61 results about "Amputated extremity" patented technology

Systems, devices, and methods of the present application can accelerate and reduce medical complications associated with healing of non-planar wounds such as amputation wounds. The devices and methods utilize a collapsing structure and negative pressure to cause the shaped wound to preferentially close. The structure can accommodate movement over curved tissue surfaces, which can utilize scales or interleaved elements to provide efficient wound closure along arcuate paths. This structure can enable gradual closure from the deepest portion of the wound to the shallowest portion.

Systems, devices, and methods of the present application can accelerate and reduce medical complications associated with healing of amputation wounds. The devices and methods utilize a compression structure and negative pressure to cause the amputation wound to preferentially close from the deepest portion of the wound to the shallowest portion.

This invention relates generally to an index map comprising both pressure and perfusion information from a diabetic patient foot for the purpose of treatment. The index map may also be a map of perfusion and / or metabolism of the tissue (reflecting oxygen delivery and oxygen extraction), obtained by thermal imaging, hyperspectral imaging, or duplex ultrasound, MRA, CT or laser Doppler imaging. This information aids treatment in prevention of diabetic foot ulceration and amputation and in treatment of tissue compromise to prevent tissue loss in other body regions.

A therapeutic apparel article is configured with a supple wearable fabric article that can be configured over limb or nub of an amputated limb. The therapeutic apparel article is configured with a plurality of nodes for detachably attaching vibrating devices thereto. In addition, a control unit having a power source may be detachably attached to the wearable fabric article. A conductive network may extend from the control unit and / or the power source to provide electrical power to the nodes and the vibrating devices attached. A user may attach vibrating devices to various nodes of the wearable fabric article as desired. In addition, the vibrating devices and the control unit can be detached from the wearable fabric article to enable the wearable fabric article to be washed.

Systems, devices, and methods of the present application can accelerate and reduce medical complications associated with healing of non-planar wounds such as amputation wounds. The devices and methods utilize a collapsing structure and negative pressure to cause the shaped wound to preferentially close. The structure can accommodate movement over curved tissue surfaces, which can utilize scales or interleaved elements to provide efficient wound closure along arcuate paths. This structure can enable gradual closure from the deepest portion of the wound to the shallowest portion.

A machine for forming a negative cast of an end portion of an amputated limb has an outer rigid tubular body; an elastically deformable tubular membrane housed within the rigid tubular body and having its opposite annular end portions fluid-tightly connected to the rigid tubular body, to define a through-duct through which the limb passes and, with the rigid tubular body, a fluid-tight elongated annular chamber with variable volume surrounding the limb; a reference membrane for positioning of the limb within the duct being provided at the outlet of the duct.

Herein described is an osseointegrated interface device for engagement with an amputated limb including the skin comprising: a cap portion engageable with an osseointegrated device; wherein the cap portion comprises a surrounding flange; and wherein in use the surrounding flange receives the skin of the amputated limb at a distance spaced from the osseointegrated device.

The invention relates to a built-in artificial limb connecting device. The built-in artificial limb connecting device comprises a bone stump fixing sleeve which is of a tubular structure with two open ends, wherein a first joint part is formed at a first end of the bone stump fixing sleeve, a bone stump fixing cavity is formed in a second end of the bone stump fixing sleeve, and the bone stump fixing cavity is configured to be arranged outside a stump bone in a sleeving mode and connected with the stump bone in a fastened mode; and a bone stump fixing handle, wherein the bone stump fixing handle comprises a broach, a second joint part and an external connection part which are integrally connected, the broach of the bone stump fixing handle penetrates through the first end of the bone stump fixing sleeve and then is fixedly connected with the first joint part of the bone stump fixing sleeve through the second joint part, the broach of the bone stump fixing handle is used for being inserted into a marrow cavity of stump bone and is fixedly connected with the marrow cavity of the stump bone, and the external connecting part of the bone stump fixing handle is used for being connected with an external artificial limb. The built-in artificial limb connecting device can be widely applied to patients subjected to amputation for different reasons, integration of a connector and the stump bone is achieved, and the amputated patients can conveniently replace different more-comfortable external artificial limbs according to own requirements.

