165 results about "Internal Fixation Devices" patented technology

The present disclosure relates to an internal fixation device including an interface portion, a polymer material coupled to the interface portion, wherein the polymer material includes at least one feature on a surface of the polymer material, and means for allowing adequate expansion of the polymer material on each side of the bone fracture site. A method of fixating the internal fixation device to a bone and other internal fixation devices and methods for fixating are also disclosed.

An orthopaedic implant system includes an orthopaedic implant implantable at a selected location within a corporeal body and configured for delivering at least one therapeutic agent to the corporeal body, the implant defining a reservoir and a plurality of channels, the reservoir configured for receiving the at least one therapeutic agent, the plurality of channels configured for conveying the at least one therapeutic agent from the reservoir to a treatment site relative to the corporeal body, the implant being at least one of an internal fixation device and a porous device.

A holster (10) includes one or more modular inserts (90, 100) positioned within a rigid body (20) of the holster (10) to fit and position a preselected handgun (56) or group of similar handguns or other service items. Also described are security devices including a pivoting security hood (66) and an internal handgun retention device that engages an ejection port (136) of the handgun. The hood (66) and internal retention device may be both opened by a common release lever (70) of the holster (10) that is preferably located along a portion of the holster (10) substantially adjacent a user wearing the holster (10). The release lever (70) drives a rocking latch located along a front wall of the holster body (20), which latches the hood (66) in the closed position and engages an ejection port (136) of a holstered handgun (56). When actuated by the release lever (70), the latch (120) disengages the hood (66) and the ejection port (136), allowing the hood (66) to rotate open and the handgun (56) to be withdrawn from the holster (10).

An orthopaedic implant system includes an orthopaedic implant implantable at a selected location within a corporeal body. The implant includes a first structural material and a second structural material. The first structural material is non-resorbable relative to the corporeal body and is different relative to the second structural material. The implant is an internal fixation device.

The invention relates to a bone implanting and internal fixation appliance with bioactivity and absorbability, which belongs to the field of bio-medical appliances, particularly to the field of medical appliances used for bone wound surgery, reparative and reconstructive surgery and plastic and cosmetic surgery. The appliance includes bone nails and a bone plate made of magnesium and the alloy thereof with bioactivity and absorbability. The bone implanting and internal fixation appliance is a bone internal fixation device, which comprises a blade plate and matched screws, intramedullary nails, a fracture and dislocation fixing device of vertebral column, bone nails or screws having individual fixation effect, wherein the bone internal fixation device is made of magnesium and the alloy thereof with bioactivity and absorbability. The bone internal fixation device can solve the problem in bioactivity of prior bone internal fixation device and promote healing the tissue where the device in implanted. The device also includes a protection layer prepared on the surface of the internal fixation device for controlling the degradation rate of magnesium alloy and the dissolution rate of magnesium ions, thus controlling the bioactivity and the absorption speed of the magnesium alloy device in an organism.

An interior fixture or fitting part for vehicles, particularly motor vehicles, comprising a rigid molded support part (2), a layer of knitted spacer fabric (3) or formed fabric disposed on a surface of the molded support part (2) and a layer of natural leather (4) on the knitted spacer fabric (3) or formed fabric as well as a first adhesive layer (5) between molded support part (2) and knitted spacer fabric (3) or formed fabric and a second adhesive layer (6) between knitted spacer fabric (3) or formed fabric and natural-leather layer (4). An associated production method is also proposed.

The invention relates to novel internal fixation devices, such as bone plates, generally and novel craniomaxillofacial bone plates more specifically and systems for bonding the same. More specifically, the invention relates to bone plates made of a polymer blend of (poly)lactic acid and Ecoflex as well as a novel hot-melt adhesive polymer blend of the same material.

The present invention provides biodegrable, biocompatible aromatic di-acid-containing poly(ester amide) (PEA) polymers with thermo-mechanical properties that can be readily tailored by selection of various combinations and proportions of the di-acid residues in the polymers. The polymers are suitable for use in production of drug-releasing biodegradable particles and implantable surgical devices, such as stents and internal fixation devices. The polymer compositions and surgical devices biodegrade in vivo by enzymatic action to release bioactive agents in a controlled manner over time as well as biocompatible breakdown products, including one to multiple different amino acids.

