METHODS FOR INTEGRATING SENSORS AND EFFECTORS IN CUSTOM THREE-DIMENSIONAL ORTHOSIS
20170224520 · 2017-08-10
Assignee
Inventors
Cpc classification
A61F5/01
HUMAN NECESSITIES
A61B5/1121
HUMAN NECESSITIES
A61B5/11
HUMAN NECESSITIES
International classification
A61F5/01
HUMAN NECESSITIES
A61B5/11
HUMAN NECESSITIES
Abstract
A conformable body interface includes a body scaffold comprising a three-dimensional lattice which can be removably placed over a three-dimensional soft-tissue surface, such as a knee, elbow, spine, ankle, wrist, hip, or neck. One or more sensors are located at one or more locations on the body scaffold, and the one or more locations are selected to position the sensor near a target region on the body surface when the body scaffold is placed over the three-dimensional body surface. Typically, the sensors are positioned near a body joint to detect motion of the body joint.
Claims
1. A method for fabricating a conformable body interface which can sense motion of a body joint, said method comprising: fabricating a body scaffold which can be removably placed over a three-dimensional body surface to conform to one or more target regions of said body surface adjacent to the body joint; and attaching at least one sensor element to the body scaffold at a location selected to position the sensor near the target region on the body surface when the body scaffold is placed over the three-dimensional body surface, wherein the sensor is configured to detect motion of the body joint.
2. A method as in claim 1, wherein the sensors is configured to detect at least one of flexion, extension, rotation, pronation, and supination.
3. A method as in claim 2, wherein the sensor is selected from the group consisting of pressure sensors, strain sensors, force sensors, accelerometers, gyroscopes, velocity sensors, tilt sensors and pulse sensors.
4. A method as in claim 1, wherein fabricating the body scaffold comprises: obtaining a data set representing the three-dimensional, soft tissue body surface adjacent to a body joint; wherein the data set is obtained by directly or indirectly scanning the three-dimensional soft-tissue body surface of a patient to produce an initial data set representing the geometry of the one or more target regions on the soft tissue body surface; and modifying the initial data set to include locations for attaching the one or more sensors to the body scaffold to produce a modified data set.
5. A method as in claim 4, wherein fabricating comprises three dimensional printing based on the modified data set.
6. A method as in claim 4, wherein fabricating comprises numerically controlled machining of a substrate based on the modified data set.
7. A method as in claim 4, wherein attaching comprises inserting sensor elements into receptacles that are defined in the data set.
8. A method as in claim 4, wherein attached comprises securing the interface element to marked locations that are defined in the initial data set.
9. A method as in claim 1, wherein the sensor is positioned to detect incipient anatomic motion.
10. A method as in claim 9, wherein the sensor is placed to detect incipient flexion, extension, deviation, rotation, pronation, and supination.
11. A method as in claim 9, wherein the sensor is positioned to detect incipient anatomic motion in any one of a wrist joint, an elbow joint, an ankle joint, a toe, a spine, and a neck.
12. A method as in claim 4, wherein the initial data set defines a lattice structure which at least partially circumscribes the soft tissue surface.
13. A method as in claim 12, wherein the soft tissue surface comprises one of an upper limb, a lower limb, a wrist, an ankle, a spine, and a neck.
14. A method for generating a data set for fabricating a conformable body scaffold, said method comprising: directly or indirectly scanning a three-dimensional soft-tissue body surface of a patient to produce an initial data set representing the surface geometry of at least one target region on the soft tissue body surface adjacent to a body joint; and modifying the initial data set to include one or more locations for attaching one or more sensors configured to detect motion of the body joint to the conformable body scaffold to produce a final data set suitable for controlling a fabrication machine to produce the conformable body scaffold.
15. A method as in claim 14, wherein the initial data set defines a lattice structure which at least partially circumscribes the soft tissue surface.
