53 results about "Structure bone" patented technology

The invention relates to a flexible continuous-body mechanical structure capable of being bent and telescopic. The flexible continuous-body mechanical structure comprises a far structure body, a near structure body and a middle connection body. The far structure body comprises a far partition body, a far locking plate, a structure frame and a far moving chain. The near structure body comprises a near partition body, a near locking plate and a structure frame. The far structure body is related to the near structure body through the middle connection body, and one end of the structure frames are fixed on the near locking plate, sequentially penetrates through the near partition plate, the middle connection body and the far partition plate, and is fixed on the far locking plate, so that when the near structure body is driven to be bent and / or telescopic in any direction, the far structure body is correspondingly bent and / or telescopic in the opposite direction. The flexible continuous-body mechanical structure can be bent and / or telescopic in any direction by means of the very simple structure bodies and has very wide purposes.

The various embodiments disclosed herein relate to implantable devices for the treatment of a structural bone and deformity. More specifically, the various embodiments include systems, devices, and methods for implantation of a flexible or tension band for treating such a deformity, including hallux valgus.

A bone restoration body with a composite porous structure and a preparation method of the bone restoration body. The bone restoration body comprises a porous metal bracket and an infill body with a porous structure, wherein the porous metal bracket is of a three-dimensional net structure, a plurality of pores are arranged in the inner part of the porous metal bracket, and the infill body with the porous structure is fully filled in all the pores. The preparation method combines the direct metal rapid prototyping technology and the freeze drying technology and comprises the steps of preparing the porous metal bracket by a structural design and the direct metal rapid prototyping technology, pouring uniformly-mixed polymer solution or polymer / biological ceramics mixing solution into the porous metal bracket, carrying out freezing treatment, and then forming the infill body with the porous structure through freeze drying so as to obtain the bone restoration body with the composite porous structure, wherein the infill body with the porous structure has micropore characteristics. The bone restoration body has good mechanics compatibility, can obtain good bone conduction performance and bone induction performance, improves bone integration efficiency and can be used for clinical treatment of segmental bone defect of a bearing part.

The invention relates to a modular flexible surgical tool system which is characterized by comprising a flexible continuous body structure, a surgery execution unit and a driving unit, wherein the flexible continuous body structure comprises a far-end structural body, a middle connecting body and a near-end structural body which are sequentially associated; the driving unit is associated with the near-end structural body; a surgery executer in the surgery execution unit is associated with the far-end structural body; when a structure framework driving mechanism in the driving unit drives the near-end structural body to turn toward any direction, the far-end structural body correspondingly turns toward a reverse direction; a surgery executor driving mechanism in the driving unit can drive the surgery executor at the tail end of the far-end structural body, so that motion control on the surgery executor is realized. By virtue of a single surgical incision, the modular flexible surgical tool system can be well applied to a single-pore endoscopic surgery robot system and also can be applied to a porous endoscopic surgery robot system.

The invention relates to a 3D-printed multi-structure bone composite scaffold. The 3D-printed multi-structure bone composite scaffold comprises a multi-layer structure, wherein different layers are made of composite materials in different proportions through 3D printing, and the 3D-printed multi-structure bone composite scaffold has different 3D printing fiber spacings and porosity factors. The specific structure comprises a bionic bone structure, the outer layer is low in porosity and small in aperture to simulate a compact bone structure, the inner layer is high in porosity and large in aperture to simulate a cancellous bone structure, and the scaffold similar to a real bone structure is integrally formed; in an osseointegration structure, the outer layer is high in porosity and large inaperture so as to promote integration with surrounding bones, the inner layer is low in porosity and small in aperture so as to support the overall structure while promoting osseointegration, and thewhole structure is suitable for repairing bone defects. The material of the scaffold is preferably a composite material of tricalcium phosphate (TCP) and polycaprolactone (PCL), and the scaffold hasgood biocompatibility and printability. The bone repair effect is promoted by adding metal ions and performing surface modification treatment.

