Visual lower limb circumference measuring instrument

Abstract

The invention discloses a visual lower limb circumference measuring instrument, and belongs to the technical field of lower limb circumference measurement, the visual lower limb circumference measuring instrument comprises a clamp assembled on the edge of a sickbed, two groups of extension rulers are assembled on the clamp, one end of each extension ruler is connected with a pressure pad unit, and the pressure pad unit comprises a main rod connected with the extension rulers; through the pressure pad unit and the measuring unit, after the pressure pad unit is fixed to the edge of a sickbed together with a clamp and presses the corresponding position of a mattress, the mattress below the to-be-measured position of the lower limb of a patient can be gradually pressed down by moving an extension pressure rod, so that the measuring unit can be located below the measuring position without moving the lower limb; the device is particularly suitable for patients with fixed lower limbs or limited actions, pain and discomfort are remarkably relieved, meanwhile, the device is attached to the lower limbs by moving the contact seat upwards after moving to the lower portion, then the measuring ruler is pulled out to surround the lower limbs, the measuring ruler is fixed through the insertion piece after surrounding the lower limbs, and data are directly read in combination with the magnifying lens.

Description

Technical Field

[0001] The invention relates to the technical field of lower limb circumference measurement, and in particular to a visual lower limb circumference measuring instrument. Background Art

[0002] In clinical practice, the circumference of lower limb venous thrombosis is usually measured using a measuring ruler, which generally includes an upper measuring ruler, a lower measuring ruler and a telescopic ruler. When measuring, the upper measuring ruler is used to measure the circumference of the thigh, the lower measuring ruler is used to measure the circumference of the calf, and then the telescopic ruler is used to read the distance between the thigh and the calf.

[0003] The limb circumference is mainly measured 15 cm above and 10 cm below the midpoint of the patella. These two positions can usually reflect the main areas of lower limb swelling.

[0004] The traditional tape measure method relies on manual positioning of the measuring point, and the operation process is relatively cumbersome. For patients with limited mobility or serious illnesses, this measurement process is particularly inconvenient and may further aggravate their discomfort, especially when the patient's lower limbs are fixed and straightened on the bed due to treatment needs. The slight movement of the lower limbs required for measurement is not only difficult to operate, but also easily causes additional pain to the patient. Summary of the invention

[0005] The purpose of the present invention is to propose a visual lower limb circumference measuring instrument to solve the problem that when the patient's lower limbs are fixed and stretched on the bed due to treatment needs, the slight movement of the lower limbs required for measurement is not only difficult to operate but also easily causes additional pain to the patient.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A visual lower limb circumference measuring instrument comprises a clamp mounted on the edge of a hospital bed, the clamp is equipped with two sets of telescopic rulers, one end of the telescopic ruler is connected to a pressure pad unit;

[0008] The pressure pad unit comprises a main rod connected to the telescopic ruler, an extension pressure rod is inserted into the main rod, and a measuring unit is clamped on the extension pressure rod through a clamping slot;

[0009] The measuring unit includes a contact seat that is clamped in a card slot, and a retractable measuring ruler is provided in the contact seat. The extended pressure rod slides forward in the main rod and presses down the mattress at the position of the lower limb to be measured, so that the contact seat can move below the measuring position without touching the lower limb, and complete the circumference measurement through the measuring ruler.

[0010] As a further description of the above technical solution:

[0011] The pressure pad unit also includes a front pressure wheel rotatably connected to the end of the extension pressure rod. The other ends of the two extension pressure rods are each provided with a socket, and a telescopic push rod is commonly inserted into the two sockets, so that the two extension pressure rods can move together.

[0012] As a further description of the above technical solution:

[0013] The telescopic ruler comprises a connecting tube which is detachably fixed on a clamp, a graduated rod is inserted into the connecting tube, and one end of the graduated rod is connected to a main rod.