The invention discloses an implantable prosthetic device capable of lengthening an amputation stump at the middle-upper section of a femur. The implantable prosthetic device comprises a first intraosseous implantation part and a second intraosseous implantation part, the second intraosseous implantation part is telescopic, the second intraosseous implantation part comprises a traction section anda driving section, in a use state, the first intraosseous implantation part penetrates through the vertex of a femoral trochanter to extend to the femoral section, a screw is arranged on the lower portion of the second intraosseous implantation part, the second intraosseous implantation part penetrates through the femur, the traction section is fixed to the femur, the driving section is in slidingconnection with the traction section, The upper end of the driving section abuts against the first intraosseous implantation part, and the lower end of the driving section extends out of the stump. By means of the device, for limb shortening caused by various reasons clinically, bone lengthening can be conducted through a bone carrying technology provided by an orthopedist llizarov, and the problem of limb shortening is solved through a tissue tension stress rule; the problem of continuous amputation in a later period can be completely eradicated, and pain and economic burdens of a user are greatly relieved; and a connecting structure enables a prosthesis to be firmly connected with the stump femur.

Valve for a prosthesis socket, the socket delineating an open cavity to receive a stump of an amputated limb and delineating a pass-through hole opening into the cavity and designed to receive the valve, the valve including a support in which a pass-through channel is formed and an element movable between an outlet position in which the element allow an air flow out of the channel in an outlet direction and a sealing position in which the element prevent any air flow inside the channel in an opposite direction to the outlet direction, the support including a thread configured to mount the support in removable manner inside the pass-through hole, and to enable disassembly of the support in an opposite direction to the outlet direction.

An artificial lower limb motion intention recognition algorithm based on BPSOGWO-KNN belongs to the technical field of mode recognition, and comprises the following steps: firstly, extracting multi-sensor data in a 200ms time window when a weighing sensor value is just greater than 16N in each gait cycle, denoising and removing abnormal data, and adding a classification label to normal data; extracting seven time domain feature values of data of each dimension in the time window, and performing feature selection by using a BPSOGWO-KNN algorithm; performing optimization training on a nearest neighbor value K in the KNN classifier and a feature weight in an optimal feature subset selected by a BPSOGWO-KNN algorithm by using a BBO algorithm; inputting the nearest neighbor value K and the feature weight value obtained through optimization into an improved KNN classifier; according to the method, redundant feature values are removed, different weights are given according to different contributions of the feature values, the distance mean values of K neighbor values closest to the target under each classification category are compared, pattern recognition is carried out, the algorithm accuracy is greatly improved, and the use safety of a lower limb amputation patient is guaranteed.

The invention relates to an external plaster for treating bone injuries. The raw materials of the external plaster involve the following Chinese medicinal materials by weight: 100-200g of poplar buds, 150-250g of elm barks, 50-150g of calcined oxhorns, 50-100g of cartialgenous, 100g of Achyranthes, 100g of monkshood, 100g of Radix Aconiti kusnezoffii, 150g of radix clematidis, 100-150g of pseudo-ginseng, 100g of the roots of fangji and 150g of rhizoma corydalis. The preparation method of the external plaster comprises the steps of: crushing the medicinal materials into fine powder, sieving the powder with an 80-mesh sieve and mixing the powder uniformly, then putting the powder into a pot, adding 2000ml of boiled water at 80DEG C, stirring them evenly and soaking them for 30min, decocting the mixture with slow fire and adding 500ml of edible vinegar simultaneously, and carrying out decoction for 60min till obtaining a black jelly pasty ointment for stand-by use. Compared with the prior art, the plaster provided by the invention is good for patients with bone injuries, the treatment period is shortened and the cure rate is high, so that the plaster can substitute the therapies of western medicine surgeries and operations employing steel nails and iron hooks. Besides, the plaster does not cause sequela, or require amputation, and can prevent infection. According to years of clinical practice, and diagnosis and observation of tens of thousands of patients, the plaster has a total effective rate of 97.76% and a cure rate of 93% on bone fractures, and a total effective rate of 93% and a cure rate of 81% for treatment of lumbar disc herniation.