In an axial flow fan, for reducing fluid noise and further reducing the noise by suppressing solid-conveyed noise (structure-bone noise) generated by the vibration of an electric motor or the like, the axial flow fan is equipped with a propeller, a motor for driving the propeller, and a venturi portion disposed on the outer circumference side of the propeller and provided on its inner circumferential side with a bellmouth through which an air flow generated by the revolution of the propeller passes, wherein the bellmouth has an intake portion whose diameter contracts in a curved shape in the direction of the air flow, a cylindrical portion having a cylindrical shape, and a discharge portion whose diameter slantingly expands in the direction of the air flow.

The invention relates to a flexible surgical tool system using structure bones. The flexible surgical tool system comprises a flexible connecting body structure consisting of a remote end structure body, a middle part connecting body and a near end structure body which are associated in sequence. The flexible surgical tool system is characterized by also comprising a transmission driving unit associated with the near end structure body; the transmission driving unit comprises a plurality of transmission mechanisms respectively and correspondingly driving the near end structure joints; the transmission mechanisms can convert the pair of axial line parallel rotation motion inputs into a pair of axial line vertically intersectant rotation motion outputs, wherein one rotation motion output parallel to the rotation motion input axial line is used for controlling the curving plane pointing direction of the near end structure joints; the other rotation motion output vertical to the rotation motion axial line is used for controlling the curving angle of the near end structure joints in the curving plane, so that the near end structure joints in the near end structure body are driven to curve in any direction; and associated remote end structure joints in the remote end structure body are further driven to curve in an opposite direction.

The invention relates to a flexible surgical tool system adopting a sterile barrier. The flexible surgical tool system comprises a flexible surgical tool and a driving unit, wherein the flexible surgical tool comprises a far-end structure, a near-end structure and a middle connector; the far-end structure comprises a far-end component; the far-end component comprises a far-end interval plate, a far-end fixed plate and a structure bone; the near-end structure comprises a near-end component; the near-end component comprises a near-end interval plate, a near-end fixed plate and a structure bone; the middle connector comprises a channel fixing plate and a structure bone guiding channel; the driving unit comprises a motor part, a motion conversion part and a linear motion mechanism; the motor part comprises a first fixing plate and a first motor; the motion conversion part comprises a driving chain; the rotating output of the first motor is converted into the linear motion of an output rod by the driving chain and is transmitted to a push-pull rod of the linear motion mechanism through the sterile barrier; an output end of the linear motion mechanism is connected with one end of the driving bone.

An active intake muffler for an air intake duct of an internal combustion engine includes a control unit, a sensor assembly operatively connected to the control unit, and a diaphragm constructed to be resistant to heat and moisture. The diaphragm is acoustically coupled with a flow of intake air in the air intake duct and has a surface which confronts the flow of intake air. A transducer is operated by the control unit for causing the surface of the diaphragm to vibrate in a bending vibration mode to thereby produce a structure-bone sound in dependence on noise caused by the intake of air.

The invention relates to a flexible continuous-body mechanical structure capable of being bent and telescopic. The flexible continuous-body mechanical structure comprises a far structure body, a near structure body and a middle connection body. The far structure body comprises a far partition body, a far locking plate, a structure frame and a far moving chain. The near structure body comprises a near partition body, a near locking plate and a structure frame. The far structure body is related to the near structure body through the middle connection body, and one end of the structure frames are fixed on the near locking plate, sequentially penetrates through the near partition plate, the middle connection body and the far partition plate, and is fixed on the far locking plate, so that when the near structure body is driven to be bent and / or telescopic in any direction, the far structure body is correspondingly bent and / or telescopic in the opposite direction. The flexible continuous-body mechanical structure can be bent and / or telescopic in any direction by means of the very simple structure bodies and has very wide purposes.

