71 results about "Internal Fixators" patented technology

A durable unitary lens filter is provided for use with a touch sensitive display device for associated control process equipment. A front cover secures the unitary lens filter to the machine. The lens assembly includes a mounting bezel that supports an intermediate lens securing an integral rear lens filter through which a responsive display shows process information to an operator. The front cover captivates the integral bezel to secure the lens to the associated process device. The lens is molded from a semi-rigid material composition including glass fibers. An internal retainer compressibly captivates the bezel against the front cover. The bezel periphery extends substantially beyond the outermost peripheral edge of the rear lens so that forces thereto are transferred and dissipated to the machine housing.

A multi-layer, fiber-reinforced composite orthopaedic fixation device having a design selected based on a desired characteristic of the orthopaedic fixation device. The design may be selected according to a model of the device, the model defining design constraints, and the design may comprise a pattern of the fiber angle for each layer. The selection of a design may be analyzed using finite element analysis to determine whether the design will comprise the desired characteristic.

The present invention provides an internal fixer for an anchor having a releasable tensioning steel wire. The internal fixer of the present invention includes a first outer body (10), which is provided with a tube coupling hole (11), a body seating hole (13) and a wedge receiving body support means; and a wedge receiving body (30), which is seated in the body seating hole (13) and has a conical wedge seating hole (31), into which separated wedge bodies (41) are seated. The internal fixer further includes a wedge unit (40), which is seated in the wedge seating hole (31) of the wedge receiving body (30) and comprises the three separated wedge bodies (41); and a second outer body (20), which supports and covers both the wedge receiving body (30), which is seated in the body seating hole (13), and the wedge unit (40), which is placed in the wedge seating hole (31).

A locking assembly has two members which are moveable into coupling engagement with one another. The two members have lock engaging walls, and one of the members has an opening between the lock engaging walls for receiving a lock. The lock comprises a lock body and a retainer. The lock body has a channel for receiving a portion of the retainer. An end of the retainer extends underneath a retainer engaging wall, thus resisting movement of the lock out of the opening.

The invention discloses precision hole processing equipment for a thin-wall casing type part. An equipment body is installed on the outer side of the casing type part, a base is arranged on the bottomof the equipment body, a vertical rod is installed on the middle of the base, internal fixators are installed on the circumference of the top end of the vertical rod, a screw rod is installed on thetop of the vertical rod, and a convex edge is arranged at the top end of the screw rod. A sliding sleeve is arranged on the outer side of the screw rod in a sleeving mode, top fixators are installed on the circumference of the sliding sleeve, and bottom fixators are installed on the outer side of the base. According to the precision hole processing equipment for the thin-wall casing type part, thescrew rod and the sliding sleeve are cooperatively used, the sliding sleeve can drive the top fixators to move up and down on the screw rod, the top end of the casing part is fixed and prevented frommoving in the vertical direction, meanwhile, flexible adjustment can be carried out according to parts with different heights, simplification and practicality are achieved, and the application rangeof the equipment body is expanded.

An internal fixator for vertebral arch pedicle is composed of several cylindrical correcting rods, flat square transverse bridge, and several screws for vertebral arch pedicle. Said screw has a screw bolt with external spiral thread on its lower part, and an expanded head with a U-shaped deep slot for recepting said correcting rod and shallow square slots on both side surfaces for recepting said transverse bridges.

The invention relates to a panoramic spine endoscope device. The panoramic spine endoscope device comprises an expansion barrel, and an endoscope supporting column is installed on the expansion barrel. The panoramic spine endoscope device is characterized in that an endoscope and an instrument passing hole are formed in the expansion barrel, a resisting assembly is arranged below the expansion barrel, and a soft tissue reactor piece is arranged above the expansion barrel; meanwhile, a plurality of fixing holes are formed in the tail of the endoscope supporting column, a multifunctional piece assembly is connected to the endoscope supporting column, and an auxiliary fixing assembly is arranged on the endoscope supporting column. Thus, the requirement for switching use of a single-endoscope structure and a double-endoscope structure is met, the left and right side faces of an internal fixator and even the exterior of the expansion barrel can be seen in a time-sharing mode, and dead-zone-free panoramic observation is achieved; observation dead zones can be eliminated, and the 3D observation effect can be achieved.

