Description:FORM 2
The Patents Act 1970
(39 of 1970)
&
The Patent Rules 2003
COMPLETE SPECIFICATION
(See Section 10 and rule 13)
1. TITLE: SMART PROSTHETIC FOR LOWER LIMB AMPUTEES
2. APPLICANT(S)
Name in Full Nationality Address of the Applicant
ACIC MIET MEERUT FOUNDATION INDIA House No. NH-58 Near Baghpat Bypass Crossing, MIET Meerut, Uttar Pradesh-250005, India
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PRAKHAR AUSTIN MOHAN INDIA House No. H.NO. 222, ST. THOMAS MISSION COMPOUND, NEAR BACCHA PARK , MEERUT-250001
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RISHABH JAIN INDIA House No. NEHRU ROAD JAIN GALI BARAUT BAGHPAT, 250611, U.P.
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KAPIT INDIA House No. VILLAGE- SATWAI, MEERUT- 250502 UTTAR PRADESH
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DIVYA SINGHAL INDIA House No. GANDHI ROAD JAGDEESH PURI GALI NO 2 ,BARAUT BAGHPAT, 250611, BAGHPAT, U.P.
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VANSH TIWARI INDIA House No. 14/309 , NEW RAM NAGAR, BINAULI ROAD , NEAR BINAULI BUS STAND , BARAUT 250611
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AMRENDER SINGH INDIA House No. B- 476 DEFENCE ENCLAVE KANKER KHERA MEERUT CANTT, 250001, MEERUT
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3. PREAMBLE OF THE DESCRIPTION: The following COMPLETE specification particularly describes the disclosure and the manner in which it is performed.
FIELD OF THE DISCLOSURE
The present disclosure generally relates to prosthetics. More specifically, the present disclosure relates to a smart prosthetic for lower limb amputees and a method for working thereof. The smart prosthetics can be prosthetic leg or ankle. The smart prosthetics is useful for lower limb amputees having leg amputated in vicinity of knee thereof.
BACKGROUND
A person who has lower limb amputated, may have leg or a portion thereof amputated either just below the knee or from above the knee or in vicinity to the knee. There are many prosthetics available in the art which include artificial leg or ankle to support the amputated leg. Now, there have been many developments in the art that these days, the prosthetics may provide live feeling of having the leg to the amputees.
One of such conventional arts involve a motor and Electromyography (EMG) sensor to actuate real movement of the prosthetics. The EMG sensor has three knobs which are pasted on tibial muscles of the amputee. The EMG sensor measures electrical activity of a muscle, depending the amount of activity in the selected muscle. Wearing such a sensor with three knobs pasted on the skin, is quite uncomfortable for the amputee. In addition, three knobs make the EMG sensor quite bulky. Moreover, it is quite complicated to align the prosthetic in the EMS sensor with three knobs in the same area. The EMG sensor is quite costly also.
Another development in the conventional arts is to replace EMG sensor by Force Sensing Resistor sensor (FSR). The FSR sensor is advantageous over EMG sensor as the FSR sensor has just one knob to be pasted on the skin, thereby making it quite light-weight. The FSR sensor is very thin and light-weight, and cheaper as compared to that of the EMG sensor. In addition, the FSR sensor is ergonomically better over the EMG sensor. One of the conventional arts having FSR sensor discloses a system and method for controlling a prosthetic limb. A sensor component receives input from a wearer's muscle and provides a signal to a control component. The sensor component may be a force sensing resistor placed inside a socket of a prosthetic limb between a residual limb and the hard side of the socket. The control component processes the signal and provides instructions to an actuation component. In this manner, an actuation component may move a joint, or may change the velocity of a joint, or may change other characteristics of the prosthetic limb. However, the above conventional art has a limitation that the motor is aligned just on the foot. Therefore, whole burden of the amputees’ body comes on motor, thereby resulting in requirement of high torque motor. Also, such conventional arts are applicable only for walking purposes but not for biking. The biking involves gearing and braking. Each thereof may require prosthetics with separate technical adjustments. None of the conventional arts is able to perform three functions- walking, braking and gearing (biking) in one-go.