The invention relates to a flexible surgical operation tool system driven by a twin thread screw which comprises a flexible continuum structure and a drive unit; the flexible continuum structure includes a remote structural body, a local structural body and a middle connector; the remote structural body is provided with at least one remote joint, which comprises a remote space disk, a remote fixing plate and a structural bone; the local structural body is provided with as many local joints as the remote joints. The local joint comprises a local spacer disk, a local fixing plate and a structural bone; the middle connector comprises two channel fixing plates and a structural bone guiding channel located in between; the drive unit comprises a drive unit fixing board provided at the front end of the middle connector. A plurality of straight line motion assemblies are provided between the drive unit fixing plate and the channel fixing plate to convert the input of motor rotation into the output of straight motion of the straight motion mechanism. The output of the straight motion mechanism is linked to one side of the drive bone, which penetrates through the local space disk. The other side is fastened to the local fixing disk.

The invention relates to a flexible surgery tool system containing a driving bone, and the system comprises a flexible surgery tool and a driving unit; the flexible surgery tool comprises a flexible continuum structure composed of a far-end structural body, a near-end structural body and a middle connector; the near-end structural body comprises a near-end structural joint, the near-end structural joint comprises a near-end distance plate, a near-end fixture plate and a structural bone; the middle connector comprises a channel fixing plate and a guiding channel for structural bone; the driving unit comprises a driving unit fixing plate, many straight line mechanisms are arranged between the driving unit fixing plate and the channel fixing plate near the near-end structural body, an output end of the straight line mechanism is fixedly connected to a first driving bone, one end of the first driving bone is fixedly connected to one end of a second driving bone, both of the other ends of the first driving bone and the second driving bone are fixedly connected to the near-end fixing plate after penetrating the near-end distance plate.

A sealed package having a device disposed on a wafer structure and slid structure boned to the device wafer. The device wafer includes: a substrate; a metal ring disposed on a surface portion of substrate around the device and a bonding material disposed on the metal ring. The metal ring extends laterally beyond at least one of an inner and outer edge of the bonding material. A first layer of the metal ring includes a stress relief buffer layer having a higher ductility than that of the surface portion of the substrate and a width greater than the width of the bonding material. The metal ring extends laterally beyond at least one of the inner and outer edges of the bonding material. The stress relief buffer layer has a coefficient of thermal expansion greater than the coefficient of expansion of the surface portion of the substrate and less than the coefficient of expansion of the bonding material.

The invention relates to a biological porous bone cement prepared by compositing Sr-doped calcium-phosphorus bioglass and alpha-tricalcium phosphate and a preparation method thereof. The bone cement provided by the invention is characterized in that the porousness of the bone cement is 39-57%, and the size of a micropore is between 0.5 um and 4 um; and the compression strength is 23.6-38.5 Mpa. In the invention, through compositing the Sr-doped calcium-phosphorus bioglass and alpha-tricalcium phosphate, the porous-structured bone cement is formed. In the invention, the solidification time and microstructure of the bone cement can be adjusted through the rapid dissolving of the Sr-doped calcium-phosphorus glass so as to form a porous structure with a high porousness, and the degradation property of a hydrated product (hydroxyapatite) can be improved; and in addition, by virtue of Sr ions introduced by biodegradable calcium-phosphorus glass, the compression strength of the bone cement is improved, thereby achieving the properties such as high strength and good degradability of the bone cement better.

The invention relates to a flexible operation tool system capable of achieving disinfection. The system comprises a flexible continuous body structure which comprises a far-end structure body, middle connectors and a near-end structure body; the far-end structure body comprises at least one far-end structure section which comprises a far-end spacing disk, a far-end fixing disk and structure bones; the near-end structure body comprises near-end structure sections with the same number as the far-end structure sections, and each near-end structure section comprises a near-end spacing disk, a near-end fixing disk and structure bones; the near-end structure sections are connected with the far-end structure sections in parallel through the middle connectors; the system further comprises a transmission unit which comprises a transmission mechanism fixing plate arranged in front of the middle connectors, a gear transmission mechanism used for converting rotational motion input into linear motion output is arranged on the transmission mechanism fixing plate, the output end of the gear transmission mechanism is connected with one end of a driving bone in a fastened mode through an adapter, and the other end of the driving bone penetrates through the near-end fixing disks and then is connected with the near-end fixing disks in a fastened mode.