16. A method as in claim 14, wherein the soft tissue surface comprises one of an upper limb, a lower limb, a wrist, an ankle, a spine, and a neck.
17. A conformable body interface comprising: a body scaffold comprising a three-dimensional lattice configured to be removably placed over a three-dimensional soft-tissue surface; and one or more sensors attached to one or more locations on the body scaffold, wherein the one or more locations selected to position the sensor near the target region on the body surface when the body scaffold is placed over the three-dimensional body surface, wherein the sensor is configured to detect motion of the body joint.
18. A conformable body interface as in claim 17, wherein the sensors are configured to detect at least one of flexion, extension, rotation, pronation, and supination.
19. A conformable body interface as in claim 17, wherein the sensor is selected from the group consisting of pressure sensors, strain sensors, force sensors, accelerometers, gyroscopes, velocity sensors, tilt sensors and pulse sensors.
20. A conformable body interface as in claim 17, wherein the body scaffold comprises an orthotic aid.
21. A conformable body interface as in claim 17, wherein the interface element further comprises a therapeutic element selected from the group consisting of an ultrasound transducer, a heat source, a cooling source, an electrical source for muscle stimulation, an electrical source for electroconvulsive therapy, or a magnetic source.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0024] The novel features of the invention are set forth with particularity in the appended claims. A better understanding of the features and advantages of the present invention will be obtained by reference to the following detailed description that sets forth illustrative embodiments, in which the principles of the invention are utilized, and the accompanying drawings of which:
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DETAILED DESCRIPTION OF THE INVENTION
[0090] The present invention relies on known techniques for manufacturing personal three-dimensional printed orthotics which generally utilize three steps. The first step is reference geometric data gathering; the goal of this step is capturing the anatomic geometry of the patient. Relevant three-dimensional scanning or medical imaging technologies are used in order to capture the personal three-dimensional geometry. This three-dimensional geometry later provides the basis for the interior geometry of the custom three-dimensional printed orthotic. The second step is personal splint design; the goal of this step is determining and modeling the physical structure of the custom three-dimensional printed orthotic. During this step, design features of the orthotic, such as hinges, large window openings (any three-dimensional modification applicable to the orthotic structure within traditional methods applied in plaster and thermoplastics) can be marked on a patient's skin with ink markers for a CAD designer to follow as instructions. In particular, the locations for the sensor target regions can be marked so that they are carried over into the scanned three-dimensional data set. The third step is three-dimensional printing of the personal orthotic. Any known three-dimensional printing technology can be used for the task.
[0091] With further reference to geometric data gathering, this stage presents the foundation of the entire process as it is the geometric reference of the three-dimensional printed personal diagnostic device. The goal of this stage is to capture patient's desired (relevant) anatomic region with the use of three-dimensional scanning technologies. Depending on the anatomic location and the three-dimensional scanning technology available, this process can take between a few seconds to a few minutes. The relevant anatomic region of the patient is usually stabilized during scanning, and depending on patient's medical condition or physical limitations, patients may need different levels of orthotic intervention, support, and assistance during this step. Although stabilization and the three-dimensional scanning process can be exactly the same among different anatomic regions, the following example is specifically designed for upper extremity cases such as a forearm FA (
[0092] Commercially available computer aided design (CAD) software, such as Autodesk Fusion 360, Rhinoceros 5, and Solid Works, can be used to import the patient's three-dimensional body surface geometry and to design a body scaffold suitable for incorporation into the conformable body interfaces of the present invention. Usually, a medical professional skilled in designing orthotics or other body splints and a CAD designer will work together in designing an orthosis for an individual patient. The medical professional positions the patient's anatomy and marks interventional and locational information on the patient's skin with ink markers. The CAD designer follows these instructions during the CAD design stage. The medical professional can mark important orthotic design considerations with a combination of different colored markers and line types (straight lines, dashed lines, dotted lines, specific symbols, shapes etc.). Such orthotic design considerations (inputs) provide the limitations of the orthotic, hinges, joining mechanisms, window openings, areas for damping, areas to avoid, areas for sensor placement and areas for therapeutic beneficiary placement. Alternatively, the CAD software can also be modified to trace the marked input as commands with determined anatomic locations and generate the design. Further alternatively, the body scaffold can be designed using software with an augmented or virtual reality interface.
