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 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.

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 surgical tool with oppositely-crossed structural bones. The flexible surgical tool comprises a flexible continuum structure, wherein the flexible continuum structure comprises a far-end structural body, a near-end structural body and an intermediate connector; the far-end structural body comprises first far-end segments and second far-end segments, and the near-end structural body comprises a near-end segment; first segment structural bones on the near-end segment and first segment structural bones on the first far-end segments are in one-to-one corresponding fastened connection or form a whole; second segment structural bones on the near-end segment and second segment structural bones on the second far-end segments are in one-to-one corresponding fastened connection or form a whole; the intermediate connector comprises two channel fixing plates between which a structural bone guiding channel and a structural bone crossed guiding channel are in fastened connection; the first segment structural bones pass through the structural bone crossed guiding channel, and the second segment structural bones pass through the structural bone guiding channel.

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.

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 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 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 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 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.