[0014] As a further description of the above technical solution:

[0015] The upper surfaces of the connecting tube and the main rod are both threadedly connected with knob studs, so that the extended pressure rod and the scale rod can be fixed in position after moving.

[0016] As a further description of the above technical solution:

[0017] The measuring unit also includes a shaft rotatably connected to the contact seat, one end of the measuring ruler is fixed on the shaft, the other end of the measuring ruler passes through the contact seat and is connected to a plug, and one end of the shaft passing through the contact seat is connected to a knob for driving it to rotate.

[0018] As a further description of the above technical solution:

[0019] The contact seat surface is provided with an arc groove for fitting the patient's lower limbs, and both sides of the contact seat upper surface are provided with slots adapted to the insert. The insert is taken out of one of the slots and the measuring ruler is pulled around the patient's lower limbs before being inserted into the other slot.

[0020] As a further description of the above technical solution:

[0021] A window hole for observing the reading of the measuring ruler is provided on one side of the upper surface of the contact seat close to one of the slots, and a magnifying glass for magnifying the reading is clamped in the window hole, so that after the insert is inserted into the other slot, the reading of the measuring ruler remaining on the shaft rod corresponding to the top edge of the slot can be read through the magnifying glass.

[0022] As a further description of the above technical solution:

[0023] Two recovery grooves are provided on both sides of the contact seat, and inclined plane blocks are connected to the recovery grooves through springs. Multiple limiting grooves matching the inclined plane blocks are provided on both side walls of the slot, and the inclined plane blocks are engaged in the limiting grooves under the drive of the springs.

[0024] As a further description of the above technical solution:

[0025] The clamp comprises a U-shaped piece, the lower surface of which is threadedly connected with an adjusting bolt, one end of which penetrates into the U-shaped piece and is rotatably connected with a clamping plate, one end of which is slidably mounted on the inner wall of the U-shaped piece.

[0026] As a further description of the above technical solution:

[0027] One end of the splint and both ends of the U-shaped piece are connected with extension support pieces through receiving grooves. One end of the extension support piece is provided with an arc groove for fitting the patient's lower limbs, so that the U-shaped piece can cooperate with the splint to support the patient's arched lower limbs after being erected. The lower surface of the splint and the upper and lower surfaces of the U-shaped piece are threadedly connected with knob bolts for fixing the position of the extension support piece after it is extended.

[0028] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0029] By setting the pressure pad unit and the measuring unit, it is achieved that after the pressure pad unit is fixed to the edge of the bed together with the clamp and presses down the corresponding position of the mattress, the mattress below the position to be measured of the patient's lower limbs can be gradually pressed down by moving the extended pressure rod, so that the measuring unit can be below the measuring position without moving the lower limbs, which is particularly suitable for patients with fixed lower limbs or limited movements, significantly reducing pain and discomfort. At the same time, after moving to the bottom, the contact seat is moved up to make it fit with the lower limbs, and then the measuring ruler is pulled out to surround the lower limbs. After the measuring ruler surrounds the lower limbs, it is fixed by the insert, and the data can be directly read in combination with a magnifying glass;

[0030] At the same time, after the clamp is erected and placed on the surface of the bed, it can support the arched lower limbs, and the circumference measurement can be directly performed after the measuring unit is taken out. The extended support part is retractable and fixed, which can adapt to patients of different body shapes and improve the versatility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic diagram showing a structure in which a clamp provided by an embodiment of the present invention is fixed to the edge of a hospital bed;

[0032] Figure 2 It shows a schematic structural diagram of an extended pressure rod after being extended according to an embodiment of the present invention;

[0033] Figure 3 It shows a schematic structural diagram of a measuring ruler provided by an embodiment of the present invention after a part is pulled out;

[0034] Figure 4 It shows a schematic structural diagram of the disassembly of the telescopic push rod provided in an embodiment of the present invention;

[0035] Figure 5 The embodiment of the present invention provides Figure 3The enlarged view of point A in the middle;