Surgical instruments and procedures are disclosed that enable the injection of an optimal amount of curable resin and / or the placement of an internal fixation device in an intramedullary canal of a fractured bone. The disclosed instruments and procedures enable a surgeon to clear a portion of the canal of cancellous bone and marrow across the fracture site without damaging the cortical wall.

The present invention is an improved unique odd angle internal fixation device for both a transverse and longitudinal fracture located at the junction of the metaphysis and diaphysis of a long bone such as the proximal humerus. The improved odd angle internal fixation device includes an elongated lag screw and a rectangular shaped guide plate having multiple holes throughout the plate to host pins and screws and four tips on the front side of the plate. A lag screw with a cylindric head having a hexagonal cavity introduced through the diaphyseal segment of the fracture at three angles, 90, and 150 and 160 degrees, cross fixing the respective bone longitudinal and transverse fracture line and settling in the depth of the epiphysis. An additional locking screw is introduced on the top of the lag screw head to securely lock the lag screw after being settled into the epiphysis. The guide plate serves as a guide for the lag screw and allows the engagement of the head of the lag screw to the inner wall of its short barrel portion. The engagement would cause the guide plate which is attached to the barrel, to be compressed against the diaphyseal cortex as the lag screw advances deeper into the epiphysis at said three angles.

A carotid intervention guiding catheter (sheath) including a central lumen adapted to receive a therapeutic catheter and stent delivery catheter. The catheter includes a soft tip adapted to lodge in the common carotid artery. The distal body of the guiding catheter includes a mechanism to fixate the catheter to the wall of the aorta to prevent sliding of the guiding catheter in and out of the common carotid artery. The mechanism is a collapsible set of wings that come out of the wall of the catheter using a mechanical switch outside the body that deploys the wings and fixate the catheter to the wall of the descending or transverse aorta. The same mechanical switch allows the wings to collapse into the wall of the guiding catheter and allow the catheter to be retrieved out of the body.

The invention discloses an inner elastic fixer of vertebral spinous process. The fixer comprises a U-shaped elastic strip (1) and a U-shaped clip (2) arranged at both sides of the U-shaped elastic strip. The invention is characterized in that lateral wings (3) are arranged at both sides of the bottom of the U-shaped elastic strip (1) respectively, the lateral wings (3) extend along the negative direction of a U-shaped opening and a tapping screw hole (5) is arranged on each lateral wing (3). The invention fastens a fixed bolt on the upper spinous process and the lower spinous process by the U-shaped clip and adopts the tapping screw hole to fix the lateral wing on a vertebral lamina at the root of the spinous process, thus greatly reducing force acting on the spinous process so as to improve the stability of fixing and effectively prevent the fracture and incision of the spinous process.

The invention relates to an automatic spraying equipment for round hot-rolled seamless steel pipes, which includes a bottom plate, a lifting adjustment device is installed on the bottom plate, an internal fixing device is installed in the middle of the upper end of the lifting adjustment device, and a spraying device is arranged outside the lifting adjustment device. The invention can solve the problem that the round steel pipe needs to be manually fixed during the spraying process of the round steel pipe, and the deformed position of the steel pipe needs to be sprayed manually, and the fixing of steel pipes of different specifications requires manual adjustment of the clamp position, and the operation is complicated. According to the round steel pipe spraying The location needs to be sprayed manually with the help of spraying tools, which takes a long time. The irritating gas in the spraying process affects the health of the staff. The manual fixing of steel pipes has problems such as poor stability, high labor intensity and low work efficiency. The function of automatic spraying of rolled seamless steel pipes.