Therefore, there exists a need for developing alternative to get rid of aforementioned problems.
OBJECTS OF THE PRESENT DISCLOSURE
An object of the present disclosure is to overcome one or more drawbacks associated with conventional mechanisms.
Another object of the present disclosure is to disclose a smart prosthetics for the lower limb amputees.
Another object of the present disclosure is to disclose the smart prosthetics for the lower limb amputees such that the amputee is able to walk, and biking (gearing and braking) without requiring any alteration in technical specifications or external accessories.
Another object of the present disclosure is to disclose the smart prosthetics for the lower limb amputees such that the prosthetics is a light weight and less costly.
Another object of the present disclosure is to disclose the smart prosthetics for the lower limb amputees such that the prosthetics is applicable for the amputees having lower limb amputated in vicinity of knee i.e. below knee.
Another object of the present disclosure is to disclose the smart prosthetics for the lower limb amputees such that the prosthetics requires a motor of very less torque in the range of 18 to 20 Nm.
Another object of the present disclosure is to disclose the smart prosthetics for the lower limb amputees such that the prosthetics is to generate alerts and provide GPS location in case of emergencies instantly.
Another object of the present disclosure is to disclose the smart prosthetics for the lower limb amputees such that the prosthetics is able to fulfil desire of the amputees to drive bikes, which may provide them source of income, relief and enjoyment, and better life.
Another object of the present disclosure is to disclose the smart prosthetics for the lower limb amputees such that the prosthetics makes the amputees self-dependent.
Another object of the present disclosure is to disclose the smart prosthetics for the lower limb amputees such that the prosthetics is modular and hence easy to carry in a bag.
SUMMARY
Various objects, features, aspects and advantages of the inventive subject matter will become more apparent from the following detailed description of preferred embodiments, along with the accompanying drawing figures in which like numerals represent like components.
In an aspect, the present disclosure discloses a smart prosthetic (100) for lower limb amputees. The prosthetic (100) includes a first segment (102) having a L-shaped support (102A) that binds with a point of contact of an amputated leg portion where the prosthetics is to be attached, through a plurality of flexible strips (102B); and an extended cylindrical portion (102C) extending from base of the L-shaped support (102A) to further attach to a second segment (104). The second segment (104) includes a customized cylindrical hollow rod removably fit into the extended cylindrical portion (102C). A third segment (106) includes a cylindrical portion (106A) removably fit over the second segment (104); a servo motor (106B) connected to the cylindrical portion (106A), the motor (106B) to actuate movement of a foot with respect to contractions and expansions by leg tibialis anterior muscles; and a four-bar linkage (106C) connected to the motor (106B). The linkage (106C) includes a first bar (106C1) of elongated oval shape as a crank rotatable at an angle in clockwise or anti-clockwise direction; a second bar (106C2) as a coupler attached to one end of the first bar (106C1) through a revolute joint at one end, rotatable at an angle in forward or backward direction; a third bar (106C3) in the shape of a foot as a follower attached to another end of the second bar (106C2), rotatable at an angle in forward or backward direction; and a fourth bar (106C4) comprising a motor housing that is fixed and having a motor therein. Force applied on the fourth bar (106C4) in either in forward or backward direction, causes the first bar (106C1), the second bar (106C2), and the third bar (106C3) to move in accordance with that of the fourth bar (106C4), following a four-bar linkage mechanism. A Force Sensing Resistor (FSR) sensor (108) is affixed onto a tibialis muscle area in vicinity to the implanted prosthetic (100). A microcontroller is in communication with the FSR sensor (108), the microcontroller accomplishing following tasks as comprising:
receiving the sensor data of the FSR sensor (108);
mapping change in force exerted on the FSR sensor (108) with motion of muscle;
controlling movements of the third bar (106C3);
The first and second bars (106C1, 106C2) when in line with each other, lock themselves thereby not allowing the foot or third bar (106C3) to rotate beyond a first locking position (110A) else the third bar (106C3) rotatable in upward and downward directions depending upon amount of force exerted on the second segment (104) which gets transferred onto an ankle joint of the third bar (106C3) directly in forward gearing while the foot or third bar (106C3) in contact with casing of the motor (106B) does not go beyond a second locking position (110B) and force from the third bar (106C3) directly transfers to gear in backward gearing.