The disclosed systems and methods provide for a mirror box therapy system as a therapeutic tool for treating patients having one healthy and one unhealthy limb. This can include stroke patients or those whom otherwise have full or partial paralysis. Also suitable patients include amputees with phantom limb pain or those with intact legs whom have unilateral chronic lower extremity pain. The system is designed to be used with patients in the short sit position or long sit position and can be alternated between each position including switching between left side and right side limb treatment. The methods of treatment with the disclosed system are designed to provide for positive visual feedback and induce brain plasticity with the improvement of neural connections leading to pain and / or motor rehabilitation of the impaired limb.

A method of amputating and morcellating a uterus (10) includes introducing a first tissue bag (1) into the abdomen of the patient, and placing the first tissue bag over the uterus. A laparoscopic surgical instrument (11) is introduced into the first tissue bag, and the uterus (10) is amputated using the laparoscopic surgical instrument. The first tissue bag (1) is closed around the amputated uterus, and the first tissue bag containing the amputated uterus is placed into a second tissue bag (20). A morcellating instrument is introduced into the second tissue bag (20) and the uterus is morcellated within the second tissue bag. Once the uterus (10) has been morcellated, the second tissue bag (20) containing the morcellated uterus is removed from the abdomen of the patient.

A prosthetic suspension-mounting system which employs an improved flathead bolt and socket centering cup combination for securement of an amputee-limb enveloping liner within a prosthesis. The liner has a strap fixedly attached on the bottom end of the liner by a flathead bolt. The mounting system also includes a containment socket for seating the liner in the prosthesis using the head of the flathead bolt as a bearing surface against a floor of the socket. The containment socket has a slot there through at a position corresponding to the strap of the liner. The socket is provided with a disk-shaped recess having a flat floor, and the liner is provided with a distal flathead bolt having a flat head to provide a direct bearing surface against the floor of the socket. This provides a delimited bearing surface to keep the liner substantially centered within the prosthesis while still affording a lateral degree of freedom to avoid concentration of lateral forces.

A prosthetic liner having a lower longitudinal stretch in the distal region than in either the proximal or optional intermediate region. The distal region may stretch anywhere from 0-30% vertically and 10-200% horizontally as compared to the proximal region's vertical stretch of 55-125% and 100-175% horizontally. The stretch of the liner at various pressure sensitive regions of a residual limb can also be lowered or heightened depending on the area. A variety of stitches may be used at the distal end to implement this lowered longitudinal stretch. Preferably, the liner is made of a stretchable material. The liner also has an interior layer of elastomer gel. The design of this prosthetic liner is primarily to prevent the “pistoning” of the amputee's residual limb within the liner and for comfort over pressure-sensitive areas of the residual limb. The liner also includes the use of a low extensibility material which is adhered to the fabric portion of a prosthetic liner or orthotic liner either internally or externally and limits the longitudinal movement while allowing for transversal movement. The customizable nature of the invention allows for shaping and personalization depending on the needs of the user.

The invention relates to a micropowder medicament for treating bone fractures such as fracture, paralysis, osteonecrosis and bone fracture sequelae which are caused by trauma and the like and a preparation method thereof. The micropowder medicament comprises the following raw material medicaments: 4 to 7 parts of pyrite, 2 to 5 parts of herry rhodiola, 2 to 5 parts of frankincense, 2 to 5 parts of myrrh, 1 to 5 parts of safflower, 1 to 4 parts of garden balsam stem, 3 to 5 parts of prepared rhubarb, 2 to 5 parts of dioscorea nipponica, 3 to 6 parts of sea cucumber, 1 to 2 parts of gecko tail, 3 to 7 parts of pyrolusite and the like. The preparation method comprises the step of grinding the raw material medicaments into fine powder with the grain diameter of 300 to 1,000 meshes by a low-temperature freeze drying method, and preparing capsules for oral administration, or blending on site to form paste for external application; moreover, the medicament can be used for oral administration and external application simultaneously. The micropowder medicament has the excellent effect on closed fracture except for head injury, and particularly for traumatic patients who suffer from the bone fractures, both the trauma and the bone fractures can be treated. By the invention, more patients who suffer from the bone fractures and particularly serious patients do not suffer from amputation, do not need wheelchairs, and are recovered quickly, without sequela.

