Description:The ALLIS Device (100) represents a ground-breaking solution to the challenges encountered in acquiring accurate and precise 3D contour data for leftover limbs in medical applications. This innovative device revolutionizes the contour acquisition process, ensuring stability and comfort for the patient while obtaining high-quality data crucial for prosthetic design, surgical planning, and other medical applications. Crafted with utmost care, the ALLIS device (100) combines safety, durability, and patient comfort in its design. It is constructed using materials that prioritize the well-being of the patient, providing a secure and comfortable experience during contour acquisition. The device's adjustability allows it to accommodate a wide range of sizes and shapes of leftover limbs, ensuring a personalized fit for everyone. Its effortless attachment and detachment from contour acquisition unit streamline the overall process, makes it efficient and user-friendly.
The core components of the ALLIS Device (100) include the supporting unit (200), leftover limb holding unit (300), rotating unit (400), sliding unit (500), 3D contour acquisition unit (600), and Plast-Ex fabrication Unit (700).
A supporting unit (200) that plays a crucial role in ensuring the stability and reliability of the entire system. Comprising the base (201) and the support smooth rods (205), the supporting unit (200) serves as the foundation for maintaining the structural integrity of the ALLIS device (100). The base (201) forms the primary support structure for the system and consists of several components that contribute to its stability. These components include the base plate (204), vertical pillars (202), and curved plate (203) mounted at the top of the vertical pillars (202). Together, these elements securely hold and position the front face plate (301) and back face plate (304) of the device. At the bottom of the base (201), a base plate (204) is positioned, providing a reliable and robust platform for key components such as the front face plate (301), back face plate (304), rotating unit (400), and 3D contour acquisition system (600). This strategic placement ensures that the entire system remains firmly supported and stationary during the contour acquisition process.
The steadfast support provided by the smooth rods (205) of the supporting unit (200) minimizes any undesired movement or shifting by holding the different units firmly in a proper position, that could potentially compromise the accuracy and completeness of the acquired 3D contour data. By maintaining a stable and secure foundation, the supporting unit (200) ensures precise and reliable measurements of the leftover limb, resulting in accurate data capture. Through the incorporation of the supporting unit (200), the present invention enhances the overall stability and performance of the device, providing a reliable and steadfast platform for the contour acquisition process. This feature guarantees the acquisition of high-quality 3D contour data, minimizing errors and producing accurate results for improved patient care and treatment planning.
The Leftover limb holding unit (300) consists of the front face plate (301) and back face plate (304) that are required to hold the leftover limb positioned correctly which provide stability to the ALLIS Device. The front limb grippers (302) and front grippers adjusting screws (303) are mounted on the front face plate (301). The patient's leftover limb is inserted into the device through the front face plate (301). The front face plate (301) is designed to be allowing the limb to be positioned securely and comfortably for contour acquisition. Their primary function is to securely hold the leftover limb in place. It has front limb grippers (302) mounted on it which helps to give tighten support to the leftover limb so that there is no movement while data acquisition process. Over the front limb grippers (302) there are adjusting screws (303) which helps in tightening of the grippers (302).
A novel front limb gripper (302) is introduced, offering a flexible and expandable structure with an inlet specifically designed for the insertion of patients' leftover limbs. This unique design feature facilitates easy and comfortable placement of the limb within the device for contour acquisition purposes. To ensure optimal comfort and accommodate patients with varying sizes of leftover limbs, the front limb gripper (302) incorporates front gripper adjusting screws (303). These adjusting screws (303) allow for precise customization of the front limb gripper (302) according to the individual patient's limb dimensions. The front gripper adjusting screws (303) provide a convenient means of adjusting the front limb gripper (302), enabling healthcare professionals to fine-tune the grip and fit of the device to match the specific dimensions of each patient's leftover limb. This adjustable design feature enhances the overall comfort and stability during the contour acquisition process, minimizing any potential discomfort or movement that could introduce errors in the measurements. By providing a comfortable and customizable solution for limb placement, the front limb gripper (302) with adjustable design and front gripper adjusting screws (303) significantly improves the accuracy and reliability of the contour acquisition procedure, leading to more precise and error-free dimensioning of leftover limbs. The materials used for front limb grippers (302) is meticulously chosen to prioritize safety, durability, and comfort and ensures that discomfort is not provided to patients throughout the contour acquisition procedure.
The unthreaded holes (308) on the circumference of the front face plate (301) are made to pass the smooth rod (205) which provide support to the front face plate (301) and help it to be intacted linearly.
A back face plate (304) as a critical component of the ALLIS Device (100), positioned on the rear side of the system and securely held in place by the base (201) for stability during operation. The back face plate (304) incorporates essential features to optimize the contour acquisition procedure and improve the overall patient experience. The back face plate (304) is equipped with a handled shaft with end gear (403), enabling precise control over the movement of the 3D contour acquisition unit (600). Additionally, handles are provided on the shaft with end gear (403) and the threaded rod (501), which passes through holes (307) on the circumference of the back face plate (304). These handles facilitate precise adjustments to the positioning of the device, ensuring accurate and customized contour acquisition for individual patients.
The back face plate (304) includes the back limb gripper (305) and back gripper adjusting screw (306), offering further adjustability based on the patients' leftover limb size. The back limb gripper (305) provides flexibility and comfortable positioning, while the back gripper adjusting screw (306) enables precise fine-tuning to meet individual requirements. This customization feature allows for optimal fitting and enhances patient comfort throughout the contour acquisition procedure. To ensure the highest standards of safety, durability, and comfort, meticulous care is taken in the selection of materials for the back limb gripper (305). This scrutiny guarantees that the materials used do not pose any harm or discomfort to patients during the scanning process.
The back face plate (304) assumes a critical role in the stability and accuracy of the 3D contour acquisition process for leftover limbs. It features holes (307) near its circumference through which the support smooth rods (205) are inserted, providing stabilization and support to the entire system. This design element further enhances the stability and reliability of the device during operation. By prioritizing patient safety, durability, and comfort, the back face plate (304) and its accompanying components ensure an optimal contour acquisition experience. The ability to customize the device based on individual limb sizes, combined with its reliable and long-lasting design, ensures precise measurements and accurate 3D contour acquisition. These features contribute to the overall effectiveness of the ALLIS Device (100) in medical settings, providing improved patient care and treatment planning.
The rotational unit (400) serves as a vital element in this invention, enabling the 360-degree rotation of the 3D contour acquisition unit (600). This mechanism incorporates precision-engineered larger gear (402), a ball bearing (401) to ensure smooth and accurate rotation, resulting in comprehensive data acquisition for the patient's leftover limb. For clamping of the 3D contour acquisition scanner (601) the clamping holes (404) are made.