In another aspect of the present disclosure, a method (200) for assisting a lower limb amputee through a smart prosthetic (100) is disclosed. The method (200) involves assembling a first segment (102), a second segment (104), and a third segment (106) such that the second segment (104) removably fits into the first segment (102) and the third segment (106) removably fits into the second segment (106), followed by implanting the prosthetic (100) to an amputated leg portion by fastening a L-shaped support (102A) of a first segment (102) with an amputated leg portion through a plurality of flexible strips (102B). Then, the method (200) involves sensing amount of force exerted by the FSR sensor (108) placed on tibial muscle area in vicinity of the implanted prosthetic (100) and mapping change in force exerted on the FSR sensor (108) with motion of muscle. Thereafter, the method (200) involves rotating a motor (106B) attached to a cylindrical portion (106A) of the third segment (106) as influenced by amount of force exerted by the second segment (104) to cause movement, followed by controlling movements of the third bar (106C3) based upon directional force applied on the fourth bar (106C4).
BRIEF DESCRIPTION OF THE DRAWINGS
Other objects, features, and advantages of the embodiment will be apparent from the following description when read with reference to the accompanying drawings. In the drawings, wherein like reference numerals denote corresponding parts throughout the several views:
Referring to Figure 1A, shows a schematic view of a smart prosthetic (100), in accordance with an illustrative embodiment of a present disclosure;
Referring to Figure 1B, shows a schematic view of the smart prosthetic (100) with FSR sensor, in accordance with the illustrative embodiment of the present disclosure;
Referring to Figure 1C, shows a schematic view of disengagement of various components of the smart prosthetic (100) to represent a modular arrangement, in accordance with the illustrative embodiment of the present disclosure;
Referring to Figures 1D-1G, show schematic views of alignment of a foot of the smart prosthetic (100) while braking and gearing respectively, in accordance with the illustrative embodiment of the present disclosure;
Referring to Figure 2, shows a flowchart depicting steps of a method (200) for the smart prosthetic (100) assisting the amputee for walking, braking, and gearing, in accordance with another illustrative embodiment of the present disclosure.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
The following discussion provides many example embodiments of the inventive subject matter. Although each embodiment represents a single combination of inventive elements, the inventive subject matter is considered to include all possible combinations of the disclosed elements. Thus, if one embodiment comprises elements A, B, and C, and a second embodiment comprises elements B and D, then the inventive subject matter is also considered to include other remaining combinations of A, B, C, or D, even if not explicitly disclosed. The embodiments herein and the various features and advantageous details thereof are explained more fully with reference to the non-limiting embodiments that are illustrated in the accompanying drawings and detailed in the following description. Descriptions of well-known components and processing techniques are omitted so as to not unnecessarily obscure the embodiments herein. The examples used herein are intended merely to facilitate an understanding of ways in which the embodiments herein may be practiced and to further enable those of skill in the art to practice the embodiments herein. Accordingly, the examples should not be construed as limiting the scope of the embodiments herein.
Many modifications will be apparent to those skilled in the art without departing from the scope of the present invention as hereinbefore described with reference to the accompanying drawings.
Throughout this specification and the claims which follow, unless the context requires otherwise, the word “comprise”, and variations such as “comprises” and “comprising”, will be understood to imply the inclusion of a stated integer or step or group of integers or steps but not the exclusion of any other integer or step or group of integers or steps.
As used herein, the singular forms “a”, “an”, “the” include plural referents unless the context clearly dictates otherwise. Further, the terms “like”, “as such”, “for example”, “including” are meant to introduce examples which further clarify more general subject matter, and should be contemplated for the persons skilled in the art to understand the subject matter.
Figure 1A shows a schematic view of a smart prosthetic (100) for lower limb amputees. The lower limb i.e. leg is amputated either from below a knee or in vicinity thereto.