[0093] Physical examinations are used for diagnosis and classification of numerous neuromuscular and musculoskeletal systems. An orthopedic examination process can include the following stages: (1) Inspection (surface anatomy, alignment, gait and range of motion) and (2) Palpation/Manipulation (muscle testing, pain sensation testing, reflex testing and stability testing). Diagnostic systems useful in the present invention will usually provide a range of orthopedic examination techniques and digitize these processes in the areas of flexibility/stiffness, muscle strength, range of motion and other relevant examination processes involving palpation/manipulation. These diagnostic systems rely on analyzing biomechanics, orthopedic biomechanics, anatomy and sensory technologies in order to determine the correct types and anatomic locations for sensing motion and other physical and biological data and/or therapeutically intervening. The sensory equipment used include anatomic (pressure, tension, position, etc.) and physiologic sensors (pulse, temperature, oximeter, and the like. The sensed data can be collected and used for both local and remote data analysis. In particular, the data for individual patients and for populations of patients may be collected at central location(s) (e.g. in the “cloud”) and used for individual and population analytics.
[0094] The language used to refer to anatomic structures and biomechanical phenomenon as used herein will now be defined. Terms related to anatomic locations are often used to indicate the position of one structure relative to another. Proximal means anatomically nearer to a point of reference such as an origin, a point of attachment, or the midline of the body opposite of distal. Distal means anatomically located far from a point of reference, such as an origin or a point of attachment opposite of proximal. Anterior means anatomically situated at or directed toward the front, in human anatomy, denoting the front surface of the body, that is, situated nearer the front part of the body, opposite of posterior. Posterior means directed toward or situated at the back, denoting the back surface of the body, opposite of anterior. Medial means anatomically situated toward the midline of the body or a structure, i.e. the opposite of lateral. Lateral means a position farther from the median plane or midline of the body or a structure, pertaining to a side, i.e. the opposite of medial. Joint motion is assessed within three planes of movement: the sagittal plane, the frontal plane, and the transverse plane. The sagittal plane passes through the body front to back, thus dividing a body region into left and right. Movements in this plane are the up and down movements referred to as flexion and extension. The frontal plane divides the body into front and back or anterior and posterior. Movements in this plane are sideways movements, referred to as abduction and adduction. The transverse plane divides the body into top and bottom or superior and inferior. Movements in this plane are rotational in nature, such as internal and external rotation, pronation, and supination. Flexion and extension describe movements that affect the angle between two parts of the body. Flexion describes a bending movement that decreases the angle between a segment and its proximal segment. Extension is the opposite of flexion, describing a straightening movement that increases the angle between body parts. Abduction refers to a motion that pulls a structure or part away from the midline of the body. In the case of fingers and toes, it refers to spreading the digits apart, away from the centerline of the hand or foot. Abduction of the wrist is also called radial deviation. Adduction refers to a motion that pulls a structure or part toward the midline of the body, or towards the midline of a limb. In the case of fingers and toes, it refers to bringing the digits together, towards the centerline of the hand or foot. Several joints are capable of movements that resist being forced into this system of classification. This has given rise to other descriptive terms particular to specific parts of the anatomy, such as opposition, inversion/eversion, and pronation/supination.