[0036] Figure 6 It shows a schematic diagram of the structure of a measuring ruler after being wrapped according to an embodiment of the present invention;

[0037] Figure 7 The embodiment of the present invention provides Figure 6 The enlarged view of point B in the middle;

[0038] Figure 8 A schematic diagram showing the structural installation of the bottom of a U-shaped member provided according to an embodiment of the present invention is shown;

[0039] Fig. 9 It shows a schematic structural diagram of an extended support member after being extended according to an embodiment of the present invention;

[0040] Fig.10 It shows a schematic structural diagram of measuring the circumference of a lower limb in a flat state according to an embodiment of the present invention;

[0041] Fig.11 A schematic diagram of the structure of measuring the circumference of the lower limbs in an arched state provided by an embodiment of the present invention is shown.

[0042] Legend:

[0043] 10. Clamp; 11. U-shaped piece; 12. Adjusting bolt; 13. Clamp; 14. Extended support piece; 15. Knob bolt;

[0044] 20. Telescopic ruler; 21. Connecting tube; 22. Scale rod;

[0045] 30. Pressure pad unit; 31. Main rod; 32. Extended pressure rod; 33. Slot; 34. Front pressure wheel; 35. Telescopic push rod;

[0046] 40. Measuring unit; 41. Contact seat; 42. Measuring ruler; 43. Shaft; 44. Insert; 45. Arc groove; 46. Magnifying glass; 47. Spring; 48. Inclined block;

[0047] 50. Knob stud. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] like Figure 1 - Fig.11As shown, the present invention provides:

[0050] A visual lower limb circumference measuring instrument comprises a fixture 10 mounted on the edge of a hospital bed, two sets of telescopic rulers 20 are mounted on the fixture 10, the telescopic ruler 20 comprises a detachable connecting tube 21 fixed on the fixture 10, and a graduated rod 22 is inserted into the connecting tube 21;

[0051] Specifically, the length of the scale rod 22 can be adjusted by telescoping, and combined with the standard positioning of the midpoint of the patella (such as 15 cm above and 10 cm below), the measurement position can be quickly determined to avoid manual marking errors.

[0052] like Figure 2 , Figure 3 , Figure 8 and Fig. 9 As shown, the clamp 10 includes a U-shaped member 11, the lower surface of the U-shaped member 11 is threadedly connected with an adjusting bolt 12, one end of the adjusting bolt 12 inserted into the U-shaped member 11 is rotatably connected with a clamping plate 13, and one end of the clamping plate 13 is slidably mounted on the inner wall of the U-shaped member 11;

[0053] One end of the splint 13 and both ends of the U-shaped member 11 are connected with an extension support member 14 through a receiving groove, and one end of the extension support member 14 is provided with an arc groove for fitting the patient's lower limbs, so that the U-shaped member 11 can cooperate with the splint 13 to support the arched lower limbs of the patient after it is erected, and the lower surface of the splint 13 and the upper surface and lower surface of the U-shaped member 11 are threadedly connected with a knob bolt 15 for fixing the position of the extension support member 14 after it is extended;

[0054] Specifically, after adjusting the length of the scale rod 22, the U-shaped member 11 is inserted and placed on the bedside corresponding to the midpoint of the patient's patella. At this time, the adjusting bolt 12 is rotated to make the splint 13 gradually abut against the bottom of the bed board. After abutting, the U-shaped member 11 and the extension support member 14 will drive the corresponding position of the mattress to be depressed, and the extension support member 14 will also be lower than the surface of the mattress, so that the extension support member 14 will not contact the lower limbs when moving toward the lower limbs. This state is particularly suitable for the situation where the patient's lower limbs are stretched on the bed and cannot move;

[0055] When it is necessary to measure the circumference of the patient's arched lower limbs, stand up the U-shaped piece 11 and rotate the adjusting bolt 12 to move the splint 13 to the middle position. At this time, place the U-shaped piece 11 under the arched part and ensure that the splint 13 is located at the center below. Then adjust the position of the extended support piece 14 so that its arc groove can fit the patient's lower limbs to support the patient's arched lower limbs and ensure the stability of the lower limbs during subsequent measurements. When measuring in this state, the measuring unit 40 needs to be taken out of the slot 33 and then the measurement operation is performed.