The prosthetic (100) may be divided into three segments: a first segment (102), a second segment (104), and a third segment (106), schematic view shown in Figure 1B. Each of the first, second, and third segments (102, 104, 106) removably attach to each other, as shown in Figure 1C.
The first segment (102) defines a L-shaped support (102A) that binds with a point of contact of an amputated leg portion where the prosthetics is to be attached. The L-shaped support (102A) is a half-cuplike shape configured to fit over the amputated leg portion of the amputee. Such an amputated leg portion may be either from below a knee or in vicinity thereto. The L-shaped support (102A) may be attached to the amputated leg portion through multiple flexible strips (102B) sewn through corresponding holes in the L-shaped support (102A). The first segment (102) also includes an extended cylindrical portion (102C) extending from base of the L-shaped support (102A). The first segment (102) may be made up of a flexible material which is convenient to the amputee. The extended cylindrical portion (102C) is further attached to a second segment (104) as discussed hereinbelow.
The second segment (104) includes a customized cylindrical hollow rod removably and snugly fit into the extended cylindrical portion (102C). In such an embodiment, the second segment (104) is of lesser diameter than that of the extended cylindrical portion (102C). In alternative embodiments, the second segment (104) removably and snugly fit over the extended cylindrical portion (102C). In such an embodiment, the second segment (104) is of greater diameter than that of the extended cylindrical portion (102C).
The third segment (106) includes a cylindrical portion (106A) which may be removably fit into the second segment (104). In such an embodiment, the cylindrical portion (106A) is of greater diameter than that of the second segment (104).
The above alignment of the first, second, and third segments (102, 104, 106) makes the prosthetic (100) easily portable, also easy to carry in a bag.
Looping back to Figure 1B, the third segment (106) includes a servo motor (106B) connected to the cylindrical portion (106A). The motor (106B) is configured to actuate movement of a foot with respect to contractions and expansions by leg muscles- tibialis muscles (dorsiflexion and plantar flexion). The motor (not shown) is of very moderate torque i.e. merely 20 Nm. The motor is a geared motor. As it is well known in the art that amount of force required to apply a brake in a vehicle using a brake pedal is around 100 N and 153 Nm. Hence, in such a scenario the motor in the conventional arts has a torque of 153 Nm, thereby making the prosthetic (100) quite bulky. Also, entire body weight of the amputee does not exert burden on the motor. It is transferred to ground through a pin joint 9 in the segment (106). A fraction amount of body weight is transferred only at the time of walking and braking and gearing operations which is transferred through four bar linkage attached to the motor.
The third segment (106) includes a four-bar linkage (106C). The four-bar linkage (106C) includes a first bar (106C1) of elongated oval shape as a crank rotatable at an angle in forward or backward direction; a second bar (106C2) as a coupler attached to one end of the first bar (106C1) through a revolute joint at one end. The second bar (106C2) is also rotatable at an angle in forward or backward direction. A third bar (106C3) in the shape of a foot as a follower attached to another end of the second bar (106C2). The third bar (106C3) is also rotatable at an angle in forward or backward direction. A fourth bar (106C4) is defined as a motor housing that is fixed and having a motor therein. The fourth bar (106C4) is connected to another end of the first bar (106C1). The force applied on the fourth bar (106C4) in either in forward or backward direction causes the first bar (106C1), the second bar (106C2), and the third bar (106C3) to move in accordance with that of the fourth bar (106C4), following a four-bar linkage mechanism.
In the embodiment, the second segment (104) is cut to adjust implantation of the prosthetic (100) as per height of the amputee.
The third bar (106C3) has a plane area PP’ extended to bend into a sloppy area SS’ and comprising circuitry therein. The third bar (106C3) having a second end of the fourth bar (106C4) connected to a middle point of the sloppy area SS’. The third bar (106C3) also has an ankle joint JJ’. Another end of the fourth bar (104C4) is connected by revolute joint with the third bar (106C3) i.e., joint JJ.
