the diagram: 1. Body; 2. Ruler head; 3. First through groove; 4. Second through groove; 5. Slot; 6. Locking strip; 7. Placement slot; 8. Screw hole; 9. Screw; 10. First slot; 11. Second slot; 12. Closing element; 13. Elastic spring; 14. Paddle plate; 15. Moving sealing plate; 16. Upper receiving slot; 17. First ruler strip; 18. Second ruler strip; 19. Restriction strip; 20. Friction limit block. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0020] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0021] like Figures 1 to 4As shown, a measuring tool for measuring limb circumference includes a body 1, which includes a measuring head 2. The measuring head 2 has a first through-groove 3 extending from left to right. A first measuring strip 17, which is a soft measuring tape, is provided on the measuring head 2, passing through the first through-groove 3. The first measuring strip 17 has horizontal graduation lines along its length. One end of the first measuring strip 17 is connected to the side wall of the measuring head 2. A first slot 10 is provided on one side of the first through-groove 3, which can be specifically formed on the upper surface of the measuring head 2 or... On the lower end face, a closing member 12 for closing the opening of the first slot 10 is provided at the opening of the first slot 10. The closing member 12 includes an upper receiving groove 16 provided on the side wall of the opening and a lower receiving groove provided opposite to the upper receiving groove 16. A movable sealing plate 15 is received and connected in the upper receiving groove 16 by an elastic spring 13. The movable sealing plate 15 extends into the lower receiving groove under the action of the elastic spring 13 to close the opening of the first slot 10. The length of the movable sealing plate 15 is greater than the gap length between the lower receiving groove and the upper receiving groove 16.

[0022] When it is necessary to measure the circumference of a limb, place the ruler head 2 against the limb, and then wrap the other end of the first ruler strip 17 around the limb. When the other end of the first ruler strip 17 reaches the ruler head 2, control the closing member 12 to open. Control the moving sealing plate 15 to move into the upper receiving groove 16, compress the elastic spring 13, open the opening of the first slot 10, and then the first ruler strip 17 enters the first slot 10 through the opening of the first slot 10, which facilitates the measurement of the limb circumference. The first ruler strip 17 can easily pass through the first slot 10, which improves the measurement efficiency.

[0023] One end of the first ruler strip 17 is detachably connected to the side wall of the ruler head 2, making it convenient to replace the first ruler strip 17.

[0024] The ruler head 2 has a groove 5 on its side wall to accommodate one end of the first ruler strip 17. A retaining strip 6 is provided in the groove 5. A placement groove 7 is provided on one side of the groove 5. A screw hole 8 is provided between the groove 5 and the placement groove 7. A screw rod 9 is provided in the placement groove 7, which passes through the screw hole 8 and is connected to the retaining strip 6. Rotating the screw rod 9 causes the retaining strip 6 to be tightly attached to the side wall of the groove 5 to fix the first ruler strip 17 between the retaining strip 6 and the side wall of the groove 5.

[0025] The side wall of the slot 5 is provided with a slide rail that is slidably connected to the clip 6. The clip 6 is rotatably connected to or in contact with the screw hole 8, which restricts the clip 6 so that it cannot rotate. This can better fix the first ruler 17, prevent the first ruler 17 from twisting, and reduce measurement error.

[0026] A lever 14 is provided on the outer side of the movable sealing plate 15, which allows the user to move the movable sealing plate 15 to open the opening of the first slot 10 by using the lever 14.

[0027] The ruler 2 is provided with a second ruler 18 that is perpendicular to the first ruler 17. The specific measurement position of the limb circumference to be measured is determined by the second ruler 18 according to the patient's actual situation. When the patient's limb circumference is measured for the first time, the specific measurement position of the limb circumference to be measured is recorded on the record sheet. In the second and subsequent measurements, the specific measurement position of the first measurement is always used. The circumference of the same part of the limb is measured multiple times to determine whether the limb has improved.

[0028] The ruler head 2 has a second through groove 4 located on one side of the first through groove 3, and the second ruler strip 18 is arranged through the second through groove 4. The second ruler strip 18 has two vertical scale lines along its length. The values ​​of the two vertical scale lines gradually increase from top to bottom and gradually decrease from top to bottom, respectively. When measuring the circumference of the calf, the upper end of the second ruler strip 18 can be aligned with the kneecap or the lower end of the second ruler strip 18 can be aligned with the ankle bone. This is to measure the distance between the kneecap and the upper circumference of the calf to be measured or the distance between the ankle bone and the upper circumference of the calf to be measured, which is convenient for subsequent multiple measurements of the calf circumference at the same location.

[0029] There are two ruler heads 2, which are arranged one above the other. Each ruler head 2 is connected to a first ruler strip 17, and the second ruler strip 18 is arranged to pass through the two ruler heads 2 vertically.