[0095] All orthotic designs are based on three relatively simple principles: pressure, equilibrium and the lever arm principle. The “equilibrium principle” is that the sum of the forces and the bending moments created must be equal to zero. The “lever arm principle” is that the further a point of force is from the joint, the greater the moment arm and the smaller the magnitude of force required to produce a given torque at that joint. The present invention relies heavily on these principles to digitize the biomechanics of orthopedic evaluation and rehabilitation processes. Static orthosis have no moveable joints incorporated in to the design. However, a static orthosis may allow active joint motion in one direction, but block motion in another direction (static with a block). A static orthosis may also be changed or adjusted to alter motion allowed or alter the pressure across a joint for stretching purposes (progressive static). Dynamic orthoses have movable joints that can limit motion (block), increase motion through traction, or substitute for weak muscles using supplemental force (assist).
[0096] Static custom three-dimensional printed orthotic structures or “splints,” referred to as static body scaffolds,” according to the present invention will provide an external force to counter act imbalances of internal forces resulting from joint motion or instability. The sensors and diagnostic systems of the present invention are incorporated into the scaffolds to measure and “digitize” the biomechanical forces caused by incipient anatomic motion (flexion, extension, deviation, rotation, pronation, supination and other accumulation of pressure, tension and torque) within the areas under orthotic intervention. The detection of such internal forces can be indicative or diagnostic of a variety of conditions such as spasticity, brain damage, nerve damage, cerebral palsy, strokes, arthritis, carpal tunnel syndrome, scoliosis, lordosis and kyphosis. Specific conditions may be of congenital or non-congenital origins and may be triggered by neuromuscular and/or musculoskeletal reactions, such as stiffness and contractures.
[0097] Incipient anatomic motion is particularly useful for monitoring spasticity in muscles. It is known to evaluate spasticity by applying force to joints and judge the counter force caused by spasms. By applying a constant pressure to the joint using a body scaffold in accordance with the present invention, the anatomy is trained to neutralize the same imbalances. Alternatively occurrence of such internal forces may cause by voluntary muscle tension/compression. Digitization of voluntary attempts of anatomic motion is a convenient method for monitoring the progress of the changes in muscle strength, for example from degenerative illnesses such as multiple sclerosis (MS), and the like. A dynamic relationship between the orthotic or other body scaffold and the patient anatomy provides sensory locations to create a diagnostic tool for patients with related disorders and digitize current subjective methods of evaluation. A pressure profile will occur within the scaffold on an anatomic plane of the intended motion. The present invention relies on the equilibrium principle to determine the anatomic location of each pressure point. The scaffolds will usually provide a three point pressure equilibrium where the highest pressure point occurs is located on a side of the joint opposite to the direction of the intended motion. The other two pressure points occur in the orthotic distal and proximal to the patient's anatomy, located on the direction of the intended motion. Although orthotics with four or more pressure points exist, the lever arm and the pressure principles are universal for all orthotics. The diagnostic systems of the present invention utilize sensory locations within the scaffolds in tandem with equilibrium principle within static orthotic structures in relation to internal imbalances.
[0098] “Anchor” points useful in the present invention for locating pressure and tension sensors for upper extremity body scaffolds and splints, e.g. for the wrist and elbow, are described in
[0099] “Anchor” points useful in the present invention for locating motion sensors (e.g. pressure and tension sensors) in lower extremity body scaffolds and splints are described in
[0100] Although toes can move in multiple anatomic planes the diagnostic system of the present invention is particularly useful for monitoring incipient motion in patients having “hammer toe” or “claw toe” which are deformities which appear in sagittal plane Hammer toe (or claw toe) result from continuous flexion of the proximal interphalangeal joints in the sagittal plane. Incipient motion of the toe in the sagittal plane is illustrated in
[0101] Conventional spinal orthotics may be classified according to the anatomical areas to which they are applied. Referring to
[0102] Incipient motion of the spine in the frontal plane is illustrated in
[0103] Properly placed sensors can also be used to assess pressure accumulation due to swelling or other conditions. The internal body pressure which causes or results from swelling differs from that resulting from incipient joint motion and can be measure with differently located pressure, strain, force, and other sensors located on a body scaffold. Swelling, including turgescence and tumefaction, is a transient abnormal enlargement of a body part or area not caused by proliferation of cells. It is usually caused by an accumulation of fluid in tissues. It can occur throughout the body (generalized), or can be localized in a specific body part or organ.). A body part may swell in response to injury, infection, or disease. Swelling, especially of the ankle, can occur if the body is not circulating fluid well.