[0056] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, one end of the telescopic ruler 20 is connected to a pressure pad unit 30, and the pressure pad unit 30 includes a main rod 31 connected to the telescopic ruler 20, one end of the scale rod 22 is connected to the main rod 31, and an extension pressure rod 32 is inserted into the main rod 31;

[0057] The pressure pad unit 30 also includes a front pressure wheel 34 rotatably connected to the end of the extension pressure rod 32. The other ends of the two extension pressure rods 32 are provided with a socket, and the two sockets are commonly plugged with a telescopic push rod 35, so that the two extension pressure rods 32 can move together. In particular, the surface of the telescopic push rod 35 is covered with a flexible sleeve, so that people can hold the telescopic push rod 35 more comfortably. The upper surfaces of the connecting tube 21 and the main rod 31 are both threadedly connected with a knob stud 50, so that the extension pressure rod 32 and the scale rod 22 can be fixed in position after moving;

[0058] Specifically, after the U-shaped member 11 is fixed, the main rod 31 and the extended pressure rod 32 will press down the mattress, so that its surface sinks into the depression. At the same time, since only the part of the mattress that contacts the rod body is depressed by force, and the rest of the part is in a normal state, the mattress always maintains a supporting state for the patient's lower limbs.

[0059] In this state, by pushing the telescopic push rod 35, the two extension pressure rods 32 can be moved together toward the patient's lower limbs, pressing down the mattress in the contact part during the movement, and then moving the measuring unit 40 below the measuring position without moving the lower limbs or contacting the lower limbs, thereby avoiding unnecessary damage to the lower limbs.

[0060] like Figure 2 , Figure 3 , Figure 6 and Figure 7 As shown, the extended pressure rod 32 is clamped with a measuring unit 40 through a clamping slot 33, and the measuring unit 40 includes a contact seat 41 clamped in the clamping slot 33, and a retractable measuring ruler 42 is arranged in the contact seat 41. The extended pressure rod 32 slides forward in the main rod 31 and presses down the mattress at the position of the lower limb to be measured, so that the contact seat 41 can move below the measuring position without touching the lower limb, and complete the circumference measurement through the measuring ruler 42;

[0061] The measuring unit 40 further includes a shaft 43 rotatably connected to the contact seat 41, one end of a measuring ruler 42 is fixed to the shaft 43, the other end of the measuring ruler 42 penetrates the contact seat 41 and is connected to a plug 44, and one end of the shaft 43 penetrating the contact seat 41 is connected to a knob for driving the shaft 43 to rotate;

[0062] Two recovery grooves are provided on both sides of the contact seat 41, and the recovery grooves are connected with inclined plane blocks 48 through springs 47. A plurality of limit grooves matching with the inclined plane blocks 48 are provided on both side walls of the slot 33, and the inclined plane blocks 48 are engaged in the limit grooves under the drive of the springs 47. Preferably, a handle is integrally formed on the top of one side of the contact seat 41, and a retracting groove for retracting the handle is provided on one side wall of the slot 33;

[0063] The surface of the contact seat 41 is provided with an arc-shaped groove 45 for fitting the patient's lower limbs. Both sides of the upper surface of the contact seat 41 are provided with slots adapted to the insert 44. The insert 44 is taken out of one of the slots and the measuring ruler 42 is pulled around the patient's lower limbs before being inserted into the other slot. It is worth noting that the arc length of the arc-shaped groove 45 is known.