The rotational unit (400) serves as a crucial component of the invention, encompassing the 3D contour acquisition unit (600). Its primary function is to facilitate the rotation to the 3D contour acquisition scanner (601) for comprehensive data acquisition. The rotation unit (400) comprises a bearing (401) on which a larger gear (402) is mounted. The rotation is initiated through handled shaft with end gear (403), which incorporates a handle for user control. Subsequently, the rotary motion is transmitted to end gear of shaft (403), which in turn transfers the rotation to the precision-engineered larger gear (402).
The rotation of the precision-engineered larger gear (402) is solely responsible for the rotation of the contour acquisition unit (600). To ensure smooth and precise rotation, the precision-engineered larger gear (402) is attached to a ball bearing (401). The ball bearing (401) plays a crucial role in achieving better accuracy in the acquired data. Within the ball bearing (401), there are small balls that revolve rapidly and smoothly. As a result, the device rotates seamlessly, allowing for accurate contour data acquisition. The precision-engineered larger gear (402), supported by a bearing (401), ensures smooth and seamless rotation.
The device employs a best mechanism to facilitate a smooth and uninterrupted rotation of the 3D contour acquisition unit (600), resulting in a comprehensive 360-degree view of the patient's leftover limb. This seamless rotation capability allows for precise and accurate data collection. By capturing a complete visual representation of the limb from every angle, the device ensures thorough and meticulous documentation of the patient's condition. This advanced functionality greatly enhances the ability to access and analyse the limb's characteristics, aiding healthcare professionals in making informed decisions and providing optimal care to the patient.
The present invention incorporates a sliding unit (500) that enables the transverse adjustment of the ALLIS device (100) to accommodate different sizes of leftover limbs. This unit comprises several components, including a slider (502) for back-and-forth motion, a threaded rod (501) for transverse motion, threaded holes (504) and unthreaded holes (503).
The sliding unit (500) plays a crucial role in facilitating the adjustment of the ALLIS device (100). One of its key components is the slider (502), responsible for the back-and-forth motion. The slider (502) moves linearly along the smooth rods (205), allowing the device to be adjusted accordingly to accommodate leftover limb sizes.
The threaded rod (501) is a long rod with threads on its surface. It is connected to the back face plate (304) and extends through it, with a handle at the end. The purpose of the threaded rod (501) is to provide transverse motion to the slider (502), facilitating the adjustment of the system based on the size of the residual limb. At the end of the threaded rod (501), a handle is employed to provide rotational motion. The handle acts as a means of transferring motion to the threaded rod (501). By rotating the handle, the threaded rod (501) moves in a transverse direction, leading to the desired adjustment of the system.
The sliding unit (500) also features threaded holes (504) and unthreaded holes (503) on its circumference. The threaded hole (504) allows the threaded rod (501) to pass through, enabling the transverse motion. The unthreaded holes (503) serve as passages for the smooth rods (205), which provide support to the sliding unit (500).
The threads on the surface of the threaded rod (501) are screw-like grooves that allow for a mechanical connection between the threader holes (504) and the threads on the threaded rod (501). When the handle is turned, it causes the threaded rod (501) to move in a transverse direction, facilitating the adjustment of the system. By incorporating the sliding unit (500) into the ALLIS device (100), the invention enables precise and customizable adjustments to accommodate various sizes of leftover limbs. This feature enhances the usability and effectiveness of the device, providing optimal comfort and accuracy during the contour acquisition process.
The 3D contour acquisition unit (600) is an essential component of the ALLIS Device (100) designed specifically for acquiring precise and accurate 3D contour data of leftover limbs in medical applications. The unit securely holds and supports the 3D contour acquisition scanner (601) during the contour acquisition process, addressing the challenge of limb instability.
The 3D contour acquisition unit (600) consists of a platform that provides support to the 3D contour acquisition scanner (601) and a pair of locks (602) positioned at both ends of the 3D contour acquisition scanner (601) to allow for adjustment and positioning as required. The adjusting scanner screws (603) are designed to move smoothly and precisely, facilitating easy adjustments to the position of the 3D contour acquisition scanner (601) during the contour acquisition process.
The primary objective of the 3D contour acquisition unit (600) is to ensure stability and security, preventing any movement or shifting of the 3D contour acquisition scanner (601) during the contour acquisition process. This is crucial in obtaining accurate and reliable 3D contour data. The unit incorporates a locking mechanism that firmly holds the 3D contour acquisition scanner (601) in place once it has been positioned, ensuring accurate and uninterrupted contour acquisition. The pair of locks (602) tightly secure the 3D contour acquisition scanner (601), further enhancing the stability and reliability of the data captured. This feature minimizes any potential errors caused by 3D contour acquisition scanner (601) movement, resulting in complete and precise 3D contour data.
The 3D contour acquisition unit (600) is designed with the utmost consideration for safety, durability, and patient comfort. It allows for precise adjustments, ensuring optimal positioning of the 3D contour acquisition scanner (601) for each individual patient's leftover limb. This customization enhances the quality of the acquired data and improves the patient experience during the contour acquisition process.
The 3D contour acquisition unit (600) is a critical element in acquiring precise and accurate 3D contour data for leftover limbs in medical applications. By securely holding the 3D contour acquisition scanner (601) and enabling precise adjustments, it ensures the highest quality data is obtained for various medical purposes, including prosthetic design and surgical planning.
The 3D contour acquisition unit (600) demonstrates adjustability, safety, durability, and comfort to prioritize patient safety, well-being, and cooperation during the contour acquisition process. Its reliable and customizable design facilitates the acquisition of precise and accurate 3D contour data, leading to improved patient outcomes and enhanced medical applications.
The Plast-Ex Fabrication Unit (700) comprises several key components that work together to facilitate the Plast-Ex Fabrication process. The structural backbone of the unit is the frame (701), which is constructed using durable materials such as aluminum extrusions to provide stability and rigidity during operation. The frame (701) serves as the foundation upon which the other components are mounted.
Three vertical columns (702) are strategically positioned in a triangular arrangement, acting as the primary support structure for the Plast-Ex Fabrication Unit (700). These columns (702) not only ensure stability but also guide the movement of the carriage (703). The carriage (703) is a platform that moves along the vertical columns (702) and carries the extruder (704) and the print bed (705). This movement allows for precise positioning within the printer's designated print area.
The extruder (704) plays a vital role in the Plast-Ex Fabrication process by feeding the filament into the print head (707) and melting it for deposition onto the print bed. It consists of a motor-driven gear system that propels the filament through a heated nozzle (708), creating the molten material necessary for layer-by-layer printing.
At the lower end of the vertical columns (702), the effector (706) is directly connected to the carriage (703). The effector acts as a mechanism for transmitting the movement from the carriage (703) to the extruder assembly (704), ensuring synchronized and accurate motion during the printing process.
The print bed (705) serves as the surface upon which the printed object is built layer by layer. It can be heated to improve adhesion and prevent warping of the printed material. The print bed (705) is adjustable to allow for leveling and alignment, ensuring optimal printing conditions.

