CN212879305U - Limb swelling monitoring device - Google Patents
Limb swelling monitoring device Download PDFInfo
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- CN212879305U CN212879305U CN202020713531.6U CN202020713531U CN212879305U CN 212879305 U CN212879305 U CN 212879305U CN 202020713531 U CN202020713531 U CN 202020713531U CN 212879305 U CN212879305 U CN 212879305U
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- displacement sensor
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Abstract
The utility model relates to a limbs swelling monitoring devices, it adopts and acts as go-between, the displacement sensor acts as go-between, carry on MCU's circuit board and shell cooperation and form limbs swelling monitoring devices, adopt this monitoring devices to supervise time measuring, will act as go-between and twine in surveyed limbs periphery, and the displacement sensor acts as go-between is used for detecting the length of acting as go-between and pulling out, and change it into the signal of telecommunication into it, MCU real-time acquisition on the circuit board acts as go-between displacement sensor's the signal of telecommunication, and handle this signal of telecommunication, finally obtain the girth of surveyed limbs, the girth that will survey the limbs and monitor obtaining at different moments is handled and is acquireed formation girth change curve, medical personnel can acquire limbs swelling degree and. Meanwhile, compared with the existing monitoring device, the detection device for limb swelling has higher accuracy.
Description
Technical Field
The utility model relates to a medical treatment electron technical field, concretely relates to limbs swelling monitoring devices.
Background
The limb swelling is a common clinical symptom, the health condition of the body can be known by observing swelling change, and diagnosis and treatment are facilitated, and the accuracy of observing the swelling change is very critical. At present, the swelling of limbs is observed in a visual estimation mode, a great error exists in accuracy, the real health condition cannot be accurately judged, and further treatment measures cannot be taken easily.
In view of this, the utility model discloses the people is to the numerous problems that the monitoring of limbs swelling exists, and deep conception, and then develop the utility model discloses.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a limbs swelling monitoring devices, it can improve limbs swelling measuring degree of accuracy.
In order to achieve the above object, the utility model adopts the following technical scheme:
a limb swelling monitoring device comprises a power supply device, a shell, a stay wire displacement sensor connected with the power supply device and a circuit board carrying an MCU (microprogrammed control unit), wherein the stay wire displacement sensor and the circuit board are arranged in the shell, and the stay wire displacement sensor is connected with the circuit board; one end of the stay wire is wound in the stay wire displacement sensor, and the other end of the stay wire is movably connected to the outer side of the shell.
The stay wire displacement sensor is a resistance type stay wire displacement sensor.
The pull wire displacement sensor comprises a wire coil and a center shaft penetrating through the wire coil, an elastic piece for resetting the wire coil is connected to the wire coil, a threaded resistance wire guide rail is arranged on the inner wall of the wire coil, a connecting rod is matched with the center shaft, one end of the connecting rod is sleeved on the center shaft, a contact abutting against the resistance wire guide rail is arranged at the other end of the connecting rod, a fire wire, a signal wire and a ground wire are arranged in the center shaft, the fire wire and the ground wire are both connected to the resistance wire guide rail, and the signal wire is connected to.
When the connecting rod moves to abut against the top surface of the wire coil, the contact point of the contact on the resistance wire guide rail is a first end point, and the first end point is connected to a live wire or a ground wire; when the connecting rod moves to abut against the bottom surface of the wire coil, the contact point of the contact on the resistance wire guide rail is a second end point, and the second end point is connected to the grounding wire or the live wire.
And the live wire and the grounding wire are respectively connected to two ends of the resistance wire guide rail.
One end of the connecting rod is provided with a movable hole, and the middle shaft is in keyed connection with the movable hole.
The shell is provided with a stay wire outlet and a wire buckle, the stay wire outlet and the wire buckle are respectively arranged on two side surfaces of the shell, and the two side surfaces are arranged in opposite surfaces.
And a guide wheel is arranged at the outlet of the pull wire of the shell.
Still be equipped with display screen and control button on the shell, this control button and display screen all are connected with the circuit board.