As shown in Figure 1B, the prosthetic (100) also includes a Force Sensing Resistor (FSR) sensor (108) is affixed onto a tibialis muscle area in vicinity to the implanted prosthetic (100). The FSR sensor (108) to map tibialis muscle motion i.e. dorsiflexion and plantar flexion to provide signal to the motor (106B), wherein force applied on the FSR sensor (108) influences force resistance to rotate the motor. The FSR sensor (108) is connected to the prosthetic (100) through a flexible wire (108A). The FSR sensor (108) has only one knob to be pasted on the muscle, thus providing convenience to the amputee.
The prosthetic (100) further includes a microcontroller in communication with the FSR sensor (108), which when associated with multiple modules. An input module is configured to receive the sensor data of the FSR sensor (108). A mapping module is configured to map change in force exerted on the FSR sensor (108) with motion of muscle.
In an embodiment, the first and second bars (106C1, 106C2) when in line with each other, lock themselves as shown in Figure 1E. Consequently, the third bar (106C3) is also locked and not allowed to rotate. Such an alignment causes the third bar (106C3) to move a downward step while walking. In an embodiment, such an alignment causes the third bar (106C3) to exert force to apply brake of a bike.
Otherwise, when the first and second bars (106C1, 106C2) when not in line with each other i.e. at angle to each other, the third bar (106C3) is rotatable in upward and downward directions depending upon amount of force exerted on the second segment (104)which gets transferred onto ankle joint of the third bar (106C3) directly rather than on the motor. In such an embodiment, the third bar (106C3) exerts force to move upward or downward to take further step while walking when the first and second bars (106C1, 106C2) in line with each other and allow the third bar (106C3) to rotate. Such embodiments are shown in Figures 1D to 1E respectively. In alternate embodiment, the third bar (106C3) exerts force to move upward or downward for forward and backward gearing in the bike when the first and second bars (106C1, 106C2) in line with each other and do not allow the third bar (106C3) to rotate. Such embodiments are shown in Figures 1D to 1G respectively.
As shown in Figures 1D and 1E, the first and second bars (106C1, 106C2) when in line with each other, lock themselves thereby not allowing the foot or third bar (106C3) to rotate beyond a first locking position (110A) else the third bar (106C3) rotatable in upward and downward directions depending upon amount of force exerted on the second segment (104) which gets transferred onto an ankle joint of the third bar (106C3) directly in forward gearing. As shown in Figures 1F and 1G, the foot or third bar (106C3) in contact with casing of the motor (106B) does not go beyond a second locking position (110B) and force from the third bar (106C3) directly transfers to gear in backward gearing.
The prosthetic (100) also includes a GPS sensor to determine location coordinates of the amputee. The microcontroller also includes an emergency notification module to notify relatives in case of emergency. The prosthetic (100) includes a joystick for manual control of the prosthetic (100) in case the FSR sensor (108) stops working. There is a SOS button to be pressed in case of emergency. The prosthetic may be a leg or an ankle. The prosthetic (100) also includes a mpu sensor to sense falling of the amputee.
There is also provided an auxiliary power supply from a bike in case battery of the prosthetics (100) runs low. The battery provides power supply to the sensors of the prosthetics (100).
In some embodiments, the prosthetic (100) is in communication with an electronic device through internet of things (IoT), the electronic device has applications through which notifications or alerts are sent. There may be a joystick feature in the application using ESP to ESP communication.
Figure 2A discloses a flowchart depicting a method (200) for assisting a lower limb amputee through a smart prosthetic (100). The method (200) involves assembling the first segment (102), the second segment (104), and the third segment (106) , followed by implanting the prosthetic (100) to an amputated leg portion by fastening a L-shaped support (102A) of a first segment (102) with an amputated leg portion through a plurality of flexible strips (102B). Then, the method (200) involves sensing amount of force exerted by the FSR sensor (108) placed on tibial muscle area in vicinity of the implanted prosthetic (100). Thereafter, the method (200) involves mapping change in force exerted on the FSR sensor (108) with motion of muscle, followed by rotating the motor as influenced by amount of force exerted second segment (104) which gets transferred onto an ankle joint of the third bar (106C3) directly to cause movement and controlling movements of the third bar (106C3) based upon rotation of the motor (106B).