The print head (707) is located within the print head assembly and moves in three dimensions (X, Y, and Z axes) under the control of the printer's firmware. The print head (707) deposits the molten filament onto the print bed (705) in a controlled manner, following instructions from the slicing software.
The Plast-Ex Fabrication Unit (700) utilizes multiple stepper motors for precise control of movement. These motors are connected to the vertical columns (702) and the effector (706), enabling synchronized motion of the carriage and print head (707).
The control board (709) serves as the central control unit of the Plast-Ex Fabrication Unit (700). It receives commands from the slicing software and translates them into instructions for the stepper motors. The control board also manages other components such as temperature control for the heated bed (705) and extruder (704), ensuring proper coordination and synchronization during the printing process.
The Poly-Ex fabrication Unit (700) utilizes three identical arms that extend vertically from the top of the vertical columns (702) down to the effector (706). These arms are typically made of lightweight and rigid materials such as carbon fiber or aluminum. They are positioned at equal angles around the effector (706), forming an equilateral triangle. First Arm (710) is typically positioned at the front of the printer, forming one side of the equilateral triangle. Second Arm (711) is usually located on the left-hand side of the printer, forming another side of the equilateral triangle. Third Arm (712) commonly positioned on the right-hand side of the printer, completing the equilateral triangle with the other two arms.
The Plast-Ex Fabrication Unit (700) is used to produce components used in the ALLIS device (100) which are front limb grippers (302) & back limb grippers (305) front limb grippers adjusting screws (303), clamps (404) used to mount the 3d contour acquisition unit (600), the adjusting scanner screws (603) made to insert the scanner into the clamps (404), locks (602) used to tightly hold the scanner (601).
, Claims:We Claim
1. The Amputee Leftover Limb Stabilization (ALLIS) device comprising of:
- a supporting unit (200) to make the entire ALLIS device system firmly supported and stationary during contour acquisition process along with keeping the rotating unit (400) and sliding unit (500) linearly intact;
- a leftover limb holding unit (300) for holding and stabilizing the leftover limb of the patient during contour acquisition for accurate and precise captured data;
- a rotational unit (400) for proper gripping and smooth rotation of the 3D contour acquisition scanner (601);
- a sliding unit (500) for serving the purpose of providing back and forth motion to 3D contour acquisition unit (600) for accommodating the contour acquisition of different sizes of leftover limbs;
- a 3D contour acquisition unit (600), for 360° contour acquisition of the leftover limb of patient;
- a plast-ex fabrication unit (700) utilized to fabricate parts of ALLIS device (100)