After the technical scheme is adopted, the utility model discloses a stay wire, the displacement sensor acts as go-between, carry on MCU's circuit board and shell cooperation and form limbs swelling monitoring devices, adopt this monitoring devices to supervise time measuring, will act as go-between and twine in surveyed limbs periphery, and the displacement sensor acts as go-between is used for detecting the length of acting as go-between and pulling out, and change it into the signal of telecommunication, MCU on the circuit board gathers the signal of telecommunication of acting as go-between displacement sensor in real time, and handle this signal of telecommunication, finally obtain the girth of being surveyed the limbs, the girth that will survey the limbs and monitor obtaining at different moments is handled and is acquireed formation girth change curve, medical personnel can acquire limbs swelling degree and trend directly perc. Meanwhile, compared with the existing monitoring device, the detection device for limb swelling has higher accuracy.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a sectional view of the present invention;
FIG. 3 is a schematic view of the structure of the housing of the present invention;
FIG. 4 is a schematic structural view of a stay wire displacement sensor (without a housing) according to the present invention;
FIG. 5 is a front view of the stay wire displacement sensor of the present invention;
fig. 6 is a top view of the stay wire displacement sensor of the present invention;
fig. 7 is a schematic diagram of the equivalent resistance effect of the first connection mode of the lead rail of the stay wire displacement sensor of the present invention;
fig. 8 is a schematic diagram of the equivalent resistance effect of the wire guide rail connection mode two of the pull wire displacement sensor of the present invention.
Detailed Description
Referring to fig. 1 to 2, the utility model discloses a limbs swelling monitoring devices, it includes power supply unit 5, shell 1, act as go-between 3, act as go-between displacement sensor 4 and carry on MCU's circuit board 2, wherein, act as go-between displacement sensor 4 and circuit board 2 connect power supply unit 5, act as go-between displacement sensor 4 and circuit board 2 set up in shell 1, and act as go-between displacement sensor 4 connecting circuit board 2, and 3 one end of acting as go-between is around locating in the displacement sensor 4 that acts as go-between, the other end then swing joint in the shell 1 outside.
As shown in fig. 3, the housing 1 has six sides, namely, a first side 11, a second side 12, a third side 13, a fourth side 14, a fifth side 15 and a sixth side 16, wherein the first side 11 and the second side 12 are disposed in an opposite manner, the third side 13 and the fourth side 14 are disposed in an opposite manner, and the fifth side 15 and the sixth side 16 are disposed in an opposite manner. The first side 11 is provided with a stay wire outlet 7, and the second side 12 is provided with a wire buckle 8 for fixing the stay wire 3. The third side 13 is an arc-shaped structure so as to be matched with the limb to be measured, and a display screen 6 can be arranged on the fourth side 14, and the display screen 6 is connected with the circuit board 2 and is used for displaying the limb swelling monitoring condition for the reference of medical staff. A control button 9 may be provided on the fifth side 15 or the sixth side 16 for controlling the operating state of the monitoring device, the control button 9 may also be provided on the fourth side 14.
At the outlet 7 of the casing 1, a guide wheel 10 can be arranged, and the arrangement of the guide wheel 10 can be used for restraining the stay wire 3 and protecting the stay wire 3, so as to avoid the abrasion of the stay wire 3 and the casing 1. The embodiment of the utility model provides a 7 departments of outlet of acting as go-between have set up two leading wheels 10, and two leading wheels 10 are all fixed inside shell 1.
The power supply device 5 may be formed by a battery or a power connection line connected to commercial power. When a battery is employed, the battery is disposed within the housing 1.
As shown in fig. 4 to 6, the pull wire displacement sensor 4 is a resistance-type pull wire displacement sensor, and includes a housing 41, a wire coil 42 fitted in the housing 41, and a central shaft 43 fixed in the housing 41 and penetrating through the wire coil 42; the wire coil 42 is cylindrical, and a threaded resistance wire guide 421 is provided on the inner wall thereof.
The periphery of the wire coil 42 is wound with a pull wire 3, the other end of the pull wire 3 is fixed on the wire coil 42, the other end of the pull wire 3 penetrates through a pull wire hole 411 on the shell 41 and penetrates through the wire outlet 7 of the shell 1 after passing through the guide wheel 10, and the end can be provided with a pull head for pulling the pull wire 3 during measurement.
The middle shaft 43 is fitted with a connecting rod 44, specifically, a movable hole 441 is formed at one end of the connecting rod 44, and the middle shaft 43 is keyed to the movable hole 441, so that the connecting rod 44 can slide axially along the middle shaft 43 but does not rotate. The utility model discloses make axis 43 the prism, form a plurality of stop surfaces. The other end of the connecting rod 44 is provided with a contact 442, the contact 442 abuts against the resistance wire guide 421, the movement of the contact 442 is limited by the resistance wire guide 421, and when the wire coil 42 rotates, the resistance wire guide 421 can make the contact 442 move axially along the central shaft 43.