[0104] In fractures swelling is an autoimmune response, and casts are traditionally fabricated with additional space or volume to accommodate edema. If a cast is too tight, or if the excessive swelling occurs, the patient may suffer compartment syndrome which can in the worst cases result in amputation. The diagnostic systems of the present invention monitor inflammation and swelling by positioning pressure sensors in three-dimensional fabricated body scaffolds. Swelling (edema accumulation) is most intense in the areas where muscle density is highest within muscle compartments. Swelling occurs unevenly within splinted areas. The diagnostic systems of the present invention provide specific sensory locations within static orthotic devices to monitor post trauma swelling (circumferential expansion).
[0105] Particular locations for locating anatomic anchor points to position biomechanical sensors on patient's anatomy to monitor swelling in a patient's arm are shown in
[0106] Referring to
[0107] Patients with diabetes can develop many different foot problems. Conditions which are at first manageable can worsen and lead to serious complications. Foot problems are exacerbated when there is nerve damage referred to as neuropathy. Patients with diabetes can also suffer from special skin conditions because diabetes affects the capillaries, including thickening of skin resulting in calluses which limit the supply of skin nutrients skin. Callus formation occurs in high numbers of patients with diabetes, absent foot pulses, formation of hammer toe interphalangeal, and foot ulcers. A hammer toe occurs from a muscle and ligament imbalance around the toe joint which causes the middle joint of the toe to bend and become stuck in flexion. Callus and ulcers usually occur on the bottom of the foot monitoring pressure profile in these area provides diagnostic data for these cases.
[0108] Pressures resulting from changes in compressive force can be measured using c pressure sensors, including piezoresistive, piezoelectric, capacitive, and the like. The pressure sensors are placed in predetermined locations within in body scaffold. Usually. the pressure sensors will have padding structures to present a long term comfortable interface to patient anatomy, Pressure sensors to monitor pressure, data transmission device(s) for collecting, processing and transferring the data, batteries to power the device and wiring for internal data transfer will often also be incorporated into the body scaffolds of the present invention.
[0109] In addition to commercially available sensors, the systems of the present invention will often utilize custom pressure sensors designed to provide a more conformable or more effective body interface. Such custom sensors can also facilitate data transmission, provide more accurate data mining capabilities, be shaped to conform to specialized body scaffold geometries, and the like. Exemplary fabrication methods may utilize three-dimensional printed molds and microelectromechanical (MEMS) fabrication techniques to provide barometer chips with temperature sensors, instrumentation amplifiers, analog to digital converters, standard bus interface (an example sensor is a Miniature I2C Digital Barometer MPL115A2), and other specialized capabilities. Fabrication may also include pouring of viscoelastic materials (rubber, silicone) in vacuum environment in order to manufacture personalized biomechanical sensors for the task.