characterized in that,

the leftover limb of the patient is supported by a leftover limb holding unit (300) in which the 3D contour acquisition unit (600) smoothly rotates and moves using a rotational unit (400) with a sliding unit (500) facilitates precise back-and-forth motion of the 3D contour acquisition (600) to ensure accurate and detailed data capture.

2. The ALLIS device (100) as claimed in claim 1, wherein the supporting unit (200), consists of base (201), and smooth rod (202) to keep the system damped free.

3. The ALLIS device (100) as claimed in claim 1, wherein the leftover limb holding unit (300), consists of front face plate (301), front limb grippers (302), front limb gripper’s adjusting screw (303), back face plate (304), back limb grippers (305), and back limb gripper’s adjusting screw (306) for holding and stabilizing the leftover limb.

4. The ALLIS device (100) as claimed in claim 1, wherein the rotational unit (400), consists of bearing (401), precision-engineered larger gear (402), handled shaft with end gear (403), and clamping holes (404) for smooth rotation of the 3D contour acquisition scanner (601).

5. The ALLIS device (100) as claimed in claim 1, wherein the sliding unit (500), consists of threaded rod (501), slider (502), for serving the purpose of providing back and forth motion to 3D Contour acquisition unit (600) for accommodating the contour acquisition of different sizes of leftover limbs.

6. The ALLIS device (100) as claimed in claim 1, wherein the 3D contour acquisition unit (600), consists of the 3D contour acquisition scanner (601), pair of locks (602), and scanner adjusting screws (603).

7. The ALLIS device (100) as claimed in claim 1, wherein the plast-ex fabrication unit (700), consists of frame (701), vertical columns (702), carriage (703), extruder (704), print bed (705), effector (706), print head (707), nozzle (708), control board (709) utilized to fabricate parts of ALLIS device (100).