The invention discloses a prosthesis receiving part which includes a receiving head, a first supporting rod, a second supporting rod, a transmission assembly and a first elastic kit. The receiving head and a prosthetic hand head are detachably connected, and the first supporting rod and the second supporting rod are both fixedly arranged on the receiving head; the transmission assembly includes afirst swinging part, a transmission casing and a transmission wheel, the transmission casing is fixedly installed on the first supporting rod, the first swinging part is hinged to the transmission casing, and the transmission wheel is rotatably arranged on the transmission casing and is connected with the first swinging part in a driving mode; a steel wire rope is wound on the transmission wheel,the first end of the steel wire rope penetrates through the receiving head and is in drive connection with the prosthetic hand head, and the second end of the steel wire rope is connected with the first swinging part; and the first supporting rod and the second supporting rod are jointly enclosed to form an installation cavity for the amputated elbow of a patient to extend into and wear. The structure can be applied to all amputated patients who still have elbows, adjustment can be carried out according to the actual situation of different patients, and the prosthesis receiving part can be adapted to people with different arm thicknesses.

The present disclosure is related to a method of managing diabetic foot ulcers (DFUs), pressure ulcers, venous leg ulcers and associated complications such as bacterial infection, gangrene, tissue necrosis, amputation, proximal limb loss and septicaemia. This method of managing is by administration of pharmaceutical composition comprising pentameric type A procyanidin, trimeric procyanidin and tetrameric procyanidin, optionally along with pharmaceutically acceptable excipient.

The invention belongs to the technical field of a bone saw, and particularly relates to a high-precision bone saw. In accordance with the problems that most of conventional bone saws are held by medical personnel for cutting bones, so that influence of human factors is large, cutting errors are easy to generate, and the labor intensity of the medical personnel is strengthened, the invention provides the high-precision bone saw. The high-precision bone saw is characterized by comprising two vertical plates, wherein sliding grooves are formed in one sides which are mutually closed to each other,of the two vertical plates; a placing plate and a pressing plate are mounted in the two sliding grooves in a sliding manner; a horizontal moving plate is mounted at the bottom of the pressing plate in the sliding manner; two vertical mounting plates are fixedly mounted at the bottom of the horizontal moving plate; the same bearing plate is fixedly mounted on one sides which are mutually close toeach other, of the two vertical mounting plates; and a saw is mounted at the bottom of the bearing plate. The high-precision bone saw disclosed by the invention can replace labor to perform amputation, so that the working intensity of medical personnel is reduced, errors caused by labor are avoided, and the high-precision bone saw is higher in accuracy, simple in structure and convenient to use.

The invention relates to the technical field of medical instruments, and concretely relates to a lower limb blood supply condition monitoring device. The device comprises a monitor, a first monitoringunit and a second monitoring unit, and the first monitoring unit and the second monitoring unit are electrically connected with the monitor. The problem that the change of artery ischemia of the lower limb cannot be well reflected due to large subjective feeling individual differences of medical staff can be effectively solved, the skin temperature and color of the affected limb and the arterialpulse change can be monitored in real time, and when the skin temperature and color of the affected limb and the arterial pulse change are monitored to be abnormal, an alarm sound is sent out immediately to remind the medical staff to treat the patient to avoid the patient from missing the optimal treatment opportunity, so the adverse phenomenon of ischemic necrosis of limbs of the patient is avoided, the potential safety hazard of amputation of the patient is eradicated, and the life safety of the patient is effectively guaranteed.