[0030] When measuring leg circumference, place the upper end of the measuring tape 2 against the thigh. Then, wrap the other end of the first strip 17 of the measuring tape 2 around the limb. When the other end of the first strip 17 reaches the measuring tape 2, the closing element 12 is opened. By controlling the moving sealing plate 15 to move into the upper receiving groove 16, the elastic spring 13 is compressed, opening the opening of the first slot 10. Then, the first strip 17 enters the first slot 10 through the opening. The first strip 17 on this measuring tape 2 is used to measure the circumference of the thigh. Then, move the lower end of the measuring tape 2 up and down to adjust the distance between the two measuring tapes 2. After that, place the other lower end of the measuring tape 2 against the calf. The first strip 17 on this measuring tape 2 is used to measure the circumference of the calf, improving measurement efficiency.

[0031] The second through groove 4 is connected to a second slot 11 formed on the ruler head 2. The opening of the second slot 11 is also provided with the closing member 12. The closing member 12 provided at the opening of the second slot 11 is used to close the opening of the second slot 11. The second slot 11 can be closed by closing the opening of the second slot 11, so that the second ruler strip 18 is not easy to fall out of the second slot 11. Alternatively, the opening of the second slot 11 can be opened by closing the opening of the second slot 11, so that the second ruler strip 18 can be taken out from the second slot 11 and through the opening of the second slot 11 for replacement.

[0032] A friction limiting block 20 is provided in the second through groove 4. The friction limiting block 20 is located between the second ruler strip 18 and the side wall of the second through groove 4 and is in close contact with both. The setting of the friction limiting block 20 makes it easy for the second ruler strip 18 to not fall off the ruler head 2 when not in use, increases the friction force between the second ruler strip 18 and the ruler head 2, and does not affect the user's ability to pull the second ruler strip 18 up and down.

[0033] The friction limiting block 20 is a sponge block or an inflatable rubber block, etc.

[0034] Both ends of the second ruler strip 18 are provided with a limiting strip 19. The limiting strip 19 is provided to prevent the second ruler strip 18 from detaching from the ruler head 2. The limiting strip 19 can be detachably provided on the second ruler strip 18.

[0035] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0036] The embodiments of this utility model are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A tape measure for measuring the girth of a limb, comprising a body including a tape head, characterised in that, The ruler head has a first through groove running horizontally through it. The ruler head has a first ruler strip running through the first through groove. The first ruler strip has horizontal graduation lines along its length. One end of the first ruler strip is connected to the side wall of the ruler head. A first slot is provided on one side of the first through groove. A closing element is provided at the opening of the first slot for closing the opening of the first slot. The closing element includes an upper receiving slot and a lower receiving slot provided on the side wall of the opening. A movable sealing plate is received and connected in the upper receiving slot by an elastic spring. The movable sealing plate extends into the lower receiving slot under the action of the elastic spring to close the opening of the first slot. The length of the movable sealing plate is greater than the gap length between the lower receiving slot and the upper receiving slot.

2. The tape measure of claim 1, wherein, One end of the first ruler strip is detachably connected to the side wall of the ruler head.

3. A tape measure for measuring the girth of a limb according to claim 2, wherein, The ruler head sidewall has a slot for accommodating one end of the first ruler strip. A retaining strip is provided in the slot. A placement groove is provided on one side of the slot. A screw hole is provided between the slot and the placement groove. A screw rod is provided in the placement groove, passing through the screw hole and connected to the retaining strip.

4. A measuring tool for measuring limb circumference according to claim 1, characterized in that, A lever is provided on the outside of the movable sealing plate.

5. A measuring tool for measuring limb circumference according to claim 1, characterized in that, The ruler head is provided with a second ruler strip that is perpendicular to the first ruler strip.

6. A measuring tool for measuring limb circumference according to claim 5, characterized in that, The ruler head is provided in two positions, one above the other. Each ruler head is connected to a first ruler strip, and the second ruler strip runs through both ruler heads vertically.

7. A measuring tool for measuring limb circumference according to claim 5, characterized in that, The ruler head has a second through groove that runs vertically through one side of the first through groove. The second ruler strip passes through the second through groove. Two vertical scale lines are provided on the second ruler strip along its length. The values ​​of the two vertical scale lines gradually increase from top to bottom and gradually decrease from top to bottom, respectively.

8. A measuring tool for measuring limb circumference according to claim 7, characterized in that, The second through groove is connected to a second slot on the ruler head, and the closing element is also provided at the opening of the second slot. The closing element at the opening of the second slot is used to close the opening of the second slot.

9. A measuring tool for measuring limb circumference according to claim 7, characterized in that, A friction limiting block is provided in the second through groove. The friction limiting block is located between the second ruler strip and the side wall of the second through groove and is in close contact with both.

10. A measuring tool for measuring limb circumference according to claim 5, characterized in that, The second ruler has limiting strips at both ends.

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