The middle shaft 43 is provided with three wires, which are a live wire (VCC) 451, a signal wire 452, and a ground wire (GND) 453, wherein the live wire 451 and the ground wire 453 are both connected to the resistance wire guide rail 421, and the signal wire 452 is connected to the contact 442 to form a variable resistor.
Because the upside and the downside of contact 442 all contact with the resistance wire guide rail 421 of screw thread form, it is R' to establish the resistance value of round resistance wire guide rail 421, and this resistance value need consider when calculating, and resistance wire guide rail 421 can have two kinds of better connected modes with live wire 451, earth connection 453:
firstly, the live wire 451 and the grounding wire 453 are respectively connected to two ends of the resistance wire guide rail 421, in this connection mode, the contact 442 cannot move to the foremost end or the rearmost end of the guide rail 421, so the foremost end is provided with a fixed resistor R0, the rearmost end is provided with a fixed resistor R3, resistance wire guide rail resistors at the upper end and the lower end of the contact are respectively R1 and R2, wherein the resistance value of the whole resistance wire guide rail 421 is R, and R0 and R3 can be obtained by measuring the positions of the contact when the pull wire 3 is not pulled out and is fully pulled out, and are fixed values, and the resistance value is equivalent to R-R0-R' -R3 as shown in fig. 7, so that the length of the pull wire can be converted by sampling the voltage of the signal wire, and the connection mode is simple.
Secondly, on the basis of the first method, when the connecting rod 44 moves to abut against the top surface of the wire coil 42, the contact point of the contact 442 on the resistance wire guide rail 421 is the first end point 4211, when the connecting rod 44 moves to abut against the bottom surface of the wire coil 42, the contact point of the contact 442 on the resistance wire guide rail is the second end point 4212, the live wire 451 is connected to the first end point 4211 on the resistance wire guide rail 421, the grounding wire 453 is connected to the second end point 4212, that is, the resistance wire guide rail 421 between the first end point 4211 and the second end point 4212 is equivalent to a traditional adjustable resistor, and the resistance value is equivalent to R-R' as shown in fig. 8. Of course, the live line 451 may also be connected to the second terminal 4212, and accordingly, the ground line 453 is connected to the first terminal 4211.
The wire coil 42 is connected with an elastic element 46 for resetting the wire coil, the movable end of the elastic element 46 is fixed on the wire coil 42, and the fixed end of the elastic element is fixed on the middle shaft 43; the fixed end of the elastic member 46 may also be fixed to the housing 41; the elastic member 46 may be made of various elastic materials such as a torsion spring, and may be implemented to provide an elastic force for restoring the wire coil.
The housing 41 of the cable displacement sensor 4 can be omitted, and the wire coil 42, the center shaft 43 and the like can be directly arranged in the housing 1 of the monitoring device.
When the monitoring device is used for detecting limb swelling, firstly, the pull wire 3 is pulled out and wound on a detected limb, and the pull wire 3 is fixed on the wire buckle 8 of the shell 1; due to the elastic body 46 in the stay wire displacement sensor 4, the stay wire 3 is tightened to make the stay wire 3 cling to the limb to be measured.
Then starting a limb swelling monitoring device to start monitoring, wherein the monitoring is as follows: when the pull wire 3 is pulled out, the pull wire 3 drives the wire coil 42 to rotate, so that the contact 442 slides downwards along the central shaft 43. Due to the movement of the contact 442, the resistance values of the variable resistors formed by the three wires, the resistance wire guide rail 421 and the contact 442 are correspondingly changed, and the current voltage value can be obtained by sampling the voltage on the signal wire.
The MCU collects the voltage value on the signal wire of the stay wire displacement sensor 4 in real time at a set frequency, and converts the voltage value into the length of the pull wire pulled out.
And if the length of the pull wire pulled out is L, the distance from the wire buckle to the pull wire outlet on the device is L0, and the correction term is L1, the circumference of the detected limb is L + L0+ L1. The MCU reflects the circumferences of the detected limbs at different moments on a display screen in a curve mode.
After the monitoring is finished, the monitoring device is closed, one end of the stay wire is taken down from the wire buckle, and the stay wire is accommodated in the stay wire displacement sensor.
When pulling out the acting as go-between, certain elasticity can be saved to the elastic component 46 of the displacement sensor 4 that acts as go-between, and when one end of acting as go-between was taken off from the line buckle, the drum that the displacement sensor that acts as go-between was driven to the elastic component elasticity to accomodate to acting as go-between in the displacement sensor that acts as go-between. And (3) repeating the steps 1-3 when the next monitoring is carried out.