The invention discloses an anterior cervical internal fixation device of rotation and non-regression type, which comprises an anterior fixation plate and several bone screws connecting the anterior fixation plate and a human body cone, and corresponding bone screws are set on the anterior fixation plate number of bone screw mounting holes, the bone screw mounting holes are of hemispherical structure, the head of the corresponding bone screw is of hemispherical structure, and the anterior fixation plate is equipped with a detachable The anti-regression cover plate is closely attached to the head of the bone screw. The above-mentioned rotary anti-regression type cervical vertebra anterior internal fixation device is simple in structure, easy to operate, and has a certain rigidity and flexibility; it is convenient for operation The middle bone screw is screwed in, and the direction of the bone screw screw is adjusted at the same time; the bone screw is locked after surgery, it is not easy to retreat, and it is closer to the characteristics of the cervical curvature of the Chinese race.

An orthopaedic implant system includes an orthopaedic implant implantable at a selected location within a corporeal body. The implant includes a first structural material and a second structural material. The first structural material is non-resorbable relative to the corporeal body and is different relative to the second structural material. The implant is an internal fixation device.

Modular configuration for an aircraft interior floor plan design is provided by an fuselage having starboard and port side attachment rails disposed longitudinally parallel to one another. Each of the starboard and port side attachment rails are comprised of outboard and inboard rails and a center rail positioned therebetween. A plurality of interior fixtures are provided with fixed attachment posts asymmetrically oriented relative to a longitudinal centerline plane of the fixture. Such fixtures can therefore be attached to predetermined pairs of the starboard and port side attachment rails to provide for a desired configuration of the fixtures within the fuselage.

The present invention provides biodegradable, biocompatible bis-(α-amino acyl)-diol-diester-containing poly(ester amide) (PEA) and poly(ester urethane) (PEUR) co-polymer compositions with mechanical properties that can be readily tailored by selection of various combinations and proportions of the building blocks of the co-polymers. The compositions are suitable for use in production of drug-releasing biodegradable particles and implantable surgical devices, such as stents and internal fixation devices. The co-polymer compositions, particles and surgical devices biodegrade in vivo by enzymatic action to release bioactive agents in a controlled manner over time as well as biocompatible breakdown products, including one to multiple different amino acids.

Surgical instruments and procedures are disclosed that enable the injection of an optimal amount of curable resin and / or the placement of an internal fixation device in an intramedullary canal of a fractured bone. The disclosed instruments and procedures enable a surgeon to clear a portion of the canal of cancellous bone and marrow across the fracture site without damaging the cortical wall.

Disclosed a pelricspine reduction internal fixation device for treating spondylolisthesis belonging to surgical instrument and providing an internal fixation device which can fix steadily, recover position efficiently, and has a staple that hard to pull out and destroyed. It comprises two bolts at pedicle of vertebral arch for guiding, two double hooks, and a umbosacral rod. The bolt at pedicle of vertebral arch for guiding comprises a part if pedicle of vertebral arch in pole type and a guiding part while the parts is linked by gimbal suspension in the corner dimension of 80-180 degree and the free end of first part is screw. The free end of guiding part has link screw which is locked to one end of double hooks by locking nut, and the umbosacral also has screw. The two bolts at pedicle of vertebral arch for guiding and the two double hooks that mounted transversely up and down are eudipleural. Said device can increase strength of guiding and recovering position, increase the stability of fixing point, supply continuous guiding and suspension and can be operated easily with little injury.

The invention relates to a biological hollow cancellous bone screw which comprises a screw head, a screw body and a screw tail, wherein the screw head, the screw body and the screw tail are sequentially connected; a cavity for storing medicaments is arranged in the screw body; the cavity penetrates through the screw body and the screw tail; screw threads are arranged on the outer surface of the screw head; side holes are also arranged on the screw body; the screw tail is provided with a bolt; and the bolt is matched with the shape of the opening of the cavity at the screw tail and plugs the opening of the cavity. The biological hollow cancellous bone screw of the invention is used as an internal fixation device for a femoral neck and the like which can be fractured easily and can not heal easily and / or parts which can cause osteonecrosis easily, and can accelerate bone repair of fracture parts and prevent aseptic necrosis and nonunion of bones by injecting substances for promoting bone repair and regeneration into the cavity.