, Claims:We Claim
1. A smart prosthetic (100) for lower limb amputees, the prosthetic (100) comprising:
a first segment (102) comprising:
a L-shaped support (102A) that binds with a point of contact of an amputated leg portion where the prosthetics is to be attached, through a plurality of flexible strips (102B); and
an extended cylindrical portion (102C) extending from base of the L-shaped support (102A) to further attach to a second segment (104);
the second segment (104) comprising a customized cylindrical hollow rod removably fit into the extended cylindrical portion (102C); and
a third segment (106) comprising:
a cylindrical portion (106A) removably fit into the second segment (104);
a servo motor (106B) connected to the cylindrical portion (106A), the motor (106B) to actuate movement of a foot with respect to contractions and expansions by leg tibialis anterior muscles;
a four-bar linkage (106C) connected to the motor (106B), the linkage (106C) comprising:
a first bar (106C1) of elongated oval shape as a crank rotatable at an angle in forward or backward direction;
a second bar (106C2) as a coupler attached to one end of the first bar (106C1) through a revolute joint at one end, rotatable at an angle in forward or backward direction;
a third bar (106C3) in the shape of a foot as a follower attached to another end of the second bar (106C2), rotatable at an angle in forward or backward direction; and
a fourth bar (106C4) comprising a motor housing that is fixed and having a motor therein, the fourth bar (106C4) connected to another end of the first bar (106C1);
wherein force applied on the fourth bar (106C4) in either in forward or backward direction, causes the first bar (106C1), the second bar (106C2), and the third bar (106C3) to move in accordance with that of the fourth bar (106C4), following a four-bar linkage mechanism;
a Force Sensing Resistor (FSR) sensor (108) affixed onto a tibialis muscle area in vicinity to the implanted prosthetic (100), the FSR sensor (108) to map tibialis muscle motion to provide signal to the motor, wherein force applied on the FSR sensor (108) influences force resistance to rotate the motor;
a microcontroller in communication with the FSR sensor (108), the microcontroller accomplishing following tasks as comprising:
receiving the sensor data of the FSR sensor (108);
mapping change in force exerted on the FSR sensor (108) with motion of muscle;
controlling movements of the third bar (106C3);
wherein the first and second bars (106C1, 106C2) when in line with each other, lock themselves thereby not allowing the foot or third bar (106C3) to rotate beyond a first locking position (110A) else the third bar (106C3) rotatable in upward and downward directions in forward gearing while the foot or third bar (106C3) in contact with casing of the motor (106B) does not go beyond a second locking position (110B) and force from the third bar (106C3) directly transfers to gear in backward gearing.
2. The prosthetic (100) as claimed in claim 1, wherein the first, second, and third segments (102, 104, 106) removably attach to each other and hence portable and foldable.
3. The prosthetic (100) as claimed in claim 1, wherein the foot (106C4) moves a downward step while walking when the first and second bars (106C1, 106C2) being in line with each other, and lock themselves to not allow the third bar (106C3) to rotate.
4. The prosthetic (100) as claimed in claim 1, wherein the third bar (106C3) exerts force to apply brake of a bike when the first and second bars (106C1, 106C2) being in line with each other, and lock themselves to not allow the third bar (106C3) to rotate.
5. The prosthetic (100) as claimed in claim 1, wherein movement of the third bar (106C3) is locked when the first and second bars (106C1, 106C2) are inline, and force gets transferred in downward direction only.
6. The prosthetic (100) as claimed in claim 1, third bar (106C3) exerts force to move upward or downward to take further step while walking when the first and second bars (106C1, 106C2) in line with each other and prevents the third bar (106C3) to rotate.
7. The prosthetic (100) as claimed in claim 1, wherein the prosthetic (100) comprising a GPS sensor to determine location coordinates of the amputee.
8. The prosthetic (100) as claimed in claim 1, wherein the prosthetic (100) comprising emergency notification module to notify relatives in case of emergency.
9. The prosthetic (100) as claimed in claim 1, wherein the prosthetic (100) comprising a joystick for manual control of the prosthetic (100) in case the FSR sensor (108) stops working.