[0110] An example of flexion monitoring in the wrist area is illustrated in
[0111] Manufacturing of a body splint for monitoring radial deviation of a wrist is described with reference to
[0112] Tension measurement may be used as an alternative or in addition to pressure (compression) measurement. Tension and compression are opposites of each other and one can be converted to the other with ease. Any type of sensory technology monitoring tension can be used as a sensor in the present invention, e.g. strain gauges, tension monitoring fabrics, and the like. A strain gauge sensor typically utilizes changes in electrical conductance to monitor changes caused by tension on a flexible material surface. Although the target locations for pressure and tension measurement will generally be the same, the topology of the personal three-dimensional scaffold may be modified for particular purposes. An example is illustrated in
[0113] The body scaffolds of the present invention may also comprise adaptive or dynamic orthoses as an alternative to the static orthosis solutions that have been described to this point. Referring to
[0114] An upper extremity adaptive splint (361) includes sensory technology incorporating a circumferential expansion monitoring structure (362). The structure includes a rubber O-ring 3621 and a strain gauge 3622 can measure changes in electro-conductivity of the rubber O-ring due to stretching (strain gauge). Modular or embedded probes (effectors) and equipment strategically positioned to stimulate or deliver other therapies to the anatomic systems may also be provided (363, 364). Referring to
[0115] The body scaffolds of the present invention may be used with external structures to deliver force to the body surface to in turn cause motion, tension, compression, and torque in the splinted anatomic structures. Diagnostic system generate and collect data representative of the biomechanical process of range of motion; flexion, extension, deviation, rotation, pronation, supination and other single or multi-axis motion in correlation with the external force applied through the orthotic structure. Restrained or incipient motion means that the external force applied by the scaffold is greater then the resistive internal force(s) until equilibrium is reached.
[0116] Referring to
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[0119] Referring to
[0120] Referring to
[0121] As shown in
[0122] Referring to
[0123] Referring to
[0124] Referring to
[0125] The diagnostic and therapeutic systems of the present invention will frequently use embedded sensors and therapeutic elements as described and illustrated above. Additionally and alternatively, certain embodiments of the present may use and incorporate the diagnostic probe (553) previously described with reference to
[0126] Alternatively gyroscopes and accelerometers (558) can be positioned on the orthotic for monitoring the changes in space but the anatomic location and the direction of the force applied must be preserved and assured embedding gyroscopes (558) and accelerometers (558) will require additional relevant device (559) and batteries (5510).
[0127] The entire personal splint can be manufactured with three-dimensional printing with flexible (skin-like) viscoelastic material or casted in a three-dimensional printed mold.
[0128] In additional embodiments, the static orthotic structures and other body scaffolds of the present invention can be manufactured to provide adjustable pressure to the anatomic structures underneath. The required pressure can be generated by basic mechanical structures embedded in the device or by modifying the damping geometries with in static orthosis. Such systems allow further data collection and analysis by digitizing the adjustable force for biomechanical and orthopedic analysis. The analysis of the forces involved in progressive orthosis can provide further understanding in spasticity and fracture related cases.
[0129] Another use of an adjustable pressure monitoring system in treating and monitoring bone fractures. Typically, fractures require some level of external pressure in order to support support to the injured area. This pressure helps stabilizing the area and also help the fracture to heal. Bones are piezoelectric structures in nature, and the transfer of ions is an important contributor to fracture healing. Conventionally, the external pressure is applied by a medical professional during casting of the splint and particularly during cast's solidification process. This pressure can be applied to the fractured anatomic location by the medical professional in the same manner Due to the nature of conventional applications there is no way of measuring pressure or precisely defining the area for applying the pressure to the relevant area.