The invention relates to novel internal fixation devices, such as bone plates, generally and novel craniomaxillofacial bone plates more specifically and systems for bonding the same. More specifically, the invention relates to bone plates made of a polymer blend of (poly)lactic acid and Ecoflex as well as a novel hot-melt adhesive polymer blend of the same material.

The invention discloses a hollow U-shaped nail device capable of being filled with bone cement, and the U-shaped nail device is an internal fixation device used in the orthopaedic surgery and is especially used in the treatments of vertebral diseases and the like caused by spinal instability, vertebral body compression fracture and osteoporosis. The hollow U-shaped nail device is composed of a hollow pedicle screw, a middle body and a connector; the hollow pedicle screw is provided with a through hole, namely contains an inner hole; the hollow pedicle screw also contains a screw stem with an external thread and a head with a rectangular internal thread; the head of the screw stem is provided with a side hole; the head with the rectangular internal thread is provided with a cylindrical hole and an inner tapered hole; the inner tapered hole is used for connecting the middle body; the middle body fits with the inner hole of the head of the hollow pedicle screw; one end of the connector is a cylindrical rod and is used to fit with the cylindrical hole of the middle body closely; and a rectangular thread fits with the head with the rectangular internal thread of the hollow pedicle screw, and the other end of the connector is provided with a standard Ruhl interface.

The invention relates to a controllable fully-degradable macromolecular material-based composite material and a preparation method thereof. According to the controllable fully-degradable macromolecular material-based composite material, a degradable macromolecular material serves as a matrix; magnesium oxide, magnesium hydroxide or a mixture of magnesium oxide and magnesium hydroxide serves as an enhanced phase; and the adding amount of the magnesium oxide, magnesium hydroxide or the mixture of magnesium oxide and magnesium hydroxide accounts for 0.5-40wt% of the composite material. The controllable fully-degradable macromolecular material-based composite material has the characteristics of high biosecurity, good degradation controllability, low material cost and the like, and has a wide application prospect in the technical field of manufacturing or surface modification of medicine controlled release carriers (such as medicinal capsules) and medical treatment appliance products, especially high-additional-value implants comprising 1) surgical sutures, 2) orthopedic internal fixation devices such as bone plates, bone nails, bone nets and the like, 3) artificial bone or bone repair materials, 4) intravascular stents, 5) tissue engineering stents and the like.

A sinus-canalis internal-fixation device is configured in a shape modeled after the anatomical form and dimensions of a sinus tarsi of an ankle-bone structure of a patient, which anatomically twists and curves and is surrounded by the anatomically irregular surfaces of the talus (ankle bone) and calcaneus (heel bone). The surfaces of the sinus-canalis internal-fixation device mirror the anatomically irregular surfaces of the talus (ankle bone) and calcaneus (heel bone) surrounding the sinus-canalis internal-fixation device. The sinus-canalis internal-fixation device comprises an anatomical shaft and anatomical superior, inferior, and posterior pegs connected to the top, bottom, and back end of the anatomical shaft, respectively. Further, if desired, the sinus-canalis internal-fixation device can be cannulated and / or comprise at least one groove, recess, opening, ridge, and / or hill integrated thereinto. The sinus-canalis internal-fixation device can:a) Block the anterior, medial translation and internal, medial rotation of the talus on the calcaneus to obviate limitations in correcting abnormal foot mechanics,b) Distribute the body weight of the patient over a maximum contact area between the sinus-canalis internal-fixation device and the talus (ankle bone) and calcaneus (heel bone),c) Absorb the shocks caused by the body weight of the patient,d) Create coupling-force affect to prevent superior and inferior togglings of the sinus-canalis internal-fixation device within the sinus tarsi to eliminates the problem of displacement and failure of the sinus-canalis internal-fixation device,e) Correct an anatomically deformed alignment of the ankle-bone structure,f) Maintain the ankle-bone structure in an anatomically correct alignment, andg) Eliminate the need for having to verify the anatomically correct alignment of the ankle-bone structure with a fluoroscope, and thus eliminate the need for exposing the patient to radiation.