The utility model discloses a key lies in, the utility model discloses a 3 act as go-between, the displacement sensor 4 acts as go-between, carry on MCU's circuit board 2 and shell 41 cooperation formation limbs swelling monitoring devices, adopt this monitoring devices to supervise time measuring, will act as go-between 3 twine in surveyed limbs periphery, and act as go-between displacement sensor 4 is used for detecting the length of acting as go-between and pulling out, and change it into the signal of telecommunication, MCU real-time collection on the circuit board 2 acts as go-between displacement sensor's the signal of telecommunication, and handle this signal of telecommunication, finally obtain the girth of being surveyed the limbs. Compared with the existing monitoring device, the detection device for limb swelling has higher accuracy.
Furthermore, the utility model discloses a displacement sensor 4 acts as go-between designs resistance wire guide rail 421 and drum 42 into a part, 3 winding in the drum periphery act as go-between, and resistance wire guide rail 421 designs at drum 42 inner wall, has saved the space that a resistance wire coiled occupation for displacement sensor 4 volumes act as go-between are littleer, save space.
In addition, because the axis 43 key-type of acting as go-between displacement sensor 4 is connected in the movable hole of connecting rod 44 for connecting rod 44 can only be at epaxial axial displacement, and can not rotate, and resistance wire guide rail takes the contact to move in circumference when having avoided the drum to rotate, produces the error in calculating, has further ensured the utility model discloses monitoring device's the degree of accuracy.
The above description is only an embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.
Claims (9)
1. A limb swelling monitoring device, characterized in that: the pull wire displacement sensor and the circuit board are arranged in the shell, and the pull wire displacement sensor is connected with the circuit board; one end of the stay wire is wound in the stay wire displacement sensor, and the other end of the stay wire is movably connected to the outer side of the shell.
2. A limb swelling monitoring device according to claim 1, wherein: the stay wire displacement sensor is a resistance type stay wire displacement sensor.
3. A limb swelling monitoring device according to claim 2, wherein: the pull wire displacement sensor comprises a wire coil and a center shaft penetrating through the wire coil, an elastic piece for resetting the wire coil is connected to the wire coil, a threaded resistance wire guide rail is arranged on the inner wall of the wire coil, a connecting rod is matched with the center shaft, one end of the connecting rod is sleeved on the center shaft, a contact abutting against the resistance wire guide rail is arranged at the other end of the connecting rod, a fire wire, a signal wire and a ground wire are arranged in the center shaft, the fire wire and the ground wire are both connected to the resistance wire guide rail, and the signal wire is connected to.
4. A limb swelling monitoring device according to claim 3, wherein: when the connecting rod moves to abut against the top surface of the wire coil, the contact point of the contact on the resistance wire guide rail is a first end point, and the first end point is connected to a live wire or a ground wire; when the connecting rod moves to abut against the bottom surface of the wire coil, the contact point of the contact on the resistance wire guide rail is a second end point, and the second end point is connected to the grounding wire or the live wire.
5. A limb swelling monitoring device according to claim 3, wherein: and the live wire and the grounding wire are respectively connected to two ends of the resistance wire guide rail.
6. A limb swelling monitoring device according to claim 3, wherein: one end of the connecting rod is provided with a movable hole, and the middle shaft is in keyed connection with the movable hole.
7. A limb swelling monitoring device according to claim 1, wherein: the shell is provided with a stay wire outlet and a wire buckle, the stay wire outlet and the wire buckle are respectively arranged on two side surfaces of the shell, and the two side surfaces are arranged in opposite surfaces.
8. A limb swelling monitoring device according to claim 7, wherein: and a guide wheel is arranged at the outlet of the pull wire of the shell.
9. A limb swelling monitoring device according to claim 7, wherein: still be equipped with display screen and control button on the shell, this control button and display screen all are connected with the circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020713531.6U CN212879305U (en) | 2020-04-30 | 2020-04-30 | Limb swelling monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020713531.6U CN212879305U (en) | 2020-04-30 | 2020-04-30 | Limb swelling monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212879305U true CN212879305U (en) | 2021-04-06 |
Family
ID=75263166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020713531.6U Active CN212879305U (en) | 2020-04-30 | 2020-04-30 | Limb swelling monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212879305U (en) |
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2020
- 2020-04-30 CN CN202020713531.6U patent/CN212879305U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A limb swelling monitoring device Effective date of registration: 20230725 Granted publication date: 20210406 Pledgee: China Everbright Bank Limited by Share Ltd. Xiamen branch Pledgor: Xiamen Zhong Ling Yi Yong Technology Co.,Ltd. Registration number: Y2023980049760 |