The invention relates to the field of corner combining machines, in particular to a corner combining machine for curtain wall door and window machining. The corner combining machine comprises a closedworking bin, fixers, a bending mechanism, a shape correcting mechanism and a controller, wherein the fixers, the bending mechanism and the shape correcting mechanism are all installed in the closed working bin, the two fixers are arranged on the two sides of the closed working bin in the width direction, the bending mechanism is provided with a first working end and a second working end which arematched with each other, the first working end and the second working end are arranged on the two sides in the length direction of the closed working bin correspondingly and are oppositely arranged,the shape correcting mechanism is arranged under the second working end, and the controller is electrically connected with the bending mechanism and the shape correcting mechanism. According to the corner combining machine, the bending angle can be adjusted, bent clamping rods can be limited, errors are prevented, and aluminum alloy needing to be treated can be clamped.

The invention relates to a preparation method of a degradable composite internal fixator. According to the method, degradable high molecules and inorganic particles with biological activity undergo a combining injection molding integrated technology to prepare the internally degradable adsorbent composite internal fixator. Various internal fixators prepared by the method provided by the invention have good mechanical strength and good biocompatibility, and are degradable and absorbable in vivo.

A garage door window has an outside frame member which has an inside frame member connection. The inside frame member has a protrusion connecting with the inside frame member connection. There is also an outside retainer channel, an inside retainer channel and an outside retainer fitting within the outside retainer channel, with an inside retainer fitting with the inside retainer channel. The inside retainer is nondestructively removable relative the inside retainer channel by a snap fit. An outside track is formed on the outside frame member, between a central inside face of the outside frame member and the outside retainer. An inside track is formed on the outside frame member, between the outside retainer and the inside retainer. A screen is mounted on the outside track, a fixed window mounted on the outside track; and an active window is mounted on the inside track.

The invention discloses an auxiliary steel plate assembly for the treatment of scapular fracture. The auxiliary steel plate assembly comprises a left scapular steel plate and / or a right scapular steel plate. The left scapular steel plate comprises a platy left outer edge, a left scapular glenoid part and a platy left scapular spinal part. The right scapular steel plate comprises a platy right outer edge, a right scapular glenoid part and a platy right scapular spinal part. The left scapular glenoid part is an arc steel plate fitting the scapular glenoid part of a human body. The right shoulder glenoid part is an arc steel plate fitting the scapular glenoid part of the human body. The auxiliary steel plate assembly has the advantages that the parts such as scapular glenoid neck, the outer edge and the spinal part can be fixed at the same time, preparing multiple internal fixators for the patient with complex fracture before operation is not required, the steel plates can also be bent and cut to fix a single part according to the specific facture parts, the left and / right scapular glenoid parts are the arc steel plates fitting the scapular glenoid part of the human body, and intraoperative adjustment of the steel plates can be avoided during a surgical operation, or the steel plates can fit the bone surface just by slightly adjusting the steel plates.

The invention provides a biocompatible material derived from keratin that is useful for many aspects of medical treatment of bone. The keratin material is preferably S-sulfonated and enriched in intermediate filament proteins of high molecular weight. The keratin material may be porous for use as a bone replacement and augmentation product but also provided is the use of dense keratin materials in bone treatment for use as an internal fixation appliance in the treatment of bone fractures and bone regeneration, and a method for preparing the keratin material for use in the preservation, restoration and development of form and function of bone.

The invention provides a device for reconstructing the coracoclavicular ligament. The device is composed of a bone fracture plate and high strength sutures, and the bone fracture plate is made of a titanium alloy material and provided with drill holes; the high strength sutures are made of a polyethylene terephthalate material; the sutures and the bone fracture plate are used in a matched mode; when the device is used, after the clavicle resets, the bone fracture plate is placed on the attachment segment of the clavicle coracoclavicular ligament, holes are drilled in two bones respectively, the high strength sutures sequentially penetrate through a hole channel in the bone fracture plate and holes drilled in the two bones to fix the clavicle onto a coracoids, then a flexible fixing rope is tightened till the clavicle and the coracoids recover to the normal distance, and finally knotting is conducted to conduct fixation. According to the device, in treatment of acromioclavicular dislocation, the problem of coracoclavicular ligament reconstruction is solved, and an internal fixator is removed without secondary surgery; the problem of ligament repair is solved, and pain of self-lifted ligament reconstruction is avoided; the device and an operation mode are minimally invasive, postoperative recovery is high in speed, pain of a patient is reduced, and the device is applicable to acromioclavicular dislocation caused by shoulder joint surgical treatment trauma and the like.