Aiming at the lack of destructive means such as amputation and high cost and leaving scars on the affected area for the treatment of patients with severe trauma infection, the invention provides a Chinese herbal medicine preparation for removing putrefaction and promoting muscle growth. The proportioning composition is: Angelica 8~12g; Huoxiang 10~14g; Papaya 8~12g; Dabupi 8~12g; Chrysanthemum 10~14g; ; Caulis Spatholobus 8~12g; Scutellaria baicalensis 8~12g; Hawthorn 8~12g; Nepeta 10~14g; Arctium 8~12g; Ratio drug is decocted to extract its decocted juice or crushed to make powder. The invention not only has a good effect of removing putrefaction and promoting muscle growth, but also does not require destructive amputation for the patient, and does not leave scars on the affected part, which greatly saves the cost of the patient and reduces the economic burden.

The invention relates to a prosthesis shaft for receiving an amputation stump of an extremity, comprising connecting means for a distal prosthesis device (2), wherein the prosthesis shaft (1) comprises at least one shell (11, 12), which has an arched, open cross-section and the shell ends of which in the applied state overlap each other at least partially, at least one tensioning means (14, 15) being disposed on the shell (11, 12), said means acting in the circumferential direction and tensioning the shell ends relative to each other, and the shell (11, 12) being made of a dimensionally stable plastic having regions with varying elasticity.

The invention discloses a compound cell preparation, a preparation method and application of the preparation. The preparation comprises autologous platelet rich plasma (PRP), autologous adipose derived stromal cells (ADSCs) and endothelial progenitor cells (EPCs) of ADSC sources. The preparation method comprises the following steps that fat is collected, and adipocyte is separated; the adipocyte is cultured through an ADSC culture medium to obtain P2-generation autologous ADSCs; the P2-generation autologous ADSCs are cultured through an EPC culture medium to obtain EPCs of P0-generation ADSC sources; anticoagulation peripheral blood of a receptor is collected and centrifuged to obtain PRP, and the application of the compound cell preparation in the medicine for treating lower extremity arteriosclerosis obliterans due to diabetes is achieved. The compound cell preparation has the advantages that the EPC culture medium is adopted for inducing the ADSCs to be cultured, the EPCs with the expression percentage of CD133 as 68.72+ / -11.60% and the expression percentage of vWF as 75.91+ / -9.83% are obtained, bone marrow or mobilized peripheral blood does not need to be collected, and after affected parts of patients with lower extremity arteriosclerosis obliterans due to diabetes are injected with the preparation, the limb pain feeling and cold feeling can be lowered, and the new generation rate of collateral vessels is 100%; the total survival rate is 78.12%, the limb salvage survival rate is 68.00%, and the survival life of artificial limbs of the patients can be effectively prolonged.

A prosthetic liner for use with a prosthetic socket that has a thermoplastic elastomeric (TPE) layer that is in contact with the amputee's residual limb. The TPE layer is not uniform in thickness but has ridges to extend circumferentially around the TPE layer. A fabric exterior layer covers the outer surface of the TPE layer conforming to the ridges and is used as a substrate to form a mechanical bond to an elastomeric material. Impregnating the elastomeric material within the fabric exterior occurs by applying an uncured material to the fabric exterior layer and onto at least the apex surfaces located within the sealing regions thereby creating an air tight boundary layer when inserted into a socket. When a vacuum is applied the air is evacuated from the volume below the seal layer.

The invention relates to the technical field of medical instruments, and concretely relates to a lower limb blood supply condition monitoring device. The device comprises a monitor, a first monitoringunit and a second monitoring unit, and the first monitoring unit and the second monitoring unit are electrically connected with the monitor. The problem that the change of artery ischemia of the lower limb cannot be well reflected due to large subjective feeling individual differences of medical staff can be effectively solved, the skin temperature and color of the affected limb and the arterialpulse change can be monitored in real time, and when the skin temperature and color of the affected limb and the arterial pulse change are monitored to be abnormal, an alarm sound is sent out immediately to remind the medical staff to treat the patient to avoid the patient from missing the optimal treatment opportunity, so the adverse phenomenon of ischemic necrosis of limbs of the patient is avoided, the potential safety hazard of amputation of the patient is eradicated, and the life safety of the patient is effectively guaranteed.