[0064] A window hole for observing the reading of the measuring ruler 42 is provided on one side of the upper surface of the contact seat 41 near one of the slots, and a magnifying glass 46 for magnifying the reading is clamped in the window hole. In particular, in order for the magnifying glass 46 to clearly see the reading at the top edge of the slot corresponding to the measuring ruler 42, the magnifying glass 46 is tilted so that after the insert 44 is inserted into the other slot, the reading at the top edge of the slot corresponding to the remaining measuring ruler 42 on the shaft rod 43 can be read through the magnifying glass 46;

[0065] Specifically, when the contact seat 41 moves to the bottom of the patient's lower limb, the contact seat 41 is lifted upward by the handle so that the arc-shaped groove 45 on its surface fits with the patient's lower limb. In this state, the inclined block 48 will be engaged in the limit groove located above, so that the position of the contact seat 41 is fixed. At this time, the insert 44 is taken out, and then the measuring ruler 42 is pulled around the lower limb and inserted into another slot. At this time, the reading at the top edge of the slot corresponding to the remaining measuring ruler 42 on the shaft rod 43 is observed through the magnifying glass 46, and then the size of the arc-shaped groove 45 is added to obtain the circumference of the lower limb. It is worth noting that in order to enable quick calculation, the size of the arc-shaped groove 45 is an integer.

[0066] Specifically, when the visual lower limb circumference measuring instrument is working / in use:

[0067] 1. Assembly and preliminary adjustment: Assemble the fixture 10 on the edge of the bed, ensure that the U-shaped piece 11 can be firmly clamped on the bedside, adjust the length of the telescopic ruler 20 according to the standard positioning of the midpoint of the patella (such as 15 cm above and 10 cm below), and quickly determine the measurement position;

[0068] 2. Fix the U-shaped member 11: insert the U-shaped member 11 to the bedside at the position corresponding to the midpoint of the patient's patella, rotate the adjusting bolt 12, so that the splint 13 gradually touches the bottom of the bed board, ensure that the positions of the U-shaped member 11 and the extension support member 14 are fixed, and drive the corresponding position of the mattress to be concave;

[0069] For the arched lower limbs, the U-shaped member 11 is erected, and the positions of the splint 13 and the extended support member 14 are adjusted so that the arc-shaped grooves thereof can fit the lower limbs of the patient and provide support;

[0070] 3. Adjust the pressure pad unit 30:

[0071] Ensure that the main rod 31 and the extension pressure rod 32 press down the mattress so that its surface sinks into the depression, push the telescopic push rod 35, and move the two extension pressure rods 32 toward the patient's lower limbs together, while pressing down the mattress, creating conditions for the movement of the measuring unit 40.

[0072] 4. Measurement operation: When the contact seat 41 is moved to the lower part of the patient's lower limb, the contact seat 41 is lifted by the handle so that the arc-shaped groove 45 on its surface fits with the patient's lower limb. At this time, the inclined block 48 will be engaged in the upper limiting groove to fix the position of the contact seat 41;

[0073] Then, the insert 44 is removed, the measuring ruler 42 is pulled around the lower limb and inserted into another slot, and then the reading of the remaining measuring ruler 42 on the shaft 43 corresponding to the top edge of the slot is observed through the magnifying glass 46;

[0074] By adding the reading to the size of the arc groove 45, the circumference of the lower limb can be obtained.

[0075] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A visual lower limb circumference measuring instrument, comprising a clamp (10) mounted on the edge of a bed, characterized in that: The clamp (10) is equipped with two sets of telescopic rulers (20), and one end of the telescopic ruler (20) is connected to a pressure pad unit (30); The pressure pad unit (30) comprises a main rod (31) connected to the telescopic ruler (20), an extension pressure rod (32) is inserted into the main rod (31), and a measuring unit (40) is clamped on the extension pressure rod (32) via a clamping slot (33); The measuring unit (40) comprises a contact seat (41) which is clamped in the clamping slot (33); a retractable measuring ruler (42) is arranged in the contact seat (41); the extending pressing rod (32) slides forward in the main rod (31) and presses down the mattress at the position of the lower limb to be measured, so that the contact seat (41) can move to below the measuring position without touching the lower limb, and the circumference measurement is completed by the measuring ruler (42).