The invention discloses a preparation method for a natural basin-based bionic structure bone scaffold. Silk protein and wool protein are taken as main raw materials, a silk protein solution and glycerinum are uniformly mixed according to the mass ratio of 60-120:20-60 and injected in a bone scaffold mold, a wool keratin solution is slowly injected into the mixed solution, and then through -40--20DEG C freezing and -72-5 DEG C vacuum freezing drying under 1.0*105-1.0 Pa, the silk protein / wool keratin bionic bone scaffold material is obtained. The prepared scaffold material is similar to the autogenous bone structure, the porosity rate reaches 70-95%, the hole diameter is uniform in distribution, the outer layer is compact, the hole diameter is smaller, the diameter range is 30-150 microns,the scaffold material has certain mechanical supporting performance, the diameter of inner holes is larger, the diameter range is 250-600 microns, and the scaffold material is suitable for migration,dependence and proliferation of cells.

The invention relates to a transurethral bendable manual cystoscope, comprising a cystoscope body and a three-degree-freedom driving unit; the cystoscope comprises a high definition camera with a lighting module, a fixing disk, two first structure bones, a second structure bone, a supporting component and a thin wall pipe with a circular section, wherein two first structure bones and one second structure bone are evenly distributed in the form of triangle, and front ends of the three are commonly and tightly connected to one side of the fixing disk; the other side of the fixing disk is fixedly connected with the high definition camera, the lighting module of the high definition camera is located on an extension line of the second structural bone; the supporting component is a slender body structure, and the back end of the supporting component is connected with the three-degree-freedom driving unit; a channel for making cables of the first structure bone, the second structure bone and the high definition camera cross through are arranged on the supporting component; two first structure bones and the back end of the second structure bone are connected with the three-degree-freedom driving unit after crossing through the supporting component; the thin wall pipe is sleeved at the outer part of the supporting component.

The invention relates to a flexible operation tool system adopting redundant structural bone arrangement. The system comprises a flexible continuum structure, wherein the flexible continuum structure comprises a far-end structural body, a middle connecting body and a near-end structural body; the far-end structural body comprises at least one far-end structural section, the at least one far-end structural section comprises far-end spacer plates, a far-end fixing plate and structural bone; the near-end structural body comprises at least one near-end structural section, and the number of the near-end structural sections is equal to that of the far-end structural sections; each near-end structural section comprises near-end spacer plates, a near-end fixing plate and structural bone; each near-end structural section is associated with the corresponding far-end structural section through the middle connecting body; the system further comprises a transmission unit, the transmission unit comprises a transmission mechanism fixing plate arranged in front of the middle connecting body as well as a pulley transmission mechanism arranged on the transmission mechanism fixing plate, an output end of the pulley transmission mechanism is a slider moving in a straight line path, the slider is fastened and connected with the middle of the steering structural bone, two ends of the steering structure bone penetrate through the transmission mechanism fixing plate to extend backwards and are fastened and connected with one end of one piece of drive bone through a straight-line motion mechanism, and the other end of the drive bone penetrates through the near-end spacer plates to be fastened and connected with the near-end fixing plate.

The invention relates to a porous structure bone cement screw design and a manufacturing method thereof. The method comprises the following steps that (1) a three-dimensional model of a screw is designed, then, a model of a screw mold is exported, and next, layered slicing software is used for carrying out layered slicing on the model according to the set thickness; (2) the screw mold is printed out through a laser sintering technology; (3) in a vacuum casting machine, bone cement is cast in a vacuum way in the screw mold; (4) the bone cement is taken out from the vacuum casting machine after being completely cured, and the still standing is carried out for a period of time, so that the mold is uniformly cooled in the air; (5) the screw mold filled with the bone cement is solved into a solvent so that the screw mold is dissolved, and finally, a formed porous bone cement screw is obtained. The porous structure bone cement screw design and the manufacturing method solve the problem that bone cement biological materials cannot be used for preparing product parts, and the application range of the biological materials is enlarged. The invention first provides the porous structure design of a medical screw, the fast recovery of the fracture bone can be promoted, and the secondary injury to the bone caused by the traditional medical screw after the operation is avoided.