10. The prosthetic (100) as claimed in claim 1, wherein the prosthetic (100) comprising a SOS button to be pressed in case of emergency.
11. The prosthetic (100) as claimed in claim 1, wherein the prosthetic comprising a leg or an ankle.
12. The prosthetic (100) as claimed in claim 1, wherein the leg is amputated either from below a knee or in vicinity thereto.
13. The prosthetic (100) as claimed in claim 1, wherein the second segment (104) is cut to adjust implantation of the prosthetic (100) as per height of the amputee.
14. The prosthetic (100) as claimed in claim 1, wherein the prosthetic (100) comprising an mpu sensor to sense falling of the amputee.
15. The prosthetic (100) as claimed in claim 1, wherein the prosthetic (100) is in communication with an electronic device through internet of things (IOT), the electronic device comprising applications through which notifications or alerts are sent.
16. A method (200) for assisting a lower limb amputee through a smart prosthetic (100), the method (200) comprising:
assembling a first segment (102), a second segment (104), and a third segment (106) such that the second segment (104) removably fits into the first segment (102) and the third segment (106) removably fits into the second segment (106);
implanting the prosthetic (100) to an amputated leg portion by fastening a L-shaped support (102A) of a first segment (102) with an amputated leg portion through a plurality of flexible strips (102B);
sensing amount of force exerted by the FSR sensor (108) placed on tibialis muscle area in vicinity of the implanted prosthetic (100);
mapping change in force exerted on the FSR sensor (108) with motion of muscle;
rotating a motor (106B) attached to a cylindrical portion (106A) of the third segment (106) as influenced by amount of force exerted by the second segment (104) to cause movement; and
controlling movements of the third bar (106C3)based upon directional force applied on the fourth bar (106C4).
17. The method (200) as claimed in claim 16, wherein the method (200) comprising preventing the third bar (106C3) to rotate when the first and second bars (106C1, 106C2) are in line with each other and get locked to move beyond a first locking position (110A) in forward gearing.
18. The method (200) as claimed in claim 17, wherein the method (200) comprising causing the third bar (106C3) to move a downward step while walking when the first and second bars (106C1, 106C2) being in line with each other, and lock themselves to not allow the third bar (106C3) to rotate beyond the first locking position (110A).
19. The method (200) as claimed in claim 17, wherein the method (200) comprising causing the third bar (106C3) to exert force to apply brake of a bike when the first and second bars (106C1, 106C2) being in line with each other, and lock themselves to not allow the third bar (106C3) to rotate beyond the first locking position (110A).
20. The method (200) as claimed in claim 17, wherein the method (200) comprising causing the third bar (106C3) to apply force to move upward or downward for gearing when the first and second bars (106C1, 106C2) in line with each other and allow the third bar (106C3) to rotate.
21. The method (200) as claimed in claim 17, wherein the method (200) comprising causing third bar (106C3) to exert force to move upward or downward to take further step while walking when the first and second bars (106C1, 106C2) in line with each other and allow the third bar (106C3) to rotate.
22. The method (200) as claimed in claim 17, wherein the method (200) comprising sensing location coordinates of the amputee.
23. The method (200) as claimed in claim 17, wherein the method (200) comprising notifying relatives in case of emergency.
24. The method (200) as claimed in claim 17, wherein the method (200) comprising sensing falling down of the amputee having the implanted prosthetic (100).
25. The method (200) as claimed in claim 17, wherein the method (200) comprising controlling the prosthetic (100) manually through a joystick in case the FSR sensor (108) stops working.
26. The method (200) as claimed in claim 17, wherein the method (200) comprising pressing a SOS button in case of emergency.
27. The method (200) as claimed in claim 17, wherein the method (200) comprising causing the foot or third bar (106C3) to come in contact with casing of the motor (106B) and not allowed go beyond a second locking position (110B) and force from the third bar (106C3) directly transfers to gear in backward gearing.

Dated: 1st of January, 2024 Signature

Neha Goyal
(IN/PA-4398)