2. A visual lower limb circumference measuring instrument according to claim 1, characterized in that: The pressure pad unit (30) further comprises a front pressure wheel (34) rotatably connected to the end of the extension pressure rod (32); the other ends of the two extension pressure rods (32) are provided with a socket, and a telescopic push rod (35) is commonly inserted into the two sockets, so that the two extension pressure rods (32) can move together.

3. A visual lower limb circumference measuring instrument according to claim 2, characterized in that: The telescopic ruler (20) comprises a connecting tube (21) which is detachably fixed to the clamp (10), a graduated rod (22) being inserted into the connecting tube (21), and one end of the graduated rod (22) being connected to the main rod (31).

4. A visual lower limb circumference measuring instrument according to claim 3, characterized in that: The upper surfaces of the connecting tube (21) and the main rod (31) are both threadedly connected with a knob stud (50), so that the extended pressure rod (32) and the scale rod (22) can be fixed in position after being moved.

5. The visual lower limb circumference measuring instrument according to claim 1, characterized in that: The measuring unit (40) further comprises a shaft (43) rotatably connected to the contact seat (41); one end of the measuring ruler (42) is fixed to the shaft (43); the other end of the measuring ruler (42) passes through the contact seat (41) and is connected to an insert (44); and one end of the shaft (43) passing through the contact seat (41) is connected to a knob for driving the shaft to rotate.

6. A visual lower limb circumference measuring instrument according to claim 5, characterized in that: The surface of the contact seat (41) is provided with an arc-shaped groove (45) for fitting the patient's lower limbs, and slots matching the insert sheet (44) are provided on both sides of the upper surface of the contact seat (41). The insert sheet (44) is taken out of one of the slots and the measuring ruler (42) is pulled around the patient's lower limbs before being inserted into the other slot.

7. A visual lower limb circumference measuring instrument according to claim 6, characterized in that: A window hole for observing the reading of the measuring ruler (42) is provided on one side of the upper surface of the contact seat (41) close to one of the slots, and a magnifying glass (46) for magnifying the reading is clamped in the window hole, so that after the insert (44) is inserted into the other slot, the reading of the measuring ruler (42) remaining on the shaft rod (43) corresponding to the top edge of the slot can be read through the magnifying glass (46).

8. The visual lower limb circumference measuring instrument according to claim 6, characterized in that: Two recovery grooves are provided on both sides of the contact seat (41), and the recovery grooves are connected to inclined plane blocks (48) via springs (47). A plurality of limit grooves matching the inclined plane blocks (48) are provided on both side walls of the clamping groove (33), and the inclined plane blocks (48) are engaged in the limit grooves under the drive of the springs (47).

9. The visual lower limb circumference measuring instrument according to claim 1, characterized in that: The clamp (10) comprises a U-shaped member (11), the lower surface of the U-shaped member (11) being threadedly connected to an adjusting bolt (12), one end of the adjusting bolt (12) penetrating into the U-shaped member (11) being rotatably connected to a clamping plate (13), one end of the clamping plate (13) being slidably mounted on the inner wall of the U-shaped member (11).

10. The visual lower limb circumference measuring instrument according to claim 9, characterized in that: One end of the splint (13) and both ends of the U-shaped member (11) are connected with an extension support member (14) by providing a receiving groove, and one end of the extension support member (14) is provided with an arc groove for fitting the patient's lower limbs, so that the U-shaped member (11) can cooperate with the splint (13) to support the arched lower limbs of the patient after being erected, and the lower surface of the splint (13) and the upper surface and lower surface of the U-shaped member (11) are all threadedly connected with a knob bolt (15) for fixing the position of the extension support member (14) after being extended.

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