The invention relates to a universal stabilizer used between spinous processes, and belongs to the technical field of medical apparatus and instruments such as implants in the human body. The universal stabilizer is composed of an upper fixing plate, a lower fixing plate and an elastic structure. The upper fixing plate and the lower fixing plate are connected through the elastic structure, the middle of the upper fixing plate and the middle of the lower fixing plate are respectively provided with an opening, lock hooks are arranged at the bottoms of the openings, semicircular screw holes and vertical teeth are arranged on the two sides of the openings, and hollow hole structures are formed between the upper fixing plate and the elastic structure and between the lower fixing plate and the elastic structure. According to universal stabilizer used between the spinous processes, multiple mutually-perpendicular U-shaped deformation structures or springs are used for connection, and therefore elastic movements, such as forward bending, rear protraction, left bending, right bending and rotation in all directions on sagittal views, of operation segments are achieved. The universal stabilizer has the advantages that the structure is simple, stress is dispersed, implantation is convenient, fixation is firm and reliable, universal elastic movements can be achieved, and collision between materials and the spinous processes can be avoided, and the universal stabilizer solves the problems that according to various existing dynamic internal fixators used between spinous processes, the movements of the spines in all directions cannot be kept, the structure is complex, operation is difficult, and use is not durable.

The invention relates to a combined internal fixator for fixing laparoscopic gastric banding. The combined internal fixator is characterized by comprising a T-shaped bone fracture plate, a bone fracture plate for posterior acetabular wall dissection, a locking combined screw, a minitype screw and a fastening screw, wherein the T-shaped bone fracture plate and the bone fracture plate for posterior acetabular wall dissection are fixed by virtue of the locking combined screw; the longitudinal section of the T-shaped bone fracture plate is provided with a locking combined hole; multiple minitype screw holes are uniformly distributed in the transverse section of the T-shaped bone fracture plate; the minitype screw passes through the minitype screw holes so as to fix the T-shaped bone fracture plate to a skeleton; multiple holes are uniformly distributed in the bone fracture plate for posterior acetabular wall dissection, the hole at the middle of the bone fracture plate for posterior acetabular wall dissection is a locking combined hole, the holes at two ends of the bone fracture plate for posterior acetabular wall dissection are fixing holes, and the fastening screw passes through the fixing holes as to fix the bone fracture plate for posterior acetabular wall dissection to the skeleton. The combined internal fixator is unlikely to slide, is capable of adjusting the structure as required and is good in fixation effect.

The invention relates to a nickel-titanium memory alloy tubular bone internal fixator with a Ti / ZrTi(C,N) gradient coating having good biocompatibility on the surface and a preparation method thereof. The surface of a metal matrix of the nickel-titanium memory alloy tubular bone internal fixator is provided with the Ti / ZrTi(C,N) gradient coating with good biocompatibility, wherein the Ti / ZrTi(C,N) gradient coating has a double-layer structure and consists of a Ti intermediate layer which is contacted with the surface of the nickel-titanium tubular bone internal fixator and a ZrTi(C,N) surface layer; the thickness of the Ti intermediate layer is 0.1 to 0.5 mu m; and the thickness of the ZrTi(C,N) surface layer is 1.0 to 5.0 mu m. The preparation method comprises the following steps: 1) processing the tubular bone internal fixator with a nickel-titanium memory alloy; and 2) performing surface pretreatment on the nickel-titanium memory alloy tubular bone internal fixator, and performing two-step magnetron sputtering treatment to obtain the Ti / ZrTi(C,N) gradient coating consisting of the Ti intermediate layer and the ZrTi(C,N) surface layer in sequence on the surface of the tubular bone internal fixator.

A percutaneous gastrostomy catheter includes an internal retainer configured to be maintained pressed against the stomach wall and to disengage itself from a tubing by biodegradation; and an external flange, traversed by the tubing, configured to be pressed against an external face of the abdominal wall and exert, in cooperation with the internal retainer, a pressure adapted to press an external face of the stomach wall against an internal face of the abdominal wall. The internal retainer includes an internal flange. A first face of the internal flange is configured to be pressed against an internal face of the stomach wall, the internal flange being detachable from the tubing under the effect of a simple pulling force. The internal retainer also includes an end piece pressed against the second face of the internal flange, such that the internal flange is between the end piece and the external flange, the end piece being made of a completely biodegradable copolymer or polymer having a bond with the tubing.