The invention relates to an electrically-driven multi-degree-of-freedom transurethral surgery system comprising a multi-degree-of-freedom surgical tool and a surgical tool driving unit, the multi-degree-of-freedom surgical tool comprises a flexible continuous body mechanical arm and a mechanical arm driving unit; the flexible continuous body mechanical arm comprises a first-section continuous body, a second-section continuous body and a surgery clamp; the first-section continuous body comprises four equidistantly and parallelly arranged first structural bones, multiple equidistantly distributed first spacing discs and a first fixing piece, the rear end of each first structural bone is connected with the mechanical arm driving unit, and the front end of each first structural bone sequentially penetrates the first spacing discs to be fixedly connected with the first fixing piece; the second-section continuous body comprises four equidistantly and parallelly arranged second structural bones, multiple equidistantly distributed second spacing discs and a second fixing piece, the rear end of each second structural bone is connected with the mechanical arm driving device, and the front end of each second structural bone sequentially penetrates the first spacing discs, the first fixing piece and the second spacing discs to be fixedly connected with the second fixing piece.

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.

A device for bending a bone plate in the same plane comprises bending rods and a bending cover, wherein the bending rods arranged in pairs penetrate through the bending cover, limiting force adding structures are arranged at the head ends of the bending rods, and the bone plate is restrained by the limiting force adding structures; the bending rods are limited by front and rear movable limiting holes of the front and rear surfaces of the hollow bending cover or limited by the movable limiting holes penetrating through the solid bending cover; and when a user operates the tail ends of the bending rods, the motion ranges of the two bending rods are in the same plane, so it is ensured that the bone plate fixed at the head ends of the bending rods does not deflect or rotate during bending to guarantee that the bending of the bone plate is consistent with the expected effect, and bending processing of the bone plate is facilitated.

The invention relates to a bioactive degradable magnesium alloy guided bone regeneration membrane and a processing method for dense pores thereof, comprising: a barrier membrane whose shape fits the bone tissue around the defect area, the barrier membrane is divided into upper and lower parts, and the upper and lower parts of the barrier membrane It is designed to have a skeleton structure area and a regularly arranged through hole area. The arrangement rule of the through hole is dense and dense. There are no through holes at the skeleton structure, and the through hole area is a plurality of 0.5‑5mm circular areas. In the above A number of dense holes less than or equal to 0.2mm are evenly distributed in the circular area, and the spacing of the dense holes is adjusted according to the corrosion rate of the actual material used and the required corrosion effect. The barrier film also includes blind holes with a depth of 0.05mm-0.25mm, and drugs are loaded in the blind holes. The through holes of the present invention can discharge degraded gas, penetrate body fluids, nutrients, and red blood cells, and hinder the penetration of soft tissue cells; the dense holes in the through hole area mainly serve to prevent early soft tissue growth, and at the same time, the implanted At the same time, it can degrade, release magnesium ions, and play an osteogenic role; the barrier membrane is designed with a skeleton structure, and there are no through holes in the skeleton structure, which can be modified and degraded slowly to maintain the mechanical support of the barrier membrane in the process of bone repair. The invention can solve the technical problem that the material between the through holes of the existing barrier membrane is rapidly degraded, and the entire barrier membrane loses mechanical support prematurely after the through holes are connected to each other, which is not conducive to the repair of the bone defect area.

The invention provides a 3D printing method for a large-size complex-structure bone tissue. The 3D printing method comprises the following steps that a bone tissue model is established by utilizing modeling software according to the to-be-printed bone tissue; the bone tissue model is divided into at least two sub-models; the at least two sub-models are guided into a printer to be subjected to 3D printing, and a bone tissue structure module is generated; and the bone tissue structures are integrated into the large-size complex-structure bone tissue by adopting a bonding mechanism. The method is particularly suitable for printing large-size complex-structure bone tissue models such as spines, pelvises and long bones of four limbs; the printing success rate of the divided simple structure module is greatly improved; and even if printing of the divided simple module fails, the module can be printed by being adjusted again, the printing effect of other modules is not affected, the printing time and printing materials are saved, and the printing efficiency is improved.