[0130] The splints and body scaffolds of the present invention can external pressure units (embedded or modular) for applying adjustable pressure to the patient anatomy to enable progressive orthotic rehabilitation. As shown in
[0131] As shown in
[0132] The sensory unit (582) is shown in greater detail in
[0133] The systems of the present invention may support therapeutically beneficial technologies to support and promote recovery in numerous neuromuscular and musculoskeletal conditions. Although the benefits of these technologies are known, they are difficult or impossible to administer during orthotic intervention due to physical restrictions and production methods used for manufacturing such orthotic equipment. Traditional manufacturing technologies used are unable to incorporate precision manufacturing solutions required for practical application of such technologies and methods. Current solutions also include physically tooling the orthotic in order to have access to the relevant areas (opening a window in the structure). This method is undesired by patients as the tooling process involves risk of damaging the tissue beneath and far from practical. In particular, the present invention can be used to deliver proven and other interventions that would normally be precluded by the presence of a splint. Both static and dynamic orthotic devices are convenient hubs for locating sensors and therapeutic elements delivering therapies. The therapeutic system focuses on a range of medical techniques and technologies in the areas of therapeutic and pharmaceutical assistance and enable their usage during orthotic intervention periods. The therapeutic system provides engineering solutions and related anatomic locations for; LIPUS (low pulsed ultrasound therapy), TENS (transcutaneous electrical nerve stimulation), EMS (electrical muscle stimulation), thermotherapy (heat therapy) and cryotherapy (cold therapy), LLLT (low level laser therapy), Electromagnetic therapy, massage/vibration therapy, and techniques of delivering pharmaceuticals to personal three-dimensional printed orthotics (static or dynamic) The therapeutic system relays heavily on deep understanding of therapeutic and pharmaceutical assistance technologies and methods of administration. In every case, therapeutic stimulation or delivery of medical beneficiaries will require modular or embedded probes (effectors) and equipment strategically positioned to deliver their influence to the anatomic systems (363, 364). Any temporary stabilization mechanism can be utilized for the task, mechanic (slots, screws, hinges, etc.), magnetic or chemical base.
[0134] There are many therapeutic and beneficiary technologies stimulating and improving patient anatomy with a wide range of energy transfer (acoustic, vibration, photon, electrical, electromagnetic, heat etc.) and use of pharmaceuticals. From engineering point the process will require physical modifications on personal three-dimensional printed orthotics and involved objects to provide relevant structures for integration and applications. The integration challenges can be grouped in accordance with types of administration and practicality. Therapeutic technology integration. This section covers medical therapy and beneficiary with energy transfer with modular probes and effectors. The system is built with a few basic components, a power source (mostly electrical), wiring to transfer the power coming from the power source, probes for converting (or manipulating) the power of origin to therapeutic energy Finally the probes are stabilized (modular or embedded) to the personal three-dimensional printed orthotics with various connectors (mechanical, electromagnetic, or chemical) to deliver therapy. A few examples of the delivery challenges; LIPUS (low pulsed ultrasound stimulation); Ultrasound is widely used for imaging purposes and as an adjunct to other therapies. Low-intensity pulsed ultrasound (LIPUS), having removed the thermal component found at higher intensities, is used to improve bone healing. However, its potential role in soft-tissue healing is still under investigation. The acoustic energy generated from ultrasound is produced from a piezoelectric crystal within a transducer (probe), which emits high-frequency acoustic pressure waves on the skin in direct location of the fractured area. EMS (Electrical muscle stimulation); is the elicitation of muscle contraction using electric impulses. EMS is used as a strength training tool for healthy subjects and athletes, a rehabilitation and preventive tool for partially or totally immobilized patients, a testing tool for evaluating the neural and/or muscular function in vivo, and a post-exercise recovery tool for athletes. The impulses are generated by a device and delivered through electrodes (probes) on the skin in direct proximity to the muscles on muscle masses of related muscles. Muscle masses of the extensor and fixator muscles are marked as 231, 251, 271, and 291 in
[0135] In a typical application relevant probes are positioned on nerve endings, acupuncture points and joints depending on the dose, wavelength, timing, pulsing and duration. Thermotherapy; is the use of heat in therapy, such as for pain relief and health. It can take the form of a hot cloth, hot water, ultrasound, heating pad, hydrocollator packs, whirlpool baths, cordless FIR heat therapy wraps, and others. It can be beneficial to those with arthritis and stiff muscles and injuries to the deep tissue of the skin. Heat may be an effective self-care treatment for conditions like rheumatoid arthritis. Specific cryotherapy is the local or general use of low temperatures in medical therapy. Cryotherapy is used to treat a variety of benign and malignant tissue damage. Its goal is to decrease cell growth and reproduction (cellular metabolism), increase cellular survival, decrease inflammation, decrease pain and spasm, promote the constriction of blood vessels (vasoconstriction), and when using extreme temperatures, to destroy cells by crystallizing the cytosol, which is the liquid found inside cells, also known as intracellular fluid (ICF). Typically heat is generated by converting electrify in to thermal energy through electrically resistance components, such resistance components include metal heating elements, ceramic heating elements and composite heating elements. Cold is traditionally more difficult to generated by fans and complex machinery (moving hear from one location to another in controlled volumes (fridges)). In a more practical manner heat and cold can be generated with thermoelectric effects and materials. In a typical case a thermoelectric probe is placed on patient anatomy to deliver its influence. In a typical application relevant probes are positioned on injured areas, nerve endings, acupuncture points and joints depending on the case. The therapeutic system uses personal three-dimensional printed orthotic structures as a hub for therapeutic technologies concerning energy transfer.