A bone fracture internal fixator for repairing a bone fracture of a femoral neck that allows load to be applied to the associated bone parts evenly, and increases the connecting strength between the femoral head and femoral shaft while minimizing the risk of the femoral head being torn apart by the inner connecting member by increasing the diameter of the inner fixing member. The central axial line of the femoral head is offset from the central axial line of the intramedullary nail placed in the medullary cavity of the femoral shaft. In order to bring the inner fixing member such as a lag screw configured to be inserted through the femoral neck close to the central axial line of the femoral neck, the central axial line of the through hole for receiving the inner fixing member is offset from the central axial line of the intramedullary nail.

The invention belongs to the technical field of fracture fixation materials, and particularly discloses an internal fixator. The internal fixator comprises a base body. A superfine diamond graphene layer is arranged on the base body and is composed of nanometer diamond graohene of a lamellar single-crystal structure, and titanium particles are arranged between layers of the nanometer diamond graphene. The thickness of the superfine diamond graphene layer is smaller than 3 microns. The internal fixator is good in performance, long in service life and high in safety.

A garage door window has an outside frame member which has an inside frame member connection. The inside frame member has a protrusion connecting with the inside frame member connection. There is also an outside retainer channel, an inside retainer channel and an outside retainer fitting within the outside retainer channel, with an inside retainer fitting with the inside retainer channel. The inside retainer is nondestructively removable relative the inside retainer channel by a snap fit. An outside track is formed on the outside frame member, between a central inside face of the outside frame member and the outside retainer. An inside track is formed on the outside frame member, between the outside retainer and the inside retainer. A screen is mounted on the outside track, a fixed window mounted on the outside track; and an active window is mounted on the inside track.

The invention discloses a detachable pedicle screw. A screw body and a screw tail adopt a split type structure, micro holes are evenly formed in the screw body and the front end of the screw tail, and the axes of the micro holes are perpendicular to that of the screw body. The pedicle screw adopts the split type structure, namely, a spinning structure, a clamping structure, an insertion structure and the like, the screw body and the screw tail are made of magnesium alloys having advantages of degradability, biocompatibility and the like, meanwhile, the micro holes perpendicular to the axis of the screw body are formed in the screw body and the front end of the screw tail, so that bone trabeculae can be distributed along the micro holes, synchronous reconstruction of the bone trabeculae is allowed during fracture healing, the continuity of the bone trabeculae in vertebrae is recovered, dual healing of fracture cortex and spongiosa is realized, the structure and mechanical conduction features are effectively recovered, the internal fixation complication incidence can be significantly reduced, the fracture treatment effect can be improved, peripheral soft tissue and blood circulation can be effectively protected, the internal fixator related complication occurrence risk is reduced, and pain and economic burden caused by secondary major surgery on patients are avoided.

An internal fixator of intramedullary nail joined with steel plate is disclosed. Said intramedullary nail has two screw holes at its near and far ends. A locking nail has spiral thread and is matched with said two screw holes of intramedullary nail for locking them together after it passes through femur, femur condyle and two steel plate. Its advantages include good mechanical stability, high effect on preventing shift between fractural bone segments, and promoting healing.

The invention discloses an internal fixator for posterior acetabular wall fractures and belongs to an internal fixator which comprises pressure plates, a steel plate, lock screws and fastening screws. One side of each pressure plate is provided with a sheet part, and the other side of the pressure plate is provided with a slab part. Each slab part is provided with a screw fixing hole. Each pressure plate is attached to a fracture part of the posterior acetabular wall. The steel plate comprises a plurality of link bars and a plurality of fixing rings. The link bars are connected with the fixing rings in sequence. The fixing rings on two sides of the steel plate form screw fixing holes. Each fixing ring in the middle of the steel plate comprises a threaded fixing hole and a slide way below the threaded fixing hole. The pressure plates are inlaid in the slide ways through the steel plate. The pressure plates are compressed and locked by the lock screws through the threaded fixing holes. The steel plate and the slab parts of the pressure plates are respectively fixed on bone by the fastening screws through the screw fixing holes. The internal fixator has the advantages that the defect that the fractured posterior wall which is fixed cannot be subjected to fracture pressurizing is overcome; fixation is stable; and the fixed positions of the screws are relatively fixed so that screws are prevented from protruding into the acetabulum.