The invention discloses an improved intramedullary nail internal fixation device for femoral proximal fracture. The improved intramedullary nail internal fixation device comprises an intramedullary nail, fracture fixation nails and intramedullary nail fixation nails. The intramedullary nail can be arranged in proximal bone marrow of femurs, the fracture fixation nails penetrate the intramedullary nail, are locked with the intramedullary nail and further penetrate fracture proximal ends, and the intramedullary nail is fixed by the aid of the intramedullary nail fixation nails. The improved intramedullary nail internal fixation device has the advantages that the improved intramedullary nail internal fixation device is easy to operate and high in practicality; biological characteristics and mechanics characteristics of in-vivo bones are sufficiently utilized, and accordingly the improved intramedullary nail internal fixation device is in accordance with natural tendency, adapts to trend, conforms to the functional adaptation of the bones and approaches natural reconstruction to the greatest extent; reverse thinking is utilized for integral conception, and significant exploration is carried out on senile femoral proximal fracture treatment which is an orthopedic difficult problem.

In general, various embodiments of the present invention comprise an external fixation device, an internal fixation device, and a lower extremity stabilizer. The external fixation device is connected to the lower extremity stabilizer and the external fixation device is adjustably connected to the internal fixation device. The internal fixation device is capable of being attached to at least one bone in a patient's foot, ankle, and / or lower extremity. The system is capable of simultaneously compressing and stabilizing at least one bone for treating Charcot neuroarthropathy, fractures, revisional foot and ankle surgery including but not limited to malunions, nonunions, delayed unions, fibrous unions, avascular necrosis, resected osteomyelitis, incorporated autogenous and / or allogenic bone grafts for arthrodesis procedures, pseudoarthrosis and bones with decreased mineral density and cortical stiffness, and / or the like for any reconstructive and / or elective foot and ankle surgery where a compression arthrodesis is needed. The external fixation device and / or lower extremity stabilizer can be removed after a certain period of time, leaving the internal fixation system within the body for prolonged stabilization and maintenance of the arthrodesis site(s).

The invention relates to an internal-fixation device of a narrow vertebral plate for lumbar vertebra, thoracic vertebra, cervical vertebra, traumatic and pathological fracture. The internal-fixation device comprises two fixing plates, a connecting screw and a nut; one side of the fixing plate is provided with a plurality of toothed bulges, a sliding groove is arranged on the fixing plate, and the sides of toothed bulges of the two fixing plates are assembled in an opposite way, the connecting screw penetrates through the sliding grooves of the two fixing plates for carrying out connection, and the locking of the fixing plates is carried out by the nut. The sliding groove is a long-waist shaped through groove, and one to six sliding grooves 2 and one to six connecting screws are arranged. The connecting screw adopts a bone screw, and the head of the screw is outer-hexagonal, and the nut adopts an expanding hexagon nut or a hexagon nut.

The invention relates to a combined splint internal fixation device for a femoral intertrochanteric fracture and solves the problem that an internal fixation device in the prior art cannot provide strong and biomechanical fixation for the proximal end of femurs. The device is mainly characterized in that an inside distance bone plate is added, a clamping structure that the inside distance bone plate and an outside bone plate are respectively arranged on the inner side and outer side of the femur and clamp the proximal end of the femur is adopted, and the inside distance bone plate is fixed after the external distance bone plate is implanted with screws. Correspondingly, the invention also designs auxiliary aiming apparatus for proper matching use. The auxiliary aiming apparatus is providedwith two clamping claws which can be used for fixing and clamping the inside distance bone plate and the outside bone plate respectively, and screw holes of the inside distance bone plate and the outside bone plate are always kept in concentric positions. The device has the beneficial effect that absolutely stable inside fixation of the inner side and the outer side of the proximal end of the femur can be provided simultaneously, and shear resistance and rotation resistance are high. Besides, the device is simple in design structure and has certain universality with some parts of the existinginternal fixation system.