[0136] The therapeutic system uses the personal three-dimensional printed orthotic structure as a hub for therapeutic technology, for this section all the therapeutics involved are delivering their influence with dedicated probes to deliver energy to patients anatomy. Placement of probes are specific to each developing therapeutic challenge and are case sensitive. Anatomic motions discussed above can be directed to specific muscle groups according for EMS. In a typical case (
[0137] A second example is illustrated in
[0138] Both thermotherapy and cryotherapy require relatively larger areas in order to efficiently transfer energy this application is an alternative system for delivering heat or cold to a patient anatomy. Rather than placing effectors on patient anatomy this method involves circulating heated or cooled liquids trough personal three dimensional printed orthotics in order to affect larger areas. This liquid radiating method is applicable to any personal three-dimensional printed orthosis. With this method any desired/relevant area of a splint can be modified to function as an effector and deliver thermotherapy are cryotherapy to patient anatomy. From design point, additional subtractions and modifications are needed in the splint geometry to allow liquid to pass. More complex radiator geometries (paths) can also be designed with this method.
[0139] Referring to
[0140] There are two possible routes for administrating pharmaceuticals trough orthotic structures to patient anatomy, dermal route or injection route. Dermal route of pharmaceutical administration is a technique of drug delivery where topical medication is the chosen method. Many topical medications are epicutaneous, meaning that they are applied directly to the skin to treat ailments via a large range of classes including but not limited to lotions, creams, ointments, liniments, liposomes, powders, pastes, films, gels, hydrogels, DMSOs (Dimethyl sulfoxide), artificial vesicles, jet injectors, dermal patches, transdermal patches, transdermal sprays, iontophoresis, non-cavitational ultrasound, cavitational ultrasound, electroporation, microneedles, thermal ablation and microdermabrasion. Injection or infusion route of pharmaceutical administration is a technique of drug delivery. Injection or infusion is simply putting fluid into the body, usually with a syringe and a hollow needle which is pierced through the skin to a sufficient depth for the material to be administered into the body. There are several methods of Injection or infusion including but not limited to, intradermal, subcutaneous (SC), intramuscular (IM), intravenous (IV), intraosseous (IO), intraperitoneal (IP), intrathecal, epidural, intracardiac, intraarticular, intracavernous, and intravitreal. The therapeutic system uses personal three-dimensional printed orthotic structures as a hub for placing pharmaceutical administration equipment and systems.
[0141] Dermal route of pharmaceutical administration require direct skin contact of relevant epicutaneous materials. Typically absorption of these materials by the skin is a process requiring time also frequent exposure to epicutaneous materials in a stable deserted environment.
[0142] Injection and infusion of pharmaceutical substances is the final solution of the disclosure. In cases with infusion and injection the pharmaceutical fluid have to be injected via, either a pre-positioned root or a dynamic system with relevant mechanisms (spring, pressure, magnetic based) to open the necessary root of administration, to relevant anatomic structures (intravenous, intradermal, subcutaneous, and intramuscular). Mechanical adjustments in the dynamic injection system can determine the penetration level and the angle of the root of administration.