The invention relates to a universal stabilizer used between spinous processes, and belongs to the technical field of medical apparatus and instruments such as implants in the human body. The universal stabilizer is composed of an upper fixing plate, a lower fixing plate and an elastic structure. The upper fixing plate and the lower fixing plate are connected through the elastic structure, the middle of the upper fixing plate and the middle of the lower fixing plate are respectively provided with an opening, lock hooks are arranged at the bottoms of the openings, semicircular screw holes and vertical teeth are arranged on the two sides of the openings, and hollow hole structures are formed between the upper fixing plate and the elastic structure and between the lower fixing plate and the elastic structure. According to universal stabilizer used between the spinous processes, multiple mutually-perpendicular U-shaped deformation structures or springs are used for connection, and therefore elastic movements, such as forward bending, rear protraction, left bending, right bending and rotation in all directions on sagittal views, of operation segments are achieved. The universal stabilizer has the advantages that the structure is simple, stress is dispersed, implantation is convenient, fixation is firm and reliable, universal elastic movements can be achieved, and collision between materials and the spinous processes can be avoided, and the universal stabilizer solves the problems that according to various existing dynamic internal fixators used between spinous processes, the movements of the spines in all directions cannot be kept, the structure is complex, operation is difficult, and use is not durable.

The invention relates to an airfoil type lumbar-isthmus internal fixator, which belongs to the field of medical devices, and is suitable to be applied to lumbar spondylolysis surgeries. The airfoil type lumbar-isthmus internal fixator is composed of an airfoil (1) and a fixator body (2); and the airfoil type lumbar-isthmus internal fixator is characterized in that: the airfoil (1) is in the shape of an arc sheet, and the fixator body (2) is of a U-shaped structure. An appropriate internal fixator is selected to carry out a surgery according to the diagnosis: firstly, the depth and azimuth of the surgery are determined, and a surgical opening is operated; and then, an internal fixator is implanted in the surgical opening and fixed to a surgery-required position, thereby achieving the purpose of the surgery.

The invention relates to the technical field of medical apparatuses and instruments, in particular to an automatically opening internal fixator made of a nickel titanium shape memory alloy and used for treating the reduction of calcaneal fracture. The fixator is in a hollow spindle shape and is wound by a nickel titanium shape memory alloy wire. The fixator comprises two parts, namely the spindle (1) and fixing ends (2) at two ends of the spindle; and the flexibility of the spindle (1) is matched with that of normal tubercle joint angle. The fixator has the advantages of simple structure, convenient operation, short operation time, and capacity of reducing radiation injury of X rays to patients and medical care personnel, does not need bone graft, really realizes minimally invasive, is favorable for wound healing, relieves the pain of the patients, has high support strength of the nickel titanium alloy and good tissue compatibility, and can play a role in continuously supporting.

The invention discloses a degradable shape memory femur internal fixator which comprises a fixator body, the fixator body is made of a biodegradable shape memory material, and the phase transition temperature of the fixator body is higher than the refrigeration temperature of a medical refrigeration box and lower than the body temperature of a normal human body; and when the temperature of the fixator body is lower than the phase transition temperature, the fixator body is kept in a temporary shape for shape memory. The biodegradable shape memory material comprises the following raw materials:50-80% of polylactic acid, 0-40% of poly epsilon-caprolactone, 0-18% of a lactide-epsilon-caprolactone copolymer, 0-40% of an inorganic filler, 0-1% of a silane coupling agent, 0-1% of a coloring agent and 0-1% of white oil. The degradable shape memory material is good in air permeability and water resistance, has a memory function, and can automatically recover to the original shape when a molded fixing material is heated.

The invention discloses a minimally invasive poking orthopedic internal fixator which comprises fixing bars 1, transverse connecting rods 2, connecting buckles 3, locking hinge components 4, poking hinge components 5, vertebral pedicle locking screws 6 and vertebral pedicle poking screws 7. Two ends of each transverse connecting rod 2 are mounted on the fixing bars 1 via the corresponding connecting buckles 3, the locking hinge components 4 are mounted on the fixing bars 1, the poking hinge components 5 are mounted on the fixing bars 1, the vertebral pedicle poking screws 7 are mounted on the poking hinge components 5, and screws 8 are respectively arranged on the connecting buckles 3, the locking hinge components 4 and the poking hinge components 5. By the aid of the minimally invasive poking orthopedic internal fixator in the design, shortcomings of long wounds, severe hemorrhage, easiness in infection, influence on in-vitro appearance of patients and the like of the current traditional open surgical treatment method can be overcome. Compared with the prior art, the minimally invasive poking orthopedic internal fixator has the advantages of wide application range, simplicity and convenience in operation, structural stability and reliability in usage procedures, good anti-rotation effect and the like.